Bryant 581J User Manual

581J GAS HEAT/ELECTRIC COOLING PACKAGED ROOFTOP 3 to 8.5 NOMINAL TONS
Product Data
TM
the environmentally sound refrigerant
E2010 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 4/10
C10405
C10222
Catalog No.PDS581J---01
Replaces: NEW
TABLE OF CONTENTS
PAGE
PAGE
FEATURES AND BENEFITS 3....................
MODEL NUMBER NOMENCLATURE 4............
FACTORY OPTIONS AND/OR ACCESSORIES 6.....
AHRI COOLING RATING TABLES 8...............
HEAT RATING TABLE 9.........................
SOUND PERFORMANCE TABLE 10...............
PHYSICAL DATA 12.............................
CURBS & WEIGHTS DIMENSIONS 16.............
APPLICATION DATA 23.........................
581J
Your Bryant rooftop unit (RTU) was designed by customers for customers. With “no--strip screw” collars, handled access panels, and more we’ve made your unit easy to install, easy to maintain and easy to use.
SELECTION PROCEDURE 25.....................
COOLING TABLES 26...........................
STATIC PRESSURE ADDERS 32..................
FAN PERFORMANCE 33.........................
OUTDOOR AIR INTAKE & EXHAUST PERF 43.....
ELECTRICAL INFORMATION 44.................
MCA/MOCP 46.................................
TYPICAL WIRING DIAGRAMS 51................
SEQUENCE OF OPERATION 55...................
GUIDE SPECIFICATIONS 57......................
Easy to install:
All Preferred Seriest units are field--convertible to horizontal air flow; no special adapter curbs or kits are necessary. Convertible airflow design makes it easy to adjust to unexpected job--site complications. Lighter units make easy replacement. Bryant 3--8.5 ton 581J rooftops fit on existing Bryant curbs dating back to 1989. Also, our large control box gives you room to work and room to mount Bryant accessory controls.
Easy to maintain:
Easy access handles by Bryant provide quick and easy access to all normally serviced components. Our “no--strip” screw system has superior holding power and guides screws into position while preventing the screw from stripping the unit’s metal. Take accurate pressure readings by reading condenser pressure with panels on. Simply remove the black, composite plug, route your gauge line(s) through the hole, and connect them to the refrigeration service valve(s). Now, you can take refrigeration system pressure readings without affecting the condenser airflow.
Easy to use:
The newly designed, master terminal board by Bryant puts all your connections and troubleshooting points in one convenient place, standard. Most low voltage connections are made to the same board and make it easy to find what you’re looking for and easy to access it. Bryant rooftops have high and low pressure switches, a filter drier, and 2” (51mm) filters standard.
the environmentally sound refrigerant
2

FEATURES AND BENEFITS

S Single--stage cooling capacity control on 04 to 07 models S Two--stage cooling capacity control on 08 and 09 models S SEER up to 15.6 S EER up to 13.0 S IEER’s up to 13.0 S Exclusive non--corrosive composite condensate pan in accordance with ASHRAE 62 Standard, sloping design; side or
center drain
S Gas efficiencies up to 82% S Induced draft combustion design S Redundant gas valve, with up to 2 stages of heating S Pre--painted exterior panels and primer--coated interior panels tested to 500 hours salt spray protection S TXV refrigerant metering system on each circuit S Fully insulated cabinet S Exclusive IGC solid--state control for on--board diagnostics with LED error code designation, burner control logic and
energy saving indoor fan motor delay
S Dedicated 3--5 ton “Low NOx” models available that meet California Air Quality Management NOx requirement of 40
nangram/joule or less. Low NOx models include stainless steel heat exchangers
S Cooling operating range up to 125_F(52_C), and down to 35_F(2_C) standard S Access panels with easy grip handles S Innovative , easy starting, no--strip screw feature on unit access panels S Two--inch disposable return air filters S Tool--less filter access door
581J
S Belt drive evaporator--fan motor and pulley combinations available on all three phase models S Electric Drive x13 (5 speed/torque) motor on 04 to 06 models S New terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement S Field Convertible from vertical to horizontal airflow for slab mounting. No special kits required S Provisions for thru--the--bottom power entry capability as standard S Single point gas and electric connections S Full perimeter base rail with built--in rigging adapters and fork truck slots S Scroll compressors with internal line--break overload protection S 24--volt control circuit protected with resettable circuit breaker S Permanently lubricated evaporator--fan motor S Totally enclosed condenser motors with permanently lubricated bearings S Low Pressure switch and high--pressure switch protection S Exclusive IGC anti--cycle protection for gas heat operation S Solid--state electronic direct spark ignition system S Flame roll--out safety protector S Liquid line filter drier on each circuit S Standard Warranty: 10 yr. aluminized heat exchanger, 15 yr. stainless steel heat exchanger, 5 yr. compressor, 1 yr. parts.
3

