Blueridge BMHH18M22-6C2-6C2, Owner'S Manual & Installation Manual, Page: 31 / 48

Drainpipe Installation
Drainpipe
Installation
 
Page 31
The drainpipe is used to drain water away from
the unit. Improper installation may cause unit
and property damage.
•
Insulate all piping to prevent condensation,
which could lead to water damage.
•
If the drainpipe is bent or installed
incorrectly, water may leak and cause a
water-level switch malfunction.
•
In HEAT mode, the outdoor unit will
discharge water. Ensure that the drain hose
is placed in an appropriate area to avoid
water damage and slippage.
•
DO NOT pull the drainpipe forcefully. This
could disconnect it.
NOTE ON PURCHASING PIPES
Installation requires a PVC tube (exterior
diameter = 3/4 in( 19 mm) ) (depending
on models ), which can be obtained at
your localhardware store or dealer.
Indoor Drainpipe Installation
Install the drainpipe as illustrated in the following
Figure.
Connect drainpipe to the indoor unit via drain
adaptor.
Drainpipe
connecting port
Drainpipe
Drain adaptor
Metal clamp
Downward slope
1/100
1-1.5m
(39-59”)
NOTE ON DRAINPIPE INSTALLATION
•
When using an extended drainpipe, tighten
the indoor connection with an additional
protection tube to prevent it from pulling
loose.
• The drainpipe should slope downward at a
gradient of at least 1/100 to prevent water
from flowing back into the air conditioner.
• To prevent the pipe from sagging, space
hanging wires every 1-1.5m (39-59”).
If the outlet of the drainpipe is higher than
the body’s pump joint, provide a lift pipe for
the exhaust outlet of the indoor unit. The
lift pipe must be installed no higher than
75cm (29.5”) from the ceiling board and the
distance between the unit and the lift pipe
must be less than 30cm (11.8”) (depending
on models ).
Incorrect installation could cause water to
flow back into the unit and flood.
To prevent air bubbles, keep the drain hose
level or slightly tiled up (<75mm / 3”).
•
•
≤75cm
(29.5”)
1 - 1.5m
(39-59”)
0 - 75mm
(3”)
≤30cm
(11.8”)
≤53cm (20.8”)
22cm (8.6”)