36
1.
The system must be visually checked for soundness;
2. Fill the condensate trap with water, by pouring
1
/
2
litre of water into the exhaust flue connector (see
Fig. 43). N.B. In the event of a prolonged period of
system shutdown, the condensate trap should be
filled before any renewed use. A shortage of water
in the trap could possibly lead to a temporary
leakage of fumes into the air, until it refills itself;
3. Ensure that the flue is fitted correctly;
4.
Allow the central heating system to warm up and adjust
the central heating temperature control knob
30
(Fig.1),
check the burner modulates between the high and low
settings;
5. Range rate the thermal power for central heating as
detailed in Section 14.5. To adjust the maximum heating
power it is necessary to follow the steps in Section 14.5
Menu 4 (page 41). and adjust in relation to the chart on
Page 36 (Fig. 44);
6.
Check the gas rate;
7.
Record the finding in the Benchmark Commissioning
Checklist (Page 60);
8. Balance the central heating system until all return
temperatures are correct and equal;
9.
Turn the boiler off by pressing the On/Off button
26
(Fig.1) to OFF, disconnect the gas pressure gauge,
retighten the screw and relight the boiler;
10. Re-examine the central heating system and gas supply
for soundness;
11. If external controls have been disconnected, reconnect
and test;
12. Refit the boiler casing.
14. Commissioning and testing
(continued)
14.10 Operational checks
Fig. 43
14.11 Instructing the end user
1. Hand over these instructions and explain how to use the
time clock and room thermostat (if fitted) and explain how
to register the guarantee;
2. Show the end user how to switch the appliance off
quickly, and indicate the position of the electric supply
isolator;
3. Inform the end user of the location of all drains, isolating
valves and air vents;
4. Explain how to turn the appliance off for both short and
long periods and advise on the precautions necessary to
prevent damage in the event that the appliance is
inoperative when freezing conditions occur;
5. Instruct the end user on the correct procedure for
checking and refilling the boiler;
6. Finally advise the end user that, for continued safe and
efficient operation, the appliance must be serviced by a
competent person at least once a year and the service
logged in the Service Interval Record (Page 61).
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 ...
