Technical data

Page 14
Page __________ of __________
Installations of INFRA-REZ
®
Model TR heaters in the United
States must be in accordance with the National Fuel Gas Code
ANSI Z-223.1 (latest edition) and all local codes. In Canada,
installations must be in accordance with the latest edition of
CAN/CGA B149.1 and B149.2 and any local authorities having
jurisdiction.
To allow for thermal expansion, INFRA-REZ
®
Model TR heaters
must be suspended with chain and must have flexible gas and
electric connections.
Chain must have a minimum load-carrying capacity of 200 lbs.
Depending on the type of building construction, the installer
may either attach the chain support directly to the building or
attach and extend a support to the location needed (all chain
supporting tube sections must be plumb). SUPERSTRUT
®
brackets or a comparable metal strut material is well suited as
a support structure that requires numerous suspension points.
INFRA-REZ
®
Model TR heaters must be level. The use of turn-
buckles is not required but is recommended to assist in level-
ing the heater. If used, turnbuckles must be of steel or mal-
leable iron. Optional chain kits and turnbuckle kits are avail-
able from Reznor.
Each burner/control box is equipped with a grounded, plug-in
electrical cord. Gas connection must be with either an expan-
sion coil or an approved stainless steel flexible connector.
Optional flexible connectors are available from Reznor. Flex-
ible connectors do affect gas pressure. Pressure drops for
flexible connectors available from Reznor are listed below. (Re-
quired gas pressures found in Technical Data Tables.)
INFRA-REZ
®
Model TR heaters are designed with these instal-
lation advantages:
-Modular turbulator strips with interlocking con-
nections
All tube packages include a field-installed turbulator strip. The
turbulator strip is slid into the tube in small, easy-to-handle
sections. By interlocking the sections as they are installed,
the required number of sections can be slid into the tube creat-
ing the full-sized turbulator strip.
-Reflector retainers
Reflectors are required to direct radiant heat. Reflectors, re-
flector brackets, and hardware “kits” are included in the tube
packages. The reflector retainers extend over the installed
reflectors securing the reflector to the tube.
-Terminal strip for thermostat connection
The burner/control box is equipped with a terminal strip for
connection of a remote thermostat, or the thermostat may be
attached to the heater by using an optional thermostat bracket.
Up to six heaters may be controlled by one thermostat or
time clock by installing a multiple heater control option.
-Unique slip-fit tube connections (U.S. Patent
No. 5,460,415)
All tubes are joined by a slip-joint and connected with clamps
and hardware. All required parts for each tube connection
are individually packaged and shipped in the tube carton. The
unique slip-fit connection allows connecting tubes to be a one-
person operation.
Installation
INFRA-REZ
®
HEATER Model TR
Suspended tube
section
Combustion
products
flow direction
Step 1
Tube section to
be added (suspend
at opposite end).
Step 2
Step 3
Tighten bolts securely
GAS PRESSURE DROP ("W.C.) THROUGH 24" STAINLESS STEEL FLEXIBLE
CONNECTORSAVAILABLE FROM REZNOR
Size 50 75 100 125 150 175 200
mbar
0.62 0.62 0.62 1.25 1.87 1.99 2.24
in. w.c.
0.25 0.25 0.25 0.50 0.75 0.80 0.90
mbar
0.12 0.12 0.25 0.37 0.50 1.00 1.25
in. w.c.
0.05 0.05 0.10 0.15 0.20 0.40 0.50
13 mm (1/2") I.D.
19 mm (3/4") I.D.
RECOMMENDED MINIMUM MOUNTING HEIGHTS
Reflector Model (000 BTUH Input)
Position 50 75 100 125 150 175 200
Meters 3.4 3.7 4.0 4.6 4.9 5.2 5.5
Feet 11 12 13 15 16 17 18
Meters 2.7 3.0 3.4 4.0 4.3 4.6 4.9
Feet 9 101113141516
Meters 2.4 2.7 3.0 3.4 4.0 4.3 4.6
Feet 8 9 10 11 13 14 15
Horizontal
30° Angle
45° Angle