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Sanyo
Air Conditioner
CH3642
Sanyo CH3642 User Manual
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3
SM830082
III - 2
3. Electrical data
TH1
TH2
TH3
3
1
2
1
2
1
2
1
TH4
3
1
2
1
DP
2P
(GRN)
3P
(WHT)
4
5
3
2
1
4
3
2
1
2
1
13
2
1
3
1
3
1
3
1
3
1
3
1
4
3
5
6
2
14
3
5
6
5
13
9
7
3
12
S
P
1
Power
Line
Control
Line
To Outdoor Unit
Terminal
Plate (5P)
Earth
Terminal
• Electric Wiring Diagram
W
854-2-5268-930-00-1 (X)
TR1
RC1
2
G
U1
U2
GRN/YEL
GRN/YEL
GRN/YEL
Earth
Terminal
Earth
Terminal
Earth
Terminal
Earth
Terminal
49FI
BLK
GRY
YEL
BLK
RED
BLK
BLU
BRN
PNK
RED
BRN
ORG
ORG
BRN
RED
WHT
WHT
WHT
GRY
GRY
ORG
PNK
BRN
LM
MOV
(BRN)
E3
Coil
(BLK)
E2
Coil
(RED)
E1
Coil
(YEL)
Temp
Room
(BLU)
WL
Controller (CR-TH2442)
(BLU)
DP
3
1
(RED)
26H
E
OC
(BLU)
RC
(BLU)
RS1
(BLK)
RS2
(WHT)
VCC
(WHT)
T20
(GRY)
PNL
(GRN)
FS
(RED)
LS
(WHT)
LM
(GRN)
FM
(WHT)
GRN/YEL
1
3
ORG
FS
BRN
BRN
LS
12
12
123
123
S
P
GRY
BLK
GRN/YEL
GRY
PNK
GRN/YEL
9P
(WHT)
123
45
678
9
1
S
S
2P (BLU)
P
23456789
YEL
ORG
VLT
WHT
GRY
GRY
PNK
BRN
BLK
GRY
FMI
BRN
PNK
(WHT)
T6
(YEL)
T10
BLK
BLK
BLK
BLK
BLK
BLK
BLK
BLK
ORG
RED
YEL
BLK
GRY
RED
RED
3-1
Indoor Units
4-Way Air Discharge Semi-concealed Type : XH2442, XH3642, XH4242
140
142
Table of Contents
Who Should Use this Manual
3
Service Manual
1
Technical Data
1
Please Read before Starting
2
Special Precautions
2
Table of Contents
3
Specifications
6
Unit Specifications
6
Unit Specifications
7
Major Component Specifications
16
(A) Indoor Units
16
A) Indoor Units
17
Major Component Specifications
17
(B) Outdoor Units
26
Other Component Specifications
29
Other Component Specifications
30
Way Air Discharge Semi-Concealed Type
42
Dimensional Data
43
A) Indoor Units
43
Ceiling Mounted Type
44
Concealed Duct Type
46
Wall-Mounted Type
49
B) Outdoor Units
52
Refrigerant Flow Diagram
53
Operating Range
54
Refrigerant Flow Diagram
54
Cooling Capacity
55
Cooling Capacity
56
Heating Capacity
75
Performance Charts
76
Operating Current
76
Operating Pressure
88
Noise Criterion Curves
96
Wall Mounted Type
97
Increasing the Fan Speed
99
Air Throw Distance Chart
100
Air Throw Distance Chart
101
Installation Instructions
103
Tubing Length
103
Selecting the Installation Site
104
Electrical Wiring
108
Wiring System Diagrams
109
Electrical Characteristics
111
2. Processes and Functions
121
Default Chapter
122
Room Temperature Control
122
(A)Cooling
122
Processes and Functions
123
(B)Heating
123
Cold Draft Prevention (Heating Cycle)
124
Automatic Fan Speed (Indoor Unit)
125
(A)Cooling
125
(B)Heating
125
Outdoor Fan Speed Control
126
(A)Cooling
126
(B)Heating
126
Freeze Prevention (Cooling)
127
Condensing Temperature Control (Cooling)
128
Overload Protection (Heating)
129
Discharge Temperature Control (Cooling and Heating)
130
Discharge Temperature Control (Cooling and Heating
130
Auto. Mode for Automatic Heating/Cooling Switching
131
Defrosting Control, Outdoor Heat Exchanger Coil (Heating)
133
Defrosting Control, Outdoor Heat Exchanger Coil (Heating
133
4-Way Valve, Solenoid Control
134
(A) Normal Control Mode
134
Automatic Restart after Power Interruption
135
(B) AUTO Control Mode
135
Compressor Discharge Gas Temperature
136
Electronic Refrigerant Control Valve
136
(A)Cooling
136
(B)Heating (Except During Defrosting
136
Compressor Current Detection Circuit
137
Electronic Refrigerant Control Valve Control
138
Voltage Detection Control
139
Electrical Data
140
Indoor Unit (Electric Wiring Diagram, Schematic Diagram)
140
Outdoor Unit (Electric Wiring Diagram, Schematic Diagram)
140
Indoor Units
141
Schematic Diagram
142
4. Service Procedures
157
Service Procedures
157
Troubleshooting
158
Check before and after Troubleshooting
159
General Troubleshooting Flow Chart: Diagnosis and Remedy
160
Meanings of Alarm Messages
162
LED Indication on the Outdoor Unit's P.C.B. Ass'y
164
Symptoms and Parts to Inspect
165
Procedures When a Specific Component Does Not Work
175
Checking the Electrical Components
186
Measurement of Insulation Resistance
186
Checking the Protective Devices
187
Checking the Electrical Parts
188
Thermistor Characteristic Curve
191
PCB Setting
192
Address Setting Method
193
Automatic Address Setting Method
194
Displaying Indoor / Outdoor Unit Combination Numbers
194
Items to Check Prior to Test Run
195
Test Run
196
Pcbs and Their Location
198
Checking Procedure for each PC Board
200
TMX60 Pins
201
5
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Sanyo CH3642 Specifications
General
Brand
Sanyo
Model
CH3642
Category
Air Conditioner
Language
English
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