4
803877 Rev. 00
230-208 and 115 volt units are true “cord connected
units”, and are provided with a service cord of the
LCDI (Leakage Current Detection Interrupter) type,
intended to be plugged in to a wall receptacle. The
LCDI cord is capable of detecting some of the common
faults experienced with aging power cords, and
interrupts power to the cord before a hazardous
condition can evolve in the cord.
WARNING:
To avoid property damage, bodily injury
or death, the unit must be used on a grounded power
supply only. The unit will be grounded through the
service cord plug and matching receptacle as long as
the branch circuit remains grounded.
DO NOT:
Change the length of the service cord.
Bend the connector blades or otherwise alter
service cord plug configuration.
Use extension cords.
CHASSIS INSTALLATION
Unpack heat/cool chassis from shipping carton.
Check for any shipping damage. Spin the fan wheels
manually to confirm free rotation. Inspect refrigerant
piping to ensure there is no damage or potential
chafing. Report any shipping damage to the carrier
immediately.
Check the interior of the installed wall sleeve. Clean
out any dirt or debris that may have accumulated.
Replace air seals that are damaged or missing.
Heating/Cooling Chassis Installation
1.
Locate the wall sleeve seal shipped with the unit
and apply it to the top front flange of the wall
sleeve, running even with the bottom edge of the
flange (see illustration).
2.
The chassis must be level from side-to-side and
sloped toward the outdoors from front-to-rear in the
order of 1/8 inch per foot, once the chassis side
flanges are drawn up tight to the wall sleeve using the
four flange screws. If the sleeve was originally
installed with a slope in the bottom of the sleeve in
the order of ¼” per foot downward from the indoor to
outdoor side, the chassis will still operate properly. A
chassis slope downward (backward toward the room)
from outdoor-to-indoor side is not permissible and
must be corrected before the unit is operated.
3.
There are vertical air seals at the rear of the unit that
surround the condenser outlet that will engage and
“seal” against the rear grille. However, in some cases,
such as when an extra deep wall sleeve is used, or
some other variation is encountered that prevents the
air deflectors from sealing against the outdoor grille,
then steps must be taken to add anti-recirculation
baffles to prevent hot condenser air from short-
circuiting back into the air intake via the void space
created in behind the outdoor grill.
4.
With the front panel removed, position the chassis in
the wall sleeve cabinet and slide into place. Keep the
chassis level, square, and centered to prevent binding.
Push from the ends of the front cover where they
attach to the coils support, DO NOT push from the
electrical box cover or the middle of the front cover.
The chassis must be pushed into the wall sleeve until
the side flange seals of the chassis engage the sleeve.
Alternately tighten each of the four draw screws until
the chassis is drawn snugly into the sleeve. Do not
over-tighten the draw screws.
