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TS = Domestic hot water (DHW) adjustment potentio-
meter
Adjusts domestic hot water temperature.
TS temperature range: 35 ÷ 65°C
Factory setting: 45°C
Attention: the DHW function is disabled in the rst quarter
of its travel; the anti-freeze function remains.
The electronic board is tted with a special function that
lowers the set DHW temperature if the temperature
of the system water falls below the set value (Ts =
Sys T – 5°C).
SELECTORS 1 – 2 – 3 : USER MODULE CONFIGURATIONS
model
RA
RA2Z
Make sure the switches are in the correct position for the model
INSTALLATION AND OPERATING MANUAL
Model selection table
Switch 1
OFF
ON
RA
RA2Z
Figure 14 C: Model switches
HEATING POTENTIOMETER
Figure 14 B: DHW potentiometer with system water Sys T = 75°c
Switch 2
OFF
ON
25
Switch 3
ON
OFF
912.807.1 - GB
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