Worcester Greenstar Heatslave II 12/18 Installation, Commissioning & Servicing Instructions page 28

Commissioning
Smoke readings may be inaccurate until the smoke from
burning organic binder in the access door insulation has
ceased.
Fig. 51
Control board:
[1] Spanner/return button
[2] Reset button
[3] ECO button
[4] Boiler LCD display
[5] Central heating temperature control
[6] Scroll up button
[7] OK - Select/confirmation button
[8] Scroll down button
[9] Operation and fault indicator (blue)
[10] Position for optional programmer
[11] Hot water temperature control
[12] Diagnostic port
[13] System pressure gauge
[14] Burner service mode button
Switching the appliance on/off
▶ Turn on the mains power supply, initially the "Boiler start up screens"
will be displayed (see figure 52:)
▶ Turn on any external controls.
▶ Set the thermostatic radiator controls to maximum.
▶ Set the clock/programmer to continuously ON and the room
thermostat to maximum temperature
The blue operation/fault indicator light will be illuminated when
there is a demand for heat or hot water.
▶ Turn the boiler CH temperature control [5] to maximum.
If the boiler fails to light, a flashing fault code will be displayed.
Do not press the blue operation/fault indicator [9] to
reset the boiler.
▶ To reset the boiler, press the reset button [2], the "tick"symbol will
be displayed briefly for a successful reset.
Boiler start up screens
On initial start up, the following screens are displayed:
1. All the symbols are displayed for approximately 2 seconds.
2. The control will run an internal test.
3. When the internal test has been successfully performed, this screen
is displayed:
▶ The boiler is in stand-by.
▶ The flow temperature sensor indicates the primary temperature from
the heat exchanger (not the target set point).
4. If no adjustments are made for 30 seconds, the back light goes off.
▶ As soon as an adjustment is made, the screen will light up and the
relevant information will be displayed.
28
1
2
3
Fig. 52 Start up screens
Screen display
All possible screen symbols are displayed briefly during start up.
Extended diagnostic features have rendered the greyed out symbols not
required for the operation of this appliance.
1 2 3
Fig. 53
[1] Central heating symbol
Displays this symbol during CH demand.
[2] Hot water symbol
Displays this symbol during DHW demand (DHW flow rate >
2 litres per minute) and tank reheat.
[3] Weather Compensation active symbol
Displays this symbol only if a Weather Compensation sensor has
been fitted to the appliance and is active.
[4] Alert symbol
Displays with the boiler status code and diagnostic code during a
fault condition.
[5] Service mode symbol
Displays when in the service menu.
Greenstar Heatslave II External
4 5 6 7
6 720 805 209-39.1TL
9 8
ErP - 6 720 813 345 (2014/09)