6
CLE Series Tankless Heater
Installation
10/2/2015
Keltech •
215-1822 Rev. A; ECN 140011
Electric Installation
3
WARNING Failure to properly ground the unit(s) per the National Electric Code could result in injury
or death.
B
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
Open enclosure door .
C
Run wires through the appropriate size
conduit .
D
Connect wires to the system terminal
block or fused disconnect 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 600V cable per
the schematic that was shipped with
the heater.
NOTICE! Use a 4-core cable or multi-stranded
machine tool wire from an approved
isolating 3-pole switch or circuit
breaker.
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 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.
ELECTRICAL SPECIFICATIONS FOR HEATER (3 PHASE)
Model
Voltage
Amps
kWatts
Min Wire
Size
CLE183/600D
600
18
18
10 AWG*
CLE253/600D
600
24
25
10 AWG*
CLE183/480D
480
22
18
10 AWG*
CLE253/480D
480
30
25
8 AWG*
CLE183/415D
415
18
13
10 AWG*
CLE253/415D
415
26
19
8 AWG*
CLE183/400D
400
17
12
12 AWG*
CLE253/400D
400
24
17
10 AWG*
CLE183/380D
380
17
11
12 AWG*
CLE253/380D
380
24
15
10 AWG*
* Based on the NEC Table 310 .15 for 75°C insulated copper wire @ 30°C
Ambient . Aluminum wire requires larger gauges .
Not all available (optional) voltages are listed in table.
WARNING Install product to rated line voltage in accordance to current local and national codes and
regulations.
