Ltu 80-175 Series - Heater Assembly; Ltu 80-175 Series - Joining Of Body Sections - Space-Ray LTS Series Assembly, Installation And Operation Instructions

5) LTU 80-175 SERIES - HEATER ASSEMBLY
1. Place the flanges of the control end reflector (packaged with the 15' body section) flush with the end of the body reflector.
Secure by sliding the speed clips onto the reflector edges. Evenly space the speed clips on the sides and top of the
reflector to provide a snug fit. Place the foot end reflector (not shown) on the opposite end of the body reflector and
secure as described above. DO NOT relocate the tube supporVhanger brackets, especially at the control end of the heater.
Slide the reflector toward the U-bend and leave a 3" space between the control end reflector and the control box.
2. Attach the control box and gasket to the right hand tube flange and secure with the '4-20 locknuts. The control box must
be mounted with the perforated fresh air plate on top, facing the ceiling.
3. Attach the draft inducer assembly and gasket to the left hand tube flange and secure with the V4-20 locknuts. A flue
restrictor plate Is attached to the draft Inducer weld stud. Make sure this remains In place while the draft Inducer Is
being attached to the heater body. NOTE: The draft inducer can be mounted in either a verticai, a 45° or a horizontai
position. Refer to the diagram on multiple hanging and draft inducer positions (Section 16).
4. Take the end of the SJO cable from the junction box and insert it through the 3/8" connector of the control box. Connect
the wire leads of the SJO cable to "1" and "2" of the terminal block. Refer to the Connection Wiring Diagram (Section 22).
Tighten the screws of the connector.
5. Place the starting collar on the draft inducer and secure with the #8-32 screws and nuts.
6. If the heater is for UNVENTED use, place the exhaust hood (supplied as an accessory) on top of the starting collar. Secure
with the #8 sheet metal screws. The exhaust hood must be mounted only In an upright position and directed towards
the reflector body.
7. If heater is to be vented to the outside of the building, place the flue pipe directly onto the starting collar and terminate
with an approved vent cap.
1/2" MPT Gas Pipe Connection
6) LTU 125-175 SERIES - JOINING OF BODY SECTIONS
Models LTU125-175 -► These models require the use of an additional
5' body section, as shown on the heater dimension sheet. Follow the
instruction below for joining these sections.
1. Join the tube flanges of the body sections together with the gaskets in
between. Secure the flanges with the '4-20 screws and locknuts
provided in the 5' body package.
2. Pull the reflector onto the 15' body section over the reflector on the 5'
body section to maintain approximately an one-inch overlap. Secure
the reflectors by sliding the speed clips on the reflector edges as show
in the diagram. One speed clip is required for each side of the reflector.
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Form #43155010
Fel>04