Installation
13
8
Perform Operational Test No. 1
Ensure the enclosure door is closed prior to performing
operation test.
Set the 3-pole switch or circuit breaker to the ON
position.
Press the up or down arrow keys to adjust the set
temperature. The controller displays the temperature
of water measured at the outlet.
Start the water flow through the heater by starting
the process or fixture this heater is connected to in
order to activate heater.
Test water temperature and stability at outlet by
viewing the display (in red) the temperature of water
exiting the heater.
When flow rate reaches approximately
0.5gpm
(1.9lpm), the flow sensor recognizes this condition
and begins the heating process.
When the flow switch activates:
The display changes from OFF to the output
temperature, verifying power supply connection to
the heating elements via the triac switches.
Element load lights may be solid or flash in unison
as heating elements modulate depending on the
hot water demand.
Digital temperature controller sows water
temperature. Additional programming is not
necessary.
Heater will not energize heating elements if the inlet
water temperature is equal to or greater than the
temperature set on the digital controller.
9
Perform Operational Test No. 2
Each model has precise specifications for temperature
rise capabilities.
Turn on hot water faucet/fixture/process. The heater
should activate immediately.
Turn off hot water faucet/fixture/process.
The flow switch will deactivate and shut off power to
the heater.
If the water flow exceeds maximum heating capacity of the heater, the temperature of water at the outlet may be lower
than the temperature selected on the controller. See table below to determine maximum temperature rise capabilities.
Temperature Rise (GPM & F°
)
208V, 240V,
277V, 480V
kW
1 gpm
ΔT °F
1.5 gpm
ΔT °F
2 gpm
ΔT °F
2.5 gpm
ΔT °F
3 gpm
ΔT °F
3.5 gpm
ΔT °F
4 gpm
ΔT °F
5 gpm
ΔT °F
6 gpm
ΔT °F
7 gpm
ΔT °F
LCTEH005
5
34
23
17
LCTEH006
6
41
27
20
LCTEH010
10
68
45
34
27
23
20
17
LCTEH015
15
102
68
51
41
34
29
26
LCTEH018
18
122
82
61
49
41
35
31
LCTEH025
25
171
114
85
68
57
49
43
34
28
24
Temperature Rise (LPM & C°
)
208V, 240V,
277V, 480V
kW
3.8 lpm
ΔT °C
5.7 lpm
ΔT °F
7.6 lpm
ΔT °C
9.5 lpm
ΔT °C
11.4 lpm
ΔT °C
13.3 lpm
ΔT °C
15.1 lpm
ΔT °C
18.9 lpm
ΔT °C
22.7 lpm
ΔT °C
26.5 lpm
ΔT °C
LCTEH005
5
19
13
9
LCTEH006
6
23
15
11
LCTEH010
10
38
25
19
15
13
11
9
LCTEH015
15
57
38
28
23
19
16
14
LCTEH018
18
68
46
34
27
23
19
17
LCTEH025
25
95
63
47
38
31
27
24
19
16
13
