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CNA-Series Tankless Heater
1
Mounting Heater
WARNING HIGH VOLTAGE SHOCK. Disconnect power supply before performing any work inside
the heater enclosure.
If heater is installed where freezing can occur, specify Bradley's ENHT Freeze Protection option. Bradley's ENHT
option must be purchased at the time of order. Do not install in areas where freezing can occur without the ENHT
option listed in the model number.
Installation should be performed by a qualified plumber or electrician.
For best results, install heater as close as possible to the point of use.
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 door and other plumbing for service/
maintenance. 36" (914 mm) minimum in front of the cabinet enclosure and 48" (1219 mm)
minimum above the cabinet enclosure are required.
Set the heater in a vertical, upright
A
position with the water outlet located
at top . Use the floor mounting template
from the inside of the crate to help with
alignment of the leg mounting .
B
Secure heater by bolting each leg to the
floor using 3/8" (10 mm) anchor bolts .
Install the pressure and temperature relief
C
valve on hot water outlet immediately
following the union .
NOTICE! Valve must empty into a
drain.
Bottom View - Leg Mounting Holes
3/4" x 7/16"
(20 x 10)Slot
(6) Places
12"
(305)
6
30" (762)
6⁷⁄₈" (175)
16¼" (413)
8/1/2021
Rectangle outline on template is not actual size of
heater.
Template may require cutting to fit into tight areas.
Holes are for alignment purposes and may not
represent actual drill size for mounting hardware.
(51)
Installation
(mm)
3⁷⁄₈" (99)
8"
(204)
4"
(102)
2"
Bradley • 215-1814 Rev. G
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