IM-40MBDQ-05 Specifications subject to change without notice.
13
Remove the cap from connector C and connect the condensate
drain pipe to drain connector C (see Fig. 36).
NOTE:
For size 18K, the external condensate lift pump should
be removed (see Fig. 35).
Fig. 35 — Sizes 9K, 12K, 18K with External Condensate Lift Pump
Fig. 36 — Sizes 24K to 48K with Built-in Condensate Lift Pump
DRAINAGE TEST FOR UNITS WITHOUT A
CONDENSATE LIFT PUMP
1. Ensure the drainpipe is unobstructed.
2. Fill the drain pan with 0.5 gallons (2 liters) of water.
Fig. 37 — Units without a pipe
CONDENSATE LIFT PUMP AND DRAINAGE TEST
Follow these steps to perform the test:
1. Remove the test cover by rotating it counter-clockwise (see Fig. 38).
2. Using a piece of tubing or pipe to fill the condensate lift pump
reservoir with 70 oz. of water (see Fig. 39).
3. Turn the unit
ON
in the
COOLING
mode and the condensate lift
pump turns on. Watch the end of the drain pipe for any water.
NOTE:
It may take some time for the water to travel,
depending on the length of the drain pipe.
4.
During this test, check all bends or joints for leakage.
Fig. 38 — Check the Bends and Joints for Leakage
Fig. 39 — Tube Pipe Insert
Condensate Lift Pump Maintenance
1. Remove the four screws from the drain pump (sizes 24K to 48K).
2. Unplug the pump power supply and the water level switch cable.
3. Detach the pump.
Fig. 40 — Detach the Pump
Connector C
Connector C
Stow tube
Pump