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54
HORIZONTAL OR VERTICAL UNIT — DUAL COIL
REMOVAL (39LA, LD UNITS — SIZE 25)
NOTE: Item numbers are in Fig. 56 unless otherwise indicated.
1. Refer to Fig. 10 for service area requirements.
2. Disconnect piping (Item 5).
3. Horizontal Unit, 39LA — On top panel (Item 3) remove
screws located directly above side panels (Items 2 and 6). Top
panels may be removed from unit to provide more work-
space, but it is not required.
Vertical Unit, 39LD — Through fan access door (Item 2,
Fig. 55), remove screws (Item 3, Fig. 55) holding angle (Item
4, Fig. 55) to top of coil panels (Item 7, Fig. 55).
Remove rear panel (Item 17, Fig. 55) and remove baffle angle
screws (Item 4) holding top baffle to coil.
4. Remove side panel(s) (Item 6).
NOTE: Vertical units may require support of fan section after
removal of side panels.
5. If accessory is present, remove accessory side panel (Item 1)
on left side of unit. Detach filter track support bracket if
upstream accessory is a filter.
6. Remove screws from horizontal baffle (Item 8). Leave baffle
attached to upper condensate pan (Item 9).
7. Remove screws from inside baffles (Item 7). Leave baffles
attached to left side panel (Item 2).
8. Slide coils and header and baffles from unit.
9. Replace coils by reversing proceeding Steps 1-8.
Fig. 56 — Horizontal or Vertical Unit — Dual Coil Removal (39LA,LD Units, Sizes 25)
LEGEND
1 —
Accessory Side Panel
6
—
Right Side Panels
2 —
Left Side Panel
7
—
Inside Baffle
3 —
Top Panels
8
—
Horizontal Baffle
4 —
Baffle Angle Screws
9
—
Upper Condensate Pan
5 —
Piping
10
—
Baffle Screw