OFF cycle. The heater is energized only when the unit is
not operating. If the main switch is disconnected for long
periods of shut down, do not attempt to start the unit
until 8 h after the switch has been connected. This allows
sufficient time for all liquid refrigerant to be driven out of
the compressor.
The installer must also instruct the owner on correct
operation and maintenance of all other system
components.
Maintenance
• Dirt must not accumulate on the outdoor coils
or other parts in the air circuit. Clean as often as
necessary to keep the unit clean. Use a brush,
vacuum cleaner attachment, or other suitable
means.
• The outdoor fan motor bearings are permanently
lubricated and do not require periodic oiling.
• If the coil needs to be cleaned, it must be washed
with water or with Nu-Calgon Cal-Green (or
equivalent). If using coil cleaner, follow the
directions included with it. Rinse thoroughly with
clean water after use. Do not use a high pressure
power washer on the coil or fin damage may occur.
• Refer to the furnace or air handler Installation
Manual for filter and blower motor maintenance.
• The indoor coil and drain pan must be inspected
and cleaned regularly to prevent odors and ensure
adequate drainage.
CAUTION
It is unlawful to knowingly vent, release or discharge
refrigerant into the open air during repair, service,
maintenance, or the final disposal of this unit.
R-410A Outdoor Split-System Heat Pump Installation Manual - YH2E / THE2 / RHP143 Series38
Johnson Controls Ducted Systems
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