39
LOGIC HEAT.
12 15 18 24 30
BOILER CONTROLS
A. Temperature Control
B. Mode Control
C. Boiler Status
D. Burner ‘on’ Indicator
E. Economy Mode
A E C D B
LOGIC SYSTEM.
15 18 24 30
BOILER CONTROLS
A. CH Temperature Control
B. Mode Control
C. Boiler Status
D. Burner ‘on’ Indicator
E. Economy Mode
A E C D B
In normal operation the boiler status display (C) will show the following
codes: 0 – Standby – no demand for heat, C – Central Heating being
supplied, F – boiler frost protection (boiler fires if temperature is
below 5°C).
If the pressure is seen to fall below the original installation pressure of
1-2 bar over a period of time then a water leak may be indicated. In this
event conduct the re-pressurising procedure as show on page 4 of the
User Manual.
In normal operation the boiler status display (C) will show the following
codes: 0 – Standby – no demand for heat, C – Central Heating being
supplied.
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