Inspect unit at the beginning of each heating and cooling season and during each season as operating conditions may require.
MICROCHANNEL HEAT EXCHANGER (MCHX) CONDENSER COIL MAINTENANCE AND CLEANING RECOMMENDATIONS
Do not apply any chemical cleaners to MCHX condenser coils. These cleaners can accelerate corrosion and damage the coils.
Routine cleaning of coil surfaces is essential to maintain proper operation of the unit. Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit.
The following steps should be taken to clean MCHX condenser coils:
Clean or replace at start of each heating and cooling season or more often if operating conditions require. Refer to Installation Instructions for type and size.
OUTDOOR-AIR INLET SCREENS
Source: Carrier (www.shareddocs.com)