SINGLE-PACKAGE HEAT PUMP UNITS Model 602B Sizes 024-060 with Puron® (R-410A) Refrigerant 2 to 5 Nominal Tons Form No. PDS 602B.24.3 Single-Package Products with Energy-Saving Features and Puron® refrigerant. • 12 SEER • HSPF up to 7.2 • Low Sound Levels • Variable Speed Blower Option FEATURES/BENEFITS One-piece Heat Pump unit with optional electric heater, low in- stallation cost, dependable performance and easy maintenance. EFFICIENT OPERATION High-efficiency design with SEERs (Seasonal Energy Efficien- cy Ratio) of 12.0. Puron® Environmentally Sound Refrigerant is Bryant’s unique refrigerant designed to help protect the environment. Puron is an HFC refrigerant which does not contain chlorine that can harm the ozone layer. The most important advantage of Puron refrigerant is that it has not been banned in future air con- ditioning systems as the traditional refrigerant R-22 has been. Puron refrigerant is in service in over 100,000 systems proving highly reliable, environmentally sound performance. Perfect Heat, Perfect Humidity™ featuring Variable Speed Blower motors provides better comfort and energy efficiency. You can expect up to 30 times better dehumidification; a SEER boost of up to 12.7; economical constant fan for less than $30 a year, which provides improved indoor air quality and more even temperatures from room to room; and reduced indoor noise due to lower air velocity. In addition, you’ll realize improved installation flexibility with 3 different airflow choices for best overall comfort. EASY INSTALLATION Factory-assembled package is a compact, fully self-contained, heat pump unit that is pre-wired, pre-piped, and pre-charged for minimum installation expense. 602B units are available in a va- riety of standard capacity ranges with voltage options to meet residential and light commercial requirements. Units install eas- ily on a rooftop or at ground-level. DURABLE, DEPENDABLE COMPONENTS Compressors are designed for high efficiency. Each compres- sor is hermetically sealed against contamination to help promote longer life and dependable operation. Vibration isolation pro- vides quiet operation. Compressors have internal high-pressure and overcurrent protection. Convertible duct configuration Unit is designed for easy use in either downflow or horizontal applications. Each unit is easily converted from horizontal to downflow and include horizontal duct covers. Direct-drive multi-speed, PSC (permanent split capacitor) blower motor is standard on all 602B models. Direct-drive, PSC condenser-fan motors are designed to help reduce energy consumption and provide for cooling operation down to 40°F outdoor temperature. Motormaster® II low ambient kit is available as a field-installed accessory. Corporate thermostats designed to work as a system with Bryant’s small packaged product. Refrigerant system is designed to provide dependability. Liquid refrigerant filter driers are used to promote clean, unrestricted operation. Each unit leaves the factory with a full Puron® refrig- erant charge. Refrigerant service connections make checking operating pressures easier. Indoor and Outdoor coils are computer-designed for optimum heat transfer and cooling efficiency. The indoor coil is fabricated from copper tube and aluminum fins and is located inside the unit for protection against damage. The outdoor coil is internally mounted on the top tier of the unit. Copper fin coils and pre-coat- ed fin coils are available from the factory by special order. These coils are recommended in applications where aluminum fins are likely to be damaged due to corrosion. They are ideal for sea- coast applications. High and Low Pressure Switches give added safety and reli- ability to the compressor. Low sound ratings ensure a quiet indoor and outdoor environ- ment with sound ratings as low as 72 dB. (See page 3.) Easy to service cabinets provide easy single-panel accessibil- ity to serviceable components during maintenance and installa- tion. The basepan with integrated drain pan provides easy ground level installation with or without a mounting pad. Conve- nient handholds are provided to manipulate the unit on the job- site. A nesting feature ensures a positive basepan to roof curb seal when the unit is roof mounted. A convenient 3/4-in. wide pe- rimeter flange makes frame mounting on a rooftop easy. UNIT 602B
Transcript
SINGLE-PACKAGEHEAT PUMPUNITS
Model 602BSizes 024-060
with Puron® (R-410A) Refrigerant2 to 5 Nominal Tons
Form No. PDS 602B.24.3
Single-Package Products with Energy-Saving Features andPuron® refrigerant.• 12 SEER• HSPF up to 7.2• Low Sound Levels• Variable Speed Blower Option
FEATURES/BENEFITS
One-piece Heat Pump unit with optional electric heater, low in-stallation cost, dependable performance and easy maintenance.
EFFICIENT OPERATIONHigh-efficiency design
with SEERs (Seasonal Energy Efficien-cy Ratio) of 12.0.
