Installation, use and maintenance guide
COMPACT S18 EVO
Page 12
ENG
1
3
2
4
5
6
W
X
K
Y
Z
5 – HYDRAULIC CONNECTION
5.1 HYDRAULIC DIAGRAM
The circulating pump installed in the appliance has the following features:
ATTENTION: flexible tubing with a minimum length of 70 centimetres must be used for all connections, as this
will facilitate moving the appliance for servicing.
ATTENTION: a connection must be made between the safety valve and the outlet to prevent damaging
materials surrounding the boiler when the valve is activated.
ATTENTION: To avoid continual startups and shut offs, the size of the plant must be such as to guarantee power
absorption that is not less than the power generated by the boiler running at reduced power.
1
System circulating pump
6
2 l closed expansion tank
2
Automatic relief valve
W
System drain/refill
gate valve
3
Boiler water temperature sensor
X
Plant return
4
Reset thermostat bulb
K
Plant delivery
5
Pressure gauge 0 - 4 bar
Y
Safety valve 3 bar
