Hitachi ADVANCED COLOR PC-ARFH2E Manuel D'installation Et D'utilisation page 108

◆ Hot water tank optional functions
Circuit Pump: By using this output, user can heat all the water inside DHW piping system.
Output must be configured at the I/O and sensors menu. (see section
and Sensors configuration").
• Deactivated.
• Demand: Enable DHW recirculation.
• Anti Legionella: Allows DHW recirculation while anti legionella is active.
• Timer: A timer can be programmed in order to start or stop the water recirculation.
DHW Boost:
To force a one-time heating of the DHW tank up to the temperature set as DHW Boost
temperature.
This feature is useful to cover exceptional demand of DHW.
• Trigger type: Push (favourite button), Open (NC) or Closed (NO). Set input 6 for DHW
Boost (for trigger type open/closed). (see section
configuration")
• Boost setting: DHW temperature setting for the Boost function.
Recirculation timer:
• Frequency: Allows to select when timer is applied (Everyday, weekend, workday).
• Starting Time: When the water pump circulation starts.
• Stopping Time: When the water pump circulation stops.
• Operation: In case of ON, means that water pump is always ON between "Starting Time" and
"Stopping Time". In case it is set to Timer, Recirculation pump is ON during "ON Time" after
being OFF during "OFF Time" within Starting Time and Stopping Time.
• ON Time: On time period of Recirculation pump.
• OFF Time: Off time period of Recirculation pump.
PMEN0597 rev.1 - 06/2023
"1.18.11 Inputs, Outputs
"1.18.11 Inputs, Outputs and Sensors
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