mrcool 13seer r410 cond install manual 4web

Unitary Ducted Split AC & HP
31
0.5s
Circulating
Flash
Continuous
Light
Air discharge
high-
temperature
protection of
compressor
Exhaust over-
temperature
Protection
The exhaust temperature is higher
than 125°C for more than 5s, 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
5s, 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.
Continuous
Light
OFF
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 3
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
0.5s
Circulating
Flash
0.5s
Circulating
ash
Normal
operation
Unit operating
normally or
in standby
mode.
None required.
HEAT PUMP
Fault Display on the Dual 8 Numeral Tube of Outdoor Mainboard
Malfunction
code
Trouble case
Origin of
trouble signal
Measure
E1
Actuation
of high
pressure
switch
High pressure
switch
Abnormality is detected when the contact of the
high pressure switch opens for 3 sec. The system
will be shut down. The unit will report this fault. For
the rst two faults within 30 minutes, the unit can
be recovered automatically. If over three times, the
unit cannot be recovered automatically.
E3
Actuation of
low pressure
switch
Low pressure
switch
When the unit runs more than 4 minutes or does
not run, the low pressure switch opens for more
than3sec and the system will be shut down. The
unit will report this fault. For the rst two faults
within 30 minutes, the unit can be recovered
automatically. If over three times, the unit cannot be
recovered automatically.
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