Bryant’s Quantum Plus 591B with Puron® provides features
which cannot be matched by any other family of equipment. The
591B is a Quantum Plus air conditioning system utilizing Br yant’s unique Puron refrigerant. The environmentally sound
refrigerant allows you to make a responsible decision in the protection of the earth’s ozone layer. Bryant’s Quantum Plus systems meet the Energy Star
unique refrigerant designed to help protect the environment.
Puron is an HFC refrigerant which does not contain chlorine that
can harm the ozone layer. The most important advantage of
Puron refrigerant is that it has not been banned in future air conditioning systems as the traditional refrigerant R-22 has been.
Puron refrigerant is in service in thousands of systems proving
highly reliable, environmentally sound performance.
Heavy Duty Inlet Grille—The DuraGuard™ coil protector,
made of a coated steel wire grid with vertical 3/8 in. spacing, is
designed to help protect the coil from inclement weather, vandalism, and incidental damage. It provides protection while not
restricting airflow and maintaining ease of coil inspection and
cleaning.
High Efficiency Performance—Is delivered through a combina-
tion of features including Bryant’s Puron refrigerant, unique scroll
compressor, and advanced heat transfer surfaces. Efficiency ratings are 11 to 12.5 SEER (Seasonal Energy Efficiency Ratio).
Sophisticated heat transfer surfaces utilized in Bryant’s 591B
design allow heat to easily be transferred to the outdoor air and
require less energy. The unique scroll compressor found in the
591B design performs quietly and adds to the overall efficiency of
the system. Finally, Bryant’s unique Puron refrigerant operates
more efficiently than ordinary R-22 refr igerant found in other systems. The efficiency levels provided by the 591B provide end
users with lower costs of operation than traditional air conditioning systems.
Assured Future Service—By utilizing the environmentally
sound refrigerant, Puron®, 591B models will remain serviceable
®
guidelines for energy efficiency.
AVAILABLE OPTIONS
®
(R-410A)
Sizes 018 thru 060
well into the future. The Clean Air Act of 1990 has placed a cap
on production of most other refrigerants which has scheduled
reductions beginning in 2004. The resulting cap in production
ultimately results in a complete ban on many other refrigerants
in new equipment by the year 2010. These changes, required by
federal law, mean the supply of other refrigerants may be limited
in the near future making Puron the correct choice when considering long term serviceability.
Highly Reliable Performance—Is delivered through the supe-
rior design of the system and componentr y. The reliability of
the existing Quantum Plus models has been proven to provide
the lowest incidence of warranty service of any product in the
Bryant family in the past few years of service. Long term reliability is assured through the use of both high and low pressure switches which will not allow the system to operate in the
event of a significant change in operating pressure. In doing
this, the system is protected from damage if an unusual condition arises. Finally, Bryant includes a special liquid line filter
drier designed to trap moisture and contaminants which could
otherwise shorten the life of the system.
Application Versatility—Bryant’s systems utilizing Puron
refrigerant have the same application guidelines as other systems. Applications which include long line sets (50 to 175 ft) or
applications which require the system to operate at low outdoor
temperatures (below 55°F) are approved under Bryant’s standard guidelines.
Bryant Coils and Fan Coils to Complete the System—Bryant
specially designs both the outdoor product and indoor coil products to operate with assured reliability and performance. A wide
range of indoor coil options are listed in the ratings section of
this publication.
Special Protective Devices—High and low pressure switches
and internal protection in the compressor including temperature
and current sensing overloads prevent operation under potentially damaging circumstances. A special liquid line filter drier
designed to trap nearly 4 times the volume of contaminants of
standard driers provides superior protection from moisture
trapped in the system.
Electrical Range—208/230v, single phase.
Wide Range of Sizes—Available in seven sizes; 1-1/2, 2, 2-1/2,
3, 3-1/2, 4, and 5 tons.
Reliant Cabinet—Galvanized steel is coated with powder paint
to provide a superior, long lasting appearance.
Totally Enclosed Fan Motor—Protected from adverse weather
conditions.
