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COMMISSIONING
5.4
STARTING THE APPLIANCE
NOTICE: Never run the appliance when the appliance/
system is empty or partially filled.
SWITCHING THE APPLIANCE ON/OFF:
1. Turn on mains power supply.
▶ Turn on any external controls.
▶ Set the thermostatic radiator controls to maximum temperature.
▶ Set the clock/programmer to continuously ON and the room
thermostat to maximum temperature.
10
9
8
7
3
4
2
5
6
1
6
max
Fig. 45 Control panel
[1]
Display
[2]
Reset button
[3]
Not used
[4]
Not used
[5]
ON/OFF and fault indicator (Blue)
[6]
Central heating temperature control
[7]
Performance test button
[8]
Service button
[9]
Burner indicator (Green)
[10] ON/OFF button
▶ Press button (10) and the power on indicator (5) illuminates BLUE.
After a few seconds the display will show the flow temperature.
2. Turn the CH temperature control (6) to maximum. The burner on
indicator (9) illuminates GREEN when the burner has lit.
The boiler runs for 15 minutes at minimum heating
output to fill the condensate trap, the display (K)
alternates between "-II-"and the flow temperature. This
occurs every time the mains supply has been
interrupted.This could take longer than 15 minutes if
high output is demanded.
3. If the boiler fails to light the BLUE power indicator (5) and reset button
(2) will flash alternately. To reset press and hold the reset button (2)
for 2 seconds. The boiler will be reset.
CAUTION: DO NOT PRESS POWER INDICATOR (5) TO
RESET BOILER.
5.5
Water treatment
NOTICE: Debris from the system can damage the boiler
and reduce efficiency. Failure to comply with the
guidelines for the use of water treatment with the
appliance will invalidate the appliance warranty.
Ensure that the system has been cleaned as on 8 of these instructions.
FLUSHING (Central Heating):
1. Switch off the boiler.
▶ Open all drain cocks and drain the system while the appliance is hot.
2. Close drain cocks and add a suitable flushing agent at the correct
strength for the system condition in accordance with the
manufacturer's instructions.
30
1
2
reset
3
eco
4
5
3. Run the boiler/system at normal operating temperature for the time
stated by the manufacturer of the flushing agent.
4. Drain and thoroughly flush the system to remove the flushing agent
and debris.
INHIBITOR (Central Heating):
5. Check drain cocks are closed and all radiator valves are open before
adding a suitable* inhibitor (or combined inhibitor/anti-freeze if the
system is exposed to freezing conditions) to the heating system
water in accordance with the manufacturers instructions.
6. Fill via a WRAS approved filling loop to between 1 and 2 bar.
7. Vent all radiators; retighten vents when complete.
8. Vent the primary side of the hot water tank.
▶ For sealed systems re-pressurise if necessary.
▶ Set all controls to maximum.
▶ Record the date when the inhibitor was added to the system on the
guarantee card.
▶ The concentration level of inhibitor in the system
should be checked every 12 months or sooner if
system content is lost.
▶ The addition of sealing agents to the system water is
not recommended as this can cause problems with
deposits left in the heat exchanger.
* compatible with aluminium. The pH value of the system water must
be less than 8 or the appliance guarantee will be invalidated.
Water treatment products
Suitable water treatment products can be obtain from the following
manufacturers:
FERNOX
0870 601 5000 / www.fernox.com
SENTINEL
0800 389 4670 / www.sentinel-solutions.net
5.6
Commissioning
CHECKING GAS INLET PRESSURE:
The inlet pressure to the appliance must be checked using the following
procedure:
SETTING THE BOILER TO MAXIMUM:
1. Press performance test button (7) for ten seconds and set
temperature control (6) to maximum.
• The performance test button (7) will illuminate continually.
10
9
8
7
3
4
2
5
6
1
6
max
Fig. 46 Control panel
[1]
Display
[2]
Reset button
[3]
Not used
[4]
Not used
[5]
ON/OFF and fault indicator (Blue)
[6]
Central heating temperature control
[7]
Performance test button
[8]
Service button
[9]
Burner indicator (Green)
[10] ON/OFF button
1
2
reset
3
eco
4
5
6 720 815 723 (2015/05)
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