Samsung HH105ECM, HH175ECM, HH140ECM, UH105GCM, UH140GCM Service Manual

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DUCT TYPE AIR CONDITIONER

INDOOR UNIT

HH105ECM HH140ECM HH175ECM

SERVICE

OUTDOOR UNIT

UH105GCM UH140GCM UH175GCM

Manual

CONTENTSAIR CONDITIONER

1. Product Specifications

2. Installation

3. Refrigerating Cycle Diagram

4. T roubleshooting

5. Exploded Views and Parts List

6. PCB Diagram

7. Wiring Diagram

8. Schematic Diagram

1. Product Specifications

1-1 Table

MODEL

Capacity

Power Supply

Power Input

Running Current

Indoor Unit

Outdoor Unit

INDOOR UNIT

OUTDOOR UNIT

Cooling

Heating

Cooling Heating Cooling Heating

H.H

Fan Speed (at 0mmAq)

Air Circulation (at 14mmAq)

Noise Level (Sound Pressure)

Heat Exchanger

Fan

Dimensions

Weight

Fan Speed

Air Circulation (Hi) Sound Pressure Level

Fan

Compressor

Hi Med Low

H.H

Hi Med Low

Row x Stages x Fin Pitch

Motor Output

Hi Low

Motor Output

HH105ECM

UH105GCM

BTU/h

kW kW

A r.p.m r.p.m r.p.m r.p.m

/min

m3/min

/min dB(A) dB(A) dB(A)

Type

Model

mm mm mm

Net / Gross

r.p.m. r.p.m.

/min dB(A)

34,000 10,000 38,200 11,200

3.9

6.8

1,000

860 760 660

35 29 23 20 48 47 46

390

1,110

650

66 / 77

980 480

114

ZR47KCE-TFD

HH140ECM UH140GCM

47,800 14,000 54,600 16,000

3ø, 380-415V~, 50Hz

5.10

5.65

9.1

9.8 1,050 1,000

950 900

36 34 32 30 49 48 47

Wave fin coil

3 x 14 x 1.7(900mm)

Sirocco

211 390

1,110

650

66 / 77

980 480

90 65

Propeller

114

Scroll

ZR61KCE-TFD

HH175ECM UH175GCM

56,300 16,500 64,800 19,000

6.9

12.2

1,000

900 800 700

45 39 33 30 51 49 48

390

1,400

650

75 / 88

930 450

90 67

114

ZR81KCE-TFD

1Samsung Electronics

Table(cont.)

MODEL

Compressor

Outdoor Unit

Heat Exchanger

Refrigerant

Dimensions

Condition

Piping

Notice : This model is tested under the external static pressure of 14mmAq.

Weight

Indoor Unit

Outdoor Unit

Pipe O.D. Size Connection Method

Between

INDOOR UNIT

OUTDOOR UNIT

Capacity

Protection

Type

Row x Stages x Fin Pitch

Face Area

Control

(R407C)Charge

(H x W x D)

kg Cool(DB/WB) Heat(DB/WB) Cool(DB/WB) Heat(DB/WB)

Liquid

Gas

Height

Pipe Length

Net / Gross

˚C ˚C ˚C

˚C mm(inch) mm(inch)

m m

HH105ECM UH105GCM

2 x 36 x 1.7(840 / 806)

968 x 880 x 320

11.7

0.756

2,800

85 / 90

HH140ECM UH140GCM

18.1

Internal

Wave fin coil

2 x 44 x 1.7(911)

1.022

Electrical expansion valve

3,800

1,135 x 930 x 375

105 / 115

27 / 19 20 / 15 35 / 24

7 / 6

9.52(3/8")

19.05(3/4") Flare

Max. 30 Max. 50

HH175ECM UH175GCM

19.7

2 x 48 x 1.7(935 / 915)

1.122

3,850

1,270 x 930 x 385

136 / 146

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1-2 Dimensions

1-2-1 Indoor Unit

■ HH105ECM/HH140ECM

(Unit : mm)

Number

1 2 3 4 5 6 7 8

Name

Liquid pipe connection Gas pipe connection Drain pipe connection Drain pipe connection Power supply connection Air discharge flange Air suction flange Hook

Description

ø9.52 Flare ø19.05 Flare OD27.2 ID21.6 (without drain pump) OD29 ID25 (with drain pump)

For M8~M10

3Samsung Electronics

Product Specifications

■ HH175ECM

(Unit : mm)

Number

1 2 3 4 5 6 7 8

Name

Liquid pipe connection Gas pipe connection Drain pipe connection Drain pipe connection Power supply connection Air discharge flange Air suction flange Hook

Description

ø9.52 Flare ø19.05 Flare OD27.2 ID21.6 (without drain pump) OD29 ID25 (with drain pump)

For M8~M10

Samsung Electronics4

1-2-2 Outdoor Unit

880

968

320

930

1,135

375

■ UH105GCM

Product Specifications

(Unit : mm)

■ UH140GCM

(Unit : mm)

5Samsung Electronics

Product Specifications

930

1,270

385

■ UH175GCM

(Unit : mm)

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2. Installation

2-1 Assigning Address to Indoor Unit

1. Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan.