MODEL NUMBER NOMENCLATURE

123456789101112131415161718
5 8 1 J E 0 6 A 0 7 2 A 0 A 0 A A --
____________ ______ ________ ______
Unit Type Design Revision
581J = Cooling/Gas Heat RTU --- --- F i r s t R e v i s i o n
Legacy Series w/Pu ron Refrigerant
Voltage Factory Installed Options
E = 4 6 0 --- 3 --- 60
J = 208/230--- 1---60
P = 208/230--- 3---60 Outdoor Air Options
581J
T = 5 7 5 --- 3 --- 60 A=None
Cooling Tons E=Tempeconow/barorelief&CO
04 = 3 Ton H = Enthalpy econo w/ baro relief
05 = 4 Ton L = Enthalpy econo w/ baro relief & CO
06 = 5 Ton Q = Motorized 2 pos damper
07 = 6 Ton
08 = 7.5 Ton Indoor Fan Options
09 = 8.5 Ton 1 = Standard static option
Packaging
A --- S t a n d a r d
B --- LTL
B=Tempeconow/barorelief
2
2
2 = Medium static option
3 = High static option
Refrig. System/Gas Heat Options C o i l O p t i o n s ( o u t d o o r --- i n d o o r --- h a i l g u a r d )
A = 1 ---Stage Cooling/Nat gas heat A = Al/Cu --- Al/Cu
B = 1 --- S t a g e C o o l i n g / L o w N Oxheat B = P r e c o a t A l / C u --- A l / C u
C = 1 --- S t a g e C o o l i n g S S H X C = E --- c o a t A l / C u --- A l / C u
D = 2 --- S t a g e C o o l i n g 0 8 --- 0 9 D = E --- c o a t A l / C u --- E --- co a t A l / C u
F = 2 --- S t a g e C o o l i n g / S S H X E = C u / C u --- A l / C u
F = Cu/Cu --- Cu/Cu
M = A l / C u --- A l / C u --- L o u v e r e d H a i l g u a r d s
N = P r e c o a t A l / C u --- A l / C u --- L o u v e r e d H a i l G u a r d s
P = E c o a t A l / C u --- A l / C u --- L o u v e r e d H a i l G u a r d s
Heat Level (Input) Q = E c o a t A l / C u --- E c o a t A l / C u --- L o u v e r e d H a i l G u a r d s
Standard/Stainless Steel R = C u / C u --- A l / C u --- L o u v e r e d H a i l G u a r d s
072 = 72,000 S = C u / C u --- C u / C u --- L o u v e r e d H a i l G u a r d s
115 = 115,000
125 = 125,000
150 = 150,000
180 = 180,000
224 = 224,000
Low NO
x
060 = 60,000
090 = 90,000
120 = 120,000
4
TABLE 1 – FACTORY--INSTALLED OPTIONS AND FIELD--INSTALLED ACCESSORIES
FACTORY
CATEGORY ITEM
Cabinet
Thru---the --- base electrical or gas--- line connections X X Hinged access panels X Cu/Cu indoor and/or outdoor coils X
Coil Options
Pre-- -coated outdoor coils X Premium, E --- coated outdoor coils X
Condenser Protection Condenser coil hail guard (louvered design) X X
Thermostats, temperature sensors, and subbases X RTU --- MP open---protocol controller X
Controls
Smoke detector (supply and/or return air) X Time Guard II compressor delay control circuit X Phase Monitor X EconoMi$ert IV (for electro --- mechanical controlled RTUs) X X
Economizers
& Outdoor Air
Dampers
EconoMi$ert2 (for DDC controlled RTUs) X X Motorized 2 position outdoor - --air damper X X Manual outdoor ---air damper (25% and 50% ) X Barometric relief
1
Power exhaust X
2
2
2
Economizer Sensors
&
IAQ Devices
Single dry bulb temperature sensors Differential dry bulb temperature sensors Single enthalpy sensors Differential enthalpy sensors
2
2
Wall or duct mounted CO2sensor Unit mounted CO2sensor
2
Propane conversion kit X Stainless steel heat exchanger X
Gas Heat
High altitude conversion kit X Flue Shield X Flue Discharge Deflector X
Indoor Motor & Drive Multiple motor and drive packages X
Low Ambient
Control
Power
Options
Roof Curbs
Winter start kit Motormasterhead pressure controller Convenience outlet (powered) X Convenience outlet (unpowered) X Non ---fused disconnect X Roof curb 14” (356mm) X Roof curb 24” (610mm) X
3
3
INSTALLED
OPTION
X X
X X
X X
X
INSTALLED
ACCESSORY
FIELD
581J
X
X X
X X
NOTES:
1. Included with economizer.
2. Sensors used to optimize economizer performance.
3. See application data for assistance.
5
FACTORY OPTIONS AND/OR ACCESSORIES
Economizer (dry--bulb or enthalpy)
Economizers save money. They bring in fresh, outside air for ventilation; and provide cool, outside air to cool your building. This is the preferred method of low--ambient cooling. When coupled to CO provide even more savings by coupling the ventilation air to only that amount required.
Economizers are available, installed and tested by the factory, with either enthalpy or dry--bulb temperature inputs. There are also models for electromechanical as well as direct digital controllers. Additional sensors are available as accessories to optimize the economizers.
Economizers include gravity controlled, barometric relief equalizes building pressure and ambient air pressures.
581J
This can be a cast effective solution to prevent building pressurization.
sensors, economizers can
2
CO2Sensor
Improves productivity and saves money by working with the economizer to intake only the correct amount of outside air for ventilation. As occupants fill your building, the CO CO
When the occupants leave, the CO the sensor appropriately closes the economizer. This intelligent control of the ventilation air, called Demand Control Ventilation (DCV) reduces the overall load on the rooftop, saving money.
sensor detects their presence through increasing
2
levels, and opens the economizer appropriately.
2
levels decrease, and
2
Smoke Detectors
Trust the experts. Smoke detectors make your application safer and your job easier. Bryant smoke detectors immediately shut down the rooftop unit when smoke is detected. They are available, installed by the factory, for supply air, return air, or both.
Louvered Hail Guards
Power Exhaust with Barometric Relief
Superior internal building pressure control. This field--installed accessory may eliminate the need for costly, external pressure control fans.
RTU--MP, Multi--Protocol Controller
Connect the rooftop to an existing BAS without needing complicated translators or adapter modules using the RTU--MP controller. This new controller speaks the 4 most common building automation system languages (Bacnet, Modbus, N2, and Lonworks). Use this controller when you have an existing BAS.
Time Guard II Control Circuit
This accessory protects your compressor by preventing short--cycling in the event of some other failure, prevents the compressor from restarting for 30 seconds after stopping. Not required with RTU--MP or authorized commercial thermostats.
Motorized 2--Position Damper
The new Bryant 2--position, motorized outdoor air damper admits up to 100% outside air. Using reliable, gear--driven technology, the 2--position damper opens to allow ventilation air and closes when the rooftop stops, stopping unwanted infiltration.
Manual OA Damper
Manual outdoor air dampers are an economical way to bring in ventilation air. The dampers are available in 25% and 50% versions.
Hinged Access Panels
Allows access to unit’s major components with specifically designed hinged access panels. Panels are: filter, control box, fan motor and compressor.
Sleek, louvered panels protect the condenser coil from hail damage, foreign objects, and incidental contact.
Convenience Outlet (powered or un--powered)
Reduce service and/or installation costs by including a convenience outlet in your specification. Bryant will install this service feature at our factory. Provides a convenient, 15 amp, 115v GFCI receptacle with “Wet in Use” cover. The “powered” option allows the installer to power the outlet from the line side of the disconnect or load side as required by code. The “unpowered” option is to be powered from a separate 115/120v power source.
Non--fused Disconnect
This OSHA--compliant, factory--installed, safety switch allows a service technician to locally secure power to the rooftop.
6
FACTORY OPTIONS AND/OR ACCESSORIES (CON’T)
Motormaster Head Pressure Controller
The Motormaster motor controller is a low ambient, head pressure controller kit that is designed to maintain the unit’s condenser head pressure during periods of low ambient cooling operation. This device should be used as an alternative to economizer free cooling not when economizer usage is either not appropriate or desired. The Motormaster will either cycle the outdoor--fan motors or operate them at reduced speed to maintain the unit operation, depending on the model.
Winter Start Kit
The winter start kit by Bryant extends the low ambient limit of your rooftop to 25_F(--4_C). The kit bypasses the low pressure switch, preventing nuisance tripping of the low pressure switch. Other low ambient precautions may still be prudent.
Propane Heating
Convert your gas heat rooftop from standard natural gas operation to Propane using this field--installed kit.
High Altitude Heating
High altitudes have less oxygen, which means heat exchangers need less fuel. The new gas orifices in this field--installed kit make the necessary adjustment for high altitude applications. They restore the optimal fuel to air mixture and maintain healthy combustion at altitudes above 2000 ft (610m). Kits may not be required in all areas.
Flue Discharge Heat Shield
The flue discharge heat shield keeps people from touching the rooftop unit’s potentially hot flue discharge. This is especially useful for ground level applications, where more, untrained people could have access to the unit’s exterior.
Alternate Motors and Drives
Some applications need larger horsepower motors, some need more airflow, and some need both. Regardless of the case, your Bryant expert has a factory installed combination to meet your application. A wide selection of motors and pulleys (drives) are available, factory installed, to handle nearly any application.
Thru--the--Base Connections
Thru--the--base connections, available as either an accessory or as a factory option, are necessary to ensure proper connection and seal when routing wire and piping through the rooftop’s basepan and curb. These couplings eliminate roof penetration and should be considered for gas lines, main power lines, as well as control power.
581J
Flue Discharge Deflector
The flue discharge deflector is a useful accessory when flue gas recirculation is a concern. By venting the flue discharge upwards, the deflector minimizes the chance for a neighboring unit to intake the flue exhaust.
Optional Stainless Steel Heat Exchanger
The stainless steel heat exchanger option provides the tubular heat exchanger be made out of a minimum 20 gauge type 409 stainless steel for applications where the mixed air to the heat exchanger is expected to drop below 45_F(7_C). Stainless steel may be specified on applications where the presence of airborne contaminants require its use (applications such as paper mills) or in area with very high outdoor humidity that may result in severe condensation in the heat exchanger during cooling operation.
7
TABLE 2 – AHRI COOLING RATING TABLE 1--STAGE COOLING
UNIT
04A 1 3 36.0 2.9 15.00 12.50 N/A 05A 1 4 48.5 3.7 15.60 13.00 N/A 06A 1 5 57.5 4.6 15.20 12.45 N/A 07A 1 6 73.0 6.0 N/A 12.00 13.00
COOLING
STAGES
NOM.
CAPACITY
(TONS)
NET
COOLING
CAPACITY
(MBH)
TOTAL
POWER (kW)
SEER EER IEER
TABLE 3 – AHRI COOLING RATING TABLE 2--STAGE COOLING
UNIT
08D 2 7.5 89.0 7.4 N/A 12.00 13.00 09D 2 8.5 97.0 8.1 N/A 12.00 13.00
COOLING
STAGES
NOM.
CAPACITY
(TONS)
NET
COOLING
CAPACITY
(MBH)
TOTAL
POWER (kW)
SEER EER IEER
LEGEND
581J
AHRI --- Air Conditioning, Heating and Refrigeration
Institute Test Standard
ASHRAE --- American Society of Heating, Refrigerating
and Air Conditioning, Inc. EER --- Energy Efficiency Ratio IEER --- Integrated Energy Efficiency Ratio SEER --- Seasonal Energy Efficiency Ratio
Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org.
NOTES:
1. Rated in accordance with AHRI Standards 210/240 (04---06 size) and 340/360 (07---09 size).
2. Ratings are based on: Cooling Standard: 80_F(27_C) db, 67_F(19_C) wb indoor air temp and 95_F(35_C) db outdoor air temp. IEER Standard: A measure that expresses cooling part---load EER efficiency for commercial unitary air --­conditioning and heat pump equipment on the basis of weighted operation at various load capacities.
3. All 581J units comply with ASHRAE 90.1 2001, 2004 Energy Standard for minimum SEER and EER requirements.
4. 581J units comply with US Energy Policy Act (2005). To evaluate code compliance requirements, refer to state and local codes or visit the following website: http://bcap ---energy .org.
8
TABLE 4 – HEATING RATING TABLE -- NATURAL GAS & PROPANE
Units Gas Heat
LOW 50 / 41 72 / 59 25 --- 55 82% 81%
04
05
Single Phase
06
04
05
06
07
Three Phase
08
09
MED 82 / 66 115 / 93 55 --- 85 80% 80%
HIGH --- --- --- --- ---
LOW 50 / 41 72 / 59 25 --- 55 82% 81% MED 82 / 66 115 / 93 35 --- 65 81% 80%
HIGH 120 / 96 150 / 120 50 --- 80 80% 80%
LOW 50 / 41 72 / 59 20 --- 55 82% 81% MED 82 / 66 115 / 93 30 --- 65 81% 80%
HIGH 120 / 96 150 / 120 40 --- 80 80% 80%
LOW 50 / 41 72 / 59 25 --- 55 82% N/A MED 82 / 66 115 / 93 55 --- 85 80% N/A
HIGH --- --- --- --- ---
LOW 50 / 41 72 / 59 25 --- 55 82% N/A MED 82 / 66 115 / 93 35 --- 65 81% N/A
HIGH 120 / 96 150 / 120 50 --- 80 80% N/A
LOW 50 / 41 72 / 59 20 --- 55 82% N/A MED 82 / 66 115 / 93 30 --- 65 81% N/A
HIGH 120 / 96 150 / 120 40 --- 80 80% N/A
LOW 50 / 41 72 / 59 15 --- 55 82% N/A MED 90 / 73 125 / 103 20 --- 50 82% N/A
HIGH 105 / 84 150 / 120 30 --- 60 81% N/A
LOW 90 / 73 125 / 103 20 --- 50 82% N/A MED 120 / 98 180 / 148 35 --- 65 82% N/A
HIGH 180 / 147 224 / 184 45 --- 75 82% N/A
LOW 90 / 73 125 / 103 20 --- 50 82% N/A MED 120 / 98 180 / 148 30 --- 65 82% N/A
HIGH 180 / 147 224 / 184 40 --- 75 82% N/A
AL/SS HEAT EXCHANGER
INPUT / OUTPUT
STAGE 1 (MBH)
INPUT / OUTPUT
STAGE 2 (MBH)
TEMP RISE
(DEG F)
NOTES:
Heat ratings are for natural gas heat exchangers operated at or below 2000 ft (610 m). For information on Propane or alti­tudes above 2000 ft (610 m), see the Application Data section of this book. Accessory Propane/High Altitude kits are also available.
THERMAL
EFFICIENCY
(%)
AFUE
(%)
581J
In the USA the input rating for altitudes above 2000 ft (610m) must be derated by 4% for each 1000 ft (305 m) above sea level. In Canada, the input rating must be derated by 10% for altitudes of 2000 ft (610 m) to 4500 ft (1372 m) above sea level.
9
TABLE 5 – HEATING RATING TABLE -- LOW NO
1
X
LOW NOx HEAT EXCHANG ER
UNIT
GAS HEAT
INPUT / OUTPUT
STAGE 1 (MBH)
INPUT / OUTPUT
STAGE 2 (MBH)
LOW --- 60 / 50 20 --- 50 81% 80%
04
MED --- 90 / 74 30 --- 60 81% 81%
HIGH --- --- --- --- ---
LOW --- 60 / 50 20 --- 50 81% 80%
05
MED --- 90 / 74 30 --- 60 81% 81%
HIGH --- 120 / 101 40 --- 70 81% 80%
Single Phase
06
LOW --- 60 / 50 15 --- 50 81% 80% MED --- 90 / 74 25 --- 60 80% 81%
HIGH --- 120 / 101 35 --- 70 80% 81%
LOW --- 60 / 50 20 --- 50 81% 80%
04
MED --- 90 / 74 30 --- 60 81% 81%
HIGH --- --- --- --- ---
LOW --- 60 / 50 20 --- 50 81% 80%
581J
05
Three Phase
06
MED --- 90 / 74 30 --- 60 81% 81%
HIGH --- 120 / 101 40 --- 70 81% 80%
LOW --- 60 / 50 15 --- 50 81% 80% MED --- 90 / 74 25 --- 60 80% 81%
HIGH --- 120 / 101 35 --- 70 80% 81%
NOTE:
1. Units meet California’s South Coast Air Quality Management District (SCAQMD) Low -- -NO nanograms per joule or less.
TEMP RISE
(DEG F)
THERMAL
EFFICIENCY
(%)
emissions requirement of 40
x
AFUE
(%)
TABLE 6 – SOUND PERFORMANCE TABLE
UNIT
COOLING
STAGES
A --- W E I G H T E D 63 125 250 500 1000 2000 4000 8000
04A 1 76 78.2 78.0 74.2 73.3 70.6 66.0 62.4 56.9 05A 1 78 84.7 83.6 77.1 74.6 72.3 68.3 64.7 60.9 06A 1 77 87.5 82.5 76.1 73.6 71.3 67.1 64.1 60.0
07A 1 82 90.1 82.6 81.0 79.4 77.0 73.0 70.4 66.7 08D 2 82 90.6 84.3 80.2 79.3 77.1 72.2 67.4 63.7 09D 2 82 88.6 85.0 81.6 79.5 77.4 74.1 71.0 66.3
LEGEND
dB --- Decibel
Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program For verification of certification for individual products, go to www.ahridirectory.org.
OUTDOOR SOUND (dB) AT 60
NOTES:
1. Outdoor sound data is measure in accordance with AHRI.
2. Measurements are expressed in terms of sound power. Do not compare these values to sound pressure values because sound pressure depends on specific environ­mental factors which normally do not match individual applications. Sound power values are independent of the environment and therefore more accurate.
3. A --- weighted sound ratings filter out very high and very low frequencies, to better approximate the response of “average” human ear. A -- -weighted measurements for Bryant units are taken in accordance with AHRI.
10
TABLE 7 – MINIMUM -- MAXIMUM AIRFLOW RATINGS -- NATURAL GAS & PROPANE
UNIT HEAT LEVEL
LOW
581J*04
581J*05
581J*06
581J*07
581J*08
581J*09
MED 1000 1550 HIGH --- --­LOW
MED 1330 2460 HIGH 1390 2220 LOW
MED 1330 2880 HIGH 1390 2780 LOW
MED 1330 4750 HIGH 1390 3750 LOW
MED 2100 3900 HIGH 2270 3780 LOW
MED 2100 4560 HIGH 2270 4250
MINIMUM MAXIMUM MINIMUM MAXIMUM
1200 2000
1500 2500
1800 3000
2250 3750
2550 4250
COOLING HEATING
990 2190
900 1500
990 2190
990 2730
990 3640
1900 4750
1900 4750
581J
11
TABLE 8 – PHYSICAL DATA (COOLING) 3 -- 6 TONS
581J*04A 581J*05A 581J*06A 581J*07A
Refrigeration System
#Circuits/#Comp./Type 1/1/Scroll 1/1/Scroll 1/1/Scroll 1/1/Scroll
Puronr refrig. (R--- 410A) charge A/B (lbs ---oz) 9 --- 0 1 2 --- 8 13 --- 3 14 --- 0
Metering Device TXV TXV TXV TXV
High---press. Trip / Reset (psig) 630 / 505 630 / 505 630 / 505 630 / 505
Low---press. Trip / Reset (psig) 54 / 117 54 / 117 54 / 117 54 / 117
Compressor Capacity Staging (%) 100% 100% 100% 100%
Evap. Coil
Material (Tube Fin) Cu / Al Cu / Al Cu / Al Cu / Al
Coil type 3/8” RTPF 3/8” RTPF 3/8” RTPF 3/8” RTPF
Rows / FPI 3 / 15 3/15 4/15 3/15
Tota l F ace Ar e a ( f t2)5.5 7.3 7.3 8.9
Condensate Drain Conn. Size 3/4” 3/4” 3/4” 3/4”
Evap. Fan and Motor
581J
Motor Qty / Drive Type 1/Direct
Max BHP 1
RPM Range 600---1200 600 ---1200 600--- 1200 n/a
1phase
Standard Static
3phase
Standard Static
3phase
Medium Static
3phase
High Static
Motor Frame Size 48 48 48 n/a
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal 1/Centrifugal n/a
Fan Diameter (in) 10 x 10 10 x 10 11 x 10 n/a
Motor Qty / Drive Type 1/Direct 1/Direct 1/Direct 1/Belt
Max BHP 1 1 1 2.4
RPM Range 600---1200 600 ---1200 600--- 1200 1073--- 1457
Motor Frame Size 48 48 48 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 10 x 10 10 x 10 11 x 10 10 x 10
Motor Qty / Drive Type 1/Belt 1/Belt 1/Belt 1/Belt
Max BHP 1.2 1.7 2.4 2.9
RPM Range 770---1175 920 ---1303 1035---1466 1173---1518
Motor Frame Size 48 56 56 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 10 x 10 10 x 10 10 x 10 10 x 10
Motor Qty / Drive Type 1/Belt 1/Belt 1/Belt 1/Belt
Max BHP 2.4 2.9 2.9 3.7
RPM Range 1035--- 1466 1208 --- 1639 1303---1687 1474- --1788
Motor Frame Size 56 56 56 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 10 x 10 10 x 10 10 x 10 10 x 10
1/Direct 1/Direct n/a
1 1 n/a
Cond. Coil
Cond. fan / motor
Filters
Material (Tube/Fin) Cu / Al Cu / Al Cu / Al Cu / Al
Coil type 3/8” RTPF 3/8” RTPF 3/8” RTPF 3/8” RTPF
Rows / FPI 2 / 17 2/17 2/17 2/17
Tota l F ace Ar e a ( f t2) 12.7 21.3 21.3 20.5
Qty / Motor Drive Type 1/ Direct 1/ Direct 1/ Direct 2/ Direct
Motor HP / RPM 1/8 / 825 1/4 / 1100 1/4 / 1100 1/4 / 1100
Fan diameter (in) 22 22 22 22
RA Filter # / Size (in) 2 / 16 x 25 x 2 4/16x16x2 4/16x16x2 4/16x20x2
OA inlet screen # / Size (in) 1/20x24x1 1/20x24x1 1/20x24x1 1/20x24x1
12
TABLE 9 – PHYSICAL DATA (HEATING) 3 -- 6 TONS
581J*04A 581J*05A 581J*06A 581J*07A
Gas Connection
#ofGasValves 1 1 1 1
Nat. gas supply line press (in. w.g.)/(PSIG) 4 --- 13 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7 4 --- 13 / 0 . 1 8 --- 0 . 4 7 4 --- 1 3 / 0 . 1 8 --- 0 . 4 7
Propane supply line press (in. w.g.)/(PSIG) 11 --- 13 / 0.40 --- 0.47 11 ---13 / 0.40 --- 0.47 11 ---13 / 0.40 --- 0.47 11 --- 13 / 0.40 --- 0.47
Heat Anticipator Setting (Amps)
1st stage 0.14 0.14 0.14 0.14
2nd stage 0.14 0.14 0.14 0.14
Natural Gas, Propane Heat
#ofstages/#ofburners(total) 1or2/2 1or2/2 1or2/2 2/2
Connection size 1/2” NPT 1/2” NPT 1/2” NPT 1/2” NPT
LOW
Rollout switch opens / closes 195 / 115 195 / 115 195 / 115 195 / 115
Temperatureriserange(F) 25 --- 55 25 --- 55 20 --- 55 15 --- 55
#ofstages/#ofburners(total) 1or2/3 1or2/3 1or2/3 2/3
MED
HIGH
Low NOxGas Heat
LOW
MED
HIGH
Rollout switch opens / closes 195 / 115 195 / 115 195 / 115 195 / 115
Temperatureriserange(F) 55 --- 85 35 --- 65 30 --- 65 20 --- 50
#ofstages/#ofburners(total) --- 1/2” NPT 1/2” NPT 3/4” NPT
Rollout switch opens / closes --- 195 / 115 195 / 115 195 / 115
Temperatureriserange(F) --- 50 --- 80 40 --- 80 30 --- 60
#ofstages/#ofburners(total) 1or2/2 1or2/2 1or2/2 ---
Rollout switch opens / closes 195 / 115 195 / 115 195 / 115 ---
Temperatureriserange(F) 20 --- 50 20 --- 50 15 --- 50 ---
#ofstages/#ofburners(total) 1or2/3 1or2/3 1or2/3 ---
Rollout switch opens / closes 195 / 115 195 / 115 195 / 115 ---
Temperatureriserange(F) 30 --- 60 30 --- 60 25 --- 60 ---
#ofstages/#ofburners(total) --- 1or2/3 1or2/3 ---
Rollout switch opens / closes --- 195 / 115 195 / 115 ---
Temperatureriserange(F) --- 40 --- 70 35 --- 70 ---
Connection size 1/2” NPT 1/2” NPT 1/2” NPT 1/2” NPT
Connection size --- 1or2/3 1or2/3 2/4
Connection size 1/2” NPT 1/2” NPT 1/2” NPT ---
Connection size 1/2” NPT 1/2” NPT 1/2” NPT ---
---
Connection size --- 1/2” NPT 1/2” NPT ---
581J
13
TABLE 10 – PHYSICAL DATA (COOLING) 7.5 -- 8.5 TONS
581J*08D 581J*09D
Refrigeration System
#Circuits/#Comp./Type 2/2/Scroll 2/2/Scroll
R--- 410a charge A/B (lbs --- oz) 9 --- 10 / 9 --- 10 9 --- 1 9 / 9 --- 1 4
Metering device TXV TXV
High---press. Trip / Reset (psig) 630 / 505 630 / 505
Low---press. Trip / Reset (psig) 54 / 117 54 / 117
Compressor Capacity Staging (%) 50% / 100% 50% / 100%
Evap. Coil
Material (Tube/Fin) Cu / Al Cu / Al
Coil type 3/8” RTPF 3/8” RTPF
Rows / FPI 4 / 15 4/15
total face area (ft2) 11.1 11.1
Condensate drain conn. size 3/4” 3/4”
Evap. fan and motor
Motor Qty / Drive type 1/Belt 1/Belt
Max BHP 1.7 1.7
RPM range 518--- 733 518--- 733
581J
3phase
Standard Static
3phase
Medium Static
motor frame size 56 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 15 x 15 15 x 15
Motor Qty / Drive type 1/Belt 1/Belt
Max BHP 2.4 2.4
RPM range 690--- 936 690--- 936
motor frame size 56 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 15 x 15 15 x 15
3phase
High Static
Cond. Coil
Cond. fan / motor
Filters
Motor Qty / Drive type 1/Belt 1/Belt
Max BHP 3.7 3.7
RPM range 838 --- 1084 838--- 1084
motor frame size 56 56
Fan Qty / Typ e 1/Centrifugal 1/Centrifugal
Fan Diameter (in) 15 x 15 15 x 15
Material (Tube/Fin) Cu / Al Cu / Al
Coil type 3/8” RTPF 3/8” RTPF
Rows / FPI 2 / 17 2/17
Tota l F ace Ar e a ( f t2) 25.1 25.1
Qty / Motor drive type 2 / direct 2/direct
Motor HP / RPM 1/4 / 1100 1/4 / 1100
Fan diameter (in) 22 22
RAFilter#/size(in) 4/20x20x2 4/20x20x2
OA inlet screen # / size (in) 1/20x24x1 1/20x24x1
14
TABLE 11 – PHYSICAL DATA (HEATING) 7.5 -- 8.5 TONS
581J*08D 581J*09D
Gas Connection
#ofGasValves 1 1 Nat. gas supply line press (in. w.g.)/(PSIG) 4 --- 13 / 0 . 1 8 --- 0 . 4 7 4 --- 13 / 0 . 1 8 --- 0 . 4 7 Propane supply line press (in. w.g.)/(PSIG) 11 --- 13 / 0.40 --- 0.47 11 --- 13 / 0.40 --- 0.47
Heat Anticipator Setting (Amps)
1st stage 0.14 0.14
2nd stage 0.14 0.14
Natural Gas, Propane Heat
#ofstages/#ofburners(total) 2/3 2/3
Connection size 1/2” NPT 1/2” NPT
LOW
Rollout switch opens / closes 195 / 115 195 / 115
Temperatureriserange(F) 20 --- 50 20 --- 50
MED
HIGH
#ofstages/#ofburners(total) 2/4 2/4
Connection size 3/4” NPT 3/4” NPT
Rollout switch opens / closes 195 / 115 195 / 115
Temperatureriserange(F) 35 --- 65 30 --- 65
#ofstages/#ofburners(total) 2/5 2/5
Connection size 3/4” NPT 3/4” NPT
Rollout switch opens / closes 195 / 115 195 / 115
Temperatureriserange(F) 45 --- 75 40 --- 75
581J
15
CURBS & WEIGHTS DIMENSIONS -- 581J04--06
NOTES:
1. DIMENSIONS ARE IN INCHES, DIMENSIONS IN [ ] ARE IN MILLIMETERS.
2. CENTER OF GRAVITY
3. DIRECTION OF AIR FLOW
32-1/4
818[]
33-3/8
848[]
ECONOMIZER HOOD (OPTIONAL)
16
406[]
581J
E STD.
CONDENSATE
DRAIN
16-3/4
168[]
SUPPLY AIR
SUPPLY AIR
CONVENIENCE
427[]
26-3/4
681[]
CONDENSER COIL
OPTIONAL
FACTORY
INSTALLED
7
OUTLET
177[]
31-1/4
793[]
RIGHT
46-3/4
1187[]
11-3/8
3-3/4
95[]
289[]
6-1/8
155[]
6-5/8
LEFT
CONNECTION SIZES
A 1 3/8" [35] DIA FIELD POWER SUPPLY HOLE
B 2" [50] DIA POWER SUPPLY KNOCKOUT
C 1 3/4" [51] DIA GAUGE ACCESS PLUG
D 7/8" [22] DIA FIELD CONTROL WIRING HOLE
3/4"-14 NPT CONDENSATE DRAIN
E
1/2"-14 NPT GAS CONNECTION
F
2 1/2 " [64] DIA POWER SUPPLY KNOCK-OUT
G
10-1/2
265[]
25-1/8
638[]
RETURN
AIR
6
152[]
RETURN AIR
44
1117]
18-1/8
459[]
BAROMETRIC RELIEF FLOW
16-1/8
411[]
1-1/4
32[]
14-1/4
FILTER
21-1/4
539[]
363[]
OUTSIDE AIR
12-1/4
312[]
SEE THRU THE
BASE CHART
25
J
OPTIONAL
FACTORY
INSTALLED
DISCONNECT
636[]
C
W X
DRAIN OPENING Y Z
FLUE
4
HOOD
100[]
TOP
CONTROL BOX ACCESS PANEL
HANDLE
E ALT.
CONDENSATE
IN BASEPAN
6-1/4
157[]
30-1/8
764[]
25-5/8
652[]
RETURN AIR
17-3/4
451[]
SUPPLY
AIR
12-1/8
307[]
18-1/2
470[]
F
74-3/8
1888[]
8-3/8
213[]
26-1/2
673[]
10-7/8
277[]
3-3/8
85[]
RETURN AIR
29-3/8
747[]
SUPPLY AIR
INDOOR BLOWER ACCESS
HANDLE
FRONT
K
A, B, G
D
4-5/8
118[]
ELECTRICAL DISCONNECT LOCATION
19-1/2
494[]
6-5/8
168[]
THRU-THE-BASE CHART
THESE HOLES REQUIRED FOR USE
CRBTMPWR001A01, 003A01
THREADED
CONDUIT SIZE
FILTER ACCESS PANEL
(TOOL-LESS)
INDOOR COIL ACCESS PANEL
WIRE
USE
REQ'D HOLE
SIZES (MAX.)
W 1/2" ACC. 7/8" [22.2]
X 1/2" 24V 7/8" [22.2]
Y * 3/4" (001,003) POWER 1 1/8" [28.4]
Z** (003) 1/2" FPT GAS 1 3/16" [30.0]
FOR "THRU-THE-BASEPAN" FACTORY OPTION, FITTINGS FOR ONLY X,Y, & Z ARE PROVIDED
*
**
SELECT EITHER 3/4" OR 1/2"
FOR POWER, DEPENDING ON WIRE SIZE
(001) PROVIDES 3/4" FPT THRU CURB
FLANGE & FITTING.
BACK
COMP.
ACCESS
PANEL
CONDENSER COIL
2-5/8
67[]
TYP CURB WIDTH
UNIT J K
581J-04A
581J-05A
581J-06A
33 3/8
[847]
41 3/8 [1051]
41 3/8 [1051]
18 5/8
[472]
14 7/8
[377]
14 7/8
[377]
C10378
Fig. 1 -- Dimensions 581J04--06
16
CURBS & WEIGHTS DIMENSIONS -- 581J04--06 (cont.)
UNIT
STD. UNIT
WEIGHT
CORNER
WEIGHT (A)
CORNER
WEIGHT (B)
CORNER
WEIGHT (C)
CORNER
WEIGHT (D)
LBS. KG. LBS. KG. LBS. KG. LBS. KG. LBS. KG. X Y Z
581J-04A
581J-05A
581J-06A
505 229 124 56 117 53 128 58 136 62 36 1/8 [918] 24 3/8 [619] 19 [483]
590 268 151 69 144 65 144 65 151 69 36 1/4 [921] 23 3/8 [594] 20 1/8 [511]
600 271 156 71 145 66 144 65 155 70 35 7/8 [911] 23 1/4 [591] 19 1/2 [495]
*- STANDARD UNIT WEIGHT IS WITH LOW GAS HEAT AND WITHOUT PACKAGING. FOR OTHER OPTINS AND ACCESSORIES REFER TO THE PRODUCT DATA CATALOG.
CORNER A
Y
CORNER D
X
TOP
CORNER B
CORNER C
Fig. 2 -- Dimensions 581J04--06
C.G. HEIGHT
C10379
Z
581J
C
B
Fig. 3 -- Service Clearance
LOC DIMENSION CONDITION
48” (1219 mm) Unit disconnect is mounted on panel
A
B
C
D
18” (457 mm) No disconnect, convenience outlet option 18” (457 mm) Recommended service clearance 12” (305 mm) Minimum clearance
42” (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall)
36” (914 mm) Surface behind servicer is electrically non --- conductive (e.g., wood, fiberglass)
Special Check for sources of flue products within 10---ft of unit fresh air intake hood 36” (914 mm) Side condensate drain is used 18” (457 mm) Minimum clearance
48” (1219 mm) No flue discharge accessory installed, surface is combustible material 42” (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
36” (914 mm) Surface behind servicer is electrically non --- conductive (e.g., wood, fiberglass)
Special Check for adjacent units or building fresh air intakes within 10 --- ft of this unit’s flue outlet
D
A
C08337
17
CURBS & WEIGHTS DIMENSIONS -- 581J04--06 (cont.)
CRBTMPWR001A01
CRBTMPWR003A01
581J
CONNECTOR
PKG. ACCY.
BC
11
1’-4”
/16”
1’-9
[551]
[406]
D ALT
DRAIN
HOLE
3
1
/4”
[44.5]
GAS POWER CONTROL
3
/4” [19]
NPT
1
/2” [12.7]
NPT
3
/4” [19]
NPT
1
/2” [12.7]
NPT
ACCESSORY
POWER
1
/2” [12.7]
NPT
ROOFCURB
ACCESSORY
CRRFCURB001A01
CRRFCURB002A01
A UNIT SIZE
1’-2” [356]
581J*04-06
2’-0” [610]
NOTES:
1. Roof curb accessory is shipped disassembled.
2. Insulated panels.
3. Dimensions in [ ] are in millimeters.
4. Roof curb: galvanized steel.
5. Attach ductwork to curb (flanges of duct rest on curb).
6. Service clearance: 4 ft on each side.
7. Direction of airflow.
8. Connector package CRBTMPWR001A01 is for thru-the-curb type gas. CRBTMPWR003A01 is for thru-the-base type gas connections.
Fig. 4 -- Roof Curb Details
18
Typical Corner Fastening Device
C10423
CURBS & WEIGHTS DIMENSIONS -- 581J07--09
581J
581J 581J
581J
Fig. 5 -- Dimensions 581J07--09
19
581J-07A
581J-08D
581J-09D
36 3/8
(924) 36 3/8
(924)
C10425
581J
CURBS & WEIGHTS DIMENSIONS -- 581J07--09 (cont.)
581J-07A
581J-08D
581J-09D
C10381
Fig. 6 -- Dimensions 581J07--09
C
B
Fig. 7 -- Service Clearance
LOC DIMENSION CONDITION
48” (1219 mm) Unit disconnect is mounted on panel
A
B
C
D
18” (457 mm) No disconnect, convenience outlet option 18” (457 mm) Recommended service clearance 12” (305 mm) Minimum clearance
42” (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall)
36” (914 mm) Surface behind servicer is electrically non --- conductive (e.g., wood, fiberglass)
Special Check for sources of flue products within 10---ft of unit fresh air intake hood 36” (914 mm) Side condensate drain is used 18” (457 mm) Minimum clearance
48” (1219 mm) No flue discharge accessory installed, surface is combustible material 42” (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
36” (914 mm) Surface behind servicer is electrically non --- conductive (e.g., wood, fiberglass)
Special Check for adjacent units or building fresh air intakes within 10 --- ft of this unit’s flue outlet
D
A
C08337
20
CURBS & WEIGHTS DIMENSIONS -- 581J07--09 (cont.)
ROOFCURB ACCESSORY
CRRFCURB003A01
CRRFCURB004A01
A
1’ - 2” [356]
2’ - 0” [610]
UNIT SIZE
581J*A07 581J*D08-09
581J
Fig. 8 -- Roof Curb Details
21
Typical Corner Fastening Device
C10424
OPTIONS & ACCESSORY WEIGHTS
OPTION / ACCESSORY WEIGHTS
OPTION / ACCESSORY
Power Exhaust - -- vertical 50 23 50 23 50 23 50 23 75 34 75 34 Power Exhaust - -- horizontal 30 14 30 14 30 14 30 14 30 14 30 14 EconoMi$er(IV or 2) 50 23 50 23 50 23 50 23 75 34 75 34 Two Position damper 39 18 39 18 39 18 39 18 58 26 58 26 Manual Dampers 12 5 12 5 12 5 18 8 18 8 18 8 Medium Gas Heat 12 5 9 4 9 4 9 4 15 7 15 7 High Gas Heat --- --- 17 8 17 8 17 8 29 13 29 13 Hail Guard (louvered) 16 7 16 7 16 7 16 7 34 15 34 15 Cu/Cu Condenser Coil 35 16 95 43 95 43 95 43 95 43 95 43 Cu/Cu Cond. & Evaporator Coils 60 27 130 59 150 68 165 75 185 88 195 88 Roof Curb (14 - --in. curb) 115 52 115 52 115 52 115 52 143 65 143 65 Roof Curb (24 - --in. curb) 197 89 197 89 197 89 197 89 245 111 245 111
581J
CO2sensor 5 2 5 2 5 2 5 2 5 2 5 2 Flue Discharge Deflector 7 3 7 3 7 3 7 3 7 3 7 3 Optional Indoor Motor/Drive 10 5 10 5 10 5 10 5 15 7 15 7 Motor Master Controller 35 16 35 16 35 16 35 16 35 16 35 16 Return Smoke Detector 5 2 5 2 5 2 5 2 5 2 5 2 Supply Smoke Detector 5 2 5 2 5 2 5 2 5 2 5 2 Fan/Filter Status Switch 2 1 2 1 2 1 2 1 2 1 2 1 Non ---Fused Disconnect 15 7 15 7 15 7 15 7 15 7 15 7 Powered Convenience outlet 35 16 35 16 35 16 35 16 35 16 35 16 Non ---Powered Convenience outlet 5 2 5 2 5 2 5 2 5 2 5 2 Enthalpy Sensor 2 1 2 1 2 1 2 1 2 1 2 1 Differential Enthalpy Sensor 3 1 3 1 3 1 3 1 3 1 3 1
04 05 06 07 08 09
lb kg lb kg lb kg lb kg lb kg lb kg
22

