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Training manual :PIGMA Gal Evo

Training

Handbook

FAMILY: Wall-mounting gas boilers

TYPE: Conventional design

NAME: PIGMA Gal Evo PT IT RDC TRADE MARK: CHAFFOTEAUX

Issue : 1V0 24.07.2012

Technical support for market

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Up-date lliisstt

.

1V0 24/07/12 MP

VERSION DATE NAME CHANGES ENTERED

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INDEX

1 GENERAL INFORMATION .................................................................................................................................. 5

1.1 SIZE & DIMENSIONS ........................................................................................................................ 5 SEALED CHAMBER OVERALL VIEW (FF) ................................................................................................... 6 1.2 OPEN CHAMBER ASSEMBLY VIEW (CF) ...................................................................................... 7 1.3 CONTROL BOARD .......................................................................................................................... 8

1.3.1 General Indications ...................................................................................................................................... 8 1.4 SCREEN.............................................................................................................................................. 9

1.4.1 indications on display scree .......................................................................................................................... 9 1.4.2 Indications of operating modes displayed on the screen ............................................................................ 11

2 OPERATION .......................................................................................................................................................... 12

2.1 HEATING MODE ............................................................................................................................ 12 2.1.1 Assembly view of system in heating mode .................................................................................................. 14

2.2 SANITARY MODE ............................................................................................................................. 15 2.2.1 Assembly view of sanitary mode ................................................................................................................. 17

SOLAR SENSOR SANITARY MODE .......................................................................................................... 17

3 SPECIAL FUNCTIONS......................................................................................................................................... 18

3.1 FLUE CLEANER” FUNCTION ........................................................................................................... 18 3.2 “COMFORT” FUNCTION ................................................................................................................... 20 3.3 “ANTIFREEZE” FUNCTION .............................................................................................................. 22 3.4 “WATER FLOW CHECK” ............................................................................................................... 23 3.5 AIR PURGE” FUNCTION .................................................................................................................. 26 3.6 “SELF ADAPTIVE HEATING RESTART DELAY” .......................................................................... 27

4 HYDRAULIC BLOCK .......................................................................................................................................... 28

4.1 RIGHT HYDRAULIC BLOCK .................................................................................................................. 29 4.2 LEFT HYDRAULIC BLOCK .................................................................................................................... 30 4.3 WAY VALVE ....................................................................................................................................... 31

4.3.3-way valve motor ............................................................................................................................................... 31 4.4 PLATE TYPE HEAT EXCHANGER ................................................................................................ 32

Temperatura limite anticalcare ................................................................................................................................ 32 4.5 PUMP UNIT ....................................................................................................................................... 33

4.5.1 PUMP speed check ..................................................................................................................................... 33 4.5.2 Post-circulation. ......................................................................................................................................... 34

4.6 DRAIN PORT & PLUG ...................................................................................................................... 34 4.7 BY-PASS VALVE .............................................................................................................................. 35 4.8 PRIMARY HEAT EXCHANGER ............................................................................................................ 35 4.9 PRESSURE PICK-UPS (FF ONLY) ................................................................................................. 35 4.10 HEATING LINE STRAINER ............................................................................................................ 36 4.11 HEATING EXPANSION VESSEL ................................................................................................... 37 4.12 SANITARY FLOW RATE ................................................................................................................ 37 4.13 TEMPERATURE SENSORS .......................................................................................................... 39

5 GAS LINE ............................................................................................................................................................... 40

5.1 GAS VALVE TYPE SIT SIGMA 845 ................................................................................................ 40 5.2 SOLENOID VALVE ELECTROPNIC CONNECTION DIAGRAM. .................................................. 40 5.3 GAS REGULATIONS. .................................................................................................................... 41

5.3.1 Supply pressure check. ................................................................................................................................ 41 5.3.2 Maximum sanitary power check ................................................................................................................. 41 5.3.3 Minimum power check. ............................................................................................................................... 42 5.3.4 Soft ignition power checking ....................................................................................................................... 42 5.3.5 Clocking for heating restart aftr burner flame out ..................................................................................... 43 5.3.6 Control of maximum heating power ............................................................................................................ 43 5.3.7 TABE OF GAS ............................................................................................................................................ 46

5.4 BURNER ........................................................................................................................................ 47 5.5 FLUE EXHAUST PORTS (SUCTION TYPE MODEL) ........................................................................ 48 5.6. AIR PRESSURE SWITCH (SUCTION CAP TYPE DESIGN) ...................................................................... 48 5.6 EXTRACTOR (SUCTION CAP TYPE DESIGN)....................................................................................... 49

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5.7.1.POST-VENTILATION ................................................................................................................................ 49 5.6.1 SPOTT UNIT ( MODEL CF) ...................................................................................................................... 50

5.7 FLUE EXHAUST / MODEL CF ........................................................................................................ 50 5.8 SUCTION CUP OUTLET / SUCTION CUPS MODELS / POSSIBLE CONFIGURATIONS ...................................... 51 EXHAUST SYSTEMS (SEALED CHAMBER FF) ............................................................................................... 51

6 ELECTRONIC PCBS ............................................................................................................................................ 55

MAIN CARD ................................................................................................................................................. 55 Electronic Wiring Diagram ...................................................................................................................................... 55 6.1.1 Diagramme électronique FF boiler ............................................................................................................ 56 6.1.2 Diagramme électronique CF boiler ............................................................................................................ 58

7 MENU AND SETTING .......................................................................................................................................... 59

7.1 USER MENU ...................................................................................................................................... 59 7.1.1 GUIDE TO NAVIGATING IN THE MENUS ............................................................................................. 59 7.1.2 MENUS ....................................................................................................................................................... 60

7.2 COMPLETE MENU ........................................................................................................................ 61 7.2.1 Menu 0 : Network ....................................................................................................................................... 61 7.2.2 MENU 2 : BOILER PARAMETERS ............................................................................................................ 61 7.2.3 MENU 4 : ZONE 2 PARAMETERS ............................................................................................................ 63 7.2.4 MENU 5 : ZONE 2 PARAMETERS ............................................................................................................ 63 7.2.5 MENU 6 : ZONE 3PARAMETERS ............................................................................................................. 64 7.2.6 MENU 8:SERVICE PARAMETER .............................................................................................................. 65

8 ERROR CODES ..................................................................................................................................................... 67

8.1 BOILER PROTECTION SYSTEMS. ............................................................................................... 67 8.1.1 Error codes ................................................................................................................................................. 67

9 FIRST STARTING AT WORK ............................................................................................................................ 69

10 PERIODICAL CHECKS .................................................................................................................................. 70

11 DONNEES TECHNIQUES URBIA................................................................................................................. 72

11.1 PIGMA CF ........................................................................................................................................ 72 11.1 PIGMA FF ......................................................................................................................................... 73

Page. 5 of 73


1 GENERAL INFORMATION

1.1 SIZE & DIMENSIONS

LEGEND

A System delivery

B Hot water outlet

C Gas inlet

D Cold water inlet

E Heating system return

PIGMA EVO PIGMA SYTEM EVO

Page. 6 of 73


SEALED CHAMBER OVERALL VIEW (FF)

LEGEND

1 Flue Manifold 16 Filling Tap

2 Air pressure switch 17 CH Filter

3 Air pressure switch pressure intake condensate exhaust 18 Pump

4 Main Heat Exchanger 19 Heating minimum pressure switch

6 NTC1 heating delivery temperature probe 20 NTC2 heating return temperature probe

7 Burner 21 3 Way Valve

8 Ignition electrodes 22 Detection electrode

9 Gas valve 23 Ceramic Fibers

10 Spark generator 24 Combustion Chamber

12 3 bar safety valve 25 Expansion Vessel

13 Secondary Heat Exchanger 26 Modulating Fan

14 CH draining tap 27 Combustion Analysis Test Point

15 Proportional sanitary flow meter

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1.2 OPEN CHAMBER ASSEMBLY VIEW (CF)

LEGEND

1 Flue Manifold 14 CH draining tap

2 Flue Control Thermostat 15 Proportional sanitary flow meter

3 Flue Hood 16 Filling Tap

4 Main Heat exchanger 17 CH Filter

6 NTC1heating delivery temperature probe 18 Pump

7 Burner 19 NTC2 heating return temperature probe

8 Ignition electrodes 20 3 Way Valve

9 Gas valve 21 Detection electrode

10 Spark generator 22 Ceramic Fibers

12 3 bar safety valve 23 Combustion Chamber

13 Secondary Heat Exchanger 24 Expansion Vessel

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1.3 CONTROL BOARD

1.3.1 General Indications

LEGEND

1 Dysplay 7 manometer

2 Start / Stop button 8 Push button for Sanitary

3 « ESC » button 9 Push button sanitary CONFORT

4 Push button for heating 10 Access to menu /validation push-button

5 Select push button for modes : summer / winter / anti-frost l

11 Touche « Reset

1

2

4

9

6

8

7

5

3

10

11

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6 SRA push button

1.4 SCREEN 1.4.1 indications on display scree

ICON DESCRIPTION

Navigation

Navigation Parameter

Code

Default Code

Flame and level of power

Flame error

Heating disable

Heating enable

Sanitary disable

Sanitary enable

Comfort function

Boiler OFF and Anti freeze function enable

Anti-freeze function activate

SRA activate

Solar system

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Page. 11 of 73


1.4.2 Indications of operating modes displayed on the screen During the working of the appliance, it’s possible to verify the status of the boiler:

ECRAN DESCRIPTION ETAT CHAUDIERE

Stand-By STAND-BY. No request.

Adjustment of heating request

Adjustment of the heating request by the button n° 4.the number indicates the set point. They blink during 5 s

Heating mode, burner ON and SRA

function

The radiator who symbolise the heating circuit is surrounded, that fame is enable and there is an indication of the level

power

Heating mode, burner OFF and

SRA function

End of the heating request, the boiler is OFF but there is a post-circulation of 3 min (default value)

Adjustment of sanitary request

Adjustment of the sanitary request by the button n° 8.the number indicates the control temperature. They blink during

5 s

Sanitary tapping, burner ON n

The tap who symbolise the sanitary circuit is surrounded, that fame is enable and there is an indication of the level

power

Comfort mode, burner ON

The boiler is operating an tank heating mode, the 2 numbers indicate the control temperature for sanitary system

En puisage sanitaire brûleur éteint.

