Outdoor Coil, Indoor Coil, and Condensate Drain Pan -
Inspect the condenser coil, evaporator coil, and
condensate drain pan at least once each year.
The coils are easily cleaned when dry; therefore, inspect and clean the coils either before or after each cooling
season. Remove all obstructions, including weeds and shrubs, which interfere with the airflow through the condenser
coil.
Straighten bent fins with a fin comb. If coated with dirt or lint, clean the coils with a vacuum cleaner, using the soft
brush attachment. Be careful not to bend the fins. If coated with oil or grease, clean the coils with a mild detergent and
water solution. Rinse coils with clear water, using a garden hose. Be careful not to splash water on motors, insulation,
wiring, or air filter(s). For best results, spray condenser coil fins from inside to outside the unit. On units with an outer
and inner condenser coil, be sure to clean between the coils. Be sure to flush all dirt and debris from the unit base.
Inspect the drain pan and condensate drain line when inspecting the coils. Clean the drain pan and condensate drain
by removing all foreign matter from the pan. Flush the pan and drain trough with clear water. Do not splash water on
the insulation, motor, wiring, or air filter(s). If the drain trough is restricted, clear it with a “plumbers snake” or similar
probe device.
Outdoor Fan Adjustment
1. Shut off unit power supply and install lockout tag.
2. Remove outdoor-fan assembly (grille, motor, motor cover, and fan) by removing screws and flipping assembly
onto unit top cover.
3. Inspect the fan blades for cracks or bends.
4. If fan needs to be removed, loosen the setscrew and slide the fan off the motor shaft.
5. When replacing fan blade, position blade as shown in Fig. 9. Tighten setscrews.
Fig. 9 - Outdoor Fan Adjustment
Electrical Controls and Wiring -
Inspect and check the electrical controls and wiring annually. Be sure to turn off the
electrical power to the unit. Remove access panel to locate all the electrical controls and wiring. Check all electrical
connections for tightness. Tighten all screw connections. If any smoky or burned connections are noticed, disassemble
the connection, clean all the parts re-strip the wire end and reassemble the connection properly and securely.
Check to ensure no wires are touching refrigerant tubing or sharp sheet metal edges. Move and secure wires to isolate
from tubing and sheet metal edges.
50ZPM
Model
“A”
36
25mm (0.98”)
48
25mm (0.98”)
60
25mm (0.98”)
CAUTION
UNIT OPERATION HAZARD
Failure to follow this caution may result in equipment damage to unit components.
Keep the condenser fan free from all obstructions to ensure proper cooling operation. Never place articles on top
of unit.
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