Contents 1. MODELS LIST 2.NOMENCLATURE 3.FEATURES 4.PRODUCT DATA 5.PERFORMANCE CORRECTION 6.ANTIFREEZE 7.INSTALLATION 8.ELECTRICAL DATA 9. ELECTRICAL DIAGRAM 10.FIELD WIRING DIAGRAM 11.MICROPROCESSOR CONTROLLER 12.WIRED CONTROLLER 13.APPLICATION DATA 2 3 3 6 8 8 9 11 12 15 16 17 20 1 MODELS LIST Nominal Capacity Ton 17 23 37 17 23 37 Refrigerant R22 Model Model Name LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H Power Supply Ph, V, Hz 3 380 50 3 380 50 3 380 50 3 380 60 3 380 60 3 380 60 2 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 2 NOMENCLATURE LS QW F 60 T3 M B - H Model Signification Options LS QW F 60 T3 Water chiller Scroll compressor Air cooled Nominal Cooling Capacity Super high ambient operation 52 /125 60=60kW= 205 kbtu/h 80=80kW= 273 kbtu/h 130=130kW=443kBtu/h 3 M Modular B Development series number H Voltage FEATURES 3.1 Brief Introduction H 380V-3Ph- 60Hz M 380V-3Ph- 60Hz The units with dual refrigerantting circuits from 60 to 130 kw have outstanding benefits that make this product effective for a variety of applications. The units are shipped from the factory completely ready for installation and use. Each unit is pressure-tested, evacuated, and fully charged with R22, and has an initial oil charge. After assembly, a complete operation test is performed with water flowing through the cooler to assure that the refrigeration circuit operates correctly. The units can be installed on the rooftop, ground outside and so on instead of being equipped within a special machine room. It can be widely applied in newbuilt or reconstructed industry and civil-building project, such as hotel, apartment, restaurant, office building, shopping mall, theater, gymnasium, hospital and so on, as well as supplies required cooling water for factories in technical process of producing, so it's especially suitable for some special locations around where there are high-level requirements for noise and environments and cooling tower are difficult to install. 3.2 Standard Specifications High Efficiency Full Load Operation Utilizing new scroll compressor technology, the chillers meet or exceed the performance requirements of ASHRAE 90.1. All system components are selected for optimum performance, including the condenser coil areas and evaporator sizes. GREE Central Air Conditioners 3
Excellent Part Load Performance By using two compressors on each chiller, unloading characteristics and part load performance are outstanding. Integrated part load value (IPLV) is a part load performance indicator as outlined in ARI Standard 550/590-1998. The IPLV rating compares the performance of different chillers under identical conditions. When the IPLV is listed in EER (Energy Efficiency Ratio), a higher EER will indicate that the chiller's overall performance is better. Compact Design with Small Footprint The chillers have a reputation for a compact design and small footprint. A small footprint can save installation costs by minimizing the size of the concrete mounting pad or reduces the amount of structural steel if the unit is mounted on the rooftop. Quiet Operation The chillers are designed with quiet scroll compressors. Fans are selected for good performance and lower sound levels. The attention to detail with sound is critical in the design. Small issues such as refrigerant piping, supports for piping, securing components to the structure are all important to making a quiet product. We proudly publish our sound performance. Superior Controls GREE has provided the latest technology in controlling the chillers. The new controller provides a user friendly environment for the operator. The control logic is designed to provide maximum efficiency, to help provide continuing operation in unusual operating conditions through proactive controls, and to provide a history of conditions to aid in problem resolutions. Compressors These rugged hermetic compressors are constructed with an integral cast iron frame, cast iron scrolls, three Teflon impregnated bearings, and three oil filtration devices for each compressor. One to sixteen compressors can run, depending on the load of the system, resulting in excellent Part-load efficiency. Each refrigerant circuit has specially designed oil and gas equalization lines to control oil migration. The design also offers radial and axial compliance, a large internal volume for liquid handling, a removable suction screen, and a rotary dirt trap and oil screen. In addition, the compressor is self-compensating for wear, handles moderate liquid slugging, and inherently yields high efficiency. This