8
HL-Series Tankless Heater
Installation
3/29/2018
Bradley •
215-1823 Rev. F; ECN 18-17-017
Electric Installation
3
B
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
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 .
A
For NEMA 1 enclosures, remove the four screws
and take the bottom cover off . For NEMA 4/4X
enclosures, open the enclosure door .
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 .
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.
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.
ELECTRICAL SPECIFICATIONS FOR HEATER
(Single Phase)
Model
Voltage
Amps
kWatts
Min Wire
Size
HL060/480D
480
13
6
12 AWG*
HL180/480D
480
38
18
6 AWG*
HL060/415D
415
6
4
12 AWG*
HL180/415D
415
19
13
10 AWG*
HL060/380D
380
6
4
12 AWG*
HL180/380D
380
17
11
12 AWG*
HL060/277D
277
22
6
10 AWG*
HL180/277D
277
65
18
3 AWG*
HL050/240D
240
21
5
10 AWG*
HL060/240D
240
25
6
8 AWG*
HL100/240D
240
42
10
6 AWG*
HL180/240D
240
75
18
3 AWG*
HL050/208D
208
24
5
10 AWG*
HL060/208D
208
29
6
8 AWG*
HL100/208D
208
48
10
4 AWG*
HL180/208D
208
87
18
3 AWG*
* Based on the NEC Table 310 .15 for 75°C insulated copper wire @ 30°C
Ambient . Aluminum wire requires larger gauges .
ELECTRICAL SPECIFICATIONS FOR HEATER
(Three Phase)
Model
Voltage
Amps
kWatts
Min Wire
Size
HL103/480D
480
13
10
12 AWG*
HL183/480D
480
22
18
10 AWG*
HL103/415D
415
10
7
12 AWG*
HL183/415D
415
19
13
10 AWG*
HL103/380D
380
10
6
12 AWG*
HL183/380D
380
17
11
12 AWG*
HL153/240D
240
36
15
6 AWG*
HL183/240D
240
43
18
6 AWG*
HL153/208D
208
42
15
6 AWG*
HL183/208D
208
50
18
4 AWG*
HL103/208D
208
28
10
8 AWG*
HL253/480D
480
30
25
8 AWG*
Not all available (optional) voltages are listed in table.
F
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
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 .
