Water-cooled chiller products Climate solution for green environment ! Nicholas

Contents Centrifugal Chiller Flooded Type Screw Chiller DX Type Screw Chiller Screw Chiller with Heat Recovery

Product line-up Centrifugal Midea Water Cooled Chiller Chiller Products Centrifugal Chiller Flooded Type Screw Chiller DX Type Screw Chiller Heat Recovery Screw Chiller

Centrifugal Chiller Centrifugal chiller Refrigeration System Introduction Features & Benefits Refrigeration System Control System Let’s begin with first aspect. Indoor unit installation.

Centrifugal Chiller Introduction LC 1000 M LCM Series Smart Star “Smart Star” Chiller Nominal Cooling Capacity:1000RT 350R-1500RT single head 1500RT-2000RT dual heads 380V/6kV/10kV 50Hz R134a Centrifugal Chiller Refrigerant:R134a Size Cooling Capacity (RT) Small 350,400,450,500,550,600 Middle 650,700,750,800,850,900,950,1000,1100,1200 Big 1300,1400,1500 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Centrifugal Chiller Introduction Applicable Ambient temp. range: 20 ～ 43 ℃ Unit operation range: Min. Max. Evaporator Inlet water temp. ℃ 8 18 Outlet water temp. 5 15 Condenser 19 33 22 41 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Maximum chilled water inlet/outlet Temp. difference: 7 ℃

Centrifugal Chiller Introduction Ordering instruction : Standard: 50 Hz ,380V Wye-Delta starter, 350～1300RT(1230 ～ 4572Kw) 50Hz,10Kv, 600～1500RT(2110 ～ 5276Kw) R134a Single head 50Hz 400/415V need special customize. 50Hz 380V 350-800RT can customize VSD start. 6KV for cooling capacity above 600RT can be customized. 60Hz for cooling capacity above 600RT need special customize. Large temperature difference (9-12 ℃) can be customized. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Environmental Friendly R134a Centrifugal Chiller Features & Benefits Environmental Friendly R134a Chlorine-free, long-term solution Non-ozone depleting potential Lowest toxicity and flammability rating High Reliability Operate above atmospheric pressure Single-stage ,lessen moving part Refrigerant cooled hermetic motor 100% Factory Run-Tested High efficiency Advanced capacity adjustment strategy Latest heat transfer surface 10～100% Capacity adjustment Hermetic Motor Lower inrush current Smaller and lighter than open motors No need AC for the mechanical room. Modular Construction Easy for container load. Easy for transportation and loading Eliminate access problem in the jobsite When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Keyless impeller coupling Low Sound and Vibration Centrifugal Chiller Features & Benefits Keyless coupling Keyless impeller coupling Eliminates stress concentration Longer life span Patent design (ZL01256825.2) Low Sound and Vibration Special engineered gearing Double soundproof gearbox structure Optimized impeller and tunnel design Excellent oil system External oil cooler and oil filter, easy to do maintenance and replacement. High reliability Unmatched oil reclaim system Capacity Adjustment IGV work together with moveable diffuser High part load efficiency Patent design (ZL01256824.4) When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Centrifugal Chiller Refrigeration system Cooling Tower Condenser Compressor Terminal Evaporator When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Orifice

Centrifugal Chiller Refrigeration system Compressor Moveable Diffuser High Oil Tank Motor Rotor Variable Inlet Guide Vanes Motor Shaft Thrust Bearing Balance Pipe Bull Gear Motor Stator When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Impeller Pinion Thrust Bearing Bull Gear Journal Bearing Spraying Pipe Oil Seal Pinion Shaft Labyrinth Seal

Centrifugal Chiller Refrigeration system IGV and diffuser Vanes When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Vanes Diffuser Inlet guide vanes plus moveable diffuser lead to stepless capacity range from 10% to 100% and avoid unit surge, also the construction was awarded by State intellectual property office of P.R.China(No.:ZL01 2 56824.4).

