York Ygas270

air-cooled screw liquid chillerYGAS Series Prior to delivery. 2 . reliability and adaptability for all types of air conditioning installations. The unit may contain one. galvanized steel. ready for field installation. evacuated. an operational test is performed with water flowing through the cooler to ensure that each refrigerant circuit operates correctly. the unit is pressure tested. The unit structure is fabricated with heavy gauge. which is coated with “Champagne” baked-on polyester powder paint. and fully charged with refrigerant and lubrication oil. The units are designed for water cooling and to be located outside on the roof of a building or at ground level. two. or three refrigerant circuits.Nomenclature YG A S XXX S A E 50 S A YORK chiller Design Level: A Air-cooled chiller Screw compressor Nominal Capacity (TR) Liquid Chiller Refrigerant: HFC-134a Power: 50=380V-3P-50Hz 53=400V-3P-50Hz 55=415V-3P-50Hz S=Standard fan H=High pressure fan Power: 50=380V-3P-50HZ Power: 53=400V-3P-50HZ Power: 55=415V-3P-50HZ E: ARI design Specification General YORK YGAS series chillers are manufactured to the highest design and construction standards to ensure high performance. After assembly. The units are completely factory-assembled with all interconnecting refrigerant piping and internal wiring. a trademark of the screw compressor. The evaporator shell of each system contains a refrigerant relief valve. 3-phase. The evaporator shell is insulated with 19mm closed-cell material. A 40mm diameter sight glass is installed at the appropriate position to allow visual inspection of refrigerant levels. direct drive. providing vertical air discharge from extended orifices for efficiency and low sound. high-condensing coefficient. Isolation . current overload protected with double sealed.Compressors The unit has accessible. which stays in position unless power pulses from a driver to initiate the two discrete sets of motor stator windings for rotation in either direction. Motors . Integral steel 3 . All rotating parts are statically and dynamically balanced to ensure high operational efficiencies and reliable performance. Stepless capacity control is achieved between 25% and 100% of full capacity for each compressor by regulating slide valve to fulfill the cooling load requirements. These nozzle connections are suitable for corresponding flanges.0MPa for tube side. Motor . A “silent night” mode can be provided by YGAS chiller. The electronic expansion valve is able to inject precise amounts of liquid into the evaporators for the system. corrosion-resistant copper tubes arranged in staggered rows and mechanically expanded into corrosion resistant aluminum alloy fins with full height fin collars. Housing . The motor operates the spindle. Capacity Control .Microprocessor controls the load/ unload solenoid valve to drive the valve and achieve stepless and smooth capacity control from 100% to 25% of compressor capacity for each compressor. The refrigerant side has a safety valve with trip pressure of 2. Plugged 3/4”NPT drain and vent connections are provided in each water box. internally enhanced.3MPa for shell. flooded type heat exchanger. Rotors -The rotors are housed in a cast iron compressor housing precision machined to provide optimal clearances for the rotors. Condenser Coil -The fin and tube condenser coils are manufactured from seamless. 6-pole. The refrigerant side is manufactured and tested in accordance to China National Standard GB151. Electronic Expansion Valve YGAS series chillers are equipped with advanced electronic expansion valve to ensure accurate control at various load conditions. Redundant overload protection is provided using both internal thermistor and current overload protection on all three phases. Contact between the male and female rotor is primarily rolling on a contact band on each of the rotor’s pitch circle. The units also adopt Reversed “M” type Coil arrangement to achieve high efficiency heat transfer by optimizing