Form RZ-NA I-VR-HK (Ver A.1) P/N 205403 (Rev 2), page 2
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MANUFACTURER OF HEATING, COOLING, AND VENTILATING SYSTEMS
Trademark Note: Reznor®is a trademark.
10/14 Form RZ-NA I-VR-HK (Verson A.1)
Hanger Kit
Instructions
1. Chain - Determine length of chain required for heater to be suspended at
established mounting height. To allow for expansion, chain length between the
suspension point and the heater must be a minimum of 12" (including "S"
hooks and turnbuckle, if used). When heater is installed, all chains connected
to tubes must be plumb. Cut chain to determined lengths.
IMPORTANT: When cutting chain, be certain to remove the entire link
(one link consists of two loops).
At each building suspension point, attach an "S" hook and chain length. If
turnbuckles are used, attach a turnbuckle to the “S” hook at the suspen-
sion point or at the heater. Use of turnbuckles is recommended for level-
ing. Close “S” hooks at building suspension points.
2. Suspend Burner/Control Box with Attached Combustion Chamber
Tube - Follow the instructions in the heater installation manual to prepare
the burner/control box and combustion chamber for suspension. Suspend
the box with attached combustion chamber tube as illustrated inFIGURE
1.
On each end of the combustion chamber tube, slide the hanger bar up
over the retainer wire. Attach an “S” hook at the center hole in
the bar. Attach a turnbuckle or chain to the “S” hook. (A turnbuckle is
recommended for leveling, either here or at the suspension point.)
Attach chain from a single suspension point (Step 1) to the “S” hook.
Chains must be plumb. Using a turnbuckle is recommended for leveling.
3. Suspend Heat Exchanger Tubes - Following the instructions in the heater
installation manual, attach a tube bracket and retainer wire to
each heat exchanger tube and connect the tube to the previous tube with
the compression coupling. (NOTE: If the are going to be angled,
attach the end of the retainer wire with the sharper 45° bend so that it will
be on the lower side.) Use the hanger bar, “S” hook, and optional turn-
buckle to suspend the tube from the chain. Follow the instructions in Step
2) and refer to FIGURE 2 for arrangement of chains.IMPORTANT:
Suspend each tube with chain as the tube is installed.
Straight tubes downstream adjacent to an “L” or “U” tube require two
suspension points.
4. Leveling - The tubular system must be level. Before operating, use a spirit
level to verify that the burner/control box and all tubes are level. Level system
by adjusting chain or turnbuckles.
5. "S" Hooks - Close all "S" hooks being careful not to the length of
the chains. If the are being angled , close “S” hooks after
have been installed and angled.
Complete the installation by following the instructions and complying with all re-
quirements in the heater installation manual.
WARNING: The hanger kit is to be selected and installed by a quali ed service person in
accordance with these instructions and in compliance with all codes and requirements of
authorities having jurisdiction.The qualied agency performing this work assumes responsibility
for this installation.
FIGURE 2 - Chain attaches
to Hanger Bar with an “S”
Hook or Turnbuckle
IMPORTANT: Suspend
each tube with chain as
it is installed.
NOTE: Illustration shows
Suspend tubes
before installing .
NOTE: Before installation,
wipe any excess corrosion
inhibitor from the heat
exchanger tubes. Failure to do
so could result in excessive
smoke from the surface of the
tubes on initial startup.
REZNOR