Evaporator and condenser Centrifugal Chiller Refrigeration system Evaporator and condenser Evaporator When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Condenser Latest heat exchanger surface. Fouling factor: 0.086m2 ·℃/kW (0.0005ft2·℉·hr/Btu) (0.0005FPS) Water side design pressure:1.0Mpa. Higher pressure can customize

Centrifugal Chiller Refrigeration system Throttling orifice Condenser Evaporator Throttle Orifice When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Throttle Orifice Oil Reclaim Device When the high pressure liquids flow through orifice, the liquids’ pressure and temperature will be decreased.

Centrifugal Chiller Refrigeration system Oil reclaim device High efficiency oil reclaim system separates oil from mixture completely and returns oil back to compressor. No. Valve Process K2 and K3 K4 K6 K7 K8 K9 1 Manual Separation of refrigerant and oil 〇 × Oil reclaim △ 2 Automatic 3 When oil reclaim system not used When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Note：〇：on ×：off △：less open K1、K5、K10 keep open

Centrifugal Chiller Control System Control cabinet Touchable screen Emergency button Ventilation Fan When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Centrifugal Chiller Control System Control cabinet Air switch Power Current transmitter Power supply PLC Plug Rely Air switch Transmission Modular When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Fan Wire terminal To Earth

Centrifugal Chiller Control System Starter Standard Optional Star-Delta When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Optional Auto Transformer Across the line VSD

Centrifugal Chiller Control System Touch screen Welcome page After power on, enter the welcome page: 1.Press “Enter” ,input the password, if right, goes into the main page When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Centrifugal Chiller Control System Touch screen Main page Display chiller running condition and other function menu Chiller running condition When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Function menu

Centrifugal Chiller Control System Touch screen When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Centrifugal Chiller Control System Network control Communication by RS485 1:1 Host computer system 1:N Host computer system RS 485 RS485 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Max. 32 units/network Communication distance:500m

Flooded Type Screw chiller Introduction Features & Benefits Refrigeration System Control System Let’s begin with first aspect. Indoor unit installation.

Flooded Screw Introduction LS B LG 365 M C F 104-235RT,Single head 265-425RT,Dual heads 380V/400V/415V 50Hz/60Hz R134a LS B LG 365 M C F Flooded type Refrigerant type C R134a; Omit for R22 Design sequence code Nominal cooling capacity (kW) When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Compressor structure type LG：Screw type compressor Compressor structure type B：semi-hermetic Water-cooled chiller

Flooded Screw Introduction Cooling capacity: Cooling capacity(KW) Single head 340,400,455,540,690,720,825 Dual head 915,1000,1110,1200,1300,1385,1450 Applicable Ambient temp. range: 20 ～ 43 ℃ Unit operation range: Chilled water outlet temp. Cooling water inlet temp. 5～15℃ 20～35℃ When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Maximum chilled water inlet/outlet Temp. difference: 7 ℃

Flooded Screw Introduction Ordering instruction : Standard: 50 Hz 380V R134a Wye-Delta starter 4 steps capacity adjustment(25% 50% 75% 100%) 104～425RT(340 ～ 1450Kw) 50Hz 400/415V can be customized. 60Hz need special customize. Orifice plus EXV can be customized. Open type compressor for large cooling capacity (above 500RT)can be customized. Stepless capacity adjustment can be customized. Large temperature difference (9-12 ℃) can be customized. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

User-friendly Operation Interface Twin-Rotor Screw Compressor Flooded Screw Features & Benefits High Efficiency Flooded type evaporator Finned heat exchanger tube 25%,50%,100% capacity control or stepless Environmental Friendly R134a Chlorine-free, long-term solution Non-ozone depleting potential Lowest toxicity and flammability rating Reliability serviceability 100% run-tested for high reliability Orifice plus solenoid valve to throttling Flooded evaporator for easy cleaning Simplified field wiring for easy installation User-friendly Operation Interface PLC control Graphical display Simple operation Twin-Rotor Screw Compressor Advanced 5-6 asymmetry dentiform rotors Each part is well-proportioned and none-gap matching When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Construction —Single head Flooded Screw Refrigeration System Construction —Single head 7 8 9 1 Compressor 2 Oil separator 3 Evaporator 4 Condenser 5 Throttle valve 6 Oil filter 7 Control cabinet 8 Cut valve 9 Safety valve 1 2 3 4 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; 5 6

