York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 276)

Installation

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- 275 -

The following table takes steel pipeline as an example, the other thickness of the pipeline

material can be looked up in the correlative standard of the book <construction and accept

criterion>

Square pipeline 600/630

Type Pipeline

Diameter

(long border )

dimension

Ground

pipeline

Middle and low

pressure system

High pressure system

80—320 0.5 0.5

340—450 0.6 0.6

480—630 0.8 0.6

670—1000 0.8 0.8

0.8

1120—1250 1.0 1.0 1.0

1320—2000 1.2 1.0 1.2

2500—4000 1.2 1.2 1.2

7.2) Pipeline Installation

7.2.1 When the pipeline and its accessories pass through wall, board and roof, holes should

be reserved in advance, and the dimension and location should meet the design demand.

7.2.2 The configure of the spot pipeline connection should not reduce its valid section.

7.2.3 The hanger can’t be set at the air-outlet, valve, and examination-port and automatic

control machine. And the suspender isn’t suitable to be fixed at the flange.

7.2.4 The configure of the spot pipeline connection should not reduce its valid section.

Horizontal installation Vertical installation

Unconcealed

Illi

δ≤3mm/m Δ≤20mm δ≤2mm/m Δ≤20mm

Concealed Installation Installation correct, no obvious tolerance

δ—tolerance /meter Δ—total tolerance

7.2.5 The hanger of insulated pipeline should set outside the insulation layer and can’t injure

the insulation layer.

1 2 ... 271 272 273 274 275 276 277 278 279 280 281 ... 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
- 122 123
- 123 124
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- 125 126
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- 128 129
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- 148 149
- 149 150
- 150 151
Part 4.4 Medium ESP Duct 152
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Part 5 Installation 240
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- 279 280
Gr ounded wi r e 281
- 281 282
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- 286 287
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Part 6 Control System 289
- 289 290
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- 298 299
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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 276

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