Reznor VR Unit Installation Manual - Manual (Page 14)

Form I-VR, P/N 205202 R13, Page 13
FIGURE 12 -
Attaching Hanging
Chain at Tube
Suspension Points
6.2.3 Install the Heat
Exchanger Tubes
and Turbulator
Strip Sections
There are very important steps that must be followed to suspend and assemble
this tubular radiant heater. Suspension and field assembly are the responsibil-
ity of the installer. Follow all instructions carefully.
1. Identify the heat exchanger tubes and parts packaged with them (Refer to
the illustrations in FIGURES 13A-13D).
Refer to illustrations
in FIGURES as noted.
Follow Steps in order.
2. Install the First Heat Exchanger Tube
a) Determine if the first heat exchanger tube is straight, “U”, or “L”. (See con-
figuration requirements, Paragraph 4.1, for placement of 5-ft, “U” or “L”
tubes.) If the first tube is a “U” or “L”, follow the instructions shipped with
the option package.
NOTE: Reflectors
shown here will
be installed after
all chains are in
place.
Hanger Bar “S” Hook
Chain attached to suspension point.
FIGURE 13B - Heat Exchanger Tubes (Straight, “U”, and “L”)
Straight Heat
Exchanger Tube,
10 ft (3M) or 5 ft
(1.5M), Option
UA1
“L” Heat Exchanger
Tube, Option UC2
“U” Heat
Exchanger
Tube, Option UB3
FIGURE 13C - Tube Coupling with Tighten-
ing Bolts and Two Self-drilling Screws
(coupling has pre-punched holes; self-drill-
ing screws attach coupling to tubes and
vent pipe)
FIGURE 13D - One
Section of Field-Installed
Turbulator Strip
FIGURE 13A - Wire
Reflector Retainer,
Hanger Bar, U-Bolt
and Tube Bracket
Important NOTE: Before installation, wipe any excess corrosion inhibitor from the
heat exchanger tubes. Failure to do so could result in excessive smoke from the sur-
face of the tubes on first startup.
If installing a straight tube, prepare the tube by attaching a tube bracket
(See FIGURE 14.) within 12” (305mm) of the downstream end of the tube.
Slide the threaded “U” bolt over the tube and through the bracket; attach
FIGURE 14 - Attach
the tube bracket and
wire reflector retainer
to the heat exchanger
tube.
Tube
Bracket
U Bolt
Nuts
“Hook” Wire Reflector
Retainer to Tube Bracket
(Metal hanger bar is not
illustrated. See FIGURE 12.)
NOTE: One “hook” of the wire
retainer is bent 75° and the other
45°. If the reflector is going to be
rotated, be sure the side with the
45° bend will be at the lower side.