Starting The Appliance - Worcester 27i System Compact Installation, Commissioning And Servicing Instructions

COMMISSIONING
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
5.4

STARTING THE APPLIANCE

CAUTION: RUNNING THE APPLIANCE
▶ Never run the appliance when the appliance/system is
empty or partially filled.
1 2
Fig. 56 Control panel
Key to figure 56
1 Spanner/return button
2 Service engineer symbol
3* Eco button*
4 Reset button
5 Boiler display
6 Central heating temperature control
7 Scroll up button
8 OK - Select/confirmation button
9 Scroll down button
10 Operation and fault indicator (blue)
11 Position for optional programmer
12* Hot water temperature control*
13 Diagnostic port (Worcester engineers only)
14 System pressure gauge
* Only operational when the optional integral diverter valve is
fitted. See page 8 for more information on the DHW control.
32
3 4 5 6 7 8 9 10 11 12 13 14
Switching the appliance on/off:
▶ Turn on the mains power supply, initially the "Boiler start up screens"
will be displayed (refer to figure 57).
▶ Turn on any external controls
▶ Set the thermostatic radiator controls to maximum temperature
▶ Set the digital clock/programmer to continuously ON and the room
thermostat to maximum temperature
Turn the boiler CH temperature control (6) to maximum. The "burner on"
flame symbol will be shown on the boiler display.
If the boiler fails to light, a flashing fault code will be displayed.
NOTICE: RESET
▶ Do not press the blue operation/fault diagnostic
indicator (10) to reset the boiler.
To reset the boiler, press the reset button (4) , the tick symbol will be
displayed briefly for a successful reset.
Greenstar i System Compact - 6 720 807 726 (2013/05)