Bryant 502A manual Guide Specifications, Indoor Packaged Unit, Part 1 General, Part 2 Products

GUIDE SPECIFICATIONS

INDOOR PACKAGED UNIT

HVAC GUIDE SPECIFICATIONS — SECTION 15787

SIZE RANGE: 2 TO 5 TONS, NOMINAL

BRYANT MODEL NUMBER: 502A

C.Fans:

1.Evaporator:

a.Blower shall be of the forward-curved, centrifugal, direct-drive type or belt drive (4 and 5 tons only).

PART 1 — GENERAL	b. Motor	shall	have	permanently	lubricated
	bearings.
1.01 SYSTEM DESCRIPTION
	c. Unit sizes 048, 060 shall be available with an
Indoor mounted, electrically controlled packaged horizon-
	optional 1.5 hp fan motor.
tal cooling unit utilizing a hermetic type scroll compressor.
	2. Condenser:
1.02 QUALITY ASSURANCE
	a. Blower shall be of the forward-curved, centrifugal,
A. Unit shall be certified in accordance with ARI Stand-
	direct-driven		type (024 only), or		belt drive
ard 210.
	(036,048,060).
B. Unit shall be UL listed and carry a UL label.
	b. Motor	shall	have	permanently	lubricated
C. Unit shall be CSA approved (except 3 ton, 3-phase units).
	bearings.
D. Unit shall be factory run-tested to ensure proper perfor-	D. Compressor:
mance prior to delivery.	1. Fully hermetic scroll type.

1.03 DELIVERY, STORAGE, AND HANDLING

2. Mounted on suitable spring vibration isolators.

A. Unit shall be shipped completely assembled and ready to

operate.

3. Equipped with internal line break protection.

B. Unit		shall be shipped factory charged with refrigerant						E. Coils:
								Evaporator and condenser coils shall be of non-ferrous
R-22.
C. Unit shall be stored and handled in accordance with the								construction with aluminum fins mechanically bonded to
								seamless copper tubes with all joints brazed.
unit manufacturer’s instructions.
								F. Refrigerant Components:
PART 2 — PRODUCTS
								Refrigerant components shall include:
2.01 EQUIPMENT
								1. Capillary tube feed system.
A. General:
								2. Refrigerant filter-drier.
Factory assembled horizontal, single piece, air cooled,
								G. Filter Section:
indoor, ceiling plenum mounted electric cooling unit. Con-
tained within the unit enclosure shall be all factory wiring,								Filter section shall consist of factory-installed, permanent,
piping, controls, refrigerant charge (R-22), and special								cleanable air filter, removable from the same side as the
features required prior to start-up.								access panels without the use of tools.
B. Unit Cabinet:								H. Controls and Safeties:
1.		Constructed of galvanized steel.						Control system shall include a high-pressure switch, a
2.		Interior shall be insulated with 1/2-in. thick neoprene						low-pressure switch, and a compressor lockout feature
		coated fiberglass. Insulation shall be bonded to inte-						which upon tripping of any safety device shall prevent
		rior surfaces by sprayed water reduceable adhesive.						compressor from restarting until reset at the thermostat
3. Equipped with 3 same side access panels and 2 bot-								(on all 3-phase units and 036 single-phase units only).
								I. Operating characteristics:
		tom hanging removable doors to facilitate ease of
		maintenance. Side panels allow access to the control						1.	Unit shall operate using refrigerant R-22.
		box, refrigeration components, and condenser coil.						2. Unit shall be designed for indoor suspended horizon-
		Control box shall be hinged allowing access to the
									tal mounting and operation.
		compressor and pressure switches. Bottom doors
								J. Electrical Requirements
		shall allow access to and easy removal of the
		condenser and evaporator motors and blower						Unit shall have single point power connection to leads in
		assemblies.						terminal box.
4.	Equipped with two		3/ -in. threaded condensate drain					K. Special Features:
			4			3/ -in.
		connections below the evaporator coil and one						Certain standard features are not applicable when the
						4
		threaded connection for condenser coil wash down.						features designated by * are specified. For assistance in
		Connections shall	be	factory plugged	for	field
								amending the specifications, your		local Bryant	Sales
		removal.
								Office should be contacted.
5.	Field splittable through the removal of 4 bolts and
							*	1.	Electric Heat Module:
		extending refrigerant piping and wiring			to	allow
									a. Provides encased heater	elements that	shall
		remote horizontal or vertical condenser mounting.
									attach directly to the base unit discharge.
6. Unit shall have an integral hanging bracket requiring
									b. Shall have bottom access.
		only 4 threaded rods (8 if unit is split) run to the top
		flange of the unit for hanging, eliminating need for							c. UL listed.
		external hanger brackets.						2. Thermostat Assembly:
7.		Contains junction	box	for power connection and
									Provides cooling and fan control. Standard subbase

opening for routing of control wiring.	shall include ‘‘Compressor malfunction light’’
	designed to illuminate if compressor lockout is
	activated.

15