Weil-McLain Aqua Balance WMB-155 Manual page 62

W
TM
AquaBalance
26 Controls and operation
Initial power up mode
Ensure the power is on to the boiler
Figure 80
Initial power up mode
During the first 5 seconds, the display shows the software version of the control module.
For the first 300 seconds, the display shows FH that identifies the Air purge function.
When the FH disappears, the boiler is ready to function automatically whenever the external controls are calling for heat.
Power down mode
Press the on/off button (Item 7 - Figure 76, page 60) for 5 seconds.
Figure 81 Power down mode
To turn boiler on again, press the on/off button
(Item 7 - Figure 76, page 60) hold for 5 seconds
The boiler is ready to function automatically whenever the external controls are calling for heat.
62
M -
ALL OUNT GAS FIRED WATER BOILER
Software version
On/Off button
—
Boiler Manual
(continued)
When the boiler is turned off with "eco"/power button, the control
module is still powered, heating operation is disabled and the display
is off, however the frost protection will still be active.
To totally isolate, close the gas cock before the
boiler and disconnect electricity supply.
Air purge
Part number 550-100-305/0118