trouble shooting (control part). error explanation. cautions. solution map. communication wiring....

TROUBLE SHOOTING (Control Part)

. Error Explanation

. Cautions . Solution MAP . Communication wiring . DVMPLUS2 I/F . Indoor Power line wiring


1. Error Display 1) The Meaning of the First Alphabet

E P U A

Error concluded by self-diagnosis

E101~E700Detailed item refers to error code

Pre Error Code

P701~P800 Items that need more than 2 times detection to result in error

The address of Outdoor Unit in which error occurred U200 : Main UnitU201 : Sub1 UnitU202 : Sub2 UnitU203 : Sub3 Unit

The address of Indoor Unit in which error occurred A047 : Error Occurred At Indoor Unit Whose address 47

2) Error Display sequence

Error Type Error Display Sequence Examples

Error Occurred in the Indoor UnitError Number →Address of Indoor unit → Error Number(display repeatly)

E471→A002→E471→A002

Error Occurred in the Outdoor Unit or Other Error

Error Number →Address of Outdoor unit → Error Number(display repeatly)

E471→U200→E471→U200

In case several errors occurred at the same time, seven segment on the outdoor PBA displays only one error whose priority is higher. ( Refer to the errorr code table about priority order )

When the same error occurred in several indoor units, seven segment displays one main address of indoor unit whose address number is lowest.


Error Code ( Priority Order )

Error Details

E221 Short or Open of the Outdoor air temperature sensor

E251 Short or Open of the discharge temperature sensor of Digital compressor

E256 Short or Open of the discharge temperature sensor of Fixed compressor 1



E291 Short or Open of the high pressure sensor

E296 Short or Open of the low pressure sensor

E271 Short or Open of the Sump. Temperature sensor of the compressor 1

E231 Short or Open of the Cond. out temperature Sensor

E307 Short or Open of the Oil balance temperature Sensor1

E308 Short or Open of the Suction temperature sensor

E311 Short or Open of the sub cooler temperature sensor

E425 Power Reverse Phase or Phase Open

E452 Momentary power failure

E440 Stop Operating Heating mode when Outdoor temperature is over 30

E442 Stop Operating Heating charging mode when Outdoor temperature is over 15

E443 Stop Operation by Low Pressure

E431 Self diagnosis failure of Oil balance valve 1

E202 No response error after tracking is completed

E201Communication error among outdoor units and indoor units

(Pre-tracking failure or setup indoor unit number is different from the real)



Error Details

E203 Communication error between Outdoor unit’s main and sub MICOM or among outdoor Units

E407 Comp down By high pressure

E410 Comp down By low pressure

E403 Comp down By Anti-freezing control

E413 Comp down By Sump Protection Control

E554 Loading failure

E416 Comp down by compressor discharge temperature

E241 Cond. out temperature Sensor breakaway

E269 Suction temperature Sensor breakaway

E453 Error of Fan Motor’s high temperature

E454 Fan motor RPM Error

E455 Error of fan motor IPM high temperature

E458 CT over current

E457 Error of fan motor’s reverse revolution

E162 Outdoor Unit’s EEPROM Error

E560 Switch Option Set up Error

E428 Comp down by compression ratio control

E121 Short or Open of indoor unit’s air temperature sensor

E122 Indoor Unit EVA in Sensor’s Short or open

E123 Indoor Unit EVA out Sensor’s Short or open



Error Details

E154 Indoor Unit’s Fan starting Fail Error

E124 Communication error message sent from the indoor unit

E153 Indoor Unit Floating S/W error (2nd check)

P701 Indoor Unit Floating S/W error (1st check)

E152 Indoor Unit EEV Closing error (2nd check)

P702 Indoor Unit EEV Closing error (1st check)

E151 Indoor Unit EEV opening error (2nd check)

P703 Indoor Unit EEV opening error (1st check)

