7
Installation
HL-Series Tankless Heater
Keltech •
215-1823 Rev. A; ECN 150023
11/24/2015
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*
HL120/480D
480
25
12
8 AWG*
HL180/480D
480
38
18
6 AWG*
HL060/415D
415
6
4
12 AWG*
HL120/415D
415
12
9
12 AWG*
HL180/415D
415
19
13
10 AWG*
HL060/380D
380
6
4
12 AWG*
HL120/380D
380
11
8
12 AWG*
HL180/380D
380
17
11
12 AWG*
HL060/277D
277
22
6
10 AWG*
HL120/277D
277
43
12
6 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*
HL120/240D
240
50
12
4 AWG*
HL150/240D
240
63
15
3 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*
HL120/208D
208
58
12
4 AWG*
HL150/208D
208
72
15
3 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*
Not all available (optional) voltages are listed in table.