End of the sanitary request, the boiler is OFF but there is a post-circulation of 3 min (default value)

Anti-frost function ON

The anti- frost function is activate, management with the NTC1 delivery sensor.

Solar system connected by E-Bus

Solar system is connected by E-Bus to the boiler

TEST mode Combustion analysis

Purge mode Air purge function

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2 OPERATION

2.1 HEATING MODE

CONTROL RANGE

35°C 85°C Temperature readout can be viewed from screen 4 second long, each time heating button is manipulated.

Pump is powered 7 seconds after the 3-way valve, with a view at avoiding surge in system.

Request for Heating

3-Way Valve

powered

Pump powered

The request for heating can be initiated by :

- a room thermostat , - a room sensor, - a programmer or - an Expert Control

The character appears in this moment on the screen. The temperature read by the sensor on the primary start can be viewed on the screen.

Sanitary mode is the rest position for the 3-way valve.

When a heating request is active, the motor driving the 3-way valve is energized for shifting to heating mode.

The stem of the valve is then in « retracted » position.

Extractor powered

Before activating the extractor, a check of pressure switch status is carried out (contact shall be in open position, otherwise default code

symbol 6 07 is displayed on the screen).

The extractor is power-supplied (model FF only).

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Burner ignition

Flame detection

Ignitor and gas valve powered popoweredpopweredentés

When pressure switch contact is set to closure, the gas valve and the igniters are power supplied.

A permanent check of flow rate is developed with the aid of 2 primary sensors (Forward & Return).

Flow rate Control

Gas valve is fed by the ignition power (adjustable by

parameter 2 20).

Flame detection is obtained by the ionization electrode. In the event that the ionization sensor does not sense any current during the ignition phase (8 seconds maximum), the boiler turns into safety state

and code symbol 5 01 is displayed on the screen.

Model FF only: a functional test of extractor is performed by use of air pressure switch. If no signal is detected after 20 seconds, the boiler turns to stand-by,

and code symbol 6 P1 is displayed on the screen.

Testing air pressure

switch

Flame detection enables the gas valve and the extractor to carry out modulation of flame intensity according to heat request. Heating system output is adjustable by parameter 2 31 in operating ranges Minimum output can be controlled directly by acting on the gas valve. Burner flame turn-off will take place at the following T° values: In the 1st min after flame detection:

T°off = set point T° + 8°C In the 2nd min after flame detection

T°off = T° set point T° + 6°C After the 3rd min after flame detection:

T°off = set point T° + 4°C

This logic of operation allows to avoid possible occurrence of delayed ignitions and extinctions by the burner.

Modulation of burner flame

Overheat Control

Overheat control is provided through a thermostat (102±4°C) located at the outlet of the primary heat exchanger. Resetting to be effected manually from the control panel.

Default 1 01 is shown on screen. Reset possible when

temperature reads 87°C.

Notice. Primary start sensor (NTC1) is to control that primary temperature may not exceed set value 88°C; in this occurrence, the sensor interdicts the burner to start ignition.

If flow circulation in the heating sytem is not sufficient to fulfill the purpose, an automatic by-pass valve can open (maximum capacity = 350 l/h).

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2.1.1 Assembly view of system in heating mode

Notice. The primary start sensor (NTC1) checks to ensure that the primary circuit heat level

may never exceed 88°C in temperature; in this state, the sensor interdicts the burner to start flame ignition. When the circulation flow in the heating system is not enough to comply with the need , an autonatic by-pass valve can open ( maximum flow rate 350 l/h).

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2.2 SANITARY MODE

OPERATION RANGE

40°C 60°C By pushing the buttons “+” o “-“,you can see on the

display (for 4 seconds) the set temperature .

HOT WATER REQUEST FOR SANITARY

3-way valve

Heating request

ON

Heating request

OFF

Turning from heating over to

sanitary

The 3-way valve remains set for

sanitary

When a sanitary request is detected by the sanitary flow meter (flow rate > 1,6 l/min), the symbol appears on the display, together with the indication for temperature control.

2 possibilities exist: 1. If boiler is in stand-by mode, the 3-way valve is already set to sanitary position. 2. If boiler is in heating mode, the 3-way valve is being fed for setting to sanitary mode. During this change in mode, burner and pump are both being fed.

Pump under supply ssusupplyalimentée

The pump is under supply.

Extractor powered

Prior to imparting command signals to the extractor, a check is made to the pressure switch (contact must be set to open position, otherwise default code

6 07 is displayed).

Extractor remains under power supply (FF model only).

Air pressure switch Control

pressotat air

Checking closure of air pressure switch contact in 20

seconds, otherwise 6 P1 is displayed.

(for model FF only ).

When the pressure switch contact is closed, gas valve and igniters are both under power supply.

Ignitor and gas valve powered

The gas valve is supplied with ignition power input

(adjustable by parameter 2 20). Ignition of burner

Flame detection is carried out by the ionization electrode. In the event where for the time of the ignition cycle (8 seconds maximum), the ionization sensor does not detect any input power, the boiler

turns into stand-by, and code symbol 5 01 is

displayed on the screen

Burner flame

test

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.

A permanent check of flow rate is developed with the aid of 2 primary sensors (Start & Return).

Flow rate Control

Burner performs flow modulation from minimum output up to maximum output (control over gas valve). Burner will flame out if temperature read by the sensor for primary return NTC2

Burner Modulation

Overheat Control

Control by burner is performed over the sensor for primary return NTC2. Burner flame goes out when temperature reading by primary return sensor is by 4°C higher than set point value.

Temperature Control

Overheat control is provided through a thermostat (102±4°C) located at the outlet of the primary heat exchanger. Resetting to be effected manually from the control panel.

Default 1 01 is shown on screen. Reset possible when

temperature reads 87°C. If there is a bad circulation through the heating system, the automatic by-pass can be opened (max capacity 350 l/h).

Page. 17 of 73


2.2.1 Assembly view of sanitary mode

SOLAR SENSOR SANITARY MODE Boiler is fitted with a solar sensor. On occasion of a sanitary water draw-off from the solar hot water tank , the conrol of burner is accomplished in the following manner :

the solar sensor will enable or not, the burner to operate according to the specified sanitary temperature values set to the Control Board (see Table on the right).

Setpoint T°for sanitary set on Control Board

[°C]

Ignition T° read by solar sensor

[°C]

36 36

40 39

45 43

50 47

55 50

60 54

Inlet Eau froid

e

Example :

Page. 18 of 73


3 SPECIAL FUNCTIONS 3.1 FLUE CLEANER” FUNCTION This function is used to perform proper boiler combustion analysis and maximum and minimum gas calibration. Follow the instructions below to enable it:

PRESS DISPLAY

The display will show this indication

Press Reset button for 5 continuous seconds

With the boiler on “Winter” mode, the 3-way valves is positioned on “heating” and the burner turns on even without heating requested.

With the boiler on “summer” mode: o without sanitary demand the burner turns on in heating; o with sanitary demand the burner turns on in sanitary.

The delivery temperature (NTC1) is checked during the “Flue cleaner” function, as follows: “summer” mode → Off: 86°C; On: 81°C; “winter” mode → Off: 89°C; On: 84°C.

Three different powers can be selected when the function is enabled

PRESS DISPLAY POWER

Turn the knob anticlockwise

Maxi power in heating mode

Max power in sanitary mode

Turn the knob anticlockwise

Minimum power

Page. 19 of 73


To exit the “Flue cleaner” function, press the RESET button. However after 30 minutes the function will be disabled automatically.

Page. 20 of 73


3.2 “COMFORT” FUNCTION

This function allows the user either to activate or not the function « temperature holding in the sanitary water reserve tank.

At workshop level this function remains active over a time range 24h/24h, 7days/7days. Wording « COMFORT », is displayed at the screen bottom and it enables adapting Temperature Hold in the sanitary reserve according to user’s needs.

To program it, comply with the directions given below :

Whit the menu 250, it’s possible to validate this function COMFORT: 0 = Disable 1 = timer 2 = Always activate

How to Program the comfort function

Workshop outgoing configuration. The term « COMFORT »indicates that temperature holding condition is set permanently..

Programming COMFORT function pressing Comfort button allows setting this function n L’icon « Timer » is displayed on the screen.

Function disabling Pressing this button for the third time turn off completely. The boiler is an instant mode. The screen does not indicate the clock symbol any more nor working Comfort mode

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The operating range is variable and depends on the temperature set for the sanitary mode:

TEMP. SET FOR SANITARY MODE OFF TEMPERATURE ON TEMPERATURE

36 40 34

37 41 35

38 42 36

39 44 38

40 45 39

41 46 40

42 47 41

43 49 43

44 50 44

45 51 45

46 53 47

47 54 48

48 56 50

49 58 52

50 59 53

51 61 55

52 63 57

53 64 58

54 66 60

55 68 62

56 70 64

57 71 65

58 72 66

59 73 67

60 74 68

Page. 22 of 73


3.3 “ANTIFREEZE” FUNCTION This function is enabled only if the ON/OFF selector is turned on position ON. It is operated by means of the temperature detected by the heating delivery probe (NTC1).

CONDITION EVENTS TIME

1S

T

CA

SE

The temperature detected by probe

NTC1: Ranges between 3°C

and 8°C

- The PUMP is supplied on speed III - The 3-WAY VALVE alternatively

switches the position of the shaft from 1 minute on “heating” to 1 minute on “sanitary” mode

- The DISPLAY shows the icon

Until the NTC1

temperature is

9°C

If, after 20 minutes,

the CONDITIONS described in the 1st CASE are still present (3°C<NTC1<8°C) automatically check the EVENTS of the 2nd CASE

CONDITION EVENTS TIME

2n

d

CA

SE

The temperature detected by probe

NTC1: Is below 3°C

- The BURNER turns on, supplied with minimum power;

- The 3-WAY VALE is positioned on

“sanitary” and switch every 30 s DHW/CH

- When the temperature is 40°C the burner turn OFF. For 15 minutes the boiler maintain the temperature between 35°C and 40°C

- After 15 minutes there is 2 minutes of post circulation in heating

- Into 90 minutes if the temperature decreases again less than 8°C the burner switch on immediately.

- The DISPLAY shows the icon .

