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1. Unplug all sensors.
2. Replace the blown fuse (Panel 3) (if the fuse blows immediately when you turn on the touch screen,
go to Test 19.A).
3. Watch touch screen as you plug the sensors in one by one Menu > Diagnostics > Inputs Outputs >
Analog Inputs.
4. Find out which sensor causes a blown fuse.
5. Replace the faulty sensor.
*If you cannot find a faulty sensor, go to Test 19.A.
1. Go to Menu > Settings > Tune Burner (the dewpoint needs to be running to tune the burner).
The machine needs to be full of water in order to tune.
2. Press “Low Tune” and wait for the burner to reach “Low Fire”.
3. Decrease
louver position till dark smoke appears.
4. Increase
louver position slowly until dark smoke disappears.
5. Then increase
louver position an additional 4%.
6. To tune high fire, press “High Tune” and wait for the burner to reach “
High Fire”. Then repeat steps
3-5 but this time for the “Louver High Fire Position”.
Test 19.B: Faulty Sensor Test (No Multimeter Required)
Test 20: Burner Tune
Tests
1
1
5
Boiler Water
Temp. Sensor
Boiler Sight Glass
Front Turn box
Y-Strainer
Pressure Relief
Valve
Low Water
Cutoff
Boiler Water
Level Sensor
Steam psi 1
Manual Steam
Pressure Gauge
Operating Pressure
Limit Switch (OPLS)
High Pressure
Limit Switch (HPLS)
Steam psi 2
Feed Water
Temp. Sensor
2
2
6
3
3
4
4
Boiler Water
Temp. Sensor
Boiler Sight Glass
Front Turn box
Y-Strainer
Pressure Relief
Valve
Low Water
Cutoff
Boiler Water
Level Sensor
Steam psi 1
Manual Steam
Pressure Gauge
Operating Pressure
Limit Switch (OPLS)
High Pressure
Limit Switch (HPLS)
Steam psi 2
Feed Water
Temp. Sensor
Fuel Pump psi
150
Nozzle psi
Nozzle 1 (Low Fire)
150
Nozzle 1 & 2 (High Fire)
130