Specifications
%3*45&&.)VNJEJUFDI&MFDUSJD)VNJEJGJFS*OTUBMMBUJPO0QFSBUJPOBOE.BJOUFOBODF.BOVBMt1BHF
%JTQFSTJPO
3BQJETPSC
Installation
4. Mount the dispersion tubes on the header with the slip
couplings or hose cuffs:
t 8IFOJOTUBMMJOHTMJQDPVQMJOHTGPS%/EJTQFSTJPOUVCFT
take care not to shear O-rings.
t 4FUTMJQDPVQMJOHPOIFBEFSTUVCPSEJTQFSTJPOUVCFTP0SJOH
is resting on face of tubing.
t 3PUBUFTMJQDPVQMJOHXIJMFQVTIJOHJUPOUPUIFUVCJOH
t 0SJOHTBSFMVCSJDBUFEBUGBDUPSZ*GBEEJUJPOBMMVCSJDBUJPOJT
necessary, DO NOT use petroleum-based lubricant.
5. Allow the dispersion tubes to rest against the bottom of the duct.
6. Position the flange of the L-bracket so it is upstream of the tubes
when the assembly is rotated into position. Fasten the L-bracket
to the end of the dispersion tubes with the provided bolt, lock
washer, and flat washer.
7. Rotate the assembly up until the L-bracket aligns with the
mounting holes in the duct or air handler.
t %/EJTQFSTJPOUVCFT
– Header pitch is duplicated in the L-bracket.
– Dispersion tube and slip coupling must be fully engaged
on header stub for O-rings to provide a seal.
– High end of L-bracket can be fastened tight to duct or
air handler.
– Fastener on low end of L-bracket must be long enough
to compensate for pitch. Use a nut on both sides of
L-bracket and duct or air handler for stability.
t %/EJTQFSTJPOUVCFT
– Fasten bracket to top of duct and use hose cuffs to
compensate for header pitch.
– Before securing hose cuffs with hose clamps on
dispersion tube and header stub, verify that dispersion
tube orifices are directed perpendicular to airflow.
8. Verify that all fasteners are secure:
t -CSBDLFUUPEVDU
t %JTQFSTJPOUVCFTUP-CSBDLFU
t )PTFDMBNQTPO%/UVCFT
t )FBEFSTVQQPSUCSBDLFUGBTUFOFS
9. Secure and seal the header escutcheon plate around the header.
Note:
See Page 32 for steam supply and condensate
drain line connection instructions.










