Lts 40-250 Series - Heater Assembly / Joining Of Body Sections - Space-Ray LTU SERIES Installation And Operation Instructions Manual

11.0) LTS 40-250 SERIES — HEATER ASSEMBLY / JOINING OF BODY
SECTIONS
During field assembly of the LTS series heater body sections, the recommended procedure is as follows:
1. Before hanging heater sections, first determine the actual layout of the system (see Section 9 for details). Consideration
must also be taken for flue pipe, fresh air ducting, gas piping, etc. before hanging the heater. Typical suspension
methods are shown in Section 15.2. NOTE: The control box must be mounted to a 10 ft. Alumi-Therm body section (LTS
225 and 250 models). Failure to attach the control box to the flange end as indicated above will void the
manufacturer's warranty. DO NOT relocate the tube support/hanger brackets, especially at the control end of the
heater.
2. Hang each heater body section individually. See Section 15.2 for typical suspension methods. DO NOT attach the heater
body sections together on the ground and attempt to hang the entire system at one time. The weight of the individual
heater body sections can cause misalignment and damage to the heater.
3. Join the body sections together and secure with tube couplings as follows (see diagram on next page):
WARNING: The following coupling tightening instructions must be followed properly to avoid future problems.
a. Place the compression coupling over the end of the tube from one body section, with the tightening bolts located on
the bottom and facing the installer. NOTE: There is a small hole at the centerline of the coupling that can be used
to sight the end of the tube.
b. Partially tighten the bolt nearest the end of the tube (approximately half closed).
c. Slide the ends of the tube from the opposite body section into the coupling. Make sure both tube ends are butted
together.
d. Finish tightening both bolts to 40-60 ft.lbs. torque to ensure a complete seal.
e. Check to ensure that the hardware is completely closed and that the band is seated on the reaction block and
interference pins as illustrated below.
f. Check to see if the reaction block is firmly seated on the tube.
g. Self-drilling screws are provided to prevent any possible movement of the tubes from the coupling. Install the
screws as shown using an electric or air screwdriver with approximately 2500 rpm speed. Pre-punched holes in the
coupling make it easier to install these self-drilling screws.
h. Once all the heater body sections are attached, make sure that the heater system is level. If it is not, slight
adjustments can be made using the turnbuckles. (See Section 15.2.)
^ IMPORTANT: NEVER REUSE A COUPLING. Always install a new coupling only and torque as per instructions above
and the diagrams that follows.
4. The tube at the coupling joints must be covered. Slide the reflectors together and provide a one-inch overlap. (This will
allow for the natural expansion and contraction of the heater when in operation.) Secure reflectors together by sliding
speed clips on the reflector joint edges. One speed clip is required for each side of the reflector. Tighten the reflector
clamps. ^ DO NOT OVER-TIGHTEN^ Make sure that the reflector can slide under the clamp during heater operation.
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Form #43155260
Mar–05