Puron® Environmentally Sound Refrigerant
is Bryant’sunique refrigerant designed to help protect the environment.Puron is an HFC refrigerant which does not contain chlorine thatcan harm the ozone layer. The most important advantage ofPuron refrigerant is that it has not been banned in future air con-ditioning systems as the traditional refrigerant R-22 has been.Puron refrigerant is in service in over 100,000 systems provinghighly reliable, environmentally sound performance.
provides better comfort and energy efficiency.You can expect up to 30 times better dehumidification; a SEERboost of up to 12.7; economical constant fan for less than $30 ayear, which provides improved indoor air quality and more eventemperatures from room to room; and reduced indoor noise dueto lower air velocity. In addition, you’ll realize improved installationflexibility with 3 different airflow choices for best overall comfort.
EASY INSTALLATIONFactory-assembled package
is a compact, fully self-contained,heat pump unit that is pre-wired, pre-piped, and pre-charged forminimum installation expense. 602B units are available in a va-riety of standard capacity ranges with voltage options to meetresidential and light commercial requirements. Units install eas-ily on a rooftop or at ground-level.
DURABLE, DEPENDABLE COMPONENTSCompressors
are designed for high efficiency. Each compres-sor is hermetically sealed against contamination to help promotelonger life and dependable operation. Vibration isolation pro-vides quiet operation. Compressors have internal high-pressureand overcurrent protection.
Convertible duct configuration
Unit is designed for easy usein either downflow or horizontal applications. Each unit is easilyconverted from horizontal to downflow and include horizontalduct covers.
Direct-drive multi-speed, PSC (permanent split capacitor)blower motor
is standard on all 602B models.
Direct-drive, PSC condenser-fan motors
are designed to helpreduce energy consumption and provide for cooling operationdown to 40°F outdoor temperature. Motormaster® II low ambientkit is available as a field-installed accessory.
Corporate thermostats
designed to work as a system withBryant’s small packaged product.
Refrigerant system
is designed to provide dependability. Liquidrefrigerant filter driers are used to promote clean, unrestrictedoperation. Each unit leaves the factory with a full Puron® refrig-erant charge. Refrigerant service connections make checkingoperating pressures easier.
Indoor and Outdoor coils
are computer-designed for optimumheat transfer and cooling efficiency. The indoor coil is fabricatedfrom copper tube and aluminum fins and is located inside theunit for protection against damage. The outdoor coil is internallymounted on the top tier of the unit. Copper fin coils and pre-coat-ed fin coils are available from the factory by special order. Thesecoils are recommended in applications where aluminum fins arelikely to be damaged due to corrosion. They are ideal for sea-coast applications.
High and Low Pressure Switches
give added safety and reli-ability to the compressor.
Low sound ratings
ensure a quiet indoor and outdoor environ-ment with sound ratings as low as 72 dB.(See page 3.)
Easy to service cabinets
provide easy single-panel accessibil-ity to serviceable components during maintenance and installa-tion. The basepan with integrated drain pan provides easyground level installation with or without a mounting pad. Conve-nient handholds are provided to manipulate the unit on the job-site. A nesting feature ensures a positive basepan to roof curbseal when the unit is roof mounted. A convenient 3/4-in. wide pe-rimeter flange makes frame mounting on a rooftop easy.
UNIT 602B
—2—
Louvered Grille
provides hail and vandalism protection for thecoil.
Downflow operation
is easily provided in the field to allow ver-tical ductwork connections. The basepan utilizes knockout styleseals on the bottom openings to ensure a positive seal in thehorizontal airflow mode.
Cabinets
are constructed of heavy-duty, phosphated, zinc-coat-ed prepainted steel capable of withstanding 500 hrs of saltspray. Interior surfaces of the evaporator and electric heatercompartments are insulated with cleanable semi-rigid insulationboard, which keeps the conditioned air from being affected bythe outdoor ambient temperature and provides improved indoorair quality. (Conforms to American Society of Heating, Refriger-ation and Air Conditioning Engineers No. 62P.) The sloped drainpan minimizes standing water in the drain, which is provided withan external drain.
Standard metal duct covers
with insulation come with the unitand cover the horizontal duct openings. These can be left inplace if the units are converted to downflow.
Short-Cycling protection
for the compressor is incorporatedinto our defrost control board ensuring a five minute delay (+/-2minutes) before restarting compressor after shutdown for anyreason.
— Heating Season Performance Factor* Air Conditioning & Refrigeration Institute.
** “A” Capacity– 80°F indoor db/67°F indoor wb and 95°F outdoor db.† Rated in accordance with U.S. Government DOE (Department of
Energy) test procedures and/or ARI Standard 210/240-94.‡ Tested in accordance with ARI Standard 270-95 (not listed in ARI).
NOTES:1. Ratings are net values, reflecting the effects of circulating fan heat.
Ratings are based on:
Cooling Standard:
80°F db, 67°F wb indoor entering-air tempera-ture and 95°F db outdoor entering-air temperature.