Until the NTC1

temperature is

30°C

If the NTC1 delivery probe is not working (open or short circuit) the “antifreeze” function check is followed by the NTC2 heating return probe but in these cases only the pump works (the burner doesn’t light). The display

doesn’t show the antifreeze enabling code, but the error code of the NTC1 open or short circuit 1 10 or

1 11.

The antifreeze is enabled even if the NTC2 return probe is not working (open or short circuit) but only the pump works (the burner doesn’t light). In this case the display doesn’t show the antifreeze enabling code, but

the error code of the NTC2 open or short circuit 1 12 or 1 13.

The antifreeze is enabled even if the boiler is shutdown due to no flame detection 5 01 or blocked for over

heat 1 01, but in these cases only the pump works (the burner doesn’t light), and the display shows the error

code of blocking and not the antifreeze enabling one. If there is an interruption of the power supply, the boiler maintains in memory all the setting and when the power supply is on the boiler returns in the condition that had before the turning off.

Page. 23 of 73


3.4 “WATER FLOW CHECK”

Check When What happens

Gradient Tman > 7°C/sec (checked every 100ms)

Check always with the flame on, except during the first 4 seconds after flame detection.

1. Immediate safety shutdown 1 P1:

- 10sec of post-circulation - 10 sec of post-ventilation The boiler restarts after 10sec.

2. If the error occurs other 2 times within the

following 4 minutes it will be shutdown 1 03 :

- 20sec of post ventilation - 1min of post circulation.

Gradient Tman > 20°C/sec or

Gradient Trit > 20°C/sec (checked every 100ms)

Check always with the flame on, and up to 7 sec after each turn off for temperature set or safety shutdown.

1. Shutdown 1 04:

- 20sec of post ventilation - 1min of post-circulation.

Tman – Trit > 55°C

Check always with the flame on, and up to 7 sec after each turn off for temperature set or safety shutdown.

1. Immediate safety shutdown 1 P2:

- 10sec of post-circulation; - 10sec of post ventilation. After 10sec the boiler restarts.

2. If within 4 minutes from the first safety shutdown the defect occurs again there will be

a safety shutdown 1 P2 :

- 10sec of post-circulation; - 10sec of post ventilation. After 10sec the boiler restarts but the timer is zeroed.

3. If within 4 minutes from the first safety shutdown the defect occurs again it will be

shutdown 1 05 :

- 20sec of post ventilation - 1min of post circulation.

Trit > Tman + 10°C Check always with the flame on.

1. If the defect occurs for 20 continuous seconds

there will be a safety shutdown 1 P3 :

- 10sec of post-circulation; - 10sec of post ventilation. After 10sec the boiler restarts.

2. If the defect occurs for 20 continuous seconds another 2 times within 4 minutes it will

shutdown 1 06 :

- 20sec of post ventilation; - 1min of post circulation.

Trit > Tman + 30°C Check always with the flame on.

1. Shutdown 1 07:

20sec of post ventilation; - 1min of post circulation

“

Page. 24 of 73


ON

OFF

ON

OFF

ON

OFF

Burner

Extractor

1 04

Evolvement of start T° or return T° > 20°C/sec

>20°C/sec Evolvement

<20°C/sec

1 04

<7 sec

60 sec (post-circ.)

20 sec (post-vent.)

Case “A”

Case “B”

20 sec (post-vent.)

60 sec (post-circ.)

Pump

ON

OFF

ON

OFF

ON

OFF

Burner

Extractor

1 P1

Evolvement of start T° > 7°C/sec

ON

OFF

>7°C/sec

Times

Evolvementn <7°C/sec

1 03 1 P1

10 sec

10 sec

10 sec

255 sec

60 sec (post-circ.)

20 sec (post-vent.)

Pump

Page. 25 of 73


ON

OFF

ON

OFF

ON

OFF

Burner

Extractor

1 P3

Return T° > Start T° + 10°C

ON

OFF

>StartT°+10°C

Time

RetT°

<StartT°+10°C

1 06 1 P3

10 sec

10 sec

10 sec

255 sec

60 sec (post-circ.)

20 sec (post-vent.)

Pump

ON

OFF

ON

OFF

ON

OFF

Burner

Extractor

1 P2

Start T° or Return T° > 55°C

ON

OFF

>55°C

Time

StartT°-RetT°

<55°C

1 05 1 P2

10 sec

10 sec

10 sec

255 sec

60 sec (post-circ.)

20 sec (post-vent.)

Check also 7 seconds after each burner shut down

Pump

Page. 26 of 73


3.5 AIR PURGE” FUNCTION This function can be activated by the installer by the parameter 2 01 (or pressing of the key ESC for 5 sec (continues till to the finish (about 6’) or pressing of the key ESC). It’s aim is to help to purge the residual air inside the primary circuit after a filling cycle. At the activation the following cycle is begun

This cycle can be repeated several times, till the boiler and the heating system are completely purged from air.

3 way valve in heating

Pump on 60 sec.

Pump off 30 sec.

3 way valve in sanitary

Pump on 60 sec.

Pump on 60 sec.

3 way valve in heating

Pump on 60 sec.

Pump off 30 sec.

Pump on 60 sec.

ON

OFF

ON

OFF

ON

OFF

Burner

Extractor

Return T° > Start T° + 30°C

>startT°+30°C

RetT°

<ReturnT°+30°C

1 07

60 sec (post-circ.)

20 sec (post-vent.)

Pump

Page. 27 of 73


3.6 “SELF ADAPTIVE HEATING RESTART DELAY” With the parameter 2 35 it is possible chose the heating restart delay type: 0: manual; 1: automatic. MANUAL: with the parameter 2 36 it is possible set the heating restart delay between 0 and 7 min. AUTOMATIC: the heating restart delay is calculated in base of the heating set-point temperature, see table below:

Consigne Chauffage < 50°C 51-60°C 61-70°C 71-80°C > 80°C

Temps de retard redémarrage

chauffage (minute) 5 4 3 2 1

Page. 28 of 73


4 HYDRAULIC BLOCK

LEGEND 1 Expansion vessel 8 Retuyrn heating sensor

2 Delivery heating sensor 9 Primary heat exchanger

3 Sanitary plate heat exchanger 10 No back-flow valve

4 3 bar safety valve and by-pass 11 Filling tap

5 3 way valve 12 Deareator

6 Sanitary flow meter 13 Minimum pressure switch

7 Pump 14 Drain tap

Page. 29 of 73


4.1 RIGHT HYDRAULIC BLOCK Composite block with integrated functions :

- CH and DHW filter - Electrical diverter valve - All components fitted by clips - Pump unit with deareator valve and Heating pressure switch - Brass connectors for installation - Primary filling system

LEGEND 1 3-way valve motor 6 Heating filter

2 3-way valve 7 Pump

3 Sanitary flow meter 8 Minimum pressure switch

4 No back flow valve 9 Deareator

5 Filling tap

1

2

3

4

5

6

7

8

9

Page. 30 of 73


4.2 LEFT HYDRAULIC BLOCK By Composite module for CH and domestic hot water outlet. Components integrated in the block :

- CH safety valve 3bar - Automatic by-pass - Brass connections - All copper pipes connected by clips

LEGEND 1. 3 bar safety valve and by-pass 3. Sanitary plate heat exchanger

2. By-pass pipe connection

1

2

3

Page. 31 of 73


4.3 WAY VALVE Boiler is fitted with a 3-way valve, 230 volts motor-driven, installed on the return line. When no operating, it is set to sanitary mode.

PARTS DESIGNATION

1. 3-way valve motor

2. Motor hanging clip

3. Valving assembly hanging clip

4. Valving parts

5. Valve assembly

Noteworth is here that the compensation spring is embodied directly into the valve drive motor. 4.3.3-way valve motor

The movement of the 3-way valve is assured by an ELBI l electric motor that is easy to disassemble. The boiler does not have to be emptied in order to replace it but you just have to take out the clip and disconnect the supply wire. The PCB supply always reaches the electric motor according to the function selected (mixed or just sanitary) on the control panel.

« HEATING » POSITION « SANITARY » POSITION

Wiring connections: Alimentation

1 2 3

STM0011

Supply voltage : 230Vac Ohmic Resistance of each winding : 10 kohms

Winding

Sanitary position 2-1

Heating position 2-3

1 4

2 3

5

Page. 32 of 73


4.4 PLATE TYPE HEAT EXCHANGER The sanitary plate type heat exchanger is secured to the hydraulic assemblies, right side and left side, by 2 screws, that are accessible from the front side. Plates made from stainless steel are deep-drawn fabricated parts and welded one to the others. Tightness is ensured by 4 seal lip joints.

Temperatura limite anticalcare

Serve a ridurre la formazione di calcare all’interno dello scambiatore secondario. Durante il funzionamento in MODO SANITARIO lo spegnimento e la conseguente riaccensione del bruciatore è vincolato ai valori di temperatura rilevati dalle sonde NTC1 e NTC2 indicati qui a fianco.

T set Temp. limite

anticalc. START

NTC1 (sonda

mandata)

Non influente

85°C 81°C

NTC2 (sonda ritorno)

> 52°C 65°C 64°C

<52°C 62°C 61°C

SANITARY PLATE-TYPE HEAT EXCHANGER

Main side : Hot water coming from the exchanger enters «A», and flows out from «B». Secondary side: Cold water for sanitary use enters «C» and flows out from «D» reheated. Fluids stream in parallel and in counterflow with a view at ensuring a maximum heat exchange.

Sanitary exchanger : 12 plates provided for 25 KW rating and 14 plates for 30 KW rating

Page. 33 of 73


4.5 PUMP UNIT Pump type: Wilo INMTSL 15/5 HE-2: ( 24 28 kW); Wilo INTMTSL 15/6.7 HE-2: ( 32 kW). The P.C.B. controls modulation of the circulation pump at two different speeds V2 (55w) and V3 (80w).

On “sanitary” the pump always works on V.3 to allow excellent heat exchange

On “heating” the circulating device has 2 speeds that are operated by the heating del-ret ΔT control. Operated as follows: ΔTdel-ret < ΔT – 2°C → V2; ΔTdel-ret > ΔT → V3;

where: ΔT= 20°C (default value, which can be set by parameter 2 39 between 10 and 30°C).

