Care and maintenance
CAUTION: Before performing any maintenance, turn off the main power to the system.
You can do some of the periodic maintenance for your unit yourself; this includes, cleaning unit
cabinet, clearing the condenser coil, and conducting a general unit inspection on a regular basis.
Before removing access panels to service unit, disconnect power supply. Failure to disconnect power
before attempting any servicing can result in severe injury or death.
Filter
The units are shipped without a filter and is the responsibility of the installer to secure a filter in the return
air ductwork.
Filter must always be used and must be kept clean.
When filters become dirt laden, insufficient air will be delivered by the blower, decreasing your units
efficiency and increasing operating costs and wear-and-tear on the units and controls.
Filters should be checked monthly especially since the unit may be used for both heating and cooling.
Condenser coil
Unfiltered air circulates through the unit's condenser coil and can cause the coil's surface to become
clogged with dust, dirt, etc.. To clean the coil, vertically (i.e., along the fins) stroke the coil surface with a
soft bristled brush.
Keep all vegetation away from the condenser coil area.
Maintenance Performed by Serviceman-Cooling Season
To keep your unit operating safely and efficiently, the manufacturer recommends that a qualified
serviceman check the entire system at least once each year, or more frequently if conditions
warrant. Your serviceman may examine these areas of your unit:
1. Filter (for cleaning)
2. Motors and drive system components
3. Condenser coils (for cleaning)
4. Safety Controls (for mechanical cleaning)
5. Electrical components and wiring (for possible replacement or connection tightness)
6. Condensate drain (for cleaning)
7. Inspect the unit duct connections to ensure they are physically sound and sealed to the unit casing.
8. Inspect the unit mounting support to see that it is sound.
9. Inspect the unit to ensure there is no obvious deterioration.
Maintenance Performed By Serviceman-Heating Season
Complete the unit inspections and service routines described below at the beginning of each heating
season.
• Inspect the controller panel wiring to verify that all electrical connections are tight and that wire insulation
is intact.
WARNING
6