well protected compressor includes a solid-state motor protection module, 4 individual motor winding sensors, a patented internal discharge temperature probe, and a patented shutdown feature that prevents reverse rotation. An internal discharge check valve helps prevent shutdown noise and comes standard with high and low pressure taps with Schrader valves, a sight glass, an oil level adjustment valve, and an off cycle crankcase heater. Units are available in 60 Hertz with voltage configurations from 342 to 420 volts, operating at 3550 rpm. 4 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide Evaporator The evaporator is direct expansion, shell-and-tube type with water flowing in the baffled shell side and refrigerant flowing through the tubes. Two independent refrigerant circuits within the evaporator serve the unit's dual refrigerant circuits. The evaporator has a carbon steel shell and seamless high efficiency copper tubes roller expanded into a carbon steel tube sheet. Refrigerant heads are carbon steel with multi-pass baffles to provide oil return and are removable to permit access to the tubes from either end. For water removal, 10mm vent and drain plugs are provided on the top and bottom of the shell. An ambient air thermostat controls the heater cable. The fitted and glued in place insulation has a K factor of 0.28. The refrigerant side maximum working pressure is 2068 kpa. The water side working pressure is 1048 kpa. Condenser Condenser coils have internally enhanced seamless copper tubes arranged in a staggered row pattern. The coils are mechanically expanded into flat aluminum fins with full fin collars. A variety of optional coil material and coatings are available for corrosive atmospheres. Fans-The condenser fans are composed of corrosion resistant aluminum hub and glass-fiberreinforced polypropylene composite blades molded into a low noise airfoil section. They are designed for maximum efficiency and are statically and dynamically balanced for vibration-free operation. They are directly driven by independent motors, and positioned for vertical air discharge. The fan guards are constructed of heavy-gauge, rust-resistant, coated steel. All blades are statically and dynamically balanced for vibration-free operation. Motors-The fan motors are totally enclosed air-wver, squirrel-cage type, current protected. They feature ball bearings that are double-sealed and permanently lubricated. 3.3 Standard Accessories Unit on-off switch: ON-OFF switch is provided for manually switching the unit control circuit. Indicator lights: LED lights indicate power on to unit, running state and fault indications due to safety devices. Filter drier: Refrigeranting circuits are kept free of moisture, sludge, acid and oil contamination with it. 3.4 Standard Control & Safety Devices The chiller's Unit Control Module is an innovative, modular microprocessor control design. It coordinates the actions of the chiller in an efficient manner and provides stand-alone operation of the unit. A Human Interface Panel is a standard component of the Chiller. Access to all unit controls is via the Human Interface Panel. Compressor In-built protection device: Motor winding temperature, discharge gas temperature and phase reversal for direction of rotation. Crankcase heaters: Protects the unit against refrigerant migration, oil dilution and potential compressor failure. High pressure switch: Provides protection in case of excessive discharge press-ure. Low pressure switch: Provides protection in case of unsafe low suction pressure. GREE Central Air Conditioners 5
4 PRODUCT DATA 4.1 Ratings Model LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H Capacity kw / kbtu/h 60 / 205 80 / 273 130 / 443 60 / 205 80 / 273 130 / 443 EER 10.2 10.4 10.2 10.2 10.4 10.2 EER=Energy Efficiency Ratio at full load-the cooling capacity in Btu's per hour(btu/h) divided by the power input in watts, expressed in Btu/h per watts((btu/h)/watt). 