Sharp R-426H Service Manual download pdf (Page 124)

2. Processes and functions

II - 20

2-19 Voltage Detection Control

When the power voltage falls below 160 V (voltage between N phase and each phase) or

rises above 260 V, the “P2” alarm is issued to protect the compressor and electrical

components.

1 ... 123 124 125 ... 194

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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Sharp R-426H Service Manual Page 124

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