2. The address of the indoor unit is assigned by adjusting MAIN(SW02) and RMC(SW01) rotary switches.

K1 K2 K3 K4

SW03

K5 K6 K7 K8

SW04

K10

K11

K12

SW05

SW02 MAIN SW01 RMC

3. The MAIN address is for communication between the indoor unit and the outdoor unit. Therefore, you must set it to operate the air conditioner properly.

4. It is required to set the RMC address if you install the wired remote controller and/or the centralized controller.

5. If you install optional accessories such as the wired remote controller, centralized controller, etc. see an appropriate

installation manual.

6. If an optional accessory is not installed, you do not have to set the RMC address. However, adjust K1 and K2 switches of

the SW03 DIP switch to "ON" position in this case.

7. Set the MAIN address by adjusting the rotary switch(SW02) from 0 to F. Each indoor unit connected to the same outdoor

unit must have different address.

i. e. If an indoor unit does not have an optional accessory and its

MAIN address is "4".

K1 K2 K3 K4

K5 K6 K7 K8

K10

K11

K12

SW03

SW04

SW05

SW02 MAIN

SW01 RMC

7Samsung Electronics

2-2 Additional Functions

K5 K6 K7 K8

■ Compensation for lost temperature in heating operation

■

• Reduces the difference between an actual room temperature and a sensed

■

• temperature by the air conditioner when heating.

Switch No. Switch ON Switch OFF

K5 2°C compensation 5°C compensation

■ Adjusting filter cleaning cycle

■

• You can adjust the cycle for filter sign indicator.

Switch No. Switch ON Switch OFF

K6 1000 hours 2000 hours

■ Hot water heater

■

• You must adjust the K7 when you install the hot water heater.

SW04

Switch No. Switch ON Switch OFF

K7 No use of hot water heater Use of hot water heater

SW04

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2-3 Setting Up Option Switches

■ Option Switch

Display

Key

■ Rotary Switch

■

You should display that how many indoor units are connected to the outdoor unit. Refer to the table below, then turn the arrow to appropriate position.

Rotary Switch

Switch No.

0 or 1

2 3 4 5 6 7 8

Number of

indoor unit(s)

One Two

Three

Four Five

Six

Seven

Eight

Switch No.

9 A B C D E F

Number of

indoor unit(s)

Nine

Ten Eleven Twelve

Thirteen

Fourteen

Fifteen

■ KEY ■ Display

K1 K2 K3 K4

RESETCHECK MODE DISPLAY

MODE

DIS 1

SEG 1 SEG 2 SEG 3 SEG 4

DIS 2

9Samsung Electronics

Installation

■ Summary of KEY functions

Number of press times

✳ Use the K1 only for heat pump models.

Function

(Displayed on SEG 3, 4)

Adding refrigerant at

heating mode

Test operation at

heating mode

End

■ Reading data indicated on the display

KEY

Number of

press

1 2 3

Adding refrigerant for heat pump models Test operation for heat pump models End

(Displayed on SEG 3, 4)

Adding refrigerant at

cooling mode

Test operation at

cooling mode

Pump Down for recovery

of refrigerant

End

Item

(Displayed on SEG 3, 4)

Reset

Display Meaning

(Displayed on SEG 3, 4)

Displays data

Example

1 2 3 4

2 3(1) 4(2) 5(3)

6(4)

7(5)

8(6)

Adding refrigerant for cooling only models Test operation for cooling only models Pump Down for recovery of refrigerant End Reset

Discharge temperature of compressor Temperature of outdoor heat exchanger Outdoor temperature Step of electronic expansion valve

(0 step : all closed, 480 step : all open)

Temperature of evaporator

Indoor temperature

110 °C

38 °C 34 °C

120STEP

(12 x 10)

-2 °C

12 °C 22 °C

10(7)

✳ ( ) is adjusted to HH105ECM/HH140ECM models.

