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Locate and Install Heat Exchanger (Block Assembly)
Insulation Wrapper(s), see Figure 23.
1. - Insulation
wrapper is provided as one-piece that covers block
from front to rear. Drape insulation wrapper over
block assembly with supply manifold hole to the
rear. Starting at top rear, pull insulation under
horizontal channel, open slits and pull insulation
around supply manifold and top brackets on each
side. Pull both sides of insulation back between
vertical channel and rear casting. Open slit at
bottom and position over lower rear bracket. In
the front, starting at the top, pull insulation under
horizontal channel. Open slits and pull insulation
around top brackets. On each side, pull insulation
between vertical channel and front section, position
around door hinge pockets. Open slit at bottom and
position insulation around lower front bracket. Tuck
bottom edges behind lower tie bars.
2. - Insulation
wrapper is provided in modular pieces that t
between and join behind each frame rail. If the
insulation width matches the distance between frame
rail brackets, it’s the proper size for that location.
a. Rear Insulation Wrapper - Starting at the rear,
drape rear wrapper over block assembly with
supply manifold hole facing the rear as shown
in Figure 23. Pull insulation under horizontal
channel, open slits and pull insulation around
supply manifold and top brackets on each side.
Pull both sides of insulation back between
vertical channel and rear casting. Open slit at
bottom and position over lower rear bracket.
Tuck bottom edges behind lower tie bar.
b. Center Insulation Wrapper(s) - 12 thru 18
Section Block Assembly.
Drape center wrapper over block assembly, align
top notches with top frame rail brackets. Push
insulation behind top and side frame rails along
both edges, front and rear. Tuck bottom edges
behind lower tie bars.
c. Front Insulation Wrapper - Drape Wrapper over
Block Assembly. Starting in the front, at the top,
pull insulation under horizontal channel. Open
slits and pull insulation around top brackets.
On each side, pull insulation between vertical
channel and front section, position around door
hinge pockets. Open slit at bottom and position
insulation around lower front bracket. Push rear
edges of insulation behind center section frame
rails. Tuck bottom edges behind lower tie bars.
Figure 23: Heat Exchanger Insulation - One Piece and Modular Wrappers