the corner angle of the coils.The motors are high-efficiency. Stub-out water nozzle connections with flanges are welded to the water boxes. and are capped for shipment. A distributor trough provides uniform distribution of refrigerant over the entire shell length.Motor cooling is provided by suction gas from the evaporator flowing across the motor. has a Design Working Pressure (DWP) of 2.25MPa. This results in virtually no rotor wear and increased reliability.The fans are dynamically and statically balanced. The motor is a 2-phase bi-polar type. water baffles provide the required pass arrangements.1MPa. Evaporator The evaporator is a shell and tube. direct drive semi-hermetic rotary twin-screw compressor(s). Fans .Each compressor is mounted on isolator pads to reduce vibration transmission to the structure. direct drive with corrosion resistant glass fiber reinforced composite blades molded into full airfoil cross section. The removable compact water boxes are fabricated from steel.Cast iron compressor housing precisely machined for optimal clearances and superb efficiency. where rotating movements are transformed into linear motion by the transmission in the cage assembly. Customer can get the lower noise level by timing or manual driving the “silent night” on the control panel. 1. The direction depends on the phase relationship of the power pulses. Entire compressor. The design working pressure is 1MPa and the boxes are tested at 1. The design working pressure is 2. whose value again is decisive for the travel. A baffle plate is located above the tube bundle to prevent liquid refrigerant carryover into the compressor. permanently lubricated ball bearings. Class “F”.2MPa. from suction to discharge. The two speed fans equipped in chiller will switch to low speed automatically. The electronic expansion valve modulation is electronically controlled by activation of the AST stepper motor. The control panel is divided into a power and a control compartment. The compressor motor protection can relay the compressor current to the microprocessor. Power and Control Panels All controls and motor starting equipment necessary for unit operation are factory wired and function tested. The external oil separators. 4 . etc. Returning oil to the compressor prolongs its life and also improves the performance of the evaporator. DWP of the oil separator can reach 2. This high pressure “oil injection” forces the oil into the compressor. Oil Separator Besides the high efficiency internal oil separation in each compressor. which are equipped to test discharge pressure and oil pressure. High pressure switch and low pressure switch are also installed in the system pipe to protect the compressor.Refrigerant Circuits Unit piping is TP2 copper with brazed joints. After lubricating the bearings. Power and control sections have separate hinge. control circuit serving compressor capacity control. The refrigeration system is pressure-tested. sight glass with moisture-indicator. Microprocessor All the control logic and devices which are factory wired will be fully tested in the factory. differential pressure causes the oil to be automatically injected through orifices on a closed thread near the suction end of the rotors. Oil Cooling Oil cooling is provided by routing oil from the compressor through several of the bottom rows of the condenser coils. HMI and I/O board. ball valve. The microprocessor-based control center includes the following functions: LCD Display The display consists of a liquid crystal 240*128 dot display. The liquid line includes: electronic expansion valve. leak-tested. The entire suction line and the liquid line between the expansion valve and the cooler. and evacuated then charged with refrigerant. There are two high pressure sensors. latch and gasket sealed doors for ease of maintenance and safety of the operators. and it can also protect from phase reversal and lack of phase for compressor power supply. where it is fed to the bearings and rotors for lubrication. to test the evaporator pressure. The surface is painted YORK Champagne. Oil Eductor Oil eductor circuit is provided to properly manage the amount of oil in the evaporator and transfer oil from the evaporator to compressor with the “jet pump” principle. then sent back to the compressor. The control section contains microcomputer keypad. compressor contactor coils. where it is cooled. foam insulation. with light emitting diode backlighting for outdoor viewing of operating parameters and program points. 