EN • 22
664Y4200 • F
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optional equipment
code
description
10800018
ACV 22 Room thermostat
10510100
Outside temperature sensor, 12 kΩ — AF120
10510900
Safety thermostat RAM 5109:
Compulsory to protect all floor heating circuits.
5476g003
Sensor NTC 12 kΩ:
Monitors the external domestic hot water tank.
AF120
ACV 22
Before the boiler’s start up, an “Auto Set” is necessary so that the boiler
detects the DHW sensor.
To do this, turn the right button to “RESET” then start up the boiler by
pressing on the ON/OFF switch.
From the time that the display shows “SET” the “RESET” button can
be released.
A. - Heating temperature setting guidelines without external sensor
- Maximum heating temperature limit with external sensor
- The thermostat is positioned on , the heating circuit is deactivated
and the boiler is then in summer mode..
B. - Domestic hot water temperature setting.
(Prestige Excellence or as an option with an external domestic hot
water tank).
InstallatIon
InstallatIon of a sIngle heatIng
cIrcuIt regulated bY an acV 22 room
thermostat
SCHEmATIC DIAgRAm
The heating system (radiators or floor) is controlled by an On/Off
room thermostat.
In this configuration, the boiler constantly adapts its operation to the outdoor
temperature, if an outside temperature sensor is connected.
The circulator is triggered as soon as the room thermostat generates
a heat demand.
Advantages for the user:
- Comfort
- Maximum output
- Simplicity of the system
a
b
