johNSoN coNtroLS
2-30
ForM 102.20-N1 (1109)
installation
1. Preparation
a) Pinpoint the exact location to attach the pipe
chase.
b) Ensure enough space will remain to apply
pipe fittings with insulation, inside the pipe
chase.
c) The pipe chase height should align with the
unit height.
2. Apply Gaskets
a) Apply provided 1/4" x 2" neoprene gasket to
the underside of the air handler roof overhang
(
see Fig. 2-41).
b) Apply gasket provided by curb vendor to top
of curb.
c) Apply 1/4" x 2" neoprene gasket to the pipe
chase (vertical gaskets first, then horizontal
gaskets). Keep the gasket aligned with the
outside edges of the pipe chase housing
(see
Fig. 2-42).
Horizontal gaskets must completely
overlap vertical gaskets in all four
corners (see Fig. 2-42).
Fig. 2-41 – inStAll gASKEt undER ROOF
OVERhAng
Apply gasket
AIR HANDLER
Apply gasket
AIR HANDLER
LD11564
PiPE ChASE inStAllAtiOn
See “Ship loose Parts” to identify
gaskets and hardware items.
Pipe chase should be installed before
piping is connected.
tools Required
• Screw Gun
• Complete set of mechanics hand tools.
Materials Required
• Shipped loose package containing 1/4"-14 x 1"
Self-drilling Screws w/gasket, Caulking, 1/4" x
2" Neoprene Gasket.
•
When unit purchased with Baserail:
Pipe Chase
Baserail Covers, 3/8"-16 x 1-1/2" Bolts and Lock
Washers.
Procedure
Never use silicone caulk/sealant or
caulk/sealant containing silicone in or
on any air handling equipment. [Only
exception is when provided (high tem-
perature) with gas heat venting]
The top and bottom flanges are inside
pipe chase. Separate cover angles are
used on external vertical seams.
Before installing pipe chase, remove
any self-drilling screws from the top
and bottom raceway and side panel
that may interfere with the installation
of the pipe chase or trim angles.
Summary of Contents for YORK SOLUTION LD09624
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