APPLICATION DATA

Min operating ambient temp (cooling):
In mechanical cooling mode, your Bryant rooftop unit can safely operate down to an outdoor ambient temperature of 35_F(--2_C) and 25_F(--4_C), with an accessory winter start kit. It is possible to provide cooling at lower outdoor ambient temperatures by using less outside air, economizers, and/or accessory low ambient kits.
Max operating ambient temp (cooling):
The maximum operating ambient temperature for cooling mode is 125_F(52_C). While cooling operation above 125_F(52_C) may be possible, it could cause either a reduction in performance, reliability, or a protective action by the unit’s internal safety devices.
Min mixed air temp (heating):
Using the factory settings, the minimum temperatures for the mixed air (the combined temperature of the warm return air and the cold outdoor air) entering the dimpled, gas heat exchangers are:
Aluminized Stainless Steel
50_F(10_C) continuous
45_F(7_C) intermittent
Operating at lower mixed--air temperatures may be possible, if a field--supplied, outdoor air thermostat initiates both heat stages when the temperature is less than the minimum temperatures listed above. Please contact your local Bryant representative for assistance.
40_F(4_C) continuous
35_F(2_C) intermittent
Outdoor air application strategies:
Economizers reduce operating expenses and compressor run time by providing a free source of cooling and a means of ventilation to match application changing needs. In fact, they should be considered for most applications. Also, consider the various economizer control methods and their benefits, as well as sensors required to accomplish your application goals. Please contact your local Bryant representative for assistance.
Motor limits, brake horsepower (BHP):
Due to internal design of Bryant units, the air path, and specially designed motors, the full horsepower (maximum continuous BHP) band, as listed in Table 8 and 10, can be used with the utmost confidence. There is no need for extra safety factors, as Bryant motors are designed and rigorously tested to use the entire, listed BHP range without either nuisance tripping or premature motor failure.
Propane heating:
Propane has different physical qualities than natural gas. As a result, Propane requires different fuel to air mixture. To optimize the fuel/air mixture for Propane, Bryant sells different burner orifices in an easy to install accessory kit. To select the correct burner orifices or determine the heat capacity for an Propane application, use either the selection software, or the unit’s service manual.
High altitude heating:
581J
Min and max airflow (heating and cooling):
To maintain safe and reliable operation of your rooftop, operate within the heating airflow limits during heating mode and cooling airflow limits during cooling mode. Operating above the max may cause blow--off, undesired airflow noise, or airflow related problems with the rooftop unit. Operating below the min may cause problems with coil freeze--up and unsafe heating operation. Heating and cooling limitations differ when evaluating operating CFM, the minimum value is the HIGHER of the cooling and heating minimum CFM values published in Table 7 and the maximum value is the LOWER of the cooling and heating minimum values published in Table 7.
Heating--to--cooling changeover:
Your unit will automatically change from heating to cooling mode when using a thermostat with an auto--change--over feature.
Airflow:
All units are draw--though in cooling mode and blow--through in heating mode.
High altitudes have less oxygen, which affects the fuel/air mixture in heat exchangers. In order to maintain a proper fuel/air mixture, heat exchangers operating in altitudes above 2000 ft (610 m) require different orifices. To select the correct burner orifices or determine the heat capacity for a high altitude application, use either the selection software, or the unit’s service manual.
High altitudes have less oxygen, which means heat exchangers need less fuel. The new gas orifices in this field--installed kit make the necessary adjustment for high altitude applications. They restore the optimal fuel to air mixture and maintain healthy combustion on altitudes above 2000 ft (610 m).
NOTE: Typical natural gas heating value ranges from 975 to 1050 Btu/ft value goes down approximately 1.7% per every thousand feet elevation. Standard factory orifices can typically be used up to 2000 ft (610m) elevation without any operational issues.
NOTE: For installations in Canada, the input rating should be derated by 10% for altitudes from 2000 ft (610m)to 4500 ft (1372m) above sea level.
3
at sea level nationally. The heating
23
APPLICATION DATA (cont.)
Sizing a rooftop
Bigger isn’t necessarily better. While an air conditioner needs to have enough capacity to meet the design loads, it doesn’t need excess capacity. In fact, excess capacity typically results in very poor part load performance and humidity control.
Using higher design temperatures than ASHRAE recommends for your location, adding “safety factors” to the calculated load, are all signs of oversizing air conditioners. Oversizing the air conditioner leads to poor humidity control, reduced efficiency, higher utility bills, larger indoor temperature swings, excessive noise, and increased wear and tear on the air conditioner.
Rather than oversizing an air conditioner, engineers
581J
should “right--size” or even slightly undersize air conditioners. Correctly sizing an air conditioner controls humidity better; promotes efficiency; reduces utility bills; extends equipment life, and maintains even, comfortable temperatures. Please contact your local Bryant representative for assistance.
Low ambient applications
The optional Bryant economizer can adequately cool your space by bringing in fresh, cool outside air. In fact, when so equipped, accessory low--ambient kit may not be necessary. In low ambient conditions, unless the outdoor air is excessively humid or contaminated, economizer--based “free cooling” is the preferred less costly and energy conscious method.
In low ambient applications where outside air might not be desired (such as contaminated or excessively humid outdoor environments), your Bryant rooftop can operate to ambient temperatures down to --20_F(--29_C) using the recommended accessory Motormaster low ambient controller.
24
SELECTION PROCEDURE (WITH 581J*07A EXAMPLE)
I. Determine cooling and heating loads.
Given: Mixed air dry bulb 80_F(27_C) Mixed air wet bulb 67_F(19_C) Ambient dry bulb 95_F(35_C) TC
Load
SHC
Load
Vertical supply air 2100 CFM Heating load 85.0 MBH External static pressure 0.67 in. wg Electrical characteristics 230--3--60
II. Make an initial guess at cooling tons.
Refrig. tons = TC Refrig. tons = 72.0 / 12 = 6.0 tons In this case, start by looking at the 581J**07.
III. Look up the rooftop’s TC and SHC.
Table 15 shows that, at the application’s supply air CFM, mixed air and ambient temperatures, the 581J*A07 supplies: TC = 73.6 MBH
2
SHC = 53.3 MBH
IV. Calculate the building latent heat load.
LC LC
=TC
Load Load
Load
= 72.0 MBH -- 54.0 MBH = 18.0 MBH
V. Calculate RTU latent heat capacity.
LC = TC -- SHC LC = 73.6 MBH -- 53.3 MBH = 20.3 MBH
VI. Compare RTU capacities to loads.
Compare the rooftop’s SHC and LC to the building’s sensible and latent heat loads.
/ 12 MBH per ton
Load
2
-- S H C
Load
3
73.6 MBH
53.3 MBH
1
VII. Select factory options (FIOP)
Local code requires an economizer for any unit with TC greater than 65.0 MBH.
VIII.Calculate the total static pressure.
External static pressure 0.67 in. wg Sum of FIOP / Accessory static +0.13 in.
Total Static Pressure 0.80 in. wg
IX. Look up the indoor fan RPM & BHP.
Table 36 shows, at 2100 CFM & ESP= 0.8, RPM = 712 & BHP = 1.17
X. Convert BHP (Step VIII) into fan motor heat.
Fan motor heat = 2.546* BHP/Motor Eff. Fan motor heat = 3.7 MBH
XI. Calculate RTU heating capacity.
Building heating load 85.0 MBH Fan motor heat --3.7
Required heating capacity 81.3 MBH
XII. Select a gas heater.
Table 4 shows the heating capacities of the 581JEA07 = 103.0 MBH. Select the 581JEA07
XIII.Determine electrical requirements.
Table 45 shows the MCA and Breaker Size of a 581J*A07 (without convenience outlet) as: MCA = 32.0 amps & MOCP = 50.0 amps Min. disconnect size: FLA = 31.0 & LRA = 148.
4
wg
581J
MBH
LEGEND
BHP — Break horsepower FLA — Full load amps LC — Latent capacity LRA — Lock rotor amp MBH — (1,000) BTUH MCA — Min. circuit ampacity MOCP — Max. over--- current protection RPM — Revolutions per minute RTU — Rooftop unit SHC — Sensible heat capacity TC — Total capacity
NOTES:
1. Selection software by Bryant saves time by performing many of the steps above. Contact your Bryant sales representative for assistance.
2. Unit ratings are gro ss capacities and do not include the effect of evaporator fan motor heat. See Step XI. for de­termining amount of evaporator fan motor heat to sub­tract from total and sensible capacities to obtain net cooling and net sensible capacities.
3. Selecting a unit with a SHC slightly lower than the SHC SHC’s will help control indoor humidity, and prevent temperature swings.
4. Indoor fan motor efficiency is available in Table 41. Use the decimal form in the equation, eg. 80% = .8.
is often better than oversizing. Slightly lower
Load
25
TABLE 12 – COOLING CAPACITIES 1--STAGE COOLING 3 TONS
AMBIENT TEMPERATURE
581J*04A
TC 32.1 32.1 36.3 30.8 30.8 34.9 29.4 29.4 33.4 28.0 28.0 31.7 26.3 26.3 29.8
58
SHC 27.8 32.1 36.3 26.7 30.8 34.9 25.5 29.4 33.4 24.2 28.0 31.7 22.8 26.3 29.8
TC 34.0 34.0 34.3 32.3 32.3 33.5 30.6 30.6 32.6 28.7 28.7 31.7 26.6 26.6 30.6
62
SHC 25.0 29.7 34.3 24.2 28.9 33.5 23.4 28.0 32.6 22.5 27.1 31.7 21.5 26.0 30.6
TC 37.3 37.3 37.3 35.5 35.5 35.5 33.6 33.6 33.6 31.5 31.5 31.5 29.2 29.2 29.2
67
SHC 20.7 25.4 30.0 20.0 24.6 29.3 19.2 23.8 28.4 18.3 22.9 27.6 17.4 22.0 26.6
TC 40.8 40.8 40.8 38.9 38.9 38.9 36.9 36.9 36.9 34.6 34.6 34.6 32.2 32.2 32.2
72
SHC 16.3 21.0 25.7 15.6 20.3 25.0 14.8 19.5 24.1 13.9 18.6 23.3 13.0 17.7 22.3
TC --- 43.9 43.9 --- 41.8 41.8 --- 39.6 39.6 --- 37.2 37.2 --- 34.6 34.6
78
SHC --- 17.4 22.4 --- 16.7 21.7 --- 15.9 20.8 --- 15.1 19.9 --- 14.2 19.0
TC 33.8 33.8 38.4 32.5 32.5 36.8 31.0 31.0 35.1 29.4 29.4 33.3 27.6 27.6 31.3
58
SHC 29.3 33.8 38.4 28.1 32.5 36.8 26.9 31.0 35.1 25.5 29.4 33.3 23.9 27.6 31.3
TC 35.1 35.1 37.5 33.3 33.3 36.6 31.5 31.5 35.7 29.6 29.6 34.5 27.7 27.7 32.6
62
SHC 26.9 32.2 37.5 26.0 31.3 36.6 25.1 30.4 35.7 24.1 29.3 34.5 22.7 27.7 32.6
TC 38.4 38.4 38.4 36.5 36.5 36.5 34.5 34.5 34.5 32.3 32.3 32.3 29.9 29.9 29.9
67
SHC 22.0 27.3 32.7 21.2 26.5 31.9 20.3 25.7 31.0 19.4 24.8 30.1 18.5 23.8 29.1
TC 42.0 42.0 42.0 40.0 40.0 40.0 37.8 37.8 37.8 35.5 35.5 35.5 32.9 32.9 32.9
72
SHC 16.9 22.3 27.6 16.1 21.5 26.9 15.3 20.7 26.0 14.4 19.8 25.1 13.5 18.8 24.2
TC --- 45.0 45.0 --- 42.9 42.9 --- 40.6 40.6 --- 38.0 38.0 --- 35.3 35.3
78
SHC --- 18.1 23.8 --- 17.4 23.0 --- 16.6 22.2 --- 15.7 21.3 --- 14.8 20.3
TC 35.3 35.3 40.0 33.9 33.9 38.4 32.3 32.3 36.6 30.6 30.6 34.7 28.7 28.7 32.5
58
SHC 30.6 35.3 40.0 29.4 33.9 38.4 28.0 32.3 36.6 26.5 30.6 34.7 24.9 28.7 32.5
TC 35.9 35.9 40.5 34.2 34.2 39.4 32.4 32.4 38.1 30.6 30.6 36.1 28.7 28.7 33.9
62
SHC 28.6 34.5 40.5 27.7 33.6 39.4 26.6 32.4 38.1 25.2 30.6 36.1 23.6 28.7 33.9
TC 39.3 39.3 39.3 37.3 37.3 37.3 35.2 35.2 35.2 32.9 32.9 32.9 30.5 30.5 31.6
67
SHC 23.1 29.1 35.2 22.3 28.3 34.4 21.4 27.5 33.5 20.5 26.6 32.6 19.5 25.6 31.6
TC 42.9 42.9 42.9 40.8 40.8 40.8 38.5 38.5 38.5 36.1 36.1 36.1 33.4 33.4 33.4
72
SHC 17.3 23.4 29.5 16.6 22.6 28.7 15.7 21.8 27.9 14.8 20.9 27.0 13.9 19.9 26.0
TC --- 45.9 45.9 --- 43.7 43.7 --- 41.3 41.3 --- 38.7 38.7 --- 35.9 35.9
78
SHC --- 18.8 25.1 --- 18.0 24.3 --- 17.2 23.4 --- 16.3 22.5 --- 15.4 21.5
TC 36.6 36.6 41.5 35.1 35.1 39.7 33.4 33.4 37.9 31.6 31.6 35.8 29.6 29.6 33.6
58
SHC 31.7 36.6 41.5 30.4 35.1 39.7 28.9 33.4 37.9 27.4 31.6 35.8 25.7 29.6 33.6
TC 36.7 36.7 43.2 35.1 35.1 41.3 33.4 33.4 39.4 31.6 31.6 37.3 29.6 29.6 34.9
62
SHC 30.2 36.7 43.2 28.8 35.1 41.3 27.5 33.4 39.4 26.0 31.6 37.3 24.4 29.6 34.9
TC 39.9 39.9 39.9 37.9 37.9 37.9 35.8 35.8 35.9 33.4 33.4 34.9 30.9 30.9 33.9
67
SHC 24.2 30.9 37.6 23.4 30.1 36.8 22.5 29.2 35.9 21.6 28.3 34.9 20.6 27.2 33.9
TC 43.6 43.6 43.6 41.4 41.4 41.4 39.1 39.1 39.1 36.6 36.6 36.6 33.9 33.9 33.9
72
SHC 17.8 24.5 31.3 17.0 23.7 30.5 16.1 22.9 29.6 15.2 22.0 28.7 14.3 21.0 27.7
TC --- 46.7 46.7 --- 44.4 44.4 --- 41.9 41.9 --- 39.2 39.2 --- 36.3 36.3
78
SHC --- 19.4 26.3 --- 18.6 25.5 --- 17.8 24.6 --- 16.9 23.7 --- 15.9 22.7
TC 37.7 37.7 42.7 36.1 36.1 40.9 34.3 34.3 38.9 32.5 32.5 36.8 30.4 30.4 34.4
58
SHC 32.6 37.7 42.7 31.3 36.1 40.9 29.8 34.3 38.9 28.1 32.5 36.8 26.3 30.4 34.4
TC 37.7 37.7 44.4 36.1 36.1 42.5 34.4 34.4 40.5 32.5 32.5 38.3 30.4 30.4 35.8
62
SHC 31.0 37.7 44.4 29.7 36.1 42.5 28.3 34.4 40.5 26.7 32.5 38.3 25.0 30.4 35.8
TC 40.5 40.5 40.5 38.4 38.4 39.1 36.2 36.2 38.2 33.8 33.8 37.2 31.2 31.2 36.1
67
SHC 25.2 32.6 40.0 24.4 31.7 39.1 23.5 30.8 38.2 22.5 29.9 37.2 21.5 28.8 36.1
TC 44.2 44.2 44.2 41.9 41.9 41.9 39.6 39.6 39.6 37.0 37.0 37.0 34.2 34.2 34.2
72
SHC 18.2 25.6 33.0 17.4 24.8 32.2 16.5 23.9 31.3 15.6 23.0 30.4 14.7 22.0 29.4
TC --- 47.2 47.2 --- 44.9 44.9 --- 42.3 42.3 --- 39.6 39.6 --- 36.7 36.7
78
SHC --- 19.9 27.5 --- 19.1 26.7 --- 18.3 25.8 --- 17.4 24.9 --- 16.4 23.9
581J
900 CfmEA(wb)
1050
CfmEA(wb)
1200
CfmEA(wb)
1350
CfmEA(wb)
1500
CfmEA(wb)
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
85 95 105 115 125
EA (dB) EA (dB) EA (dB) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
26
TABLE 13 – COOLING CAPACITIES 1--STAGE COOLING 4 TONS
581J*05A
1200
CfmEA(wb)
1400
CfmEA(wb)
1600
CfmEA(wb)
1800
CfmEA(wb)
2000
CfmEA(wb)
TC 43.2 43.2 49.1 41.5 41.5 47.2 39.7 39.7 45.1 37.7 37.7 42.9 35.6 35.6 40.4
58
SHC 37.3 43.2 49.1 35.9 41.5 47.2 34.3 39.7 45.1 32.6 37.7 42.9 30.7 35.6 40.4
TC 45.9 45.9 46.0 43.7 43.7 45.0 41.3 41.3 43.8 38.8 38.8 42.6 36.0 36.0 41.2
62
SHC 33.5 39.8 46.0 32.5 38.7 45.0 31.3 37.6 43.8 30.1 36.3 42.6 28.8 35.0 41.2
TC 50.5 50.5 50.5 48.0 48.0 48.0 45.4 45.4 45.4 42.6 42.6 42.6 39.6 39.6 39.6
67
SHC 27.9 34.1 40.4 26.8 33.1 39.4 25.7 32.0 38.2 24.5 30.8 37.1 23.2 29.5 35.8
TC 55.4 55.4 55.4 52.7 52.7 52.7 49.9 49.9 49.9 46.8 46.8 46.8 43.5 43.5 43.5
72
SHC 22.0 28.4 34.7 21.0 27.3 33.7 19.9 26.2 32.5 18.7 25.0 31.3 17.4 23.8 30.1
TC --- 59.7 59.7 --- 56.8 56.8 --- 53.7 53.7 --- 50.4 50.4 --- 46.8 46.8
78
SHC --- 23.6 30.2 --- 22.6 29.2 --- 21.5 28.1 --- 20.3 26.8 --- 19.1 25.5
TC 45.6 45.6 51.9 43.8 43.8 49.8 41.9 41.9 47.6 39.7 39.7 45.1 37.3 37.3 42.4
58
SHC 39.4 45.6 51.9 37.9 43.8 49.8 36.2 41.9 47.6 34.3 39.7 45.1 32.3 37.3 42.4
TC 47.4 47.4 50.5 45.1 45.1 49.3 42.6 42.6 48.0 40.0 40.0 46.5 37.4 37.4 44.2
62
SHC 36.0 43.2 50.5 34.9 42.1 49.3 33.7 40.9 48.0 32.4 39.5 46.5 30.6 37.4 44.2
TC 52.1 52.1 52.1 49.5 49.5 49.5 46.7 46.7 46.7 43.7 43.7 43.7 40.5 40.5 40.5
67
SHC 29.5 36.8 44.0 28.4 35.7 42.9 27.3 34.5 41.8 26.0 33.3 40.5 24.7 32.0 39.2
TC 57.1 57.1 57.1 54.3 54.3 54.3 51.2 51.2 51.2 48.0 48.0 48.0 44.5 44.5 44.5
72
SHC 22.8 30.1 37.4 21.7 29.0 36.3 20.5 27.8 35.1 19.3 26.6 33.9 18.0 25.3 32.6
TC --- 61.4 61.4 --- 58.3 58.3 --- 55.1 55.1 --- 51.6 51.6 --- 47.8 47.8
78
SHC --- 24.6 32.2 --- 23.5 31.1 --- 22.4 29.9 --- 21.2 28.7 --- 19.9 27.4
TC 47.7 47.7 54.2 45.8 45.8 52.0 43.7 43.7 49.6 41.3 41.3 47.0 38.8 38.8 44.1
58
SHC 41.2 47.7 54.2 39.5 45.8 52.0 37.7 43.7 49.6 35.7 41.3 47.0 33.5 38.8 44.1
TC 48.7 48.7 54.5 46.3 46.3 53.2 43.7 43.7 51.7 41.4 41.4 48.9 38.8 38.8 45.9
62
SHC 38.3 46.4 54.5 37.1 45.2 53.2 35.8 43.7 51.7 33.9 41.4 48.9 31.8 38.8 45.9
TC 53.3 53.3 53.3 50.6 50.6 50.6 47.7 47.7 47.7 44.6 44.6 44.6 41.2 41.2 42.6
67
SHC 31.0 39.2 47.5 29.9 38.1 46.3 28.7 37.0 45.2 27.5 35.7 43.9 26.2 34.4 42.6
TC 58.4 58.4 58.4 55.4 55.4 55.4 52.3 52.3 52.3 48.9 48.9 48.9 45.2 45.2 45.2
72
SHC 23.4 31.7 39.9 22.3 30.6 38.8 21.1 29.4 37.6 19.9 28.2 36.4 18.6 26.8 35.1
TC --- 62.7 62.7 --- 59.5 59.5 --- 56.1 56.1 --- 52.5 52.5 --- 48.6 48.6
78
SHC --- 25.5 34.0 --- 24.4 32.9 --- 23.2 31.7 --- 22.0 30.4 --- 20.7 29.1
TC 49.5 49.5 56.2 47.4 47.4 53.9 45.2 45.2 51.3 42.7 42.7 48.5 40.1 40.1 45.5
58
SHC 42.8 49.5 56.2 41.0 47.4 53.9 39.0 45.2 51.3 36.9 42.7 48.5 34.6 40.1 45.5
TC 49.8 49.8 58.1 47.5 47.5 56.1 45.2 45.2 53.4 42.8 42.8 50.5 40.1 40.1 47.4
62
SHC 40.4 49.2 58.1 38.8 47.5 56.1 37.0 45.2 53.4 35.0 42.8 50.5 32.8 40.1 47.4
TC 54.3 54.3 54.3 51.5 51.5 51.5 48.5 48.5 48.5 45.3 45.3 47.1 41.8 41.8 45.7
67
SHC 32.5 41.7 50.8 31.4 40.5 49.7 30.2 39.3 48.5 28.9 38.0 47.1 27.5 36.6 45.7
TC 59.4 59.4 59.4 56.3 56.3 56.3 53.1 53.1 53.1 49.6 49.6 49.6 45.8 45.8 45.8
72
SHC 24.0 33.2 42.4 22.9 32.1 41.3 21.7 30.9 40.1 20.4 29.6 38.8 19.1 28.3 37.5
TC --- 63.8 63.8 --- 60.5 60.5 --- 57.0 57.0 --- 53.2 53.2 --- 49.2 49.2
78
SHC --- 26.3 35.8 --- 25.2 34.6 --- 24.0 33.4 --- 22.8 32.1 --- 21.5 30.8
TC 51.0 51.0 58.0 48.8 48.8 55.5 46.5 46.5 52.8 43.9 43.9 49.9 41.1 41.1 46.7
58
SHC 44.1 51.0 58.0 42.2 48.8 55.5 40.2 46.5 52.8 37.9 43.9 49.9 35.5 41.1 46.7
TC 51.1 51.1 60.4 48.9 48.9 57.8 46.5 46.5 55.0 44.0 44.0 51.9 41.1 41.1 48.6
62
SHC 41.8 51.1 60.4 40.0 48.9 57.8 38.1 46.5 55.0 36.0 44.0 51.9 33.7 41.1 48.6
TC 55.1 55.1 55.1 52.1 52.1 52.9 49.1 49.1 51.6 45.8 45.8 50.2 42.3 42.3 48.7
67
SHC 33.9 44.0 54.1 32.7 42.8 52.9 31.5 41.5 51.6 30.2 40.2 50.2 28.8 38.8 48.7
TC 60.3 60.3 60.3 57.1 57.1 57.1 53.7 53.7 53.7 50.1 50.1 50.1 46.3 46.3 46.3
72
SHC 24.5 34.7 44.8 23.4 33.5 43.6 22.2 32.3 42.4 21.0 31.1 41.2 19.6 29.7 39.8
TC --- 64.6 64.6 --- 61.2 61.2 --- 57.6 57.6 --- 53.8 53.8 --- 49.7 49.7
78
SHC --- 27.1 37.5 --- 26.0 36.3 --- 24.8 35.1 --- 23.5 33.8 --- 22.2 32.4
85 95 105 115 125
EA (dB) EA (dB) EA (dB) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
AMBIENT TEMPERATURE
581J
27
TABLE 14 – COOLING CAPACITIES 1--STAGE COOLING 5 TONS
AMBIENT TEMPERATURE
581J
581J*06A
1500
CfmEA(wb)
1750
CfmEA(wb)
2000
CfmEA(wb)
2250
CfmEA(wb)
2500
CfmEA(wb)
TC 53.4 53.4 60.6 51.3 51.3 58.2 49.0 49.0 55.6 46.5 46.5 52.7 43.7 43.7 49.5
58
SHC 46.3 53.4 60.6 44.5 51.3 58.2 42.5 49.0 55.6 40.3 46.5 52.7 37.9 43.7 49.5
TC 55.6 55.6 58.2 52.9 52.9 56.9 50.0 50.0 55.5 46.9 46.9 53.9 43.8 43.8 51.6
62
SHC 42.0 50.1 58.2 40.7 48.8 56.9 39.4 47.4 55.5 37.9 45.9 53.9 36.0 43.8 51.6
TC 60.8 60.8 60.8 57.8 57.8 57.8 54.6 54.6 54.6 51.1 51.1 51.1 47.4 47.4 47.4
67
SHC 34.4 42.6 50.7 33.2 41.3 49.4 31.8 39.9 48.1 30.4 38.5 46.6 28.9 37.0 45.1
TC 66.6 66.6 66.6 63.2 63.2 63.2 59.7 59.7 59.7 55.9 55.9 55.9 51.8 51.8 51.8
72
SHC 26.7 34.8 43.0 25.4 33.6 41.7 24.1 32.2 40.4 22.6 30.8 38.9 21.1 29.3 37.4
TC --- 71.4 71.4 --- 67.9 67.9 --- 64.0 64.0 --- 59.9 59.9 --- 55.5 55.5
78
SHC --- 28.5 36.7 --- 27.2 35.5 --- 25.9 34.2 --- 24.5 32.7 --- 23.0 31.3
TC 56.3 56.3 63.8 54.0 54.0 61.2 51.5 51.5 58.3 48.7 48.7 55.2 45.7 45.7 51.8
58
SHC 48.8 56.3 63.8 46.8 54.0 61.2 44.6 51.5 58.3 42.2 48.7 55.2 39.6 45.7 51.8
TC 57.3 57.3 64.0 54.5 54.5 62.5 51.6 51.6 60.7 48.8 48.8 57.5 45.8 45.8 53.9
62
SHC 45.3 54.7 64.0 44.0 53.3 62.5 42.4 51.6 60.7 40.1 48.8 57.5 37.6 45.8 53.9
TC 62.5 62.5 62.5 59.3 59.3 59.3 55.9 55.9 55.9 52.3 52.3 52.3 48.3 48.3 49.7
67
SHC 36.6 46.0 55.4 35.3 44.7 54.1 33.9 43.3 52.7 32.4 41.8 51.3 30.9 40.3 49.7
TC 68.3 68.3 68.3 64.8 64.8 64.8 61.0 61.0 61.0 57.0 57.0 57.0 52.7 52.7 52.7
72
SHC 27.5 37.0 46.5 26.2 35.7 45.2 24.9 34.4 43.8 23.4 32.9 42.4 21.9 31.4 40.8
TC --- 73.2 73.2 --- 69.4 69.4 --- 65.4 65.4 --- 61.1 61.1 --- 56.5 56.5
78