Speed switching is performed with a 5 minute delay (value that cannot be set) up or down. It is possible to exclude the pump modulation with the parameter 2 38: - 0: speed 2 fix; - 1: speed 3 fix; - 2: modulating.

The antisticking function switch on the pump and 3 way valve for 15 sec avery 21 h after the last l sistema antibloccaggio attiva il circolatore e la valvola 3 vie per 15 sec. ogni 21 ore dall’ultimo funzionamento.

CLAS 24 e 28 CLAS 32

4.5.1 PUMP speed check The speed of the pump can be checked by the parameter 8 23 or by measuring the voltage (Vac) between pins 5 and 6 of the electronic card CN10 connector: - 145 Vac: maximum speed; - 0 Vac: minimum speed.

145 Vac: maximum speed; 0 Vac: minimum speed

Page. 34 of 73


4.5.2 Post-circulation. 4.6 DRAIN PORT & PLUG Drainage of primary cicuit is possible by removing the plug from the drain hole at the bottom of the hydraulic assembly of boiler. The plug can be screwed out by use of a hexagon head wrench size 9.

Post-circulation after: 3 way valve

position Time of post circulation Speed pump

Switching off due to:

Room thermostat opening Heating 3 min

(set by parameter 237 beetwen 0 e 15’)

Low

Heating Off by Summer/Winter button

Heating 3 min

(set by parameter 237 beetwen 0 e 15’)

Low

NTC delivery > T set +4 Heating continuasly Low

NTC return > 62°C or 67°C Sanitary continuasly High

End of sanitary demand Sanitary

Par. 254=0 30 sec

if:Tdel<75°C ; 3 min

if Tdel>75°C; Post circulation: 30sec

High

Par. 254=1 3 min

End of comfort cycle Sanitary 30 sec High

End of antifreeze function Heating / Sanitary

2 min High

End of chimney sweeping function

Heating 1 min Low

Solar sensor Sanitary 30 sec Low

Errors

Pressure sensor (102), Low pressure (108, 111)

Heating 40 sec Low

No circulation (103, 104, 105, 106, 107)

Heating 1 min High

Flame missing, flame lift (501, 504)

Heating 2 min Low

Overheat (101), Thermo fuse opening (610)

Heating 2 min Low

No circulation (1P1, 1P2, 1P3) Heating 10 sec High

Floor thermostat opened (116) Heating 90 sec Low

Page. 35 of 73


4.7 BY-PASS VALVE The boiler is equipped with an automartic by-pass valve allowing protection from the occurrence of a poor flow rate from the system, which may be originated for instance from some closures of the thermostatic cocks. This DP is governed by a valve and a spring which open more or less for an extent depending on applied load. The by-pass valve ensures, in the main heat exchanger, a minimum flow rate of 50l/h. It is mounted behind the main valve with 3 bar rating. 4.8 PRIMARY HEAT EXCHANGER Primary heat exchanger is made from cupper metal. It is coated with an aluminum and silicone base paint with high temperature resistant property. The function of this exchanger consists in transfering heat from products of combustion to water flowing in the heating circuit lines or in the sanitary heat exchanger. The exchanger is rack-mounted in the upper part of the combustion chamber. It is held in positiin by two screws secured to the side panels in the chamber. 4.9 PRESSURE PICK-UPS (FF ONLY) Pressure pick-ups are to verify in real time the pressure availabe in the primary circuit. Contact closed > 0,6 b Contact open < 0,4 b

Page. 36 of 73


4.10 HEATING LINE STRAINER A heating filter is placed in the hydraulic assembly, on the right (see picture below) on the return line from the heating flow circuit. strainer mesh measures 1,5 mm in cross-section. To clean it, follow the instructions given below.

Heating strainer

Page. 37 of 73


4.11 HEATING EXPANSION VESSEL Expansion vessel consists of two distinct parts assembled, made from metal sheet 1,8 mm thick. Inside, the tank is separated through a SBR rubber membrane (see, pictures shown below). The expansion vessel is located in the frame behind the boilere. Inflating pressure is 1 bar. Maximum capacity of the system is about 175 litres.

A valve allows the u technician to make a yearly check of inflating pressure in the expansion vessel. 4.12 SANITARY FLOW RATE When set to sanitary mode, because water flow rate is higher than 1,6 litres minute, the turbine fitted inside the sanitary flow meter transfers through a « reed » relay the command to the electronic PCB to initiate the ignition sequence. A sanitary filtre is embodied in the flow meter with a view at protecting the turbine and the sanitray exchanger from penetration of impurities. To prevent any delayed start up caused by surge arising in the cold water pipe network, a time control can be organised through parameter 2 52 within 0.5 sec and 20 sec ( 0.5 sec by default). With the aid of parameter 8 25 and key INFO it is possible to have a reading of sanitary water flow rate. Operation check data of turbine by measuring voltage on CN14 of the electronic PCB is : - 0Vdc = no flow rate - 5Vdc = no flow rate - between 2Vdc and 3Vdc = flow rate

ON for a flow rate > à 1,6 l/min

OFF for a flow rate < à 1,3 l/min

Flow rate limit

8 l/min 25 kW

10 l/min 30kW

Technical Data

Capacity 8 litres

Maximum temperature 90°C

Inflating pressure 1 bar

Maximum pressure in primary circuit 3.0 bar

Reed relay

Air

Water

Page. 38 of 73


DESIGNATION

1. Sanitary Flow Rate

2. Hold Clip for flkow meter inside the hydrauylic assembly

A Flow rate limiter

B Flow meter casing

C Turbine

D Plug with sanitary filtre incorpoorated

Disassembly and re-assembly of sanitary flow meter are made easier by use of a hold clip and of a device fitted to the flow meter casing, to prevent wrong actions from being caused.

2

1

B C D A

Page. 39 of 73


4.13 TEMPERATURE SENSORS To check the delivery and return temperature use the two contact sensor. To read the sanitary water temperature the NTC1 heating delivery is used.

IMPORTANT!!!! Do not use conducting paste for the contact sensors because they alter the resistance value.

TEMPERATURE (°C) RESISTANCE (kOmh)

0 27

10 17

20 12

30 8

40 5

50 4

60 3

70 2

80 1,5

PROBE ERROR CODES

1 10 NTC1 heating delivery probe open or short

circuit

1 12 NTC2 heating return probe open or short

circuit

NTC1

NTC2

Page. 40 of 73


5 GAS LINE 5.1 GAS VALVE TYPE SIT SIGMA 845 The gas valve installed in the boiler is type SIT 845 SIGMA embodying 2 solenoid safety valves supplied from a 230 Vac source and a pressure modulation valve, 24 Vdc, for control of flow to the burner. Flow modulation management is obtained through the electronic PCB, by an output data reading from the 3 temperature sensors. This sort of gas valve can operate both with natural gas and liquid gas as well. In case gas quality needs be changed , it is simply necessary that also injectors in the gas storage tank be changed. Highest allowable pressure to the valve is 60 mb. An igniter typeNAC504 is secured to the gas valve body. This gas valve allows to control : ► maximum power to burner ► minimum power to burner 5.2 SOLENOID VALVE ELECTROPNIC CONNECTION DIAGRAM.

1

2

4

3

7

8

5

6

1 gas outlet to the burner 2 outlet pressure gauge 3 max power adjusting nut 4 intlet pressure gauge 5 gas inlet pipe 6 ignitior device 7 min power adjusting screw

8 compensation gauge

Page. 41 of 73


5.3 GAS REGULATIONS. 5.3.1 Supply pressure check. . 1. Loosen screw “1” (fig. A) and insert the pressure gauge fitting pipe in the

pressure intake. 2. Put the boiler on maximum operating power (hot water tap open). The supply

pressure must correspond with the one foreseen for the type of gas for which the boiler has been prearranged (refer to table below). 3. After checking tighten screw “1” and check the seal

5.3.2 Maximum sanitary power check 1. To check maximum power, loosen screw “2” (fig.B)

and insert the pressure gauge fitting pipe in the pressure intake. 2. Disconnect the compensation pipe of the air

chamber (fig.B). 3. Start the boiler at maximum power with the flue

cleaner function (press Reset button for 5 sec.). 4. The supply pressure must correspond with the one

foreseen for the type of gas for which the boiler has been prearranged (refer to table below). If it does not, remove the protection cap and act on adjusting hexagon nut “3” (fig. C). 5. After checking tighten screw “2” and check the seal. 6. Reassemble the protection cap of the modulator. 7. Reconnected the compensation pipe

MINIMUM SUPPLY PRESSURE

METHANE G 20 BUTHANE G 30 PROPANE G 31

17 mbar 25 mbar 25 mbar

OUTLET PRESSURE SANITARY MAX POWER (mbar)

G20 G30 G31

24 kW CF 12 27,8 35,6

28 kW CF 12,4 27,5 35,3

24 kW FF 12,7 28,1 35,7

28 kW FF 12,4 27,7 35,7

32 kW FF 11 28 35,8

Fig. A

Compensation silicon pipe

Fig. B

Fig. C

Page. 42 of 73


5.3.3 Minimum power check. 1. To check the minimum power loosen screw “2” (fig.B) and insert the pressure gauge fitting pipe in the pressure intake. 2. Disconnect the compensation pipe of the air chamber (fig.B).

3. Have the boiler work on minimum power and disconnect a cable from the modulator (fig.D). The supply pressure must correspond with the one foreseen for the type of gas for which the boiler has been prearranged (refer to table below). If it does not correspond, act on adjusting screw “4” (fig.D) while holding the hexagon nut steady “3”(fig.C). 4. After checking tighten screw “2” and check sealing. 5. Reconnect the cable of the modulator. 6. Reconnect the compensation pipe

OUTLET PRESSURE MIN. POWER (mbar)

G20 G30 G31

24 kW CF 2,2 5,5 6,9

28 kW CF 2,5 5,3 7,5

24 kW FF 2,3 5,5 7,2

28 kW FF 2,5 5,1 7,2

32 kW FF 2,3 5,2 6,8

5.3.4 Soft ignition power checking Regulation carried out on parameter 2 20 1. To check the slow ignition power, loosen screw “2” (fig.B) and insert the pipe of the pressure gauge in the pressure

intake. 2. Disconnect the air chamber compensation pipe (fig.B)(sealed chamber). 3. Open the tap of the hot water, the burner turns on, disconnect the detection electrode in order to have the slow

ignition pressure for 8 seconds before safety block. 4. Change parameter 2 20 (see paragraph 6.2 and 6.3).

