OmegaAir™ Series Dedicated Outside Air Systems (DOAS)
Engineering GuideEffective September 2017
Vertical and HorizontalWater-Cooled and Air-Cooled
Engineering Guide
OmegaAir™
2Subject to change without notice. 80.10-TD (0917)
Product Features �����������������������������������������������������������������3Options ��������������������������������������������������������������������������������4
Air-Cooled Indoor Ducted Condenser Section ��������������4Air-Cooled Outdoor Propeller Fan Condenser ��������������4
Physical Data - OmegaAir™ Section�������������������������������5–7Physical Data ����������������������������������������������������������������������8Air-Cooled Indoor Ducted Condenser ���������������������������������8Physical Data�����������������������������������������������������������������������9Air-Cooled Outdoor Propeller Fan Condenser ��������������������9Water-Cooled Performance Data (a) (b) (c) ����������������10–11
Standard Scroll Compressor ���������������������������������������10Air-Cooled Performance Data (a) (b)���������������������������������12
Indoor Ducted Condenser – Standard Scroll Compressor(s) �������������������������������������������������������������������12
Outdoor Propeller Fan Condenser – Standard Scroll Compressor(s) �������������������������������������������������������������������12Air-Cooled Performance Data (a) (b)���������������������������������13
Indoor Ducted Condenser – Optional Digital Scroll Compressor(s) �������������������������������������������������������������������13Air-Cooled Performance Data (a) (b)���������������������������������14
Outdoor Propeller Fan Condenser – Optional Digital Scroll Compressor(s) ���������������������������������������������������������14Blower Performance Data (a) (b) (c) (d) ����������������������������15
OmegaAir - Horizontal / Vertical ����������������������������������15Blower Performance Data (a) (b) (c) (d) ����������������������������16
Indoor Ducted Condenser �������������������������������������������16Hot Water Coil Performance (a) (b) �����������������������������������17Steam Coil Performance ���������������������������������������������������17Electrical Data �������������������������������������������������������������������18
Cooling Only: ���������������������������������������������������������������18Cooling with Electric Heat: ������������������������������������������18
Electrical Data �������������������������������������������������������������19–20Scroll Compressor RLA: ����������������������������������������������20Evaporator Motor FLA: ������������������������������������������������20Outdoor Propeller Fan Condenser Motor FLA: �����������20Digital Scroll Compressor RLA: �����������������������������������20Indoor Ducted Condenser Motor FLA: ������������������������20
Electrical Heat Data �����������������������������������������������������������21Electrical Data - OmegaAir™ Section (a) (b)���������������22–24Electrical Data - Air-Cooled Cond� Section (a) (b) (c) ��25–26Electrical Data - Air-Cooled Outdoor Propeller Fan Condenser �������������������������������������������������������������������������27Water-Cooled Piping Arrangements ����������������������������������28Dimensions - Vertical ���������������������������������������������������������29Dimensions - Horizontal ����������������������������������������������30–31Indoor Ducted Condenser Dimensions������������������������������32Indoor Ducted Condenser Sections�����������������������������������33
Optional Air Paths ��������������������������������������������������������33Outdoor Propeller Fan Condenser ������������������������������������34Service Clearances - Plan View ����������������������������������������35Miscellaneous Application Data �����������������������������������������35OmegaAir Section �������������������������������������������������������������36Basic Model Designation ���������������������������������������������������36Air-Cooled Indoor Ducted Condenser �������������������������������37Basic Model Designation ���������������������������������������������������37Air-Cooled Outdoor Propeller Fan Condenser ������������������38Basic Model Designation ���������������������������������������������������38
Contents
Engineering Guide
OmegaAir™
3Subject to change without notice. 80.10-TD (0917)
• Vertical or Horizontal, Water-Cooled Packaged Unit• Vertical or Horizontal, Air-Cooled with Remote Air-Cooled
Condenser Section• 1 – 15 Nominal Tons• 150 to 3000 CFM• R-410a Refrigerant• Functionally run tested at the factory• Vertical Cabinet – galvanized metal with powder coated
finish• Horizontal Cabinet – galvanized metal• 3 Cabinet Sizes• Insulation – 2” Thermal / Acoustic Fiberglass (R-8)• Fits through 32” doorway• Vertical Choice of Discharge Air Path: Top or Straight-
through• Horizontal Choice of Discharge Air Path: Front, Top or
Bottom• Aluminum Fin / Copper Tube Evaporator Coil• Dual-circuited coil utilizing interlaced evaporator coil
circuitry for excellent part load performance (4 to 15 Ton models)
• Reciprocating Compressor (1-Ton)• Heavy Duty Scroll Compressors (2-Ton and larger)• Co-Axial Water-Cooled Condenser w/ 2-Way, 150 psig
Water Regulating Valve(s)• OA3 Microprocessor Controller w/ Wall Mounted Display
and 100’ of Cable (Includes Outdoor Air Temp / Humid Sensor, Supply Air Temp Sensor and Space Temp / Humid Sensor)
• Remote On/Off Terminal Block• Fire / Smoke Detector Terminal Blocks (devices optional)• Front Access to All Components in Vertical configuration• Compressor and all electrical components are located out
of the air stream in a separate compartment for access to these components while the unit is operating
• Fast, Easy Connections for High/Low Voltage, water and condensate removal connections
• High and Low Pressure Switches• Air Flow Proving Switch• Single-point power supply• Modulating Hot Gas Reheat• Split Systems include Resealable (with or without electric
heat) Fittings• Aluminum Fin / Copper Tube Hot Gas Reheat Coil
positioned horizontally (perpendicular to the evaporator coil) in Vertical configuration
• Belt-Drive Blowers with Adjustable Pulleys for ease of Field Adjustment to obtain air balance
• Sealed / Permanently lubricated motor bearings• IAQ Sloped Stainless Steel Drain Pan• Internally Mounted Condensate Trap in Vertical
configuration• MOP Type Thermal Expansion Valves• Filter Driers• High and Low Side Schrader Refrigerant Access Fittings• Hot Gas Bypass on each circuit• 2” Return Air Filter Frame• 2”, MERV 8 Pleated Throwaway Filters
Product Features
The OmegaAir System of 100% outside air units are available as water-cooled packaged units or air-cooled matched with a remote air-cooled condenser section�
Systems are designed for indoor application in Vertical or Horizontal configuration.
Engineering Guide
OmegaAir™
4Subject to change without notice. 80.10-TD (0917)
Options
• Digital Scroll Compressor(s)• Hot Water & Steam Coils• Electric Heat w/Single Point Power• Motor Upgrades for High Static Applications• Water Regulating Valves available for 350 psig and/or
3-way applications (shipped loose, field installed)• Electronic Head Pressure Control Valves (shipped loose,
field installed)• Elastomeric Foam Insulation (evaporator section only)• Double Wall Construction• Protective Coil Coating• 4” Filter Frames• MERV 11 and 13 Filters• Condensate Pump (External), 115v required• Non-Fused Disconnect• Unit Mounted Display & Keypad• BMS Serial Communication Board - BACnet™ (MS/TP or
Ethernet), ModBus®, LonWorks®• Firestat• Smoke Detector• Dry Contacts / Terminal Blocks
» Remote Alarm Output » Outdoor Air Damper Open/Close » Outdoor Air Damper End Switch
• Drain Pan Overflow Switch• Phase Relay for indication of Phase Reversal or Loss of
