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Heat Controller
Outdoor Unit Installation
• Install the outdoor unit on a rigid base such as a
concrete slab, to prevent increasing noise level and
vibration.
• Use a raised concrete pad or concrete blocks to
provide a solid, level surface. Securely anchor the
unit down with bolts.
• In a snowy area, slab should be higher than drifting
snow.
• See outdoor installation location information on page
4 for more details and acquired clearances.
Anchoring outdoor unit
Anchor the outdoor unit to the concrete slab with lag
bolts.
NOTE: Lag bolts are field provided and do not come
with the unit.
Refer to unit's mounting footprint for mounting hole
locations A & B. (Fig. 18)
Model
VMH 09
29.9 in.
VMH 12
(760 mm)
33.3 in.
VMH18
(845 mm)
36.7 in.
VMH 24
(900 mm)
Condensate Drainage
• Condensate and defrosted water, created by the
unit operating in heat mode, should be routed
and drained away from the unit.
• Fit the seal onto the drain elbow, then insert the
drain elbow into the hole on the base pan of the
outdoor unit, rotate it 90° to secure into place.
(Fig. 19)
• Connect a locally purchased drain and insulated
hose to the hose barb end of the elbow.
• Route the hose to drain location away from
the unit.
Note:
Some models may have more then one drain hole in
the base of the unit.
Installation and Operation Manual - VMH 09/12/18/24 SU Series
W
H
11.2 in.
23.2 in.
(285 mm)
(590 mm)
12.6 in.
27.6 in.
(320 mm)
(700 mm)
12.9 in.
35.1 in.
(315 mm)
(860 mm)
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split
Air inlet
D
W1
A
32.4 in.
20.9 in.
(823 mm)
(530 mm)
35.7 in.
22.0 in.
(908 mm)
(560 mm)
40 in.
24.1 in.
(980 mm)
(590 mm)
Drain elbow
Seal
9
9
Air inlet
W1
Air outlet
Fig. 18
B
11.4 in.
(290 mm)
13.2 in.
(335 mm)
13.6 in.
(333 mm)
Base pan hole of
outdoor unit
Fig. 19
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