4. Usage
10.
Backup Heating
◆
AH---Auxiliary Heater inside the indoor unit
◆
HBH---Heating Back-up Heater
◆
HWTBH---Hot Water Tank Back-up Heater
10.01) Backup Heating Sources For Heating
Set whether the system has HBH (Heating Back-up Heater).
10.02) Priority for Backup Heating Sources (HBH)
Set the priority of HBH compared with unit AH (Auxiliary Electric Heater inside the indoor unit).
When unit works in heating, if heat pump unit can't provide enough power, it will turn on AH or HBH
(which set to have the higher priority) automatically. If after AH or HBH is working, that the total
output power is still not big enough, unit will turn on the lower priority Backup Heating Source also.
10.03) Backup Heating Source for Sanitary Hot Water
Set whether the system has HWTBH (Hot Water Tank Back-up Heater).
10.04) Priority for Backup Heating Sources (HWTBH)
Set the priority of HWTBH compared with unit AH (Auxiliary Electric Heater inside the indoor unit).
When unit works in hot water, if heat pump unit can't provide enough power, it will turn on AH or
HWTBH (which set to have the higher priority) automatically. If after AH or HWTBH is working, that
the total output power is still not big enough, unit will turn on the lower priority Backup Heating Source
also.
10.05) External Heating Source Start Accumulating Value
Accumulated Value between operation time VS set temp. to start other heating source for heating
operation.
94