SHC --- 29.7 39.3 --- 28.4 38.0 --- 27.1 36.7 --- 25.6 35.2 --- 24.1 33.7
TC 58.7 58.7 66.5 56.2 56.2 63.7 53.5 53.5 60.6 50.6 50.6 57.3 47.3 47.3 53.7
58
SHC 50.9 58.7 66.5 48.7 56.2 63.7 46.4 53.5 60.6 43.8 50.6 57.3 41.0 47.3 53.7
TC 58.8 58.8 69.2 56.3 56.3 66.3 53.6 53.6 63.1 50.6 50.6 59.6 47.4 47.4 55.8
62
SHC 48.3 58.8 69.2 46.3 56.3 66.3 44.0 53.6 63.1 41.6 50.6 59.6 39.0 47.4 55.8
TC 63.8 63.8 63.8 60.4 60.4 60.4 56.9 56.9 57.3 53.1 53.1 55.8 49.1 49.1 54.1
67
SHC 38.6 49.3 60.1 37.3 48.0 58.7 35.9 46.6 57.3 34.4 45.1 55.8 32.8 43.4 54.1
TC 69.6 69.6 69.6 65.9 65.9 65.9 62.1 62.1 62.1 57.9 57.9 57.9 53.5 53.5 53.5
72
SHC 28.4 39.1 49.9 27.0 37.8 48.6 25.7 36.4 47.2 24.2 35.0 45.7 22.6 33.4 44.2
TC --- 74.5 74.5 --- 70.6 70.6 --- 66.5 66.5 --- 62.0 62.0 --- --- ---
78
SHC --- 30.8 41.8 --- 29.5 40.4 --- 28.2 39.0 --- 26.7 37.6 --- --- ---
TC 60.7 60.7 68.8 58.1 58.1 65.8 55.2 55.2 62.6 52.1 52.1 59.1 48.7 48.7 55.2
58
SHC 52.6 60.7 68.8 50.3 58.1 65.8 47.9 55.2 62.6 45.2 52.1 59.1 42.2 48.7 55.2
TC 60.8 60.8 71.6 58.1 58.1 68.5 55.3 55.3 65.1 52.2 52.2 61.4 48.7 48.7 57.4
62
SHC 50.0 60.8 71.6 47.8 58.1 68.5 45.4 55.3 65.1 42.9 52.2 61.4 40.1 48.7 57.4
TC 64.7 64.7 64.7 61.3 61.3 63.2 57.7 57.7 61.7 53.8 53.8 60.1 49.7 49.7 58.3
67
SHC 40.6 52.6 64.5 39.2 51.2 63.2 37.8 49.7 61.7 36.2 48.2 60.1 34.6 46.5 58.3
TC 70.6 70.6 70.6 66.8 66.8 66.8 62.8 62.8 62.8 58.6 58.6 58.6 54.0 54.0 54.0
72
SHC 29.1 41.2 53.3 27.8 39.9 51.9 26.4 38.4 50.5 24.9 37.0 49.0 23.3 35.4 47.4
TC --- 75.6 75.6 --- 71.6 71.6 --- 67.3 67.3 --- --- --- --- --- ---
78
SHC --- 31.9 44.1 --- 30.6 42.8 --- 29.2 41.4 --- --- --- --- --- ---
TC 62.5 62.5 70.8 59.7 59.7 67.6 56.7 56.7 64.2 53.4 53.4 60.5 49.9 49.9 56.5
58
SHC 54.1 62.5 70.8 51.7 59.7 67.6 49.1 56.7 64.2 46.3 53.4 60.5 43.2 49.9 56.5
TC 62.5 62.5 73.6 59.7 59.7 70.3 56.7 56.7 66.8 53.5 53.5 63.0 49.9 49.9 58.8
62
SHC 51.4 62.5 73.6 49.1 59.7 70.3 46.6 56.7 66.8 43.9 53.5 63.0 41.0 49.9 58.8
TC 65.5 65.5 68.9 62.0 62.0 67.4 58.3 58.3 65.9 54.4 54.4 64.2 50.2 50.2 62.2
67
SHC 42.5 55.7 68.9 41.1 54.3 67.4 39.6 52.7 65.9 38.0 51.1 64.2 36.3 49.2 62.2
TC 71.4 71.4 71.4 67.5 67.5 67.5 63.4 63.4 63.4 59.1 59.1 59.1 54.4 54.4 54.4
72
SHC 29.9 43.2 56.5 28.5 41.8 55.2 27.1 40.4 53.7 25.6 38.9 52.2 24.0 37.3 50.6
TC --- 76.4 76.4 --- 72.3 72.3 --- --- --- --- --- --- --- --- ---
78
SHC --- 33.0 46.4 --- 31.6 45.1 --- --- --- --- --- --- --- --- ---
EA (dB) EA (dB) EA ( d B) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
85 95 105 115 125
28
TABLE 15 – COOLING CAPACITIES 1--STAGE COOLING 6 TONS
581J*07A
1800
CfmEA(wb)
2100
CfmEA(wb)
2400
CfmEA(wb)
2700
CfmEA(wb)
3000
CfmEA(wb)
THC 64.1 64.1 72.5 61.8 61.8 69.9 59.2 59.2 67 56.3 56.3 63.7 53.2 53.2 60.2
58
SHC 55.7 64.1 72.5 53.7 61.8 69.9 51.4 59.2 67 48.9 56.3 63.7 46.2 53.2 60.2
THC 67.9 67.9 68.5 64.9 64.9 67 61.5 61.5 65.3 57.9 57.9 63.5 54 54 61.4
62
SHC 50.2 59.4 68.5 48.8 57.9 67 47.1 56.2 65.3 45.4 54.4 63.5 43.4 52.4 61.4
THC 74.8 74.8 74.8 71.5 71.5 71.5 67.8 67.8 67.8 63.8 63.8 63.8 59.5 59.5 59.5
67
SHC 41.8 50.9 60.1 40.3 49.5 58.7 38.8 47.9 57.1 37.1 46.2 55.4 35.3 44.4 53.6
THC 82.2 82.2 82.2 78.7 78.7 78.7 74.7 74.7 74.7 70.4 70.4 70.4 65.6 65.6 65.6
72
SHC 33 42.3 51.6 31.6 40.9 50.2 30.1 39.3 48.6 28.4 37.7 46.9 26.7 35.9 45.1
THC --- 88.7 88.7 --- 84.8 84.8 --- 80.6 80.6 --- 76 76 --- 70.9 70.9
78
SHC --- 35.3 45.2 --- 33.9 43.7 --- 32.4 42 --- 30.7 40.3 --- 28.9 38.5
THC 67.6 67.6 76.5 65.1 65.1 73.7 62.3 62.3 70.5 59.3 59.3 67.1 55.9 55.9 63.2
58
SHC 58.7 67.6 76.5 56.6 65.1 73.7 54.1 62.3 70.5 51.5 59.3 67.1 48.5 55.9 63.2
THC 70.1 70.1 74.9 67 67 73.2 63.5 63.5 71.3 59.7 59.7 69.1 56 56 65.8
62
SHC 53.9 64.4 74.9 52.4 62.8 73.2 50.6 61 71.3 48.7 58.9 69.1 46.2 56 65.8
THC 77.1 77.1 77.1 73.6 73.6 73.6 69.7 69.7 69.7 65.5 65.5 65.5 60.9 60.9 60.9
67
SHC 44.2 54.8 65.3 42.7 53.3 63.9 41.2 51.7 62.3 39.4 50 60.5 37.6 48.1 58.6
THC 84.7 84.7 84.7 80.9 80.9 80.9 76.8 76.8 76.8 72.2 72.2 72.2 67.2 67.2 67.2
72
SHC 34.2 44.8 55.5 32.7 43.4 54 31.1 41.8 52.4 29.5 40.1 50.7 27.6 38.2 48.8
THC --- 91.3 91.3 --- 87.2 87.2 --- 82.7 82.7 --- 77.8 77.8 --- 72.5 72.5
76
SHC --- 36.7 47.8 --- 35.3 46.3 --- 33.7 44.7 --- 32 43 --- 30.2 41.1
THC 70.6 70.6 79.9 68 68 76.9 65 65 73.5 61.7 61.7 69.8 58.1 58.1 65.8
58
SHC 61.3 70.6 79.9 59 68 76.9 56.4 65 73.5 53.6 61.7 69.8 50.5 58.1 65.8
THC 72 72 80.6 68.7 68.7 78.7 65.2 65.2 76.6 61.8 61.8 72.6 58.2 58.2 68.4
62
SHC 57.3 69 80.6 55.6 67.2 78.7 53.7 65.2 76.6 50.9 61.8 72.6 48 58.2 68.4
THC 78.9 78.9 78.9 75.2 75.2 75.2 71.2 71.2 71.2 66.8 66.8 66.8 62 62 63.4
67
SHC 46.5 58.4 70.3 45 56.9 68.8 43.4 55.3 67.2 41.6 53.5 65.4 39.7 51.6 63.4
THC 86.6 86.6 86.6 82.7 82.7 82.7 78.3 78.3 78.3 73.6 73.6 73.6 68.4 68.4 68.4
72
SHC 35.2 47.2 59.2 33.7 45.7 57.7 32.1 44.1 56 30.4 42.3 54.3 28.5 40.5 52.4
THC --- 93.3 93.3 --- 89 89 --- 84.4 84.4 --- 79.3 79.3 --- 73.7 73.7
78
SHC --- 38 50.4 --- 36.6 48.9 --- 35 47.3 --- 33.3 45.5 --- 31.4 43.6
THC 73.2 73.2 82.8 70.4 70.4 79.6 67.3 67.3 76.1 63.8 63.8 72.2 60 60 67.9
58
SHC 63.6 73.2 82.8 61.1 70.4 79.6 58.4 67.3 76.1 55.4 63.8 72.2 52.1 60 67.9
THC 73.7 73.7 85.5 70.5 70.5 82.8 67.3 67.3 79.1 63.9 63.9 75.1 60.1 60.1 70.6
62
SHC 60.2 72.9 85.5 58.1 70.5 82.8 55.5 67.3 79.1 52.7 63.9 75.1 49.5 60.1 70.6
THC 80.3 80.3 80.3 76.5 76.5 76.5 72.4 72.4 72.4 67.8 67.8 70 62.9 62.9 67.9
67
SHC 48.7 61.9 75.1 47.1 60.4 73.6 45.5 58.7 71.9 43.7 56.8 70 41.7 54.8 67.9
THC 88.2 88.2 88.2 84 84 84 79.6 79.6 79.6 74.6 74.6 74.6 69.3 69.3 69.3
72
SHC 36.1 49.4 62.7 34.6 47.9 61.2 33 46.2 59.5 31.2 44.5 57.7 29.3 42.6 55.8
THC --- 94.9 94.9 --- 90.4 90.4 --- 85.6 85.6 --- 80.4 80.4 --- 74.7 74.7
78
SHC --- 39.2 52.9 --- 37.7 51.4 --- 36.1 49.7 --- 34.4 47.9 --- 32.5 46
THC 75.4 75.4 85.3 72.5 72.5 82 69.2 69.2 78.3 65.6 65.6 74.2 61.7 61.7 69.8
58
SHC 65.5 75.4 85.3 62.9 72.5 82 60.1 69.2 78.3 57 65.6 74.2 53.5 61.7 69.8
THC 75.5 75.5 88.7 72.5 72.5 85.3 69.3 69.3 81.4 65.7 65.7 77.2 61.7 61.7 72.5
62
SHC 62.2 75.5 88.7 59.8 72.5 85.3 57.1 69.3 81.4 54.1 65.7 77.2 50.9 61.7 72.5
THC 81.4 81.4 81.4 77.5 77.5 78.1 73.3 73.3 76.4 68.7 68.7 74.4 63.7 63.7 72.2
67
SHC 50.7 65.2 79.7 49.2 63.7 78.1 47.5 61.9 76.4 45.6 60 74.4 43.6 57.9 72.2
THC 89.4 89.4 89.4 85.2 85.2 85.2 80.5 80.5 80.5 75.5 75.5 75.5 70.1 70.1 70.1
72
SHC 36.9 51.5 66.1 35.4 50 64.6 33.8 48.3 62.9 32 46.5 61.1 30.1 44.6 59.1
THC --- 96.1 96.1 --- 91.6 91.6 --- 86.7 86.7 --- 81.3 81.3 --- 75.5 75.5
78
SHC --- 40.4 55.3 --- 38.9 53.8 --- 37.2 52.1 --- 35.5 50.3 --- 33.6 48.3
85 95 105 115 125
EA (dB) EA (dB) EA ( d B) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
AMBIENT TEMPERATURE
581J
29
TABLE 16 – COOLING CAPACITIES 2--STAGE COOLING 7.5 TONS
85 95 105 115 125
EA (dB) EA (dB) EA (dB) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
581J
581J*08D
2250
CfmEA(wb)
2625
CfmEA(wb)
3000
CfmEA(wb)
3375
CfmEA(wb)
3750
CfmEA(wb)
THC 81 81 91.8 77.9 77.9 88.4 74.7 74.7 84.6 71.1 71.1 80.6 67.3 67.3 76.3
58
SHC 70.2 81 91.8 67.5 77.9 88.4 64.7 74.7 84.6 61.6 71.1 80.6 58.3 67.3 76.3
THC 85.1 85.1 87.2 81.1 81.1 85.3 76.9 76.9 83.2 72.5 72.5 81 67.8 67.8 78.5
62
SHC 63.3 75.3 87.2 61.4 73.4 85.3 59.5 71.3 83.2 57.3 69.2 81 55 66.7 78.5
THC 93.3 93.3 93.3 89 89 89 84.3 84.3 84.3 79.4 79.4 79.4 74.1 74.1 74.1
67
SHC 52.3 64.2 76.2 50.4 62.4 74.4 48.4 60.4 72.4 46.4 58.3 70.3 44.2 56.2 68.1
THC 102.3 102.3 102.3 97.5 97.5 97.5 92.5 92.5 92.5 87.1 87.1 87.1 81.3 81.3 81.3
72
SHC 40.9 53 65 39 51.1 63.1 37.1 49.2 61.2 35.1 47.1 59.1 32.9 44.9 57
THC --- 110 110 --- 104.8 104.8 --- 99.4 99.4 --- 93.5 93.5 --- 87.3 87.3
76
SHC --- 43.7 56.1 --- 41.9 54.2 --- 39.9 52.2 --- 37.9 50.2 --- 35.8 48
THC 85.4 85.4 96.9 82.1 82.1 93.1 78.6 78.6 89.1 74.7 74.7 84.7 70.5 70.5 80
58
SHC 74 85.4 96.9 71.2 82.1 93.1 68.1 78.6 89.1 64.7 74.7 84.7 61.1 70.5 80
THC 87.8 87.8 95.7 83.7 83.7 93.6 79.3 79.3 91.3 75 75 87.8 70.6 70.6 83.2
62
SHC 68.2 82 95.7 66.2 79.9 93.6 64.1 77.7 91.3 61.3 74.6 87.8 58 70.6 83.2
THC 96 96 96 91.4 91.4 91.4 86.5 86.5 86.5 81.3 81.3 81.3 75.8 75.8 75.8
67
SHC 55.4 69.3 83.2 53.5 67.4 81.2 51.5 65.4 79.2 49.4 63.2 77.1 47.2 61 74.8
THC 105.2 105.2 105.2 100.1 100.1 100.1 94.8 94.8 94.8 89.1 89.1 89.1 83 83 83
72
SHC 42.3 56.2 70.2 40.4 54.3 68.2 38.4 52.3 66.2 36.3 50.2 64.1 34.1 48 61.9
THC --- 112.9 112.9 --- 107.5 107.5 --- 101.7 101.7 --- 95.6 95.6 --- 89.1 89.1
76
SHC --- 45.5 59.8 --- 43.6 57.8 --- 41.7 55.8 --- 39.6 53.7 --- 37.4 51.5
THC 89.2 89.2 101.1 85.6 85.6 97.1 81.8 81.8 92.8 77.7 77.7 88.1 73.2 73.2 83
58
SHC 77.3 89.2 101.1 74.2 85.6 97.1 70.9 81.8 92.8 67.3 77.7 88.1 63.5 73.2 83
THC 90.1 90.1 103.5 86.1 86.1 100.3 81.9 81.9 96.5 77.8 77.8 91.6 73.3 73.3 86.4
62
SHC 72.7 88.1 103.5 70.1 85.2 100.3 67.3 81.9 96.5 63.9 77.8 91.6 60.2 73.3 86.4
THC 98.1 98.1 98.1 93.3 93.3 93.3 88.2 88.2 88.2 82.8 82.8 83.6 77 77 81.3
67
SHC 58.4 74.1 89.9 56.5 72.2 87.9 54.4 70.1 85.8 52.3 67.9 83.6 50 65.6 81.3
THC 107.3 107.3 107.3 102.1 102.1 102.1 96.5 96.5 96.5 90.6 90.6 90.6 84.3 84.3 84.3
72
SHC 43.5 59.3 75.1 41.6 57.3 73.1 39.5 55.3 71.1 37.4 53.2 69 35.2 50.9 66.7
THC --- 115.2 115.2 --- 109.5 109.5 --- 103.5 103.5 --- 97.2 97.2 --- 90.4 90.4
76
SHC --- 47.2 63.2 --- 45.3 61.3 --- 43.3 59.3 --- 41.2 57.1 --- 38.9 54.8
THC 92.4 92.4 104.7 88.6 88.6 100.4 84.6 84.6 95.9 80.2 80.2 90.9 75.5 75.5 85.6
58
SHC 80 92.4 104.7 76.8 88.6 100.4 73.3 84.6 95.9 69.5 80.2 90.9 65.4 75.5 85.6
THC 92.5 92.5 109 88.7 88.7 104.5 84.6 84.6 99.7 80.3 80.3 94.6 75.6 75.6 89
62
SHC 76 92.5 109 72.9 88.7 104.5 69.6 84.6 99.7 66 80.3 94.6 62.1 75.6 89
THC 99.7 99.7 99.7 94.8 94.8 94.8 89.5 89.5 92.2 84 84 89.9 78 78 87.4
67
SHC 61.3 78.8 96.4 59.3 76.8 94.3 57.2 74.7 92.2 55 72.4 89.9 52.6 70 87.4
THC 109 109 109 103.6 103.6 103.6 97.8 97.8 97.8 91.8 91.8 91.8 85.3 85.3 85.3
72
SHC 44.6 62.2 79.9 42.7 60.3 77.9 40.6 58.2 75.8 38.5 56.1 73.6 36.2 53.8 71.3
THC --- 116.9 116.9 --- 111.1 111.1 --- 104.9 104.9 --- 98.4 98.4 --- 91.5 91.5
76
SHC --- 48.8 66.6 --- 46.8 64.6 --- 44.8 62.6 --- 42.7 60.4 --- 40.4 58.1
THC 95.1 95.1 107.8 91.2 91.2 103.3 86.9 86.9 98.5 82.3 82.3 93.3 77.4 77.4 87.8
58
SHC 82.4 95.1 107.8 79 91.2 103.3 75.3 86.9 98.5 71.3 82.3 93.3 67.1 77.4 87.8
THC 95.2 95.2 112.2 91.2 91.2 107.5 87 87 102.5 82.4 82.4 97.1 77.5 77.5 91.3
62
SHC 78.2 95.2 112.2 75 91.2 107.5 71.5 87 102.5 67.7 82.4 97.1 63.7 77.5 91.3
THC 101.1 101.1 102.6 96 96 100.5 90.6 90.6 98.3 84.9 84.9 95.9 78.9 78.9 93.2
67
SHC 64 83.3 102.6 62 81.2 100.5 59.8 79.1 98.3 57.6 76.7 95.9 55.1 74.2 93.2
THC 110.4 110.4 110.4 104.8 104.8 104.8 98.9 98.9 98.9 92.7 92.7 92.7 86.1 86.1 86.1
72
SHC 45.7 65.1 84.5 43.7 63.1 82.5 41.7 61 80.4 39.5 58.8 78.2 37.2 56.5 75.9
THC --- 118.3 118.3 --- 112.4 112.4 --- 106 106 --- 99.4 99.4 --- 92.3 92.3
76
SHC --- 50.3 69.9 --- 48.3 67.9 --- 46.2 65.8 --- 44.1 63.6 --- 41.8 61.3
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
AMBIENT TEMPERATURE
30
TABLE 17 – COOLING CAPACITIES 2--STAGE COOLING 8.5 TONS
581J*09D
2550
CfmEA(wb)
2975
CfmEA(wb)
3400
CfmEA(wb)
3825
CfmEA(wb)
4250
CfmEA(wb)
THC 90.5 90.5 102.4 87 87 98.5 83.2 83.2 94.2 79.1 79.1 89.6 74.7 74.7 84.6
58
SHC 78.6 90.5 102.4 75.5 87 98.5 72.2 83.2 94.2 68.7 79.1 89.6 64.8 74.7 84.6
THC 94.8 94.8 98.1 90.2 90.2 95.8 85.4 85.4 93.4 80.3 80.3 90.8 74.9 74.9 87.8
62
SHC 71.2 84.6 98.1 69.1 82.4 95.8 66.8 80.1 93.4 64.3 77.5 90.8 61.6 74.7 87.8
THC 104 104 104 99 99 99 93.7 93.7 93.7 88 88 88 81.9 81.9 81.9
67
SHC 58.7 72.2 85.7 56.6 70 83.5 54.3 67.8 81.3 52 65.4 78.9 49.5 62.9 76.4
THC 114 114 114 108.5 108.5 108.5 102.7 102.7 102.7 96.5 96.5 96.5 89.8 89.8 89.8
72
SHC 45.8 59.3 72.9 43.7 57.2 70.8 41.4 55 68.5 39.1 52.7 66.2 36.7 50.2 63.7
THC --- 122.4 122.4 --- 116.5 116.5 --- 110.3 110.3 --- 103.7 103.7 --- 96.5 96.5
76
SHC --- 48.8 62.8 --- 46.7 60.6 --- 44.5 58.4 --- 42.2 56 --- 39.8 53.5
THC 95.4 95.4 108 91.6 91.6 103.7 87.5 87.5 99 83.1 83.1 94 78.3 78.3 88.6
58
SHC 82.8 95.4 108 79.5 91.6 103.7 75.9 87.5 99 72.1 83.1 94 68 78.3 88.6
THC 97.7 97.7 107.4 93 93 104.9 88.1 88.1 102.1 83.2 83.2 97.9 78.4 78.4 92.2
62
SHC 76.7 92 107.4 74.3 89.6 104.9 71.8 86.9 102.1 68.6 83.2 97.9 64.6 78.4 92.2
THC 106.9 106.9 106.9 101.6 101.6 101.6 96 96 96 90.1 90.1 90.1 83.7 83.7 83.9
67
SHC 62.3 77.8 93.4 60.1 75.6 91.2 57.8 73.3 88.9 55.4 70.9 86.5 52.8 68.3 83.9
THC 117 117 117 111.2 111.2 111.2 105.1 105.1 105.1 98.6 98.6 98.6 91.7 91.7 91.7
72
SHC 47.3 62.9 78.6 45.1 60.8 76.4 42.9 58.5 74.1 40.5 56.1 71.7 38 53.6 69.2
THC --- 125.6 125.6 --- 119.4 119.4 --- 112.8 112.8 --- 105.9 105.9 --- 98.4 98.4
76
SHC --- 50.8 66.8 --- 48.7 64.6 --- 46.4 62.3 --- 44.1 59.9 --- 41.6 57.4
THC 99.5 99.5 112.7 95.4 95.4 108 91 91 103 86.3 86.3 97.7 81.2 81.2 91.9
58
SHC 86.4 99.5 112.7 82.8 95.4 108 79 91 103 74.9 86.3 97.7 70.5 81.2 91.9
THC 100.3 100.3 115.8 95.6 95.6 112.4 91.2 91.2 107.2 86.4 86.4 101.6 81.3 81.3 95.6
62
SHC 81.5 98.6 115.8 78.7 95.6 112.4 75.1 91.2 107.2 71.2 86.4 101.6 67 81.3 95.6
THC 109.1 109.1 109.1 103.6 103.6 103.6 97.8 97.8 97.8 91.6 91.6 93.7 85 85 90.9
67
SHC 65.6 83.2 100.8 63.4 81 98.6 61 78.6 96.2 58.6 76.1 93.7 55.9 73.4 90.9
THC 119.3 119.3 119.3 113.3 113.3 113.3 107 107 107 100.3 100.3 100.3 93 93 93
72
SHC 48.7 66.4 84.1 46.5 64.2 81.8 44.2 61.8 79.5 41.8 59.4 77.1 39.2 56.9 74.5
THC --- 128 128 --- 121.5 121.5 --- 114.7 114.7 --- 107.5 107.5 --- 99.8 99.8
76
SHC --- 52.6 70.6 --- 50.5 68.4 --- 48.2 66.1 --- 45.8 63.6 --- 43.3 61.1
THC 103 103 116.6 98.7 98.7 111.7 94 94 106.4 89 89 100.8 83.6 83.6 94.7
58
SHC 89.4 103 116.6 85.6 98.7 111.7 81.6 94 106.4 77.3 89 100.8 72.6 83.6 94.7
THC 103.1 103.1 121.3 98.8 98.8 116.1 94.1 94.1 110.7 89.1 89.1 104.8 83.7 83.7 98.4
62
SHC 85 103.1 121.3 81.4 98.8 116.1 77.5 94.1 110.7 73.4 89.1 104.8 69 83.7 98.4
THC 110.9 110.9 110.9 105.2 105.2 105.7 99.2 99.2 103.2 92.9 92.9 100.5 86.1 86.1 97.6
67
SHC 68.8 88.4 108 66.5 86.1 105.7 64.1 83.7 103.2 61.6 81.1 100.5 58.9 78.3 97.6
THC 121.2 121.2 121.2 114.9 114.9 114.9 108.4 108.4 108.4 101.5 101.5 101.5 94.1 94.1 94.1
72
SHC 50 69.7 89.4 47.7 67.4 87.1 45.4 65.1 84.7 43 62.6 82.3 40.4 60 79.6
THC --- 129.8 129.8 --- 123.2 123.2 --- 116.2 116.2 --- 108.8 108.8 --- 100.9 100.9
76
SHC --- 54.4 74.3 --- 52.2 72.1 --- 49.9 69.7 --- 47.5 67.3 --- 44.9 64.7
THC 106 106 119.9 101.4 101.4 114.8 96.6 96.6 109.3 91.3 91.3 103.4 85.7 85.7 97
58
SHC 92 106 119.9 88 101.4 114.8 83.8 96.6 109.3 79.3 91.3 103.4 74.4 85.7 97
THC 106.1 106.1 124.7 101.5 101.5 119.4 96.6 96.6 113.6 91.4 91.4 107.5 85.7 85.7 100.8
62
SHC 87.4 106.1 124.7 83.6 101.5 119.4 79.6 96.6 113.6 75.3 91.4 107.5 70.6 85.7 100.8
THC 112.3 112.3 114.9 106.5 106.5 112.5 100.4 100.4 109.9 93.9 93.9 107 87.1 87.1 103.8
67
SHC 71.8 93.4 114.9 69.5 91 112.5 67 88.5 109.9 64.4 85.7 107 61.6 82.7 103.8
THC 122.6 122.6 122.6 116.2 116.2 116.2 109.5 109.5 109.5 102.5 102.5 102.5 94.9 94.9 94.9
72
SHC 51.2 72.8 94.5 48.9 70.5 92.2 46.6 68.2 89.8 44.1 65.7 87.3 41.5 63.1 84.6
THC --- 131.3 131.3 --- 124.5 124.5 --- 117.4 117.4 --- 109.8 109.8 --- 101.8 101.8
76
SHC --- 56 77.9 --- 53.8 75.6 --- 51.5 73.3 --- 49.1 70.8 --- 46.5 68.1
85 95 105 115 125
EA (dB) EA (dB) EA (dB) EA (dB) EA (dB)
75 80 85 75 80 85 75 80 85 75 80 85 75 80 85
LEGEND:
--- --- D o n o t o p e r a t e Cfm --- Cubic feet per minute (supply air) EAT(db) --- Entering air temperature (dry bulb) EAT(wb) --- Entering air temperature (wet bulb) SHC --- Sensible heat capacity TC --- Total capacity
AMBIENT TEMPERATURE
581J
31
TABLE 18 – STATIC PRESSURE ADDERS (FACTORY OPTIONS AND/OR ACCESSORIES)
Economizer
3 --- 5 T O N S
CFM (in. wg) 600 800 1000 1250 1500 1750 2000 2250 2500 2750 3000 Vertical
Economizer Horizontal
Economizer
CFM (in. wg) 1800 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 5500 5750 6000 Vertical
Economizer Horizontal
Economizer
0.01 0.02 0.04 0.05 0.07 0.09 0.12 0.15 0.18 0.22 0.26
0.02 0.03 0.04 0.06 0.08 0.10 0.13 0.15 0.18 0.23 0.28
6 --- 8 . 5 T O N S
0.04 0.05 0.06 0.08 0.09 0.12 0.13 0.15 0.17 0.20 0.22 0.25 0.29 0.33 0.36 0.40 0.44 0.48
0.07 0.07 0.08 0.10 0.13 0.15 0.18 0.21 0.25 0.28 0.30 0.34 0.39 0.43 0.47 0.51 0.56 0.60
581J
General fan performance notes:
1. Interpolation is permissible. Do not extrapolate.
2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static pressure caused by any FIOPs or accessories.
3. Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories may add static pressure losses, as shown in Table 24. Selection software is available, through your salesperson, to help you select the best motor/drive combination for your application.
4. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would work, Bryant recommended the lower horsepower option.
5. For information on the electrical properties of Bryant motors, please see the Electrical information section of this book.
6. For more information on the performance limits of Bryant motors, see the application data section of this book.
7. The EPACT (Energy Policy Act of 1992) regulates energy requirements for specific types of indoor fan motors. Motors regulated by EPACT include any general purpose, T--frame (three--digit, 143 and larger), single--speed, foot mounted, polyphase, squirrel cage induction motors of NEMA (National Electrical Manufacturers Association) design A and B, manufactured for use in the United States. Ranging from 1 to 200 Hp, these continuous--duty motors operate on 230 and 460 volt, 60 Hz power. If a motor does not fit into these specifications, the motor does not have to be replaced by an EPACT compliant energy--efficient motor. Variable--speed motors are exempt from EPACT compliance require­ments. Therefore, the indoor fan motors for Bryant 581J04--09 units are exempt from these requirements.
32
581J
FAN PERFORMANCE (BELT DRIVE)
Available External Static Pressure (in. wg)
Available External Static Pressure (in. wg)
TABLE 20 – 581J*04----3 PHASE----3 TON VERTICAL SUPPLY
TABLE 19 – 581J*04----3 PHASE----3 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
900 582 0.14 715 0.24 825 0.35 921 0.48 1007 0.63 1086 0.79 1159 0.96 1228 1.14 1293 1.33 1354 1.53
975 606 0.16 735 0.26 843 0.38 938 0.51 1023 0.66 1101 0.82 1174 0.99 1242 1.18 1306 1.37 1367 1.57
1050 630 0.18 756 0.29 862 0.41 955 0.55 1040 0.70 1117 0.86 1189 1.03 1256 1.22 1320 1.41 1381 1.62
1125 655 0.21 778 0.32 882 0.45 974 0.58 1057 0.74 1133 0.90 1204 1.08 1271 1.26 1335 1.46 1395 1.67
1200 681 0.24 800 0.35 902 0.48 992 0.63 1074 0.78 1150 0.95 1221 1.13 1287 1.31 1350 1.51 1410 1.72
1275 708 0.27 823 0.39 923 0.53 1012 0.67 1093 0.83 1168 1.00 1237 1.18 1303 1.37 1365 1.57 1425 1.78
1350 735 0.31 847 0.43 945 0.57 1032 0.72 1112 0.88 1186 1.05 1255 1.24 1320 1.43 1382 1.63 1441 1.84
1425 762 0.35 871 0.48 967 0.62 1053 0.77 1131 0.94 1204 1.11 1272 1.30 1337 1.49 1398 1.70 1457 1.91
CFM
1500 790 0.40 896 0.53 990 0.67 1074 0.83 1151 1.00 1223 1.18 1291 1.36 1355 1.56 1415 1.77 1473 1.99
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 770--- 1175 RPM, 1.2 BHP max
* High static 1035 --- 1466 RPM, 2.4 BHP max
900 592 0.14 721 0.25 826 0.38 916 0.53 997 0.69 1070 0.88 1137 1.07 1201 1.29 1260 1.51 1317 1.75
975 616 0.17 744 0.28 847 0.41 936 0.56 1016 0.72 1089 0.91 1156 1.11 1219 1.32 1279 1.54 1335 1.78
1050 641 0.19 766 0.30 868 0.44 957 0.59 1036 0.76 1108 0.94 1175 1.14 1238 1.36 1297 1.58 1353 1.82
1125 667 0.22 790 0.33 890 0.47 978 0.63 1056 0.80 1128 0.98 1195 1.18 1257 1.40 1316 1.62 1372 1.86
1200 693 0.25 813 0.37 913 0.51 999 0.67 1077 0.84 1148 1.03 1214 1.23 1276 1.44 1335 1.67 1391 1.91