1 and 2 circuit units have one control panel respectively. are insulated with flexible. angle valve. The oil flows from the oil separator into the compressor through an oil filter and a solenoid valve at high pressure. drier filter. Each power compartment comprises of compressor starting contactors. UV stable color coordinated closed-cell. The panel enclosures are designed to IP55 and manufactured from powder coated galvanized steel. It lubricates the rotors as well as provides an oil seal against leakage around the rotors to ensure refrigerant compression efficiency. with no moving parts and designed for minimum oil carry-over. are mounted in the discharge line of the compressor.26MPa. there is an external centrifugal oil separator used to avoid lubrication oil mixing with the refrigerant in the system ensuring maximum heat exchange and compressor lubrication. A LCD display screen and user-friendly keypad is mounted in front of the HMI. and a low pressure sensor. and 3 circuit unit has two control panels (main and auxiliary). Power Supply Option ● 380V-3P-50Hz ● 400V-3P-50Hz ● 415V-3P-50Hz Coil Fin Option ● Epoxy Coated Aluminum-Ripple Fin Vibration Isolation Option ● Neoprene isolation to provide great performance in ● most applications (field mounted) for the Standard Chiller. 5 . Compressor Acoustic Enclosure The silencers cotton can be installed outside the compressor and it is made of flexibility acoustic material and can reduce the operation noise effectively. Spring and cage type isolators for mounting under the unit base rails. Operating fault .3bar. oil pressure. phase imbalance and ● ● ● ● ● phase loss protection High compressor motor’s current protection Low water/liquid temperature protection Compressor motor overload protection Compressor anti-recycle protection Fan motor overload protection The unit also has other control functions such as: ● ● ● ● ● ● ● No water flow Anti-frozen protection High/low oil temperature protection Oil level switch protection High discharge temperature protection Low suction pressure protection High discharge pressure protection ● ● ● ● ● ● ● ● ● External interlock with other auxiliary equipment Silent mode Program start/stop time Stepless capacity control Pre heating for unit Remote ON/OFF Smart fan control Integration with open MODBUS protocol provides easy connection to BAS system RS-485 standard serial communication ports Options Flow Switch The design working pressure of target type flow switch is 10. the unit can self diagnose. DI and DO status .Includes outlet temperature of chilled water/liquid. Adjustable spring Isolators.When a fault occurs. oil temperature and compressor current etc of system. display the cause. Deflection may vary slightly by application (field mounted). It is suitable for chilled liquid applications.Operation Status Display Operating data . High Static Fans The unit is capable of choosing a high static pressure fan to be used for some applications that need the duct connection. and send an alarm. discharge temperature. Compressor Suction Service Valve Option This option includes a suction service valve in the suction line used to close off the connection between the cooler/ evaporator and compressor when required. The failure alarm history is logged for field troubleshooting. evaporator pressure. ambient temperature. System Protection ● Power supply phase reversal. discharge pressure. Disconnect Switch with Single Power Connection Option Disconnect switch with single power connection option is available for 2 Circuit Units.Displays the DI (Data Input) and DO (Data Output) status. Single Water connection For 3 Circuit Units The option provides one water connection for 3 Circuit Units and saves the installation space. 