York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 245)

Installation

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2. Wiring: includes the power wiring and control wiring; Recheck the connection

according to our corresponding wire diagrams. Especially, please remember our communication

wire is polar; it means you must connect the communication wire correspondingly to the

terminal block.

3. Additional charge of refrigerant: Recheck the calculation formula and recalculate the

total recharge volume according to our supplied formula.

4. Open the stop-valve of gas and liquid pipe with Allen key; Check leakage of stop-valve

with soap water.

5. Test insulation; Turn on all of the indoor units and set the temperature in 17degree

with high speed in cooling mode first, after the system operated, test following system operation

parameters, including indoor units and outdoor units parameters.

Indoor unit’s parameter:

1. Air-inlet and air-outlet temperature of indoor units: Generally, the temperature

difference between them should be 10 degree according to and depended on the outdoor

ambient temperature, we think it is normal.

2. Fan speed of air-outlet of indoor units: Generally, for the duct type indoor units, the

fan speed of air-outlet should be 3m/s roughly.

3. Noise level: for the indoor units should be 40dB roughly.

Outdoor unit’s parameter:

Ambient temperature; Air-outlet of units; Air-outlet of units; Discharge temperature of

compressor; voltage; current; discharge pressure; air-inlet pressure; air-inlet pipe temperature

and compressor current. After tested all of the cooling parameters, transfer the cooling mode to

heating mode, then repeat the above process.

1 2 ... 240 241 242 243 244 245 246 247 248 249 250 ... 384 385

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
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- 107 108
3. Capacity table 109
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YDS-45-56EC/HC 119
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Part 4.4 Medium ESP Duct 152
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Part 5 Installation 240
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Gr ounded wi r e 281
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Part 6 Control System 289
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Form No. 035M00457-000 385
2009 Johnson Controls, Inc 385

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York Floor Ceiling R-410A 50Hz Service Manual Page 245

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