Benson Heating Gas Fired Room Sealed Unit Heater RS 325

Ensure cleaning is performed by authorized personnel

Disconnect the gas solenoid valve unit

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

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 pitch line diameter required

Lock the grub screw tightly at the hub hollow

Ensure routine inspections are carried out frequently and servicing is done regularly as per manufacturer's recommendations.

Verify if the frequency of servicing needs to be increased based on the working environment.

Ensure a safe working platform with good access to the heater is available.

Clean all accessible surfaces including the outside of the heat exchanger by removing the fan assembly and the louvres.

Check for panel damage and that all fasteners are present and secure.

Visually check all electrical wiring for signs of damage and check conduit for signs of chaffing and for security.

Check all terminals are secure and free from escaped/stray conductor strands.

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