Phase (3-phase units only)• Freezestat• Dirty Filter Switch• Hot Water Coil Valves• Water Entrance on Left (Vertical Configuration)
Air-Cooled Indoor Ducted Condenser Section
• Upgraded Motor• Pillow Block Bearings• Coated Drain Pan• Protective Coil Coating• Painted Cabinet• Outdoor Modification Kit• Acoustic Foam Insulation• Double Wall, Construction• Condenser Filter Rack w/ 2”, Merv 8 Pleated
Throwaway Filters• Sheet Metal/Cabinet Changes• Non-Fused Disconnect• Refrigerant Interconnect Kits
Air-Cooled Outdoor Propeller Fan Condenser
• Multi-Contactor with Fan Cycling Package (low ambient down to 40°F)
• Flooded Condenser Package (low ambient down to 20°F)• Multi-Contactor with Vari-Speed (low ambient down to
20°F)• Refrigerant Interconnect Kits
Engineering Guide
OmegaAir™
5Subject to change without notice. 80.10-TD (0917)
Physical Data - OmegaAir™ Section
Tons 1 1-1/2 2 2-1/2 3Evaporator Supply Air (a) CFM Range 134 - 266 167 - 333 237 - 472 284 - 566 334 - 666
Evaporator BlowerSize 7 X 5 7 X 7Qty. 1
Evaporator Motors (b)Std. HP @ 0.25” ESP 1/4Opt. HP @ 1.0” ESP N/A 1/4 (c) N/A 1/2
Evaporator CoilRows 6Face Area (Ft.2) 0.67 0.83 1.18 1.42 1.67FPI 10
Filter
Type Pleated ThrowawayQty 1Size (in.) Vertical – 12 x 24 x 2, Horizontal – 18 x 24 x 2Efficiency MERV 8
CompressorType Recip. ScrollQty 1
Water Regulating Valve (d)Size (in.) 3/8 1/2 3/4Qty 1
Water-Cooled Condenser (e)GPM 3 4.5 6 7.5 9Press. Drop (Ft. H2O) 5.7 6.3 13.3 10.6 8.9
Weight (Net Operating) (f)
Air-Cooled – Vert. 507 510 517 539 552Water-Cooled – Vert. 517 524 534 562 575Air-Cooled – Horiz. 422 425 433 455 467Water-Cooled – Horiz. 432 438 448 476 490
Available Voltages208/230-1-60 • • • • •208/230-3-60 • • • •460-3-60 • • • •
(a) Air flow performance may require other than standard drive components.(b) Motor Size based on 200 CFM/ton with no options� Run selection on UCA Select to verify proper motor size based on actual unit
configuration.(c) Drive set upgrade only�(d) Standard water regulating valve is 2-way, 150 psig. Optional valve configurations available in 3-way and 350 psig. Optional valves
ship loose for field installation.(e) Pressure Drop is for co-axial condenser only and does not include water regulating valve(s)�(f) Net operating weight is for basic unit only� Options will add weight�
Engineering Guide
OmegaAir™
6Subject to change without notice. 80.10-TD (0917)
Physical Data - OmegaAir™ Section
Tons 4 5 6 7 8Evaporator Supply Air (a) CFM Range 445 – 888 567 – 1133 667 - 1333 756 - 1511 977 - 1952
Evaporator BlowerSize 10 X 8Qty 1
Evaporator Motors (b)Std. HP @ 0.25” ESP 1/4 1/3 1/2 3/4 (H), 1/2 (V)Opt. HP @ 1.0” ESP 1/2 3/4 1
Evaporator CoilRows 6Face Area 2.22 2.83 3.33 3.78 4.88FPI 10
Filter
Type Pleated ThrowawayQty 2Size (in.) Vertical – 20 x 25 x 2, Horizontal – 20 x 24 x 2Efficiency MERV 8
CompressorType ScrollQty 2 (g)
Water Regulating Valve (d)Size (in.) 1/2 3/4Qty 2
Water-Cooled Condenser (e)GPM 12 15 18 21 24Press. Drop (Ft. H2O) 13.1 10.3 8.7 13.6 12.6
Weight (Net Operating) (f)
Air-Cooled – Vert. 728 769 777 812 851Water-Cooled – Vert. 767 814 828 875 914Air-Cooled – Horiz. 643 669 692 731 766Water-Cooled – Horiz. 692 737 745 782 821
Available Voltages208/230-1-60 • • N/A N/A N/A208/230-3-60 • • • • •460-3-60 • • • • •
(a) Air flow performance may require other than standard drive components(b) Motor Size based on 200 CFM/ton with no options� Run selection on UCA Select to verify proper motor size based on actual unit
configuration.(c) Drive set upgrade only�(d) Standard water regulating valve is 2-way, 150 psig. Optional valve configurations available in 3-way and 350 psig. Optional valves
ship loose for field installation.(e) Pressure Drop is for co-axial condenser only and does not include water regulating valve(s)�(f) Net operating weight is for basic unit only� Options will add weight�(g) 4 and 5 Ton units with optional digital scroll compressors are available as single circuit only�
Engineering Guide
OmegaAir™
7Subject to change without notice. 80.10-TD (0917)
Physical Data - OmegaAir™ Section
Tons 9 10 11 12 13.5 15Evaporator Supply Air (a) CFM Range 1039 - 2077 1134 - 2266 1334 - 2666 1334 - 2666 1467 - 2933 1800 - 3600
Evaporator BlowerSize 12 X 9Qty 1
Evaporator Motors (b)Std. HP @ 0.25” ESP 1/2 3/4 1 1-1/2Opt. HP @ 1.0” ESP 3/4 1 1-1/2 2
Evaporator CoilRows 6Face Area 5.19 5.67 6.67 6.67 7.33 9.0FPI 10
Filter
Type Pleated ThrowawayQty 3Size (in.) Vertical – 20 x 25 x 2, Horizontal – 20 x 25 x 2Efficiency MERV 8
CompressorType ScrollQty 2
Water Regulating Valve (d)Size (in.) 1 1-1/4Qty 2
Water-Cooled Condenser (e)GPM 27 30 33 36 40 45Press. Drop (Ft. H2O) 7.7 9.6 13.0 14.9 14.8 17.8
Weight (Net Operating) (f)
Air-Cooled – Vert. 1062 1104 1116 1126 1157 1256Water-Cooled – Vert. 1137 1179 1208 1218 1273 1372Air-Cooled – Horiz. 877 917 929 941 974 1080Water-Cooled – Horiz. 960 1002 1020 1035 1086 1186
Available Voltages208/230-1-60 N/A N/A N/A N/A N/A N/A208/230-3-60 • • • • • •460-3-60 • • • • • •
(a) Air flow performance may require other than standard drive components.(b) Motor Size based on 200 CFM/ton with no options� Run selection on UCA Select to verify proper motor size based on actual unit
configuration.(c) Drive set upgrade only�(d) Standard water regulating valve is 2-way, 150 psig. Optional valve configurations available in 3-way and 350 psig. Optional valves
ship loose for field installation.(e) Pressure Drop is for co-axial condenser only and does not include water regulating valve(s)(f) Net operating weight is for basic unit only� Options will add weight�
Engineering Guide
OmegaAir™
8Subject to change without notice. 80.10-TD (0917)
Physical Data Air-Cooled Indoor Ducted Condenser
Condenser Model BCSP12 BCSP18 BC2 BC3 BC4G*AS BC5G*ASOmegaAir Tons 1 1-1/2 2 2-1/2, 3 4 (a) 5 (a)
Condenser AirCFM 700 850 1600 2000 2500 3300Std. ESP 0.25”Max. ESP 2.0” 1.7” 2.0” 1.9”
Condenser BlowerSize 7 x 7 12 x 9Qty 1
Condenser Motors (b)Std. HP @ 0.25” ESP 1/2 3/4 1 1-1/2 2Opt. HP @ 1.5” ESP 3/4 3/4 1 1-1/2 2 3
Condenser CoilRows 3 4Face Area 2.6 4.4FPI 14 12
Weight(Net Operating) (d) Air-Cooled 275 285 365 385 550 595
Available Voltages208/230-1-60 • • • • • N/A208/230-3-60 N/A • • • • •460-3-60 N/A • • • • •
Condenser Model BC4G*A BC5G*A BC6 BC8 BC10 BC12 BC15OmegaAir Tons 4 (dual) 5 (dual) 6 7, 8 9, 10 11, 12 13.5, 15
Condenser AirCFM 2500 3300 3800 4250 6000 6000 7500Std. ESP 0.25”Max. ESP 2.0” 1.9” 0.6”
Condenser BlowerSize 15 x 9 15 x 15Qty 1
Condenser Motors (b)Std. HP @ 0.25” ESP 1-1/2 2 3 7-1/2 10Opt. HP @ 1.5” ESP 2 3 5 (c) N/A
Condenser CoilRows 6 8Face Area 6.4 7.3FPI 12
Weight(Net Operating) (d) Air-Cooled 590 650 665 750 795 820 1005
Available Voltages208/230-1-60 • • N/A N/A N/A N/A N/A208/230-3-60 • • • • • • •460-3-60 • • • • • • •
(a) Single circuit condenser is only matched with a single circuit 4 or 5 ton OmegaAir unit with the optional digital scroll compressor�(b) Motor Size based on standard CFM/ton with no options� Run selection on UCA Select to verify proper motor size based on actual
unit configuration.(c) Drive set upgrade only�(d) Net operating weight is for basic unit only� Options will add weight�
Engineering Guide
OmegaAir™
9Subject to change without notice. 80.10-TD (0917)
Physical DataAir-Cooled Outdoor Propeller Fan Condenser
Condenser Model PBC2 PBC3 PBC4 PBC5 PBC7 (a) PBC10 (a)OmegaAir Tons 1 1-1/2 2 2-1/2, 3 4 5, 6
Propeller FanQTY. 1 1 2Motor HP 1/3 1/2 eachDiameter (in.) 20 24
Condenser CoilRows 1 2 2 3 3 2Face Area 6.3 11.1 22.2FPI 8 12 8
Weight(Net Operating) (b) Air-Cooled 115 125 135 225 270 400
Available Voltages208/230-1-60 • • • • • (c)208/230-3-60 N/A • • • • •460-3-60 N/A • • • • •
Condenser Model PBC15 PBC18 PBC21 PBC23 PBC28 PBC31OmegaAir Tons 7, 8 9 10, 11 12 13.5 15
Propeller FanQTY. 2 3 4Motor HP 1/2 eachDiameter (in.) 24
Condenser CoilRows 3 2 3Face Area 22.2 33.3 44.4FPI 10 9 8 10 8 10
