YFG255 SERIES GAS RETHERMALIZERS
CHAPTER 1: SERVICE PROCEDURES
1-4
1.4 Adjusting Burner Manifold Gas Pressure (cont.)
3.
Insert the fitting for a gas pressure-measuring device into the pressure tap hole.
4.
Place the gas valve in the "ON" position then place the rethermalizer power switch in the "ON"
position. When the burner lights and continues to burn, note gas pressure reading for correct
pressure in accordance with the table on page 1-1.
5.
To adjust burner gas pressure, remove the cap from the gas valve regulator and adjust to correct
pressure.
6.
Place the rethermalizer power switch and the gas valve in the "OFF" position. Remove the
pressure-measuring device fitting from the pressure tap hole and reinstall the pressure tap plug.
1.5 Replacing Rethermalizer Components
1.5.1 Replacing the Controller or Solid State
Relays
1.
Disconnect the rethermalizer from the electrical supply.
2.
Open the cabinet doors and unscrew the three controller
panel screws located beneath the bezel. The controller
panel will drop down and will rest on the open doors.
3.
Mark the wires for reassembly and using a small
screwdriver loosen and remove the wires from the rear
of the controller. If replacing the relays disconnect the
wires and replace the faulty relay.
Remove the three bezel screws.
Mark wires for reassembly.