Installation manual

Supplied By www.heating spares.co Tel. [phone]
14
B005
1.5 Access to Hydraulic
Circuits
Fig. 1.35
U
Removing the gas valve
1.
Disconnect all the cables from the solenoid and
modureg;
2. Remove the spark generator;
3. Release the top nut “S” using a 30 mm open ended
spanner (see fig. 1.31) ;
4. Remove the screws “T” from the bottom of the gas
valve pipe (see fig. 1.32) .
Attention!! The gas valve is connected with the two pipes
(as shown) with an O-ring connection.
U
Important! Before any component is removed, the boiler
must be drained of all water.
Removing the D.H.W. (secondary)
exchanger
1. Remove the screw “U” (see fig. 1.35) ;
2. Push the exchanger towards the rear of the
boiler, lift upwards and remove out of the
front of the boiler;
3. Before replacing the exchanger ensure that
the O-rings are in good condition and
replace if necessary.
Fig. 1.31
Fig. 1.32
Fig. 1.33
S
T
T
Fig. 1.34