Instruction Manual

3
24V
LOW
24V OUT
HIGH
- 24V HEATER OUTPUT -
F/N: LLV3EP4
(White crescent
- no relay)
NEUTRAL
EARTH
HOT
- 120V HEATER INPUT -
120V
1.0 Safety
NEUTRAL
EARTH
HOT
- 120V HEATER INPUT -
120V
LOW
NEUTRAL
HIGH
24V
- 24V HEATER INPUT -
F/N: LLAC
Air Metering Orifice
Air Metering Orifice
DO NOT REMOVE
TP-114
TP-3014
3”
SAMP LE
SERVICE ACCESS PANEL
CONTROLS & GAS VALVE COMPARTMENT
1. Disconnect gas & electricity.
2. Remove four (4) thumbscrews.
3. Remove top cover.
4. Swing hinged panel downward.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
SERVICE ACCESS PANEL
IGNITER & FLAME SENSE COMPARTMENT
1. Disconnect 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
FAN COMPARTMENT
1. Disconnect gas & electricity.
2. Remove top cover (2 thumbscrews).
3. Remove tsix (6) 1/4” screws.
4. Lift and remove panel.
KEEP COVER IN PLACE. REMOVE FOR SERVICE ONLY.
Safety Labels and Their Locations
Back Panel
Top Panel
Bottom Panel
F/N: LLTB018 (Natural Gas)
F/N: LLTB019 (LP Gas)
F/N: LLTCL001L/C/R
Clearance to Combustibles
Labels
F/N: LLLOGO1 Logo Label
Product safety signs or labels should be replaced by the product user when they no longer are legible.
Contact either your local distributor or the product manufacturer for obtaining replacement signs or labels.
F/N: LLV3EP1
F/N: LLV3EP2
(Orange
crescent -with
relay option)
F/N: LLV3EP14
(Operational Indicator Lights)
HL3 Series
1.0 Safety • Safety Labels and Locations
Read and understand all safety information and warnings in this insert manual and the Tube
Heater General Manual before installation, operation and maintenance of the radiant tube
heater system.