Suggested Bid Form Specifications - GE Zoneline Data Manual

Suggested Bid Form Specifications

The following are suggested specifications for the 8500 Series
Vertical Packaged Terminal Air Conditioners and Heat Pumps:
The contractor shall furnish Vertical Packaged Terminal
Air Conditioners or Heat Pumps of the sizes and capacities
shown on the schedule or in the specifications. The units
shall be located as shown on the drawings and each shall
consist of a chassis, appropriately sized wall plenum, outdoor
grille, remote wall thermostat, support platform, and closet
access panel or door.
Units shall be listed by UL and cUL, certified to ARI standard
310/380 and 390, and shall be GE Vertical Zoneline models or
equal. Unit dimensions shall not exceed 23 1/8" x 23 1/8" x 32".
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
with factory wording sufficient to warn handlers against
dropping, improper stacking, upending, or rolling.
The chassis shall be slide-in type, ready to operate after
installation.
The chassis shall be protected against the harmful effects
of airborne chemicals and saltwater corrosion.
The chassis shall have a hermetically sealed refrigerant system
with an external vibration isolated rotary compressor. Indoor
coils shall have copper tubing with aluminum fins. Outdoor
coils shall have copper tubing with aluminum fins treated
to resist the effects of airborne chemicals and salt-water
corrosion. All refrigerant coil fins will have the necessary
enhancements to achieve EER and COP ratings of the unit.
Refrigerant system metering shall be done with capillaries.
Airflow system shall consist of one permanently lubricated
fan motor for the outdoor side and a separate permanently
lubricated three-speed motor for the indoor blower. Outdoor
fan shall be multi-blade axial-flow design made of non-corrosive
material. Indoor fan shall be blower type to optimize airflow
and minimize air noise. All motors on the exterior side of the
weather barrier shall be painted and enclosed to reduce the
effects of moisture and corrosion.
Units will have a positive cooling condensate disposal system,
which meets the test requirements of applicable A.R.I. standard
310/380 and 390. The disposal system shall have a slinger ring
on the outdoor fan to dispose of condensate water and to
assist in cooling the outdoor coil.
Unit indoor and outdoor airflows must match the capacity
of the coils for efficient heat transfer and meet latent and
sensible heat requirements. Water blow-off shall not occur
on the indoor coil.
Unit shall have a sensor to prevent indoor coil freeze up.
Wall Plenum
Wall Plenums shall be constructed of heavy gauge, zinc
coated, phosphated steel with a baked on enamel finish.
Plenums shall be installed through the exterior wall where
shown on the plans and shall be of correct depth to allow
sealing to exterior and interior walls.
Exterior Grilles
Each unit shall be equipped with a standard exterior
grille that has been designed to allow operation in high
ambient conditions.
Special exterior grilles or custom louver sections supplied
by others will conform to minimum free area requirements
and shall be submitted to the manufacturer, if requested,
for feasibility and air flow characteristics.
Electrical
Units shall be designed to operate on 230/208 or 265-volts,
60 Hz, single-phase power.
Units shall have means of electrical connection listed by
Underwriters Laboratories and compatible with the units
required voltage and ampacity in conformance with
National Electrical Code (NEC) and all local codes.
Features
Unit must have a positive-closing fresh air ventilation
system with a concealed manual control.
Unit must be compatible with 2-wire Central Desk
Control systems.
Units must be compatible with Mechanical and Electronic
Class-2 remote wall thermostats.
Units must have available connections to interface with
occupancy sensors.
Using optional kit, unit shall have Electronic Temperature
Limiting with seven independent heating and cooling settings
to limit maximum and minimum room temperature settings.
Using optional kit, unit shall be equipped with Freeze Sentinel
to automatically activate the electric heaters and appropriate
fan motors to warm and circulate indoor air to prevent damage
due to freezing temperatures. Freeze Sentinel
when unit is connected to a powered electrical circuit and the
unit shall have the ability to disable this feature.
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