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Cooling and Heating Recovery Mode Exchanger
Connecting method is as shown in the picture:
4.2.7.4 Branch selection of indoor unit of mode exchanger ("C1")
R410A refrigerant system
Y-type branch
4.2.7.5 Piping size between mode exchanger and downstream indoor unit ("m")
Size of connection pipe between indoor branch and indoor unit should be consistent with the
connection pipe of indoor unit.
Piping between indoor branch and indoor unit "m"
Rated capacity of indoor units:c
/Btu/h
48500＜c≤72000
72000＜c≤96000
4.3 Installation and Test for Drainage Hose
4.3.1 Precaustions for the Installation of Drainage Hose
(1) As for the drainage hose, the shorter the better. The drainage hose should be kept 1%～2% at
least gradient for draining out the condensate water .
(2) The side of drainage hose must be bigger than or equal to the size of drainage piping.
(3) Install the drainage hose according to below fig and then perform thermal insulation for it.
Incorrect installation may lead to leakage and then moisten indoor furniture and other objects.
(4) Purchase the normal hard PVC pipe at local market as for the drainage pipeline. Insert the end
part of PVC pipe into the drainage hole, and then tighten it with drainage hose and tieline. Do not
use adhesive glue to connect drainage hole and drainage hose.
(5) When the pipeline is used for multiple units, the position for the commoon pipelie should be
lower than the drain outlet of every unit 100m (3937in.). In this case, thick pipes should be
adopted.
Fig. 4.32
capacity of downsteam indoor
units: X /Btu/h
48500＜X≤96000
Size of connection pipe between indoor branch and indoor unit
Gas pipe /mm(in.)
Φ19.05(3/4)
Φ22.2(7/8)
23
Model
VEBC01B
Liquid pipe /mm(in.)
Φ9.52(3/8)
Φ9.52(3/8)
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