Hitachi ADVANCED COLOR PC-ARFH2E Manuel D'installation Et D'utilisation page 93

◆ Electrical heater
Operation:
• Starting: Space Heating electric Heater is switched ON in case of low water temperature
and low ambient temperature to provide extra capacity to HP.
• Backup: Space Heating Electric Heater is switched ON in case of low ambient temperature
(below Bivalent point) in order to provide extra capacity to HP at coldest days of winter.
Reset factor:
Used to guarantee setting temperature achievement without surpassing its value. Higher
values imply less utilization of heater.
Proportional band:
Control to determine how fast setting temperature is going to be reached. Higher values imply
fast achievement of water setting point and therefore higher utilization of heater.
Waiting time:
Delay time to start Electric Heater in case all conditions allow Electric Heater to start after
HP has been started. Only in case of Backup option.
Maximum heater step: (Only in case of Backup option).
To limit the maximum heater step it can be switched ON regardless of the real Heater demand.
PMEN0597 rev.1 - 06/2023
Bivalent point:
Electric heater is enabled to operate in
case ambient temperature goes below this
value. Only in case of Backup option.
Supply setting offset:
Setting offset for electric Heater. Higher
values imply earlier stoppage of electric
heater and vice versa. Only in case of
Backup option.
Inter stage time:
Time of Electric Heater phase overlapping
when there is switch ON/OFF transition
from/to phase 1 to/from phase 2. Only in
case of Backup option.
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