2. Before purchasing this appliance, read important energy cost andefficiency information available from your retailer.
AL
— Aluminum
CU
— Copper
—4—
PHYSICAL DATA
* Required filter sizes shown are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft/minute for throwaway type or 450 ft/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
UNIT SIZE 602B 024 030 036 042 048 060
NOMINAL CAPACITY (ton)
2 2-1/2 3 3-1/2 4 5
OPERATING WEIGHT (lb)
299 320 328 350 355 428
COMPRESSOR
Scroll
REFRIGERANT (R-410A)Quantity (lb)
7.0 8.9 9.3 9.5 10.6 12.4
REFRIGERANT METERING DEVICEOrifice ID (in.)Orifice OD (in.)
20 x 20 x 1 20 x 20 x 1 20 x 24 x 1 24 x 30 x 1 24 x 30 x 1 24 x 30 x 1
32 5
A2
MA
NU
FAC
TUR
ER
CERTIFIED TO ARI AS COMPLY
ING
WITH
ARI STANDARD 210
UN
ITAR
Y
AIR CONDITIO
NIN
G
EQUIPMENT
OUTDOOR SOUND: OCTAVE BAND DATA—DECIBELS (L w(A))
MODEL NO. 602B
Frequency (Hz) 024 030 036 042 048 060
63
44.4 43.9 53.6 47.7 57.1 54.6
125
57.5 55.9 63.6 60.4 63.9 64.1
250
61.1 60.9 66.6 64.0 70.4 68.6
500
68.0 66.9 71.1 67.5 72.7 71.2
1000
68.4 67.2 73.2 68.9 73.7 73.9
2000
64.5 63.8 69.6 64.9 71.1 69.8
4000
59.0 62.4 65.9 62.0 66.7 68.1
8000
51.7 52.1 58.4 55.0 59.7 61.8
—5—
Factory-installed options
Coil options
include copper/copper and vinyl-coated construc-tion for refrigerant coils. Units are shipped standard with coppertube/aluminum fin construction. See model number nomencla-ture for coil options.
Electronic Variable-Speed Motor
— ICM Motors (IntegratedControl Motor) provide variable-speed operation to optimizecomfort levels year round. They are also more economical to op-erate than standard motors.
Field-installed accessories
Economizer with solid-state controls and barometric reliefdampers
includes filter racks and provide outdoor air duringcooling and reduce compressor operation.
Manual outside air damper
includes hood and filter rack withadjustable damper blade for up to 25% outdoor air.
Electric heaters
provide additional heat in the unit when re-quired. Each package has a heater module that slides into thecontrols compartment. Heater sizes range from 5.0 to 20.0 kw.The electric heater design allows the use of a single-point powersupply for the entire unit, resulting in lower installed costs.
Flat roof curbs
in both 8 in. and 14 in. sizes are available forroof mounted applications.
Square-to-round duct transition kit
enables 024-048 sizeunits to be fitted to 14 in. round ductwork.
Thermostats
provide control for the system heating and coolingfunctions. Thermostat models are available in both programma-ble and non-programmable versions.
Lifting kit
includes 4 metal brackets that fit into the hand-holds,a support strap and two safety straps, is available to assist in lift-ing this product onto a roof application.
Crankcase heater
provides anti-floodback protection for low-load cooling applications (Standard on 602B 042-060).
Low-ambient kit (Motormaster II control)
allows the use ofmechanical cooling down to outdoor temperatures as low as0°F.
Filter rack
features easy installation, serviceability, and high-filtering performance for vertical applications.
Compressor hard start kit
assists compressor start-up by pro-viding additional starting torque on single phase units and pro-longs compressor motor life.
Economizer with Solid-State Controls and Barometric
Relief Dampers
Manual Air Damper (25% open)
Electric Heaters
Filter Rack
Flat Roof Curbs (8-in. and 14-in.)
Square-to-Round Duct Transition Kit
Thermostats
Crankcase Heater
Low Ambient Kit (Motormaster® II Control)
Lifting Kit
Compressor Hard Start Kit
ELECTRIC HEATERS
LEGENDODS — Order Distribution SystemNOTE: Electric heaters are rated at 240v and 480v. Refer to Multiplication Factors table for other voltages.
MINIMUM AIRFLOW FOR RELIABLE ELECTRIC HEATER OPERATION
ODS CATALOGORDERING NO.
