!
CAUTION
Provide 24
Volts Only
This heater has a 24 Volt
control system. Do not
connect 120 Volt power
supply, as it will damage
the controls.
WARNING
!
!
Placement of explosive objects, flammable objects, liquids and vapors close to
the heater may result in explosion, fire, property damage, serious injury or death.
Do not store or use explosive objects, liquids or vapor in the vicinity of the heater.
This heater is equipped with an
HLRB Relay(s) required for grouping
multiple heaters on the same
thermostat. This heater must be wired with a
field supplied transformer in accordance with
the installation, operation manual.
4
RHT
Series
HIGH
FIRE
H
L
LOW
FIRE
1.0
Safety •
Safety Labels and Locations • Clearance to Combustibles
F/N: LLTB031
Clearance to combustibles is defined as the minimum distance that must exist between the tube surface,
or reflector, and any combustible items (see Figure 1.1). It also pertains to the distance that must be
maintained from moving objects around the tube heater.
When installing the tube heater system, clearances to combustibles for the model tube heater and
configuration must be maintained. Refer to Chart 1.1 below to determine the required distances for your model.
Clearance to Combustibles
F/N: LLDR003
F/N: LLV3EP2
Orange Crescent
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1.
Turn off gas & electricity.
2.
Remove cover by lifting top
cover upward and outward.
CAUTION:
HOT SURFACE.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1.
Turn off gas & electricity.
2.
Remove cover by lifting top
cover upward and outward.
CAUTION:
HOT SURFACE.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
F/N: LLTB026
Right Panel
(Valve Compartment)
Radiant Tube(s)
Combustion Chamber
16” Burner Tube
Left Panel
(Fan Compartment)
AVOID EQUIPMENT FAILURE
THIS 10 FT. TUBE IS THE
COMBUSTION CHAMBER.
THIS TUBE MUST BE THE FIRST TUBE
FOLLOWING THE BURNER CONTROL BOX.
!
INSTALLER
The combustion chamber utilizes either 409
stainless, titanium alloy or aluminized steel -
depending on the model number of your heater.
Rotate the tube’s welded seam to bottom.
Consult the manual(s) for further details.
F/N: LLTB004
(orange)
F/N: LL01 - Clearance Safety Tag
(Affix adjacent to heater’s thermostat)
F/N: LLV2EP9
