Install Instructions

Installation Manual - B-VMH09,12,18CU-1
14
4 CONNECT THE DRAIN PIPE
4.1 Installation of drain piping
Install the drain piping as shown in figure below and take measures
against condensation. Improperly rigged piping could lead to leaks
and eventually wet furniture and belongings.
- Keep piping as short as possible and slope it downwards at a
gradient of at least 1/100 so that air may not remain trapped
inside the pipe.
-
-
Keep pipe size equal to or greater than that of the connecting
pipe (PVC pipe, nominal diameter 0.8in/20mm in, outside
diameter 1in/25mm).
Push the drain hose as far as possible over the drain socket,
and tighten the metal clamp securely.
- If the drain hose cannot be sufficiently set on a slope, fit the
hose with drain raising piping (field supply).
- Insulate the drain hose inside the building.
1 Hanging bar
2 ≥1/100 gradient
1
2
3
4
Drain socket (attached to the unit)
Metal clamp
Drain hose
Insulation (field supply)
- Make sure that heat insulation work is executed on the
following 2 spots to prevent any possible water leakage due
to dew condensation.
1 Indoor drain pipe.
2 Drain socket.
12
3 4
1-1.5m
1
2
√
×
4.2 Install the drain pipes.
3~5ft/
For local insulation, be sure to insulate local piping
all the way into the pipe connections inside the unit.
Exposed piping may cause condensation or may
cause burns when touched.
Make sure that no oil remains on plastic parts of the
decoration panel (optional equipment).
Oil may cause degradation and damage to plastic
parts.
5
1 Liquid pipe
2 Gas pipe
3 Insulation for liquid pipe fitting
4 Insulation for gas pipe fitting
5 Clamps
(use 2 clamps per insulation)
6 Indoor unit
4
B
2) Be sure to insulate both the gas and liquid piping. Use
separate thermal insulation pipes for gas and liquid
refrigerant pipes. See the figure below.
Liquid piping
6
3) Finally, insulate as shown in the figure below.
A
B
C
C
Liquid pipe
Liquid pipe
insulation
Drain hose
2
3
61
A
1
2
3
4
5
6
Piping insulation material (field supply)
Flare nut connection
Insulation for fitting (field supply)
Piping insulation material (main unit)
Indoor unit
Clamp (field supply)
Turn seams up
Attach to base
Tighten the part other than the piping insulation material
Inter-unit wire
Piping insulation procedure
54
B
6
Finishing tape
Gas piping
Gas pipe
insulation
Gas pipe
2
C
3
6
1
3
5
2
4
6
1
A