4.2 UNIT APPLICATION DATA Voltage Variation Min./Max. Ambient Air on Condenser coil Min./Max. ( ) 380V-3Ph-50/60Hz 342/420 18/52 ( 65/125) 6 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 4.3 PHYSICAL DATA Models LSQWF MT3/B-H 60 80 130 60 LSQWF MT3/B-M 80 130 Nominal Cooling Capacity kw KkBtu/h TR 60 205 17 80 273 23 130 443 37 60 205 17 80 273 23 130 443 37 Input Power kw 20 26 40.5 20 26 40.5 Power Supply 380V-3Ph-60Hz Running Control Microcomputer auto control, running status display, abnormal status alarm Safety Apparatus High/low pressure protection, discharge temp. protection,motor overload protection, anti-freeze, water flow protection, phase-sequence protection, compressor overload protection, compressor inset protection Compressor Type Hermitic Scroll Compressor Refrigerant Type R22 Water Flow Mm/h 3 GPM 10.3 45.3 13.7 60.3 22.3 98.4 10.3 45.3 13.7 60.3 22.3 98.4 Cooler Loss of Pressure Heat Exchanger Max. Pressure kpa MPa 10 15 17.5 10 Shell and Tube Evaporator 1.0 15 17.5 Water In/Out Pipe Diameter mm DN65 DN65 DN80 DN65 DN65 DN80 Conde -nser Heat Exchanger Fan Motor Power Input kw 1.15X2 Finned Coil Type Condenser 1.15X2 0.75X4 1.15X2 1.15X2 0.75X4 Dimen -sion Width Depth Height mm mm mm 2140 2140 2410 1900 2240 2140 2140 2410 1900 2240 Net Weights kg 1000 1800 1000 1800 Operation Weights kg 1050 1150 1860 1050 1150 1860 NOTE: 1 mm=0.0394 inch GREE Central Air Conditioners 7
5 PERFORMANCE CORRECTION Performance Correction Leaving Chilled Water ( ) 25(77) 30(86) Ambient Temperature ( ) 35(95) 40(104) 45(113) 50(122) 55(131) 5(41) 1.07 1.00 0.94 0.84 0.81 0.78 0.74 6(42.8) 1.10 1.03 0.97 0.87 0.83 0.79 0.75 7(44.6) 1.14 1.07 1.00 0.91 0.86 0.82 0.77 8(46.4) 1.17 1.10 1.03 0.94 0.88 0.83 0.78 9(48.2) 1.20 1.13 1.06 0.98 0.91 0.85 0.79 10(50) 1.23 1.16 1.09 1.01 0.93 0.87 0.81 11(51.8) 1.27 1.19 1.12 1.04 0.96 0.89 0.82 12(53.6) 1.31 1.23 1.15 1.07 0.99 0.91 0.83 13(55.4) 1.34 1.26 1.17 1.09 1.01 0.93 0.85 14(57.2) 1.37 1.29 1.20 1.12 1.03 0.95 0.87 15(59) 1.41 1.32 1.23 1.14 1.06 0.98 0.89 Item Cooling Water side Outlet water temp. Difference of the in/outlet water temp. Air side Ambient temp. Db 5~ 15 2.5 ~ 8 18 ~ 52 6 ANTIFREEZE Ethylene Glycol Factors The units can operate with a leaving chilled fluid temperature from of42 to 60 (5 ~16 ) A glycol solution is required when leaving chilled fluid temperature is below 4.5.The use of glycol will reduce the performance of the unit depending on concentration. % by Weight 10 20 30 40 50 Freezing Point -3.3(26) -7.8(18) -13.9(7) -21.7(-7) -33.3(-29) Ambient Temperature 8.3(47) -1.7(29) -6.7(20) -16.7(2) -26.7(-16) Cooling Capacity Correction Factor 0.998 0.993 0.987 0.980 0.973 Water flow Correction Factor 1.036 1.060 1.092 1.132 1.182 Pressure Drop Correction Factor 1.07 1.10 1.18 1.24 1.30 NOTE: Ethylene and propylene glycol ratio is the scope of Standard ARI 550/590-98 certification program. 8 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 7 INSTALLATION 7.1 Dimensions F C Water Outlet Water Inlet D E A B Model LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H A 2410 2410 B 1900 1900 C 2140 2140 2240 2140 2140 2240 D 1300 1300 1560 1300 1300 1560 E 400 400 425 400 400 425 F 320 320 395 320 320 395 7.2 Rigging Instruction Attention to Tiggers The center of gravity is not along unit center line. Ensure that the center of gravity aligns with the main lifting point before lifting. Use spreader bar when rigging, to prevent the slings during the unit. Caution All panels should be in place when rigging. Care must be taken to avoid damage to the coils during handling. Insert packing material between coils and slings as necessary. GREE Central Air Conditioners 9
LIFT LIFT Spreader Bar PROPER CLEARANCE INTERANCE TO BE PROVIDED 7.3 Mounting Location R4 R3 D C R1 R2 B A Model LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H A 2410 2410 B 1600 1600 2200 1600 1600 2200 C 1900 1900 D 1064 1064 1860 1064 1064 1860 10 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 7.4 Load Distribution LOAD DISTRIBUTION (kg) Model Model LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H R1 220 270 430 220 270 430 R2 220 270 430 220 270 430 R3 280 280 470 280 280 470 R4 280 280 470 280 280 470 7.5 Installation Interspace 2000 1000 1000 2000 2000 2000 2000 2000 2000 2000 8 ELECTRICAL DATA Model LSQWF60MT3/B-M LSQWF80MT3/B-M LSQWF130MT3/B-M LSQWF60MT3/B-H LSQWF80MT3/B-H LSQWF130MT3/B-H Area of Electrical Wire 2 25mm 2 35mm 2 50mm 2 25mm 2 35mm 2 50mm GREE Central Air Conditioners 11
9 ELECTRICAL DIAGRAM 9.1LSQWF60MT3/B-H LSQWF60MT3/B-M 12 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 9.2LSQWF80MT3/B-H LSQWF80MT3/B-M GREE Central Air Conditioners 13
9.3LSQWHF130MT3/B-H LSQWF130MT3/B-M 14 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 10 FIELD WIRING DIAGRAM ELECTRIC BOX MAIN POWER ENTRANCE FIELD CONTROL WIRING ENTRANCE RS485 2 WATER FLOW SWITCH 24V GND L N GREE Central Air Conditioners 15
