Page 37 mrcool.com
Maintenance
Outdoor Heat Exchanger
Warning
1) Before cleaning, ensure the power is o. Turn o at circuit breaker and remove the disconnect , to
avoid electric shock.
3) When cleaning the lter, be careful. If you need to work above the ground, please exercise caution.
2) Do not wash the air conditioner with water, otherwise re or electric shock may occur.
Condensate Drain
Periodically check if the condensate drain is blocked to avoid condensate water problems.
Clean the heat exchanger on the outdoor unit periodically — at least once every two months.
Remove the dust and sundries on the surface of the heat exchanger with dust collector and nylon
brush. If there is a compressed air source; use the compressed air to gently blow the dust off the
surface of the heat exchanger. Do not use tap water for cleaning.
Pre-Season Inspection Check List
1) Check for blockages in the air inlet/outlet;
2) Check the ground connection;
3) Check that the air filter screen is properly installed and clean;
4) If starting up again after a long period of inactivity, present the power switch of the air conditioner
to “ON” status at least 8 hours prior to operation to preheat the crankcase on the compressor.
5) Check that the outdoor unit is firmly secured;
6) If problems are detected, contact your local service professional or MRCOOL
®
.
Post-Season Maintenance Check List
1) Deactivate the main power to the air conditioner;
2) Remove dust and debris from the outdoor unit;
3) If the outdoor unit is rusty, paint the rusty location to prevent it from growing.
Components are available from MRCOOL
®
and associated dealers.
Component Replacement
Unit Maintenance
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