York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 272)

Installation

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6. YDS insulation work

6.1 Insulation material and thickness

6.1.1 Insulation material

Insulation material should adopt the material, which is able to endure the pipe’s

temperature: no less than 70

C in the high-pressure side, no less than 120

C in the low-

pressure side (For the cooling type machine, no requirements at the low-pressure side.)

Example: Heat pump type----Heat-resistant Polyethylene foam (withstand above 120

Cooling only type---- Polyethylene foam (withstand above 100

6.1.2 Thickness choice for insulation material

Insulation material thickness is as follows:

Pipe diameter (mm) Adiabatic material thickness

Φ6.4—Φ25.4

10mm

Φ28.6—Φ38.0

15mm

Refrigerant pipe

Φ38.0—Φ67.0

20mm

Drainage pipe

Inner diameterΦ20—Φ32

6mm

6.2) Refrigerant pipe insulation

6.2.1 Work Procedure

6.2.1.1 Before laying the pipes, the non-jointing parts and non-connection parts should be heat

insulated.

6.2.1.2 After the gas proof test is eligible, the jointing area, expanding area and the flange area

should be heat insulated

6.2.2 Insulation for non-jointing parts and non-connection parts

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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
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- 117 118
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 272

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