5
Installation
HL-Series Tankless Heater
Bradley •
215-1823 Rev. F; ECN 18-17-017
3/29/2018
Mounting Heater
1
WARNING HIGH VOLTAGE SHOCK. Disconnect power supply before performing any work inside
the heater enclosure.
For best results, install heater as close as possible to the point of use.
Installation should be performed by a qualified plumber or electrician.
Long pipe runs are not recommended. A heat loss of 1°F for every 10ft (3 meters) of uninsulated
pipe can occur.
When determining a mounting location, give consideration to the location of the main electrical panel
and ensure accessibility of the cabinet enclosure cover and other plumbing for service/maintenance.
Side View - Wall Mounting Holes (NEMA 1)
A
Set heater in a vertical, upright position
with the water inlet and outlet located at
top .
Depending on the application, the unit
may also be installed rotated clockwise
90° with the inlet and outlet to the right.
B
Mount heater to the wall using the (4) mounting
brackets on the back of the enclosure . Bolt the
heater to the vertical surface . Mounting holes
are designed for a maximum bolt size of 1/4"
(6mm) bolt diameter .
C
Install the pressure and temperature relief
valve on hot water outlet immediately
following the union .
NOTICE! Valve must empty into a drain.
Heater should be mounted on a vertical
surface and securely hold a minimum of
45 pounds. Use lead or plastic anchors
when mounting directly onto concrete or
block walls.
13"
(330)
2 .75" (70)
13 .5"
(343)
23"
(584)
14"
(356)
NEMA1 is standard on 5-18kW models.