Stopping view mode & display communication data

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3. Refrigerating Cycle Diagram

Liquid Side

*Allowable pipe length : Max. 50m *Allowable drop distance : Max. 30m

Gas Side

INDOOR UNIT OUTDOOR UNIT

Heat Exchanger (Evaporator)

Heat Exchanger (Condensor)

Muffler

Compressor

High pressure switch

Accumulator

Cooling Heating Gas leak check point

3-Way Valve

Drier

Filter

EEV

3-Way Valve

11Samsung Electronics

4. Troubleshooting

■ Detection of errors

● If an error occurs during the operation, an LED flickers and the operation is stopped except the LED.

● If you re-operate the air conditioner, it operates normally at first, then detect an error again.

4-1 LED Display on the receiver & display unit

■ LED Display

Indicators

Concealed Type

Abnormal conditions

Power reset

Error of temperature sensor in indoor unit (OPEN/SHORT)

Error of heat exchanger sensor in indoor unit(OPEN/SHORT)

Error of outdoor temperature sensor Error of COND sensor Error of DISCHARGE sensor (OPEN/SHORT)

1. No communication for 2 minutes between indoor unit and outdoor unit (communication error for more than 2 minutes)

2. Indoor unit receiving the communication error from outdoor unit

3. Outdoor unit tracking 3 minute error

4. When sending the communication error from outdoor unit the mismatching of the communication numbers and installed numbers after completion of tracking. (communication error for more than 2 minutes)

Blue

Red

Standard Type

Operating

Displayed on appropriate indoor unit which is operating

Displayed on appropriate indoor unit which is operating Displayed on outdoor unit

1. Error of indoor unit: Displayed on the indoor unit regardless of operation

2. Error of outdoor unit: Displayed on the indoor unit which is operating

1. Communication error between indoors (Communication error for more than

2 minutes)

2. Slave of indoor unit tracking error

If you turn off the air conditioner when the LED is flickering, the LED is also turned off. : On : Flickering : Off

If you re-operate the air conditioner, it operates normally at first, then detect an error again.

Error of indoor unit: Displayed on the indoor unit regardless of operation

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■ LED Display(cont.)

Troubleshooting

Indicators

Concealed Type

Abnormal conditions

Blue

Red

Operating

Standard Type

1. 2nd detection of high temperature COND

2. 2nd detection of high temperature DISCHARGE

Displayed on appropriate indoor unit which is operating Displayed on outdoor unit

3. Error of reverse phase

Error of float switch

Error of setting option switches for optional accessories

EEPROM error

EEPROM option error

If you turn off the air conditioner when the LED is flickering, the LED is also turned off. : On : Flickering : Off

If you re-operate the air conditioner, it operates normally at first, then detect an error again.

13Samsung Electronics

4-2 Outdoor Unit

If an error occurs during the operation, it is displayed on the outdoor unit PCB.

Display

Explanation

High temperature of Discharge (Protection control)

High temperature of outdoor heat exchanger (Protection control)

COMP DOWN to protect being frozen

Error of momentary power failure (disappears when the unit is Off/On)

Error of OUT TEMP sensor (OPEN/SHORT)

Error of temperature sensor in outdoor heat exchanger (OPEN/SHORT)

Error of Discharge TEMP sensor (OPEN/SHORT)

System Down caused by communication error after completion of tracking

Mismatching of the indoor unit numbers set with those communicated after completion of tracking

Error of float switch in indoor unit

Error of setting option switches for optional accessories

Remark

Error about protection control of outdoor unit

Errors about outdoor unit sensor (OPEN/SHORT) Detection during the operation of indoor unit (Sensing and sending errors into the communication data)

Communication and indoor unit errors

Self-diagnosis of indoor and outdoor unit (x:indoor unit address)

Flicker

K1, K2, K3, K4, K5 Flicker

The order of priority : E1 → E2 → E4 → E5 → P0 → P1 → P5 → P6 → t1 → t2 → t3 → tu → to → G4 → G5 → E3 → qx → rx → vx →

The order of priority : - In case that the same error displays from multi-indoor units, the one having the faster address has the priority.

OPEN/SHORT error of room sensor in indoor unit

OPEN/SHORT error of eva in sensor in indoor unit

EEPROM option error

Error of fan starting

Open error of electronic expansion valve in outdoor unit (Detected once or more times)

Close error of electronic expansion valve in outdoor unit (Detected once or more times)

Below -5°C when cooling (Outdoor temperature)

Over 30°C when heating (Outdoor temperature)

K1, K2, K3, K4, K5

Displays of operating status

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+ 35 hidden pages

Samsung HH105ECM, HH175ECM, HH140ECM, UH105GCM, UH140GCM Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual