Bryant 574B manual Model Number Nomenclature, High and LOW Pressure Switches provide added reli

Corporate thermostats include the Time Guard® II anti-short cycle protection circuitry. If a non-corporate thermostat without anti-short cycle protection is used the Time Guard II field in- stalled anti-short cycle kit is recommended.

Refrigerant system is designed to provide dependability. Liquid filter dryers are used to promote clean, unrestricted operation. Each unit leaves the factory with a full refrigerant charge. Refrig- erant service connections make checking operating pressures easier.

HIGH AND LOW PRESSURE SWITCHES provide added reli-

ability for the compressor.

Evaporator and condenser coils are computer-designed for optimum heat transfer and cooling efficiency. The evaporator coil is fabricated from copper tube and aluminum fins and is lo- cated inside the unit for protection against damage. The con- denser coil is internally mounted on the top tier of the unit. Copper fin coils and pre-coated fin coils are available from the factory by special order. These coils are recommended in appli- cations where aluminum fins are likely to be damaged due to corrosion. They are ideal for seacoast applications.

Low sound ratings ensure a quiet indoor and outdoor environ- ment with sound ratings as low as 72 dB. (See page 3.)

Easy to service cabinets provide easy single-panel accessibility to serviceable components during maintenance and installation. The unit base with integrated drain pan provides easy ground lev- el installation with or without a mounting pad. Convenient rigging

holds are provided to manipulate the unit on the jobsite. A nesting feature ensures a positive unit base to roof curb seal when the unit is roof mounted. A convenient 3/4-in. wide perimeter flange makes frame mounting on a rooftop easy.

Standard metal duct covers with insulation come with the unit and cover the horizontal duct openings. These can be left in place if the units are converted to downflow.

Downflow operation is easily provided in the field to allow ver- tical ductwork connections. The basepan utilizes knockout style seals on the bottom openings to ensure a positive seal in the horizontal airflow mode.

Integrated Gas Control (IGC) board provides safe and efficient control of heating and simplifies trouble-shooting through its built-in diagnostic function.

Cabinets are constructed of heavy-duty, phosphated, zinc- coated prepainted steel capable of withstanding 500 hours in salt spray. Interior surfaces of the evaporator/heat exchanger compartment are insulated with cleanable semi-rigid insulation board, which keeps the conditioned air from being affected by the outdoor ambient temperature and provides improved indoor air quality. (Conforms to American Society of Heating, Refriger- ation and Air Conditioning Engineers No. 62P.) The sloped drain pan minimizes standing water in the drain, which is provided with an external drain fitting.

Louvered Grille provides hail and vandalism protection.

MODEL NUMBER NOMENCLATURE

		574B N	W 024	040 N	VS
						Options
Model Number						BT –	AL evap, vinyl condens
574B – Single
						CC –	AL evap, CU condens
Packaged Gas
						CU –	CU evap & condens
Heating/Electric
Cooling						TP –	Base unit with tin plated indoor coil
						TV –	hair pins
Electrical Supply							TP with vinyl coating on outdoor coil
						TC –	TP with AL indoor coil and CU/CU
N – 208/230-1-60							outdoor coil
P – 208/230-3-60						Only used if ordering an option
Fuel						Low NOx Indicator
W – Natural Gas
P – Propane Gas						N – Low NOx Unit
						Only used if ordering NOx units
Nominal Cooling Capacity
024	– 2 ton					Heat Input Size
030	– 2.5 ton (not yet available)					040 –	40,000
036	– 3 ton					060 –	60,000
042	– 3.5 ton (not yet available)					090 –	90,000
048	– 4 ton					115 – 115,000
060	– 5 ton					130 – 130,000

LEGEND

CU — Copper

AL — Aluminum

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