Specifications

l Fkrcorinection
2 Down draught diverter
3 Sensorof
overheat cut-off
device
4 Mainheatexchanger
4a
Combustion
chamber
5
Main hrmer
6 Gasgovernor
7 Flowswitch
8
Differential valve
9
DC
solenoid
10 Fbwthermometer
11 Pump
with
automatic air vent
12 Pressuregauge
\a-
l
air
vent
points
Terminal
box
Switch
board
(main
switch,
heating
switch, domestic hot water switch)
Domestic heat
exchanger
Flowthermostat
Pressure relief valve
Service cock
Gas service cock
Overflow
(optional
extra)
Push
button start
Push button stop
Pilot burner
Piezo unit
13
14
15
17
'18
19
20
21
22
23
24
25
o
o
'6
=
o