1275 720 0.29 837 0.41 935 0.55 1021 0.71 1098 0.88 1169 1.07 1235 1.28 1296 1.50 1354 1.72 1410 1.97
1350 747 0.33 862 0.45 958 0.60 1043 0.76 1119 0.94 1190 1.13 1255 1.33 1316 1.55 1374 1.78 1429 2.03
1425 775 0.37 887 0.50 982 0.65 1066 0.81 1141 0.99 1211 1.19 1276 1.39 1337 1.61 1394 1.85 1449 2.09
CFM
1500 802 0.42 912 0.55 1006 0.70 1088 0.87 1163 1.05 1232 1.25 1297 1.46 1357 1.68 1415 1.91 1469 2.16
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 770--- 1175 RPM,, 1.2 BHP max
* High static 1035 --- 1466 RPM, 2.4 BHP max
33
581J
Available External Static Pressure (in. wg)
FAN PERFORMANCE (BELT DRIVE) (cont.)
TABLE 21 – 581J*05----3 PHASE----4 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Available External Static Pressure (in. wg)
TABLE 22 – 581J*05----3 PHASE----4 TON VERTICAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1200 681 0.24 800 0.35 902 0.48 992 0.63 1074 0.78 1150 0.95 1221 1.13 1287 1.31 1350 1.51 1410 1.72
1300 717 0.29 831 0.41 930 0.54 1019 0.69 1099 0.85 1173 1.02 1243 1.20 1309 1.39 1371 1.59 1430 1.80
1400 753 0.34 863 0.46 959 0.60 1046 0.75 1125 0.92 1198 1.09 1266 1.28 1331 1.47 1393 1.68 1451 1.89
1500 790 0.40 896 0.53 990 0.67 1074 0.83 1151 1.00 1223 1.18 1291 1.36 1355 1.56 1415 1.77 1473 1.99
1600 828 0.46 930 0.60 1021 0.75 1103 0.91 1179 1.09 1249 1.27 1316 1.46 1379 1.66 1439 1.87 1496 2.09
1700 866 0.54 964 0.68 1053 0.84 1133 1.01 1207 1.18 1277 1.37 1342 1.57 1404 1.77 1463 1.99 1520 2.21
1800 905 0.62 1000 0.77 1085 0.94 1164 1.11 1236 1.29 1305 1.48 1369 1.68 1430 1.89 1489 2.11 1545 2.34
1900 944 0.71 1036 0.87 1119 1.04 1195 1.22 1266 1.41 1333 1.60 1397 1.81 1457 2.02 1514 2.25 1570 2.48
CFM
2000 984 0.82 1072 0.98 1153 1.15 1227 1.34 1297 1.53 1363 1.73 1425 1.94 1484 2.16 1541 2.39 1596 2.63
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 920--- 1303 RPM, 1.7 BHP max
* High static 1208 --- 1639 RPM, 2.9 BHP max
1200 693 0.25 813 0.37 913 0.51 999 0.67 1077 0.84 1148 1.03 1214 1.23 1276 1.44 1335 1.67 1391 1.91
1300 729 0.30 846 0.42 943 0.57 1028 0.73 1105 0.90 1176 1.09 1241 1.30 1303 1.51 1361 1.74 1416 1.98
1400 765 0.35 879 0.48 974 0.63 1058 0.79 1134 0.97 1204 1.17 1269 1.37 1330 1.59 1388 1.82 1442 2.07
1500 802 0.42 912 0.55 1006 0.70 1088 0.87 1163 1.05 1232 1.25 1297 1.46 1357 1.68 1415 1.91 1469 2.16
1600 840 0.49 947 0.63 1038 0.78 1119 0.95 1193 1.14 1262 1.34 1325 1.55 1385 1.78 1442 2.01 1496 2.26
1700 878 0.57 982 0.71 1071 0.87 1151 1.05 1224 1.24 1291 1.44 1354 1.66 1414 1.89 1470 2.12 1524 2.37
1800 917 0.65 1017 0.81 1105 0.97 1183 1.15 1255 1.35 1322 1.55 1384 1.77 1443 2.00 1499 2.25 1552 2.50
1900 956 0.75 1053 0.91 1139 1.08 1216 1.27 1287 1.47 1352 1.68 1414 1.90 1472 2.13 1528 2.38 1580 2.63
CFM
2000 995 0.86 1090 1.02 1173 1.20 1249 1.39 1319 1.59 1384 1.81 1445 2.04 1502 2.27 1557 2.52 1609 2.78
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 920--- 1303 RPM, 1.7 BHP max
* High static 1208 --- 1639 RPM, 2.9 BHP max
34
581J
Available External Static Pressure (in. wg)
FAN PERFORMANCE BELT DRIVE (cont.)
TABLE 23 – 581J*06----3 PHASE----5 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
Available External Static Pressure (in. wg)
TABLE 24 – 581J*06----3 PHASE----5 TON VERTICAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1500 798 0.41 906 0.55 1002 0.71 1088 0.87 1167 1.05 1241 1.23 1310 1.42 1375 1.63 1438 1.84 1497 2.06
1625 845 0.50 949 0.65 1041 0.81 1125 0.98 1202 1.17 1274 1.36 1342 1.56 1406 1.77 1467 1.98 1526 2.21
1750 893 0.60 993 0.76 1081 0.93 1163 1.11 1238 1.30 1308 1.50 1375 1.70 1438 1.92 1498 2.14 1555 2.37
1875 942 0.71 1037 0.88 1123 1.06 1202 1.25 1275 1.44 1344 1.65 1409 1.86 1471 2.09 1530 2.32 1586 2.55
2000 992 0.84 1083 1.02 1166 1.21 1242 1.40 1313 1.61 1380 1.82 1444 2.04 1505 2.27 1563 2.51 1619 2.75
2125 1043 0.98 1129 1.17 1209 1.37 1283 1.57 1353 1.79 1418 2.01 1481 2.24 1540 2.47 1597 2.72 1652 2.97
2250 1093 1.14 1177 1.34 1254 1.55 1325 1.76 1393 1.98 1457 2.21 1518 2.45 1576 2.69 1632 2.94 1686 3.20
2375 1145 1.32 1225 1.53 1299 1.74 1369 1.97 1434 2.20 1497 2.43 1556 2.68 1614 2.93 1669 3.19 --- ---
CFM
2500 1196 1.51 1273 1.73 1345 1.96 1413 2.19 1477 2.43 1538 2.68 1596 2.93 1652 3.19 --- --- --- ---
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 1035--- 1466 RPM, 2.4 BHP
* High static 1303 --- 1687 RPM, 2.9 BHP max
1500 847 0.41 966 0.55 1067 0.68 1158 0.81 1240 0.93 1316 1.05 1387 1.17 1454 1.28 1517 1.39 1578 1.50
1625 896 0.50 1010 0.65 1109 0.79 1198 0.93 1278 1.07 1353 1.20 1423 1.33 1489 1.46 1552 1.58 1611 1.70
1750 947 0.59 1056 0.76 1152 0.92 1238 1.07 1318 1.22 1391 1.36 1460 1.51 1525 1.65 1587 1.78 1646 1.91
1875 998 0.70 1103 0.88 1196 1.05 1280 1.22 1358 1.38 1430 1.54 1498 1.70 1562 1.85 1623 2.00 1681 2.14
2000 1049 0.82 1151 1.02 1241 1.20 1323 1.38 1399 1.56 1470 1.73 1537 1.90 1600 2.06 1660 2.23 1718 2.38
2125 1102 0.96 1199 1.17 1287 1.37 1367 1.56 1441 1.75 1511 1.93 1576 2.12 1639 2.29 1698 2.47 1755 2.64
2250 1154 1.11 1248 1.33 1333 1.55 1411 1.75 1484 1.96 1552 2.15 1617 2.35 1678 2.54 1737 2.73 1793 2.92
2375 1208 1.28 1298 1.52 1381 1.74 1457 1.96 1528 2.18 1595 2.39 1658 2.60 1718 2.80 1776 3.01 --- ---
CFM
2500 1261 1.47 1349 1.72 1429 1.96 1503 2.19 1572 2.42 1638 2.64 1700 2.87 1760 3.08 --- --- --- ---
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Medium static 1035--- 1466 RPM, 2.4 BHP
* High static 1303 --- 1687 RPM, 2.9 BHP max
35
581J
Available External Static Pressure (in. wg)
Available External Static Pressure (in. wg)
FAN PERFORMANCE (cont.)
TABLE 25 – 581J*07----3 PHASE----6 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
TABLE 26 – 581J*07----3 PHASE----6 TON VERTICAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1800 441 0.33 533 0.51 611 0.72 681 0.96 745 1.23 804 1.51 860 1.82 912 2.15 961 2.49 1008 2.85
1950 462 0.38 550 0.58 626 0.80 694 1.04 757 1.31 815 1.60 869 1.91 920 2.24 969 2.59 1016 2.96
2100 483 0.45 567 0.65 641 0.88 708 1.13 769 1.40 826 1.70 880 2.01 930 2.35 978 2.70 1024 3.07
2250 505 0.52 586 0.73 657 0.97 722 1.22 782 1.50 838 1.81 891 2.12 941 2.46 988 2.82 1033 3.19
2400 528 0.60 605 0.82 674 1.07 738 1.33 796 1.62 851 1.92 903 2.25 952 2.59 999 2.95 1043 3.33
2550 550 0.69 625 0.92 692 1.17 754 1.45 811 1.74 865 2.05 916 2.38 964 2.73 1010 3.10 1054 3.48
2700 574 0.80 645 1.03 710 1.29 770 1.57 826 1.88 879 2.19 929 2.53 976 2.88 1022 3.25 1066 3.64
2850 597 0.91 666 1.16 729 1.43 788 1.71 843 2.02 894 2.35 943 2.69 990 3.05 1035 3.43 1078 3.82
CFM
3000 621 1.03 688 1.29 749 1.57 806 1.87 859 2.18 910 2.51 958 2.86 1004 3.23 1048 3.61 1090 4.01
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 489 - -- 747 RPM, 1.7 BHP max
* Medium static 733 -- - 949 RPM, 2.9 BHP max
* High static 909 --- 1102 RPM, 4.7 BHP max
1800 449 0.34 539 0.53 615 0.75 681 0.99 742 1.26 797 1.54 848 1.84 896 2.16 942 2.49 985 2.84
1950 470 0.40 557 0.60 631 0.83 696 1.08 756 1.35 810 1.64 861 1.94 909 2.26 954 2.60 997 2.96
2100 491 0.47 576 0.68 648 0.91 712 1.17 771 1.45 824 1.74 875 2.06 922 2.38 967 2.73 1009 3.09
2250 513 0.54 595 0.76 665 1.01 728 1.27 786 1.56 839 1.86 889 2.18 935 2.52 980 2.87 1022 3.23
2400 536 0.63 615 0.86 684 1.11 745 1.39 802 1.68 854 1.99 903 2.32 950 2.66 993 3.02 1035 3.39
2550 558 0.72 635 0.97 702 1.23 763 1.51 818 1.81 870 2.13 918 2.46 964 2.81 1008 3.18 1049 3.55
2700 582 0.83 656 1.08 721 1.35 781 1.65 835 1.95 886 2.28 934 2.62 979 2.98 1022 3.35 1063 3.74
2850 605 0.94 677 1.21 741 1.49 799 1.79 853 2.11 903 2.44 950 2.79 995 3.16 1037 3.54 1078 3.93
CFM
3000 629 1.07 699 1.35 761 1.64 818 1.95 871 2.28 920 2.62 966 2.98 1010 3.35 1052 3.74 1093 4.14
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 489 - -- 747 RPM, 1.7 BHP max
* Medium static 733 -- - 949 RPM, 2.9 BHP max
* High static 909 --- 1102 RPM, 4.7 BHP max
36
581J
Available External Static Pressure (in. wg)
Available External Static Pressure (in. wg)
FAN PERFORMANCE BELT DRIVE(cont.)
TABLE 27 – 581J*08----3 PHASE----7.5 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
TABLE 28 – 581J*08----3 PHASE----7.5 TON VERTICAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2250 482 0.36 577 0.51 659 0.66 732 0.82 799 0.98 860 1.14 917 1.31 971 1.48 1022 1.66 1071 1.84
2438 505 0.43 597 0.59 676 0.75 748 0.92 813 1.09 873 1.27 929 1.45 983 1.63 1033 1.81 1081 2.00
2625 529 0.51 617 0.68 694 0.85 764 1.03 827 1.22 887 1.40 942 1.59 995 1.78 1045 1.98 1092 2.18
2813 554 0.60 638 0.78 713 0.97 781 1.16 843 1.35 901 1.55 956 1.75 1008 1.95 1057 2.15 1104 2.36
3000 579 0.70 660 0.89 732 1.09 799 1.29 860 1.50 917 1.70 970 1.91 1021 2.13 1070 2.34 1117 2.56
3188 604 0.81 683 1.02 753 1.23 817 1.44 877 1.65 933 1.87 986 2.09 1036 2.32 1084 2.54 1130 2.77
3375 630 0.94 706 1.15 774 1.37 836 1.60 895 1.82 950 2.05 1002 2.29 1051 2.52 1098 2.76 1144 3.00
3563 657 1.08 729 1.31 795 1.54 856 1.77 913 2.01 967 2.25 1018 2.49 1067 2.74 1113 2.99 1158 3.24
CFM
3750 683 1.23 753 1.47 817 1.71 877 1.96 933 2.21 985 2.46 1035 2.71 1083 2.97 1129 3.23 1173 3.49
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 518 - -- 733 RPM, 1.7 BHP max
* Medium static 690 -- - 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
2250 505 0.39 595 0.54 676 0.69 750 0.86 819 1.03 884 1.21 945 1.40 1003 1.60 1059 1.80 1112 2.01
2438 532 0.47 617 0.63 694 0.79 766 0.97 833 1.15 896 1.34 955 1.54 1012 1.74 1066 1.95 1118 2.17
2625 559 0.56 640 0.73 714 0.90 783 1.08 848 1.28 909 1.47 967 1.68 1022 1.89 1075 2.11 1126 2.34
2813 588 0.67 664 0.84 735 1.03 801 1.22 864 1.42 923 1.62 980 1.84 1034 2.06 1086 2.29 1136 2.52
3000 616 0.79 689 0.97 757 1.16 821 1.36 882 1.57 939 1.79 994 2.01 1047 2.24 1098 2.47 1147 2.71
3188 646 0.92 715 1.11 780 1.31 842 1.52 901 1.74 956 1.97 1010 2.20 1061 2.43 1111 2.68 1159 2.93
3375 675 1.06 742 1.27 804 1.48 864 1.70 920 1.93 975 2.16 1027 2.40 1077 2.65 1125 2.90 1172 3.15
3563 705 1.23 769 1.44 829 1.66 886 1.89 941 2.13 994 2.37 1044 2.62 1093 2.87 1141 3.13 1186 3.40
CFM
3750 736 1.41 797 1.63 855 1.86 910 2.10 963 2.35 1014 2.60 1063 2.86 1111 3.12 1157 3.39 1202 3.66
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 518 - -- 733 RPM, 1.7 BHP max
* Medium static 690 -- - 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
37
581J
Available External Static Pressure (in. wg)
Available External Static Pressure (in. wg)
FAN PERFORMANCE BELT DRIVE(cont.)
TABLE 29 – 581J*09----3 PHASE----8.5 TON HORIZONTAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
TABLE 30 – 581J*09----3 PHASE----8.5 TON VERTICAL SUPPLY
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2250 520 0.47 609 0.64 687 0.81 757 0.99 821 1.16 881 1.35 937 1.53 990 1.72 1040 1.91 1088 2.11
2438 547 0.57 633 0.75 708 0.94 776 1.12 839 1.31 897 1.51 952 1.70 1004 1.90 1054 2.11 1101 2.31
2625 575 0.68 657 0.88 730 1.07 796 1.27 857 1.48 915 1.68 968 1.89 1020 2.10 1068 2.32 1115 2.53
2813 604 0.81 683 1.02 753 1.23 817 1.44 877 1.65 933 1.87 986 2.09 1036 2.32 1084 2.54 1130 2.77
3000 634 0.95 709 1.17 777 1.40 839 1.62 897 1.85 952 2.08 1004 2.31 1053 2.55 1100 2.79 1145 3.03
3188 664 1.11 736 1.35 801 1.58 862 1.82 919 2.06 972 2.30 1023 2.55 1071 2.80 1118 3.05 1162 3.30
3375 694 1.29 763 1.54 826 1.79 885 2.04 941 2.29 993 2.55 1043 2.81 1090 3.07 1136 3.33 1179 3.59
3563 725 1.49 791 1.75 852 2.01 909 2.28 963 2.54 1014 2.81 1063 3.08 1110 3.36 1154 3.63 1198 3.91
CFM
3750 756 1.71 819 1.98 879 2.26 934 2.53 987 2.81 1037 3.09 1084 3.38 1130 3.66 1174 3.95 1216 4.24
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 518 - -- 733 RPM, 1.7 BHP max
* Medium static 690 -- - 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
2250 505 0.39 595 0.54 676 0.69 750 0.86 819 1.03 884 1.21 945 1.40 1003 1.60 1059 1.80 1112 2.01
2438 532 0.47 617 0.63 694 0.79 766 0.97 833 1.15 896 1.34 955 1.54 1012 1.74 1066 1.95 1118 2.17
2625 559 0.56 640 0.73 714 0.90 783 1.08 848 1.28 909 1.47 967 1.68 1022 1.89 1075 2.11 1126 2.34
2813 588 0.67 664 0.84 735 1.03 801 1.22 864 1.42 923 1.62 980 1.84 1034 2.06 1086 2.29 1136 2.52
3000 616 0.79 689 0.97 757 1.16 821 1.36 882 1.57 939 1.79 994 2.01 1047 2.24 1098 2.47 1147 2.71
3188 646 0.92 715 1.11 780 1.31 842 1.52 901 1.74 956 1.97 1010 2.20 1061 2.43 1111 2.68 1159 2.93
3375 675 1.06 742 1.27 804 1.48 864 1.70 920 1.93 975 2.16 1027 2.40 1077 2.65 1125 2.90 1172 3.15
3563 705 1.23 769 1.44 829 1.66 886 1.89 941 2.13 994 2.37 1044 2.62 1093 2.87 1141 3.13 1186 3.40
CFM
3750 736 1.41 797 1.63 855 1.86 910 2.10 963 2.35 1014 2.60 1063 2.86 1111 3.12 1157 3.39 1202 3.66
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
* Standard static 518 - -- 733 RPM, 1.7 BHP max
* Medium static 690 -- - 936 RPM, 2.4 BHP max
* High static 838 --- 1084 RPM, 3.7 BHP max
38
FAN PERFORMANCE
X13 MULTI SPEED/TORQUE MOTOR (cont.)
TABLE 31 – 581J*04A Horizontal Unit--Direct Drive
Speed
(Torque)
tap
1
2
3
4
5
CFM ESP BHP
900 0.45 0.23
975 0.33 0.22 1050 0.22 0.20 1125 0.12 0.19 1200 0.05 0.17 1275 --- --­1350 --- --­1425 --- --­1500 --- ---
900 0.66 0.30
975 0.52 0.28 1050 0.39 0.27 1125 0.27 0.26 1200 0.16 0.24 1275 0.05 0.23 1350 --- --­1425 --- --­1500 --- ---
900 1.01 0.43
975 0.88 0.41 1050 0.73 0.39 1125 0.59 0.38 1200 0.46 0.36 1275 0.33 0.36 1350 0.21 0.33 1425 0.09 0.31 1500 --- ---
900 1.13 0.46
975 1.03 0.46 1050 0.92 0.46 1125 0.81 0.46 1200 0.69 0.46 1275 0.57 0.45 1350 0.44 0.44 1425 0.31 0.42 1500 0.18 0.40
900 1.20 0.49
975 1.14 0.51 1050 0.92 0.53 1125 0.81 0.55 1200 0.95 0.57 1275 0.90 0.60 1350 0.84 0.62 1425 0.78 0.65 1500 0.72 0.68
TABLE 32 – 581J*04A Vertical Unit--Direct Drive
Speed
(Torque)
tap
1
2
3
4
5
CFM ESP BHP
900 0.30 0.19
975 0.17 0.17 1050 0.06 0.16 1125 --- --­1200 --- --­1275 --- --­1350 --- --­1425 --- --­1500 --- ---
900 0.48 0.25
975 0.34 0.23 1050 0.20 0.22 1125 0.07 0.20 1200 --- --­1275 --- --­1350 --- --­1425 --- --­1500 --- ---
900 0.84 0.38
975 0.69 0.36 1050 0.53 0.33 1125 0.38 0.32 1200 0.24 0.31 1275 0.10 0.31 1350 --- --­1425 --- --­1500 --- ---
900 0.99 0.43
975 0.88 0.43 1050 0.75 0.43 1125 0.61 0.43 1200 0.47 0.42 1275 0.33 0.40 1350 0.19 0.38 1425 --- --­1500 --- ---
900 1.10 0.47
975 1.02 0.49 1050 0.75 0.51 1125 0.61 0.54 1200 0.81 0.56 1275 0.74 0.58 1350 0.67 0.61 1425 0.60 0.63 1500 0.52 0.66
581J
39
TABLE 33 – 581J*05A Horizontal Unit--Direct Drive
Speed
(Torque)
tap
1
2
581J
3
4
5
CFM ESP BHP
1200 0.49 0.35 1300 0.34 0.33 1400 0.20 0.31 1500 0.06 0.29 1600 --- --­1700 --- --­1800 --- --­1900 --- --­2000 --- --­1200 0.60 0.40 1300 0.45 0.38 1400 0.30 0.36 1500 0.16 0.34 1600 0.01 0.32 1700 --- --­1800 --- --­1900 --- --­2000 --- --­1200 0.94 0.59 1300 0.83 0.61 1400 0.71 0.63 1500 0.59 0.61 1600 0.46 0.59 1700 0.33 0.56 1800 0.19 0.53 1900 0.07 0.49 2000 --- --­1200 0.98 0.59 1300 0.89 0.62 1400 0.81 0.65 1500 0.72 0.66 1600 0.62 0.67 1700 0.52 0.68 1800 0.40 0.68 1900 0.27 0.66 2000 0.12 0.61 1200 1.02 0.60 1300 0.95 0.63 1400 0.81 0.67 1500 0.72 0.70 1600 0.74 0.74 1700 0.67 0.78 1800 0.59 0.82 1900 0.51 0.86 2000 0.42 0.89
TABLE 34 – 581J*05A Vertical Unit--Direct Drive
Speed
(Torque)
tap
1
2
3
4
5
CFM ESP BHP
1200 0.38 0.30 1300 0.24 0.28 1400 0.12 0.27 1500 0.01 0.26 1600 --- --­1700 --- --­1800 --- --­1900 --- --­2000 --- --­1200 0.49 0.34 1300 0.34 0.32 1400 0.20 0.31 1500 0.05 0.29 1600 --- --­1700 --- --­1800 --- --­1900 --- --­2000 --- --­1200 0.87 0.56 1300 0.74 0.57 1400 0.60 0.59 1500 0.44 0.56 1600 0.29 0.50 1700 0.14 0.47 1800 0.02 0.46 1900 --- --­2000 --- --­1200 0.93 0.57 1300 0.83 0.60 1400 0.72 0.63 1500 0.60 0.63 1600 0.48 0.62 1700 0.35 0.62 1800 0.21 0.61 1900 0.06 0.58 2000 --- --­1200 0.97 0.58 1300 0.89 0.61 1400 0.72 0.65 1500 0.60 0.68 1600 0.64 0.72 1700 0.55 0.75 1800 0.46 0.79 1900 0.35 0.82 2000 0.25 0.86
40
TABLE 35 – 581J*06A Horizontal Unit--Direct Drive
Speed
(Torque)
tap
1
2
3
4
5
CFM ESP BHP
1500 0.40 0.50 1625 0.20 0.48 1750 0.04 0.45 1875 --- --­2000 --- --­2125 --- --­2250 --- --­2375 --- --­2500 --- --­1500 0.62 0.62 1625 0.39 0.60 1750 0.19 0.57 1875 0.03 0.53 2000 --- --­2125 --- --­2250 --- --­2375 --- --­2500 --- --­1500 1.04 0.87 1625 0.87 0.88 1750 0.68 0.88 1875 0.48 0.84 2000 0.28 0.84 2125 0.07 0.84 2250 --- --­2375 --- --­2500 --- --­1500 1.10 0.90 1625 0.96 0.94 1750 0.81 0.98 1875 0.65 0.95 2000 0.47 1.00 2125 0.27 0.94 2250 0.05 0.96 2375 --- --­2500 --- --­1500 1.12 0.92 1625 1.00 0.96 1750 0.81 1.00 1875 0.65 1.04 2000 0.56 1.08 2125 0.39 0.95 2250 0.19 1.09 2375 --- --­2500 --- ---
TABLE 36 – 581J*06A Vertical Unit--Direct Drive
Speed
(Torque)
tap
1
2
3
4
5
CFM ESP BHP
1500 0.27 0.45 1625 0.08 0.43 1750 --- --­1875 --- --­2000 --- --­2125 --- --­2250 --- --­2375 --- --­2500 --- --­1500 0.48 0.57 1625 0.26 0.55 1750 0.08 0.53 1875 --- --­2000 --- --­2125 --- --­2250 --- --­2375 --- --­2500 --- --­1500 0.91 0.82 1625 0.72 0.82 1750 0.52 0.81 1875 0.31 0.78 2000 0.11 0.77 2125 --- --­2250 --- --­2375 --- --­2500 --- --­1500 0.98 0.85 1625 0.82 0.89 1750 0.66 0.92 1875 0.50 0.90 2000 0.32 0.92 2125 0.13 0.86 2250 --- --­2375 --- --­2500 --- --­1500 1.00 --­1625 0.86 0.91 1750 0.66 0.95 1875 0.50 0.98 2000 0.41 1.01 2125 0.25 0.88 2250 0.06 1.01 2375 --- --­2500 --- ---
581J
41
TABLE 37 – PULLEY ADJUSTMENT
UNIT Motor/Drive Combo
04
05
06
07
08
09
3
Phase
3
Phase
3
Phase
3
Phase
3
Phase
3
Phase
Medium Static 1175 1135 1094 1054 1013 973 932 892 851 811 770
High Static 1466 1423 1380 1337 1294 1251 1207 1164 1121 1078 1035
Medium Static 1303 1265 1226 1188 1150 1112 1073 1035 997 958 920
High Static 1639 1596 1553 1510 1467 1424 1380 1337 1294 1251 1208
Medium Static 1466 1423 1380 1337 1294 1251 1207 1164 1121 1078 1035
High Static 1687 1649 1610 1572 1533 1495 1457 1418 1380 1341 1303
Standard Static 747 721 695 670 644 618 592 566 541 515 489
Medium Static 949 927 906 884 863 841 819 798 776 755 733
High Static 1102 1083 1063 1044 1025 1006 986 967 948 928 909
Standard Static 733 712 690 669 647 626 604 583 561 540 518
Medium Static 936 911 887 862 838 813 788 764 739 715 690
High Static 1084 1059 1035 1010 986 961 936 912 887 863 838
Standard Static 733 712 690 669 647 626 604 583 561 540 518
Medium Static 936 911 887 862 838 813 788 764 739 715 690
High Static 1084 1059 1035 1010 986 961 936 912 887 863 838
--- F a c t o r y se t t i n g s
581J
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Motor Pulley turns open
42
ECONOMIZER, BAROMETRIC RELIEF AND PE PERFORMANCE
0
500
1000
1500
2000
2500
0 0.05 0.1 0.15 0.2 0.25 0.3
RETURN DUCT STATIC PRESSURE (in. wg)
RELIE F FLOW (CF M)
3 -5 Ton
- Ton
Horizontal Economizers
0
1000
2000
3000
4000
5000
6000
0 0 .1 0.2 0.3 0.4
RETURN DUCT STATIC PRESSURE DROP (in. wg)
RETU RN AIR FLOW (CFM)
3 - TON
- 1/2 Ton
Horizontal Economizers
0
500
1000
1500
2000
2500
0 0.05 0.1 0.15 0.2 0.25 0.3
RETUR N DUCT STATIC PRESS URE (i n. wg)
RELIEF FLOW (CFM)
3 - Ton
- ½ Ton
Vertical Economizers
0
1000
2000
3000
4000
5000
6000
0 0.1 0.2 0.3 0.4
RETUR N DUCT STATIC PRESS URE D ROP (i n. wg)
RETU RN AIR FL OW (CFM)
3 - TON
- 1/2 Ton
Vertical Economizers
6
Fig. 9 -- Barometric Relief Flow Capacity
Fig. 10 -- Return Air Pressure Drop
½
8
C10233
8
6
C10236
Fig. 12 -- Barometric Relief Flow Capacity
581J
5
5 6
8
C10235
Fig. 13 -- Return Air Pressure Drop
5
6
8
C10238
2500
2000
1500
1000
FLOW (cfm)
500
0
0 0.1 0.2 0.3 0.4 0.5
Fig. 11 -- Horizontal Power Exhaust Performance
STATIC PRESSURE (in. wg)
3-8.5 Ton
C10239
43
5000
4000
3000
2000
FLOW (cfm)
1000
0
0 0.1 0.2 0.3 0.4 0.5
STATIC PRESSURE (in. wg)
Fig. 14 -- Vertical Power Exhaust Performance
3 - 5 Ton
6 - 8 1/2 Ton
C10240
EFF at Full Load FLA
EFF at Full Load FLA
581J

