7
INSTALLATION
POWER & CONTROL WIRING
1. Connect power supply for the
unit to the correct terminals of
the receptacle.
2. Install wired receptacle into
conduit enclosure. Install
receptacle cover plate provided
with the sub base.
3. A six -position low voltage
connector plug with 24” leads
is provided for 24 volt Class II
wiring connections. The
connector plugs into a mating
receptacle in the side of the
chassis control box that can be
unplugged to facilitate removal
of the chassis for servicing.
Connections between the 24”
leads and thermostat wiring
can be made outside the sub
base enclosure and in
accordance with the specific
wiring diagram affixed to the
chassis. The thermostat wire
connections can be stuffed
back through the hole in the
sub base
CAUTION
: One side of the
unit’s 24-volt control system is
grounded. When wiring the
thermostat, care must be taken
not to ground the red wire,
thereby potentially burning out
the transformer.
CHASSIS INSTALLATION
1. Check all air seals in the
cabinet.
2. After all construction is
complete and the unit location
is thoroughly cleaned, the heat
cool chassis is ready for
installation in the cabinet/wall
sleeve.
3. Unpack heat/cool chassis from
shipping carton. Check for any
shipping damage.
4. Position the chassis in the
cabinet and slide into place.
Keep the chassis level and
square to prevent binding. The
chassis must be pushed into
the cabinet until the draw bolts
screws in the chassis side
panels can engage the
threaded clip in the sleeve.
Alternate turning the two draw
bolts until the chassis is drawn
snugly into the sleeve. Do not
over-tighten the draw bolts.
NOTE:
When handling the chassis,
care must be taken to ensure
that no damage occurs to the
fan wheels. Damaged or
unbalanced fans will cause
excessive noise and will impair
unit performance.
5. Position the plenum and
vertical side duct assembly
over the chassis. While
pushing the plenum assembly
against the inside wall, line up
the plenum slots with the panel
holes and screw the parts
together.
6. Screw the plenum top cover on
to the plenum.
7. Install the ducting to the side
duct flanges as described in
the previous section entitled
“Ducting”.
8. Connect low voltage wiring
harness to the heat/cool
chassis.
9. Plug the heat/cool chassis cord
into the power receptacle in the
sub base.
10. Install the unit air filter into
position.
NOTE:
Ensure that the cord is
pushed well into the cord
recess of the sub base or the
filter will not be able to be
completely inserted.
11. Install front panel.
12. Wipe unit cabinet/wall sleeve to
remove dirt, etc.
13. The unit is now ready for
operation, when supplied with
power from the distribution
panel and when wired to a
thermostat.
