Absolute Boilers 750-900-1050
67
Absolute Boilers 750-900-1050
8.
High gas/Vent Safety pressure switch calibration and check
a. Check for leaks around the piping of high gas pressure switch for gas leaks
b. Command boiler on, while starting turn dial to minimum setting or until the boiler shutdown on LCI (operating
interlocks), the switch is equipped with a LED indication when switch has activated.
c. Set switch setting back to (SEE TABLE), press the reset on switch and observe boiler shall start again
automatically.
d. Connect a manometer to the test point and observe pressure reading