Hitachi PC-ARFH1E Manual página 67

◆ Emergency Operation
Mode:
Selection of the emergency operation
mode:
• Manual: Emergency operation is active
when is manually enabled (by DSW4
pin 4 ON). The emergency mode uses
the heater (space heating or DHW) to
provide the required heating.
• Automatic: Emergency mode operates
when there is an event of outdoor
unit failure and Demand ON of space
heating (enabled) or DHW (enabled).
1.8.2.10 Inputs, Outputs and Sensors configuration
Auxiliary sensors:
There are 7 available auxiliary
sensors to set.
◆ List of available inputs:
• Disabled
• Demand ON/OFF (by default in input 1): Consider both Circuit 1 and Circuit 2 in Demand ON
when the signal is ON.
• Demand ON/OFF C1: Consider Circuit 1 in Demand ON when the signal is ON.
• Demand ON/OFF C2: Consider Circuit 2 in Demand ON when the signal is ON.
• Power Meter 2: To count any pulse received from the power meter 2 and sent to central control
energy consumption calculation.
• ECO C1 + C2: Switch both Circuit 1 and Circuit 2 to ECO mode when input is closed.
• ECO C1 (by default in input 2, if there is circuit 1 in the installation): Switch Circuit 1 to ECO
mode when input is closed.
• ECO C2: Switch Circuit 2 to ECO mode when input is closed.
• Forced Off: Forbid DHW, space heating and space cooling.
• Smart Act / SG1 (Fixed in input 5 if smart action is enabled): To active Smart Function.
PMEN0602 rev.0 - 05/2023
Space Heating:
Enable or disable emergency
operation for space heating.
Only available in case "Heating
source" on "1.8.2.7 Complementary
Heating configuration"
contains
"Electrical heater or boiler" option
DHW:
Enable or disable emergency
operation for DHW. Only available
when electrical heater for DHW is
enabled (by DSW).
Inputs:
The system allows to set 7
inputs depending on the
operations and preferences
of the installation
Outputs:
There are 8 available outputs
to set. There are conditions
of setting depending on the
installation.
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