E128 Indoor Unit EVA in Sensor Breakaway

E129 Indoor Unit EVA Out Sensor Breakaway

E131 Indoor Unit Heater Sensor Breakaway

E265 Sump temperature Sensor of Digital Comp. or Fixed Comp.1 Breakaway

E267 Fixed Comp.2 Sump’s Temperature Sensor Breakaway

E268 Fixed Comp.3 Sump’s Temperature Sensor Breakaway

E262 Fixed Comp.1 Discharge’s Temperature Sensor Breakaway



E456 Fan Motor Over Current Error

E461 CT Low Current

CH Stop Operating the unit when the crank case heater is on


Operation flow ofOutdoor unit

E201

E425


2. Initial tracking(communicaton check) – E201 indicated if abnormal

1) When the power is on, the micom of outdoor unit check the indoor units, and transmitters Installed in the same system, which is called as tracking.

2) The left 2 sides of displays shows the address of indoor unit which the outdoor unit is trying to communicate.(0,1,2,~,47)

3) The right 2 sides of displays shows the address of indoor unit which the outdoor unit succeed in communicating.

4) Using outdoor 2 rotary switches to check the numbers of indoor unit connected with outdoor unit

5) If the total numbers of indoor unit don't match with the outdoor switches setting, the 4 segments display E201..

Main unit displays indoor unit main address in sequence from 0 to 47 Sub unit displays only outdoor unit address connected to each other like C9,CA,CB,CC,CD,CE,DF


2. Reverse phase/missing phase detection - E425 indicated if abnormal

6) Letters on the 7 segment display means as the follows.

items Address (hexa)

Outdoor Main unit Main(C8H)/Sub(CCH)

Outdoor Sub unit1 Main(C9H)/Sub(CDH)

Outdoor Sub unit2 Main(CAH)/Sub(CEH)

Outdoor Sub unit3 Main(CBH)/Sub(CFH)

Indoor 0 ~ 47

Interface Module D0H

3. Compressor preheating – Ch displays

( DISCHARGE ≤ COND_Out + 2 ) and ( out air temp) ≤ 30 , for 2 minutes -> CCH ON for 2 and half hours only at first.

( DISCHARGE > COND_Out + 5 ) and ( out air temp) ≥ 32 , for 2 minutes -> CCH OFF


E201: E201 Communication error in tracking indoor

Judgement Method Check by comparing set values of installed numbers of indoor units on outdoor unitPCB with actual installed numbers.

Possible Cause Communication error between indoor unit and outdoor unit, and switch setting error for installed numbers.

E202: E202 Communication error after completion of tracking

Judgement Method In case that the communication is not achieved for 2 minutes during operation between indoor and outdoor unit.

Possible Cause Communication error between indoor unit and outdoor unit, and switch setting error for installed numbers.

E203: E203 -> 200~203 Communication error between outdoors


Possible Cause - communication wire short or open-disorder of communication chip, fail of pcb power pcb


E425: E425 Reverse phase detection of 3 phase power

Judgement Method - check the 3phase detection part power of outdoor unit PCB- check the color of red, white and black of the cabel for 3 phase detection part connectors.- The error is automatically reset when the phase voltage is restored in order.

Possible Cause One of the 2 phase voltages or all of them are not comingIncorrect connection of 3 phase power

