York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 249)

Installation

___________________________________________________________________________________

- 248 -

28 kW

Permitted length Pipe

Pipe total length (actual length)

≤ 250 m

L1+L2+L3+L4+L5+L6

+L7 + a+b+..i

Actual length ≤ 150 m

Farthest pipe length(m)

Equivalent length ≤ 175 m

L1+L3+L4+L5+L6+i

Pipe

length

Equivalent length L of pipe from the first

branch to the farthest one (m)

≤ 40 m L3+L4+L5+L6+i

Outdoor unit up ≤ 50 m —— Drop height between

indoor unit and outdoor

unit

Outdoor unit down ≤ 30 m ——

Drop

height

Drop height between indoor unit and indoor

unit

≤15m ——

 Conversion of the equivalent length: Convert into the direct pipe length. According to branch

Junction 0.5m/l and branch header pipe 1.0m/l.

1 2 ... 244 245 246 247 248 249 250 251 252 253 254 ... 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
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- 121 122
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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
- 281 282
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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 249

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