Water And Steam Coil Piping; Recommendations - Carrier AERO 39MN Installation, Start-Up And Service Instructions Manual

BAFFLE, HEADER
CHANNEL, HAT
PAN, CONDENSATE
CENTERED WITHIN SECTION
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CHANNEL, HAT
Fig. 60 — Secure Spacer
13. On the upstream side of the stacked coils, attach the cen-
ter baffle (see Fig. 59), spanning the two coils with the
crease in the baffle away from the coils, centering it be-
tween the side baffles, and aligning the baffle with the
holes in the coil casings.
14. Install the drain fittings into the pan. Route and secure
the hoses as shown in Fig. 61.
15. For sections that do not have a drain pan (heating only
sections):
a. After the lower coil has been secured in position,
fasten the three hat channel spacer supports to the
top of the coil.
b. Place the upper coil into position directly above the
lower coil, resting on these hat channels.
16. Secure the uppermost coil from the upstream side, so
that the fastening screws provided pass through the ver-
tical angle and the baffles and engage the coil casing.
See Fig. 59.
BAFFLE, TOP
CHANNEL, HAT
BAFFLE, CENTER
Fig. 59 — Apply Gasket
ATTACH WITH 4 SCREWS
TO COIL CASING
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COIL FRAMES
BAFFLE, HAIRPIN
ANGLE
ATTACHED TO COILS
BOTH SIDES
IMPORTANT: ADHESIVE GASKET MUST BE
APPLIED TO THE FULL LENGTH OF THE BOTTOM
BAFFLE MATING FLANGE TO CREATE SEAL BETWEEN
THE COIL SIDE CASING AND THE BAFFLE.
SEE ILLUSTRATION BELOW.
APPLY FLUSH TO THIS EDGE
GASKET, ADHESIVE
BAFFLE, BOTTOM
ATTACHED TO COIL
TUBE SHEET
Fig. 61 — Install Drain Fittings
Water and Steam Coil Piping Recommenda-
tions
GENERAL — Use straps around the coil casing or the lifting
holes (see Fig. 62) to lift and place the coil.
To prevent damage to the coil or coil headers: Do not use the
headers to lift the coil. Support the piping and coil connec-
tions independently. Do not use the coil connections to sup-
port piping. When tightening coil connections, use a backup
wrench on the nozzles.
NOTE: Verify that all vents and drains are capped or plugged
before allowing water or steam flow through any coil. See
Fig. 62.
Piping practices are outlined in the Carrier System Design
Manual, Part 3, Piping Design.
WATER COILS — Typically, coils are piped by connecting
the supply at the bottom and the return at the top. See Fig. 62.
79
BOTTOM BAFFLE
DRAIN
CONDENSATE PAN
GASKET
WASHER
NUT
HOSE CLAMP
HOSE
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CAUTION