C Working from above and below the heat exchanger, use a suitable flue brus
h and remove all of the deposits from between the fins.
D Refit the baffles into the outer two flueways.
E. Refit the inner draught diverter assembly, securing it with the four screws.
4. COMBUSTION CHAMBER INSULATION
Check the combustion chamber insulation for damage. If damaged replace as
described under replacement.
Page 20
SERVICING INSTRUCTIONS - Page 21
5. MAIN BURNER ASSEMBLY - REPLACEMENT
A Re-
fit the burner and gas control valve assembly into the boiler ensuring that the l
ocating pin on the rear of the burner engages correctly into the rear support br
acket.Ensure also that the sealing gasket beneath the burner mounting flange
is correctly positioned and a good seal obtained. Secure the assembly with tw
o screws. See
FIG. 19
.
B Re-
connect the two blue wires to the overheat thermostat. Polarity is not importan
t. Secure wires into rear of control panel by sliding retaining grommet into slot.
C Re-connect the electrical leads to the gas valve.
D Re-connect the gas supply at gas service cock and turn on gas.
E Refit the combustion chamber front panel.
6.
Follow the full commissioning procedure as detailed in the
COMMISSIONIN
G
section of these instructions.
7.
No further servicing is required on any other boiler mounted units. Repair is
by replacement.
8. FAULT FINDING
Refer to fault finding chart
FIG. 21
and wiring diagram FIGS.
14
,
15
9. REMOVAL/REPLACEMENT OF BOILER MOUNTED UNITS
Содержание CF 20/35
Страница 4: ......
Страница 5: ...Page 4 INSTALLATION DATA Page 5 FIG 2 GENERAL ARRANGEMENT...
Страница 6: ...Page 5...
Страница 17: ...FIG 4 OPEN VENTED FULLY PUMPED SYSTEM FITTED WITH A COMBIN ED FEED AND VENT Page 10 TECHNICAL DATA Page 11...
Страница 18: ...FIG 5 FULLY PUMPED SEALED SYSTEM FIG 6 OPEN VENTED GRAVITY DOMESTIC HOT WATER AND PUMPED CENTRAL HEATING SYSTEM...
Страница 43: ...Page 25...