Carrier ALLEGRO 42HQE009N User Manual

15
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
9.3 Systematic functions
Remote receiving
Testing and forced run
Position set for indoor unit wind vane
LED displaying and alarm
On or off Timer
Protection for the compressor
Current protection
High temperature protection of indoor heat exchanger at heating mode
Auto defrosting and heating recovery at heating mode
Anti cold air at heating mode
Anti frozen at heating mode
9.4 Protection
9.4.1 The compressor functions protection with a delay of three minutes.
9.4.2 Sensor protection at open circuit and breaking disconnection
9.4.3 Temperature Fuse break protection
9.4.4 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High
Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failure
information and can’t returns to normal operation automatically.
9.4.5 Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops
and LED displays failure information and can’t returns to normal operation automatically.
9.4.6 The current protection of the compressor
Condition Indoor fan Compressor Outdoor fan Remark
I< I
RESTORE
On On On
On On Off Heating mode I
RESTORE
<I< I
FAN
Low speed On On Cooling mode
I
FAN
<I<I
5MIN
Off Off After 5 Minutes
Current up
I
5MIN
<I< I
3SEC
Off Off After 3 Seconds
I
5MIN
<I< I
3SEC
Off Off After 3 Seconds
I
FAN
<I<I
5MIN
Off Off After 5 Minutes
On On Off Heating mode I
RESTORE
<I< I
FAN
Low speed On On Cooling mode
Current down
I< I
RESTORE
On On On
If compressor turns off for continuously 4 times due to current protection in 5 minutes from
Compressor On, the unit stops and LED displays failure information and can’t returns to
normal operation automatically.
9.5 Fan-only mode

Carrier ALLEGRO 42HQE009N Specifications

General

Brand	Carrier
Model	ALLEGRO 42HQE009N
Category	Air Conditioner
Language	English