NOMINAL CAPACITY (kW)
USED WITH SIZES024 030 036 042 048 060
ELECTRIC HEATERS (208/230 — SINGLE PHASE — 60 Hz)CPHEATER052A00
5.0 X X X X
CPHEATER064A00
5.0 X X
CPHEATER070A00
7.5 X X X X X X
CPHEATER050A00
10.0 X X X X X X
CPHEATER066A00
15.0 X X X X X
CPHEATER054A00
20.0 X X X
ELECTRIC HEATERS (208/230 — 3 PHASE — 60 Hz)CPHEATER055A00
5.0 X X X X X
CPHEATER056A00
10.0 X X X X
CPHEATER068A00
10.0 X
CPHEATER058A00
15.0 X X X X X
CPHEATER067A00
20.0 X X X
ELECTRIC HEATERS (460 V — 3 PHASE — 60 Hz)CPHEATER060A00
Notes:1. Roof curb must be set up for unit being installed.2. Seal strip must be applied, as required, to unit being installed.3. Dimensions in [ ] are in millimeters.4. Roof curb is made of 16-gage steel.5. Table lists only the dimensions, per part number, that have changed.6. Attach ductwork to curb (flanges of duct rest on curb).7. Insulated panels: 1-in. thick fiberglass 1 lb. density.8. Dimensions are in inches.9. When unit mounting screw is used (Note A), a retainer bracket must be used as
well. This bracket must also be used when required by code for hurricane or seismic conditions. This bracket is available through Micrometl.
—10—
602B CORNER WEIGHTS (IN POUNDS)
I DETERMINE COOLING AND HEATING REQUIREMENTS AT DESIGN CONDITIONS:
Given:Required Cooling Capacity (TC).....................33,500 BtuhSensible Heat Capacity (SHC).........................24,500 BtuhRequired Heating Capacity..............................25,000 BtuhCondenser Entering Air Temperature......................... 95°FIndoor-Air Temperature ........................80°F edb 67°F ewbEvaporator Air Quantity .....................................1200 CFMExternal Static Pressure....................................... 0.2 in. wgElectrical Characteristics.......................................230-1-60
II SELECT UNIT BASED ON REQUIRED COOLINGCAPACITY.
Enter Net Cooling Capacities table at condenser enteringtemperature of 95°F. The 602B036 unit at 1200 cfm and67°F ewb (entering wet bulb) will provide a total capacity of36,600 Btuh and a SHC of 28,200 Btuh. Calculate SHCcorrection, if required, using Note 4 under CoolingCapacities tables.
III SELECT ELECTRIC HEAT.
Enter the 602B036 unit Heating Extended Performancetable at 1200 cfm. At 70°F return indoor air and 20°F airentering outdoor coil, the integrated heating capacity is17,400 Btuh. (Select integrated heating capacity value sincedeductions for outdoor-coil frost and defrosting have alreadybeen made. No correction is required.) The required heating capacity is 25,000 Btuh. Therefore,7,600 Btuh (25,000 – 17,400) additional electric heat isrequiredDetermine additional electric heat capacity in kw. 7,600 Btuh3414 Btuh/kW
Enter the Electric Heater table on page 5 for 208/230 v,single-phase, unit. The 5-kw heater at 240v most closelysatisfies the heating required. To calculate kw at 230v,multiply the heater kw by multiplication factor 0.92 found inthe Multiplication Factors table on page 17.5 kw x 0.92 = 4.6 kw4.6 kw x 3414 Btuh/kw = 15,704 BtuhTotal unit heating capacity is 33,104 Btuh (17,400 + 15,704).
IV DETERMINE FAN SPEED AND POWER REQUIREMENTS AT DESIGN CONDITIONS.
Before entering the air delivery tables, calculate the totalstatic pressure required. From the given, Filter PressureDrop Table, Electrical Heat Pressure Drop table, and theWet Coil Pressure Drop table, find:External static pressure 0.200 in. wgFilter 0.130 in. wgElectric Heaters 0.000 in. wg
Total static pressure 0.330 in. wg
Enter the table for Wet Coil Air Delivery — (230 and 460v.)At 0.33 in. wg external static pressure and high speed, themotor delivers 1238 cfm, and 605 watts.
V SELECT UNIT THAT CORRESPONDS TO POWERSOURCE AVAILABLE.
The Electrical Data table shows that the unit is designed tooperate at 208/230-1-60.
LEGENDEwb – Entering Wet-BulbkW – Total Unit Power InputSHC – Sensible Heat Capacity (1000 Btuh)TC – Total Capacity (1000 Btuh) (net)
NOTES:1. Ratings are net; they account for the effects of the evaporator-fan motor power and heat.2. Direct interpolation is permissible. Do not extrapolate.3. The following formulas may be used:
sensible capacity (Btuh)t = t �ldb edb 1.10 x cfm
t = Wet-bulb temperature corresponding to enthalpy of air leavinglwbevaporator coil (h )lwb
total capacity (Btuh)h = h �lwb ewb 4.5 x cfm
Where: h = Enthalpy of air entering evaporator coilewb
PERFORMANCE DATA (CONT)
ECONOMIZER 1-IN. FILTER PRESSURE DROP (in. wg)
MULTIPLICATION FACTORS
Example: 15.0 kw (at 240v) heater on 208v= 15.0 (.75 mult factor)= 11.25 capacity at 208v
4. The SHC is based on 80°F edb temperature of air entering evaporatorcoil. Below 80°F edb, subtract (corr factor x cfm) from SHC.Above 80°F edb, add (corr factor x cfm) to SHC.Correction Factor = 1.10 x (1 + BF) x (edb + 80).
