Care and maintenance – Carrier 42XQ_42XQA User Manual
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CARE AND MAINTENANCE
Operating Conditions
The temperature ranges compatible with
the unit are as follows:
•
When the unit is operating below or
above these conditions for an extended
period of time, the diagnostics system
will detect a malfunction and the unit will
not function properly.
•
If the unit is operating under abnormal
conditions for an extended period of
time, or under extreme humidity,
condensation may be formed inside the
unit.
Minimum Operating Time
•
In normal operations, there is a minimum
of 3 minutes between each shutdown
and startup of the compressor.
Operation in the event of power outages
•
When an electrical power outage occurs
and the unit is in operation, the
operating conditions are saved and
restored automatically when the
electricity returns.
•
The programming of the TIMER will be
lost.
•
On leaving your house during a power
outage, disconnect the indoor unit to
prevent it from switching itself on
automatically when the power returns.
MODE
INDOORS OUTDOORS
COOLING
21~32
o
C
21~46
o
C
DEHUMIDIFICATION 17~32
o
C
12~46
o
C
WARNING !!!
Prevention of freezing in the indoor unit
•
When the unit is operating in conditions
of low ambient temperature, ice may
appear on the coil of the indoor unit.
When the temperature of the indoor coil
is below zero degrees Celsius, the
electronic control will cause the
compressor to disconnect to protect the
freezing unit.
Normal Operation
Some of these events may occur during
normal operation:
•
A “warbling” sound during operation or
when the unit stops – This is the sound
of the refrigerant gas flowing through the
unit.
•
Bad odors coming from the unit – Smoke
or cosmetic odors which have
accumulated while the room air was
circulating through the unit.
•
The green light on the indoor unit
flashes and there is no ventilation.
- Indicates a malfunction of the unit, and
the compressor will stop operating.
•
A loud noise can sometimes be heard
while the unit is operating or when the
unit is switched on - this is the sound of
the plastic expanding due to rapid
changes in temperature.