BMR 80Domestic hot water calorifier for wall-hung boilers English

29/05/06

Installation instructions

Instructions for use

Technical instructions

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Important recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Main dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Package list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 Assembling the boiler/DHW calorifier unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 Connecting the calorifier to the primary circuit (Exchanger). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Connecting the tank to the domestic water circuit (secondary circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95 Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Commissionning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131 Magnesium anode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132 Valve or safety unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133 Descaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134 Cladding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Maintenance form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Symbols used

Caution danger Risk of injury and damage to equipment.Attention must be paid to the warnings on safety of persons and equipment.

Specific information Information must be kept in mind to maintain comfort.

Reference Refer to another manual or other pages in this instruction manual.

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Introduction

BMR 80 domestic hot water calorifiers are connected to the side ofwall-hung boilers.

For a proper operating of the boiler, follow carefully theinstructions.

1 Compliance

Compliance of design and manufacture

This product complies with the requirements of European Directive97 / 23 / EC, Article 3, Paragraph 3, on pressure equipment.

Electrical compliance / Marking

This product complies to the requirements to the European Directivesand following standards:• 73/23/EEC Low Voltage Directive

Reference Standard : EN 60.335.1.• 89/336/EEC Electromagnetic Compatibility Directive

Reference Standards : EN 50.081.1 / EN 50.082.1 / EN 55.014.

2 Important recommendations

Positioning the appliance:- in a frost-free room- as close as possible to draw-off points in order to minimise energy

losses through the pipes

Insulating the pipes.Heating water and domestic water must not come intocontact with each other. Domestic water must not circulatevia the exchanger.

Service the appliance regularly to ensure that it operates correctly.Any operation on the installation must be performed by aqualified technician respecting professional regulationsand in accordance with this document.

Keep this document close to the place where the tank is installed.No modifications must be made to the domestic hot water tank if theguarantee is to remain valid.

Description

The high quality steel tank is lined with food standard quality vitrifiedenamel, which protects it from corrosion and preserves all thequalities of the domestic water.The tank is protected against corrosion by a magnesium anode whichshould be checked every 2 years and replaced if need be.The thermal exchanger welded into the tank is made of smoothpiping, the inside of which, which is in contact with the domesticwater, is enamelled.The appliance is insulated using CFC-free polyurethane foam.The outside casing is made of painted steel sheeting.The insulating material can be easily detached from the tank. Apolyethylene film prevents the foam sticking to the tank. Thismeasure facilitates the recycling of materials.

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1 Main dimensions

R: Conical threadG: Exterior cylinder thread, sealed by flat joint

A Echanger bleed valveB Sensor thimble tubeH Anode10 Domestic hot water outlet R 3/411 Domestic cold water inlet R 3/412 Heat exchanger inlet G 3/413 Heat exchanger outlet G 3/4

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2 Technical characteristics

3 Package list

BMR 80Primary circuit (heating water)Maximum operating temperature °C 95Maximum operating pressure bar 10Maximum operating pressure in accordance with W/TPW (3) bar 6Coil water capacity l 3Coil exchange surface m2 0.75Secondary circuit (domestic water)Maximum operating temperature °C 95Maximum operating pressure bar 10Maximum operating pressure in accordance with W/TPW (3) bar 6Water capacity l 80PerformancePower exchanged (1) kW 22.6Continuous flow (1) l/h 555Specific flow at ∆ T 30 K (2) l/min 16.5Draw-off capacity l/10 mm 165Weigh kg 49(1) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit

(heating water): 80 °C(2) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit

(heating water): 80 °C - DHW sensor temperature: 60 °C(3) Swiss Directives

Description BMR 80- Tank EE 53- Linking kit HG 29

To be ordered separately

- NTC sensor AD 226

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Installation

BMR 80 domestic hot water calorifiers are connected to the side ofwall-hung boilers.

