Supplied By www.heating spares.co Tel. 0161 620 6677
20
Part No. 5000893
h. Test for gas soundness as follows:-
- Ensure the water service cock is in the
OFF position. This will ensure water
cannot flow and open the automatic
valve.
- Turn ON the gas, purge and light the
pilot, this will pressurise the burner
supply pipe.
- Test the gas supply to flame safety
device and burner supply pipe above the
flame safety device for gas soundness
using leak detection fluid.
j.
Re-assemble remaining parts and
ensure the water service cock is in the
ON position.
6.6 Pilot Viewing Glass & Seal
a. Complete steps a., b. and c. of Section
6.2.
b. The viewing glass and seal are fixed to
the inside of the outer case by 2 metal
tabs. Bend back the tabs and remove
the glass and seal. Secure the new
glass and seal to the outer case by
bending over the 2 spare straight tabs.
6.7 Energy Cut-Off Device
a. Gain general access - See 6.2.
b. Disconnect the energy cut-off leads
from the interrupter located on the
underside of the chassis.
c. Remove the 2 screws securing the
energy cut-off device to the heating unit
(located top front left).
d. Pull the leads complete with grommets
up through the chassis base.
e. Fit the new energy cut-off device which
comes complete with grommets.
Replacement Of Parts
Fig. 30
Fig. 31
Fig. 32
