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The following are suggested specifications for the Zoneline
®
2900 Series Packaged Terminal Air Conditioner, the 3900
Series Packaged Terminal Heat Pump and the 5800 Series
Packaged Terminal Heat Pump.
The contractor will furnish Packaged Terminal Air Conditioners
of the sizes and capacities shown on the schedule and in the
specifications. The units shall be located as shown on the
drawings and each shall consist of a chassis, room cabinet,
wall case, sub-base if specified, and outdoor grille.
Units shall be listed by UL, and ARI and cUL certified as to
capacity and efficiency and shall be GE Zoneline
®
models
or equal. Unit dimensions shall not exceed 42-1/8" wide and
16-1/4" high with room cabinet in place.
Units shall be designed to operate on (208) (230) (265) volts,
60 Hz., single-phase power.
Chassis. The air conditioner chassis shall be the standard
product of the manufacturer and shall be shipped in protective
cartons to prevent damage. Cartons shall be appropriately
marked at the factory with wording sufficient to warn handlers
against improper stacking, up-ending, rolling or dropping.
The chassis shall be the slide-in type, ready to operate after
installation.
Each shall consist of the following sections and components:
• Each unit shall have a matching, easily removable,
textured finish, wrap-around room cabinet molded of high-
temperature styrene to resist corrosion and damage. The
room cabinet shall have slide-out washable filters accessible
without requiring removal of room cabinet from chassis;
• Hermetically sealed refrigerant system with external
vibration isolated rotary-type compressor, condenser and
evaporator coils and capillary refrigerant control. Cooling
shall be possible to outdoor temperature of 35°F without
damage to the compressor. Airflow system consisting of one
permanently lubricated two-speed fan motor for the outdoor
fan and a separate permanently lubricated two-speed fan
motor for the indoor fan. Outdoor fan shall be multi-blade
axial-flow design made of non-corrosive material. Indoor fan
shall be of a design to optimize airflow and operating sound.
All motors on the exterior side of the weather barrier shall
be of an enclosed design to reduce the effects of moisture
and corrosion;
• Line-cord connected units shall require a line cord power
connection kit with integral Leakage Current Detection
and Interruption device or Arc Fault Current Interrupter
as required by National Electrical Code and Underwriters
Laboratories. The unit shall have a universal resistance
heater with output determined by connection to the power
source with the appropriate power connection kit to provide
specified heat output;
• A fan-cycle switch to permit continuous fan operation or
fan cycle operation, independently selectable for heating
and cooling operation;
• Fan-only operation in either high or low fan speed selectable
by room occupant;
• A positive cooling condensate disposal system which meets
the test requirements of applicable A.R.I. Standard 310-04
(for Packaged Terminal Air Conditioners) and 380-04 (for
Packaged Terminal Heat Pump) (80°F dry bulb, 75°F wet
bulb, 80% relative humidity);
Suggested Bid Form Specifications
• Condenser and evaporator coils to be constructed of copper
tubing and aluminum plate fins designed to achieve EER and
COP rating of the unit;
• Indoor and outdoor airflows that match the capacity of the
coils for efficient heat transfer. Water blow-off shall not occur
on the indoor coil;
• Adjustable indoor discharge air louvers that provide a 50° off
vertical air pattern with an alternate position to provide a 40°
off vertical air pattern;
• Easily accessible controls for selection of unit operation
and thermostat setting. Controls shall be covered by a
hinged door;
• Air discharge area accessible for cleaning without tools
when room front is removed for 2900 and 3900 Series;
• Positive-closing, manually controlled, three-position fresh-air
vent capable of providing selection of fully open, partially open
or closed setting. Vent door is to be secured for shipping;
• Solid-state thermostat control to sense room temperature;
• Electronic temperature limiting with seven independent
heating and cooling settings to limit maximum and minimum
temperatures without restricting movement of thermostat
control knob;
• Freeze Sentinel
™
to automatically activate the electric
resistance heater and fan motor to warm and circulate indoor
air to help prevent damage due to freezing temperatures.
Freeze Sentinel shall operate as long as unit is connected
to powered electrical circuit and unit shall provide ability for
owner to defeat the Freeze Sentinel operation;
• Heat Sentinel to automatically activate air conditioner
operation when the unit is in the STOP setting when the
room temperature warms to 85ºF and turns air conditioner
operation off when the room temperature cools to 80°F, if
selected by owner;
• Compatible with two-wire Central Desk Control systems;
• Remote Thermostat compatibility with Class 2 remote
thermostat;
• Connections to interface with a transfer fan to move air into
another room;
• Connections to interface with occupancy sensors;
Unit shall have means of electrical connection listed by
Underwriters Laboratories and compatible with the unit’s
required voltage and ampacity in conformance with National
Electrical Code
®
(NEC) and local codes.
Additional specifications for GE Zoneline
®
3900 or 5800 Series
Packaged Terminal Heat Pump
Heat pump units shall provide operation that will either:
A) automatically phase-in partial electric resistance heat,
if outdoor temperature is below 46°F, simultaneously with
heat pump if heat pump alone is unable to maintain room
temperature; or B) use partial electric resistance heat
simultaneous with heat pump operation any time the outdoor
temperature is below 45°F. Selection of A or B operation is
made by means of a selector switch concealed from room
occupant. In either A or B operation, the unit will switch
to full resistance heat if room temperature continues to
decline or the outdoor temperature falls below 25°F. If the
outdoor temperature is above 46°F, unit will lock-out electric
resistance heat and operate on heat pump only.