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Si39-406
Installation
General Information
45
Piping Diameter
for Grouped
Drain Pipes
Select piping diameter from the below table in accordance with the amount of condensation
drained by all units with a common drain pipe.
Consider 2 l/hr of drainage for every 1 HP. For example, drainage from 3 units running at 2 HP
and 2 units running at 3 HP is calculated as follows.
2 (l/hr) × 2 (HP) × 3 (units) + { 2 (l/hr) × 3 (HP) × 2 (units) = 24 l/hr
1. Relationship between horizontal pipe diameter and allowable drainage (for extended ventilation
system)
Note:
Calculations have been made with water area inside the pipe as 10%.
Allowable flow rate figures below the decimal have been discarded.
Use VP30 or larger pipe after the convergence point.
2. Relationship between riser diameter and allowable drainage (for extended ventilation system)
Note:
Allowed flow rate figures below the decimal have been discarded.
Use VP30 or larger pipe in risers.
Use the same drain pipe for the humidifier as the indoor unit.
JIS nominal
Vinyl chloride pipe
diameter in. (mm)
Allowable flow rate (l/hr)
Remarks
Piping gradient 1:50
Piping gradient 1:100
VP20
3/4" (20)
39
27
(Reference value) Cannot be
used in grouped piping.
VP25
1" (25)
70
50
VP30
1 1/4" (31)
125
88
Can be used in grouped
piping.
VP40
1 1/2" (40)
247
175
VP50
2" (51)
473
334
JIS nominal
Vinyl chloride pipe
diameter in. (mm)
Allowable flow rate
(l/hr)
Remarks
VP20
3/4" (20)
220
(Reference value) Cannot
be used in grouped piping.
VP25
1" (25)
410
VP30
1 1/4" (31)
730
Can be used in grouped
piping.
VP40
1 1/2" (40)
1440
VP50
2" (51)
2760
VP65
2 1/2" (67)
5710
VP75
3" (77)
8280
Summary of Contents for REYQ96MTJU
Page 1: ...Design Installation Testing Instruction R410A Heat Recovery 60Hz REYQ96MTJU Si39 406...
Page 6: ...Si39 406 iv Table of Contents...
Page 34: ...Installation Si39 406 28 General Information Flaring Procedure...
Page 68: ...Installation Si39 406 62 General Information Caution Caution label 3P124617 4P124614...
Page 114: ...Appendix Si39 406 108 General Information 3P135887 1...
Page 126: ...Appendix Si39 406 120 General Information 7 8 3 BS Unit BSVQ36MVJ BSVQ60MVJ 4D045338...
Page 128: ...Appendix Si39 406 122 General Information 7 9 2 Field Wiring REYQ96MTJU 3D042647A...
Page 156: ...Refrigerant Piping Si39 406 150 Installation Manual REYQ96MTJU...
Page 158: ...Refrigerant Piping Si39 406 152 Installation Manual REYQ96MTJU...
Page 230: ...Precautions for New Refrigerant R410A Si39 406 224 Precautions for New Refrigerant R410...
Page 236: ...375 Park Avenue Suite 3308 New York N Y 10152 info daikinac com www daikinac com...