13
Installation
HL-Series Tankless Heater
Bradley •
215-1823 Rev. F; ECN 18-17-017
3/29/2018
Perform Operational Test No. 1
Perform Operational Test No. 2
8
9
B
Start the water flow through the heater by
starting the process or fixture this heater is
connected to in order to activate heater .
A
Turn on hot water faucet/fixture/process . The
heater should activate immediately .
D
Press the up or down arrow keys to
adjust the set temperature . The controller
displays the temperature of water
measured at the outlet .
B
Turn off hot water faucet/fixture/process .
The flow switch will deactivate and shut
off power to the heater .
E
Test water temperature and stability at
outlet by viewing the display . Controller
displays (in red) the temperature of water
exiting the heater .
C
When flow rate reaches approximately 0 .5gpm
(1 .9 lpm), the flow switch 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 shows 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 .
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.
Each model has precise specifications
for temperature rise capabilities.
Temperature Rise (GPM & F°)
Models 208V, 240V, 277V, 480V
kW
1 gpm
Δ
T °F
1 .5 gpm
Δ
T °F
2 gpm
Δ
T °F
2 .5 gpm
Δ
T °F
3 gpm
Δ
T °F
3 .5 gpm
Δ
T °F
4 gpm
Δ
T °F
5 gpm
Δ
T °F
6 gpm
Δ
T °F
7 gpm
Δ
T °F
HL05
5
34
23
17
HL06
6
41
27
20
HL10
10
68
45
34
27
23
20
17
HL15
15
102
68
51
41
34
29
26
HL18
18
122
82
61
49
41
35
31
HL25
25
171
114
85
68
57
49
43
34
28
24
Temperature Rise (lpm & C°)
Models 208V, 240V, 277V, 480V
kW
3 .8 lpm
Δ
T °C
5 .7 lpm
Δ
T °C
7 .6 lpm
Δ
T °C
9 .5 lpm
Δ
T °C
11 .4 lpm
Δ
T °C
13 .3 lpm
Δ
T °C
15 .1 lpm
Δ
T °C
18 .9 lpm
Δ
T °C
22 .7 lpm
Δ
T °C
26 .5 lpm
Δ
T °C
HL05
5
19
13
9
HL06
6
23
15
11
HL10
10
38
25
19
15
13
11
9
HL15
15
57
38
28
23
19
16
14
HL18
18
68
46
34
27
23
19
17
HL25
25
95
63
47
38
31
27
24
19
16
13
A
Set the 2 or 3 pole switch or circuit breaker to
the ON position .
Ensure the cover is on or enclosure door is
closed prior to performing this operational test.