0563 0.7812 1.3P.3 - 10.0 30. YGAS450.8057 1.7896 1. 4 3. Chiller Model YGAS090 YGAS120 YGAS150 YGAS180 YGAS210 YGAS240 YGAS270 YGAS300 YGAS450 Line A B C D E F G H H C a 0.7733 1.50Hz Unit °C °C bar °C V V V 5 342 360 374 Min.0563 0.1 51. Where parameters a. And it’s necessary to balance the pressure of their two branches.2 75.8057 1.5183 0.1189 0. 10 8 YGAS090 Chiller Model Minimum Cooler1 Flow Rate Maximum Cooler1 Flow Rate Minimum Cooler2 Flow Rate Maximum Cooler2 Flow Rate l/s l/s l/s l/s 7.6 64.9 - 25.5 37.1530 0.763 1.4 58. Operating limitations YGAS Series Chillers Leaving Chilled Liquid Temperature Chilled Liquid Ambient Air Power Supply Voltage Chilled Liquid Temperature Difference Maximum Water Side Pressure Air Entering Temperature 380V.1 - 12.7 - 25.0729 0.5 10 46 418 440 457 Max.7812 100 Pressure drop / kPa 80 60 40 20 0 10 20 30 40 50 60 Water flow / L/s Note: Cooler Water Pressure drop of 3 Circuit Units.5 37. Coolers of YGAS300/YGAS150.8 23. is formed respectively by two branches.4 6 YGAS450 YGAS300 YGAS240 YGAS180 YGAS150 YGAS120 YGAS210 YGAS270 .50Hz 415V.2 75.4 - 17.0995 b 1.3P.0993 0.4 - 14.Cooler water pressure drop Pressure Drop Calculation: 120 A B D EC F G H Pressure Drop [kPa] = a x (Flow Rate [l/s]b).0937 0. b can be showed from following list.50Hz 400V.2 - 19.778 1.799 1.7 12.7714 1.3 - 21.1501 0.3P.5 43. 45×6 19000×6 1 15.2 63.5~100 10 2.45×8 19000×8 1 25.0 1 91.0 30.0 2 2 218.1 25~100 6 2.5~100 12.8 12.8 25~100 8 2.45×16 2.0 257.0 DN150 160 160 10000 2240 2456 9950 10250 7 .8 1 111.45×8 Reversed “M” type 19000×8 Flooded Cooler 1 20.5~100 16 16 2.45×10 19000×10 1 28.8 DN125 140 4676 2240 2456 4700 4850 YGAS150 150.1 62.5~100 16 2.9 43.45×14 YGAS300 300.1 252.4 DN100 125 3676 2240 2456 4000 4150 1 Circuit Units YGAS120 118.0 2 196.5 63.6 DN150 100 100 5938 2240 2456 7000 7150 2 Circuit Units YGAS240 YGAS270 231.2 31.5 67.7 12.9 DN150 DN150 DN150 110 130 140 130 130 130 8176 9200 9600 2240 2240 2240 2456 2456 2456 8250 9050 9500 8400 9300 9750 YGAS210 203.Physical data 1 circuit units Chiller Model for Standard Mode Unit Capacity Qty Compressor Input Power Capacity Control Fan Qty Fan Motor Power Condenser Type Air Flow Rate Type Qty Evaporator Water flow rate Water Pressure Drop Water Pipe Connection Refrigerant Charge System 1 Refrigerant Charge System 2 Refrigerant Charge System 3 L Dimension W H Shipping Weight Weight Operating Weight Ton PCS kW % PCS kW — m3/h — PCS l/s kPa kg kg mm mm mm kg kg YGAS090 90.45×16 Reversed “M” type 19000×14 19000×16 19000×16 Flooded Cooler 1 1 1 34.3 65.9 58.0 1 151.0 12.4 25~100 8 2.2 DN125 150 5076 2240 2456 5200 5400 2 circuit units Chiller Model for Standard Mode Unit Capacity Ton Qty PCS Compressor Input Power kW Capacity Control % Fan Qty PCS Fan Motor Power kW Condenser Type — Air Flow Rate m3/h Type — Qty PCS Evaporator Water flow rate l/s Water Pressure Drop kPa Water Pipe Connection Refrigerant Charge System 1 kg Refrigerant Charge System 2 kg Refrigerant Charge System 3 kg L mm Dimension W mm H mm Shipping Weight kg Weight Operating Weight kg YGAS180 172.45×16 19000×16 1 50.5~100 14 2.0 2 184.2 38.0 2 302.6 12. 0 DN150/DN125 160 160 160 15276 2240 2456 15150 15650 Electrical data Multi Point Input (to each system) YGAS Model YGAS090 YGAS120 YGAS150 YGAS180 YGAS210 YGAS240 YGAS270 YGAS300 YGAS450 System(s) 1 1 1 1&2 1 2 1&2 1 2 1&2 1&2&3 System Nominal / Amps 380 V 182 233 304 185 182 233 233 304 233 304 304 400 V 173 222 289 176 173 222 222 289 222 289 289 415 V 168 215 280 171 168 215 215 280 215 280 280 System Maximum / Amps 380 V 239 305 370 234 239 305 305 370 305 370 370 400 V 232 294 355 227 232 294 294 355 294 355 355 415 V 224 284 341 219 224 284 284 341 284 341 341 System Max Start / Amps 380 V 438 553 710 438 