R410A 60Hz EER 2.36 Series Service Manual
4.3 Upwards drainage (drain pump)
Ceiling cassette (compact)
Ceiling cassee
4.4 Convergent drainage
4.4.1. The number of indoor units should be as small as possible to prevent the traverse main pipe
overlong.
4.4.2. Indoor unit with drain pump and indoor unit without drain pump should be in different drainage
system.
4.4.3. Selecting the diameter
Number of connecting indoor units
Calculate drainage volume Select the diameter
Calculate allowed volume =Total cooling capacity of indoor units(HP)×2 (l/ hr)
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