Unit Design—Enhanced copper and aluminum heat transfer
surfaces with vertical air discharge to direct air up and away
from the area.
External Service Valves—Both service valves are back seating
type valves which are externally located. These unique valves
allow service technicians to evacuate or charge the system in
less time than standard service valves.
Easy Serviceability—One panel provides access to electrical
controls and compressor. Removal of wire dome gives access
to fan motor and removal of the top gives access to the coil.
Agency Approvals—591B models are listed with UL, c-UL,
ARI, CEC, and CSA-EEV. Special endorsements have also
been awarded these products by Energy Star® which recognizes energy efficient products.
Limited Warranty—A standard five year warranty on parts with a
10 year limited warranty on the compressor. Optional warranties
are available through your Bryant distributor.
Form No. PDS 591B.18.1
AIR DISCHARGE
3
/8" DIA. TIEDOWN KNOCKOUTS
(2) PLACES
C
L
AIR IN
AIR DISCHARGE
2 1/2"
1 9/16"
FIELD POWER SUPPLY CONN. 7/8" DIA.
HOLE WITH 1
AND 1
1
/8" DIA. KNOCKOUT
3
/8" DIA. KNOCKOUT
B
—2—
AIR IN
AIR DISCHARGE
AIR IN
FIELD CONTROL
K
D
C
L
E
J
N
SUPPLY CONN
7
/8" DIA. HOLE
H DIA. VAPOR
LINE CONN.
3
/8" DIA. LIQUID
LINE CONN.
3
/16"
4
1 3/4"
10 1/2"
A
G
F
M
1 1/4"
ACCESS
PANEL
NOTES:
1. ALLOW 30" CLEARANCE TO SERVICE SIDE OF UNIT, 48" ABOVE UNIT, 6" ON ONE
SIDE, 12" ON REMAINING SIDE, AND 24" BETWEEN UNITS FOR PROPER AIRFLOW.
2. MINIMUM OUTDOOR OPERATING AMBIENT IN COOLING MODE IS 55°F,
(UNLESS LOW AMBIENT CONTROL IS USED) MAX. 125°F.
3. SERIES DESIGNATION IS THE 14TH POSITION OF THE UNIT MODEL NUMBER.
4. CENTER OF GRAVITY .
A99067
DIMENSIONS (IN.)
UNIT
SIZESERIES
018A23-13/1622-1/227-1/22-13/166-15/1613-15/1618-3/85/88-3/1612-1/21416-1/22-3/820 x 32
024A27-13/1622-1/227-1/22-13/166-15/1615-15/1622-3/85/88-3/1612-1/21416-1/22-15/1620 x 32
030A27-13/1622-1/227-1/22-13/166-15/1615-15/1622-3/83/48-3/1612-1/21416-1/22-15/1620 x 32
036A33-13/1622-1/227-1/22-13/166-15/1621-15/1628-3/83/48-3/1612-1/21417-1/22-15/1620 x 32
042A27-13/1630335-1/169-11/1615-15/1622-3/87/88-3/1618-1/219-3/4132-15/1626 x 32
048A27-13/1630335-1/169-11/1615-15/1622-3/87/88-3/1618-1/219-3/4132-15/1626 x 32
060A39-13/1630335-1/169-11/1627-15/1634-3/87/88-3/1617-3/41917-3/42-15/1626 x 32
As an ENERGY STAR
partner, Bryant Heating &
Cooling Systems has
determined that this product meets the ENERGY
®
guidelines for
STAR
energy efficiency.
®
T
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1
2
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A
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CERTIFICATION APPLIES ONLY
WHEN THE COMPLETE SYSTEM
IS LISTED WITH ARI.
