Schematic Diagram - ACV Solo 18 Installation, Operating And Servicing Instructions

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
A. - Heating temperature setting guidelines without external sensor
- Maximum heating temperature limit with external sensor
- The thermostat is positioned on
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).
664Y4200 • F
b
, the heating circuit is deactivated
optional equipment
code description
10800018 ACV 22 Room thermostat
10510100
Outside temperature sensor, 12 kΩ — AF120
Safety thermostat RAM 5109:
10510900
Compulsory to protect all floor heating circuits.
Sensor NTC 12 kΩ:
5476g003
Monitors the external domestic hot water tank.
EN • 22
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.