FEATURES/BENEFITS (cont)
The
Standard
All Units are Designed with a Single Continuous Top Piece to eliminate leaking at the seams or gasketing, which tends to deteriorate over time and shift during rigging procedures.
QUIET, EFFICIENT OPERATION AND DEPENDABLE PERFORMANCE
All Units are Equipped With Scroll Compressors which are fully hermetic with internal vibration isolators for extremely quiet operation. The scroll compressors are quieter and more reliable than reciprocating designs. Compressors are mounted on an independent plate for additional sound integrity and structural support. Efficient condenser fan and motor design permits operation at low sound levels.
Totally Enclosed
lubricated bearings provide additional dependability.
All Coils Use
Exclusive Dimpled Heat Exchangers optimize heat transfer for improved efficiency. The tubular design permits hot gases to make multiple passes across the path of the supply air. In addi- tion, dimpled heat exchanger tubes act as baffles, forcing the hot gases to stay in close contact with the cell walls to maximize heat transfer and efficiency.
The California Air Quality Management NOx requirement of 40 nanograms/joule or less is met with Low kit NOx models in
The Induced Draft Combustion System eliminates the unsightly appearance of flue stacks, and diminishes the effects of winds on heating operation. The inducer fan draws hot com- bustion gas through the heat exchanger at the optimum rate for the most effective heat transfer. The induced draft (negative pressure) also prevents contaminants from entering the supply air if a leak in the heat exchanger occurs.
The Direct Spark Ignition System saves operating expense when compared to
LP (Liquid Propane) Conversion Kit — Standard units are
designed for natural gas. An LP Conversion Kit is available as an accessory, if required. Installation of the accessory LP kit simply involves changing the gas orifices to accommodate liq- uid propane gas.
Refrigerant Circuit Protection assures dependability. All units have standard:
1)
2)
3)
4)filter driers, which trap moisture and debris in the refrigera- tion system.
5)Bryant’s exclusive fixed orifice metering device, which pre- cisely controls refrigerant flow, preventing slugging and floodback, while maintaining optimum unit performance by metering the circuits individually.
Two Independent Compressor Circuits (all 71/2 to 121/2 ton
units) provide pinpoint comfort control, improved efficiency, and
The Standard Control System is readily adaptable to all con- ventional thermostats.
Integrated Gas Unit Controller (IGC) — All ignition compo-
nents are contained in the compact Integrated Gas Controller (IGC) that is easily accessible for service. The IGC provides built in diagnostic capabilities. An LED simplifies troubleshoot- ing by providing visual fault notification and system status infor- mation. The IGC board provides exclusive
Patented
tion against compressor cycling by monitoring compressor cur- rent draw. When lack of compressor current exists, the Cycle- LOC circuit board locks out the compressors. The
TABLE OF CONTENTS
Page
Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . 4
ARI Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Options and
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13,14
Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16
Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Performance
Electrical
Application Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Piping and Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Typical Wiring
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58,59
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3