Hitachi ADVANCED COLOR PC-ARFH2E Manuel D'installation Et D'utilisation page 95

Panel overheat temperature:
• Maximum panel operation temperature at which Solar Pump is set to off in case Panel sensor
reads a temperature above this value in order to protect system.
• In case that the solar pump is stopped due to panel overheat temperature, the YUTAKI
unit sets solar overheat output to high state provided that this function has been setup as
"1.18.11 Inputs, Outputs and Sensors configuration"
described in
Panel antifreeze temperature:
Minimum Solar panel temperature at which Solar Pump is switched ON in order to protect
system against frost formation at pipes due to low ambient temperature.
PMEN0597 rev.1 - 06/2023
Panel minimum temperature:
Minimum temperature of the solar
Panel to allow Solar operation
1
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