438 553 553 710 553 710 710 400 V 456 574 718 456 456 574 574 718 574 718 718 415 V 475 596 727 475 475 596 596 727 596 727 727 8 .0 3 454.3~100 24 2.45×24 Reversed “M” type 19000×24 Flooded Cooler 2 75.3 circuit units Chiller Model for Standard Mode Unit Capacity Qty Compressor Input Power Capacity Control Fan Qty Fan Motor Power Condenser Type Air Flow Rate Type Qty Evaporator Water flow rate Water Pressure Drop Water Pipe Connection Refrigerant Charge System 1 Refrigerant Charge System 2 Refrigerant Charge System 3 L Dimension W H Shipping Weight Weight Operating Weight Note: Cooling capacities in kW at 7°C leaving liquid temperature and 35°C ambient temperature.2 8.7 67. Ton PCS kW % PCS kW — m3/h — PCS l/s kPa — kg kg kg mm mm mm kg kg 3 Circuit Units YGAS450 450. YGAS150. （ contact impedance is less than 0. Terminal 88 and 89 are used for ALARM （dry contact output.Power supply connection 1 Circuit Units: YGAS090. please short-cut 14 an 13 9 .5 Ohm） ； 2. POWER (380/400/415V-3N-50HZ) Customer supply Extra inter lock If no EXT.contact impedance is less than 0. Terminal 86 and 87 are used for PUMP dry contact output. YGAS120.5 Ohm） ； WIRE # 16AWG COPPER Remote stop/start Field wiring must also comply with local codes. Control Section Power Section Control Section Power Section T2 YORK-003 EOEVD KM3 KM1 1QF 1MP CT KM2 PE PE N Protective Earth Circuit Breaker Protective Earth Field Connection YGAS090SAE \ YGAS120SAE \ YGAS150SAE Control Section 13 13 13 13 13 13 13 1 2 3 8 14 11 KA7 KA8 Power Centre N1 N1 N1 N1 N1 N1 N1 N1 32 33 34 35 36 85 86 87 88 89 Breaker 1QF PE PE WIRE # 16AWG COPPER Chiller water flow switch WIRE # 16AWG COPPER L1 L2 L3 1. 5 Ohm） ； 2.5 Ohm） ； Chiller water flow switch WIRE # 16AWG COPPER Field wiring must also comply with local codes. YGAS270. Terminal 88 and 89 are used for ALARM （dry contact output. YGAS300 Power Section 1 Control Section Power Section 2 YORK-003 EOEVD Power Section 1 Control Section Power Section 2 1KM3 YORK-003 EOEVD 2KM3 T2 1KM2 1KM1 1QF 2QF 2KM1 2KM2 PE CT1 PE 1MP 2MP PE CT2 PE N N Protective Earth Circuit Breaker Protective Earth Circuit Breaker Protective Earth Protective Earth Field Connection YGAS180SAE \ YGAS210SAE \ YGAS240SAE \ YGAS270SAE \ YGAS300SAE \ YGAS450SAE Main Unit SYS1 Power Centre 13 13 13 13 13 13 13 1 2 3 8 14 11 Control Transformer is used in chiller. Customer supply Customer supply WIRE # 16AWG COPPER POWER (380V-3N-50HZ) Remote stop/start Extra inter lock If no EXT. （ contact impedance is less than 0. YGAS240. please short-cut 14 an 13 POWER (380/400/415V-3N-50HZ) 10 . Terminal 86 and 87 are used for PUMP dry contact output.contact impedance is less than 0.2 Circuit Units: YGAS180. YGAS210. KA7 KA8 Control Center SYS2 Power Centre N1 N1 N1 N1 N1 N1 N1 N1 32 33 34 35 36 85 86 87 88 89 Breaker 1QF 2QF Breaker PE PE L1 L2 L3 WIRE # 16AWG COPPER PE PE L1 L2 L3 1. Main control panel: Power Section 1 Control Section 1 Power Section 2 YORK-003 EOEVD Power Section 1 Control Section 1 Power Section 2 1KM3 YORK-003 EOEVD 2KM3 T2 1KM2 1KM1 1QF 2QF 2KM1 2KM2 PE CT1 PE 1MP 2MP PE CT2 PE N N Protective Earth Circuit Breaker Protective Earth Circuit Breaker Protective Earth Protective Earth Field Connection YGAS180SAE \ YGAS210SAE \ YGAS240SAE \ YGAS270SAE \ YGAS300SAE \ YGAS450SAE Main Unit SYS1 Power Centre 13 13 13 13 13 13 13 1 2 3 8 14 11 Control Transformer is used in chiller. KA7 KA8 Control Center SYS2 Power Centre N1 N1 N1 N1 N1 N1 N1 N1 32 33 34 35 36 85 86 87 88 89 Breaker 1QF 2QF Breaker PE PE L1 L2 L3 WIRE # 16AWG COPPER PE PE L1 L2 L3 1.3 Circuit Units: YGAS450 3 Circuit Units has two panels.contact impedance is less than 0.5 Ohm） ； Chiller water flow switch WIRE # 16AWG COPPER Field wiring must also comply with local codes. Terminal 88 and 89 are used for ALARM （dry contact output. Customer supply Customer supply WIRE # 16AWG COPPER POWER (380V-3N-50HZ) Remote stop/start Extra inter lock If no EXT.5 Ohm） ； 2. a main control panel and an auxiliary control panel. and needs to connect a communication wire between them. please short-cut 14 an 13 POWER (380/400/415V-3N-50HZ) 11 . （ contact impedance is less than 0. Terminal 86 and 87 are used for PUMP dry contact output. 