REGISTERED QUALITY SYSTEM
—3—
SPECIFICATIONS
UNIT SIZE-SERIES018-A024-A030-A036-A
Operating Weight (Lb)168178188198
ELECTRICAL
Unit Volts—Hertz—Phase208/230-60-1
Operating Voltage Range*187-253
Compressor— Rated Load Amps10.313.515.417.9
Locked Rotor Amps51.061.073.0100.0
Condenser Fan Motor—Full Load Amps0.500.750.751.40
Min Unit Ampacity for Wire Sizing13.417.419.220.1
Min Wire Size (60°C Copper) AWG†14141412
Min Wire Size (75°C Copper) AWG†14141412
Max Wire Length (Ft) (60°C Copper)‡56443952
Max Wire Length (Ft) (75°C Copper)‡54423750
Max Branch Circuit Fuse or
Circuit Breaker Size (Amps)20303040
COMPRESSOR & REFRIGERANT
Compressor—TypeScroll
ManufacturerCopeland
Temperature & Current ProtectionInternal Line Break
Refrigerant—TypePuron® (R-410A)
Amount (Lb)4.154.665.286.13
CONDENSER COIL & FAN
Coil Face Area (Sq Ft)7.278.728.7210.9
Fins per In.—Rows—Circuits20—1—125—1—225—1—225—1—2
Fan Motor—HP (PSC) & RPM1/12 & 11001/10 & 11001/10 & 11001/10 & 1100
Volts—Hertz—Phase208/230-60-1
Condenser Airflow (CFM)1700200020002500
OPTIONAL EQUIPMENT
Support FeetKSASF0101AAA
Coastal FilterKAACF0701SML
Programmable Thermostat with Humidity ControlTSTATBBPRH01-B
Builder’s Thermostat—Manual Changeover,
Non-Programmable, °F/°C,
1-Stage Heat, 1-Stage CoolTSTATBBBAC01-B
Outdoor Air Temperature SensorTSTATXXSEN01-B
Backplate for Non-Programmable ThermostatTSTATXXNBP01
Backplate for Programmable ThermostatTSTATXXPBP01
Backplate for Builder’s ThermostatTST ATXXBBP01
Thermostat Conversion Kit (4 to 5 wire)—10 PackTSTATXXCNV10
See notes on page 5.
—4—
SPECIFICATIONS Continued
UNIT SIZE-SERIES042-A048-A060-A
Operating Weight (Lb)215217278
ELECTRICAL
Unit Volts—Hertz—Phase208/230-60-1
Operating Voltage Range*187-253
Compressor—Rated Load Amps19.924.430.1
Locked Rotor Amps127.0131.0172.0
Condenser Fan Motor—Full Load Amps1.101.401.40
Min Unit Ampacity for Wire Sizing24.426.735.9
Min Wire Size (60°C Copper) AWG†1088
Min Wire Size (75°C Copper) AWG†10108
Max Wire Length (Ft) (60°C Copper)‡779780
Max Wire Length (Ft) (75°C Copper)‡735976
Max Branch Circuit Fuse or
Circuit Breaker Size (Amps)405060
COMPRESSOR & REFRIGERANT
Compressor—TypeScroll
ManufacturerCopeland
Temperature & Current ProtectionInternal Line Break
Refrigerant—TypePuron® (R-410A)
Amount (Lb)6.336.837.93
CONDENSER COIL & FAN
Coil Face Area (Sq Ft)12.1612.1618.3
Fins per In.—Rows—Circuits25—1—225—1—225—1—3
Fan Motor—HP (PSC) & RPM1/5 & 8251/4 & 11001/4 & 1100
Programmable Thermostat with Humidity ControlTSTATBBPRH01-B
Builder’s Thermostat—Manual Changeover,
Non-Programmable, °F/°C,
1-Stage Heat, 1-Stage CoolTSTATBBBAC01-B
Outdoor Air Temperature SensorTSTATXXSEN01-B
Backplate for Non-Programmable ThermostatTSTATXXNBP01
Backplate for Programmable ThermostatTSTATXXPBP01
Backplate for Builder’s ThermostatTSTA TXXBBP01
Thermostat Conversion Kit (4 to 5 wire)—10 PackTSTATXXCNV10
* Permissible limits of the voltage range at which the unit will operate satisfactorily. Operation outside these limits may result in unit failure.
† If wire is applied at ambient greater than 30°C (86°F), consult Table 310-16 of the NEC (ANSI/NFPA 70).
