York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 294)

Controller

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2. Check, the check procedure is as follows:

3. CN14，Low pressure protection（L-PRO）, Check with +5vweak electric signal;

4. CN13 High pressure protection H-PRO, Check with +5vweak electric signal;

5. CN12，Inter-communication between indoor and outdoor units, RS-485 signal (COM).The

digital pipe will display “E2” malfunction when the indoor and outdoor units can’t communicate

for 1 minute.

6. Current protector, the one–phase current of fixed-speed compressor will pass this current

protector and when the current is more than 16A, it will cut the power supply immediately to

protect the compressor.

7. Current protector, the one–phase current of digital scroll compressor will pass this current

protector and when the current is more than 16A, it will cut the power supply immediately to

protect the compressor.

8. CN11，Discharge temperature sensor of digital compressor COM.PIPE）, which inside in the

digital compressor, the relevant temperature to sensor please see the appendix 2. If the

discharge temperature is more than 140

C, the compressor and all of the system will stop and

restart until the malfunction is eliminated.

9. CN6，Three-phase power supply input ，only check the phase-sequence or loss-sequence

for the first time power on. The digital pipe display “E1” when first power on, the system will

recover until there is no phase-sequence or loss-sequence occur. If there is no phase-sequence

or loss-sequence occur for the first power on, the system will not check the phase-sequence or

loss-sequence until power on over again.

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TECHNICAL SERVICE MANUAL 1
Part I General Information 5
Contents 18
Part 3 Outdoor 27
YDS-100WC15/35 50
YDS-140WC15/35 50
A 624 1030 52
B 55 52
C 1030 52
Part 4.1 Four-way cassette 72
Piping: 8m (horizontal) 79
Notes: 80
YDS-28-80KC 230 170 89
YDS-90-140KC 300 190 89
Indoor unit H(mm) 90
YDS-28-80KC ≥260 90
YDS-90-140KC ≥300 90
YDS-22-56GC ≥280 90
- 100 101
- 101 102
Part 4.2 Wall Mounted 103
- 103 104
- 104 105
- 105 106
- 106 107
- 107 108
3. Capacity table 109
- 109 110
- 110 111
- 111 112
- 112 113
- 114 115
- 115 116
- 116 117
- 117 118
YDS-45-56EC/HC 119
- 119 120
- 120 121
- 121 122
- 122 123
- 123 124
- 124 125
- 125 126
- 126 127
- 127 128
- 128 129
- 129 130
- 130 131
- 131 132
- 132 133
- 133 134
- 134 135
- 135 136
- 136 137
- 137 138
- 138 139
- 139 140
- 140 141
- 141 142
- 142 143
- 143 144
- 144 145
- 145 146
- 146 147
- 147 148
- 148 149
- 149 150
- 150 151
Part 4.4 Medium ESP Duct 152
- 152 153
- 153 154
- 154 155
- 155 156
- 156 157
- 157 158
- 158 159
- 159 160
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- 229 230
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- 233 234
- 234 235
- 235 236
- 237 238
- 238 239
Part 5 Installation 240
- 240 241
- 241 242
- 242 243
- 243 244
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- 245 246
- 246 247
- 249 250
- 250 251
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- 253 254
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- 271 272
- 272 273
- 273 274
- 275 276
- 276 277
- 277 278
- 278 279
- 279 280
Gr ounded wi r e 281
- 281 282
- 282 283
- 283 284
- 284 285
- 285 286
- 286 287
- 287 288
Part 6 Control System 289
- 289 290
- 290 291
- 292 293
- 293 294
- 295 296
- 298 299
- 299 300
- 300 301
- 301 302
- 302 303
- 303 304
- 304 305
- 305 306
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- 379 380
- 380 381
- 381 382
- 382 383
- 383 384
Form No. 035M00457-000 385
2009 Johnson Controls, Inc 385

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York Floor Ceiling R-410A 50Hz Service Manual Page 294

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