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1. The recommended rough-in wall opening is 16 -¼"
(412 mm) high by 42-¼" (1073 mm) wide.
2. The wall sleeve must be installed level side to side and
front to back, and extended outdoors at least ¼"
(6 mm) for proper caulking and sealing. No fasteners are to
be installed in the bottom of the sleeve.
3. The unit may be mounted flush with the floor. Any carpet
and pad height should be considered to insure proper air return.
4. It is recommended that walls less than 4" (102 mm)
thick use a subbase or other means of sleeve support.
5. Refer to the dimensional drawings for wall sleeve
installation when a subbase or lateral duct is used.
6. The front panel is shipped with the chassis, and secures
with two screws (provided).
7. For total elimination of cooling or heat pump
condensate, a condensate drain kit must be used in conjunction with an internal condensate
drainage system
8. The discharge louvers are shipped from the factory in a
position to provide the maximum air circulation. The louvers can be installer/owner
adjusted to provide air discharge 10° from the vertical.
9. The return air louver section is easily removed for
access to the fan cycle switch, emergency heat switch and vent lever. The louver can be
secured to the front panel, thereby restricting access, by installing two field-supplied
screws.
10. On 265 V units, 3/8" (10 mm) conduit (factory
accessory or field-supplied) attaches directly to the unit control box, with a 90°
connector, to form a permanent connection. The conduit is required to meet NEC Codes.
11. All 265 volt units include time-delay cartridge fuses
for overcurrent protection.
12. A freeze-up sensor on the outdoor coil of heat pump
models automatically switches the unit to electric heat mode. The actual heat pump
switch-over point is dependent on indoor and outdoor air flow, temperatures, humidity and
unit capacity.
13. Condensate is pumped to the condenser coil where coil
heat and air movement evaporate the majority of the moisture. Any excess is drained off.
The following standard options are available on a
build-to-order basis and are not field-supplied. All of the 230/208 volt models are
cord-connected. The 265 volt models require conduit to form a permanent connection. This
conduit can be field-supplied or ordered as a separate accessory (refer to hard wire kits
on the accessory list). Refer to local codes for complete electrical requirements.
NOTE: ONLY ONE OPTION PER UNIT CAN BE USED.
Remote Thermostat "RT"
This option is to be used when the specification calls for
remote, wall-mounted, temperature sensing and control. The PTAC unit includes the
necessary transformer, relays, and low voltage terminal board for proper interface to the
following 24 volt thermostat and thermostat sub-base combination:
TYPE THERMOSTAT + THERMOSTAT SUBBASE
Manual TAT99TM TAT99SM
Changeover (T87F2873) (Q539J1006)
Central Desk Control "DC"
Central Desk Control is available on all models, and
provides extra protection in areas which are not consistently occupied such as hotels and
motels. When the room is unoccupied, the central desk can turn off heating and air
conditioning service. While in this mode, the PTAC would be able to sense low
temperatures, and
provide heat to its environment, preventing cold weather
damage to facilities, contents and plumbing. Included with this PTAC option is a normally
closed relay which can be wired, via a unit-mounted terminal board, to a remote central
station, such as the front desk of a hotel.
Power at the PTAC controls can be interrupted from the
central desk with a field-supplied 24 volt connection. Low indoor temperature protection
is standard with this option. In the "unoccupied" mode, power to the PTAC
controls is interrupted by the central desk control. Should the room temperature fall to
43°F, the PTAC will automatically override the central desk control and energize the fan
motor and electric heater to warm the space to approximately 58°F, thus preventing
possible freezing and bursting of water pipes. The PTAC then returns to the
"unoccupied" mode. Full user control is restored to the PTAC once the central
desk deactivates the 24 volt power supply ("occupied" mode).
Seacoast Protection "SP"
For additional protection, when a PTAC unit is to be
installed in a coastal or corrosive environment the "SP" option is strongly
recommended. In addition to the unit's standard features, the entire outdoor coil is
submerged in a specially formulated enamel coating, then oven cured for a tough,
corrosion-resistant finish.
Please contact your sales representative regarding use of
the seacoast protection option and seacoast protection related warranty coverage. |
