© MHG Heating Ltd
10
MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR
0845 6448802 Telephone. 0845 6448803 Fax. Email
Website
www.mhgheating.co.uk
010113 Draft
Controller Adjustment
The control panel can be used to set or review the operation parameters of the boilers. A number
of the buttons have dual/multiple functions dependant to the sequence of operation or function
mode the unit is in.
1 / A Power Mode Selector/Indicator.
Pressing the button once will change to operating mode of the boiler.
If the LED is Red and the display is indicating -- the boiler is OFF and will not respond to an
enabling signal.
If the LED is Green and the display is blank the boiler is ON and will respond to an enabling signal.
2 / 3 / B / C / D
Boiler Flow Temperature Adjustment for Heating and HWS Operation.
Pressing button 3 will illuminate the heating mode LED B and display the respective target flow
temperature on the display D. This can be adjusted via the + & - buttons 2. The setting can be
stored by pressing the Reset Button 5.
Pressing button 3 twice will illuminate the HWS mode LED C and display the respective target flow
temperature on the display D. This can be adjusted via the + & - buttons 2. The setting can be
stored by pressing the Reset Button 5.
4 / E / 2 Commissioning Mode Selection
The commissioning mode can be activated by pressing the following buttons in the required
sequence.
Required Function
Buttons
Display
Low Fire
Service Button 4 & Minus Temperature Button 2
L
Hire Fire Heating Mode
Service Button 4 & Plus Temperature Button 2
h
Highest Firing Mode
Service Button 4 & Plus Temperature Button 2 Twice
H
Exit Commissioning
Mode
Minus Temperature Button 2& Plus Temperature Button
2
Normal
Control
These operating mode must be used when commissioning the appliance and following any service
interventions.
