16
ADDING WATER
When the “Low Water” light is on, additional water is required and the following steps must be
followed:
1.
Unit should be completely cold and off.
2.
Lift handle of pressure relief valve to release the remaining vacuum in the kettle (relief
valve is at left rear of kettle).
3.
Remove air vent nut on the elbow located at the rear right of the unit.
4.
Using pure distilled water only, pour the water into the opening (a funnel will be helpful).
Water will enter the kettle slowly, as air must escape through the same hole. Water should
be added until the water level is past the centre of the sight glass. The sight glass is
located on the lower front left of the kettle.
5.
When sufficient water has been added, replace and tighten the nut. Be sure to seal
threads with pipe joint compound suitable for steam at 50 psi.
6.
Vacuum must be re-established. See Re-establishing Vacuum).
RE-ESTABLISHING VACUUM
Periodically check pressure gauge when kettle is cold. It should be in green vacuum zone
(below 0 psi). Otherwise air is present and proper heating will not occur.
To remove air:
1.
With the kettle empty, turn the thermostat knob to the highest temperature.
2.
When the temperature pilot light goes off, open air vent nut one (1) full turn for 20 seconds
and then close and tighten the nut. This should remove the air and any loss in
performance should return.
3.
Proper vacuum in the kettle should now be re-established.