1 Implementation

The DHW calorifier can be placed to the left or right of the boiler.The appliance must be fixed to a solid wall, capable ofsupporting its weight when full of water.

Assembly to the leftAssembly to the right

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2 Assembling the boiler/DHW calorifier unit

2.1 Fitting the boiler mounting frame with BMR 80 calorifier

See: Boiler installation instructions.

2.2 Fitting the calorifier mounting rail

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2.3 Hanging the boiler

2.4 Hanging the tank

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3 Connecting the calorifier to the primary circuit (Exchanger)

Hydraulic connection between boiler and calorifier exchanger is doneusing connection kit HG 29.

4 Connecting the tank to the domestic water circuit (secondary circuit)

When making the connections, it is imperative that the standards andcorresponding local directives are respected.

These domestic hot water tanks can operate at a maximum operatingpressure of 10 bars. As a general rule, the tanks operate at 7 bars.

4.1 Specific precautions

Before making the connection, rinse the domestic water inletpipes to prevent the introduction of metal or other particles into theDHW tank.

4.2 Provision for Switzerland

Make the connections according to the instructions of the SociétéSuisse de l'Industrie du Gaz et des Eaux. Comply with localinstructions from water distribution plants.

C000692

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4.3 Safety valve

In compliance with the safety rules, fit a sealed safety valveto the tank's domestic cold water inlet.

Calibration of the safety valve : 10 bar.For France, we recommend hydraulic safety units fitted with amembrane with the NF marking.- Integrate the safety valve in the cold water circuit.- Install the safety valve close to the calorifier in a place which is

easy to access.Dimensions

The safety unit and its connection to the DHW tank must be of at leastthe same diameter as the cold water supply pipe in the tank'sdomestic circuit.No isolating devices should be located between the safety valve orunit and the tank.The safety unit outlet pipe must have a uniform and sufficient gradientand its diameter must be at least equal to that of the outlet openingin the safety unit (to prevent the flow of water being hindered if thepressure is too high).

The outlet pipe in the valve or safety unit must not be blocked.France

The level of the safety unit must be lower than that of the cold waterinlet to enable draining. Otherwise, fit a drainage pipe to the lowestpoint of the tank.

Germany

Define the dimensions of the safety valve in accordance with the DIN1988 standard :

Fit the safety valve above the calorifier to obviate having to drain thetank during servicingInstall the drainage valve at the lowest point on the calorifier.

4.4 Isolation valves

Hydraulically isolate the primary and secondary circuits using stopvalves to facilitate maintenance operations on the calorifier. Thevalves make it possible to carry out maintenance on the tank and itscomponents without draining the entire installation.These valves are also used to isolate the calorifier when conductinga pressurised check on the leak tightness of the installation if the testpressure for the calorifier is greater than the admissible operatingpressure.

If the mains pipes are made of copper, fit a sleeve made ofsteel, cast iron or any other insulating material between thetank's hot water outlet and the pipes to prevent corrosionto the connection

4.5 Connecting the domestic cold water

Make the connection to the cold water supply in accordance with thefollowing diagram. Install a water drain in the boiler room and a"funnel-siphon" for the safety unit.

The components used for the connection to the cold water supplymust comply with the prevailing standards and regulations in thecountry concerned. Fit a non-return valve to the domestic cold watercircuit.

4.6 Pressure reducer

If the supply pressure exceeds 80% of the valve or safety unit setting(e.g. 5.5 bars for a safety unit set at 7 bars), a pressure reducer mustbe installed upstream of the DHW tank. Install the pressure reducerdownstream of the water meter in such a way as to ensure the samepressure in all of the pipes in the installation.

4.7 Bleed circuit

During the heating process, water can flow through thebleed circuit to guarantee the safety of the installation. Donot block!

