Ravelli HRV 140 Silhouette, Use And Maintenance Manual

Page: 40 / 76

Use and maintenance manual HRV Silhouette
Pag.40
Rev.0 10/05/2021
Diagram 2 (buffer tank sensor)
Diagram 2 can be used in a system where there is a buffer tank that operates the heating system and, if pre-set, also DHW produc-
tion. In this system, the thermo-stove is directly connected to the buffer tank.
In this type of circuit, room temperature is managed by a control unit (not supplied) that controls the buffer tank and any zone valves.
The buffer tank temperature is controlled by the thermo-stove through a sensor.
The thermo-stove operates at maximum power to reach the set buffer tank temperature. When it is reached, the stove enters ECO
STOP mode and is automatically restarted if the buffer tank temperature falls below this value. The advantage of using a buffer tank
is that it regulates the operation of the thermo-stove. The buffer tank can be connected to other heat production units, such as solar
panels and/or gas boiler.
The diagram shown here is indicative and may not display all the components required to properly operate the system. Rely on a
qualified thermal technician for the hydraulic system design.
Stufa a Pellet
LEGEND
1- Pellet stove
2- Distribution manifolds
3- Radiators
4- Thermometer
5- Pressure gauge
6- Anti-condensation valve
7- Check valve
8- Group of direct distribution
9- Thermostatic distribution unit
10- Radiant panel (underfloor heating)
11- Shut-off valve
12- Thermostat
13- Expansion vessel (tank)
14- Pump station for solar thermal system
15- Solar thermal collector
16- Thermostatic mixing valve
17- Booster pump
18- Buffer tank pipe in tank with DHW
19- Motorised three-way valve with spring return
20- Gas boiler