Weight(Net Operating) (b) Air-Cooled 475 580 650 710 850 935
Available Voltages208/230-1-60 N/A N/A N/A N/A N/A N/A208/230-3-60 • • • • • •460-3-60 • • • • • •
(a) Single and Dual circuits available�(b) Net operating weight is for basic unit only� Options will add weight�(c) Single phase is available only on the 5 Ton OmegaAir unit�
Engineering Guide
OmegaAir™
10Subject to change without notice. 80.10-TD (0917)
Water-Cooled Performance Data (a) (b) (c)
Standard Scroll Compressor
Tons CFMEntering Air Temp. (°F) Cooling (Btuh) Leaving Air Temp. (°F)
GPM Leaving Water Temp. (°F)
DB WB Total Sensible DB WB1 220
95 78
17,545 9,700 55.7 55.6 3 98.41-1/2 333 23,360 13,300 59.6 59.1 4.5 97.4
2 350 28,780 15,730 54.6 54.6 6 96.72-1/2 450 36,360 19,790 55.3 55.3 7.5 96.5
3 510 41,980 22,840 54.8 54.8 9 95.94 710 57,971 31,510 55.1 55.1 12 95.95 900 72,530 39,561 55.3 55.3 15 96.66 1000 82,660 44,940 54.5 54.5 18 96.47 1250 99,390 54,480 55.8 55.7 21 96.08 1450 119,420 64,820 54.7 54.6 24 96.89 1550 126,820 69,190 54.8 54.8 27 96.7
10 1750 143,220 78,140 54.9 54.9 30 96.711 2000 160,350 87,780 55.5 55.5 33 96.512 2100 168,840 92,550 55.4 55.4 36 96.1
13.5 2400 191,280 105,010 55.8 55.7 40 96.215 2500 231,760 116,540 54.9 54.9 45 95.9
(a) Capacities are gross values, not adjusted for motor heat(b) Some refrigerant circuit components may impact unit capacities(c) Entering Water Temperature 85° F
Engineering Guide
OmegaAir™
11Subject to change without notice. 80.10-TD (0917)
Water-Cooled Performance Data (a) (b) (c)
Digital Scroll Compressor
Tons CFMEntering Air Temp. (°F) Cooling (Btuh) Leaving Air Temp. (°F)
GPM Leaving Water Temp. (°F)
DB WB Total Sensible DB WB
3490
95
78 40,430 21,980 54.6 54.6 9 95.6440 80 40,300 19,650 54.8 54.8 9 95.6
4620 78 50,560 27,600 54.9 54.9 12 94.9550 80 50,130 24,520 54.8 54.8 12 94.9
5850 78 69,490 37,870 54.8 54.8 15 95.9760 80 69,160 33,830 54.9 54.9 15 95.9
6980 78 80,230 43,800 54.8 54.8 18 96.2870 80 79,690 38,920 54.7 54.7 18 96.2
71200 78 98,110 53,480 54.9 54.9 21 95.91070 80 97,550 47,650 54.9 54.9 21 95.9
81475 78 120,840 65,790 54.9 54.9 24 97.01310 80 119,950 58,510 54.8 54.8 24 97.0
91550 78 126,650 69,090 54.8 54.8 27 96.61380 80 125,910 61,570 54.8 54.8 27 96.6
101750 78 143,880 78,210 54.8 54.8 30 96.91560 80 143,090 69,810 54.8 54.8 30 96.8
111940 78 158,650 86,530 54.9 54.9 33 96.51710 80 157,320 76,800 54.7 54.7 33 96.4
122050 78 167,590 91,490 54.9 54.9 36 96.01810 80 166,100 81,340 54.9 54.8 36 95.8
13.52300 78 189,050 102,960 54.9 54.9 40.5 96.12040 80 187,690 91,800 54.9 54.8 40.5 96.1
152570 78 211,860 115,240 54.8 54.8 45 95.82290 80 210,760 102,990 54.9 54.9 45 95.7
(a) Capacities are gross values, not adjusted for motor heat(b) Some refrigerant circuit components may impact unit capacities(c) Entering Water Temperature 85° F
Engineering Guide
OmegaAir™
12Subject to change without notice. 80.10-TD (0917)
Indoor Ducted Condenser – Standard Scroll Compressor(s)
OmegaAir Tons
Condenser Model
OmegaAir CFM
Entering Air Temp. (°F) Cooling (Buth) Leaving Air
Temp. (°F) DB WB Total Sensible DB WB
1 BCSP12G*ASTA 200
95 78
14,800 8,450 57.9 57.71-1/2 BCSP18G*ASTA 300 20,010 11,539 60.7 60.4
2 BC2G*ASTA 325 25,060 13,980 56.8 56.82-1/2 BC3G*ASTA 400 31,200 17,330 56.5 56.5
3 BC3G*ASTA 450 35,380 19,440 56.5 56.54 BC4G*ATA 640 50,560 27,980 56.1 56.15 BC5G*ATA 840 64,990 36,020 56.5 56.56 BC6G*ATA 950 75,000 41,230 56.1 56.17 BC8G*ATA 1125 85,860 47,740 57.0 57.08 BC8G*ATA 1300 101,590 55,970 56.3 56.39 BC10G*ATA 1450 114,680 63,090 55.9 55.910 BC10G*ATA 1650 127,870 70,910 56.4 56.411 BC12G*ATA 1750 137,480 75,880 56.1 56.112 BC12G*ATA 1900 144,850 80,670 56.9 56.9
13.5 BC15G*ATA 2250 166,670 93,380 57.7 57.715 BC15G*ATA 2300 181,310 99,940 56.0 56.0
Outdoor Propeller Fan Condenser – Standard Scroll Compressor(s)
OmegaAir Tons
Condenser Model
OmegaAir CFM
Entering Air Temp. (°F) Cooling (Buth) Leaving Air
Temp. (°F) DB WB Total Sensible DB WB
1 PBC2G*ASTA 200
95 78
15,380 8,700 56.8 56.61-1/2 PBC3G*ASTA 330 21,700 12,660 60.8 60.3
2 PBC4G*ASTA 340 26,710 14,850 56.2 56.22-1/2 PBC5G*ASTA 440 34,050 18,890 56.5 56.5
3 PBC5G*ASTA 490 38,660 21,370 55.9 55.94 PBC7G*ATA 660 52,110 28,920 56.2 56.25 PBC10G*ATA 890 68,130 37,910 56.8 56.86 PBC10G*ATA 990 77,360 42,960 56.2 56.27 PBC15G*ATA 1230 92,060 51,550 57.4 57.48 PBC15G*ATA 1400 110,040 60,780 56.1 56.19 PBC18G*ATA 1500 115,880 64,270 56.6 56.610 PBC21G*ATA 1750 134,430 74,520 56.7 56.711 PBC21G*ATA 1900 145,750 80,870 56.8 56.812 PBC23G*ATA 2010 153,800 85,620 56.8 56.8
13.5 PBC28G*ATA 2370 176,620 98,460 57.7 57.615 PBC31G*ATA 2450 195,000 107,250 55.7 55.7
Air-Cooled Performance Data (a) (b) (c)
(a) Capacities are gross values, not adjusted for motor heat�(b) Some refrigerant circuit components may impact on unit capacities�(c) Ambient Air Temperature 95°F
Engineering Guide
OmegaAir™
13Subject to change without notice. 80.10-TD (0917)
Air-Cooled Performance Data (a) (b)
Indoor Ducted Condenser – Optional Digital Scroll Compressor(s)
OmegaAir Tons
Condenser Model CFM
Entering Air Temp. (°F) Cooling (Buth) Leaving Air
Temp. (°F) DB WB Total Sensible DB WB
3 BC3G*ASTA400
95
78 33,160 18,050 54.7 54.6350 80 32,730 15,910 54.4 54.2
4 BC4G*ASTA530 78 43,510 23,830 54.8 54.8470 80 43,030 21,130 54.8 54.8
5 BC5G*ASTA710 78 57,880 31,660 54.9 54.9630 80 57,390 28,330 54.9 54.9
6 BC6G*ATA860 78 70,880 38,680 54.8 54.8760 80 70,190 34710 54.7 54.7
7 BC8G*ATA1000 78 82,890 45,220 54.6 54.6900 80 82,320 40,230 54.7 54.7
8 BC8G*ATA1200 78 99,450 54,090 54.7 54.61070 80 98,710 48,130 54.7 54.6
9 BC10G*ATA1380 78 112,840 61,640 54.9 54.91220 80 111,780 54,690 54.8 54.8
10 BC10G*ATA1550 78 126,190 69,080 54.9 54.91370 80 125,130 61,220 54.8 54.8
11 BC12G*ATA1650 78 135,040 73,620 54.8 54.81470 80 134.070 65,580 54.9 54.9
12 BC12G*ATA1730 78 140,870 77,040 54.9 54.91530 80 139,620 68,650 54.8 54.8
13.5 BC15G*ATA1960 78 159,880 87,480 54.9 54.91740 80 158,920 77,850 54.9 54.9
15 BC15G*ATA2180 78 177,280 96,820 54.9 54.91930 80 176,190 86,180 54.9 54.9
(a) Capacities are gross values, not adjusted for motor heat�(b) Some refrigerant circuit components may impact on unit capacities�(c) Ambient Air Temperature 95°F
Engineering Guide
OmegaAir™
14Subject to change without notice. 80.10-TD (0917)
Air-Cooled Performance Data (a) (b) (c)
Outdoor Propeller Fan Condenser – Optional Digital Scroll Compressor(s)
OmegaAir Tons
Condenser Model CFM
Entering Air Temp. (°F) Cooling (Buth) Leaving Air
Temp. (°F) DB WB Total Sensible DB WB
3 PBC5G*ASTA450
95
78 36,760 20,130 54.9 54.9400 80 36,510 17,860 54.9 54.9
4 PBC7G*ASTA550 78 45,090 24,630 54.8 54.8490 80 44,710 21,860 54.9 54.9
5 PBC10G*ASTA780 78 63,550 34,690 54.9 54.9690 80 62,980 30,770 54.8 54.8
6 PBC10G*ATA900 78 73,470 40,320 54.9 54.9800 80 72,980 35,770 55.0 55.0
7 PBC15G*ATA1090 78 88,930 48,730 54.9 54.9960 80 88,180 43,050 54.7 54.7
8 PBC15G*ATA1330 78 108,760 59,480 54.9 54.91170 80 107,620 52,580 54.7 54.7
9 PBC18G*ATA1380 78 112,860 61,590 55.0 55.01220 80 111,840 54,600 54.9 54.9
10 PBC21G*ATA1610 78 131,940 71,970 54.8 54.81430 80 131,030 63,970 54.8 54.8
11 PBC21G*ATA1730 78 141,870 77,410 54.8 54.81540 80 140,930 68,900 54.9 54.9
12 PBC23G*ATA1830 78 149,600 81,840 54.9 54.91630 80 148,810 72,910 54.9 54.9
13.5 PBC28G*ATA2070 78 169,070 92,450 54.9 54.91830 80 167,950 82,170 54.8 54.8
15 PBC31G*ATA2340 78 191,150 104,230 54.9 54.92070 80 189,730 92,580 54.9 54.9
(a) Capacities are gross values, not adjusted for motor heat�(b) Some refrigerant circuit components may impact on unit capacities�(c) Ambient Air Temperature 95°F�
Engineering Guide
OmegaAir™
15Subject to change without notice. 80.10-TD (0917)
Blower Performance Data (a)
(a) Blower performance of basic unit with 2”, MERV 8 pleated filter and wet coil 95 / 78. Run selection on UCA Select to verify proper motor size based on actual unit configuration.
