mrcool 13seer r410 cond install manual 4web

Unitary Ducted Split AC & HP
32
E4
Air discharge
high-
temperature
protection of
compressor
Exhaust over-
temperature
protection
The exhaust temperature is higher than 125°C for
more than 5sec, the system will be shut down. After
stopping the compressor for 3 mins, if the exhaust
temperature is lower than 90°C for more than 5
sec, the compressor will re-start. For the rst two
faults within 30 minutes, the unit can be recovered
automatically. If over three times, the unit cannot be
recovered automatically.
F2
Malfunction
of condenser
temperature
thermistor
Condenser
temperature
thermistor
Malfunction of condenser temperature thermistor
is detected when there is a short circuit or an open
circuit in the condenser temperature thermistor for
more than 5 sec. The system will be shut down. The
reset for the malfunction of condenser temperature
thermistor is automatic.
F3
Malfunction
of outdoor
ambient
temperature
thermistor
Outdoor
ambient
temperature
thermistor
Malfunction outdoor ambient temperature thermistor
is detected when there is a short circuit or an
open circuit in the outdoor ambient temperature
thermistor for more than 5 sec. The system will
be shut down. The reset for the malfunction of
condenser temperature thermistor is automatic.
F4
Malfunction
of Exhaust
Temp.
Sensor
Exhaust
temperature
sensor
If the exhaust temperature sensor is detected
of open circuit 5 seconds successively after the
compressor is started for 2 minutes or short circuit
5 seconds successively at any time .The system
will be shut down. After the fault is eliminated, the
system can automatically resume to operation.
oN
Normal
operation
Unit operating
normally or
in standby
mode.
None required.
H1
Defrost
operation
Unit operating
in defrost
None required.
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