this can be overcome by applying a slight force to the base of
the blower. Continue sliding blower in until hole in side plate
flange aligns with the hole in the unit base. Secure using screw
removed in Step 7. Reconnect indoor-fan motor leads and
insert wire tie back into unit control box.
13. Cover the horizontal duct openings. Duct covers can be
ordered as an accessory or field fabricated (See Fig. 20).
14. Reinstall the indoor coil and indoor blower access panels.
15. After completing unit installation, perform all safety checks
and power up unit.
CONFIGURING UNITS FOR DOWNFLOW (VERTICAL)
DISCHARGE-ECM UNITS (048–060)
Units 048–060 (Units with ECM Indoor Blower Motors) are
shipped in a horizontal configuration. To convert a horizontal unit
for downflow (vertical) discharge, perform the following steps:
Before performing service or maintenance operations on the
system, turn off main power to unit and install lockout tag or
electrical shock could result.
1. Open all electrical disconnects and install lockout tag before
starting any service work.
2. Remove indoor coil access panel (See Fig. 12).
3. Locate lances in unit base insulation that are placed over the
perimeter of the vertical duct opening cover (See Fig. 13).
4. Using a straight edge and sharp knife, cut and remove the
insulation around the perimeter of the cover. Remove the
screws securing the cover to the unit base and slide out the
cover. Discard the cover.
5. Remove indoor blower access panel (See Fig. 14).
Fig. 11—Optional Heat Pump Mounting Frame
C95013
NOTES:
1. Material consists of angle iron — 31.8 mm (1-1/4 in.) to 38 mm
(1-1/2 in.) commerical standard.
2. We ldframe together.
3. Pa int with z
inc-rich paint (rust-proof).
1
4
2
3
959 mm
(37 3/4 in.)
1
2
3
4
305 mm (12 in.)
TO
610 mm (24 in.) (4) REQ.
1010 mm
(39 3/4 in.) (2) REQ.
909 mm (35 3/4 in.) (2) REQ.
38 mm (1 1/4 in.)
406 mm (16 in.) (8) REQ.
1060 mm
(41 3/4 in.)
Fig. 12—Indoor Coil Access Panel
C95014
ACCESS PANEL
(REMOVE SCREWS)
10