Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual page 188

4. Remove the fastening screws of the uppermost coil
from the upstream side. Note that the fastening screws
pass through the vertical angle, baffles, and coil cas-
ing. See Fig. 174. Removal of the fastening screws
may require reaching through an opened damper as-
sembly, reaching through a filter track after filters are
removed, or removing a coil immediately upstream.
CAUTION
Do not handle the coil by the headers or connection nip-
ples, as irreparable damage might occur that is NOT cov-
ered by warranty. Protect the finned surface from damage
during all handling and shipping.
5. Slip the foam sealing sleeves off the connection nip-
ples before removing the coil and set the sleeves aside.
6. The upper coil may now be hoisted out through the top
opening, or carefully slid out either side of the cabinet.
Sections where the top frame rail cannot be removed
may require slightly tipping of the coil from the verti-
cal position, to clear the upper frame rail and seal.
7. On the upstream side of the stacked coils, remove and
set aside the center baffle spanning the two coils (see
Fig. 174).
8. For sections that do not have a drain pan (heating only
sections), remove the three hat channel spacer supports
fastened to the top of the lower coil, and set aside.
BAFFLE, LEFT
CHANNEL, HAT
PAN, CONDENSATE
CENTERED WITHIN SECTION
10. Remove the intermediate condensate drain pan.
11. Remove the spacer (hat channel) secured to the top
12. Remove the fastening screws of the lowermost coil
13. Slip the foam sealing sleeves off the connection nip-
14. The lower coil may now be hoisted out through the top
15. Inspect the adhesive backed gasket applied to the low-
BAFFLE, TOP
CHANNEL, HAT
BAFFLE, CENTER
Fig. 174 — Coil Frames and Baffle
188
9. For sections that do have a drain pan, remove the two
hat channel spacer supports from the bottom of the coil
section and set aside.
center of the lower coil casing (see Fig. 175) and set
aside.
from the upstream side. Note that the fastening screws
pass through the vertical angle, baffles, and coil cas-
ing. See Fig. 174. Removal of the fastening screws
may require reaching through an opened damper as-
sembly, reaching through a filter track after filters are
removed, or removing a coil immediately upstream.
CAUTION
Do not handle the coil by the headers or connection nip-
ples, as irreparable damage might occur that is NOT cov-
ered by warranty. Protect the finned surface from damage
during all handling and shipping.
ples before removing the coil and set the sleeves aside.
opening, or carefully slid out either side of the cabinet.
er baffle, spanning the entire unit, on the surface that
contacts the coil (see Fig. 174). If damaged, remove
the remainder of the old gasket and replace.
COIL FRAMES
BAFFLE, RIGHT
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.
BAFFLE, BOTTOM
APPLY FLUSH TO THIS EDGE
GASKET, ADHESIVE
BOTTOM BAFFLE
a39-2920