ELECTRICAL INFORMATION

Max
AMP Draw
Max
WATTS
MED 1000 5.1 70% 4.9
MED 1000 5.1 70% 4.9
MED 1000 2.2 70% 2.1
D D --- S T D 980 7.8 84% 7.4
HIGH 2120 5.5 80% 5.2
D D --- S T D 980 7.8 84% 7.4
HIGH 2120 5.5 80% 5.2
D D --- S T D 980 4.2 84% 4.0
HIGH 2120 2.7 80% 2.6
D D --- S T D 980 4.2 84% 4.0
MED 1000 2.0 71% 1.9
HIGH 2120 2.1 80% 2.0
TABLE 38 – 581J*04A----1--STAGE COOLING----3 TONS
Max
AMP Draw
Max
WATTS
MED 1000 5.1 70% 4.9
MED 1000 5.1 70% 4.9
MED 1000 2.2 70% 2.1
D D --- S T D 980 7.8 84% 7.4
HIGH 2120 5.5 80% 5.2
D D --- S T D 980 7.8 84% 7.4
HIGH 2120 5.5 80% 5.2
D D --- S T D 980 4.2 84% 4.0
HIGH 2120 2.7 80% 2.6
D D --- S T D 980 4.2 84% 4.0
MED 1000 2.0 71% 1.9
HIGH 2120 2.1 80% 2.0
TABLE 39 – 581J*05A----1--STAGE COOLING----4 TONS
RLA LRA WATTS FLA TYPE
RANGE
VOLTAGE COMP (ea) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 1 --- 6 0 187 253 16.6 79 190 1.0 D D --- S T D 980 7.8 84% 7.4
2 3 0 --- 1 --- 6 0 187 253 16.6 79 190 1.0 D D --- S T D 980 7.8 84% 7.4
2 0 8 --- 3 --- 6 0 187 253 10.4 73 190 1.0
2 3 0 --- 3 --- 6 0 187 253 10.4 73 190 1.0
4 6 0 --- 3 --- 6 0 414 506 5.8 38 190 0.5
5 7 5 --- 3 --- 6 0 518 633 3.8 37 190 0.5
RLA LRA WATTS FLA TYPE
RANGE
VOLTAGE COMP (ea) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 1 --- 6 0 187 253 21.8 117 325 1.4 DD --- S T D 980 7.8 84% 7.4
2 3 0 --- 1 --- 6 0 187 253 21.8 117 325 1.4 DD --- S T D 980 7.8 84% 7.4
2 0 8 --- 3 --- 6 0 187 253 13.7 83 325 1.4
2 3 0 --- 3 --- 6 0 187 253 13.7 83 325 1.4
4 6 0 --- 3 --- 6 0 414 506 6.2 41 325 0.9
5 7 5 --- 3 --- 6 0 518 633 4.8 37 325 0.9
44
EFF at Full Load FLA
EFF at Full Load FLA
ELECTRICAL INFORMATION (CON’T)
Max
AMP Draw
Max
WATTS
MED 2120 5.5 80% 5.2
MED 2120 5.5 80% 5.2
MED 2120 2.7 80% 2.6
D D --- S T D 980 7.8 84% 7.4
HIGH 2615 7.9 81% 7.5
D D --- S T D 980 7.8 84% 7.4
HIGH 2615 7.9 81% 7.5
D D --- S T D 980 4.2 84% 4.0
HIGH 2615 3.6 81% 3.4
D D --- S T D 980 4.2 84% 4.0
MED 1390 2.1 81% 2.0
HIGH 3775 2.9 81% 2.8
TABLE 40 – 581J*06A----1--STAGE COOLING----5 TONS
Max
AMP Draw
Max
WATTS
STD 2120 5.5 80% 5.2
STD 2120 5.5 80% 5.2
STD 2120 2.7 80% 2.6
MED 2615 7.9 81% 7.5
HIGH 2615 15.8 81% 15.0
MED 2615 7.9 81% 7.5
HIGH 2615 15.8 81% 15.0
MED 2615 3.6 81% 3.4
HIGH 3775 7.8 81% 7.4
STD 2120 2.5 80% 2.4
MED 3775 2.9 81% 2.8
HIGH 3775 5.9 81% 5.6
TABLE 41 – 581J*07A----1--STAGE COOLING----6 TONS
581J
RLA LRA WATTS FLA TYPE
RLA LRA WATTS FLA TYPE
RANGE
VOLTAGE COMP (ea) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 1 --- 6 0 187 253 25.0 134 325 1.4 DD --- S T D 980 7.8 84% 7.4
2 3 0 --- 1 --- 6 0 187 253 25.0 134 325 1.4 DD --- S T D 980 7.8 84% 7.4
2 0 8 --- 3 --- 6 0 187 253 15.9 110 325 1.4
2 3 0 --- 3 --- 6 0 187 253 15.9 110 325 1.4
4 6 0 --- 3 --- 6 0 414 506 7.0 52 325 0.9
5 7 5 --- 3 --- 6 0 518 633 5.1 40 325 0.9
RANGE
VOLTAGE COMP (ea) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 3 --- 6 0 187 253 19.0 123 325 1.5
2 3 0 --- 3 --- 6 0 187 253 19.0 123 325 1.5
4 6 0 --- 3 --- 6 0 414 506 9.7 62 325 0.8
5 7 5 --- 3 --- 6 0 518 633 7.4 50 325 0.6
45
FLA
FLA
581J
Load
EFF at Full
Max
AMP Draw
Max
WATTS
STD 1448 5.5 80% 5.2
STD 1448 5.5 80% 5.2
STD 1448 2.7 80% 2.6
MED 2278 7.9 81% 7.5
HIGH 4400 15.0 81% 15.0
MED 2278 7.9 81% 7.5
HIGH 4400 15.0 81% 15.0
MED 2278 3.6 81% 3.4
HIGH 4400 7.4 81% 7.4
STD 1379 2.5 80% 2.4
MED 3775 2.9 81% 2.8
HIGH 4400 5.9 81% 5.6
Load
EFF at Full
Max
AMP Draw
Max
WATTS
STD 1448 5.46 80% 5.2
STD 1448 5.46 80% 5.2
STD 1448 2.73 80% 2.6
MED 2120 5.46 80% 5.2
HIGH 2694 10.5 80% 10.0
MED 2120 5.46 80% 5.2
HIGH 2694 10.5 80% 10.0
MED 2120 2.73 80% 2.6
HIGH 2694 4.62 80% 4.4
STD 1379 2.52 80% 2.4
MED 1390 2.1 80% 2.0
HIGH 3775 2.94 81% 2.8
ELECTRICAL INFORMATION (CON’T)
TABLE 42 – 581J*08D----2--STAGE COOLING----7.5 TONS
RLA LRA RLA LRA WAT TS FLA TYPE
RANGE
VOLTAGE COMP (Cir 1) COMP (Cir 2) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 3 --- 6 0 187 253 13.6 83 13.6 83 325 1.5
2 3 0 --- 3 --- 6 0 187 253 13.6 83 13.6 83 325 1.5
4 6 0 --- 3 --- 6 0 414 506 6.1 41 6.1 41 325 0.8
5 7 5 --- 3 --- 6 0 518 633 4.2 33 4.2 33 325 0.6
TABLE 43 – 581J*09D----2--STAGE COOLING----8.5 TONS
RLA LRA RLA LRA WAT TS FLA TYPE
RANGE
VOLTAGE COMP (Cir 1) COMP (Cir 2) OFM (ea) IFM
MIN MAX
V --- P h --- H z
2 0 8 --- 3 --- 6 0 187 253 13.7 83 13.7 83 325 1.5
2 3 0 --- 3 --- 6 0 187 253 13.7 83 13.7 83 325 1.5
4 6 0 --- 3 --- 6 0 414 506 6.2 41 6.2 41 325 0.8
5 7 5 --- 3 --- 6 0 518 633 4.8 37 4.8 37 325 0.6
46
DISC. SIZE
FUSE or
BRKR
HACR
MCA
NO C.O. or UNPWR C.O.
NO P.E. w/ P.E. (pwrd fr/ unit)
PWR
EXHAUST

