Hitachi PC-ARFH1E - Page 53

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PMEN0602 rev.0 - 05/2023
1
MENU
PC-ARFH1E FUNCTIONALITIES
Working Limits:
Limit for the temperature set-point
to prevent high or low temperatures
at Space Heang or Space Cooling:
• Maximum supply temperature
• Minimum supply temperature
Water calculaon mode:
Selecon of the water set point
for Circuit 1 or Circuit 2 (Space
Heang or Space Cooling).
• Disabled
• Points
• Gradient (only in heang mode)
• Fix
See detailed explanaon below.
Eco Oset Water seng:
Congure the oset water
temperature for the ECO mode
for Space Heang or Space
Cooling.
By using this funcon, current
water temperature seng
is reduced by the indicated
parameter.
• Range: -10 ~ 10
Mixing valve:
To control the second water
temperature (only for circuit 2).
Values are adjusted for the use
with the 2nd zone mixing kit
accessory ATW-2KT-05. It is highly
recommended not to change these
values.
In case of using a mixing kit dierent
from the ATW-2KT-05 congure the
following parameters:
• Proporonal band: 0 ~20 K (6.0 K
by default).
• Integral reset factor: 0.0 ~20 % (2.5
% by default).
• Running me factor: 10 ~250 sec
(140 sec by default).
• Over temperature oset
protecon: OFF, 3 ~10 ºC (5 ºC by
default).