OUTLET PRESSURE SOFT IGNITION (mbar)

G20 G30 G31

24 kW CF 2,2 5,5 6,9

28 kW CF 2,5 5,3 7,5

24 kW FF 6,3 10 12,7

28 kW FF 5,1 9,5 13,7

32 kW FF 5,6 12 12

Fig. D

Page. 43 of 73


5.3.5 Clocking for heating restart aftr burner flame out Control measure acted by parameter 2 36 It is possible to set up a clocking between 0 and 7 min in the time interval between burner shut off and

the following re-ignition . This set up is accomplished by parameter 2 36 provided that parameter 2 35 is set to 0.

5.3.6 Control of maximum heating power

There are 2 different types of maximun power in heating mode :

1. Absolute power in heating can be adjusted by use of parameter 2 30. This value allows the operator to set a maximum « limit » to the gas valve, which differs from usual maximun power. This limit must be verified and changed, if necessary, in the event gas quality or the electronic PCB are changed.

G20 G25 G30 G31

PUISSANCE UTILE kW

Pression gaz

mbar

réglage %

Pression gaz

mbar

réglage %

Pression gaz

mbar

réglage %

Pression gaz

mbar

réglage %

25 kW CF 11,37 62 *** *** 26,5 84 34,0 91

25 kW FF 12,0 62 *** *** 25,9 90 34,5 93

30 kW FF 12 63 *** *** 25,98 85 35,3 92

35 kW FF 10,3 59 *** *** 25,3 83 33 93

2. Heating system power is adjustable by use of partameter 2 31. This value shall be adjusted systematically at the time when the installator sets the system into operation. This value is adjustable as from minimum power level up to conrolled power level in menu 2 30.

PIGMA 24 CF

G20 G25 G30 G31

POWER kW Pressure

gas mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

9,9 2,2 0,0 *** *** 5,5 0,0 6,0 0,0

11,0 2,7 37,0 *** *** 6,8 50,0 7,4 52,0

12,0 3,2 39,0 *** *** 8,0 54,0 8,8 56,0

13,0 3,8 42,0 *** *** 9,4 58,0 10,3 59,0

14,0 4,4 44,0 *** *** 11,0 61,0 12,0 63,0

15,0 5,0 47,0 *** *** 12,6 64,0 13,7 66,0

16,0 5,7 49,0 *** *** 14,3 67,0 15,6 70,0

17,0 6,5 52,0 *** *** 16,2 71,0 17,6 72,0

18,0 7,2 54,0 *** *** 18,1 73,0 19,8 76,0

20,0 7,6 55,0 *** *** 18,9 75,0 23,5 80,0

21,0 8,3 57,0 *** *** 20,8 77,0 26,0 83,0

22,0 9,1 59,0 *** *** 22,9 80,0 28,5 87,0

23,0 10,0 61,0 *** *** 25,0 83,0 31,1 90,0

23,7 10,6 64,0 *** *** 26,5 84,0 33,0 93,0

Page. 44 of 73


PIGMA 28 CF

G20 G25 G30 G31

POWER kW Pressure

gas mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

11,2 2,3 0,0 *** *** 5,3 0,0 7,5 0,0

13,0 3,1 34,0 *** *** 7,1 48,0 10,1 56,0

14,0 3,6 37,0 *** *** 8,3 51,0 11,7 59,0

15,0 4,1 39,0 *** *** 9,5 54,0 13,5 63,0

16,0 4,7 41,0 *** *** 10,8 57,0 15,3 66,0

17,0 5,3 43,0 *** *** 12,2 60,0 17,3 70,0

18,0 5,9 45,0 *** *** 13,7 63,0 19,4 72,0

19,0 6,6 48,0 *** *** 15,3 66,0 21,6 75,0

20,0 7,3 50,0 *** *** 16,9 68,0 23,9 79,0

23,0 8,2 53,0 *** *** 20,2 75,0 26,0 83,0

24,0 9,0 55,0 *** *** 22,0 78,0 28,3 86,0

25,0 9,7 57,0 *** *** 23,8 80,0 30,7 89,0

26,0 10,5 59,0 *** *** 25,8 83,0 33,2 92,0

26,7 11,1 62,0 *** *** 27,2 85,0 35,0 97,0

PIGMA 25 FF

G20 G25 G30 G31

POWER kW Pressure

gas mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

9,8 2,3 0,0 *** *** 5,5 0,0 6,8 0,0

10,5 2,6 37,0 *** *** 6,3 54,0 7,8 59,0

11,5 3,2 40,0 *** *** 7,6 59,0 9,4 64,0

12,5 3,7 43,0 *** *** 8,9 62,0 11,1 68,0

13,5 4,4 46,0 *** *** 10,4 66,0 12,9 72,0

14,5 5,0 49,0 *** *** 12,0 70,0 14,9 76,0

15,5 5,8 52,0 *** *** 13,8 73,0 17,0 79,0

16,5 6,5 55,0 *** *** 15,6 77,0 19,3 82,0

17,5 7,3 58,0 *** *** 17,5 79,0 21,7 85,0

20,0 8,0 59,0 *** *** 17,7 80,0 22,5 86,0

21,0 8,8 62,0 *** *** 19,5 82,0 24,8 89,0

22,0 9,7 64,0 *** *** 21,4 85,0 27,3 92,0

23,0 10,6 66,0 *** *** 23,4 87,0 29,8 95,0

24,2 11,7 69,0 *** *** 25,9 90,0 33,0 98,0

Page. 45 of 73


PIGMA 30 FF

G20 G25 G30 G31

POWER kW Pressure

gas mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

11,6 2,3 0,0 *** *** 5,1 0,0 6,2 0,0

13,0 2,9 34,0 *** *** 6,4 48,0 7,8 51,0

14,0 3,4 36,0 *** *** 7,4 51,0 9,0 54,0

15,0 3,8 38,0 *** *** 8,5 53,0 10,4 58,0

16,0 4,4 41,0 *** *** 9,7 57,0 11,8 61,0

17,0 4,9 43,0 *** *** 11,0 59,0 13,3 64,0

18,0 5,5 45,0 *** *** 12,3 62,0 14,9 67,0

19,0 6,2 47,0 *** *** 13,7 65,0 16,6 70,0

20,0 6,8 49,0 *** *** 15,2 69,0 18,4 73,0

24,0 8,9 57,0 *** *** 19,1 76,0 24,4 83,0

25,0 9,6 59,0 *** *** 20,7 79,0 26,5 86,0

26,0 10,4 61,0 *** *** 22,4 81,0 28,6 89,0

27,0 11,3 63,0 *** *** 24,2 83,0 30,9 92,0

28,0 12,1 64,0 *** *** 26,0 84,0 33,2 95,0

PIGMA 30 FF

G20 G25 G30 G31

POWER kW Pressure

gas mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

Pressure gas

mbar

Setting %

13,2 2,0 0,0 *** *** 5,2 0,0 6,8 0,0

14,5 2,4 33,0 *** *** 6,3 50,0 8,2 56,0

16,0 2,9 36,0 *** *** 7,6 54,0 10,0 61,0

17,5 3,5 39,0 *** *** 9,1 59,0 12,0 65,0

19,0 4,1 42,0 *** *** 10,8 62,0 14,1 68,0

20,5 4,8 44,0 *** *** 12,5 66,0 16,4 72,0

22,0 5,6 47,0 *** *** 14,4 69,0 18,9 77,0

23,5 6,3 50,0 *** *** 16,5 72,0 21,6 81,0

25,0 7,2 52,0 *** *** 17,9 74,0 23,4 83,0

28,0 7,8 54,0 *** *** 19,1 76,0 25,0 84,0

29,0 8,4 56,0 *** *** 20,5 79,0 26,8 86,0

30,0 8,9 57,0 *** *** 22,0 80,0 28,6 89,0

31,0 9,5 59,0 *** *** 23,4 81,0 30,6 91,0

32,2 10,3 61,0 *** *** 25,3 83,0 33,0 93,0

Page. 46 of 73


5.3.7 TABE OF GAS

25 CF 30 CF

G20 G30 G31 G20 G30 G31

Lower Wobbe index (15°C 1013 mbar) (Mj/m3)

45,7 80,6 70,7 45,7 80,6 70,7

Nominal pressure gas mbar 20 28/30 37 20 28/30 37

Maximal pressure sanitary mbar 12 27,8 35,6 12,4 27,5 35,3

Soft ignition mbar (Parameter 220)

2,2 (0)

5,5 (0)

6,9 (0)

2,5 (0)

5,3 (0)

7,5 (0)

Adjustable heating power CH mbar (Parameter 230)

11,4 (62)

26,5 (84)

34,0 (91)

11,2 (62)

27,2 (85)

35 (97)

Maxi power heating % (parameter 231)

75 74 78 77 66 72

CH Anti-cycling (parameter 235)

Automatique

Main burner jets 13 15

Diameter burner jets 1,25 0,76 0,76 1,25 0,75 0,75

Max/min consumption (15°C 1013 mbar)

Maxi D H W 2,86 2,13 2,10 3,23 2,41 2,37

Maxi Heating 2,73 2,03 2,00 3,12 2,33 2,29

Mini 1,16 0,87 0,85 1,38 1,03 1,01

25 FF 30 FF 35 FF

G20 G30 G31 G20 G30 G31 G20 G30 G31

Lower Wobbe index (15°C 1013 mbar) (Mj/m3)

45,7 80,6 70,7 45,7 80,6 70,7 45,7 80,6 70,7

Nominal pressure gas mbar 20 28/30 37 20 28/30 37 20 28/30 37

Maximal pressure sanitary mbar 12,7 28,1 35,7 12,4 27,7 35,7 11,3 28 35,8

Soft ignition mbar (Parameter 220)

6,3 (50)

10 (65)

12,7 (65)

5,1 (50)

9,51 (58)

13,7 (66)

4,9 (45)

7,7 (56)

8,2 (56)

Adjustable heating power CH mbar (Parameter 230)

12 (62)

25,9 (90)

34,5 (93)

12,0 (63)

26 (85)

35,3 (92)

10,3 (59)

25,3 (83)