MCA/MOCP

COMBUST
FAN MOTOR
DISC. SIZE
FUSE or
FLA LRA FLA LRA
BRKR
HACR
21.4 30 22 82 23.3 30 24 84
0.48 1.9
11.8 15 12 43 12.8 15 13 44
0.25 1.0
9.3 15 10 42 11.2 15 12 44
0.24 1.9
25.9 30 26 93 27.8 40 28 95
0.48 1.9
12.7 15 13 47 13.7 20 14 48
0.25 1.0
10.9 15 11 43 12.8 15 13 45
0.24 1.9
28.7 40 28 120 30.6 45 31 122
0.48 1.9
13.7 20 14 58 14.7 20 15 59
0.25 1.0
581J
11.3 15 12 46 13.2 15 14 48
0.24 1.9
IFM
TYPE FLA FLA MCA
MED 18.9 25 19 87 20.8 30 21 89
D D --- S T D
HIGH 19.2 25 19 105 21.1 30 21 107
MED 9.9 15 10 45 10.9 15 11 46
D D --- S T D
HIGH 10.4 15 10 54 11.4 15 11 55
MED 7.2 15 7 43 9.1 15 9 45
HIGH 7.3 15 7 49 9.2 15 9 51
D D --- S T D
MED 23.4 30 23 98 25.3 30 25 100
D D --- S T D
HIGH 23.7 30 23 116 25.6 30 26 118
MED 10.8 15 11 49 11.8 15 12 50
D D --- S T D
HIGH 11.3 15 11 58 12.3 15 12 59
MED 8.8 15 9 44 10.7 15 11 46
HIGH 8.9 15 9 50 10.8 15 11 52
D D --- S T D
MED 26.5 40 26 143 28.4 40 28 145
D D --- S T D
HIGH 28.8 40 29 169 30.7 45 31 171
MED 12.3 15 12 69 13.3 20 13 70
D D --- S T D
HIGH 13.1 20 13 82 14.1 20 14 83
MED 9.3 15 9 53 11.2 15 11 55
HIGH 10.1 15 10 64 12.0 15 12 66
D D --- S T D
TABLE 44 – MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.--3--5 TON
208/230--- 1 ---60 D D --- ST D 0.48 1.9 29.2 45 29 88 31.1 45 31 90
208/230--- 3 ---60
UNIT v --- p H --- h Z
4 6 0 --- 3 --- 60
04
5 7 5 --- 3 --- 60
208/230--- 1 ---60 D D --- ST D 0.48 1.9 36.1 50 35 127 38.0 50 37 129
208/230--- 3 ---60
05
4 6 0 --- 3 --- 60
5 7 5 --- 3 --- 60
208/230--- 1 ---60 D D --- ST D 0.48 1.9 40.1 60 39 144 42.0 60 41 146
208/230--- 3 ---60
06
4 6 0 --- 3 --- 60
5 7 5 --- 3 --- 60
47
581J
DISC. SIZE
BRKR
HACR
FUSE or
MCA
w/ PWRD C.O.
DISC. SIZE
FLA LRA FLA LRA
NO P.E. w/ P.E. (pwrd fr/ unit)
BRKR
HACR
FUSE or
26.2 30 27 87 28.1 35 29 89
PWR
EXHAUST
14.0 20 14 45 15.0 20 16 46
11.0 15 12 44 12.9 15 14 46
30.7 40 31 98 32.6 45 34 100
14.9 20 15 49 15.9 20 16 50
12.6 15 13 45 14.5 20 15 47
33.5 45 34 125 35.4 50 36 127
15.9 20 16 60 16.9 20 17 61
13.0 15 13 48 14.9 20 16 50
MCA/MOCP (CON’T)
0.48 1.9
COMBUST
FAN MOTOR
IFM
TYPE FLA FLA MCA
MED 23.7 30 24 92 25.6 30 26 94
D D --- S T D
TABLE 45 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET--3--5 TON
208/230--- 1 ---60 D D --- S T D 0.48 1.9 34.0 50 34 93 35.9 50 36 95
208/230--- 3 ---60
HIGH 24.0 30 25 110 25.9 30 27 112
0.25 1.0
MED 12.1 15 12 47 13.1 15 13 48
D D --- S T D
4 6 0 --- 3 --- 60
HIGH 12.6 15 13 56 13.6 20 14 57
0.24 1.9
MED 8.9 15 9 45 10.8 15 11 47
HIGH 9.0 15 9 51 10.9 15 11 53
D D --- S T D
5 7 5 --- 3 --- 60
208/230--- 1 ---60 D D --- S T D 0.48 1.9 40.9 60 41 132 42.8 60 43 134
0.48 1.9
MED 28.2 40 29 103 30.1 40 31 105
D D --- S T D
208/230--- 3 ---60
HIGH 28.5 40 29 121 30.4 40 31 123
0.25 1.0
MED 13.0 15 13 51 14.0 20 14 52
D D --- S T D
4 6 0 --- 3 --- 60
HIGH 13.5 20 14 60 14.5 20 15 61
0.24 1.9
MED 10.5 15 11 46 12.4 15 13 48
HIGH 10.6 15 11 52 12.5 15 13 54
D D --- S T D
5 7 5 --- 3 --- 60
208/230--- 1 ---60 D D --- S T D 0.48 1.9 44.9 60 44 149 46.8 60 47 151
0.48 1.9
MED 31.3 45 31 148 33.2 45 34 150
D D --- S T D
208/230--- 3 ---60
HIGH 33.6 45 34 174 35.5 50 36 176
0.25 1.0
MED 14.5 20 15 71 15.5 20 16 72
D D --- S T D
4 6 0 --- 3 --- 60
HIGH 15.3 20 16 84 16.3 20 17 85
0.24 1.9
MED 11.0 15 11 55 12.9 15 13 57
HIGH 11.8 15 12 66 13.7 15 14 68
D D --- S T D
5 7 5 --- 3 --- 60
UNIT v --- p H --- h Z
04
05
06
48
DISC. SIZE
or
FUSE
BRKR
HACR
MCA
NO C.O. or UNPWR C.O.
DISC. SIZE
FLA LRA FLA LRA
NO P.E. w/ P.E. (pwrd fr/ unit)
BRKR
HACR
FUSE or
581J
32.0 50 31 148 35.8 50 36 152
PWR
EXHAUST
MCA/MOCP (CON’T)
COMBUST FAN
MOTOR
IFM
STD
TYPE FLA FLA MCA
0.48 3.8
MED 34.3 50 34 185 38.1 50 38 189
HIGH 41.8 60 43 211 45.6 60 47 215
16.3 25 16 75 18.1 25 18 77
STD
0.25 1.8
MED 17.1 25 17 94 18.9 25 19 96
HIGH 21.1 30 22 107 22.9 30 24 109
12.9 20 13 61 16.7 20 17 65
STD
0.24 3.8
MED 13.3 20 13 76 17.1 20 17 80
HIGH 16.1 20 16 90 19.9 25 21 94
38.8 50 41 191 42.6 50 45 195
STD
0.48 3.8
MED 38.8 50 41 202 42.6 50 45 206
HIGH 43.6 50 46 245 47.4 60 51 249
17.9 20 19 95 19.7 25 21 97
STD
0.25 1.8
MED 17.9 20 19 101 19.7 25 21 103
HIGH 19.7 25 21 123 21.5 25 23 125
13.1 15 14 77 16.9 20 18 81
STD
0.24 3.8
MED 12.7 15 13 81 16.5 20 18 85
HIGH 13.5 15 14 92 17.3 20 19 96
39.0 50 41 191 42.8 50 45 195
STD
0.48 3.8
MED 39.0 50 41 202 42.8 50 45 206
HIGH 43.8 50 46 245 47.6 60 51 249
18.2 20 19 95 20.0 25 21 97
STD
0.25 1.8
MED 18.2 20 19 101 20.0 25 21 103
HIGH 20.0 25 21 123 21.8 25 23 125
14.4 20 15 77 18.2 20 20 81
STD
0.24 3.8
MED 14.0 20 15 81 17.8 20 19 85
HIGH 14.8 20 16 92 18.6 20 20 96
TABLE 46 – MCA/MOCP DETERMINATION NO C.O. OR UNPWRD C.O.--6--8.5 TON
208/
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
208/
5 7 5 --- 3 --- 60
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
208/
5 7 5 --- 3 --- 60
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
5 7 5 --- 3 --- 60
UNIT V --- P h --- H z
07
08
( 2 --- s t a g e
cool)
09
( 2 --- s t a g e
cool)
49
581J
DISC. SIZE
or
FUSE
BRKR
HACR
MCA
w/ PWRD C.O.
DISC. SIZE
FLA LRA FLA LRA
NO P.E. w/ P.E. (pwrd fr/ unit)
or
FUSE
BRKR
HACR
36.8 50 37 153 40.6 50 41 157
T
PWR
EXHAUS
MOTOR
COMBUST FAN
0.48 3.8
18.5 25 19 77 20.3 30 21 79
0.25 1.8
14.6 20 15 63 18.4 25 19 67
0.24 3.8
43.6 50 46 196 47.4 60 51 200
0.48 3.8
20.1 25 21 97 21.9 25 23 99
0.25 1.8
14.8 20 16 79 18.6 20 20 83
0.24 3.8
43.8 50 46 196 47.6 60 51 200
0.48 3.8
20.4 25 22 97 22.2 25 24 99
0.25 1.8
16.1 20 17 79 19.9 25 22 83
0.24 3.8
MCA/MOCP (CON’T)
IFM
STD
TYPE FLA FLA MC A
MED 39.1 50 39 190 42.9 60 44 194
HIGH 46.6 60 48 216 50.4 60 52 220
STD
MED 19.3 25 19 96 21.1 30 22 98
HIGH 23.3 30 24 109 25.1 30 26 111
STD
MED 15.0 20 15 78 18.8 25 19 82
HIGH 17.8 25 18 92 21.6 25 23 96
STD
MED 43.6 50 46 207 47.4 60 51 211
HIGH 48.4 60 52 250 52.2 60 56 254
STD
MED 20.1 25 21 103 21.9 25 23 105
HIGH 21.9 25 23 125 23.7 30 26 127
STD
MED 14.4 20 15 83 18.2 20 20 87
HIGH 15.2 20 16 94 19.0 25 21 98
STD
MED 43.8 50 46 207 47.6 60 51 211
HIGH 48.6 60 52 250 52.4 60 56 254
STD
MED 20.4 25 22 103 22.2 25 24 105
HIGH 22.2 25 24 125 24.0 30 26 127
STD
MED 15.7 20 17 83 19.5 25 21 87
HIGH 16.5 20 18 94 20.3 25 22 98
208/
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
208/
5 7 5 --- 3 --- 60
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
208/
5 7 5 --- 3 --- 60
2 3 0 --- 3 --- 60
4 6 0 --- 3 --- 60
5 7 5 --- 3 --- 60
TABLE 47 – MCA/MOCP DETERMINATION WITH POWERED CONVENIENCE OUTLET.--6--8.5 TON
UNIT V --- P h --- H z
07
08
50
( 2 --- s t a g e
cool)
09
( 2 --- s t a g e
cool)

TYPICAL WIRING DIAGRAMS

581J
Fig. 15 -- 1--Stage Cooling Typical Power Diagram
51
C08518
581J
TYPICAL WIRING DIAGRAMS (cont.)
Fig. 16 -- 2--Stage Cooling Typical Power Diagram
52
C08577
C08524
581J
Fig. 17 -- 1--Stage Typical Wiring Diagram
53
581J
C08578
Fig. 18 -- 2--Stage Typical Wiring Diagram
54

