Hamilton
Home
Products
Canal
Winchester,
OH
43110
61MH0028A
Page
8
SECTION VI: UPFLOW CONFIGURATION
This kit is approved for use in an alcove or closet installations
with an approved air conditioning coil. The upflow coil
cabinets are available in a 28” and 36” height. The upflow
configuration requires either a 20” tall return air cabinet or a
24” tall return air cabinet under the coil cabinet making the
total height of the furnace, coil cabinet and return air cabinet
heights 81” or 93”. To install the coil cabinet assembly and the
return air assembly follow the steps below.
Prior to installing the furnace make sure the holes are cut into
the floor for the refrigerant tubing, the drain line, the line
voltage supply wiring, the thermostat wiring and the
condenser control wiring.
1.
Before installing the coil cabinet on the furnace, be sure
you have enough clearance to install the furnace, the coil
cabinet and the return air cabinet.
2.
Remove the top shipping cover and corner posts.
3.
Remove the bottom shipping cover.
4.
Remove the front access panel (door).
5.
Remove the coil cabinet from the shipping box.
6.
Place the coil cabinet on top of the furnace and secure
with screws.
7.
Turn the furnace and coil cabinet upside down to put the
furnace and coil cabinet in the up-flow position.
8.
Place the return air cabinet at the bottom of the coil
cabinet. Use the screws provided in the kit to secure the
return air cabinet to the coil cabinet.
9.
Slide it into position on the supply air duct connector. Use
the duct collar to secure the supply air duct to the top of
the furnace. Be careful when installing the duct collar not
to use pointed screws in the control box and make sure no
screws are touching any components or wires.
10. Place the cooling coil into the coil cabinet. Follow the
instructions provided with the outdoor cooling unit and
the evaporator coil to properly connect the refrigerant
piping to the evaporator coil and the drain lines to the
condensate drain pan. Make sure the coil and drain pan
are all the way to the back in the cabinet so the hole in the
center of the drain pan lines up with the hole in the center
of the coil cabinet.
11. Place the cooling cabinet front door on the unit by
inserting the tabs in the bottom of the door into the slots
in the coil shelf, line up the strike in the front flange of the
top cover and push the two strikes into the both latches on
the front flange on the door.
NOTE: The installer must provide a strap that attaches to
the top of the furnace and is secured to the alcove or
closet wood framing
12. The 24” tall return air cabinet requires two standard 16” x
16” x 1” and one 24” x 24” x 1 disposable air filters in the
filter tracks located inside the return air cabinet.
13. The 20” tall return air cabinet requires two standard 18” x
18” x 1” and one 18” x 20” 1” disposable air filters in the
filter tracks located inside the return air cabinet.
14. Install a louvered grille in the front of the return air
cabinet.
Figure 12: Typical Upflow Installation
SECTION VII: LINE VOLTAGE WIRING
Power Supply
The furnace internal wiring is complete except for the power
supply and the thermostat wires. See wiring diagram and/or
Tables 6 and 7 for wire size, fuse/circuit breaker size, and
ground wire sizes. The use of cable connectors on incoming
power supply wires to relieve any strain on wiring is
recommended. Follow the steps below to connect the power
supply wires.
Single Circuit Line Wiring Connections
1.
Remove the control box cover.
2.
Install the cable connectors on the 7/8” dia holes on the
right side of the control box.
3.
Strip ½” of the insulation on the end of each wire.
4.
Insert the wires through the holes in the casing and
through the cable connectors.
5.
Insert the black wire into the L1 screw terminal on the
first circuit breaker from the top and tighten the set screw
to clamp down on the wire.
6.
Insert the white or red wire into the L2 screw terminal on
the first circuit breaker down from the top and tighten the
set screw to clamp down on the wire.
7.
If you are using a single circuit for a 12kW, 15kW or
20kW model you will need to install a black jumper wire
from the L1 terminal on circuit breaker #1 to the L1
terminal on circuit breaker #2 and a white or red jumper
wire from the L2 terminal on circuit breaker #1 to the L2
terminal on circuit breaker #2. Refer to Figure 14 for
circuit breaker locations.
Note: The 100-amp 4 Pole Jumper Bar Assembly part
number 68BAE001 can be used in place of the jumper
wires.