Capacitylitres

Dimension of the valveMin. dimension of the inlet

connection

Heating outputkWmax

< 200 R or Rp 1/2 75

200 1000 R or Rp 3/4 150

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4.8 Domestic hot water circulation loop

To guarantee the availability of hot water as soon as the taps areturned on, a circulation loop between the draw-off points and therecirculation pipes in the DHW tank can be installed. A non-returnvalve must be included in this loop.

4.9 Measures to take to prevent hot water blow back

Fit a non-return valve to the domestic cold water circuit. If using a closed calorifier, the non-return valve must be easilyaccessible.

4.10 Typical systems

9. Isolation valve17. Drain cock24. DHW tank heat exchanger primary inlet25. DHW tank heat exchanger primary outlet28. Domestic cold water inlet29. Pressure reducer - If the supply pressure exceeds 80% of the valve

or safety unit setting (e.g. 5.5 bars for a safety unit set at 7 bars), a pressure reducer must be installed upstream of the DHW tank

53. Type EA protection unit (stop valve + nonreturn valve)54. End of the discharge pipe free and visible 2 to 4 cm above the flow

funnel55. Domestic hot water diaphragm safety valve sealed and calibrated at

7 bar56. Bleed valve57. Domestic hot water outlet

5 Filling the system

A connecting part, a T-piece and an annealed copper pipe areprovided with the mounting frame.Cut the copper pipe to the correct length using a pipe cutter.

A Domestic cold water inletB to the safety control unit

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6 Electrical connection

The sensor must be connected before switching on theboiler.

Connect the domestic hot water sensor to the DHW sensor terminal(O.DHW:) on the control panel.Engage the NTC DHW sensor fully in the thimble tube.

Commissionning

1. Rinse the domestic circuit.

2. Fill the tank using the cold water inlet pipe.

3. Degas the installation.

To do so:- Fill it completely with water, leaving a hot water tap open. Only

reclose this valve when the flow is regular and there are no noisesor hammering in the pipes.

- Then successively degas all the hot water pipes by opening thecorresponding valves.

- Degas the tank exchanger circuit using the bleed valve providedfor this purpose

- Check the safety devices (particularly the valve or safety unit),referring to the instructions provided with these components

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Maintenance

1 Magnesium anode

The magnesium anodes must be checked at least every 2, years.After the first check, determine the frequency of future checks on thebasis of anode wear.The anodes can be checked by two methods:

Inspection

- the anode must be replaced if its diameter is less than 15 mm(original diameter = 33 mm).

Function test

- disconnect the earth wire from the anode.- measure the strength of the current between the tank and the

anode. if the current is less than 0.1 mA, the anode must bereplaced.

If the anodes must be replaced, proceed as described below.

2 Valve or safety unit

The valve or safety unit must be operated at least once a month inorder to ensure that it is operating correctly and to be forewarned ofany overpressure which would damage the DHW tank.

Failure to comply with this maintenance rule may causedeterioration of the DHW tank and the cancellation of theguarantee.

3 Descaling

In hard water regions, it is advisable to ask the fitter to descale theDHW tank exchanger once a year in order to maintain its level ofperformance.

4 Cladding

The cladding of the DHW tank can be cleaned with soapy water.

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Procedures to follow for descaling, or checking or replacing the magnesium anodes

1. Cut off the cold water supply and drain the DHW tank. To drainthough the safety unit, turn the unit to drain and turn on a hotwater tap (or a bleed valve) to allow air to enter.

2. Pull out the DHW sensor (A).

3. Remove the inspection trap (13 mm spanner) (B).

4. Check the anode and replace it if necessary (C).

5. Remove limescale deposits in the form of sludge or strips in thebottom of the tank. On the other hand, do not touch limescaleadhering to the walls of the tank as it provides effective protectionagainst corrosion and improves the insulation of the DHW tank.

6. Descale the exchanger in order to maintain its performancelevels.

7. Fit the unit together.

8. Replace the seal D and position it in the inspection opening,taking care to fit the lug pointing to the outside of the DHWcalorifer.

