DH Series Industrial Heaters are equipped with an over
temperature limit that will shut the heater
down
in the
event
of
over-
heat-
ing.
NOTE: Should the unit activate the over temperature limit, the
cause of over heating should be determined before further opera-
tion. Check heater to ensure it has not been blocked in any man-
ner, if so remove blockage. If there is no indication of blockage, it
is recommended the heater be checked by a qualified electrician
or repair service to ensure the heater has not been damaged.
MAINTENANCE
Replace or repair damaged cords or plugs immediately. Check
tightness of all electrical connections prior to energizing the
heater. Blow with com pressed air or vacuum away any dirt or
debris that may have accumulated around the control
enclosure, fan motor or heating elements. The heater housing
can be wiped clean with a clean damp rag.
ELECTRIC SHOCK HAZARD. DISCONNECT HEATER FROM
POWER SUPPLY BEFORE SERVICING AND/OR INSPECT-
ING THE HEATER; FAILURE TO DO SO MAY RESULT IN
ELECTRICAL SHOCK.
ALLOW HEATER TO COOL COMPLETELY BEFORE
SERVICING OR CLEANING.
4
F
its Cable Dia. Plug Type Model Description Volts Amps Configuration NEMA # ANSI #
.385”-.780” Locking LPS25124 3 Pole, 4 Wire 250 20 L15-20 C73.85
.
595”-1.150” Locking LPS25104 3 Pole, 4 Wire 480 30 L16-30 C73.88
.595”-1.150” Locking LPS25084 3 Pole, 4 Wire 600 30 L17-30 C73.89
.750”-1.125” Locking LPS25083 2 Pole, 4 Wire 600 50 ——
.
750”-1.125” Locking LPS25064 3 Pole, 4 Wire 600 50 ——
.
625”-1.187” Non Locking NPS25650 2 Pole, 3 Wire 250 50 6-50 C73.53
.
390”-.775” Non Locking NPS1520 3 Pole, 4 Wire 250 20 15-20 C73.59
.750”-1.250” Non Locking NPS1550 3 Pole, 4 Wire 250 50 15-50 C73.61
Plug Specifications (for reference only)
G
G
W
X
Z
G
W
X
Z
X
G
Y
Z
X
G
Y
Z
X
G
Y
Z
Y
X
G
Y
X
Z
G
L1 L2
240 V
10 KW
1 Phase Control Box
Field Wiring
To Power Supply
Wiring Diagram 4 – 240V / 10KW, 1 Phase
4
80 V
15 KW
3 Phase Control Box
Field Wiring
G
L1 L2 L3
To Power Supply
Wiring Diagram 3 – 480V / 15KW, 3 Phase
240 V
15 KW
3 Phase Control Box
Field Wiring
G
L
1L2L3
L
To Power Supply
G
L1 L2
240 V
15 KW
1 Phase Control Box
Field Wiring
To Power Supply
Wiring Diagram 1 - 240V / 15KW, 3 Phase Wiring Diagram 2 – 240V / 15KW, 1 Phase
208 V
15 KW
3 Phase Control Box
Field Wiring
G
L1 L2 L3
To Power Supply
Wiring Diagram 5 – 208V / 15KW, 3 Phase
480 V
30 KW
3 Phase Control Box
Optional
Field Wiring
G
L1 L2 L3
To Power Supply
Wiring Diagram 6 – 480V / 30KW, 3 Phase
(4 pages)
(9 pages)
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