Chaffoteaux & Maury Minima HE System 24 Nat - Operational Checks; Instructing the End User

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
t
ime 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
i
noperative 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).