Install Manual

Page 38
mrcool.com
Maintenance
Outdoor Heat Exchanger
Condensate Drain
Periodically check if the condensate drain is blocked to avoid condensate water problems. Condensate should
flow freely through the drain.
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 a compressed air source is available;
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 Checklist
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 again after an extended period of inactivity, flip the power switch of the air conditioner
to “ON” status at least 8 hours prior to operation to preheat the crankcase of the compressor.
5. Check that the outdoor unit is firmly secured;
6. If problems are detected, contact your local service professional, or MRCOOL
®
Technical Support,
at [phone]
.
Post-Season Maintenance Checklist
1. Deactivate the main power to the air conditioner.
2. Remove dust and debris from the outdoor unit.
3. If the outdoor unit starts to develop rust, paint the rusty location to prevent the corrosion from continuing
to spread.
Components are available from MRCOOL
®
and associated dealers.
Component Replacement
Unit Maintenance