45MBDAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Fig. 24 —Motor Maintenance
Pump Maintenance
1. Remove four screws from the drain pump.
2. Unplug the pump power supply and water level switch cable.
3. Detach the pump.
Fig. 25 —Pump Maintenance
B. DRAIN CONNECT
Step 1. Drill Wall Hole for Connective Piping
1. Determine the location of the wall hole based on the location of the
outdoor unit.
2. Using a 2.5in (65mm) or 3.54in (90mm) core drill, drill a hole in the
wall. Make sure that the hole is drilled at a slight downward angle, so
that the outdoor end of the hole is lower than the indoor end by about
0.5in (12mm). This will ensure proper water drainage.
3. Place the protective wall cuff in the hole. This protects the edges of the
hole and will help seal it when you finish the installation process.
Fig. 26 —Drill Wall Hole
Step 2: Connect Drain Hose
The drainpipe is used to drain water away from the unit. Improper
installation may cause unit and property damage.
Note on Purchasing Pipes
Installation requires a polyethylene tube (exterior diameter =
1.46-1.54in/3.7-3.9cm; interior diameter = 1.26in/3.2cm), which can be
obtained at your local hardware store or dealer.
Indoor Drainpipe Installation
Install the drainpipe as illustrated in the following Figure.
1. Cover the drainpipe with heat insulation to prevent condensation and
leakage.
2. Attach the mouth of the drain hose to the unit’s outlet pipe. Sheath the
mouth of the hose and clip it firmly with a pipe clasp.
Fig. 27 —Drainpipe Installation
Property Damage Hazard
When drilling the wall hole, make sure to avoid wires, plumbing,
and other sensitive components.
Insulate all piping to prevent condensation, which could lead to water
damage.
If the drainpipe is bent or installed incorrectly, water may leak and cause a
water-level switch malfunction.
In HEAT mode, the outdoor unit will discharge water. Ensure that the drain
hose is placed in an appropriate area to avoid water damage and slippage.
DO NOT pull the drainpipe forcefully. This could disconnect it.
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