York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 258)

Installation

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 Don’t place the pipe on the ground directly or scratch with the ground.

Cut the pipe and remove burrs with the cut surface downward.

 Be sure to place a cap when raining.

4.6.2 Welding

1) Be sure to weld horizontally or downward, not upward.

2) Pay attention to the installation direction and angle to prevent oil-return or oil-accumulation.

3) Its necessary to charge nitrogen when welding.

 Be far away from fire and prepare fire extinguishers and water to prevent fire on field.

 Be careful not to injure people.

 Confirm the proper clearance between pipe and connector.

 Check if the supporting structural members are strong enough.

 The traverse distances between supporting structural members are as follows:

Diameter (mm) Below 20 25~40 50

Max. Distance (m) 1.0 1.5 2.9

1 2 ... 253 254 255 256 257 258 259 260 261 262 263 ... 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
- 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
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- 150 151
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
- 281 282
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- 287 288
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 258

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