Carrier 42QHC024D8S Series - Page 60

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VOLTAGE
No limit
VOLT_LTM_FREQ1_ADD
VOLT_LTM_FREQ2_ADD
Note: if the low voltage protection occurs and not resumes within 3min, it will keep the protection always
after restart the machine.
17.5.4 Compressor current limit protection
Temperature interval.of current limit is same as range of T4 limited frequency.
Cooling mode:
T4
CoolZone5
CoolZone4
CoolZone3
CoolZone2
CoolZone1
Heating mode:
T4
HeatZone4
HeatZone3
HeatZone2
HeatZone1
17.5.5 Indoor / outdoor units communication protection
If the indoor units cannot receive the feedback signal from the outdoor units for 2 minutes, the AC will stop
and display the failure.
17.5.6 High condenser coil temp. protection.