OmegaAir - Horizontal / Vertical
Tons CFMExternal Static Pressure (ESP)
0.25” 0.50” 0.75” 1.00” 1.25” 1.5” 1.75” 2.0”HP
1 200 1/4 1/4 - - - - - - - - - - - - - - - - - -1-1/2 300 1/4 1/4 1/4 1/4 1/4 1/4 1/4 - - -
2 400 1/4 1/4 1/4 1/4 1/4 1/4 1/3 1/32-1/2 500 1/4 1/4 1/3 - - - - - - - - - - - - - - -
3 600 1/4 1/4 1/3 1/2 - - - - - - - - - - - -4 800 1/4 1/4 1/3 1/2 1/2 1/2 3/4 3/45 1000 1/4 1/3 1/2 1/2 3/4 3/4 3/4 3/46 1200 1/3 1/2 1/2 3/4 3/4 3/4 1 17 1400 1/2 1/2 3/4 3/4 1 1 1 1-1/28 1600 1/2 3/4 3/4 1 1 1-1/2 1-1/2 1-1/29 1800 1/2 3/4 3/4 3/4 1 1 1-1/2 1-1/210 2000 3/4 3/4 3/4 1 1 1-1/2 1-1/2 1-1/211 2200 3/4 3/4 1 1 1-1/2 1-1/2 1-1/2 1-1/212 2400 3/4 1 1-1/2 1-1/2 1-1/2 1-1/2 2 2
13.5 2700 1 1-1/2 1-1/2 1-1/2 2 2 2 315 3000 1-1/2 1-1/2 1-1/2 2 2 2 3 3
Engineering Guide
OmegaAir™
16Subject to change without notice. 80.10-TD (0917)
Blower Performance Data (a)
(a) Blower performance of basic unit. Run selection on UCA Select to verify proper motor size based on actual unit configuration.
Indoor Ducted Condenser
Tons CFMExternal Static Pressure (ESP)
0.25” 0.50” 0.75” 1.00” 1.25” 1.5” 1.75” 2.0”HP
BCSP12 700 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4BCSP18 850 1/2 1/2 1/2 1/2 3/4 3/4 1 1
BC2 1600 3/4 3/4 3/4 3/4 3/4 1 1 1BC3 2000 1 1 1 1 1 1.5 1.5 1.5
BC4G*A (dual) 2500 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 2 2 2BC5G*A (dual) 3300 2 2 2 2 3 3 3 3
BC6 3800 3 3 3 3 3 5 5 5BC8 4250 3 3 5 5 5 5 5 5
BC10 6000 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 n/aBC12 6000 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 7-1/2 n/aBC15 7500 10 10 n/a n/a n/a n/a n/a n/a
BC4G*AS 2500 1-1/2 1-1/2 1-1/2 1-1/2 2 2 2 2BC5G*AS 3300 2 2 3 3 3 3 3 - - -
Engineering Guide
OmegaAir™
17Subject to change without notice. 80.10-TD (0917)
Contact the factory for hot water coil performance that will be specific for your application. Please provide:• Entering water temperature• Desired / Approximate leaving water temperature (typically a 20° difference)• Entering air temperature• Fluid type• Indicate if Optional Hot Water Valve is to be factory supplied� Valves are spring return, On / Off operation only�
Contact the factory for steam coil performance that will be specific for your application. Steam coils are suitable for 10 psi or less steam pressure. Steam valves and components are by others, field installed.
Hot Water Coil Performance (a) (b)
Steam Coil Performance
Engineering Guide
OmegaAir™
18Subject to change without notice. 80.10-TD (0917)
Electrical Data
The following sections provide the formulas and the data to calculate the Minimum Circuit Ampacity (MCA) and the Maximum Overcurrent Protection (MOP) for a variety of unit configurations. The formulas refer to the largest motor amps� Typically this is the compressor (RLA) but it can also
be one of the blower motors (FLA)� Please note that the UCA Select software program is also available to calculate electrical data and provide unit submittals, drawing reports and pricing information�
Cooling Only:
NOTE: Largest motor amps may not always be the compressor�MCA = (1�25 x largest motor amps) + the sum of the remaining motor amps MOP = (2�25 x largest motor amps) + the sum of the remaining motor ampsNote: Round calculated MOP value down to the nearest 5 amp increment�
Packaged OmegaAir Unit - Water-Cooled (can be single or dual compressor)EXAMPLE 1: EXAMPLE 2:2 Ton Water-cooled, 208/230-3-60 6 Ton Water-cooled, 460-3-60Single Compressor RLA = 8�3 Dual Compressors RLA = 6�0 eachEvap Blwr� Motor (1/4 HP) FLA = 1�3 Evap Blwr� Motor (3/4 HP) FLA = 1�5MCA = (1�25 x 8�3) + 1�3 = 11�7 MCA = (1�25 x 6�0) + 6�0 + 1�5 = 15�0MOP = (2�25 x 8�3) + 1�3 = 19�98 calculated MOP = (2�25 x 6�0) + 6�0 + 1�3 = 20�8 calculatedMOP = 15 (rounded down to nearest 5) MOP = 20 (rounded down to nearest 5)
Split-system OmegaAir, matched w/ Indoor Ducted Air-Cooled Condenser (can be single or dual compressor)
EXAMPLE 3:8 Ton OmegaAir, 208/230-3-60 8 Ton Indoor Ducted Condenser, 208/230-3-60Dual Compressors RLA = 16�0 each Cond Blwr� Motor (3 HP) FLA = 8�8 Evap Blwr� Motor (1 HP) FLA = 4�0MCA = (1�25 x 16�0) + 16�0 + 4�0 = 40�0 MCA = (1�25 x 8�8) = 11�0MOP = (2�25 x 16�0) + 16�0 + 4�0 = 56�0 calculated MOP = (2�25 x 8�8) = 19�8 calculatedMOP = 55 (rounded down to nearest 5) MOP = 15 (rounded down to nearest 5)
Cooling with Electric Heat:On equipment with multiple modes of operation (i�e� cooling and heating), each mode must be evaluated and whichever load condition provides the highest value shall be used�NOTE: Largest motor amps may not always be the compressor�
Use the larger of the following:MCAclg = (1�25 x largest motor amps) + the sum of the remaining motor ampsMCAhtg = 1�25 x (heater amps + evap motor FLA)
MOPclg = (2�25 x largest motor amps) + the sum of the remaining motor ampsMOPhtg = (2�25 x evap motor FLA) + heater amps
Note: Round calculated MOP value down to the nearest 5 amp increment� MOP must be greater than MCA� If the rounded MOP is less than the MCA, then the MOP is equal to the MCA value rounded UP to the next 5 amp increment�
Engineering Guide
OmegaAir™
19Subject to change without notice. 80.10-TD (0917)
Electrical Data
Packaged OmegaAir - Water-Cooled w/ Electric Heat (can be single or dual compressor)EXAMPLE 4:2 Ton Water-cooled, 208/230-3-60Single Compressor RLA = 8�3Evap Blwr� Motor (1/4 HP) FLA = 1�35 kW Electric Heat (heat only) = 13�1 amps
MCAclg = (1�25 x 8�3) + 1�3 = 11�7MCAhtg = 1�25 x (13�1 x 1�3) = 18�0MCA = 18�0MOPclg = (2�25 x 8�3) + 1�3 = 19�98 calculated, 15 (rounded down to nearest 5)MOPhtg = (2�25 x 1�3) + 13�1 = 16�0 calculated, 15 (rounded down to nearest 5)MOP = 20
