25
912.807.1 - GB
INSTALLATION AND OPERATING MANUAL
0904_2503 / CR_0096
Figure 14 B: DHW potentiometer with system water Sys T = 75°c
SELECTORS 1 – 2 – 3 : USER MODULE CONFIGURATIONS
Model selection table
model
Switch 1
Switch 2
Switch 3
RA
OFF
OFF
ON
RA2Z
ON
ON
OFF
Make sure the switches are in the correct position for the model
Figure 14 C: Model switches
0703_2304 / CR_0087
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 first quarter
of its travel; the anti-freeze function remains.
The electronic board is fitted 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).
RA2Z
RA
HEATING POTENTIOMETER
