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SERVICE TECHNICIAN:
1.
Bypass the thermostat by removing the wire on terminal 8 and install on piggy back on
terminal 10. Ignition and temperature light will come on.
2.
Turn on unit and allow it to reach approximately 35 psi. Rotate knob on pressure switch
clockwise to increase, counterclockwise to decrease. Use centre of black ring as an
indicator until burner shuts off at 35 psi as shown on pressure gauge on front of unit.
3.
To check that the pressure switch operates, cool the kettle down by filling with cold water.
Once cooled, turn kettle back on.
4.
Turn off power and cool unit down so that pressure on gauge is below 30 psi.
5.
When pressure is below 30 psi, reconnect the thermostat into circuit and set thermostat dial
to maximum setting.
6.
Turn on power and allow pressure to reach 30 psi on the pressure gauge.
7.
Thermostat must shut off at 30 psi. Should it fail to do this, adjustment will be required.
8.
To set thermostat, adjust the trim-pot on the control inside the kettle. It is located next to
terminal 2 and is not sealed. Turning pot clockwise will lower the temperature setting,
counterclockwise increases temperature.
9.
To check that the thermostat operates correctly, cool the unit as before and turn thermostat
dial to maximum setting. Burner should ignite and cycle between 22 and 30 psi.
10. If vacuum has been lost, heat unit until 30 psi, and open vent nut to release pressure in
order to create vacuum. When ignition and temperature lights come on, between 22 to 24
psi, close vent nut and allow to build pressure.
11. Unit is now ready for operation.
Burner should shut down at 35 psi.
15
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