33,0 (93)

Maxi power heating % (parameter 231)

74 71 79 77 66 78 80 62 70

CH Anti-cycling (parameter 235)

Automatique

Main burner jets 11 13 16

Diameter burner jets 1,32 0,8 0,8 1,32 0,8 0,8 1,32 0,78 0,78

Max/min consumption (15°C 1013 mbar)

Maxi D H W 2,86 2,13 2,10 3,31 2,47 2,43 3,81 2,84 2,80

Maxi Heating 2,73 2,03 2,00 3,17 2,37 2,33 3,65 2,72 2,68

Mini 1,16 0,87 0,85 1,38 1,03 1,01 1,59 1,18 1,17

Page. 47 of 73


5.4 BURNER Technology used : Multiple gas burner model POLIDORO, installed in rack frame in the combustiin chamber. The burner assembly is equipped with :

1. one multiple-gas type burner 2. one a storage tank fitted with own injectors secured by screws 3. one ignition electrode array and one ionization sensor

DIAMETER OF THE NOZZLES

Number G20 G30 G31

25 kW CF 13 1,25 mm 0,76 mm 0,76 mm

28 kW CF 15 1,25 mm 0,75 mm 0,75 mm

25 kW FF 11 1,32 mm 0,80 mm 0,80 mm

30 kW FF 13 1,32 mm 0,80 mm 0,80 mm

35 kW FF 13 1,32 mm 0,80 mm 0,80 mm


5.5 FLUE EXHAUST PORTS (SUCTION TYPE MODEL)

On the boiler top there is installewd an outlet socket (60/100) for connection with suction type exhaust pipes . Two pressure ports allow measuring quality of combustion during the COMBUSTION ANLYSIS mode as well as 2 pressure taps are provided for pressure switch tests.

5.6. AIR PRESSURE SWITCH (SUCTION CAP TYPE DESIGN) The boiler is fitted with an air pressure switch to check the vacuum state in suction caps and the extractor for regular functioning.

25kW: Off = 50Pa/0,50 mbar On = 60Pa/0,60 mbar

30kW: Off = 74Pa/0,74 mbar On = 89Pa/0,89 mbar

The pressure tap (-) of the pressure switch is jointed to the pressure tap in the extractor. The pressure tap (+) is measured directly in the casing of the air pressure switch. A measurement of Dp is taken during every sequence of ignition. If the read value is correct, the burner can ignite a flame. In thepresence of any trouble, faults of 2 types are likely to be found:

6 07 : pressure switch contact closed while extractor is not powered yet.

6 P1 : pressure switch contact remains open while extractor is being energized.

For preventing condensation risks from occuring in the pressure switch tube, a regenerator for condensate is fitted in the tube.

Page 41 of 59

Combustion

Reset

ON 1 3

OFF

1 3

Taps for pressure

switch testing

Pag. 49 de 73

Manuale Didattico – ACO


5.6 EXTRACTOR (SUCTION CAP TYPE DESIGN) Technical data : - 25kW: Motor 35W - 30kW: Motor 45W

- 35 kW Motor 60 W

5.7.1.POST-VENTILATION Different cycles of post ventilation according to the cases of figures:

during a setting to safety 5 01 : 40 seconds

during a setting to safety linked to water circulation 1 03, 1 04, 1 05, 1 06 or 1 07 : 20 seconds

during a fault in water flow circulation 1 P1, 1 P2 or 1 P3 : 10 seconds ►Post-ventilation after a heating request:

parameter 2 43= 0 5 seconds ( at each burner firing stop)

parameter 2 43= 1 3 minutes ( at each burner firing stop) ►Post-ventilation after a sanitary request: parameter 2 54= 0 T°Dép<75°C = No post-ventilation; start T°>75°C = 3 min

parameter 2 54= 1 fix 3 min (at each burner flame out).

Connector CN 22 (brackets 11 and 12) of electronic PCB

NC NA NC NA

Connector CN 22 (brackets 11 and 12) of electronic PCB

FAN OFF Pressure

tap (-)

Pressure tap(+) FAN ON

Pag. 50 de 73



5.6.1 SPOTT UNIT ( MODEL CF) The SPOTT unit is to control the flue stack for a good thermal draught. This valve is located in the anti-backflow device. This is a sort of thermal contact that opens when temperature is 75±3°C Its opening causes the burner to

flame out, and it brings the boiler to stop; code symbol 6 01 is displayed on screen. Reset takes place

automatically 12 minutes after flame out.

5.7 FLUE EXHAUST / MODEL CF

The boiler is equipped with an anti-return device measuring 130 mm in diameter in its upper part and 125 mm in lower part. Installatiom of the flue stack must be in compliance with the regulations in force in the country concerned.

THERMAL DRAUGHT FAILURE

6 01 : Opening contavt of SPOTT unit.

SPOTT

Pag. 51 de 73



5.8 SUCTION CUP OUTLET / SUCTION CUPS MODELS / POSSIBLE CONFIGURATIONS

EXHAUST SYSTEMS (SEALED CHAMBER FF) The boiler is arranged for both coaxial smoke exhaust 60/100mm and for the split 80/80mm (two ways to connect the intake pipes). Combustion analysis intakes are built-in the smoke exhaust neck.

SISTEMA DI SCARICO COASSIALE

COAXIAL 80/100 e 80/125

C12 C32 C42

TWIN PIPE 80/80

C12 C32 C42 C52 C82

Pag. 52 de 73



Pag. 53 de 73



TYPE OF EXHAUST

Length (L) DIAPHRAME

[mm] from [m] to [m]

24

kW

60/100 COAXIAL SYSTEMS

C12,C32,C42, B32

0,5

0,75 Ø44

0,75

4 NO


C12,C32,C42, B32

0,75

3 Ø44

3

11 NO

80/80 SPLIT SYSTEMS

C12, C32,C42 (Air/Flue)

0,5 / 0,5

9 / 9 Ø44

9 / 9

21 / 21 NO

C52,C82 (Air/Flue)

1 / 0,5

1 / 23 Ø44

1 / 23

1 / 44 NO

B22 (Flue)

0,5

23 Ø44

23

45 NO

TYPE OF EXHAUST



28

kW


C12,C32,C42, B32

0,5

0,75 Ø44

0,75

4 NO


C12,C32,C42, B32

0,5

3 Ø44

3

11 NO

80/80 SPLIT SYSTEMS


0,5 / 0,5

11 / 11 Ø44

11 / 11

24 / 24 NO

C52,C82 (Air/Flue)

1 / 0,5

1 / 27 Ø44

1 / 27

1 / 50 NO

B22 (Flue)

0,5

27 Ø44

27

50 NO

Pag. 54 de 73



TYPE OF EXHAUST



32

kW


C12,C32,C42, B32

0,5

0,75 Ø46

0,75

4 NO


C12,C32,C42, B32

0,5

2 Ø46

2

8 NO

80/80 SPLIT SYSTEMS


0,5 / 0,5

9 / 9 Ø46

9 / 9

23 / 23 NO

C52,C82 (Air/Flue)

1 / 0,5

1 / 17 Ø46

1 / 17

1 / 23 NO

B22 (Flue)

1

17 Ø46

17

23 NO

Pag. 55 de 73



6 ELECTRONIC PCBs

MAIN CARD The boiler uses a GAL2EVO ATM electronic card for complete checking of the boiler and one users interfaces display LCD; The GAL2EVO ATM electronic card is protected by two 2A, 250 VAC fuses and a VDR protects the card against supply voltage peaks up to 275VAC. The supply voltage tolerance is 230 Vac +10% -15% and does not have to comply with the phase and with neutral. Electronic Wiring Diagram

Pag. 56 de 73



6.1.1 Diagramme électronique FF boiler

Pag. 57 de 73



Pag. 58 de 73



6.1.2 Diagramme électronique CF boiler

Pag. 59 de 73



7 Menu and setting

7.1 USER MENU

To adjust and control the different existing parameters, 8 distinct menus are assigned to the boiler.

N° de menu

Contenu Pour

l’utilisateur Pour le

technicien

0 Réseau E-Bus connecté Oui Oui

2 General parameters of boiler Non Oui

4 Parameter Controls in zone 1 Heating Non Oui



8 Parameters for After Sales Service Non Oui

7.1.1 GUIDE TO NAVIGATING IN THE MENUS

The button Menu/OK give access to the different menus.

1. Touch button “MENU/OK”, menu “0” is displayed on the left side of the screen.

2. To be enabled to select the wanted menu, it is sufficient to turn heating knob (rep 4). The menus scroll from o to 8 and are displayed on the left of the screen..

3. To select the menu, touch button “MENU/OK”. To have access to menus 0 to 8, the user shall enter a password code: 234 with the aid of buttons « + » and « - » and validate it by touching once again button MENU/OK”

4. After it, heating knob (rep 4) allows selecting sub-menus.

5. To select the wanted sub-menu, press « MENU’/OK” button.

6. With the aid of button, rep « 4 » , it is

possible to select the wanted parameter .

7. To be enabled to change the parameter value, press “MENU’/OK” button. To change it, turn key rep « 4 », and select the wanted value.

