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

2. 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.

3. 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)

4. 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

5. 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

6. Operation flow of
Outdoor unit
E201
E425

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. INDOOR
ERROR
LED
DISPLAY
Status

14. INDOOR
ERROR
LED
DISPLAY
Status

15. 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 ' 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

16. Cautions in RS-485 Communication wiring

17. DVMPLUS2 Interface Module

18. 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]

19. Cautions in Indoor power line wiring

20. Cautions in Indoor power line wiring

21. 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]

22. Schmatic Diagram of DVMPLUS2