5. Integrated capacity is maximum (instantaneous) capacity less the effectof frost on the outdoor coil and the heat required to defrost it.
NOTES:1. Ratings are net; they account for the effects
of the evaporator-fan motor power and heat.2. Direct interpolation is permissible. Do not extrapolate.3. The following formulas may be used:
STANDARD 602B UNIT 024-060—WET COIL AIRFLOW DELIVERY
*Air delivery values are based on operating voltage of 230 v or 460 v, wet coil, without filter or electric heater. Deduct filter and electric heater pressuredrops to obtain static pressure available for ducting.NOTES: 1. Do not operate the unit at a cooling ariflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator coil frosting mayoccur at airflows below this point.2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended.3. Deduct 10% for 208v.
Based on Indoor Entering Air of 70 F and Rated CFM
Condensate trap — A 2-in. condensate trap must be fieldsupplied.
Ductwork — Secure downflow discharge ductwork to roofcurb. For horizontal discharge applications, attachductwork to unit with flanges.To convert a unit to downflow discharge — Units areequipped with factory-installed inserts in the downflowopenings. Remove the inserts similar to removing an
electrical knock-out. Leave on duct covers to seal thehorizontal discharge openings in the unit. Units installed inhorizontal discharge orientation do not require ductcovers.Maximum cooling airflow — To minimize the possibilityof condensate blow-off from the evaporator, airflowthrough the units should not exceed 450 cfm/ton.Minimum cooling airflow — The minimum coolingairflow is 350 cfm/ton.Minimum cooling ambient operating temperature — Allstandard units have a minimum ambient operatingtemperature of 40°F. Units with the ICM Indoor Motor FIOPhave a minimum cooling outdoor operating temperature of55°F. With accessory low ambient temperature kit, unitscan operate at temperatures down to 0°F.Maximum operating outdoor air temperature —Maximum outdoor operating air temperature for cooling is125°F.
APPLICATION DATA
1” MIN.
2” MIN.
TRAPOUTLET
—22—
ELECTRICAL DATA
UNITSIZE602B
V-PH-Hz
VOLTAGERANGE COMPRESSOR OUTDOOR
FAN MOTORINDOOR
FAN MOTOR ELECTRIC HEATSINGLE POINT
POWER SUPPLY
Min Max RLA LRA FLA FLA Nominal kw* FLA UNIT MCAMAX FUSE
or CKT. BKR. MOCP
024 208/230-1-60 187 253 13.5 61.0 0.9 2.0
—/—3.8/5.05.4/7.27.5/10.0
—/—18.1/20.825.9/30.036.1/41.7
19.8/19.842.3/45.852.2/57.364.9/71.9
30/3050/5060/–—
——
–/7070/80
030
208/230-1-60 187 253 15.9 73.0 0.9 2.1
—/—3.8/5.05.4/7.27.5/10.011.3/15.0
—/—18.1/20.825.9/30.036.1/41.754.2/62.5
22.9/22.945.4/48.955.3/60.468.0/75.090.6/101.0
30/3050/50
———
——
70/7070/80
100/110
208/230-3-60 187 253 10.9 63.0 0.9 2.1
—/—3.8/5.07.5/10.011.3/15.0
—/—10.4/12.020.8/24.131.3/36.1
16.6/16.629.7/31.742.7/46.755.7/61.7
20/2035/3545/5060/–
———
–/70
036
208/230-1-60 187 253 16.9 83.0 1.6 4.1
—/—3.8/5.05.4/7.27.5/10.011.3/15.0
—/—18.1/20.825.9/30.036.1/41.754.2/62.5
26.8/26.849.4/52.959.2/64.372.0/78.994.5/105.0
40/4060/60
———
——
70/8080/80
100/110
208/230-3-60 187 253 12.2 77.0 1.6 4.1
—/—3.8/5.07.5/10.011.3/15.0
—/—10.4/12.020.8/24.131.3/36.1
21.0/21.034.0/36.047.0/51.060.0/66.1
30/3040/4050/60
—
———
70/70
460-3-60 414 506 5.8 35.0 0.9 2.0
—/—5.010.015.0
