Samsung UD26B1C2, UD18B1C2, AD18B1C09, AD26B1C13 service manual Refrigerating Cycle Block Diagram

Page 32

5. Refrigerating Cycle Block Diagram

INDOOR UNIT

OUTDOOR UNIT

 

2Way valve

T1

Check valve

 

(A)

Cross fan

(B)

Liquid side

Capillary tube

Capillary tube

Cross fan

Heat exchanger (Condenser)

Heat

 

Gas side

 

 

exchanger

 

Compressor-B

(Evaporator)

T2

Compressor-A

3Way valve

4Way valve

Propeller fan

Refrigerating cycle temperature and pressure

 

 

STD Pressure

Piping Temp.(°F)

 

 

Temp.

Condition (°F)

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Condition

(psi)

T1

T2

 

Indoor

 

Outdoor

 

 

 

 

 

 

 

 

 

 

 

 

 

3-WAY V/V

DB

 

WB

 

DB

 

WB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard

57-71

50-54

50-54

80

 

67

 

95

 

75

 

 

 

 

 

 

 

 

 

 

 

 

Cooling

Max over load

-

61-64

61-64

80

 

67

 

115

 

75

 

 

 

 

 

 

 

 

 

 

 

 

 

Low temp.

-

34-39

34-39

67

 

57

 

67

 

57

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard

242-284

90-97

140-158

70

 

60

 

47

 

43

 

 

 

 

 

 

 

 

 

 

 

 

Heating

Max over load

-

97-104

149-167

80

 

-

 

75

 

65

 

 

 

 

 

 

 

 

 

 

 

 

 

Deice

-

82-90

104-113

70

 

60

 

35

 

33

 

 

 

 

 

 

 

 

 

 

 

 

31

Image 32
Contents Room AIR Conditioner Installation Refrigerant Refill ProcedurePump down Procedure Disassembly and Reassembly Indoor UnitDo 1above Outdoor Unit Troubleshooting Items to be checked firstDisplay Self Diagnosis Standard Checking and Testing Operations Outdoor Unit Outdoor UnitIf the lamp is not flickering, check as follows Display Explanation Remark Fault Diagnosis by Symptom No Power completely dead-Initial diagnosisWhen the power voltage is not available Indoor unit on whenNo Power Outdoor unit Is the display of PCB shownWhen the fan of indoor unit does not operate When the outdoor unit fan does not operate Is operating lamp blinking? LCD display status of Remocon normal? When the 4 way valve A,B is not operating When the compressor does not operate Normal comp a B off Keep Comp a B offSet up the Model option Method for Setting up the model option with remoconCase of ex -1700b7 Table of the option code Memo Exploded Views and Parts List Parts List 1 UD26B1C2 UD26B1C2 2 UD18B1C2 ’TY Description Specification Remark ASS’Y Control in DB93-01223ARefrigerating Cycle Block Diagram Indoor Unit Outdoor Unit Schematic Diagrams Outdoor Unit Electronics
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