York Floor Ceiling R-410A 50Hz Service Manual download pdf (Page 267)

Installation

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4.7) Additional charge of refrigerant

Procedure

1. The refrigerant needed by the pipes installed on fields is not filled in the factory.

After finishing installation, add refrigerant when the length of liquid pipe on field is over 0 m.

2. Calculate the refrigerant to be supplemented in light of the connecting length of liquid

pipe of indoor unit and outdoor unit and pipe diameter.

Calculation

R-410A

Diameter of Liquid Pipe

Equivalent Refrigerant for Pipe Length of 1m (kg/m)

Φ6. 4 0.022

Φ9. 5 0.060

Φ12. 7 0.110

Φ15. 9 0.170

Φ19. 1 0.250

Φ22. 2 0.350

Φ25. 4 0.520

Φ28. 6 0.680

Calculating formula of refrigerant to be recharged (R410A):

Local refrigerant to be recharged R (Kg) = (L1×0. 022 kg/m) + (L2×0. 060 kg/m) + (L3×0. 110

kg/m) + (L4×0.170 kg/m) + (L5×0. 250 kg/m) + (L6×0. 350 kg/m) + (L7×0. 520kg/m) + (L8×0.

680kg/m)

Note: Conversion of the equivalent length: Convert into the direct pipe length According to

branch Junction 0.5m/l.

Where:

L1—Actual total length of ▯6.4 liquid pipe (m) L2—Actual total length of ▯9.5 liquid pipe (m)

L3—Actual total length of ▯12.7 liquid pipe (m) L4—Actual total length of ▯15.9 liquid pipe (m)

L5—Actual total length of ▯19.1 liquid pipe (m) L6—Actual total length of ▯22.2 liquid pipe (m)

L7—Actual total length of ▯25.4 liquid pipe (m) L8—Actual total length of ▯28.6 liquid pipe (m)

Caution:

For different series of air conditioning system, the calculating formula of refrigerant to be

supplemented might be different, so it is necessary to checkup the “formula in installation

Calculate refrigerant volume according to liquid pipe

length

Recharge refrigerant

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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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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
- 282 283
- 283 284
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- 285 286
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Part 6 Control System 289
- 289 290
- 290 291
- 292 293
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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 267

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