—/—6.012.018.0
10.217.725.232.7
15203035
————
042
208/230-1-60 187 253 22.4 105.0 0.9 4.1
—/—3.8/5.05.4/7.27.5/10.011.3/15.015.0/20.0
—/—18.1/20.825.9/30.036.1/41.754.2/62.572.2/83.3
33.0/33.055.6/59.065.4/70.578.1/85.1
100.7/111.1123.3/137.2
40/4060/60
————
——
80/8090/90
110/125125/150
208/230-3-60 187 253 15.4 88.0 0.9 4.1
—/—5.010.015.020.0
—/—10.4/12.020.8/24.131.3/36.141.6/48.0
24.3/24.337.3/39.350.3/54.363.3/69.476.2/84.2
30/3050/5060/60
——
———
70/7080/90
460-3-60 414 506 7.3 39.0 0.9 2.0
—/—5.010.015.0
15.0/20.0
—/—6.012.018.024.1
12.019.527.134.642.1
1525303545
—————
048
208/230-1-60 187 253 21.3 109.0 1.6 4.1
—/—3.8/5.05.4/7.27.5/10.011.3/15.015.0/20.0
—/—18.1/20.825.9/30.036.1/41.754.2/62.572.2/83.3
32.3/32.354.9/58.464.7/69.877.5/84.4
100.0/110.5122.6/136.5
40/40—————
—70/7080/8080/90
110/125125/150
208/230-3-60 187 253 14.7 91.0 1.6 4.1
—/—3.8/5.07.5/10.011.3/15.015.0/20.0
—/—10.4/12.020.8/24.131.3/36.141.6/48.0
24.1/24.137.1/39.150.1/54.163.2/69.276.0/84.0
30/3045/5060/60
——
———
70/7080/90
460-3-60 414 506 7.2 46.0 0.9 2.0
—/—5.010.015.020.0
—/—6.012.018.024.1
11.919.426.934.542.0
1525303545
—————
060
208/230-1-60 187 253 27.6 158.0 1.5 6.2
—/—3.8/5.05.4/7.27.5/10.011.3/15.015.0/20.0
—/—18.1/20.825.9/30.036.1/41.754.2/62.572.2/83.3
42.2/42.264.8/68.274.6/79.787.3/94.3
109.9/120.3132.5/146.4
50/50—————
—80/8090/90
100/110110/125150/150
208/230-3-60 187 253 19.2 137.0 1.5 6.2
—/—3.8/5.07.5/10.011.3/15.015.0/20.0
—/—10.4/12.020.8/24.131.3/36.141.6/48.0
31.7/31.744.7/46.757.8/61.870.8/76.883.7/91.7
40/4050/60
———
——
70/7080/8090/100
460-3-60 414 506 9.0 62.0 0.9 3.2
—/—5.010.015.020.0
—/—6.012.018.024.1
15.422.930.437.945.4
2030354050
—————
See Legend and Notes on p. 23
—23—
602B WITH ICM FIOP ELECTRICAL DATA
UNITSIZE602B
V-PH-Hz
VOLTAGERANGE COMPRESSOR OUTDOOR
FAN MOTORINDOOR
FAN MOTOR ELECTRIC HEATSINGLE POINT
POWER SUPPLY
Min Max RLA LRA FLA FLA Nominal kw* FLA UNIT MCAMAX FUSE
NOTES:1. In compliance with NEC (National Electrical Code) requirements
for multimotor and combination load equipment (refer to NECArticles 430 and 440), the overcurrent protective device for theunit shall be Power Supply fuse . The CGA (Canadian GasAssociation) units may be fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. If other than60 C wire is used, or if length exceeds wire length in table,determine size from NEC.
3. Unbalanced 3-Phase Supply VoltageNever operate a motor where a phase imbalance in supply volt-age is greater than 2%. Use the following formula to determinethe percentage of voltage imbalance.
% Voltage imbalance
max voltage deviation from average voltage= 100 xaverage voltage
EXAMPLE: Supply voltage is 460-3-60.AB = 452 vBC = 464 vAC = 455 v
452 + 464 + 455Average Voltage =3
1371=3
= 457
Determine maximum deviation from average voltage.(AB) 457(BC) 464(AC) 457
Maximum deviation is 7 v.
Determine percent of voltage imbalance.7% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below themaximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance ismore than 2%, contact your local electric utility companyimmediately.
®
*Heater capacity (KW) based on heater voltage of 208v, 240v, & 480v.If power distribution voltage to unit varies from rated heater voltage,heater KW will vary accordingly.
