Heater Assembly Instructions - Modine Manufacturing MRL Series Installation And Service Manual

3.0 Installation •

Heater Assembly Instructions

Heater Assembly Instructions
At least two people are required to assemble and hang this heater. Failure to follow these
instructions can result in property damage, serious injury, or death.
Read and understand the installation, operation, and maintenance instructions
thoroughly before installing or servicing this equipment.
Only trained, qualified gas installation and service personnel may install or service this
equipment.
Remove the burner end and U-end tube and reflector assemblies from the main box and place end-to-
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end in assembly area. Remove the cardboard inserts from each assembly and rotate 180°. Position each
tube and reflector assembly on top of the cardboard inserts with the "U" end on the outside and tubes
facing upward (see Fig. 3.3).
Align both tube and reflector assemblies, then carefully slide the assemblies together, guiding the
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radiant tubes into one another. The U-end reflector will slightly overlap the burner end reflector. The
tube and reflector assemblies are in the correct position when the reflector screw holes are aligned (see
Fig. 3.7 on page 14).
Using the four (4) #10 screws provided in kit contents box and a 5/16" nut driver, secure the reflectors
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together so that the screws are hand tight. Do not overtighten as this will prevent the expansion and
contraction of the reflectors.
Figure 3.3 • Assembly Layout
Conduit
Glo-Bar
Burner
Box
WARNING
!
Reflector
Burner Tube
Exhaust
Diffuser
Cardboard
Cardboard
Insert
Burner End Tubes and Reflector
Combustion
Tube
Insert
12
MRL
Cardboard
Insert
Cardboard
Insert
U-End Tubes and Reflector
Series