Installation Diagram; Drain Piping For Outdoor Unit - Mitsubishi Electric SUHZ-SW-VA series Installation Manual

3. Installation diagram

■
SUHZ-SW45
417.5
Air inlet
Air inlet
175
Fig. 3-1
4. Drain piping for outdoor unit (Fig. 4-1)
SUHZ-SW45VA
Drain socket
1
Fig. 4-1
840 81 (mm)
Drainage hole
(ø4)
40
Air outlet
500
-10 mm × 1 mm slot
Drain hose
3.1. Outdoor unit (Fig. 3-1)
Ventilation and service space
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SUHZ-SW45
A 100 mm or more
B 350 mm or more
C 500 mm or more
When the piping is to be attached to a wall containing metals (tin plated) or metal
netting, use a chemically treated wooden piece 0 mm or thicker between the wall
and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping.
Units should be installed by licensed contractor accordingly to local code re-
quirement.
Note:
When operating the outdoor unit in low outside temperature, be sure to fol-
low the instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side may be ex-
posed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet side facing
the wall.
• To prevent exposure to wind, it is recommended to install a baffle board on the
air outlet side of the outdoor unit.
4.1. Accessories
Check the following parts before installation.
<Outdoor unit>
Drain socket
• Provide drain piping before indoor and outdoor piping connection. (It will be hard
to install drain socket if indoor and outdoor piping connection is conducted
prior to drain piping as outdoor unit becomes immovable.)
• Connect the drain hose (obtainable at a store, inside diameter: 15 mm) as
shown in the figure for drainage.
• Make sure to provide drain piping with a downhill grade for easy drain flow.
Note:
Do not use the drain socket in the cold region. Drain may freeze and it
makes the fan stop.
• Do not use the drain socket for the SUHZ-SW45VAH.
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