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HL-Series Tankless Heater
3
Electric Installation
WARNING Install product to rated line voltage in
accordance to current local and national
codes and regulations.
WARNING All Keltech heaters must be fused in
accordance with National Electric Code
(NEC) for the full load amperage listed
on the nameplate rating for each heater.
WARNING
Failure to properly ground the unit(s) per
the National Electric Code could result in
injury or death.
For NEMA 1 enclosures, remove the four screws
A
and take the bottom cover off . For NEMA 4/4X
enclosures, open the enclosure door .
NOTICE!
Any option that requires field wiring must
be done with a wire rated for the maximum
voltage of the heater.
NOTICE!
Use a three for a single phase or a four core
cable for three phase from an approved
isolating two or three pole switch or circuit
breaker to the terminal block of the heater.
NOTICE!
Make sure the electrical cable is the correct
size to carry 100 % of the full load current.
See table for proper wire sizes.
NEMA 1: A pre-cut hole is already sized for
conduit connection . Skip to step C .
NEMA 4/4X: Using a hole punch, cut a hole
B
the proper size for conduit connection; large
enough for the wire size for each heater . The
connectors need to be rated NEMA4/4X to
ensure proper sealing of the enclosure .
C
Run wires through the appropriate size conduit .
D
Connect wires to the system terminal block
inside the enclosure .
E
Connect the ground wire to the stud provided
with the "Ground" label beneath it .
If unit is ordered with a D1 or DC controller option,
the DB9 connector for hookup on a standard
unit is located on the upper left/hinge side of the
cabinet . Please review the appropriate Special
F
Installation & Operation Instruction section for
information regarding controller programming and
wiring . Proceed to the Start Up Checklist once
the steps in the Special Installation & Operation
Instructions section have been completed or
if you do not have this option .
8
Model
HL060/480D
HL180/480D
HL060/415D
HL180/415D
HL060/380D
HL180/380D
HL060/277D
HL180/277D
HL050/240D
HL060/240D
HL100/240D
HL180/240D
HL050/208D
HL060/208D
HL100/208D
HL180/208D
Model
HL103/480D
HL183/480D
HL103/415D
HL183/415D
HL103/380D
HL183/380D
HL153/240D
HL183/240D
HL153/208D
HL183/208D
HL103/208D
HL253/480D
* Based on the NEC Table 310 .15 for 75°C insulated copper wire @ 30°C
Ambient . Aluminum wire requires larger gauges .
3/29/2018
ELECTRICAL SPECIFICATIONS FOR HEATER
(Single Phase)
Voltage
Amps
480
480
415
415
380
380
277
277
240
240
240
240
208
208
208
208
ELECTRICAL SPECIFICATIONS FOR HEATER
(Three Phase)
Voltage
Amps
480
480
415
415
380
380
240
240
208
208
208
480
Not all available (optional) voltages are listed in table.
Bradley • 215-1823 Rev. F; ECN 18-17-017
Installation
Min Wire
kWatts
Size
13
6
12 AWG*
38
18
6 AWG*
6
4
12 AWG*
19
13
10 AWG*
6
4
12 AWG*
17
11
12 AWG*
22
6
10 AWG*
65
18
3 AWG*
21
5
10 AWG*
25
6
8 AWG*
42
10
6 AWG*
75
18
3 AWG*
24
5
10 AWG*
29
6
8 AWG*
48
10
4 AWG*
87
18
3 AWG*
Min Wire
kWatts
Size
13
10
12 AWG*
22
18
10 AWG*
10
7
12 AWG*
19
13
10 AWG*
10
6
12 AWG*
17
11
12 AWG*
36
15
6 AWG*
43
18
6 AWG*
42
15
6 AWG*
50
18
4 AWG*
28
10
8 AWG*
30
25
8 AWG*
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