Airwell DVHA Serie Manuel D'utilisation Et D'installation page 17

Installation Procedures
(a) Keep a gradient (1/50-1/100) of the drainpipes and avoid lobing or curving.
Proper Piping
hanging bolt
1.5m ~ 2m
heat insultor
gradient of 1/100 or over
(b) When connecting the drainpipe to the equipment, don't apply too much force on one side of
the equipment. Meanwhile, the piping should be positioned as close to the equipment as
possible.
(c) For the drainpipe, the general purpose hard PVC tube can be purchased at local shops. During
the connection, insert the end of PVC tube into the wash port and fasten it with drainage hose
and thread clip. Binding agents shouldn't be used to connect the wash port and drainage hose.
wash port
main unit
thread clip
(accessory)
sealing washer [for insulation](accessory)
(d) When the laid drain piping is used for multiple equipments,the public piping should be lower
about 100mm than the wash ports of equipments, as shown in the figure.
Thicker pipes should be used for this application.
(e) The hard PVC tube in the room must be provided with the heat insulating layer.
(f) Don't place the drainpipes at the places where there is irritant gas. Don't put the drainpipe directly
into the sewer, where there might be gases with sulfur.
wash port
drainage hose
sealing washer [for insulation]
(accessory)
drainage hose
binding
sealing washer [for insulation](accessory)
ensure the biggest height difference (about 100mm)
gradient of 1/100 or over
Improper Piping
air outlet port
joint (purchased at local shop)
hard PVC tube (purchased at local shop)
9
avoid lobing
avoid curving
don't put pipe
into water