9. The sensor A coming from the boiler should be replaced in thethimble tube

The flange mounting bolts must not be excessively tight:6 Nm +1/-0Use a dynamometric spanner.

Approximately 6 Nm is obtained by manipulating the boxspanner with the small lever and 15 Nm by manipulating it withthe large lever.

10. After reassembly, check the watertightness of the lateral flange.

11. Switch on.

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Maintenance form

No. Date Checks made Comments By Signature

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

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Spare parts BMR 80

29/05/06 - 300008885-002-ATo order a spare part, quote the reference number next to the part required.

DE DIETRICH THERMIQUE S.A.S. - Spare parts centre4, rue d’Oberbronn - F-67110 REICHSHOFFEN - Tél. : (+33) 03 88 80 26 50 - Fax : (+33) 03 88 80 26 98

cpr dedietrichthermique.com

Rep Reference Description

1 100005562 Tank BMR 80 - Package EE 53

2 89535525 Complete buffer tank

3 89538509 Complete Anode diameter 33 - Length 180

4 89705511 Seal kit 7 mm + retainer ring 5 mm

5 95014035 Seal ø 25x8-5x2

6 94974525 Nylon brace 8 mm

7 200005664 Hanging rail

8 200005814 Fastening clamp

9 89538545 Screw bag

Sensor AD 226 (to be ordered separately)

10 95362448 KVT sensor 60 l. 5 m

11 85754909 2-pin connector for DHW sensor

Kit de liaison HG 29

15 300008669 Connecting pipe - Primary circuit

16 300008685 flexible Length 520 mm + 2 G3/4" elbows

17 95013070 Flat joint 24x18x1.5

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Warranty

You have just purchased one of our appliances and we thank you

for the trust you have placed in our products.

Please note that your appliance will provide good service for a

longer period of time if it is regularly checked and maintained.

Your fitter and our customer support network are at your disposal

at all times.

Warranty terms

Starting from the purchase date shown on the original fitter's

invoice, your appliance has a contractual guarantee against any

manufacturing defect.

The length of the guarantee is mentioned in the price catalogue.

The manufacturer is not liable for any improper use of the

appliance or failure to maintain or install the unit correctly (the

user shall take care to ensure that the system is installed by a

qualified fitter).

In particular, the manufacturer shall not be held responsible for

any damage, loss or injury caused by installations which do not

comply with the following:

- applicable local laws and regulations

- specific requirements relating to the installation, such as

national and/or local regulations

- the manufacturer's instructions, in particular those relating to

the regular maintenance of the unit

- the rules of the profession

The warranty is limited to the exchange or repair of such parts as

have been recognised to be faulty by our technical department

and does not cover labour, travel and carriage costs.

The warranty shall not apply to the replacement or repair of parts

damaged by normal wear and tear, negligence, repairs by

unqualified parties, faulty or insufficient monitoring and

maintenance, faulty power supply or the use of unsuitable fuel.

Sub-assemblies such as motors, pumps, electric valves etc. are

guaranteed only if they have never been dismantled.

France

The preceding dispositions are not exclusive of benefits for the

purchaser of the legal guarantee as stated in Civil Code articles

1641 to 1648.

Belgium

The preceding dispositions about the contractual guarantee are

not exclusive of profit if the need arises for the purchaser in

Belgium of the applicable legal dispositions on hidden defects.

Switzerland

The application of the warranty is subject to the terms and

conditions of sale, delivery and warranty of the company

marketing our products.

Other countries

The above provisions do not restrict the benefit of the legal laws

regarding hidden defects applicable in the buyer's country.

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Warranty certificate

Date of purchase: .............................................................................

Name and address of the purchaser: .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Tel.: ...................................................................................................

Information on the appliance (to be found on the rating plate):Model: ...............................................................................................Serial number: ..................................................................................

Retailer's stamp:

1929/05/06 -300008885-001-A BMR 80