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TYPICAL WIRING SCHEMATIC — 208/230-1-60 SHOWN
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TYPICAL WIRING SCHEMATIC — 208/230-3-60 SHOWN
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TYPICAL WIRING SCHEMATIC — 460-3-60 SHOWN
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ICM FIOP WIRING SCHEMATIC — 208/230-1-60 SHOWN
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SEQUENCE OF OPERATION
When power is supplied to unit, the transformer (TRAN) isenergized.
On units with crankcase heater, heater is also energized.
Cooling — With the thermostat subbase in the cooling position,the thermostat makes circuit R-O. This energizes the reversingvalve solenoid (RVS) and places the unit in standby condition forcooling.
As the space temperature rises, the thermostat makes, closingcircuit R-Y. A circuit is made to contactor (C), starting thecompressor (COMP) and outdoor-fan motor (OFM). Circuit R-Gis made at the same time, energizing the indoor-fan relay (IFR)and starting the indoor-fan motor (IFM) after a 1-second delay†.
When the thermostat is satisfied, contacts open, deenergizing C.The COMP and OFM stop, and the IFM stops after a 60 sec timedelay†.
Heating — On a call for heat, thermostat makes circuits R-Y andR-G.
A circuit is made to C, starting COMP and OFM. Circuit R-G alsois completed, energizing IFR and starting IFM after a 1-secdelay†.
Should room temperature continue to fall, circuit R-W is madethrough second-stage thermostat bulb. If optional electric heatpackage is used, a relay is energized, bringing on first bank ofsupplemental electric heat. When thermostat is satisfied,contacts open, deenergizing contactor and relay; motors and
heaters deenergize. The IFM is controlled by a time-delay relaythat keeps the fan on for 60 sec†.
Defrost — Defrost board (DB) is a time and temperature control,which includes a field-selectable time period (Dip switch 1 and 2on the board) between checks for defrost (30, 60, 90, or 120minutes). Electronic timer and defrost cycle start only whencontactor is energized and defrost thermostat (DFT) is closed.
The defrost board is also equipped with a 3rd dip switch forselecting Quiet Shift operation. The Quiet Shift operation turnscompressor off at defrost initiation and termination. Unit isfactory shipped with quiet shift turned off.
Defrost mode is identical to cooling mode, except outdoor fanmotor stops and a bank of optional electric heat turns on to warmair supplying the conditioned space.
NOTES:
1. † Standard PSC indoor motor.
2. Compressor time delay occurs through the defrost controlboard.
3. Defrost control board has built in 5 minute compressor delay:once the compressor has started and then stopped, it cannot berestarted again until 5 minutes have elapsed.
4. ICM FIOP Models only — The indoor blower operation with acall for fan operation (G) in either cooling or heat pump heating(compressor) modes will perform by the on/off delay profileselected at start up on the Easy Select™ board.
CONTROLS
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PACKAGED HEAT PUMP UNITS CONSTANT VOLUME APPLICATION
HVAC GUIDE SPECIFICATIONSSIZE RANGE: 2 TO 5 TONS, NOMINAL COOLINGBRYANT MODEL NUMBER: 602BPART 1—GENERALSYSTEM DESCRIPTION
Outdoor rooftop or ground mounted, heat pump unit utiliz-ing a hermetic compressor for heating and cooling dutyand optional electric heating. Unit shall discharge supplyair vertically or horizontally as shown on contract draw-ings. Outdoor fan/coil section shall have a draw-thru de-sign with vertical discharge for minimum sound levels.
QUALITY ASSURANCEA. Unit shall be rated in accordance with ARI Standards 210/
240-94 and 270-95.B. Unit shall be designed in accordance with UL Standard
1995.C. Unit shall be manufactured in a facility registered to ISO
9001 manufacturing quality standard.D. Unit shall be UL listed and c-UL certified as a total package
for safety requirements.E. Roof curb shall be designed to conform to NRCA Stan-
dards.F. Insulation and adhesives shall meet NFPA 90A require-
ments for flame spread and smoke generation.G. Cabinet insulation shall meet ASHRAE Standard 62P.
DELIVERY, STORAGE AND HANDLINGUnit shall be stored and handled per manufacturer’s rec-ommendations.
PART 2 — PRODUCTSEQUIPMENT
A. General:Factory-assembled, single-piece, heat pump unit. Con-tained within the enclosure shall be all factory wiring, pip-ing, controls, refrigerant charge (R-410A), and specialfeatures required prior to field start-up.
B. Unit Cabinet:1. Unit cabinet shall be constructed of phosphated, zinc-
coated, pre-painted steel capable of withstanding 500hrs of salt spray.
2. Normal service shall be through a single removablecabinet panel.
3. The unit shall be constructed on a rust proof basepanthat has an externally trapped, integrated sloped drainpan.
4. Indoor fan compartment top surface shall be insulatedwith a minimum 1/2-in. thick, flexible fiberglass insula-tion, coated on the air side and retained by adhesiveand mechanical means. The indoor wall sections willbe insulated with a minimum semi-rigid foil-faced boardcapable of being wiped clean. Aluminum foil-faced fi-berglass insulation shall be used in the entire indoor aircavity section.
