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

Error Display Sequence    1) The Meaning of the First Alphabet E P U A Error concluded by self-diagnosis E101~E700 Detailed 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 Unit U201 : Sub1 Unit U202 : Sub2 Unit U203 : 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 Unit Error 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 E257 Short or Open of the discharge temperature sensor of Fixed compressor 2 E258 Short or Open of the discharge temperature sensor of Fixed compressor 3 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 E201 Communication error among outdoor units and indoor units (Pre-tracking failure or setup indoor unit number is different from the real)

Error Code ( Priority Order ) 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 Code ( Priority Order ) 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 E263 Fixed Comp.2 Discharge’s Temperature Sensor Breakaway E264 Fixed Comp.3 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 of Outdoor 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

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 2. Reverse phase/missing phase detection - E425 indicated if abnormal 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: E202: E203: E201 Communication error in tracking indoor Judgement Method Check by comparing set values of installed numbers of indoor units on outdoor unit PCB 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 Judgement Method In case that the communication is not achieved for 2 minutes during operation between indoor and outdoor unit. Possible Cause communication wire short or open disorder of communication chip, fail of pcb power pcb

E425: E452: E162: 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 coming Incorrect connection of 3 phase power E452: E452 Momentary power failure Judgement Method In case that the communication is not achieved for 2 minutes during operation between indoor and outdoor unit. 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

Sensor Open/Short Error Error Code Sensor Open/Short Error Sensor type E221 Short or Open of the Outdoor air temperature sensor 103 AT E251 Short or Open of the discharge temperature sensor of Digital compressor 204 CTB E256 Fixed compressor 1 E257 Fixed compressor 2 E258 Fixed compressor 3 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 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

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 103 AT 204 CTB Temperature[℃] Resistance[kΩ] 70 2.2 60 3.0 50 4.2 40 5.8 30 8.3 20 12.1 10 18.0 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 10 171 280 -10 475

INDOOR ERROR LED DISPLAY Status

INDOOR ERROR LED DISPLAY Status

Centralized Controller LonWork Interface Module Cautions in Solution Map Model Name Wired R/C Interface Module Centralized Controller Function Controller DMS Key-Tag On/Off LonWork Interface Module Power Distributor COM1 COM2 Restriction MWR-TH00 MIM-B00 in sterilization DVM - [MIM-B00] MIM-B04 MIM-B04A MCM-A200 MCM-A201 MCM-A202 MCM-A100 MIM-D00 MIM-B02 MIM-B07 MCM-B102 HR MIM-B04 MIM-B04A FJM MWR-TH00 MWR-WS00 ('06.02) MIM-B04 MIM-B04A ('06.02) DVM+II *MWR-TH00 MIM-B13 ('06.02) MCM-A202 ('06.02) MIM-D00 ('06.02) Not applicable to the DVM+II indoor units MCM-B102 ('06.02) BAC Not applicable to 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 , Coef = 1.55 < Instrallation condition >  total wire Length = 100[m], total input current i = 10[A], each indoor current 1[A],  total indoor number 10[EA]

Cautions in Indoor power line wiring

Cautions in Indoor power line wiring

Cautions in Indoor power line wiring 2[mm2] 3.5[mm2] [mm2] 2 wires 3 wires 2 25 21 3.5 35 29 5.5 45 37 5.5[mm2]

Schmatic Diagram of DVMPLUS2