Note: MOP must be greater than MCA� The cooling and heating rounded MOP’s are less than the MCA� MOP is then determined by rounding up the MCA to nearest 5 amp increment above the MCA�
Split-system OmegaAir w/ Electric Heat, matched w/ Indoor Ducted Air-Cooled Condenser (can be single or dual compressor)
EXAMPLE 5:8 Ton OmegaAir, 208/230-3-60 8 Ton Indoor Ducted Condenser, 208/230-3-60Dual Compressors RLA = 16�0 each Cond Blwr� Motor (3 HP) FLA = 8�8Evap Blwr� Motor (1 HP) FLA = 4�0 MCA = (1�25 x 8�8) = 11�020 kW Electric Heat (heat only) = 52�5 amps MOP = (2�25 x 8�8) = 19�8 calculatedMCAclg = (1�25 x 16�0) + 16�0 + 4�0 = 40�0 MOP = 15 (rounded down to nearest 5)MCAhtg = 1�25 x (4�0 + 52�5) = 70�6 MCA = 70�6MOPclg = (2�25 x 16�0) + 16�0 + 4�0 = 56�0 calculated, 55 (rounded down to nearest 5)MOPhtg = (2�25 x 4�0) + 52�5 = 61�5 calculated, 60 (rounded down to nearest 5)MOP = 75
Note: MOP must be greater than MCA� The cooling and heating rounded MOP’s are less than the MCA� MOP is then determined by rounding up the MCA to nearest 5 amp increment above the MCA�
Engineering Guide
OmegaAir™
20Subject to change without notice. 80.10-TD (0917)
Scroll Compressor RLA:
OmegaAir Tons
Compressor (Qty) 208/230-1-60 208/230-3-60 460-3-60
1 1 (Recip) 5.9 n/a n/a1-1/2 1 13.5 7.1 3.5
2 1 12.8 8.3 5.12-1/2 1 16.7 10.4 5.8
3 1 17.9 13.5 6.04 2 12.8 ea. 8.3 ea. 5.1 ea.5 2 16.7 ea. 10.4 ea. 5.8 ea.6 2 - - - 13.5 ea. 6.0 ea.7 2 - - - 13.7 ea. 6.2 ea.8 2 - - - 16.0 ea. 7.8 ea.9 2 - - - 15.6 ea. 7.8 ea.10 2 - - - 19.0 ea. 9.7 ea.11 2 - - - 22.4 ea. 10.6 ea.12 2 - - - 23.2 ea. 11.2 ea.
13.5 2 - - - 25.0 ea. 12.2 ea.15 2 - - - 29.5 ea. 14.7 ea.
Digital Scroll Compressor RLA:
OmegaAir Tons
Compressor (Qty) 208/230-1-60 208/230-3-60 460-3-60
3 1 18.5 11.7 6.24 1 20.2 16.1 7.85 1 n/a 20.4 9.76 2 - - - 11.7 ea. 6.2 ea.7 2 - - - 16.1 ea. 7.8 ea.8 2 - - -. 17.9 ea. 7.8 ea.9 2 - - - 16.9 ea. 8.1 ea.
10 2 - - -. 20.4 ea. 9.7 ea.11 2 - - - n/a 9.5 ea.12 2 - - - 23.2 ea. 11.2 ea.
13.5 2 - - - 24.0 ea. 12.6 ea.15 2 - - - 27.6 ea. 12.8 ea.
Evaporator Motor FLA:
HP 208/230-1-60 208/230-3-60 460-3-601/4 2.5 1.3 0.651/3 3.2 1.6 0.801/2 4.5 2.4 1.23/4 5.8 3.0 1.51 6.3 4.0 2.0
1-1/2 7.8 5.6 2.82 11.3 6.2 3.13 - - - 9.2 4.35 - - - 13.6 6.3
Outdoor Propeller Fan Condenser Motor FLA:HP Used In Models Fan Qty 208/230-1-60 208/230-3-60 460-3-601/3 PBC2 – PBC5 1 1.9 2.8 1.01/2 PBC6 – PBC7 1 3.6 2.8 1.21/2 PBC10 – PBC15 2 3.6 ea. (a) 2.8 ea. 1.2 ea.1/2 PBC18 – PBC23 3 - - - 2.8 ea. 1.2 ea.1/2 PBC28 – PBC31 4 - - - 2.8 ea. 1.2 ea.
Electrical Data
Indoor Ducted Condenser Motor FLA:
HP 208/230-1-60 208/230-3-60 460-3-601/2 3.8 2.2 1.33/4 5.8 3.2 1.51 7.0 3.4 1.6
1-1/2 9.4 5.0 2.42 13.7 6.5 3.13 18.0 8.8 4.25 - - - 13.5 6.5
7.5 - - - 18.0 9.010 - - - 28.0 14.0
(a) Single phase is only available on PBC10�
Engineering Guide
OmegaAir™
21Subject to change without notice. 80.10-TD (0917)
Electrical Heat Data (a) (b) (c) (d)
NominalkW OmegaAir Tons
Electric Heat Amps208/230-1-60 208/230-3-60 460-3-60
2 1, 1.5, 2, 2.5 9.1 5.3 2.53 1, 1.5, 2, 2.5, 3, 4 13.6 7.9 3.85 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7 22.7 13.1 6.36 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7 27.3 15.8 7.5
7.5 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10 34.1 19.7 9.410 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.5 45.5 26.2 12.6
12.5 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 32.8 15.715 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 39.4 18.820 4, 5, 6, 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 52.5 25.125 5, 6, 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 65.6 31.430 6, 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 78.7 37.735 7, 8, 9, 10, 11, 12, 13.5, 15 - - - 91.9 43.940 8, 9, 10, 11, 12, 13.5, 15 - - - 105 50.245 8, 9, 10, 11, 12, 13.5, 15 - - - 118.1 56.550 9, 10, 11, 12, 13.5, 15 - - - 131.2 62.855 10, 11, 12, 13.5, 15 - - - 144.3 6960 11, 12, 13.5, 15 - - - 157.5 75.365 13.5, 15 - - - 170.6 81.670 15 - - - 183.7 87.9
(a) Open Wire Electric Heaters come with SCR Controller, as standard�(b) Heaters are nominally rated (kW) at 220 or 460 volts� Amps listed at 220 or 460 volts�(c) All size heaters are installed in Extended Filter Box and available for Heat Only (not reheat)�(d) Unit has single point power with electric heat�
Engineering Guide
OmegaAir™
22Subject to change without notice. 80.10-TD (0917)
Tons Model Voltage CompressorRLA
Evaporator Motor Unit Electric Heat Unit w/ Electric Heat
HP FLA MCA MOP KW Amps MCA MOP1 OS*‡1G1ASFTA 208/230-1-60 5.9 1/4 2.5 9.9 15 5 22.7 31.5 35
1-1/2OS*‡1.5G1ASFTA 208/230-1-60 13.5 1/4 2.5 19.4 30 7.5 34.1 45.8 50OS*‡1.5G3ASFTA 208/230-3-60 7.1 1/4 1.3 10.2 15 7.5 19.7 26.3 30OS*‡1.5G4ASFTA 460-3-60 3.5 1/4 0.65 5.0 10 7.5 9.4 12.6 15
2
OS*‡2G1ASFTA 208/230-1-60 12.81/4 2.5 18.5 30 10 45.5 60.0 651/3 3.2 19.2 30 10 45.5 60.9 65
OS*‡2G3ASFTA 208/230-3-60 8.31/4 1.3 11.7 15 10 26.2 34.4 351/3 1.6 12.0 20 10 26.2 34.8 35
OS*‡2G4ASFTA 460-3-60 5.11/4 0.65 7.0 10 10 12.6 16.6 201/3 0.80 7.2 10 10 12.6 16.8 20
2-1/2
OS*‡2.5G1ASFTA 208/230-1-60 16.71/4 2.5 23.4 40 10 45.5 60.0 651/3 3.2 24.1 40 10 45.5 60.9 65
OS*‡2.5G3ASFTA 208/230-3-60 10.41/4 1.3 14.3 20 10 26.2 34.4 351/3 1.6 14.6 25 10 26.2 34.8 35
OS*‡2.5G4ASFTA 460-3-60 5.81/4 0.65 7.9 10 10 12.6 16.6 201/3 0.80 8.1 10 10 12.6 16.8 20
3
OS*‡3G1ASFTA 208/230-1-60 17.91/4 2.5 24.9 40 10 45.5 60.0 651/3 3.2 25.6 40 10 45.5 60.9 651/2 3.6 26.0 40 10 45.5 62.5 65
OS*‡3G3ASFTA 208/230-3-60 13.51/4 1.3 18.2 30 15 39.4 50.9 551/3 1.6 18.5 30 15 39.4 51.3 551/2 2.4 19.3 30 15 39.4 52.3 55