SEQUENCE OF OPERATION

General
The sequence below describes the sequence of operation for an electro--mechanical unit with and without a factory installed EconoMi$ert IV (called “economizer” in this sequence). For information regarding a direct digital controller, see the start--up, operations, and troubleshooting manual for the applicable controller.
Electro--mechanical units with no economizer
Cooling —
When the thermostat calls for cooling, terminals G and Y1 are energized. As a result, the indoor--fan contactor (IFC) and the compressor contactor (C1) are energized, causing the indoor--an motor (IFM), compressor #1, and outdoor fan to start. If the unit has 2 stages of cooling, the thermostat will additionally energize Y2. The Y2 signal will energize compressor contactor #2 (C2), causing compressor #2 to start. Regardless of the number of stages, the outdoor--fan motor runs continuously while unit is cooling.
Heating NOTE: Preferred Seriest (581J) units have either 1 or 2
stages of gas heat. When the thermostat calls for heating, power is sent to W
on the Integrated Gas Controller (IGC) board. An LED (light--emitting diode) on the IGC board turns on and remains on during normal operation. A check is made to ensure that the rollout switch and limit switch are closed. If the check was successful, the induced--draft motor is energized, and when its speed is satisfactory, as proven by the “hall effect” sensor, the ignition activation period begins. The burners will ignite within 5 seconds. If the burners do not light, there is a 22--second delay before another 5--second attempt. This sequence is repeated for 15 minutes or until the burners light. If, after the 15 minutes, the burners still have not lit, heating is locked out. To reset the control, break 24--v power to the thermostat.
When ignition occurs, the IGC board will continue to monitor the condition of the rollout switch, the limit switches, the “hall effect” sensor, as well as the flame sensor. 45 seconds after ignition occurs, assuming the unit is controlled through a room thermostat set for fan auto, the indoor--fan motor will energize (and the outdoor--air dampers will open to their minimum position). If, for some reason, the over--temperature limit opens prior to the start of the indoor fan blower, the unit will shorten the 45--second delay to 5 seconds less than the time from initiation of heat to when the limit tripped. Gas will not be interrupted to the burners and heating will continue. Once the fan--on delay has been modified, it will not change back to 45 seconds until power is reset to the control.
On units with 2 stages of heat, when additional heat is required, W2 closes and initiates power to the second stage of the main gas valve. When the thermostat is satisfied, W1 and W2 open and the gas valve closes, interrupting the flow of gas to the main burners.
If the call for W1 lasted less than 1 minute, the heating cycle will not terminate until 1 minute after W1 became active. If the unit is controlled through a room thermostat set for fan auto, the indoor--fan motor will continue to operate for an additional 45 seconds then stop. If the over--temperature limit opens after the indoor motor is stopped, but within 10 minutes of W1 becoming inactive, on the next cycle the time will be extended by 15 seconds. The maximum delay is 3 minutes. Once modified, the fan off delay will not change back to 45 seconds unless power is reset to the control. A LED indicator is provided on the IGC to monitor operation.
Electro--mechanical units with an economizer
Cooling —
When free cooling is not available, the compressors will be controlled by the zone thermostat. When free cooling is available, the outdoor--air damper is modulated by the EconoMi$er IV control to provide a 50_F(10_C) to 55_F (13_C) mixed--air temperature into the zone. As the mixed air temperature fluctuates above 55_F(13_C) or below 50_F(10_C) dampers will be modulated (open or close) to bring the mixed--air temperature back within control. If mechanical cooling is utilized with free cooling, the outdoor--air damper will maintain its current position at the time the compressor is started. If the increase in cooling capacity causes the mixed--air temperature to drop below 45_F(7_C), then the outdoor--air damper position will be decreased to the minimum position. If the mixed--air temperature continues to fall, the outdoor--air damper will close. Control returns to normal once the mixed--air temperature rises above 48_F(9_C). The power exhaust fans will be energized and de--energized, if installed, as the outdoor--air damper opens and closes.
If field--installed accessory CO the EconoMi$er IV control, a demand controlled ventilation strategy will begin to operate. As the CO level in the zone increases above the CO2setpoint, the minimum position of the damper will be increased proportionally. As the CO increase in fresh air, the outdoor--air damper will be proportionally closed. For EconoMi$er IV operation, there must be a thermostat call for the fan (G). If the unit is occupied and the fan is on, the damper will operate at minimum position. Otherwise, the damper will be closed.
When the EconoMi$er IV control is in the occupied mode and a call for cooling exists (Y1 on the thermostat), the control will first check for indoor fan operation. If the fan is not on, then cooling will not be activated. If the fan is on, then the control will open the EconoMi$er IV damper to the minimum position.
sensors are connected to
2
level decreases because of the
2
581J
2
55
SEQUENCE OF OPERATION (cont.)
On the initial power to the EconoMi$er IV control, it will take the damper up to 2 1/2 minutes before it begins to position itself. After the initial power--up, further changes in damper position can take up to 30 seconds to initiate. Damper movement from full closed to full open (or vice versa) will take between 1 1/2 and 2 1/2 minutes. If free cooling can be used as determined from the appropriate changeover command (switch, dry bulb, enthalpy curve, differential dry bulb, or differential enthalpy), then the control will modulate the dampers open to maintain the mixed--air temperature setpoint at 50_F(10_C) to 55_F (13_C). If there is a further demand for cooling (cooling second stage -- Y2 is energized), then the control will bring on compressor stage 1 to maintain the mixed--air temperature setpoint. The EconoMi$er IV damper will be open at maximum position. EconoMi$er IV operation is
581J
limited to a single compressor.
Heating
The sequence of operation for the heating is the same as an electromechanical unit with no economizer. The only difference is how the economizer acts. The economizer will stay at the Economizer Minimum Position while the evaporator fan is operating. The outdoor--air damper is closed when the indoor fan is not operating.
56
GUIDE SPECIFICATIONS -- 581J*04--09
Note about this specification: This specification is in the “Masterformat” as published by the Construction Specification Institute. Please feel free to copy
this specification directly into your building spec.
Gas Heat/Electric Cooling Packaged Rooftop
HVAC Guide Specifications
Size Range: 3 to 8.5 Nominal Tons
Section Description 23 06 80 Schedules for Decentralized HVAC Equipment
23 06 80.13 Decentralized Unitary HVAC Equipment Schedule 23 06 80.13.A. Rooftop unit schedule
1. Schedule is per the project specification requirements.
23 07 16 HVAC Equipment Insulation
23 07 16.13 Decentralized, Rooftop Units: 23 07 16.13.A. Evaporator fan compartment:
1. Interior cabinet surfaces shall be insulated with a minimum 1/2--in. thick, minimum 1 1/2 lb density, flexible fiberglass insulation bonded with a phenolic binder, neoprene coated on the air side.
2. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
23 07 16.13.B. Gas heat compartment:
1. Aluminum foil--faced fiberglass insulation shall be used.
2. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
23 09 13 Instrumentation and Control Devices for HVAC
23 09 13.23 Sensors and Transmitters 23 09 13.23.A. Thermostats
1. Thermostat must
a. energize both “W” and “G” when calling for heat. b. have capability to energize 2 different stages of cooling, and 2 different stages of heating. c. include capability for occupancy scheduling.
23 09 23 Direct--digital Control system for HVAC
23 09 23.13 Decentralized, Rooftop Units: 23 09 23.13.A. NA
1. Shall be ASHRAE 62--2001 compliant.
2. Shall accept 18--32 VAC input power.
3. Shall have an operating temperature range from --40_F(--40_C) to 158_F(70_C), 10% -- 95% RH (non--condens- ing).
4. Shall include an integrated economizer controller to support an economizer with 4 to 20 mA actuator input and no microprocessor controller.
5. Controller shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature, in­door air quality, outdoor air quality, indoor relative humidity, compressor lock--out, fire shutdown, enthalpy, fan status, remote time clock/door switch.
6. Shall accept a CO
7. Shall provide the following outputs: economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2, heat stage 3/ exhaust/ reversing valve/ dehumidify/ occupied.
8. Unit shall provide surge protection for the controller through a circuit breaker.
9. Shall be Internet capable, and communicate at a Baud rate of 38.4K or faster
10. Shall have an LED display independently showing the status of activity on the communication bus, and processor operation.
sensor in the conditioned space, and be Demand Control Ventilation (DCV) ready.
2
581J
57
11. Shall include an EIA--485 protocol communication port, an access port for connection of either a computer or a Bryant technician tool, an EIA--485 port for network communication to intelligent space sensors and displays, and a port to connect an optional LonWorks plug--in communications card.
12. Shall have built--in support for Bryant technician tool.
13. Software upgrades will be accomplished by local download. Software upgrades through chip replacements are not allowed.
14. Shall be shock resistant in all planes to 5G peak, 11ms during operation, and 100G peak, 11ms during storage.
15. Shall be vibration resistant in all planes to 1.5G @ 20--300 Hz.
16. Shall support a bus length of 4000 ft (1219m) max, 60 devices per 1000 ft (305m) section, and 1 RS--485 repeater per 1000 ft (305m) sections.
23 09 23.13.B. RTU--MP -- Open protocol, direct digital controller:
1. Shall be ASHRAE 62--2001 compliant.
2. Shall accept 18--30VAC, 50--60Hz, and consumer 15VA or less power.
3. Shall have an operating temperature range from --40_F(--40_C) to 130_F(54_C), 10% -- 90% RH (non--condens- ing).
581J
4. Shall include built--in protocol for BACNET (MS/TP and PTP modes), Modbus (RTU and ASCII), Johnson N2 and LonWorks. LonWorks Echelon processor required for all Lon applications shall be contained in separate com­munication board.
5. Shall allow access of up to 62 network variables (SNVT). Shall be compatible with all open controllers
6. Baud rate Controller shall be selectable using a dipswitch.
7. Shall have an LED display independently showing the status of serial communication, running, errors, power, all digital outputs, and all analog inputs.
8. Shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature, indoor air qu­ality, outdoor air quality, compressor lock--out, fire shutdown, enthalpy switch, and fan status/filter status/ humid­ity/ remote occupancy.
9. Shall provide the following outputs: economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2, heat stage 3/ exhaust/ reversing valve.
10. Shall have built--in surge protection circuitry through solid state polyswitches. Polyswitches shall be used on in­coming power and network connections. Polyswitches will return to normal when the “trip” condition clears.
11. Shall have a battery back--up capable of a minimum of 10,000 hours of data and time clock retention during power outages.
12. Shall have built--in support for Bryant technician tool.
13. Shall include an EIA--485 protocol communication port, an access port for connection of either a computer or a Bryant technician tool, an EIA--485 port for network communication to intelligent space sensors and displays, and a port to connect an optional LonWorks communications card.
14. Software upgrades will be accomplished by either local or remote download. No software upgrades through chip replacements are allowed.
23 09 33 Electric and Electronic Control System for HVAC
23 09 33.13 Decentralized, Rooftop Units: 23 09 33.13.A. General:
1. Shall be complete with self--contained low--voltage control circuit protected by a resettable circuit breaker on the 24--v transformer side. Transformer shall have 75VA capability.
2. Shall utilize color--coded wiring.
3. Shall include a central control terminal board to conveniently and safely provide connection points for vital con­trol functions such as: smoke detectors, phase monitor, gas controller, economizer, thermostat, DDC control op­tions, and low and high pressure switches.
4. The heat exchanger shall be controlled by an integrated gas controller (IGC) microprocessor. See heat exchanger section of this specification.
5. Unit shall include a minimum of one 8--pin screw terminal connection board for connection of control wiring.
23 09 33.23.B. Safeties:
1. Compressor over--temperature, over--current. High internal pressure differential.
2. Low--pressure switch.
a. Units with 2 compressors shall have different sized connectors for the circuit 1 and circuit 2 low and high pres-
sure switches. They shall physically prevent the cross--wiring of the safety switches between circuits 1 and 2.
b. Low pressure switch shall use different color wire than the high pressure switch. The purpose is to assist the
installer and service technician to correctly wire and or troubleshoot the rooftop unit.
58
3. High--pressure switch.
a. Units with 2 compressors shall have different sized connectors for the circuit 1 and circuit 2 low and high pres-
sure switches. They shall physically prevent the cross--wiring of the safety switches between circuits 1 and 2.
b. High pressure switch shall use different color wire than the low pressure switch. The purpose is to assist the
installer and service technician to correctly wire and or troubleshoot the rooftop unit.
4. Automatic reset, motor thermal overload protector.
5. Heating section shall be provided with the following minimum protections:
a. High--temperature limit switches. b. Induced draft motor speed sensor. c. Flame rollout switch. d. Flame proving controls.
23 09 93 Sequence of Operations for HVAC Controls
23 09 93.13 Decentralized, Rooftop Units: 23 09 93.13 INSERT SEQUENCE OF OPERATION
23 40 13 Panel Air Filters
23 40 13.13 Decentralized, Rooftop Units: 23 40 13.13.A. Standard filter section
1. Shall consist of factory--installed, low velocity, disposable 2--in. thick fiberglass filters of commercially available sizes.
2. Unit shall use only one filter size. Multiple sizes are not acceptable.
3. Filters shall be accessible through an access panel with “no--tool” removal as described in the unit cabinet section of this specification (23 81 19.13.H).
23 81 19 Self--Contained Air Conditioners
23 81 19.13 Small--Capacity Self--Contained Air Conditioners (581J*04--09) 23 81 19.13.A. General
1. Outdoor, rooftop mounted, electrically controlled, heating and cooling unit utilizing a fully hermetic scroll com­pressor(s) for cooling duty and gas combustion for heating duty.
2. Factory assembled, single--piece heating and cooling rooftop unit. Contained within the unit enclosure shall be all factory wiring, piping, controls, and special features required prior to field start--up.
3. Unit shall use environmentally sound, PuronR refrigerant.
4. Unit shall be installed in accordance with the manufacturer’s instructions.
5. Unit must be selected and installed in compliance with local, state, and federal codes.
23 81 19.13.B. Quality Assurance
1. Unit meets ASHRAE 90.1--2007 minimum efficiency requirements.
2. 3 phase units are Energy Star certified.
3. Unit shall be rated in accordance with AHRI Standards 210/240 and 340/360.
4. Unit shall be designed to conform to ASHRAE 15, 2001.
5. Unit shall be UL--tested and certified in accordance with ANSI Z21.47 Standards and UL--listed and certified under Canadian standards as a total package for safety requirements.
6. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
7. Unit casing shall be capable of withstanding 500--hour salt spray exposure per ASTM B117 (scribed specimen).
8. Unit casing shall be capable of withstanding Federal Test Method Standard No. 141 (Method 6061) 5000--hour salt spray.
9. Unit shall be designed in accordance with ISO 9001:2008, and shall be manufactured in a facility registered by ISO 9001:2008.
10. Roof curb shall be designed to conform to NRCA Standards.
11. Unit shall be subjected to a completely automated run test on the assembly line. The data for each unit will be stored at the factory, and must be available upon request.
12. Unit shall be designed in accordance with UL Standard 1995, including tested to withstand rain.
13. Unit shall be constructed to prevent intrusion of snow and tested to prevent snow intrusion into the control box up to 40 mph.
14. Unit shake tested to assurance level 1, ASTM D4169 to ensure shipping reliability.
23 81 19.13.C. Delivery, Storage, and Handling
581J
59
581J
1. Unit shall be stored and handled per manufacturer’s recommendations.
2. Lifted by crane requires either shipping top panel or spreader bars.
3. Unit shall only be stored or positioned in the upright position.
23 81 19.13.E. Project Conditions
1. As specified in the contract.
23 81 19.13.F. Operating Characteristics
1. Unit shall be capable of starting and running at 125_F(52_C) ambient outdoor temperature, meeting maximum load criteria of AHRI Standard 210/240 or 360 at ± 10% voltage.
2. Compressor with standard controls shall be capable of operation down to 35_F(2_C), ambient outdoor temperat- ures. Accessory low ambient kits shall be available if operation below 35_F(2_C), is required. See below for head pressure control package or winter start kit.
3. Unit shall discharge supply air vertically or horizontally as shown on contract drawings.
4. Unit shall be factory configured for vertical supply & return configurations.
5. Unit shall be field convertible from vertical to horizontal configuration without the use of special conversion kits.
6. Unit shall be capable of mixed operation: vertical supply with horizontal return or horizontal supply with vertical return.
23 81 19.13.G. Electrical Requirements
1. Main power supply voltage, phase, and frequency must match those required by the manufacturer.
23 81 19.13.H. Unit Cabinet
1. Unit cabinet shall be constructed of galvanized steel, and shall be bonderized and coated with a pre--painted baked enamel finish on all externally exposed surfaces.
2. Unit cabinet exterior paint shall be: film thickness, (dry) 0.003 inches minimum, gloss (per ASTM D523, 60_F/ 16_C): 60, Hardness: H--2H Pencil hardness.
3. Evaporator fan compartment interior cabinet insulation shall conform to AHRI Standards 210/240 or 340/360 minimum exterior sweat criteria. Interior surfaces shall be insulated with a minimum 1/2--in. thick, 1 lb density, flexible fiberglass insulation, neoprene coated on the air side. Aluminum foil--faced fiberglass insulation shall be used in the gas heat compartment.
4. Base of unit shall have a minimum of four locations for thru--the--base gas and electrical connections (factory installed or field installed), standard.
5. Base Rail
a. Unit shall have base rails on a minimum of 4 sides. b. Holes shall be provided in the base rails for rigging shackles to facilitate maneuvering and overhead rigging. c. Holes shall be provided in the base rail for moving the rooftop by fork truck. d. Base rail shall be a minimum of 16 gauge thickness.
6. Condensate pan and connections:
a. Shall be an internally sloped condensate drain pan made of a non--corrosive material. b. Shall comply with ASHRAE Standard 62. c. Shall use a 3/4” --14 NPT drain connection, possible either through the bottom or side of the drain pan. Con-
nection shall be made per manufacturer’s recommendations.
7. Top panel:
a. Shall be a single piece top panel on 04 thru 09 sizes.
8. Gas Connections:
a. All gas piping connecting to unit gas valve shall enter the unit cabinet at a single location on side of unit (ho-
rizontal plane).
b. Thru--the--base capability
(1.) Standard unit shall have a thru--the--base gas--line location using a raised, embossed portion of the unit
basepan.
(2.) Optional, factory--approved, water--tight connection method must be used for thru--the--base gas connec-
tions.
(3.) No basepan penetration, other than those authorized by the manufacturer, is permitted.
9. Electrical Connections
a. All unit power wiring shall enter unit cabinet at a single, factory--prepared, knockout location. b. Thru--the--base capability.
(1.) Standard unit shall have a thru--the--base electrical location(s) using a raised, embossed portion of the unit
basepan.
60
(2.) Optional, factory--approved, water--tight connection method must be used for thru--the--base electrical con-
nections.
(3.) No basepan penetration, other than those authorized by the manufacturer, is permitted.
10. Component access panels (standard) a. Cabinet panels shall be easily removable for servicing. b. Unit shall have one factory installed, tool--less, removable, filter access panel. c. Panels covering control box, indoor fan, indoor fan motor, gas components (where applicable), and com-
pressors shall have a molded composite handles. d. Handles shall be UV modified, composite. They shall be permanently attached, and recessed into the panel. e. Screws on the vertical portion of all removable access panel shall engage into heat resistant, molded compos-
ite collars.
f. Collars shall be removable and easily replaceable using manufacturer recommended parts.
23 81 19.13.I. Gas Heat
1. General a. Heat exchanger shall be an induced draft design. Positive pressure heat exchanger designs shall not be al-
lowed. b. Shall incorporate a direct--spark ignition system and redundant main gas valve. c. Gas supply pressure at the inlet to the rooftop unit gas valve must match that required by the manufacturer.
2. The heat exchanger shall be controlled by an integrated gas controller (IGC) microprocessor. a. IGC board shall notify users of fault using an LED (light--emitting diode). b. The LED shall be visible without removing the control box access panel. c. IGC board shall contain algorithms that modify evaporator--fan operation to prevent future cycling on high
temperature limit switch.
d. Unit shall be equipped with anti--cycle protection with one short cycle on unit flame rollout switch or 4 con-
tinuous short cycles on the high temperature limit switch. Fault indication shall be made using an LED.
3. Standard Heat Exchanger construction a. Heat exchanger shall be of the tubular--section type constructed of a minimum of 20--gauge steel coated with a
nominal 1.2 mil aluminum--silicone alloy for corrosion resistance. b. Burners shall be of the in--shot type constructed of aluminum--coated steel. c. Burners shall incorporate orifices for rated heat output up to 2000 ft (610m) elevation. Additional accessory
kits may be required for applications above 2000 ft (610m) elevation, depending on local gas supply condi-
tions. d. Each heat exchanger tube shall contain multiple dimples for increased heating effectiveness.
4. Optional Stainless Steel Heat Exchanger construction a. Use energy saving, direct--spark ignition system. b. Use a redundant main gas valve. c. Burners shall be of the in--shot type constructed of aluminum--coated steel. d. All gas piping shall enter the unit cabinet at a single location on side of unit (horizontal plane). e. The optional stainless steel heat exchanger shall be of the tubular--section type, constructed of a minimum of
20--gauge type 409 stainless steel.
f. Type 409 stainless steel shall be used in heat exchanger tubes and vestibule plate.
g. Complete stainless steel heat exchanger allows for greater application flexibility.
5. Optional Low NO a. Low NO
x
agement District (SCAQMD) low--NO
b. Primary tubes and vestibule plates on low NO
Heat Exchanger construction
x
reduction shall be provided to reduce nitrous oxide emissions to meet California’s Air Quality Man-
emissions requirement of 40 nanograms per joule or less.
x
units shall be 409 stainless steel. Other components shall be
x
aluminized steel.
6. Induced draft combustion motor and blower a. Shall be a direct--drive, single inlet, forward--curved centrifugal type. b. Shall be made from steel with a corrosion--resistant finish. c. Shall have permanently lubricated sealed bearings. d. Shall have inherent thermal overload protection. e. Shall have an automatic reset feature.
581J
61
581J
23 81 19.13.J. Coils
1. Standard Aluminum Fin/Copper Tube Coils: a. Standard evaporator and condenser coils shall have aluminum lanced plate fins mechanically bonded to seam-
less internally grooved copper tubes with all joints brazed.
b. Evaporator coils shall be leak tested to 150 psig, pressure tested to 450 psig, and qualified to UL 1995 burst
test at 1775 psig.
c. Condenser coils shall be leak tested to 150 psig, pressure tested to 650 psig, and qualified to UL 1995 burst
test at 1980 psig.
2. Optional Pre--coated aluminum--fin condenser coils: a. Shall have a durable epoxy--phenolic coating to provide protection in mildly corrosive coastal environments. b. Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier
between the aluminum fin and copper tube.
c. Epoxy--phenolic barrier shall minimize galvanic action between dissimilar metals.
3. Optional Copper--fin evaporator and condenser coils: a. Shall be constructed of copper fins mechanically bonded to copper tubes and copper tube sheets. b. Galvanized steel tube sheets shall not be acceptable. c. A polymer strip shall prevent coil assembly from contacting the sheet metal coil pan to minimize potential for
galvanic corrosion between coil and pan.
4. Optional E--coated aluminum--fin evaporator and condenser coils: a. Shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material
bridging between fins. b. Coating process shall ensure complete coil encapsulation of tubes, fins and headers. c. Color shall be high gloss black with gloss per ASTM D523--89. d. Uniform dry film thickness from 0.8 to 1.2 mil on all surface areas including fin edges. e. Superior hardness characteristics of 2H per ASTM D3363--92A and cross--hatch adhesion of 4B--5B per ASTM
D3359--93.
f. Impact resistance shall be up to 160 in.--lb (ASTM D2794--93).
g. Humidity and water immersion resistance shall be up to minimum 1000 and 250 hours respectively (ASTM
D2247--92 and ASTM D870--92). h. Corrosion durability shall be confirmed through testing to be no less than 1000 hours salt spray per ASTM
B117--90.
5. Optional E--coated aluminum--fin, aluminum tube condenser coils: a. Shall have a flexible epoxy polymer coating uniformly applied to all coil external surface areas without mater-
ial bridging between fins or louvers. b. Coating process shall ensure complete coil encapsulation, including all exposed fin edges. c. E--coat thickness of 0.8 to 1.2 mil with top coat having a uniform dry film thickness from 1.0 to 2.0 mil on all
external coil surface areas, including fin edges, shall be provided. d. Shall have superior hardness characteristics of 2H per ASTM D3363--00 and cross--hatch adhesion of 4B--5B
per ASTM D3359--02. e. Shall have superior impact resistance with no cracking, chipping or peeling per NSF/ANSI 51--2002 Method
10.2.
23 81 19.13.K. Refrigerant Components
1. Refrigerant circuit shall include the following control, safety, and maintenance features: a. Thermostatic Expansion Valve (TXV) shall help provide optimum performance across the entire operating
range. Shall contain removable power element to allow change out of power element and bulb without remov-
ing the valve body. b. Refrigerant filter drier -- Solid core design. c. Service gauge connections on suction and discharge lines. d. Pressure gauge access through a specially designed access port in the top panel of the unit.
2. There shall be gauge line access port in the skin of the rooftop, covered by a black, removable plug. a. The plug shall be easy to remove and replace. b. When the plug is removed, the gauge access port shall enable maintenance personnel to route their pressure
gauge lines.
c. This gauge access port shall facilitate correct and accurate condenser pressure readings by enabling the read-
ing with the compressor access panel on.
62
d. The plug shall be made of a leak proof, UV--resistant, composite material.
3. Compressors a. Unit shall use fully hermetic, scroll compressor for each independent refrigeration circuit. b. Models shall be available with single compressor/single stage cooling designs on 04 – 07 sizes models, and 2
compressor/2 stage cooling models on 08 – 09 sizes. c. Compressor motors shall be cooled by refrigerant gas passing through motor windings. d. Compressors shall be internally protected from high discharge temperature conditions. e. Compressors shall be protected from an over--temperature and over--amperage conditions by an internal, motor
overload device.
f. Compressor shall be factory mounted on rubber grommets.
g. Compressor motors shall have internal line break thermal, current overload and high pressure differential pro-
tection. h. Crankcase heaters shall not be required for normal operating range, unless provided by the factory.
23 81 19.13.L. Filter Section
1. Filters access is specified in the unit cabinet section of this specification.
2. Filters shall be held in place by a pivoting filter tray, facilitating easy removal and installation.
3. Shall consist of factory--installed, low velocity, throw--away 2--in. thick fiberglass filters.
4. Filters shall be standard, commercially available sizes.
5. Only one size filter per unit is allowed.
23 81 19.13.M. Evaporator Fan and Motor
1. Evaporator fan motor: a. Shall have permanently lubricated bearings. b. Shall have inherent automatic--reset thermal overload protection or circuit breaker. c. Shall have a maximum continuous bhp rating for continuous duty operation; no safety factors above that rating
shall be required.
2.ElectricDrive(DirectDrive)X13–5Speed/TorqueEvaporatorFan: a. Multi speed motor with easy quick adjustment settings. b. Blower fan shall be double--inlet type with forward--curved blades. c. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced. d. Standard on all 04--06 models with 208/230/1/60 operation e. Standard on all 04--06 3--phase models, with optional belt drive.
3. Belt--driven Evaporator Fan: a. Belt drive shall include an adjustable--pitch motor pulley. b. Shall use sealed, permanently lubricated ball--bearing type. c. Blower fan shall be double--inlet type with forward--curved blades. d. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced. e. Standard on all 07--09 size models. Optional on all 04--06 3--phase models.
23 81 19.13.N. Condenser Fans and Motors
1. Condenser fan motors: a. Shall be a totally enclosed motor. b. Shall use permanently lubricated bearings. c. Shall have inherent thermal overload protection with an automatic reset feature. d.Shalluseashaft--downdesignon04to09models.
2. Condenser Fans: a. Shall be a direct--driven propeller type fan. b. Shall have aluminum blades riveted to corrosion--resistant steel spiders and shall be dynamically balanced.
23 81 19.13.O. Special Features Options and Accessories
1. Integrated Economizers: a. Integrated, gear--driven parallel modulating blade design type capable of simultaneous economizer and com-
pressor operation.
b. Independent modules for vertical or horizontal return configurations shall be available. Vertical return modules
shall be available as a factory installed option.
c. Damper blades shall be galvanized steel with composite gears. Plastic or composite blades on intake or return
shall not be acceptable.
581J
63
581J
d. Shall include all hardware and controls to provide free cooling with outdoor air when temperature and/or hu-
midity are below setpoints.
e. Shall be equipped with gear driven dampers for both the outdoor ventilation air and the return air for positive
air stream control.
f. Shall be equipped with low--leakage dampers, not to exceed 2% leakage at 1 in. wg pressure differential. g. Shall be capable of introducing up to 100% outdoor air. h. Shall be equipped with a barometric relief damper capable of relieving up to 100% return air.
i. Shall be designed to close damper(s) during loss--of--power situations with spring return built into motor.
j. Dry bulb outdoor--air temperature sensor shall be provided as standard. Outdoor air sensor setpoint shall be
adjustable and shall range from 40 to 100_F/4to38_C. Additional sensor options shall be available as ac- cessories.
k. The economizer controller shall also provide control of an accessory power exhaust unit. function. Factory set
at 100%, with a range of 0% to 100%.
l. The economizer shall maintain minimum airflow into the building during occupied period and provide design
ventilation rate for full occupancy. A remote potentiometer may be used to override the damper setpoint.
m. Dampers shall be completely closed when the unit is in the unoccupied mode.
n. Economizer controller shall accept a 2--10Vdc CO
sensor input for IAQ/DCV control. In this mode, dampers
2
shall modulate the outdoor--air damper to provide ventilation based on the sensor input. o. Compressor lockout sensor shall open at 35_F(2_C) and close closes at 50_F(10_C). p. Actuator shall be direct coupled to economizer gear. No linkage arms or control rods shall be acceptable. q. Economizer controller shall provide indications when in free cooling mode, in the DCV mode, or the exhaust
fan contact is closed.
2. Two--Position Damper a. Damper shall be a Two--Position Damper. Damper travel shall be from the full closed position to the field ad-
justable %--open setpoint. b. Damper shall include adjustable damper travel from 25% to 100% (full open). c. Damper shall include single or dual blade, gear driven dampers and actuator motor. d. Actuator shall be direct coupled to damper gear. No linkage arms or control rods shall be acceptable. e. Damper will admit up to 100% outdoor air for applicable rooftop units.
f. Damper shall close upon indoor (evaporator) fan shutoff and/or loss of power. g. The damper actuator shall plug into the rooftop unit’s wiring harness plug. No hard wiring shall be required. h. Outside air hood shall include aluminum water entrainment filter.
3. Manual damper a. Manual damper package shall consist of damper, air inlet screen, and rain hood which can be preset to admit
up to 25 or 50% outdoor air for year round ventilation.
4. Head Pressure Control Package a. Controller shall control coil head pressure by condenser--fan speed modulation or condenser--fan cycling and
wind baffles.
b. Shall consist of solid--state control and condenser--coil temperature sensor to maintain condensing temperature
between 90_F(32_C) and 110_F(43_C)at outdoor ambient temperatures down to --20_F(--29_C).
5. Propane Conversion Kit a. Package shall contain all the necessary hardware and instructions to convert a standard natural gas unit for use
with liquefied propane, up to 2000 ft (610m) elevation.
b. Additional accessory kits may be required for applications above 2000 ft (610m) elevation.
6. Flue Shield a. Flue shield shall provide protection from the hot sides of the gas flue hood.
7. Condenser Coil Hail Guard Assembly a. Shall protect against damage from hail. b. Shall be of louvered style.
8. Unit--Mounted, Non--Fused Disconnect Switch: a. Switch shall be factory--installed, internally mounted. b. National Electric Code (NEC) and UL approved non--fused switch shall provide unit power shutoff. c. Shall be accessible from outside the unit. d. Shall provide local shutdown and lockout capability.
9. Convenience Outlet:
64
a. Powered convenience outlet.
(1.) Outlet shall be powered from main line power to the rooftop unit. (2.) Outlet shall be powered from line side or load side of disconnect by installing contractor, as required by
code. If outlet is powered from load side of disconnect, unit electrical ratings shall be UL certified and
rated for additional outlet amperage. (3.) Outlet shall be factory--installed and internally mounted with easily accessible 115--v female receptacle. (4.) Outlet shall include 15 amp GFI receptacles with independent fuse protection. (5.) Voltage required to operate convenience outlet shall be provided by a factory--installed step--down trans-
former. (6.) Outlet shall be accessible from outside the unit. (7.) Outlet shall include a field--installed “Wet in Use” cover.
b. Non--Powered convenience outlet.
(1.) Outlet shall be powered from a separate 115/120v power source. (2.) A transformer shall not be included. (3.) Outlet shall be factory--installed and internally mounted with easily accessible 115--v female receptacle. (4.) Outlet shall include 15 amp GFI receptacles with independent fuse protection. (5.) Outlet shall be accessible from outside the unit. (6.) Outlet shall include a field--installed “Wet in Use” cover.
10. Flue Discharge Deflector: a. Flue discharge deflector shall direct unit exhaust vertically instead of horizontally. b. Deflector shall be defined as a “natural draft” device by the National Fuel and Gas (NFG) code.
11. Thru--the--Base Connectors: a. Kits shall provide connectors to permit gas and electrical connections to be brought to the unit through the
unit basepan.
b. Minimum of four connection locations per unit.
12. Propeller Power Exhaust: a. Power exhaust shall be used in conjunction with an integrated economizer. b. Independent modules for vertical or horizontal return configurations shall be available. c. Horizontal power exhaust is shall be mounted in return ductwork. d. Power exhaust shall be controlled by economizer controller operation. Exhaust fans shall be energized when
dampers open past the 0--100% adjustable setpoint on the economizer control.
13. Roof Curbs (Vertical): a. Full perimeter roof curb with exhaust capability providing separate air streams for energy recovery from the
exhaust air without supply air contamination. b. Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight. c. Permits installation and securing of ductwork to curb prior to mounting unit on the curb.
14. High Altitude Gas Conversion Kit: a. Package shall contain all the necessary hardware and instructions to convert a standard natural gas unit to op-
erate from 2000--7000 ft (610 to 2134m) elevation with natural gas or from 0--7000 ft (90--2134m) elevation with liquefied propane.
15. Outdoor Air Enthalpy Sensor: a. The outdoor air enthalpy sensor shall be used to provide single enthalpy control. When used in conjunction
with a return air enthalpy sensor, the unit will provide differential enthalpy control. The sensor allows the unit to determine if outside air is suitable for free cooling.
16. Return Air Enthalpy Sensor: a. The return air enthalpy sensor shall be used in conjunction with an outdoor air enthalpy sensor to provide dif-
ferential enthalpy control.
17. Indoor Air Quality (CO
)Sensor:
2
a. Shall be able to provide demand ventilation indoor air quality (IAQ) control. b. The IAQ sensor shall be available in duct mount, wall mount, or wall mount with LED display. The setpoint
shall have adjustment capability.
18. Smoke detectors (factory--installed only): a. Shall be a Four--Wire Controller and Detector. b. Shall be environmental compensated with differential sensing for reliable, stable, and drift--free sensitivity. c. Shall use magnet--activated test/reset sensor switches.
65
581J
581J
d. Shall have tool--less connection terminal access. e. Shall have a recessed momentary switch for testing and resetting the detector.
f. Controller shall include:
(1.) One set of normally open alarm initiation contacts for connection to an initiating device circuit on a fire
alarm control panel. (2.) Two Form--C auxiliary alarm relays for interface with rooftop unit or other equipment. (3.) One Form--C supervision (trouble) relay to control the operation of the Trouble LED on a remote test/reset
station. (4.) Capable of direct connection to two individual detector modules. (5.) Can be wired to up to 14 other duct smoke detectors for multiple fan shutdown applications
19. Winter start kit a. Shall contain a bypass device around the low pressure switch. b. Shall be required when mechanical cooling is required down to 25_F(--4_C). c. Shall not be required to operate on an economizer when below an outdoor ambient of 40_F(4_C).
20. Time Guard a. Shall prevent compressor short cycling by providing a 5--minute delay (±2 minutes) before restarting a com-
pressor after shutdown for any reason.
b. One device shall be required per compressor.
21. Hinged Access Panels a. Shall provide easy access through integrated quarter turn latches. b. Shall be on major panels of – filter, control box, fan motor and compressor
66
Loading...