12 . Do not use Aluminum conductors.Auxiliary control panel: Control Section 2 Power Section 3 Control Section 2 Power Section 3 T2 YORK-003 EOEVD KM3 KM1 1QF 1MP CT KM2 PE PE N Protective Earth Circuit Breaker Protective Earth Field Connection Control Transformer is used in chiller. Control Section 2 XT1 13 13 13 13 13 13 13 1 2 3 8 Power Section 3 Circuit Breaker 1QF N N WIRE # 16AWG COPPER 2#FLS Chiller water flow switch PE PE L1 L2 L3 Copper conductors only. Customer supply POWER (380/400/415V-3N-50HZ) Field wiring must also comply with local codes. YGAS120. YGAS150 Control Panel Control Panel 1300 2456 Water Outlet 815 Water Inlet 48 A B C E F G HXm D 2240 P Q R Chiller Model YGAS090 YGAS120 YGAS150 A 1060 1060 1260 B 1134 1228 1628 C 2770 3410 3810 D 150 150 150 Dimensions / mm E F G 3495 3676 760 4493 4676 760 4895 5076 810 H 1000 1000 1100 P 618 700 700 Q 315 304 304 R 615 620 620 Qty m 2 3 3 6-Ø14 Isolator Mounting Holes 8-Ø14 Isolator Mounting Holes YGAS090 Vibration Isolators Distribution CONTROL PANNEL YGAS120 Vibration Isolators Distribution 6 735 963 5 1240 4 8 663 1040 7 710 6 1306.5 5 8-Ø14 Isolator Mounting Holes YGAS150 Vibration Isolators Distribution 8 760 980 7 1518.5 6 1065 5 CONTROL PANNEL 4 2152 3 2 1 CONTROL PANNEL 3 2152 2 1 4 2152 3 2 1 13 .Dimensions 1 Circuit Units: YGAS090. YGAS240. YGAS300 Control Panel 1300 Water Outlet 815 Water Inlet 48 A B C D F G H JXm K LXn E 2240 P Q Chiller Model YGAS180 YGAS210 YGAS240 YGAS270 YGAS300 A 914 1370 1405 1450 1450 B 1015 2372 2232 2424 2591 C 2960 4230 4625 4714 5030 D 4764 7020 7511 7911 8355 Dimensions / mm E F G H 184 5747 5938 760 184 8015 8176 760 184 9015 9200 760 184 9415 9600 810 184 9815 10000 810 Qty J 1020 1000 1000 1000 1100 K 1380 1380 1430 1480 L 1000 1000 1100 1100 P 1120 1100 1120 1120 1120 Q 315 321 337 321 352 R 669 675 657 675 748 m 4 3 3 3 3 n 2 3 3 3 10-Ø14 Isolator Mounting Holes 14-Ø14 Isolator Mounting Holes CONTROL PANNEL YGAS180 Vibration Isolators Distribution YGAS210 Vibration Isolators Distribution 10 535 880.2 Circuit Units: YGAS180.5 9 1150 8 1544 7 1080 6 14 713 890 13 1500 12 900 11 1398.6 13 970 12 958 11 1230 10 1455 9 16-Ø14 Isolator Mounting Holes YGAS300 Vibration Isolators Distribution 16 767 1080 15 900 14 1550 13 1014. YGAS270.5 12 955 11 1230 10 1455 9 16 767 1080 15 900 14 1523.5 12 1600 11 800 10 1350 9 14 CONTROL PANNEL 8 2152 7 6 5 4 3 2 1 CONTROL PANNEL 8 2152 7 6 5 4 3 2 1 8 2152 7 6 5 4 3 2 CONTROL PANNEL 5 2152 4 3 2 1 7 2152 6 5 4 3 2 1 1 R 2456 . YGAS210.5 10 1200 9 720 8 16-Ø14 Isolator Mounting Holes 16-Ø14 Isolator Mounting Holes CONTROL PANNEL YGAS240 Vibration Isolators Distribution YGAS270 Vibration Isolators Distribution 16 710 1050 15 1250 14 955 13 876. YGAS450. The total length of YGAS450 is 15. Note: For 3 Circuit Units.276.3 Circuit Units: YGAS450 Auxiliary Control Panel A B Main Control Panel A B C A-A B-B The structure of the unit near the main control panel of YGAS450 Chillers refers to YGAS300 Chiller. and the structure of the unit near the auxiliary control panel of YGAS450 Chiller refers to YGAS150. there are 16 vibration isolators installed at the base frame of main control panel side (referred to that of YGAS300) and 8 vibration isolators installed in bottom rail of unit frame of auxiliary control panel side (referred to that of YGAS150). 15 . 000 dedicated professionals located in 15 countries and regions has made us the partner of choice for some of the most recognisable structures in Asia and the Pacific. Johnson Controls inaugurated the Annual Energy Efficiency Forum in conjunction with the U. We are also a lead technology and energy-efficiency partner for the Clinton Climate Initiative and its ambitious C40 Large Buildings Retrofit Program. China • Pune. 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