OS*‡3G4ASFTA 460-3-60 6.01/4 0.65 8.2 10 15 18.8 24.3 251/3 0.80 8.3 10 15 18.8 24.5 251/2 1.2 8.7 10 15 18.8 25.0 30
(a) Use Copper Conductors Only�(b) Values listed are typical and may vary dependent upon components utilized�* Either Water-Cooled (W) or Air-Cooled (A)‡ Either Vertical (V) or Horizontal (H)
Electrical Data - OmegaAir™ Section (a) (b)
Engineering Guide
OmegaAir™
23Subject to change without notice. 80.10-TD (0917)
Tons Models Voltage CompressorRLA
Evaporator Motor Unit Electric Heat Unit w/ Electric Heat
HP FLA MCA MOP KW Amps MCA MOP
4
OS*‡4G1AFTA 208/230-1-60 12.8 ea.1/4 3.2 32.0 40 10 45.5 60.0 651/3 3.6 32.4 45 10 45.5 60.9 651/2 5.3 34.1 45 10 45.5 62.5 65
OS*‡4G3AFTA 208/230-3-60 8.3 ea.1/4 1.6 20.3 25 20 52.5 67.3 701/3 2.4 21.1 25 20 52.5 67.6 701/2 2.8 21.5 25 20 52.5 68.6 70
OS*‡4G4AFTA 460-3-60 5.1 ea.1/4 0.8 12.3 15 20 25.1 32.2 351/3 1.2 12.7 15 20 25.1 32.4 351/2 1.4 12.9 15 20 25.1 32.9 35
5
OS*‡5G1AFTA 208/230-1-60 16.7 ea.1/3 3.2 40.8 55 10 45.5 60.9 651/2 3.6 41.2 55 10 45.5 62.5 653/4 5.3 42.9 55 10 45.5 64.1 65
OS*‡5G3AFTA 208/230-3-60 10.4 ea.1/3 1.6 25.0 35 25 65.6 84.0 851/2 2.4 25.8 35 25 65.6 85.0 903/4 2.8 26.2 35 25 65.6 85.8 90
OS*‡5G4AFTA 460-3-60 5.8 ea.1/3 0.8 13.9 15 25 31.4 40.3 451/2 1.2 14.3 20 25 31.4 40.8 453/4 1.4 14.5 20 25 31.4 41.1 45
6
OS*‡6G3AFTA 208/230-3-60 13.5 ea.1/3 1.6 32.0 45 30 78.7 100.4 1051/2 2.4 32.8 45 30 78.7 101.4 1053/4 2.8 33.2 45 30 78.7 102.1 105
OS*‡6G4AFTA 460-3-60 6.0 ea.1/3 0.8 14.3 20 30 37.7 48.1 501/2 1.2 14.7 20 30 37.7 48.6 503/4 1.4 14.9 20 30 37.7 49.0 50
7
OS*‡7G3AFTA 208/230-3-60 13.7 ea.1/2 2.4 33.2 45 35 91.9 117.9 1203/4 2.8 33.6 45 35 91.9 118.6 1201 3.6 34.4 45 35 91.9 119.9 120
OS*‡7G4AFTA 460-3-60 6.2 ea.1/2 1.2 15.2 20 30 43.9 56.4 603/4 1.4 15.4 20 30 43.9 56.8 601 1.8 15.8 20 30 43.9 57.4 60
8
OS*‡8G3AFTA 208/230-3-60 16.0 ea.1/2 2.4 38.4 50 35 91.9 117.9 1203/4 2.8 38.8 50 35 91.9 118.6 1201 3.6 39.6 55 35 91.9 119.9 120
OS*‡8G4AFTA 460-3-60 7.8 ea.1/2 1.2 18.8 25 35 43.9 56.4 603/4 1.4 19.0 25 35 43.9 56.8 601 1.8 19.4 25 35 43.9 57.4 60
Electrical Data - OmegaAir™ Section (a) (b)
(a) Use Copper Conductors Only�(b) Values listed are typical and may vary dependent upon components utilized�* Either Water-Cooled or Air-Cooled‡ Either Vertical (V) or Horizontal (H)
Engineering Guide
OmegaAir™
24Subject to change without notice. 80.10-TD (0917)
Tons Models Voltage CompressorRLA
Evaporator Motor Unit Electric Heat Unit w/ Electric Heat
HP FLA MCA MOP KW Amps MCA MOP
9
OS*‡9G3AFTA 208/230-3-60 15.6 ea.1/2 2.4 37.5 50 45 118.1 150.6 1553/4 2.8 37.9 50 45 118.1 151.4 1551 3.6 38.7 50 45 118.1 152.6 155
OS*‡9G4AFTA 460-3-60 7.8 ea.1/2 1.2 18.8 25 45 56.5 72.1 753/4 1.4 19.0 25 45 56.5 72.5 751 1.8 19.4 25 45 56.6 73.1 75
10
OS*‡10G3AFTA 208/230-3-60 19.0 ea.3/4 2.8 45.6 60 50 131.2 167.8 1701 3.6 46.4 65 50 131.2 169.0 170
1.5 4.8 47.6 65 50 131.2 171.0 175
OS*‡10G4AFTA 460-3-60 9.7 ea.3/4 1.4 23.2 30 50 62.8 80.4 851 1.8 23.6 30 50 62.8 81.0 85
1.5 2.4 24.2 30 50 62.8 82.0 85
11
OS*‡11G3AFTA 208/230-3-60 22.4 ea.3/4 2.8 53.2 75 55 144.3 184.1 1851 3.6 54.0 75 55 144.3 185.4 190
1.5 4.8 55.2 75 55 144.3 187.4 190
OS*‡11G4AFTA 460-3-60 10.6 ea.3/4 1.4 25.3 35 55 69.0 88.1 901 1.8 25.7 35 55 69.0 88.8 90
1.5 2.4 26.3 35 55 69.0 89.8 90
12OS*‡12G3AFTA 208/230-3-60 23.2 ea.
1 3.6 55.8 75 60 157.5 201.9 2051.5 4.8 57.0 80 60 157.5 203.9 205
OS*‡12G4AFTA 460-3-60 11.2 ea.1 1.8 27.0 35 60 75.3 96.6 100
1.5 2.4 27.6 35 60 75.3 97.6 100
13.5OS*‡13.5G3AFTA 208/230-3-60 25.0 ea.
1.5 4.8 61.1 85 65 170.6 220.3 2252 6.2 62.5 85 65 170.6 221.0 225
OS*‡13.5G4AFTA 460-3-60 12.2 ea.1.5 2.4 29.9 40 65 81.6 105.5 1102 3.1 30.6 40 65 81.6 105.9 110
15OS*‡15G3AFTA 208/230-3-60 29.5 ea.
1.5 4.8 71.2 100 70 183.7 236.6 2402 6.2 72.6 100 70 183.7 237.4 240
OS*‡15G4AFTA 460-3-60 14.7 ea.1.5 2.4 35.5 50 70 87.9 113.4 1152 3.1 36.2 50 70 87.9 113.8 115
Electrical Data - OmegaAir™ Section (a) (b)
(a) Use Copper Conductors Only�(b) Values listed are typical and may vary dependent upon components utilized�* Either Water-Cooled (W) or Air-Cooled (A)‡ Either Vertical (V) or Horizontal (H)
Engineering Guide
OmegaAir™
25Subject to change without notice. 80.10-TD (0917)
OmegaAir Tons Model Voltage Condenser Motor Unit HP FLA MCA MOP
1
BCSP12G1ASTA 208/230-1-60 1/2 3.8 4.8 53/4 5.8 7.3 10
BCSP12G3ASTA 208/230-3-60 1/2 2.2 2.8 53/4 3.2 4.0 5
BCSP12G4ASTA 460-3-60 1/2 1.3 1.6 53/4 1.5 1.9 5
1-1/2
BCSP18G1ASTA 208/230-1-60 1/2 3.8 4.8 53/4 5.8 7.3 10
BCSP18G3ASTA 208/230-3-60 1/2 2.2 2.8 53/4 3.2 4.0 5
BCSP18G4ASTA 460-3-60 1/2 1.3 1.6 53/4 1.5 1.9 5
2
BC2G1ASTA 208/230-1-60 3/4 5.8 7.3 101 7.0 8.8 15
BC2G3ASTA 208/230-3-60 3/4 3.2 4.0 51 3.4 4.3 5
BC2G4ASTA 460-3-60 3/4 1.5 1.9 51 1.6 2.0 5
3
BC3G1ASTA 208/230-1-60 1 7.0 8.8 151.5 9.4 11.8 20
BC3G3ASTA 208/230-3-60 1 3.4 4.3 51.5 5.0 6.3 10
BC3G4ASTA 460-3-60 1 1.6 2.0 51.5 2.4 3.0 5
4 (single)
BC4G1ASTA 208/230-1-60 1.5 9.4 11.8 202 13.7 17.1 30
BC4G3ASTA 208/230-3-60 1.5 5.0 6.3 102 6.5 8.1 10
BC4G4ASTA 460-3-60 1.5 2.4 3.0 52 3.1 3.9 5
4 (dual)
BC4G1ATA 208/230-1-60 1.5 9.4 11.8 202 13.7 17.1 30
BC4G3ATA 208/230-3-60 1.5 5.0 6.3 102 6.5 8.1 10
BC4G4ATA 460-3-60 1.5 2.4 3.0 52 3.1 3.9 5
5 (single)
BC5G1ASTA 208/230-1-60 2 13.7 17.1 303 18.0 22.5 40
BC5G3ASTA 208/230-3-60 2 6.5 8.1 103 8.8 11.0 15
BC5G4ASTA 460-3-60 2 3.1 3.9 53 4.2 5.3 10
5 (dual)
BC5G1ATA 208/230-1-60 2 13.7 17.1 303 18.0 22.5 40
BC5G3ATA 208/230-3-60 2 6.5 8.1 103 8.8 11.0 15
BC5G4ATA 460-3-60 2 3.1 3.9 53 4.2 5.3 10
(a) Use Copper Conductors Only�(b) Values listed are typical and may vary dependent upon components utilized�(c) All motors 1725 RPM. Motors ≤ 5 HP inherently protected.