8. To save the new value of the parameter, press “MENU’/OK” button

9. To come out from menus, press button “ESC” several times, until a temperature data is obtained on the left of the screen

10

4

Pag. 60 de 73



7.1.2 MENUS

Access Code

MENU Complete menu

0 Bus

02 Bus Network

04 Display Boiler

2 Boiler Parameter

20 DHW Set point temperature

22 General set point boiler

23 Central Heating Zone 1

24 Central Heating Zone 2

25 Domestic Hot water

26 Boiler manual setting

27 Test - Utilities

28 Reset Menu

4 Zone Parameter 1

40 Set point

42 Z1 setting

43 Z1Diagnostic

5 Zone Parameter 2

50 Set point

52 Z2 setting

53 Z2 Diagnostic

6 Zone Parameter 2

60 Set point

62 Z3 setting

63 Z3 Diagnostic

8 Service Parameter

81 Boiler statistics

82 Boiler

83 Boiler Temperatures

84 Storage

85 Service

86 Error History

VAL Direct access to parameters of the boiler

821 – 822 – 823 – 824 – 825 – 827 – 830 – 831 – 832 – 833 – 835 - 840

ERR Last 10 errors

Day, Month, Year

PCB Direct access for the parameters to modify when change PCB

220 – 228 – 229 – 231 – 232 – 233 – 234 – 247 – 250 – 253

GAS Direct access for the parameters to modify when change gas valve

220 – 231 – 232 – 233 – 234 - 270

SET Direct access for the parameters to modify when setting the boiler

220 – 223 – 231 – 238 – 245 – 246

TIME Time

Hour Date – Month - Year Timer

Pag. 61 de 73



7.2 COMPLETE MENU 7.2.1 Menu 0 : Network

7.2.2 MENU 2 : BOILER PARAMETERS

Me

nù

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Para

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Function Range Default setting

0 2 BUS NETWORK

0 2 0 Network presence in the bus (only visualization) /

0 4 USER INTERFACE

0 4 1 Backlight time (min) 1 ÷ 10 ; 24h 24h

0 4 2 Thermoregulation button deactivation

0 - 1 0

Me

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2 0 GENERAL

2 0 0 DHW set point temperature 36 ÷ 60 /

2 2 GENERAL

2 2 0 Slow ignition as % of the maximum heating power

0 ÷ 100 See gas

table

2 2 1 Modulation ratio 1/10 0: Off 1: On

1

2 2 3 Floor thermostat or Room

thermostat zone 2 selection 0: Floor thermostat

1: Room thermostat zone 2 0

2 2 4 Thermoregulation 0: disabled 1: enabled

0

2 2 5 Heating delay restart

0: disabled 1: 10 seconds 2: 90 seconds 3: 210 seconds

0

2 2 8 Boiler version

0: combi 1: Storage with NTC (tank)

2: only heating or storage with thermostat

3: micro-storage

Depend on the boiler version

2 2 9 Boiler nominal power 0 ÷ 100 kW Depend on the boiler

2 3 CENTRAL HEATING-1

2 3 0 Maximum heating power

(heating absolute maximum power percentage) (%)

0 ÷ 100

2 3 1 Maximum heating power

(heating absolute maximum power percentage) (%)

0 ÷ 100 See gas

table

2 3 5 Select of heating delay manage 0: manual (set with par. 2 36)

1: automatic 1

2 3 6 Heating delay (min), enabled by

par. 2 35= 0 0 ÷ 7 3

Pag. 62 de 73



2 3 7 Heating post-circulation (min) 0 ÷ 15

CO: non stop 3

2 3 8 Pump modulation on heating Not active /

2 3 9 ΔT for pump modulation (°C) Not active /

2 4 CENTRAL HEATING-2

2 4 3 Heating post-ventilation 0: 5 sec 1: 3 min

0

2 4 4 Boost time (min) 0 ÷ 60 (with Auto function working)

16

2 4 7 Heating water pressure

detection device

0: temperature probes only 1: pressure switch 2: pressure sensor

2

2 4 9 External temperature correction

(°C) -3 ÷ 3 0

2 5 DOMESTIC HOT WATER

2 5 0 Sanitary comfort function 0: disabled

1: enabled for 30 minutes after a heating request 2: always enabled

0

2 5 1 Comfort anticycle (min) 0 ÷ 120 0

2 5 2 Sanitary delay start

(anti water hammering) (dec) 5 ÷ 200 5

2 5 3 Sanitary switch off logic 0: anti-scale (62 o 65°C).

1: set-point+4°C 0

2 5 4 Sanitary post-circulation and

post-ventilation

0: Post-ventilation: Tflow<75°C = no post-

ventilation; Tflow>75°C = 3 min (minimum speed); Post-circulation: 30sec

1: Post-ventilation: 3min

Post-circulation: 3min

0

2 5 5 Heating start delay after sanitary

(min) 0 ÷ 30 0

2 5 6 CELECTIC 0: Off 1: On

2 5 7 Antilegionella function (only for boilers with external thank and

NTC sensor – par. 228 = 1)

0: disabled 1: enabled

0

2 5 8 Frency between anti-bacterie

function To 24 at 72 h

2 6 BOILER MANUAL SETTING

2 6 0 Manual mode attivation 0: Off 1: On

0

2 6 1 Boiler pump control

(set parameter 260 =1) 0: Off

1: On (timed 10 min) 0

2 6 2 Fan control

(set parameter 260 =1) 0: Off

1: On (timed 10 min) 0

2 6 3 Diverter valve control

(set parameter 260 =1) 0: Sanitary

1: Heating ( timed 10 min) 0

2 7 TEST & UTILITIES

2 7 0 Flue cleaning function 0: Off

1: On (select desired power) 0

2 7 1 Air Purge function 0: Off 1: On

0

2 8 RESET MENU’

2 8 0 Reset menu 2 factory setting YES: press button “OK” NO: press button “ESC”

/

Pag. 63 de 73



7.2.3 MENU 4 : ZONE 2 PARAMETERS

7.2.4 MENU 5 : ZONE 2 PARAMETERS

Men

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Para

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4 0 SETPOINT

4 0 2 Temperature setpoint zone 1 Par 425 ÷ Par 426 /

4 2 ZONE 1 SETTING

4 2 1 Thermoregulation mode

selection

0: fixed delivery temperature 1: basic thermoregulation

2: only room probe 3: only outside probe

4: room probe + external probe

1

4 2 2 Select thermoregulation curve 0_2 ÷ 1_0 (par. 420=0) 1_0 ÷ 3_5 (par. 420=1)

(with Auto function enabled)

0_6 (par 420=0) 1_5 (par 420=1)

4 2 3 Select thermoregulation curve

parallel shifting

-7 ÷ 7 (par. 420=0) -14 ÷ 14 (par. 420=1)

(with Auto function enabled ) 0

4 2 4 Influence of the room probe on

thermoregulation 0 ÷ 20


4 2 5 Zone 1 maximum heating

temperature (°C) 20 ÷ 45 (par. 420=0) 35 ÷ 82 (par. 420=1)

45 (par. 420=0)

82 (par. 420=1)

4 2 6 Zone 1 minimum heating


20 (par. 420=0)

35 (par. 420=1)

4 3 DIAGNOSTICS

4 3 4 Heating request by zone 1 OFF: no ON: yes

(only visualization)

Me

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5 0 SETPOINT


5 2 ZONE 2 SETTING


selection




1



0_6 (par 520=0) 1_5 (par 520=1)


parallel shifting

-7 ÷ 7 (par. 520=0) -14 ÷ 14 (par. 520=1)







45 (par. 520=0)

82 (par. 520=1)

Pag. 64 de 73



7.2.5 MENU 6 : ZONE 3PARAMETERS



20 (par. 520=0)

35 (par. 520=1)

5 3 DIAGNOSTICS


(only visualization)

/

Me

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Para

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6 0 SETPOINT


6 2 ZONE 2 SETTING


selection




1



0_6 (par 420=0) 1_5 (par 420=1)


parallel shifting

-7 ÷ 7 (par. 420=0) -14 ÷ 14 (par. 420=1)







45 (par. 420=0)

82 (par. 420=1)



20 (par. 420=0)

35 (par. 420=1)

6 3 DIAGNOSTICS


(only visualization) /

Pag. 65 de 73



7.2.6 MENU 8:SERVICE PARAMETER

Me

nu

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8 1 BOILER STATISTICS

8 1 0 Hours burner on in heating (h x

10) (only visualization) /

8 1 1 Hours burner on in sanitary (h x

10) (only visualization) /

8 1 2 Number of flam lifts

(n x 10) (only visualization) /

8 1 3 Number of ignition cycles

(n x 10) (only visualization) /

8 1 4 Average heat request duration (only visualization) /

8 2 BOLILER

8 2 0 Ratio of burner modualtion 0 to 165 mA

8 2 1 Fan state 0: Off ; 1: On (only visualization) /

8 2 2 Ventilator speed Ventilator speed X 100 (only

visualization) /

8 2 3 Pump Speed 0= OFF

1 = Low speed 2 = high speed

8 2 4 Pump state 0= sanitary; 1= haeting ((only

visualization) /

8 2 5 Sanitary flow rate l/min /

8 2 6 Status of pressostat 0 = Open 1= Closed

/

8 2 8 Gas power (kW) (only visualization) /

8 3 BOILER TEMPERATURE

8 3 0 Temperature set on heating (°C) (only visualization) /

8 3 1 Temperature measured on

heating delivery (°C) (only visualization) /

8 3 2 Heating return measured

temperature (°C) (only visualization) /

8 3 3 Sanitary measured temperature

(°C) (only visualization) /

8 3 5 External temperature (°C) (only visualization) /

8 4 STORAGE AND SOLAR (if present)

8 4 2 Sanitary inlet temperature (°C) (only visualization)

8 5 SERVICE

8 5 0 Month to next maintenance 0 ÷ 60 24

8 5 1 Maintenance on days act 0: Off 1: On

0

8 5 2 Maintenance warning reset YES: push button “OK” NO: push button “ESC”

/

8 5 4 Display software version (only visualization) /

8 5 5 Main PCB software version (only visualization) /

8 6 ERROR HISTORY

Pag. 66 de 73



8 6 0 Last 10 errors / /

8 6 1 Reset error list SI: push button “OK”

NO: push button “ESC” /

MENU TIME (Non accessible lorsque l’Expert Control est connecté)

HEURE

DATE

Jour

Mois

Année

TIMER

Prog1

06:00 – 22:00

Prog2

06:00 – 08:00 12:00 – 14:00 17:00 – 22:00

Prog3

06:00 – 08:00 16:00 – 22:00

Pag. 67 de 73



8 ERROR CODES 8.1 BOILER PROTECTION SYSTEMS. There are two types of errors for malfunctions: - Shutdown (solved by resetting); - Safety stop (No Reset: the boiler will start working again properly when the cause is removed). There is a third type of error code that is used to indicate a malfunction that does not stop the boiler which continues to work properly (Indication). 8.1.1 Error codes The error codes are divided in six different functional units, in other words the first figure indicates which functional unit of the boiler is involved in the error:

Display Description Reset

PRIMARY CIRCUIT 1 01 Overheat Reset

1 02 Heating proportional pressure short circuit or open circuit No Reset

1 03 Circulation or presence of water: Gradient Tman > 7°C/sec for 3 times Reset

1 04 Circulation or presence of water: Gradient Tman > 20°C/sec or Gradient Trit > 20°C/sec

