Technical data

6
Shy 131b
3-Ignition module
4-Heating temperature adjuster
6-Pressure gauge
7-non-return valve
8-Expansion vessel
9-Pump
10 - Automatic air vent
11 - Burner
12 - Burner pressure test point
13 - Heat exchanger
14 - Gas valve
16 - Heating and hot water thermistor
17 - Ignition electrode
19 - Overheat thermostat
20 - Flame sense electrode
21 - Loss of water pressure switch
22 - Fan
23 - Air pressure switch
24 - Gas cock
A - Heating return
B - Cold water inlet
C - Heating flow
D - Domestic hot water flow
E - Gas supply
Diagram 5
INSTALLATION INSTRUCTIONS
BOILER SCHEMATIC
AB CD E
23
22
19
17
16
14
3
4
24
13
20
11
12
10
9
8
7
6
21