Step 3 - Mount The Unit; Step 4 - Connect Piping; General - Carrier 40WAW007-024 Installation And Maintenance Instructions Manual

6 in. MIN.
5 in.
MIN.
Fig. 4 — Required Clearances
• The unit should not be positioned directly above any
obstruction.
• The unit must be installed square and level.
• The condensate drain should have sufficient downward
slope in the condensate flow direction.
Step 3 — Mount the Unit
CAUTION
When determining the unit mounting location, make sure
that there are no water, plumbing, or electrical lines run-
ning through the wall. Failure to follow this instruction
may result in property damage.
1. Detach the mounting plate from the unit.
2. Place the mounting plate on the wall where the unit will
be installed and mark the mounting holes. See Fig. 5.
Be sure the mounting hole marks are positioned over the
wall studs.
18-1/4
28
UNIT SIZES 007-012
28-3/4
31-3/8
UNIT SIZES 015-018
28-1/4
32
UNIT SIZE 024
NOTE: All dimensions in inches.
Fig. 5 — Mounting Plate
5 in.
MIN.
A40-1705
MOUNTING
PLATE
MOUNTING
PLATE
MOUNTING
PLATE
A40-1706
5
3. Mark the condensate and refrigerant piping route. If nec-
essary, cut hole in wall to route the piping.
4. Secure the mounting plate with screws that can support
the weight of the unit. For nominal weight of the unit, see
Table 1.
5. Make sure the mounting plate is leveled and flush with
the wall.
6. Secure the unit in position by lifting the unit over the
mounting plate. Make sure the hook on the mounting
plate aligns with the slot on the back of the unit. To ensure
proper fit, slide the unit sideways. If the unit is locked in
the correct position, it should not move.
Step 4 — Connect Piping

GENERAL

1. For condensate and refrigerant piping, lift the unit from
bottom, making sure the unit is still attached to the
mounting plate at the top. See Fig. 6.
2. Introduce temporary cushioning material to maintain the
space needed to connect the piping and to avoid damage
to unit and wall. See Fig. 6.
HOOK
Fig. 6 — Piping Connection
3. When the piping connections are completed, remove the
cushioning material and make sure the unit is flush with
the wall.
CONDENSATE PIPING — The unit is supplied with a
3 / -in. OD drain connection to connect copper or PVC drain
4
piping. When installing condensate piping, follow these recom-
mendations:
• Condensate drain should slope downward in the direc-
tion of condensate flow.
• DO NOT install any U bends or dump the condensate
line in a sump filled with water. See Fig. 7.
Fig. 7 — Condensate Piping, Poor Installation
• 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.
• Condensate piping can be routed in one of the four direc-
tions shown in Fig. 8.
CUSHIONING
MATERIAL
A40-1707
a40-1708