Potterton Gold 24 HE, Инструкция по установке и обслуживанию

Страница: 30 / 68

9.0 COMMISSIONING
30
9.3 Checking
1. The gas valve is factory set and the burner
pressure cannot be measured as it is altered by
suction of the fan and modulates as demand on the
boiler alters. The gas supply pressure should be
20mb.
2. If necessary the gas rate may be checked after
running the boiler for 10 minutes with any other
appliances and pilot lights turned off.
3. Ensure that the integral timer and any external
controls are calling for heat, and the selector switch is
in the central heating and hot water position ( ).
The current boiler temperature is shown on the
display.
4. To check the gas rate it is necessary to set the
boiler to ‘Calibration Mode’.
5. Turn both temperature control knobs fully
anticlockwise, then quickly turn the DHW temperature
knob 1 /
4
clockwise twice and back fully anticlockwise
(Fig. 33).
6. The display will now alternate between ‘SF’ and
the current boiler temperature and both green LEDs
will flash (Figs. 34 & 35).
7. Turn CH temperature control knob fully clockwise.
As the knob is turned the display will change from ‘0’
to ‘00’ (Fig. 36) indicating maximum rate, then revert
to ‘P’ alternating with the current boiler temperature
(Figs 37 & 38).
8. A gas rate measurement may now be made.
Approximate values are:-
24 model - 2.6 m 3 /h
28 model - 3.1 m 3 /h
33 model - 3.6 m 3 /h
9. The ‘Calibration Function’ is active for 20 minutes
unless the maximum CH temperature is exceeded.
10. The function can be disabled at any time by
turning the DHW temperature knob.
Selector Switch
Display
2
1
0
4
3
bar
Reset
1
2
3
4
5
PM
7
8
9
10
11
12
1
2
3
4
5
A
M
7
8
9
10
11
12
GRASSLIN
0
Central Heating
Temperature Control
Domestic Hot Water
Temperature Control
Fig. 34
Fig. 35
Fig. 36
Fig. 37
Fig. 38
Central Heating
Temperature Control
Domestic Hot Water
Temperature Control
Fig. 33
x 2
Publication No. 5116282