E452: E452 Momentary power failure


Possible Cause Protection control of compressor, not defect

E162: E425 EEPROM error

Judgement Method - micom of indoor unit fail in communicating with the eeprom

Possible Cause Eeprom is in defect


Error Code Sensor Open/Short Error Sensor type

E221 Short or Open of the Outdoor air temperature sensor 103 AT

E251Short or Open of the discharge temperature sensor of Digital compressor

204 CTB

E256Short or Open of the discharge temperature sensor of Fixed compressor 1

204 CTB


204 CTB


204 CTB

E231 Short or Open of the Cond. out temperature Sensor 103 AT

E307 Short or Open of the Oil balance temperature Sensor1 204 CTB

E308 Short or Open of the Suction temperature sensor 103 AT

E311 Short or Open of the sub cooler temperature sensor 103 AT

E121 Short or Open of indoor unit’s air temperature sensor 103 AT

E122 Indoor Unit EVA in Sensor’s Short or open 103 AT

E123 Indoor Unit EVA out Sensor’s Short or open 103 AT

SENSOR OPEN/SHORT ERROR


Judgement Method 1. Is the connector of temperature sensor departed from PCB?2. Separate the connector from PCB and measure the resistance across both terminals.3. Is the resistance greatly out of that of the each table, 103AT, 204CTB?4. Replace sensor or PCB, measure again, and operate again.

Possible Cause Wire open or current leak of related sensor

SENSOR OPEN/SHORT ERROR

Temperature[] Resistance[kΩ]

70 2.2

60 3.0

50 4.2

40 5.8

30 8.3

20 12.1

10 18.0

0 27.3

-10 43

Temperature[] Resistance[kΩ]

130 2.6

120 3.4

100 5.8

80 10.8

60 21

25 86

20 107

10 171

0 280

-10 475

103 AT 204 CTB


INDOORERRORLEDDISPLAY Status


Cautions in Solution Map

Model Name

Wired R/C Interface Module

CentralizedController

Function Controller

DMS Key-Tag On/Off

LonWorkInterface Module

Power

DistributorCOM1 COM2

Restriction

MWR-TH00

MWR-TH00 MIM-B00 in sterilization

DVM - MWR-TH00 [MIM-B00]MIM-B04MIM-B04A

MCM-A200MCM-A201MCM-A202

MCM-A100 MIM-D00 MIM-B02 MIM-B07 MCM-B102

HR - MWR-TH00 MIM-B04MIM-B04A


MCM-A100 MIM-D00 MIM-B02 MIM-B07 MCM-B102

FJM - MWR-TH00MWR-WS00

('06.02)

MIM-B04MIM-B04A('06.02)


MCM-A100 MIM-D00 - - -

DVM+II *MWR-TH00

MWR-TH00 MIM-B13('06.02)

MCM-A202('06.02)

MCM-A100 MIM-D00('06.02)

Not applicableto the DVM+II indoor units

MIM-B07 MCM-B102('06.02)

BAC COM1 COM2 [MIM-B00]MIM-B04MIM-B04A


MCM-A100 MIM-D00 Not applicableto the BAC indoor units

MIM-B07('06.03)

-

* Blue to be released , * Red to be sterilized* MWR-WS00 : 7-day schedule function included. * MWR-WH00 : daily schedule function. Will be released on '06.04* When using the DMS, MCM-A202 and MIM-B13 or MIM-B04A must be used* MIM-B07 will be provided by R&D till '06.03. Order may be placed starting from '06.03.* The power meter must be purchased from Korea separately. (Not provided by Samsung HQ)　MWR-WS00 is not compatible with the DVM, HR and FJM models at this time. (Compatibility date will be announced later on)MWR-WS00 is not compatible with the BAC models at this time. (Compatibility date will be announced later on)　* Remote controller model for BAC will be listed by model separately


Cautions in RS-485 Communication wiring


DVMPLUS2 Interface Module


Cautions in Indoor power line wiring

(.

) [ ]k

nk k

k

coef L i

AV

1

35 6

100020

< Instrallation condition > total wire Length = 100[m], total input current i = 10[A], each indoor current 1[A], total indoor number 10[EA]

, Coef = 1.55



0 10 20 30 40

0

50

100

150

current

dis

tan

ce

10 20 30 40

50

100

150

current

dis

tan

ce

10 20 30 40

50

100

150

current

dis

tan

ce

2[mm2]

5.5[mm2]

3.5[mm2]

[mm2] 2 wires 3 wires

2 25 21

3.5 35 29

5.5 45 37


Schmatic Diagram of DVMPLUS2

MAIN1 MAIN2 POWER

trouble shooting (control part). error explanation. cautions. solution map. communication wiring....

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