Service Instructions; Burner Orifice - L.B. White Sun Blast HD Manuel Du Propriétaire Et Instructions

14
Sun Blast HD

Service Instructions

WARNING
Burn Hazard
■ Heater surfaces are hot for a period of time after
the heater has been shut down.
■ Allow the heater to cool before performing
service, maintenance, or cleaning.
■ Failure to follow this warning will result in burns
causing injury.
WARNING
Fire and Explosion Hazard
■ Do not disassemble or attempt to repair any
heater components or gas train components
such as gas valves, or gas hoses.
■ All component parts must be replaced if defects
are found.
■ Failure to follow this warning will result in fire or
explosions, causing property damage, injury, or
death.
1. Close the fuel supply valve to the heater before
servicing.
2. Disconnect the gas hose from the heater before
proceeding with the service work.
3. Disconnect the thermocouple from the safety
control valve when servicing either the safety
control valve or burner orifice.
4. For reassembly, reverse the respective service
procedure. Ensure gas connections are tightened
securely and leak checked before lighting the
heater.
5. Clean the heater's orifice with compressed air or
a soft, dry rag. Do not use files, drills, etc., which
may enlarge the holes, causing combustion
problems or burner flame extending outside of the
case barrel. Replace the orifice if its holes cannot
be cleaned properly.

Burner Orifice

1. Lay the heater on its side and remove the heater
base plate (4 screws) to access the gas control
valve related components. See Fig. 7.
Owner's Manual • Sun Blast HD
FIG. 7
2. To remove the orifice, disconnect the CSST tube from
the orifice holder.
3. Remove the pin from the orifice holder. See Fig. 8.
FIG. 8
PIN
BURNER
4. Slide the burner inward enough to clear the orifice
and slide the orifice holder out. See Fig. 8.
5. Replace or clean components as needed.
Gas Control Valve
1. Remove the heater base plate. See Fig. 7.
ORIFICE