Electrical Data - Air-Cooled Condenser Section (a) (b) (c)
Engineering Guide
OmegaAir™
26Subject to change without notice. 80.10-TD (0917)
OmegaAir Tons Model VoltageCondenser Motor Unit
HP FLA MCA MOP
6BC6G3ATA 208/230-3-60
3 8.8 11.0 155 13.5 16.9 30
BC6G4ATA 460-3-603 4.2 5.3 105 6.5 8.1 10
8BC8G3ATA 208/230-3-60
3 8.8 11.0 155 13.5 16.9 30
BC8G4ATA 460-3-603 4.2 5.3 105 6.5 8.1 10
10 BC10G3ATA 208/230-3-60 7.5 18.0 22.5 40BC10G4ATA 460-3-60 7.5 9.0 11.3 20
12 BC12G3ATA 208/230-3-60 7.5 18.0 22.5 40BC12G4ATA 460-3-60 7.5 9.0 11.3 20
15 BC15G3ATA 208/230-3-60 10 28.0 35.0 60BC15G4ATA 460-3-60 10 14.0 17.5 30
(a) Use Copper Conductors Only�(b) Values listed are typical and may vary dependent upon components utilized�(c) No motor upgrade� Drive set upgrade only�(d) All motors 1725 RPM. Motors ≤ 5 HP inherently protected. All 7.5 & 10 HP 1725 RPM with external overloads.
Electrical Data - Air-Cooled Condenser Section (a) (b) (c)
Engineering Guide
OmegaAir™
27Subject to change without notice. 80.10-TD (0917)
(a) Single Phase motors on unit are wired for 3 phase operation�(b) Single phase is available for 5 ton system only�
Electrical Data - Air-Cooled Outdoor Propeller Fan Condenser
OmegaAirTons
CondenserModel
FanQty Voltage
Condenser Motor UnitHP FLA MCA MOP
1PBC2G1ASTA
1208/230-1-60
1/31.9 2.4 15
PBC2G3ASTA 208/230-3-60 (a) 1.9 2.4 15PBC2G4ASTA 460-3-60 (a) 1 1.3 15
1.5PBC3G1ASTA
1208/230-1-60
1/31.9 2.4 15
PBC3G3ASTA 208/230-3-60 (a) 1.9 2.4 15PBC3G4ASTA 460-3-60 (a) 1 1.3 15
2PBC4G1ASTA
1208/230-1-60
1/31.9 2.4 15
PBC4G3ASTA 208/230-3-60 (a) 1.9 2.4 15PBC4G4ASTA 460-3-60 (a) 1 1.3 15
2.5, 3PBC5G1ASTA
1208/230-1-60
1/31.9 2.4 15
PBC5G3ASTA 208/230-3-60 (a) 1.9 2.4 15PBC5G4ASTA 460-3-60 (a) 1 1.3 15
4 (single)PBC7G1ASTA
1208/230-1-60
1/23.6 4.5 15
PBC7G3ASTA 208/230-3-60 2.8 3.5 15PBC7G4ASTA 460-3-60 1.2 1.5 15
4 (dual)PBC7G1ATA
1208/230-1-60
1/23.6 4.5 15
PBC7G3ATA 208/230-3-60 2.8 3.5 15PBC7G4ATA 460-3-60 1.2 1.5 15
5 (single)PBC10G1ASTA
2208/230-1-60
1/2 ea3.6 ea 8.1 15
PBC10G3ASTA 208/230-3-60 2.8 ea 6.3 15PBC10G4ASTA 460-3-60 1.2 ea 2.7 15
5 (dual), 6PBC10G1ATA
2208/230-1-60 (b)
1/2 ea3.6 ea 8.1 15
PBC10G3ATA 208/230-3-60 2.8 ea 6.3 15PBC10G4ATA 460-3-60 1.2 ea 2.7 15
7, 8PBC15G3ATA
2208/230-3-60
1/2 ea2.8 ea 6.3 15
PBC15G4ATA 460-3-60 1.2 ea 2.7 15
9PBC18G3ATA
3208/230-3-60
1/2 ea2.8 ea 9.1 15
PBC18G4ATA 460-3-60 1.2 ea 3.9 15
10, 11PBC21G3ATA
3208/230-3-60
1/2 ea2.8 ea 9.1 15
PBC21G4ATA 460-3-60 1.2 ea 3.9 15
12PBC23G3ATA
3208/230-3-60
1/2 ea2.8 ea 9.1 15
PBC23G4ATA 460-3-60 1.2 ea 3.9 15
13.5PBC28G3ATA
4208/230-3-60
1/2 ea2.8 ea 11.2 15
PBC28G4ATA 460-3-60 1.2 ea 5.1 15
15PBC31G3ATA
4208/230-3-60
1/2 ea2.8 ea 11.2 15
PBC31G4ATA 460-3-60 1.2 ea 5.1 15
Engineering Guide
OmegaAir™
28Subject to change without notice. 80.10-TD (0917)
2-Way Single Circuit
2-Way Valve 2-Way Valve
2-Way Valve
2-Way Valve
2-Way Valve
3-Way Valve
2-Way Valve
2-Way Valve
3-Way Valve
Condensing Coil Condensing Coil
Condensing Coil
Condensing Coil
Condensing Coil
Condensing Coil
Condensing Coil
Condensing Coil
Condensing Coil
Water In
Water Out
Water In
N.O. Solenoid Valve
Water Out
Water In
N.O. Solenoid Valve
Water Out
Water In
Water Out
Water In
Water Out
Water In
Water Out
3-Way Single Circuit
2-Way Dual Circuit
3-Way Dual Circuit
2-Way Single Circuit with Bypass
2-Way Dual Circuit with Bypass
Water ConnectionsTons Female Pipe Thread (FPT)
1 thru 4 3/4”5 thru 8 1”9 thru 12 1-1/4”13.5 & 15 1-1/2”
Notes:1� Standard valves are 2-way, 150 psig Water Reg Valves�2� Optional valves:
a� 2-way, 350 psig WRVb� 3-way, 150 psig WRVc� 3-way, 350 psig WRVd� 2-way, w/ N�O� solenoid bypass valve (150 psig only),
2-way valve in lieu of 3-way WRVe� Electronic Head Pressure Control Valves: 2-Way & 3-Way, 350 psig�
3� 3-way valve is placed only on lead circuit of dual-circuit units�4� Water-cooled units are designed for 85° F EWT� If water
temperature is below 75° or over 95°, contact factory�5� Nominal 3 GPM / Ton�6� UCA select software is also available to verify performance at a range of
conditions�7� Valve settings have head pressure set at 235 psi�8� Standard heat exchangers are counter flow co-axial type.9� United CoolAir uses propylene glycol when testing all water-cooled units�
When shipped, the water circuit may still have a little glycol inside� The water circuit should be flushed with water at the job site before being hooked up to the actual loop�
Water-Cooled Piping Arrangements
Engineering Guide
OmegaAir™
29Subject to change without notice. 80.10-TD (0917)
Tons A B C D* E F G H I J K1 - 3 31 31-5/8 12-1/2 5 or 7 52-1/2 8-1/2 42 64 9-1/2 24-3/4 20-1/8
4 - 8 31 29-1/4 20 5 or 7 57-7/8 11-3/8 48 72 10-1/2 39-1/8 16-1/2
9 - 15 31 26-7/8 25 5 or 7 61-1/2 13-5/8 72 78 12-7/16 51-1/8 15-1/16
Not To Scale
Dimensions - Vertical
*Extended filter rack to 18 or 20 inches with optional heat
Engineering Guide
OmegaAir™
30Subject to change without notice. 80.10-TD (0917)
Tons A B C D E F* G H I J K1 - 3 45 57 43 23-7/8 17-13/16 5 or 7 61 8-11/16 26 9-3/4 41
4 - 8 54 61 52 39-1/2 24 5 or 7 65 11-9/16 26 10-5/8 50
Dimensions - Horizontal
Not To Scale
Tons A B C D E F G H I J K
1 - 3 45 49 43 23-7/8 17-13/16 5 53 8-11/16 22 9-3/4 41
4 - 8 54 57 52 39-1/2 24 5 61 11-9/16 26 10-5/8 50
“B” Air Path
Bottom raeR tfeL
A
B
C D E
F G
H
I
J
K
“F” Air Path
Rear
I
K
Left
E
F G
H
A
B
C D
Top
J
“T” Air Path
A
B
C D
Top
J
Left
E
F G
Rear
I
K H
Not To Scale
“B” Air Path (Rear Inlet and Bottom Supply)
“F” Air Path (Rear Inlet and Front Supply)
“T” Air Path (Rear Inlet and Top Supply)
*Extended filter rack to 18 or 20 inches with optional heat
Engineering Guide
OmegaAir™
31Subject to change without notice. 80.10-TD (0917)
Tons A B C D E F* G H I J K L M N
9 - 15 70 42 68 59-1/2 25 5 or 7 46 13-11/16 30 12-1/2 66 4 21 25
Dimensions - Horizontal
Not To Scale
Tons A B C D E F G H I J K L M N
9 - 15 70 42 68 59-1/2 25 5 46 13-11/16 30 12-1/2 66 4 21 25
“B” Air Path
Bottom Left Rear
A
B
C D E
F G
H
I
J
K
“F” Air Path
Rear
I
K
Left
E
F G
H
A
B
C D
Top
J
“T” Air Path
A
B
C D
Top
J
Left
E
F G
Rear
I
K H
Not To Scale
L M
N
L M
N
N
L
M
“B” Air Path (Rear Inlet and Bottom Supply)
“F” Air Path (Rear Inlet and Front Supply)
“T” Air Path (Rear Inlet and Top Supply)
*Extended filter rack to 18 or 20 inches with optional heat
Engineering Guide
OmegaAir™
32Subject to change without notice. 80.10-TD (0917)
Due to product flexibility some options and configurations may not be shown. Contact the factory for specials.