Note 1.use the 4-core communication wires to connect each modules between X2 X3.use a 2 -core 2X1mm signal wires to connect the terminal 34 35 between each modules. Referrence with the diagram shown above. 2.use a 2-core 2X1mm signal wires to connect the Water flow switch with the Main module's terminal 34;35.Referrence with the diagram shown above. 3.use a 4-core 4X10mm~35mm wires to connect each module terminal Tb1 L1 L2 L3 N together.referrence with the diagram shown above. 4.use a 2-core 2X1mm wires to connect the pump relay with the Main module terminaltb4-12;n together.referrence with the diagram hownabove. o Meter ain module power module power CODE ANNORATE Q-Q10:3PHASE BREAKER KM3-KM4:CANTACTOR Q12:SINGLE PHASE BREAKER HL 1-3:INDICATOR LIGHT 11MICROPROCESSOR CONTROLLER 1. Automatic control of compressor start/stop, anti-coincidence and anti-recycle timers, automatic pump down shutdown, condenser fans, evaporator pump, evaporator heater, unit alarm contacts, and chiller operation from 14 to 125 (-10 to 52 ) ambient. Automatic reset to normal chiller operation after power failure. 2. Software stored in non-volatile memory, with programmed set-points retained in lithium battery backed real time clock (RTC) memory for minimum 5 years. 3. Liquid Crystal Display, descriptions in English, numeric data in Metric units. Sealed keypad with sections for set-points, Display/Print, Entry, Unit Options & clock, and On/Off Switch. 4.Programmable set-points (within Manufacturer limits): chilled liquid temperature set-point and range, remote reset temperature range, set daily schedule/holiday for start/stop, manual override for servicing, low and high ambient cutouts, number of compressors, low liquid temperature cutout, low suction pressure cutout, high discharge pressure cutout, anti-recycle timer (compressor start cycle time), and anti-coincident timer (delay compressor starts). 16 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 5. Display Data: Return and leaving liquid temperatures, low leaving liquid temperature cut-out setting, outdoor air temperature, metric data, suction pressure cutout setting, each system suction pressure, discharge pressure, liquid temperature reset, anti-recycle timer status for each compressor, anti-coincident system start timer condition, compressor run status, no cooling load condition, day, date and time, daily start/stop times, automatic or manual system lead/lag control, lead system definition, compressor starts/operating hours. 6. System Safeties: Shall cause individual compressor systems to perform auto shut down; manual reset required after the third trip in 90 minutes. Includes: high discharge pressure, low suction pressure, high pressure switch, and motor protector. Compressor motor protector shall protect against damage due to high input current or thermal overload of windings. 7. Unit Safeties: Shall be automatic reset and cause compressors to shut down if low ambient, low leaving chilled liquid temperature, under voltage, and flow switch operation. Contractor shall provide flow switch and wiring per chiller manufacturer requirements. 8. Alarm Contacts: Low ambient, low leaving chilled liquid temperature, low voltage, and high discharge pressure, and low suction pressure. 12 WIRED CONTROLLER 12.1 Operation View 1 Power XXXX-XX-XX XX:XX Cooling only Heat-pump 2 Run Cool On Heat On/Cool Off /Heat Off X Modules 3 Error Manual/Timer Mon. 10 On/of Reset Exit Confirm 4 5 6 7 8 9 GREE Central Air Conditioners 17
NO. Name Function description 1 Power Indicator Green If the power of the display board is on, Power Indicator will be lighten, or else it is off. 2 Run Indicator Green If the display board is started, Run Indicator will be lighted, or else it won' t. 3 Error Indicator Red If the error happens, Error Indicator will be lighted, or else it won't. 4 5 6 On/Off Button Reset Button Button Switch on/off the control units. n the standby state, press this button ( for 3 second) to start the unit, or press it (for 3sec.) to stop the unit in the operating state. Press this button (for 3sec.), the screen will show full-screen content and the error show will be eliminated, at the same time the system will check the error again. When selecting the menu, press this button to move an cursor upward or left. When modifying the data, press this button to add the numerical value. 7 Button When selecting the menu, press this button to move an cursor downward or right. When modifying the data, press this button to decrease the numerical value. 8 Exit Button Press this button to return to the previous menu. 9 Confirm Button When selecting the menu, press this button to confirm the selection and go into the next menu; When modifying the parameters, press this button to confirm the parameter and move the cursor. 10 LCD The area for the information display. 18 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 12.2 Menu Structure of Controller Clock Setup Timer Setup Water-out T XX Startup Water-in T XX Main Menu Module View User's Setup Run Mode Sound Backlight Auxiliary Heat Auto-Antifreeze Module1 Module2 Module3 Module4 Module5 Module6 State View Temp. View Freeze T XX Reference T XX Defrost T1XX Defrost T2 XX Compressor 1 Compressor 2 Fan1 Fan2 4-way Valve 1 4-way Valve 2 Module7 System State Module8 Parameter Setup Version Error Query Debug Function GREE Central Air Conditioners 19
