Operating instructions

3.0 Boiler Controls

3.1 Temperature Control

Central Heating

1. The lower the flow temperature is set to, the higher the

efficiency the boiler will operate at. The flow temperature

can be adjusted between approx 55 °C minimum and

approx 82 °C maximum by turning the Flow Temperature

Control Knob (Fig. 2).

2. The boiler will light automatically on demand and the

Green ‘Burner ON’ light will be lit whilst water is being

heated (Fig. 2).

3. The boiler control system has an automatic time delay

built in. It is normal that following a shutdown by the boiler

thermostat, timer or other heating control, there is a delay

of around 3 minutes, before re-lighting.

Flow Temperature

Control

Fig. 2

Low

High

Reset

Button

Burner ON

Light - Green

Mains ON

Light - Green

Fault

Light - Red