MAXIMUM FAN SPEED SET UP

Observation:

Maximum Fan Speed (hxi range only)
When fitting this PCB to one of the hxi range of boilers the maximum fan speed must be set, follow the steps below referring to the table to set the correct fan speed.

Turn potentiometer C to MAX setting (fully clockwise)

Adjust potentiometer A to set correct fan speed (display will flash fan speed)

Once fan speed has been set turn potentiometer C back to run position (fully anti-clockwise)

Boiler Name	Fan Speed
12hxi	27
15hxi	32
18hxi	41
24hxi	47
30hxi	57
38hxi	57
BG330	19 to 47 (see note)

Potentiometer A

Potentiometer C

Note:
The BG330 can be range rated from 12kW to 31kW.
Refer to the appliance data badge for more information.