York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 271)

Installation

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5.5) Drainage test

5.5.1 Drainage without drain pump

After finishing drainpipe installation, pour some water into the water plate to check if the

water flows smoothly.

5.5.2 Drainage with drain pump

5.5.2.1 Poke the Water Level Switch, remove the cover, and use water pipe to pour 2000ml

water into the water plate through the water inlet.

5.5.2.2 Turn on the power to cooling operation. Check the pump’s operation and switch on the

Water Level Switch. Check the pump’s sound and look into the transparent hard pipe in the

outlet at the same time to check if the water can discharge normally.

5.5.2.3 Stop the air conditioner running, turn off the power, and put back the cover.

 Stop the air conditioner. After 3 minutes, check if it has abnormity. If the collocation of

drainpipes is illogical, the water will flow back overfull, which will cause the alarm lamp flashes,

even circumfluence from the water plate.

 Keep on pouring water until it gives an alarm signal for high water level, check if the pump

drains water at once. If the water level can’t fall below the alarmed water level after 3 minutes,

the air conditioner will stop (means this indoor unit stops, stand-by, but the outdoor unit still

work if there is capacity requirement). Turn off the power and drain the remained water, and

then turn on the air conditioner.

Note: the drain stopper in the main water plate is for maintenance. Stuff up the drain stopper to

prevent water leakage.

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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
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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
- 289 290
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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 271

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