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6.3.4
Boiler lockout
If the burner fails to establish a normal firing pattern or flame failure
occurs the flame monitoring photocell mounted in the burner body will
alert the burner control box to shut the burner down and provide a safe
lockout state indicated on the control panel LCD display [J] by code
9F 855.
J
K
°C
°F
855
Fig. 65
▶ Wait two minutes then press the lockout reset button [K] to initiate
another start sequence.
▶ Repeat procedure until a flame is established.
1. Start and run for three minutes then switch off.
▶ Release the burner retainer nut [H].
▶ Remove the burner.
▶ Check for after-spurting from the nozzle, indicated by oil saturation
on the combustion head [G]. If after-spurting occurs:
▶ Remove the combustion head [G], and electrodes, hold the burner
vertically, unscrew the nozzle and fill the nozzle holder with oil.
▶ Refit nozzle, electrodes, combustion head [G] and the burner.
▶ Restart and run for three minute intervals until after-spurting stops.
3
H
Fig. 66
2. Start and run for 20 minutes.
▶ Check that the oil pressure is set according to table 9 on page 44
▶ Remove sampling point plug [J] to check the smoke reading is
between 0-1. If the smoke level is above 1, check the combustion
settings are correct and the oil nozzle is in good condition.
4
J
Fig. 67
Greenstar Heatslave II
2022 +
6 721 843 978 (2022/01)
6720805209-90.1Wo
G
Smoke readings may be inaccurate until the smoke from
burning organic binder in the access door insulation has
ceased.
6.3.5
Switching the appliance on/off
▶ Turn on the mains power supply, initially the "Boiler start up screens"
will be displayed (see figure 69:)
▶ 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
Fig. 68
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
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
attempt 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).
1. If no adjustments are made for 30 seconds, the back light goes off.
2. As soon as an adjustment is made, the screen will light up and the
relevant information will be displayed.
Commissioning
41
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