The ampacity of nonmetallic-sheathed cable (NM), trade name ROMEX, shall be that of 60°C (140°F) conductors, per the NEC (ANSI/NFPA 70) Article 336-26. If
other than uncoated (non-plated), 60 or 75°C (140 or 167°F) insulation, copper wire (solid wire for 10 AWG and smaller, stranded wire for larger than 10 A WG) is
used, consult applicable tables of the NEC (ANSI/NFPA 70).
‡ Length shown is as measured 1 way along wire path between unit and service panel for a voltage drop not to exceed 2%.
** Fan motor with ball bearings required.
†† See low-ambient controller Installation Instructions for application.
N/A — Not Applicable.
NOTE: Copper wire must be used from service disconnect to unit. All motors/compressors contain internal overload protection.
—5—
1.
ACCESSORY USAGE GUIDELINE
REQUIRED FOR
LOW-AMBIENT
ACCESSORY
Crankcase HeaterYesYesNo
Evaporator Freeze ThermostatYesNoNo
Winter Start ControlYes†NoNo
AccumulatorNoNoNo
Compressor Start Assist
Capacitor and Relay
MotorMaster® Control,
or
Low-Ambient Pressure Switch
Wind BaffleSee Low-Ambient InstructionsNoNo
Coastal FilterNoNoYes
Support FeetRecommendedNoRecommended
Liquid-Line Solenoid Valve
or
Hard Shutoff TXV
Ball Bearing Fan MotorYes‡NoNo
APPLICATIONS
(Below 55°F)
YesYesNo
YesNoN o
No
* For tubing line sets greater than 50 ft, refer to Application Guideline and Service Manual—Air Conditioning and Heat Pumps Using Puron®
Refrigerant.
† Only when low-pressure switch is used.
‡ Required for low-ambient controller (full modulation feature) and MotorMaster® Control only.
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(Over 50 Ft)
See Long-Line
Application
Guideline
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 Miles)
No
ACCESSORY DESCRIPTION AND USAGE (Listed Alphabetically)
Ball Bearing Fan Motor
A fan motor with ball bearings which permits speed reduction while maintaining bearing lubrication.
SUGGESTED USE: Required on all units where Low-Ambient Controller (full modulation feature) or MotorMaster® Control has been added.
2.
Coastal Filter
A mesh screen inserted under the top cover and inside base pan to protect the condenser coil from corrosive atmosphere without restricting airflow.
SUGGESTED USE: In geographic areas where salt damage could occur.
3.
Compressor Start Assist—Capacitor/Relay Type
Start capacitor and start relay which gives a “hard” boost to compressor motor at each start-up.
SUGGESTED USE: Installations where interconnecting tube length exceeds 50 ft.
4.
Compressor Start Assist—PTC Type
Solid-state electrical device which gives a “soft” boost to compressor motor at each start-up.
SUGGESTED USE: Installations with marginal power supply.
5.
Crankcase Heater
An electric resistance heater which mounts to the base of the compressor to keep the lubricant warm during off cycles. Improves compressor lubrication
on restart and minimizes chance of refrigerant slugging. May or may not include a thermostat control.
SUGGESTED USE: When interconnecting tube length exceeds 50 ft.
6.
Cycle Protector
Solid state timing device which prevents compressor rapid recycling. Control provides an approximate 5-minute delay after power to the compressor has
been interrupted for any reason, including normal room thermostat cycling.
SUGGESTED USE: Installations in areas where power interruptions are frequent.
7.
Evaporator Freeze Thermostat
An SPST temperature actuated switch which stops unit operation when evaporator reaches freeze-up conditions.
SUGGESTED USE: All units where Winter Start Control has been added.
8.
Filter Drier (Suction Line)
A device for removing contaminants from refrigerant circulating in an air conditioner: 1-direction flow. See Application Guideline and Service Manual for
proper application.
SUGGESTED USE: All split-system air conditioners.
9.