Construction —Dual head Flooded Screw Refrigeration System Construction —Dual head 6 7 8 1 Oil separator 2 Evaporator 3 Condenser 4 Throttle valve 5 Oil filter 6 Control cabinet 7 Cut valve 8 Safety valve 1 2 3 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; 5 4

Flooded Screw Refrigeration System Refrigeration cycle When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Refrigeration System Compressor Service valve Oil separator Motor cable box Squirrel-cage motor Suction port Capacity adjustment system High precision SKF/FAG zero clearance When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Capacity adjustment slide valve 5-6 Asymmetry dentiform Injector joint Oil filter

Flooded Screw Refrigeration System Oil separator The Oil Separator comes from MANN Germany with reliable quality. The oil content in the gas can be controlled below 3ppm.The oil-gas separating amount is double of other products. The large oil filtering area reduces refrigerant flux speed, and has better separating effect and long lifespan by the secondary reflux technology adopted. The main purpose to add the external oil separator is to improve the separating efficiency and guarantee good lubrication. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Internal oil separator External oil separator

Flooded Screw Refrigeration System Evaporator DX evaporator Flooded evaporator DX evaporator When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Midea Screw Chiller is equipped with high efficiency shell and tube evaporator that are constructed by seamless steel tube with anti-corrosive treatment. The design working pressure for evaporator is1.0MPa, higher pressure vessel can be customized.

Flooded Screw Refrigeration System Condenser Refrigerant inlet Water outlet Water inlet Refrigerant outlet Shell and tube type with refrigerant in the shell and water in the tube . Water side designed pressure is 1.0Mpa. Higher pressure can be customized When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Capacity adjustment—standard Flooded Screw Refrigeration System Capacity adjustment—standard 4-stage adjustment SV Status SV14 (NC) SV15 SV16(NC) 100% OFF 75% ON 50% 25%(startup) On When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Oil is supplied by pressure difference, it should be higher than 1.5 bar. ON: energize, OFF: de-energize

Capacity adjustment—optional Flooded Screw Refrigeration System Capacity adjustment—optional 50%~100% stepless adjustment SV Status SV14 (NO) SV15 (NC) Startup ON Loading OFF Unloading Holding When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Control System PLC Function: The core component of the whole control system, PLC controls the chiller by checking those analog signals such as the outer protection input , temperature , pressure, control signal of the touch screen. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Control System Power protection Function: Inspect the voltage range, phase sequence; to protect the compressor by checking the quality of power . When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Control System Pressure switch Position: Right side of control cabinet. At the back of the High/Low pressure gauge. Function：Make sure the discharge and suction pressure in the safe range. Reset button When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; High pressure switch Low pressure switch

Flooded Screw Control System Water flow switch Position: When installing the water flow switch, need 5 times of diameter away from any bend and the diameter of the pipe must be the same as chiller inlet or out . Function：Check whether the water system works normal or not , to protect the chiller from being damaged due to lack of water. Notice: Please check the water flow direction before installing the water flow switch. It’s a safety switch, cannot be used to start /stop the chiller. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Control System Start cabinet KM1 KM2 KM3 Wiring terminals Contactors: Used for Y- Δ transition When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Y connection: KM1 and KM3 ON Δ connection: KM1 and KM2 ON KM1 KM2 KM3

Flooded Screw Control System Touch screen After the touch screen and the control system is power on, enter the welcome interface. Press anywhere of the welcome page ,then enter the main page. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Flooded Screw Control System Touch screen Dispaly： Buttons: Running status of the chiller/Date and time. Buttons: 1.start/stop 2.System setting 3.alarm 4.Current 5.Parameter check 2 3 4 When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; 5 1

Flooded Screw Control System Touch screen When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

DX type screw chiller DX Type Screw Chiller Features & Benefits Introduction Features & Benefits Let’s begin with first aspect. Indoor unit installation.

