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Hitachi PC-ARFH1E Betriebshandbuch Und Installationsanleitung Seite 61

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◆ Boiler combination
  
Minimum ON time:
• Time that must pass before
stop boiler after being
switched ON
Minimum OFF time:
• Time that must pass before
start boiler after being
switched OFF
Wait time for DHW:
• Delay time to start Boiler for
DHW in case all conditions
allow Boiler to start after HP
has been started for DHW.
PMEN0602 rev.0 - 05/2023
Bivalent point:
• Boiler is allowed to operate in case ambient
temperature is below this value
Combination mode:
• Serial: Boiler operates in series with the heat-
pump. The boiler provides additional peak load
capacity and works together with the HP
• Parallel: Boiler operates in parallel with the
heat pump. The boiler provides the full heating
requirements. In case Boiler is ON, HP is not
allowed to operate
Supply setting offset:
• Setting offset for Boiler. Higher values imply earlier
stoppage of Boiler and vice versa.
Waiting time:
• Delay time to start Boiler in case all conditions
allow Boiler to start after HP has been started for
Space Heating
DHW by boiler:
• Control to allow heat DHW by means Boiler
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