5. Unit shall have a field-supplied condensate trap.C. Fans:
1. The indoor fan shall be 3-speed, direct-drive, or factoryinstalled optional variable speed motor and control, as
shown on equipment drawings.2. Fan wheel shall be made from steel, and shall be dou-
ble-inlet type with forward curved blades with corrosionresistant finish. Fan wheel shall be dynamically bal-anced.
3. Outdoor fan shall be direct drive propeller type with alu-minum blades riveted to corrosion resistant steel spi-ders, be dynamically balanced, and discharge airvertically.
D. Compressor:1. Fully hermetic compressors with factory-installed vibra-
tion isolation.2. Scroll compressors shall be standard on all units.3. Compressor Protection:
Defrost control shall protect compressor by preventing“short cycling.”
E. Coils:Indoor and outdoor coils shall have aluminum plate finsmechanically bonded to seamless copper tubes with alljoints brazed. (Copper/copper and vinyl-coated construc-tion available as option.) Tube sheet openings shall bebelled to prevent tube wear.
F. Refrigerant Metering Device:Refrigerant metering device shall be of the single bodyfixed orifice feed type.
G. Filters:Filter section shall consist of field-installed, throwaway, 1-in. thick fiberglass filters of commercially available sizes.
H. Controls and Safeties:1. Unit controls shall be complete with a self-contained
low voltage control circuit.2. Units shall incorporate an internal compressor protec-
tor that provides reset capability.3. Unit shall provide High and Low/Loss-of-Charge Pres-
1. Unit shall be capable of starting and running at 125°Fambient outdoor temperature, exceeding maximumload criteria of ARI Standard 240-94.
2. Compressor with standard controls shall be capable ofoperation down to 40° F ambient outdoor temperature incooling (55°F with ICM FIOP) and -10°F in heating.
3. Unit shall be provided with 30 or 60-sec fan time delayafter the thermostat is satisfied with standard indoorblower motor.
4. On ICM FIOP—Fan on/off delay profile is selected (forcompressor modes) on the Easy Select™ board.
J. Electrical Requirements:All unit power wiring shall enter the unit cabinet at a singlelocation.
K. Motors:1. Compressor motors shall be of the refrigerant-cooled
type with line-break thermal and current overload pro-tection.
2. All fan motors shall have permanently lubricated bear-ings, and inherent, automatic reset, thermal overloadprotection.
3. Outdoor fan motor shall be totally enclosed.
GUIDE SPECIFICATIONS
—30—
L. Grille1. Louvered Grille:
Louvered grille shall be standard on all units. M. Special Features Available
1. ICM FIOP:Integral control motor for indoor blower shall be a fac-tory installed option for optimizing comfort levels in alloperating modes and increasing system efficiency.
2. Coil Options:Shall include factory-installed optional copper/cop-per and vinyl-coated refrigerant coils.
3. Economizer:a. Economizer controls capable of providing free cool-
ing using outside air.b. Equipped with low leakage dampers not to exceed
3% leakage, at 1.0 in. wg pressure differential.c. Spring return motor shuts off outdoor damper on
power failure.4. Flat Roof Curb:
Curbs shall have seal strip and a wood nailer for flash-ing and shall be installed per manufacturer’s instruc-tions.
5. Manual Outdoor Air Damper:Package shall consist of damper, birdscreen, and rain-hood which can be preset to admit outdoor air for year-round ventilation.
6. Thermostat:To provide for two-stage heating and one-stage coolingin addition manual or automatic changeover and indoorfan control.
7. Low Ambient Package:Shall consist of a solid-state control and outdoor coiltemperature sensor for controlling outdoor fan motoroperation, which shall allow unit to operate down to0° F outdoor ambient temperature in cooling.
8. Filter Rack Kit:Shall provide filter mounting for downflow applications.
9. Square-To-Round Duct Transitions:Shall have the ability to convert the supply and returnopenings from rectangular to round. (024-048 only)
10. Crankcase Heater:Shall provide anti-floodback protection for low-loadcooling applications. (Standard on 042-060 sizes)
11. Electric heaters:a. Electric heater shall be available as a field-installed
option.b. Heater elements shall be open wire type, adequately
supported and insulated with ceramic bushings.c. Electric heater packages must provide single point
power connection capability.12. Compressor Hard start kit:
Shall be available to give a boost to the compressormotor at each start-up.
GUIDE SPECIFICATIONS (CONT)
—31—
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UNIT MUST BE INSTALLED IN ACCORDANCEWITH INSTALLATION INSTRUCTIONS
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