13 ACCESSORIES S =Standard O=Optional F =Field supplied Model Accessories Name Cooling only Heat pump 1 Module unit S S 2 Display board S but need S booking S but need S booking 3 Four-core control connection cord (3 meters) S S 4 Three-core signal cable (3 meters) S S 5 Water flow switch and water flow switch control board S S 6 Electric control box FP PF 7 Auxiliary electric heater ---- _ O 8 Power connection wire FP PF 9 Control connection cord FP PF 10 Flexible joint FP PF 11 Thermometer FP PF 12 Pressure gauge FP PF 13 Water tank FP PF 20 GREE Central Air Conditioners
Air-Cooled Scroll Chiller Technical Sales Guide 14 APPLICATION DATA Unit Location The chillers are designed for outdoor installation. When selecting a site for installation, be guided by the following conditions: 1. For outdoor locations of the unit, select a place having an adequate supply of fresh air for the condenser. 2. Avoid locations beneath windows or between structures where normal operating sounds may be objectionable. 3. Installation sites may be either on a roof, or on the ground. 4. The condenser fans are the propeller-type, and are not recommended for use with duct work in the condenser air stream. 5. When it is desirable to surround the unit(s), it is recommended that the screening be able to pass the required chiller CFM without exceeding 0.1" of water external static pressure. 6.Recommended clearances for units are given in DIMENSIONS. When the available space is less, the unit(s) must be equipped with the discharge pressure transducer option to permit high pressure unloading in the event that air recirculation were to occur. Foundation The unit should be mounted on a flat and level foundation, ground or roof, capable of supporting the entire operating weight of the unit.. Operating weights are given in the Dimensions. For ground level installations, precautions should be taken to protect the unit from being tampered by or injuring to unauthorized persons. Screws on access panels will prevent casual tampering; however, further safety precautions, such as unit enclosure options, a fencedin enclosure, or locking devices on the panels may be advisable. Check local authorities for safety regulations. Chilled Liquid Piping The chilled liquid piping system should be laid out so that the circulating pump dis ch arges into the cooler. The inlet and outlet cooler liquid connections are given in Dimensions. Delivery and Handling A. Unit shall be delivered to job site fully assembled, and charged with refrigerant and oil by the Manufacturer. B. Unit shall be stored and handled according to the Manufacturer s instructions. Leveling Unit Unit must be leveled when installed to ensure proper oil return to the compressors. Fluid Temperature Maximum leaving chilled fluid temperature for unit is 59 (15 ). For conti-nuous operation, it is recommended that inlet fluid temperature does not exceed 86 (30 ) ( If continuous operation is required for inlet water temperature above 86 (30 ), please refer to GREE factory). Minimum leaving chilled fluid temperature for standard unit is 38 (3.3 ) (For lower leaving temperature contact GREE factory). GREE Central Air Conditioners 21
Cooler Flow Range: The cooler can operate with a leaving chilled fluid temperature from of42 to 60 (5 ~16 ) Maximum Cooler Flow It Will be based on Minimum permissible AT across the cooler 5.4 (-15 ). Cooler protection A protection against low ambient freeze-up is required for ambient temperatures below 32 (0 ). Protection should be in the form of: Inhibited ethylene glycol or any other suitable glycol. Condenser Airflow Any restrictions on units fan airflow will affect unit capacity, condenser head pres-sure, and compressor power input. Such restrictions (i.e. not providing vertical clear-ance or lateral clearance, insufficient unit-to-unit clearance ) will cause warm air rec-irclation or coil starvation. Minimum required operational and maintenance clearan-ces around the unit are shown in the figure below. 22 GREE Central Air Conditioners