Detroit Radiant Products Company HL3 Series - Manual (Page 3)

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”
SAMPLE
SER
VICE
ACCESS P
ANE
L
CONTROLS & GAS
VA
LVE COMP
ARTMENT
1. Disconnect gas & electricit
y.
2. Remove four (4) thumbscrews
.
3. Remove top cove
r.
4. Swing hinged panel downward. KEEP
COVER IN PLACE. REMOVE FOR SER
VICE ONL
Y.
SER VICE
ACCESS P
ANE L
IGNITER & FLAME SENSE COMP
ARTMEN
T
1. Disconnect gas & electricit
y.
2. Remove cover by lifting top cover upward and outward
.
CAUTION
: HOT SURF
ACE.
KEEP COVER IN PLACE. REMOVE FOR SER
VICE ON LY .
SER
VICE
ACCESS P
ANE
L
F AN COMP
ARTMENT
1. Disconnect gas & electricit
y.
2. Remove top cover (2 thumbscrews). 3. Remove tsix (6) 1/4” screws. 4. Lift and remove panel. KEEP
COVER IN PLACE. REMOVE FOR SE
RV
ICE ONL
Y.
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.