Potterton PROFILE LPG 100e Installation And Servicing Instructions page 25

SERVICING INSTRUCTIONS - Page 25
Good seal around the capillary. Ensure that the capillary is
secure in the clips provided. Refer to FIG. 2.
9. Follow the full commissioning procedure as detailed in the
COMMISSIONING section of these instructions. Page 18.
GRAVITY DHW/PUMPED CENTRAL HEATING
NOTE: If the boiler is fitted with a right hand flue, remove flue elbow
as described in Section 1 preparing the Boiler operations
F, G, page 22.
7. Disconnect the fan supply leads from the connector adjacent to
the fan.
8. Remove the screws securing the fan mounting plate leaving in
place the three screws identified with a red circle or adjacent
'F' mark in Fan Plate. Remove mounting plate complete with
fan.
9. Remove spring clip retaining overheat bulb to return pipe.
10. Remove two split grommets one at the top right hand side of
the casing and one in the base of the boiler.
11. Withdraw bulb through the holes.
12. Replacement is the reverse of removal. Ensure the rubber
grommets make a good seal around the capillary. Ensure that
the capillary is secure in clips provided. Refer to Fig. 2.
13. Follow the full commissioning procedure as detailed in the
COMMISSIONING section of these instructions. Page 18.
BOILER THERMOSTAT
4. Remove door by undoing the two lower fixing screws and lifting
door off the two upper hinge brackets.
5. Disconnect the fan supply leads from the connector adjacent to
the fan.
6. Remove the screws securing the fan mounting plate leaving in
place the three screws identified with a red circle or adjacent
'F' mark in Fan Plate. Remove mounting plate complete with
fan.
7. Disconnect the electrical connections as follows:-
two white from rear of thermostat.
Refer to FIGS. 27, 28.
8. Pull off the outer thermostat knob.
9. Remove inner thermostat post by undoing the two securing
screws.
10. Remove the nut securing the thermostat to the control box.
11. If the boiler is fitted with a left hand flue, remove the flue elbow
as described in Section 1 'Preparing the Boiler'
operations F, G, Page 22.
12. Remove the clip securing the thermostat bulb to the flow pipe.
Supplied By www.heating spares.co Tel. 0161 620 6677
13. Remove the split grommet in the base of the boiler and the split
grommet in the fan chamber. Feed the capillary and bulb
through the holes.
14. Replacement is the reverse of removal. The bulb of the new
thermostat should be coated with heat conducting paste.
Ensure the rubber grommets in the base of the boiler and the
fan chamber make a good seal around the capillary.
15. Ensure that the capillary is secure in the clips provided. NOTE
polarity of electrical connections on thermostat is not important.
Follow the full commissioning procedure as detailed in the
COMMISSIONING section of these instructions. Page 18.
GRAVITY HOT WATER/PUMP OVER-RUN THERMOSTAT. Refer
to FIG. 2.
4. Remove door by undoing the lower fixing screws and lifting
door off the two upper hinger brackets.
5. Disconnect the electrical connections as follows:-
2 red wires from terminal NO or 4
2 brown wires from terminal NC or 2
1 white and 1 blue wire from terminal C or 3
6 Remove the screws securing the thermostat to the control box.
7. Remove the split pin retaining the thermostat bulb in the pocket
and withdraw the bulb.
8. Remove the split grommet in the base of the boiler. Feed the
capillary and bulb through the hole.
9. Replacement is the reverse of removal. The bulb of the new
thermostat should be coated with heat conducting paste.
Ensure the rubber grommet makes a good seal around the
capillary.
10. Ensure that the capillary is secure in the clips provided. Follow
the full commissioning procedure as detailed in the
Commissioning section of these instructions. Page 18.
SIGHT GLASS
WARNING: GREAT CARE SHOULD BE TAKEN WHEN
HANDLING AND DISPOSING OF A BROKEN SIGHT GLASS.
3. Remove door by undoing the lower fixing screws and lift door
off the two upper hinge brackets.
4. Remove three M4 nuts from sight glass retainer and remove
sight glass assembly, see above.
5. Replacement is the reverse of removal. Taking care that the
clear circle in the sight glass lines up viewing hole in
combustion chamber door. NOTE new gaskets must be used
when sight glass is fitted.
Publication No. 559876/0296