Sharp R-426H Service Manual Page 105
- Page / 194
- Table of contents
- BOOKMARKS
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2. Processes and functions
1
2
3
4
5
II - 1
SM830080
2. PROCESSES AND FUNCTIONS
2-1 Room Temperature Control ......................................................................II - 2
(A) Cooling ................................................................................................II - 2
(B) Heating ................................................................................................II - 3
2-2 Cold Draft Prevention (Heating Cycle)......................................................II - 4
2-3 Automatic Fan Speed (Indoor Unit) ..........................................................II - 5
(A) Cooling ................................................................................................II - 5
(B) Heating ................................................................................................II - 5
2-4 Outdoor Fan Speed Control......................................................................II - 6
(A) Cooling ................................................................................................II - 6
(B) Heating ................................................................................................II - 6
2-5 Freeze Prevention (Cooling) .....................................................................II - 7
2-6 Condensing Temperature Control (Cooling) .............................................II - 8
2-7 Overload Protection (Heating) ..................................................................II - 9
2-8 Discharge Temperature Control (Cooling and Heating) ...........................II - 10
2-9 Auto. Mode for Automatic Heating/Cooling Switching ..............................II - 11
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating) ....................II - 12
2-11 4-Way Valve, Solenoid Control .................................................................II - 13
(A) Normal Control Mode ..........................................................................II - 13
(B) AUTO Control Mode ............................................................................II - 14
2-12 Automatic Restart after Power Interruption...............................................II - 14
2-13 Electronic Expansion Control Valve..........................................................II - 15
2-14 Compressor Discharge Gas Temperature ................................................II - 15
(A) Cooling ................................................................................................II - 15
(B) Heating (Except During Defrosting).....................................................II - 15
2-15 Compressor Current Detection Circuit ......................................................II - 16
2-16 Dehumidifying Operation ..........................................................................II - 17
2-17 Auto-flap Control .......................................................................................II - 18
2-18 Controlled by Electronic Expansion Valve ................................................II - 19
2-19 Voltage Detection Control .........................................................................II - 20
- TECHNICAL DATA 1
- SERVICE MANUAL 1
- Important 2
- WHO SHOULD USE THIS MANUAL 3
- TABLE OF CONTENTS 3
- Read Me First! 5
- 1-1 Unit Specifications 10
- 1-1Unit Specifications 30
- (B) Outdoor Unit 40
- Ceiling Mounted Type 47
- Concealed Duct Type 48
- Outdoor Unit 49
- 1-4 Dimensional Data 53
- 1-5 Refrigerant Flow Diagram 61
- 1-6 Operating Range 64
- 1-7 Cooling Capacity 65
- ● Heating Capacity 77
- 1-8 Noise Criterion Curves 78
- External Static Pressure 82
- Limit line 82
- 1-10 Air throw Distance Chart 83
- Tubing Length 85
- 0426_C_I 88
- 3 - ø40 hole 89
- 6 - ø6 hole 89
- 3 - ø60 hole 89
- 8 - ø6 hole 89
- Electrical Wiring 90
- 0511_M_I 91
- ■ Electrical Characteristics 93
- 1. Specifications 100
- Electrical Characteristics 100
- SM830080 105
- 2-1 Room Temperature Control 106
- SET SPEED 107
- 0673_X_S 108
- Chart Explanations and notes 109
- 2-4 Outdoor Fan Speed Control 110
- 2. Processes and functions 112
- 1566_M_S 114
- Fig. 14 116
- Fig. 13 116
- 0443_M_S 117
- (B) AUTO Control Mode 118
- (A) Cooling 119
- 0447_M_S 120
- 2-16 Dehumidifying Operation 121
- Auto-flap Control 122
- Ceiling-Mounted Type) 122
- 0451_M_S 123
- • Electric Wiring Diagram 126
- • Schematic Diagram 127
- This section explains: 139
- 0500_M_I 140
- 0499_M_I 141
- 0458_M_I 142
- 4. Service procedures 143
- (B) Heating 143
- 0654_C_I 146
- 1903_M_I 150
- 0340_M_I 151
- 0460_M_I 156
- 0652_M_S 157
- 0354_M_I 159
- Alarm message 160
- TEST RUN / CHECK button 160
- ON / OFF operation 160
- 0356_M_I 161
- Set CODE No. A1 with 165
- 0362_M_I 166
- (SET TEMP) button 168
- 0368_M_I 169
- 0639_X_S 173
- 0640_X_S 174
- 0641_X_S 174
- Multimeter 175
- 0643_X_S 176
- Indoor P.C.B. Ass’y 178
- Outdoor P.C.B. Ass’y 178
- 1251_X_I 179
- 1250_X_I 179
- • ACR 436 H - ACR 448 H 180
- Indoor Unit 180
- • ACR 425 H 180
- • ADR 425 H 181
- • ADR 436 H 181
- • ADR 448 H 181
- • AER 436 SHL3E 182
- Outdoor Units 182
- • AER 448 SHL3E 183
- Temperature (°C) 184
- 1577_C_I 188
- 1579_M_I 189
- 5. Appendix 190
- 5-1 P.C.B 191
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