Reset

1 05 Circulation or presence of water: Tman – Trit> 55°C for 3 times Reset

1 06 Circulation or presence of water: Trit > Tman + 10°C for 3 times Reset

1 07 Circulation or presence of water: Trit > Tman + 30°C Reset

1 08 Water missing on the primary circuit (P<Pmin) for boiler with minimum pressure switch on/off (par.247=1)

No Reset

1 10 Heating delivery probe open or short circuit (NTC1) No Reset

1 11 Water missing on the primary circuit (P<Pmin) for boiler with pressure sensor(par. 247=2)

No Reset

1 12 Heating return probe open circuit or no signal (NTC2) No Reset

1 14 Outdoor probe open circuit or no signal No Reset

1 18 Primary Probes Test Fail

1 P1 Circulation or presence of water: Gradient Tman > 7°C/sec Signalling

1 P2 Circulation or presence of water: Tman – Trit> 55°C Signalling

1 P3 Circulation or presence of water: Trit > Tman + 10°C Signalling

SANITARY CIRCUIT

2 03 Tank probe open circuit or no signal No Reset

2 05 Sanitary inlet probe open circuit (solar) No Reset

2 09 Tank overheat /

PCB

3 01 Eeprom display error No Reset

3 02 GP – GIU communication error No Reset

3 03 PCB internal error No Reset

3 04 More than 5 resets executed in 15 minutes No Reset

3 05 PCB internal error Reset

3 06 / 3 07 PCB card internal error

3 P9 Sched.Maintanace-Call Service Reset

COMMUNICATION WITH PERIPHERALS

4.11 Room Sensor not available Z1

1 Primary circuit 2 Sanitary circuit 3 Electronic PCB 4 Communication with peripherals 5 Ignition and detection 6 Air inlet / Fume outlet 7 Zones

Pag. 68 de 73



4.12 Room Sensor not available Z2

4 13 Room Sensor not available Z3 No Reset

IGNITION AND DETECTION

5 01 Flame missing Reset

5 02 Flame detected with gas valve closed No Reset

5 P1 First ignition attempt failed Signalling

5 P2 Second ignition attempt failed Signalling

5 P3 Flame detachment during operation Signalling

AIR INLET / FUME OUTLET

6.07 Pressostat ON Fan OFF

6.08 Pressostat OFF Fan ON

6 P1 Delay pressotat

6 P2 Pressostat open Reset

Pag. 69 de 73



9 FIRST STARTING AT WORK

1.Check plug connection and electric power supply. Validated …………………….

2. Verify type of gas (make changes by using proper tooling kit if necessary).

Validated…………………….

3.Verify gas connectioins.

Validated …………………….

4. Measure inlet gas pressure at rest.


5. Verify flue exhaust system


6.Fill-up heating installation Validated …………………….

7. Check hydraulic plug connections and drain plugs. Validated …………………….

9. Purge installation by use of « Purge » function ( by touching button ESC) one time during 5 sec.


10. Set power point for maximum heating .

Validared…………………….

11. Adjust heating parameters according to installation features Validated …………………….

13. Check sanitary flow

rate at the water draw off taps


15. Measure ionization

current at rated power

Validated…………………….

16. Explain to user

functional procedures to follow


8.Remove jamming coindition from the pump if

necessary.

Validé …………………….

12. Verify maximum and minimum power in sanitary mode. Validated …………………….

14. Perform a record of combustion grade («Combustion Analysis » function) by touching RESET button during 5 sec sur touche RESET). Validated …………………….

Pag. 70 de 73



10 PERIODICAL CHECKS Plate-type heat exchanger for sanitary system When : every year Commentary : by mesuring DT at different sanitary flow rates. By pass & 3-way Valve When : every year Commentary : Visual aspect / Property Heating filtre When : every year Commentary : Visual aspect / Property Expansion vessel When : every year Commentary : Inflating pressure at 1 bar Control assembly for sanitary water flowmeter When : every year Commentary : start-up fòlow rate / Visual aspect / Property Ignition electrode & Ionization sensor When : every year Commentary : Visual aspect / Property/ Distance to burner / ionization Current > à 1 µA Burner and supply tank When : every year Commentary : Visual aspect / Property / Flame outline

Pag. 71 de 73



Air Pressure Switch When : each year How : Visual aspect / Property of tube and the recovery / measurement of DP as a function of the values specificed in Training Handbook. Extractor When : every year Commentary : Visual Aspect / Property - turbine Exchanger When : every year Commentary : Visual Aspect / Property

Pag. 72 de 73



11 Données techniques URBIA

11.1 PIGMA CF

Modèle PIGMA 25 CF 30 CF Certification CE (pin) 1312BR4794 1312BR4923

Type chaudière B11bs B11bs

Nominal heat input max/min (60/80°C) (Hi) kW 25,8/11 29,5/13

Nominal heat input max/min (60/80°C) (Hs) kW 28,7/12,2 32,8/14,4

Sanitary heat input max/min (60/80°C) (Hi) kW 27,0/11,0 30,5/13

Sanitary heat input max/min (60/80°C) (Hs) kW 30,0/12,2 33,9/14,4

Thermal power max/min (60/80°C) kW 23,7/9,9 26,7/11,2

Combustion efficiency (of flue gas) % 93 92,3

Efficiency at the nominal heat input (60/80°C) Hi/Hs % 91,9/82,8 90,6/81,6

Efficiency at 30% 30°C Hi/Hs % 91,2/82,1 89,7/80,8

Efficiency at the minimal heat input (60/80°C) Hi/Hs % 90,2/81,2 86,5/77,9

Efficiency rating (dir. 92/42/EEC) n° 2 2

Maximum heat loss to casing (∆T=50°C) % 0,6 0,6

Heat loss to flue with burner in function % 7,0 7,7

Pertes fumées brûleur à l’arrêt % 0,4 0,4

Depression minimale Pa 3 3

Flue gas temperature (G20) (80°C-60°C) °C 118 133

CO2 content (G20) (80°C-60°C) % 5,8 6,2

CO content (0%O2) (80°C-60°C) ppm 53 41

O2 content (G20) (80°C-60°C) % 10,1 9,3

NoX class (Less than 70 mg/kWh) n° 3 3

Excess air (80°C-60°C) % 93 80

Pression minimal de fonctionnement bar 0,4 0,4

Heating maximum pressure bar 3 3

Expansion vessel capacity litres 6,5 7

Expansion vessel pre-load bar 1 1

Heating temperature max/min (high temp. range) °C 82/35 82/35

Sanitary temperature max/min °C 60/36 60/36

Sanitary specific flow (10 min. with ∆T=30°C) Litres/min 12,2

Quantity of hot water ∆T=25°C Litres/min 14,2 15,8

Quantity of hot water ∆T=35°C Litres/min 10,2 11,3

Confort performance stars (EN13203) n° 3 3

Minimum hot water flow Litres/min 1,6 1,6

Sanitary pressure max/min bar 7/0,2 7/0,2

Supply voltage frequency V/Hz 230/50 230/50

Total electrical power absorbed W 79 90

Electrical system protection IP X4D X4D

Température ambiante minimum de l’habitation °C 5 5

Weight kg 30 30

Dimensions (L x H x P) cm 440x745x388

Pag. 73 de 73



11.1 PIGMA FF

Modèle URBIA 25 FF 30 FF 35 FF

Certification CE (pin) 1312BR47

93 1312BR47

93 1312BR49

24

Type chaudière C12- C32- C42- C52- C62- B22- B32

Nominal heat input max/min (60/80°C) (Hi) kW 25,8/11 30/13 34,5/15

Nominal heat input max/min (60/80°C) (Hs) kW 28,7/12,2 33,3/14,4 38,3/16,7

Sanitary heat input max/min (60/80°C) (Hi) kW 27/11 31,3/13 36/15

Sanitary heat input max/min (60/80°C) (Hs) kW 30/12,2 34,8/14,4 40/16,7

Thermal power max/min (60/80°C) kW 24,2/9,8 28,1/11,6 32,3/14

Combustion efficiency (of flue gas) % 94,5 93,9 93,9

Efficiency at the nominal heat input (60/80°C) Hi/Hs % 93,8/84,5 93,6/84,3 93,6/84,3

Efficiency at 30% 30°C Hi/Hs % 93,6/84,3 93,2/83,9 92,6/83,4

Efficiency at the minimal heat input (60/80°C) Hi/Hs % 89,2/80,3 89,3/80,3 93,3/84

Efficiency rating (dir. 92/42/EEC) n° 3 3 3

Maximum heat loss to casing (∆T=50°C) % 0,7 0,3 0,3

Heat loss to flue with burner in function % 5,5 6,1 6,1

Pertes fumées brûleur à l’arrêt % 0,4 0,4 0,4

Depression minimale mbar 1,0 1,04 0,96

Flue gas temperature (G20) (80°C-60°C) °C 105 114 116

CO2 content (G20) (80°C-60°C) % 6,5 6,4 6,6

CO content (0%O2) (80°C-60°C) ppm 50 92 97

O2 content (G20) (80°C-60°C) % 8,8 8,9 8,6

NoX class (Less than 70 mg/kWh) n° 3 3 3

Excess air (80°C-60°C) % 72 74 69

Pression minimal de fonctionnement bar 0,4 0,4 0,4

Heating maximum pressure bar 3 3 3

Expansion vessel capacity litres 7 7 7

Expansion vessel pre-load bar 1 1 1

Heating temperature max/min (high temp. range) °C 82/35 82/35 82/35

Sanitary temperature max/min °C 60/36 60/36 60/36

Sanitary specific flow (10 min. with ∆T=30°C) Litres/min

Quantity of hot water ∆T=25°C Litres/min 14,5 16,8 19,3

Quantity of hot water ∆T=35°C Litres/min 10,4 12 13,8

Confort performance stars (EN13203) n° 3 3 3

Minimum hot water flow Litres/min 1,7 1,7 1,7

Sanitary pressure max/min bar 7/0,2 7/0,2 7/0,2

Supply voltage frequency V/Hz 230/50 230/50 230/50

Total electrical power absorbed W 112 129 152

Electrical system protection IP X5D X5D X5D

Température ambiante minimum de l’habitation °C 5 5 5

Weight kg

Dimensions (L x H x P) cm 440x745x388

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