Indoor Ducted Condenser Dimensions
TONS B C D Q R V X Y Z AA AB AC AD PIPING OUTLET LOCATIONS
1-1�5 SINGLE CIRCUIT 35 15⁄16 16 29 9⁄16 37 15⁄16 25 ¼ 4 15⁄16 12 6 ¼ 12 1⁄16 12 2 ¾ 1 ¼ 2 3⁄16
2-4 SINGLE CIRCUIT 47 3⁄8 22 34 ¾ 48 ¾ 21 9⁄16 4 11⁄16 16 10 16 16 4 11⁄16 1 3⁄16 11 1⁄8 ROW 1
5 SINGLE CIRCUIT 55 3⁄8 27 40 3⁄8 56 ¾ 27 ¼ 3 11⁄16 18 15 1⁄16 18 20 4 11⁄16 2 3⁄16 11 1⁄8 ROW 1
4-6 DUAL CIRCUIT 55 3⁄8 27 40 3⁄8 56 ¾ 27 ¼ 3 11⁄16 18 15 1⁄16 18 20 4 11⁄16 2 3⁄16 11 1⁄8 ROWS 1 & 2
8-10 DUAL CIRCUIT 70 5⁄8 29 45 15⁄16 72 1⁄16 32 1⁄8 5 5⁄8 30 14 7⁄16 20 24 3 ½ 1 ½ 11 1⁄8 ROWS 1 & 3
12-15 TRIPLE CIRCUIT 70 5⁄8 29 45 15⁄16 72 1⁄16 32 1⁄8 5 5⁄8 30 14 7⁄16 20 24 3 ½ 1 ½ 11 1⁄8 ROWS 1, 2 & 3
(a) Note(b) Mounting rail height and duct flange 1” TYP
Engineering Guide
OmegaAir™
33Subject to change without notice. 80.10-TD (0917)
Due to product flexibility some options and configurations may not be shown. Contact the factory for specials.
Indoor Ducted Condenser Sections
Standard - Back Inlet / Back Discharge
Side Inlet / Back Discharge
Back Inlet / Rear Discharge
Side Inlet / Rear Discharge
Mirror Image Back Inlet / Back Discharge
Mirror Image Side Inlet / Back Discharge
Mirror ImageBack Inlet / Rear Discharge
Mirror ImageSide Inlet / Rear Discharge
Optional Air Paths
Engineering Guide
OmegaAir™
34Subject to change without notice. 80.10-TD (0917)
Outdoor Propeller Fan Condenser
Engineering Guide
OmegaAir™
35Subject to change without notice. 80.10-TD (0917)
Water-CooledGPM / Ton (min./max.) 2.5 / 3.5
Leaving Water Temp (min./max) 60 / 115
Note: (a) Not all combinations may be valid (b) Dependent upon specific application, some additional refrigerant circuit considerations may be required.
Miscellaneous Application Data
Voltage 208 / 230 460Variation 187 / 253 414 / 504
Condensate Drain Pipes: 3/4” IPS
Service Clearances - Plan View
Note: Outdoor propeller fan condenser clearances: All sides – 36", Above fan – 72"
Engineering Guide
OmegaAir™
36Subject to change without notice. 80.10-TD (0917)
1. “OS” Outside Air Type
2. “W” Water-Cooled“A” Air-Cooled with Remote Condenser
3. “V” Vertical Configuration“H” Horizontal Configuration
4. Nominal Tons “1”, “1.5”, “2”, “2.5”, “3”, “4”, “5”, “6”, “7”, “8”, “9”, “10”, “11”, “12”, “13.5”, “15”
5. “G” Common to all
6. “1”, “3”, “4” Indicates Voltage“1” 208-230V, 1 PH 60 Hz“3” 208-230V, 3 PH 60 Hz“4” 460V, 3 PH 60 Hz
7. “ASF”, “ASD”, “AF”, “AD”, “ADF” Quantity of Refrigerant Circuits/Compressor Type“ASF” Indicates 1 Circuit - Fixed Speed Compressor“ASD” Indicates 1 Circuit - Digital Compressor“AF” Indicates 2 Circuits - Fixed Speed Compressors (Both Circuits)“AD” Indicates 2 Circuits - Digital Compressors (Both Circuits)“ADF” Indicates 2 Circuits - Digital (Lead Circuit), Fixed Speed Compressor (Lag Circuit)
8. “T” Traditional Cabinet
9. “A” Refrigerant R-410a
10 “2 thru 70” kW Electric Heat
11. “-T”, “-F”, “-B” Air Path Configuration“-T” Top Discharge“-F” Front Discharge“-B” Bottom Discharge
12. “X” Special Configuration
OmegaAir SectionBasic Model Designation
EXAMPLE: OS1
W2
V3
34
G5
36
ASF7
T8
A9
1010
- T11
X12
Engineering Guide
OmegaAir™
37Subject to change without notice. 80.10-TD (0917)
Air-Cooled Indoor Ducted CondenserBasic Model Designation
1. “BCSP” Air-Cooled Condenser Section (1 or 1-1/2 Ton, Centrifugal) “BC” Air-Cooled Condenser Section (2 thru 15 Tons, Centrifugal)
2. Nominal Tons “1”, “1.5”, “2”, “3”, “4”, “5”, “6”, “8”, “10”, “12”, “15”
3. “G” Common to allCommon to all
4. “1”, “3”, “4” Indicates Voltage“1” 208-230V, 1 PH 60 Hz“3” 208-230V, 3 PH 60 Hz“4” 460V, 3 PH 60 Hz
5. “AS” or “A” Quantity of Refrigerant Circuits“AS” Indicates 1 Circuit“A” Indicates 2 Circuits
6. “T” Traditional Cabinet
7. “A” Refrigerant R-410a
EXAMPLE: BC1
32
G3
34
AS5
T6
A7
- X8
Engineering Guide
OmegaAir™
80.10-TD (0917)
1. “PBC” Air-Cooled Condenser Section
2. Model Size “2”, “3”, “4”, “5”, “6”, “7”, “10”, “15”, “18”, “21”, “23”, “28”, “31”
3. “G” Common to all
4. “1”, “3”, “4” Power Supply“1” 208-230V, 1 PH 60 Hz“3” 208-230V, 3 PH 60 Hz“4” 460V, 3 PH 60 Hz
5. “AS”, “A” Quantity of Refrigerant Circuits“AS” Indicates 1 Circuit“A” Indicates 2 Circuits
6. “T” Traditional Cabinet
7. “A” Refrigerant R-410a
8. “X” Special Configuration
Air-Cooled Outdoor Propeller Fan CondenserBasic Model Designation
EXAMPLE: PBC1
32
G3
34
A5
T6
A7
- X8
80.10-TD (0917)
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491 East Princess Street, York, PA 17403 Phone: 717-843-4311 Fax: 717-854-4462email: [email protected] web: www.unitedcoolair.com
Copyright © by United CoolAir Corporation 2017. All rights reserved. Manufacturer reserves the right to make changes without notice.
Unique Solutions for All-Indoor HVAC Projects
Authorized Distributor: LIMITED WARRANTYUnited CoolAir Units are backed by a 1 year limited warranty on parts and a 5 year limited warranty on the compressor (labor not included). Maintenance items such as filters and belts are excluded under this limited warranty�FACTORY TESTEDAll units are functionally run tested before shipment to ensure a trouble-free start-up and unit commissioning� Industry proven components are used throughout to enhance system reliability and peace of mind�
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