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Sanyo
Air Conditioner
CH3642
Sanyo CH3642 User Manual
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SM830082
1
2
3
4
5
1. Specifications
1-5
Refrigerant Flow Diagram
Outdoor Unit: CH2442
Indoor Unit: 24 Type
HP
High
pressure
switch
Compressor
Accumulator
Accumulator
EC
P
Heat exchanger
4-way valve
EC
P
Heat exchanger
Distributor
Electronic
ref.control
valve
Strainer
Liquid line
nipple
Liquid line
service
valve
O.D.
1/4"
(6.35mm)
O.D.
3/4"
(19.05mm)
Gas line
nipple
Gas line
service
valve
Distributor
Sub-heat exchanger
Cooling Cycle
Heating Cycle
Strainer
M
2180_THS_I
Outdoor Unit: CH3642
Indoor Unit: 36 Type
HP
High
pressure
switch
Compressor
Accumulator
Accumulator
EC
P
Heat exchanger
4-way valve
EC
P
Heat exchanger
Distributor
Electronic
ref.control
valve
Strainer
Liquid line
nipple
Liquid line
service
valve
O.D.
3/8"
(9.52mm)
O.D.
3/4"
(19.05mm)
Gas line
nipple
Gas line
service
valve
Distributor
Sub-heat exchanger
Cooling Cycle
Heating Cycle
Strainer
M
1398_THS_I
Muffler
52
54
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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