Liquid-Line Solenoid Valve (LSV)
An electrically operated shutoff valve to be installed at the outdoor or indoor unit (depending on tubing configur ation) and which stops and starts refrigerant
liquid flow in response to compressor operation. Maintains a column of refrigerant liquid ready for action at next compressor operation cycle.
NOTE: Compressor Start Assist—Capacitor/Relay Type must also be used. Do not use with hard shutoff TXV.
SUGGESTED USE: For improved system perf ormance in air conditioners f or certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
In areas with high pollution levels.
Installations where outdoor design temperature exceeds 105°F (40.6°C).
Installations where Liquid-Line Solenoid Valve or hard shutoff TXV has been added.
When unit will be operated below 55°F (12.8°C) outdoor air temperature. Use with Low-Ambient Controller.
All commercial installations.
Where user is likely to “play” with the room thermostat.
All commercial installations.
Installations where interconnecting tube length exceeds 50 ft.
High-rise applications.
In certain long-line applications. Refer to Residential Split System Long-Line Application Guideline and Service Manual.
—6—
ACCESSORY DESCRIPTION AND USAGE (Listed Alphabetically) Continued
10.Low-Ambient Pressure Switch
A long life pressure switch which is mounted to outdoor unit service valve. It is designed to cycle the outdoor fan motor in order to maintain head pressure
within normal operating limits (approximately 200 psig to 365 psig). The control will maintain working head pressure at low-ambient temperatures down to
0°F (–17.8°C) when properly installed.
SUGGESTED USE: Cooling operation at outdoor temperatures below 55°F (12.8°C).
11.
MotorMaster® Control
A fan speed control device activated by a temperature sensor. Designed to control condenser fan motor speed in response to the saturated, condensing
temperature during operation in cooling mode only. For outdoor temperatures down to –20°F (–28.9°C), it maintains condensing temperature at
100°F ± 10°F (37.8°C ± 5.6°C).
SUGGESTED USE: Cooling operation at outdoor temperatures below 55°F (12.8°C).
12.
Outdoor Air Temperature Sensor
A device that allows the temperature at a remote location (outdoors) to be displayed at the thermostat.
SUGGESTED USE: All Bryant programmable thermostats.
13.
Piston Body
This piston body is to be used as a replacement for the FK4C F an Coil R-22 thermostatic expansion v alv e when used with Puron® (R-410A) air conditioner
units. Use piston and piston ring shipped with outdoor unit for installations under 50 ft.
SUGGESTED USE: All Puron® air conditioner installations matched with FK4C Fan Coils.
14.
Support Feet
Four stick-on plastic feet which raise the unit 4 in. above the mounting pad. This allows sand, dirt, and other debris to be flushed from the unit base,
minimizing corrosion.
SUGGESTED USE: For improved sound ratings.
15.
Thermostatic Expansion Valve (TXV)
A modulating flow-control valve which meters refrigerant liquid flow rate into the evaporator in response to the superheat of the refrigerant gas leaving the
evaporator. Kit includes valve, adapter tubes, and external equalizer tube. Hard shutoff valves are available. Do not use with Liquid-Line Solenoid Valve.
NOTE: Compressor Start Assist—Capacitor/Relay Type must also be used. Do not use with Liquid Line Solenoid.
SUGGESTED USE: For improved system performance in cooling mode for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
16.
Time-Delay Relay
An SPST delay relay which briefly continues operation of the indoor blower motor to provide additional cooling after the compressor cycles off.
SUGGESTED USE: For improved efficiency ratings for certain combinations of indoor and outdoor units. Refer to ARI Unitary Directory.
17.
Winter Start Control
An SPST delay relay which bypasses the low-pressure switch for approximately 3 minutes to permit start-up for cooling operation under low-load
conditions.
SUGGESTED USE: All air conditioners where Low-Ambient Controller has been added.
All commercial installations.
Coastal installations.
Windy areas or where debris is normally circulating.
Rooftop installations.
Required for use on all zoning systems.
Required for use on all zoning systems.
SOUND POWER (dBA) (A-WTD, WITHOUT PURE TONE PENALTY)