7
INSTALLING MOUNTING BRACKET AND MOUNT-
ING UNIT (FLOOR STANDING) — The mounting brack-
et (see Fig. 10) can be anchored to the wall with screws. For
unit weight and mounting dimensions, see Table 4.
Table 4 — Unit Weight and Mounting Dimensions
(Floor Standing)
The unit can now be lifted and mounted onto the mounting
brackets.
1.
Anchor the brackets at the specified location on the wall
using the mounting screws. See Fig. 11.
2.
Once the brackets are secured, lift the unit and mount it
on the brackets. Be sure the brackets are engaged in the
correct mounting locations on the back of the unit.
For models 036 and 048 there is an outside air opening on
the back of the unit. See Fig. 12 below.
Step 4 — Connect Piping
CONDENSATE PIPING — The unit is supplied with a
5
/
8
-in. OD drain connection to connect copper or plastic drain
piping. When installing condensate piping, follow these recom-
mendations:
• Condensate piping should slope downward in the direc-
tion of condensate flow, with a minimum gradient of
1 in. per 100 inches.
• When multiple units are connected to a common conden-
sate drain, ensure that the drain is large enough to accom-
modate the volume of condensate from all units. It is also
recommended to have an air vent in the condensate pip-
ing to prevent any air locks.
• Condensate piping must not be installed where it may be
exposed to freezing temperatures.
REFRIGERANT PIPING
When connecting from an indoor unit to an outdoor unit,
follow these procedures:
• Check for maximum elevation differential and length of
refrigerant piping between the indoor and outdoor unit. If
the difference is more than 33 ft, consider mounting the
outdoor unit above indoor unit.
• Refrigerant piping connection between indoor and out-
door units should be performed once the units are
secured at their respective installation locations.
• The refrigeration piping starts at the indoor unit and ends
at the outdoor unit.
• The number of bends in the refrigeration piping must be
fewer than 15.
• The refrigerant piping should be dry and free of dust and
other impurities.
• The bending angle of the refrigerant pipe should not
exceed 90 degrees and the bending radius should be as
large as possible to prevent any breakage in piping.
• Use proper cutting and flaring tools to avoid leakage.
• Before insulating the suction and liquid refrigeration
pipes, perform pressure and leak tests. For details, see
the outdoor unit installation manual. Insulating both suc-
tion and liquid refrigerant pipes is required.
• Vacuuming and charging of the system should be carried
out as described in the outdoor unit installation manual.
40VMU UNIT
WEIGHT (lb)
DIMENSION (in.)
A
B
012
57
19
7
/
8
19
7
/
8
015-024
62
19
7
/
8
19
7
/
8
030
76
31
1
/
4
19
7
/
8
036,048
106
42
1
/
8
17
3
/
4
CAUTION
To avoid site damage, be sure there are no water, plumbing,
or electrical lines running through the wall at the mounting
location.
IMPORTANT: Be sure to anchor the brackets on wall studs.
Fig. 10 — Mounting Bracket Locations
A
B
BRACKET
A40-1
8
61
Fig. 11 — Mounting Brackets to Wall
BRACKET
TAPPING
S
CREW
WA
S
HER
< 0.25 IN.
CAUTION
Cut along the marked dotted line only. Failure to do so may
result in damage to the equipment.
CAUTION
When connecting from an indoor unit to an outdoor unit,
the isolation valve at the outdoor unit should be in the
closed position throughout the refrigerant piping process.
Failure to follow this procedure may result in equipment
damage.
For outside air opening,
please cut along the marked
dotted line.
Fig. 12 — Outside Air Opening Cutout Location
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