Benson Heating Gas Fired Room Sealed Unit Heater RS 140

Slacken the belt tension by unscrewing screw

Loosen grub screw of the mobile part of pulley with a hexagonal spanner

Rotate the mobile part of the pulley to obtain the required pitch line diameter

Lock the grub screw tightly at the hub hollow

Ensure cleaning is performed by authorized personnel

Disconnect the gas solenoid valve unit

Did the fan start approximately 30 seconds after ignition of the burner?

Full Efficiency Checks (After 20 minutes)

Enter the gas rate using a meter

Enter the temperature rise and compare to data plate

Remove foreign substances from the motor

Check the tension of the transmission belt

Measure the belt deflection when pressed

Check alignment between motor pulley and fan pulley

Injector Removal and Replacement

Unscrew the natural gas injectors

Replace with the correct size injectors for propane

Verify injector and nozzle specifications

Place the transfer with the correct gas pressure onto the manifold as supplied in the conversion kit

Test for gas soundness on completion

Ensure new aluminium washers are fitted