51
18.3 Access to the Water Circuit
Important!
Before any component is removed, the boiler must be drained of all water.
18.3.1 Drain down
Close the flow and return isolating valves and open the pressure relief valve.
18.3.2 Removing the Central Heating return body
1.
Carry out step
1.2.1
and
1.2.3
;
2.
Remove the clip “
Q1
” from the by-pass tube (
Fig. 84
);
3.
Remove the clips “
Q2
” and “
Q3
” from the heating return and the pump (
Fig. 85 & 86
);
4.
Remove the two screws “
P1
” (
Fig. 84
);
5.
Remove the Central Heating return body by pulling it toward you (
Fig. 87
);
6.
Reassemble in reverse order;
P1
Q3
Q2
Fig. 83
Fig. 86
Fig. 87
Fig. 84
Fig. 85
Q1
Summary of Contents for COMBI A 24 MFFI
Page 19: ...19 1 2 A A Fig 14 Fig 16 Fig 13 11 Installing the Boiler continued Fig 15 P P ...
Page 22: ...22 Fig 21 Fig 22 Fig 23 ...
Page 31: ...31 WIRING DIAGRAM FOR CONNECTION TO AN OPEN VENTED CYLINDER DIAGRAM B ...
Page 32: ...32 WIRING DIAGRAM FOR CONNECTION TO AN MTS UNVENTED CYLINDER DIAGRAM A ...
Page 61: ...61 24 Benchmark Commissioning Checklist ...
Page 62: ...62 25 Service Interval Record ...
Page 63: ...63 ...
