York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 255)

Installation

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4.5) Precautions:

4.5.1 Refrigerant pipe must use the pipe with specified diameter.

4.5.2 Branch Part should be installed in horizontal mode or vertical mode.

4.5.2 Y shape three-way pipe should be installed in horizontal mode with ground.

4.5.4 Horizontal installation of throttling unit (throttling unit is an external unit, so it need

be connected on site)

Caution:

a. Install the throttling part upright, and ensure that it does not incline or is reversed.

b. Use two spanners to connect the electronic throttling part with the pipes of the indoor and

outdoor units, so as to avoid the copper pipe from deforming or getting broken.

c. Use flaring opening to connect the electronic throttling part with the pipes of the indoor and

outdoor units. Do not use welding for the connection, because the heat caused during the

welding process will be transferred to the electronic expansion valve via the copper pipe, which

may damage the electronic expansion valve.

d. Pay attention to the connection direction (refer to the label on the electronic throttling part).

e. For the installation size of the electronic throttling part, see the above figure.

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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
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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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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 255

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