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6.2
Filling the system
Open vented systems:
▶ Ensure all system and boiler drain points are closed.
▶ Open all radiator valves.
▶ Turn on the water supply to the system header tank and allow the
system to fill.
Sealed systems:
▶ Fill the system via a WRAS approved filling loop to 1 bar then turn the
valve anti-clockwise to close.
Opened vented and sealed systems:
▶ Air will be removed from the boiler heat exchanger via the Auto Air
Vent mounted on top of the heat exchanger.
▶ Vent all radiators and the primary side of the hot water cylinder,
tighten when completed and check the system and correct any leaks.
Sealed systems only:
▶ If required increase system pressure back to 1 bar.
▶ Isolate and remove filling loop connection to system.
6.3
Water treatment
NOTICE: SOFTENED WATER
▶ ARTIFICIALLY SOFTENED WATER MUST NOT BE
USED TO FILL THE CENTRAL HEATING SYSTEM.
ENSURE THAT THE SYSTEM HAS BEEN CLEANED AS ON PAGE 11 OF
THESE INSTRUCTIONS.
Flushing (Central Heating):
▶ Switch off the boiler.
▶ Open all drain cocks and drain the system while the appliance is hot.
▶ Close drain cocks and add a suitable flushing agent at the correct
strength for the system condition in accordance with the
manufacturer's instructions.
▶ Run the boiler/system at normal operating temperature for the time
stated by the manufacturer of the flushing agent.
▶ Drain and thoroughly flush the system to remove the flushing agent
and debris.
Inhibitor (Central Heating):
▶ Check drain cocks are closed and all radiator valves are open before
adding a suitable inhibitor compatible with aluminium (or combined
inhibitor/anti-freeze if the system is exposed to freezing conditions)
to the heating system water in accordance with the manufacturers
instructions.
The pH value of the system water must be less than 8 or
the appliance guarantee will be invalidated.
▶ Fill system as described in section 6.2.
▶ Set all controls to maximum.
▶ Record the date when the inhibitor was added to the system.
NOTICE:
▶ The concentration 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.
Water treatment
Suitable water treatment products can be obtained from the following
manufacturers:
FERNOX
0870 601 5000 - www.fernox.com
SENTINEL
0800 389 4670 - www.sentinel-solutions.net
Greenstar Ri Compact
ErP
6720813282 (2015/07)
6.4
Starting the appliance
CAUTION: RUNNING THE APPLIANCE
▶ Never run the appliance when the appliance/system
is empty or partially filled.
1
2
3
Fig. 45 Control panel
Switching the appliance ON/OFF:
▶ Turn on the 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
1. The operation and fault Indicator (2) illuminates blue.
1
Burner ON indicator (Green)
2
Boiler operation and fault indicator (Blue)
3
Temperature control
Table 21 Control panel legend
2. Turn the boiler CH temperature control (3) to maximum. The burner
on indicator (4) illuminates GREEN when the burner has lit.
▶ If the boiler fails to light and the boiler goes to flame lock-out, the
BLUE indicator (2) will flash.
NOTICE: RESET
▶ Do not press the blue Operation/Fault indicator to
reset the boiler.
3. To reset the lockout; turn the boiler thermostat control to minimum,
then past minimum where the control knob will click at reset position.
Wait five seconds then turn to maximum. The boiler will be reset.
6.4.1
Setting the appliance to service mode
For checking the air/gas ratio, inlet pressure and gas rate, the boiler will
have to be switched into maximum and minimum output. The service
mode can be accessed as follows:
1. Undo the two screw catches.
2. Pull the catches down to release the control panel.
3. Pull the bottom of the panel forward.
4. Lower the control panel to the service position.
5. Release the two screws securing the Installer access cover.
6. Remove the installer access cover.
COMMISSIONING
min
reset
max
31
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