Reznor, Photon, Installation Manual, EN 2021-04, D301310 Iss 0 Page No 13 of 52
I
The unit heater is delivered on a pallet; leave
the unit on the pallet until you are ready
to hang it. If the bottom of the unit is not
protected or supported prior to installation,
damage can occur.
The heater is supplied with four point
suspension. All points must be used. Two
threaded nut retainers are provided on each
side of the top of the heater. See Figure 1 for
hanger rod size.
Be sure that the threaded hanger rods are
locked to the heater as illustrated in Figure 1.
Recommended maximum hanger rod length is
1.8m. Where longer drops are required, ensure
that restraints are fitted to prevent excess
lateral movement and supports are adequately
sized.
A wall mounting bracket kit is available to
offer mounting alternatives. Please contact the
manufacturer / distributor for details.
Figure 1 Suspending the heater with rods
from the threaded nut retainers
Add a nut to lock the
M10x1.5 hanger rod to the
heater
Combustion air supply / flue
arrangement
Photon unit heaters may be installed as a
Type C room sealed heater requiring both
a combustion air inlet pipe and a flue pipe
(Type C13, C33 or C53 only) or as a Type B
forced draught heater where the combustion
air is taken from the room space the heater is
installed in and which requires only a flue pipe
exhausting to outdoors (Type B23 or B53 only).
All products of combustion must be flued to
outdoor atmosphere.
The unit heaters are designed to operate safely
and efficiently with either a horizontal or
vertical flue system when installed according
to the specific requirements and instructions.
If the heater is replacing an existing heater,
be sure that the flue is of the correct size and
that the existing flue is in good condition. A
correctly sized flue system is required for safe
operation of the heater.
For testing, the flue pipe should include a
sealable test point. Ideally the test point
should be at least 450mm away from the air
heater flue connection socket. However if
a concentric flue is attached directly to the
connection sockets then the combustion
should be tested through the flue outlet collar
via a drilled test point which must be securely
plugged on completion.
Follow the flue pipe manufacturer’s installation
instructions for making joints, including
connections to the air heater, for passing
through a building element and for support
requirements.
Gasket sealed single wall seamless aluminium
or stainless steel flue pipes are required. All
joints must be sealed to prevent the products
of combustion from leaking into the building.
