5
Installation
CNA-Series Tankless Heater
Keltech •
215-1814 Rev. C; ECN 150010
7/13/2015
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 is to be performed by licensed trades people.
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 enclosure door and other plumbing for service/maintenance.
36" minimum in front of the cabinet enclosure and 48" minimum above the cabinet enclosure are
required.
Bottom View - Leg Mounting Holes
30" (762mm)
12"
(305mm)
2"
(51mm)
4"
(102mm)
8"
(204mm)
6-7/8"
(175mm)
16-1/4"
(413mm)
3-7/8"
(99mm)
3/4" x 7/16" Slot
(6) Places
If heater is installed where freezing can occur, specify Keltech's ENHT Freeze Protection option. Keltech'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.
A
Set the heater in a vertical, upright
position with the water outlet located
at top . Use the floor mounting template
on the side of the crate to help with
alignment of the leg mounting .
B
Secure heater by bolting each leg to the
floor using 3/8” anchor bolts .
C
Install the pressure and temperature relief
valve on hot water outlet immediately
following the union .
NOTICE! Valve must empty into a
drain.
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.