Bryant 569F - Manual (Page 29)

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GUIDE SPECIFICATIONS — 569D072-120, 576C120
COMMERCIAL AIR-COOLED CONDENSING UNITS
HVAC GUIDE SPECIFICATIONS
SIZE RANGE: 6 TO 10 TONS, NOMINAL
BRYANT MODEL NUMBERS: 569D, SIZES 072-120
576C, SIZE 120
PART 1 — GENERAL
1.01 SYSTEM DESCRIPTION
Outdoor-mounted, air-cooled condensing unit suitable for
on-the-ground or rooftop installation. Unit shall consist of a
reciprocating
air-conditioning compressor assembly
(576C) or scroll compressor (569D), an air-cooled coil,
propeller-type condenser fan, and a control box. Unit shall
discharge supply air upward as shown on contract draw-
ings. Unit shall be used in a refrigeration circuit matched
with a packaged air-handling unit.
1.02 QUALITY ASSURANCE
A. Unit shall be rated in accordance with ARI latest
revisions.
B. Unit construction shall comply with ANSI/ASHRAE 15
safety code latest revision and comply with NEC.
C. Unit shall be constructed in accordance with UL 1995
standard and shall carry the UL and UL, Canada label.
D. Unit cabinet shall be capable of withstanding 500-hour
salt spray exposure per ASTM B117 (scribed specimen).
E. Air-cooled condenser coils for semi-hermetic compressor
units (576C) shall be leak tested at 150 psig and pressure
tested at 480 psig. Air-cooled condenser coils for scroll
compressor units (569D) shall be leak tested at 200 psig,
and pressure tested at 428 psig.
F. Unit shall be manufactured in a facility registered to
ISO 9001:2000 manufacturing quality standard.
1.03 DELIVERY, STORAGE, AND HANDLING
Unit shall be shipped as single package only, and shall be
stored and handled according to unit manufacturer’s
recommendations.
1.04 WARRANTY (FOR INCLUSION BY SPECIFYING
ENGINEER.)
PART 2 — PRODUCTS
2.01 EQUIPMENT
A. General:
Factory-assembled, single piece, air-cooled condensing
unit. Contained within the unit enclosure shall be all
factory wiring, piping, controls, compressor, holding
charge (R-22), and special features required prior to field
start-up.
B. Unit Cabinet:
1. Unit cabinet shall be constructed of galvanized steel,
bonderized and coated with a prepainted baked
enamel finish.
2. A heavy-gage roll-formed perimeter base rail with
forklift slots and lifting holes shall be provided to facil-
itate rigging.
C. Fans:
1. Condenser fans shall be direct driven, propeller-type,
discharging air vertically upward.
2. Fan blades shall be balanced.
3. Condenser fan discharge openings shall be
equipped with PVC coated steel wire safety guards.
4. Condenser fan and motor shaft shall be corrosion
resistant.
D. Compressor:
1. Compressor shall be of the scroll type (569D) or
semi-hermetic reciprocating type (576C).
2. Compressors shall be mounted on vibration
isolators.
3. Compressors shall include overload protection.
4. Compressors shall be equipped with a crankcase
heater.
5. Compressor shall be equipped with internal high dis-
charge temperature protection (569D072 and 120
only).
6. Compressor shall unload using suction cutoff unload-
ing (576C120 only). Electric solenoid unloading
available as an accessory.
E. Condenser Coil:
1. Condenser coil shall be air-cooled and circuited for
integral subcooler.
2. Coil shall be constructed of aluminum fins (copper
fins optional) mechanically bonded to internally
grooved seamless copper tubes which are then
cleaned, dehydrated, and sealed.
F. Refrigeration Components:
Refrigeration circuit components shall include liquid line
service valve, suction line service valve, liquid filter drier,
a full charge of compressor oil, and a holding charge of
refrigerant. Unit 569D120 shall include an accumulator.
Units with semi-hermetic compressors (576C) shall have
oil-level sight glass and all units shall have crankcase
heater.
G. Controls and Safeties:
1. Minimum control functions shall include:
a. Control wire terminal blocks.
b. Compressor lockout on auto-reset safety until
reset from thermostat.
2. Minimum safety devices which are equipped with
automatic reset (after resetting first at thermostat),
shall include:
a. High discharge pressure cutout.
b. Low Pressure cutout.
c. High discharge temperature cutout (569D090
only).
H. Operating Characteristics:
1. The capacity of the condensing unit shall meet or
exceed Btuh at a suction temperature of ______ F.
The power consumption at full load shall not exceed
______ kW.
2. The combination of the condensing unit and the
evaporator or fan coil unit shall have a total net cool-
ing capacity of ______ Btuh or greater at conditions
of ______ cfm entering-air temperature at the evapo-
rator at ______ F wet bulb and ______ F dry bulb,
and air entering the condensing unit at ______ F.
3. The system shall have an EER of ______ Btuh/Watt
or greater at standard ARI conditions.
I. Electrical Requirements:
1. Nominal unit electrical characteristics shall be
______ v, 3-ph, 60 Hz. The unit shall be capable of
satisfactory
operation within voltage limits of
______ v to ______ v.
2. Unit electrical power shall be single-point connection.
3. Unit control circuit shall contain a 24-v transformer
for unit control.
50
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