Bryant 702B - Manual (Page 27)

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GUIDE SPECIFICATIONS continued
increasing system efficiency.
2. Coil Options:
Shall include factory-installed optional copper/cop-
per and vinyl-coated refrigerant coils.
3. Economizer:
a.Economizer controls capable of providing free cool-
ing using outside air.
b. Equipped with low leakage dampers not to exceed
3% leakage, at 1.0 in. wg pressure differential.
c. Spring return motor shuts off outdoor damper on
power failure.
4. Flat Roof Curb:
Curbs shall have seal strip and a wood nailer for
flashing and shall be installed per manufacturer’s in-
structions.
5. Manual Outdoor Air Damper:
Package shall consist of damper, birdscreen, and
rainhood which can be preset to admit outdoor air for
year-round ventilation.
6. Thermostat:
To provide for one-stage heating and cooling in addi-
tion manual or automatic changeover and indoor fan
control.
7. Low Ambient Package:
Shall consist of a solid-state control and condenser
coil temperature sensor for controlling condenser-fan
motor operation, which shall allow unit to operate
down to 0° F outdoor ambient temperature.
8. Filter Rack Kit:
Shall provide filter mounting for downflow applica-
tions.
9. Square-To-Round Duct Transitions:
Shall have the ability to convert the supply and return
openings from rectangular to round. (024-048 only)
10. Compressor Protection (Time Guard® II Kit)
Solid-state control shall protect compressor by pre-
venting “short cycling.”
11. Crankcase Heater:
Shall provide anti-floodback protection for low-load
cooling applications.
12. Electric heaters:
a. Electric heater shall be available as a field-
installed option.
b. Heater elements shall be open wire type, ade-
quately supported and insulated with ceramic
bushings.
c. Electric heater packages must provide single point
power connection capability.
13. Compressor Hard Start Kit:
Shall be available to give a boost to the compressor
motor at each start-up. (Single Phase only).