Owners Manual

Page 38
mrcool.com
Maintenance
Outdoor Heat Exchanger
Condensate Drain
Periodically check if the condensate drain is blocked to avoid condensate backing up into the system, as
this could cause property damage and/or the unit to fail.
Clean the heat exchanger on the outdoor unit, at least once every two months. Remove the dust and debris
on the surface of the heat exchanger with a 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 and make sure it is still securely connected.
3. Check that the air filter screen is properly installed and clean.
4. If starting up the unit after a long period of inactivity, flip the power switch of the air conditioner to “ON”
status at least 8 hours prior to operation. This is 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
®
Tech Support,
at [phone].
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 location with anti-rust paint to prevent it from continuing to spread.
Components are available from MRCOOL
®
and associated dealers.
Component Replacement
Unit Maintenance