DX screw Introduction LS B LG 130 M 37RT-245RT Single stage 275RT-488RT Dual stage 380V/400V/415V 50Hz/60Hz R22 LS B LG 130 M Design series code Nominal cooling capacity (kW) When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Compressor structure type LG:Screw type compressor Compressor structure type B:semi-hermetic Water-cooled chiller

DX screw Introduction Cooling capacity: Cooling capacity(KW) Single head 150,190,270,320,400,485,570,630,740,860 Dual head 970,1060,1145,1260,1370,1490,1620,1720 Applicable Ambient temp. range: 20 ～ 45 ℃ Unit operation range: Chilled water outlet temp. Cooling water inlet temp. 5～15℃ 20～35℃ When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Maximum chilled water inlet/outlet Temp. difference: 7 ℃

DX screw Introduction Product order instruction : Standard: 50 Hz 380V Wye-Delta starter 4 steps capacity adjustment(25% 50% 75% 100%) 37～488RT(150 ～ 1720Kw) 50Hz 400/415V can be customized. 60Hz need special customize. R134a can be customized. Stepless capacity adjustment can be customized. Large temperature difference (9-12 ℃) can be customized. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

DX screw Features & Benefits Matured control logic serviceability Reliability Matured control logic No oil recovery problem 100% run-tested for high reliability Simplified field wiring for easy installation User-friendly Operation Interface PLC controller Graphical display Simple operation Twin-Rotor Screw Compressor Advanced 5-6 asymmetry dentiform rotors Each part is well-proportioned and none-gap matching Easy and fast installation The unit can be placed in service only after being connected with power and water supply in the jobsite When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Heat Recovery Screw Chiller Let’s begin with first aspect. Indoor unit installation.

Heat recovery Introduction H LS B LG 130 M Water-cooled chiller 40RT-245RT Single stage 275RT-488RT Dual stage 380V/400V/415V 50Hz/60Hz R22 LS B LG 130 M H Heat recovery type Design series code Nominal cooling capacity (kW) When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Compressor structure type LG Screw type compressor Compressor structure type B semi-hermetic Water-cooled chiller

Heat recovery Introduction Cooling capacity: Cooling capacity(KW) Single head 150,190,270,320,400,485,570,630,740,860 Dual head 970,1060,1145,1260,1370,1490,1620,1720 Applicable Ambient temp. range: 20 ～ 45 ℃ Hot water temperature: In a one way system hot water temperature can reach 45℃. In a circulate system hot water temperature can reach 50℃ or even higher. Recovery heat:30% of cooling capacity. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Heat recovery Introduction Product order instruction : Standard: 50 Hz 380V Wye-Delta starter 35～40℃ hot water temperature 4 steps capacity adjustment(25% 50% 75% 100%) 40～488RT(150 ～ 1720Kw) 50Hz 400/415V can be customized. 60Hz need special customize. Stepless capacity adjustment can be customized. 100% heat recovery can be customized. When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit;

Beijing Capital Airport Reference projects Beijing Capital Airport East Building West Building When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Terminal 3 of the Beijing Capital International Airport, China 4 units 1000RT Centrifugal Chiller 6 units 700RT Centrifugal Chiller 2 units 500RT Centrifugal Chiller 1 units 350RT Screw Chiller

Reference projects Exhibition Hall Shanghai Expo Exhibition Hall A09 and A10 5 units of 550RT 10KV High voltage centrifugal chiller

Reference projects Ramada Hotel Ramada Hotel ,Foshan, China When install the indoor unit ,we need to pay attention to some points as below : We’d better to use plumb bob to determine the location of indoor unit; Ramada Hotel ,Foshan, China 2 units 800RT centrifugal chiller 1 units 500RT centrifugal chiller 1 units 1390KW screw chiller

Thank you!