Absolute Boilers 750-900-1050
50
Absolute Boilers 750-900-1050
Air pressure switch
The boiler has been approved and has found to be in compliance to the LWCO protection, provided the factory preset
high limit and flow temperatures are not altered and the modulating controls are used and no minimum flow rate is
required as the Sola control system will monitor these conditions and reduce the boiler output, finally shutting down
until flow conditions improve. As a result, the boiler is virtually unaffected by low water flow. Although boiler flow
and content protection is provided, does not safeguard the entire heating system, additional low water content and
temperature safety controls maybe needed in certain jurisdictions. In the event the low level is too low a RED light will
flash on the low water cut off. To reset this device the technician needs to press the light.
This limit device also has test button, when this button is pressed down the controls shuts the boiler down. To reset
this again the operator needs to reset the device by pressing the re set button (red)
5.3.3 High limit protection
The high limit temperature protection device switches off and locks out the boiler when the flow temperature exceeds
the maximum set point temperature.
5.3.4 Air pressure switch
This device proves to the control the blower motor is on, and that airflow is flowing into the boiler. The adjustments
screw is located on the back of the device. This should only be adjusted by a qualified technician. No adjustment in the
field is required, as the boiler was test fired in the factory before shipment.
