DC inverter VRF presentation

Transcription

1 DC inverter VRF presentation NINGBO DEKON REFRIGERATION EQUIPMENT CO., LTD Wangchun Industrial Park, Yinzhou district,ningbo, China. Tel: Mob: Copyrights 2007 AUX Group

2 Appearance 8HP/10HP/12HP 14HP/16HP

3 Modular Design 50~64HP 34~48HP 48HP 18~32HP 8~16HP 5 Basic module:8/10/12/14/16 HP; Free combination; Capacity increase with 2HP,up to 64HP. 3~ 380,50HZ; 3~ 380,50HZ

4 1.Patented oil return 2.Accurate control Stable & Reliable 3.Electrical safety 5.Reliability testing 4.Key components

5 I. Patented oil return technology Oil balance between compressors in one unit: Using throwing oil and patented reticular filter tech., patented oil/gas separator, reserved oil tank, ensure oil balance between compressors in each ODU. No oil balance pipe between ODUs. Adopt patented oil separator tech., to control the oil balance between ODUs, no need to connect the oil balance pipe between ODUs.

6 1. Compressor throwing oil tech. Suction pipe Discharge pipe Throwing oil pipe Oil tank There is a throwing oil pipe outside compressor. If the oil in the inner tank is too much, oil will be discharged to the oil separator through the throwing oil pipe automatically, till the oil volume in the tank reach The available level. When the oil level is higher than the throwing oil point.

7 2.Patented reticular filter oil return tech. Oil separator Efficiency:99% Patented oil return tech.: oil separator reclaim oil to compressor, ensure oil balance between compressors. Compressor 1 Compressor 2 Compressor 3

8 3. patented oil/gas separation technology Oil separating ratio is up to 99%, that make sure there are enough oil in the compressor, If the oil is too much, it will be discharged to the system by the throwing oil pipe automatically.

9 4. Dynamic oil return control According to compressor running frequency, oil return every 3~8 h dynamically, with 180s each time. Make sure the system stable and enhance the heat exchanging efficiency.

10 5.No oil balance pipe between ODUs Adopt patent oil separation tech., redundant oil will be discharge to the system. Plus dynamical oil return control, realize oil & gas balance between ODUs automatically. stable\reliable Hi-efficiency No Oil balance pipe Gas pipe Liquid pipe Easy installation

11 II. Accurate control Compressor capacity output: adopt PI arithmetic to calculate indoor capacity requirement every 5s,and transmit it every 40s, then adjust the compressor output in time, also distribute the refrigerant accurately. So that indoor temp. control get more precisely and system running get more reliable and efficient.

12 1.Rapid Cooling/Heating Tc( ) (10HP unit) 120s to 100% capacity In Fi In Fi In Fi (48HP modulation) 180s to 100% capacity 0 00:00 00:05 00:10 00:15 00:20 00:25 00:30 00:35 00:40 00:45 00:50 Time(min) 時間 ( 分 ) DC inverter compressor start with low speed at 30Hz,low noise, produce small impact to the power grid. Calculate capacity after starting, then compressor run with frequency rising quickly.so that get cool/warm fast.

13 2. low ambient temp. cooling/high ambient heating Using solenoid valve in liquid pipe and gas pipe, to adjust the heat exchange area of condenser, then enhance system matching ration at low ambient cooling/high ambient heating, insure the system run more stable and hi-efficiency. Double condenser structure design

14 3. Intelligent defrosting control intelligent defrosting function, the AC defrost more thoroughly, heating more stable, feel more comfortable. Intelligent defrosting curve Normal defrosting curve Heating capacity time M :intelligent defrosting curve.

15 3. Intelligent defrosting control Heating capacity The best defrost point Defrosting 10 minutes after first starting up,if ambient temp enter into optimum frost/defrost circulate. Time Intelligent defrosting control,matching hi frequency-full load defrosting running,more impersonal,more fast.

16 III. Electric safety Mitsubishi PM series Inverter module Filtering capacitor Main PCB Silicon rectifier bridge ABB contactor Reactor Filter

17 1. Wide voltage design 435V 380V GB ±10% ARV ±15% 325V In country with unstable voltage, ARV can also run stable. 2.. Anti-electromagnetic interference. Using professional filter, passed EMC certification, the machine can run at complex EMI environment.

18 VI. High quality component 1.High pressure side DC inverter compressor Low temp. starting: more reliable, hi-efficiency, more reasonable lubrication to scroll; match advanced 180 degree sine curve driver and active PFC tech., save 25% energy than traditional AC motor.

19 2.Patented EXV control technology EXV Brand:FUJIKOKI, 500 step pulse control, according to the evaporator superheat to adjust the opening of EXV, and accurately control the refrigerant flow.

20 3. Aviation fan structure design Plane engine fan ARV fan Aviation fan structure:less air flow pulsation, ensure enough heat exchanging; Fan speed is controlled automatically according to the ambient temp., the lowest noise is 40dB(A) at night. And the biggest ESP can reach to 80Pa.

21 4. Super cooling design Normal heat exchanger structure Heat exchanger structure after optimized Condenser circuit optimize design, guarantee super cooling

22 Special circuit design guarantee 8-11 degree super-cooling Advantage of super-cooling:: 1 increase cooling capacity per unit refrigerant, increase efficiency; 2 increase refrigerant transfer stability, max. pipe length can be 170m; 3 decrease refrigerant flash resistance in the copper pipe,the performance of farthest indoor unit is better; 4 EXV adjust is more accurate, and decrease refrigerant throttle noise.

23 V. Reliability test 2 years development and test,240 spare parts checking, system reliable test,comp.. driver reliable test,electric reliable test,ensure the long life running reliable. 120HP performance lab 20HP enthalpy difference lab

24 V. Reliability test Pipe length matching test, Ensure the heat difference of all liquid pipe come from condenser is less than 2

25 Oil balance test: ensure the oil level of each compressor is in safe range in any case.

26 1.Energy saving/comfortable 2.Various indoor units 5.Project reference Value to customer 3.Project apply 4.Intelligent control

27 I. Save energy IPLV(W/W):4.35

28 Temp. is more stable, feel more comfortable adopt 500 step EXV to adjust the refrigerant flow accurately, the room temp. get more stable, can be in ± 0.5 C

29 II. Various indoor units Wall-mounted Slim duct Low ESP duct Ceiling& floor 7 series,76 models Four-way cassette Mid ESP duct Hi ESP duct

30

31 Four-way cassette Indoor unit EXV inside the unit, easy installation Fresh air intake function Drainage pump inside up to 750mm Fresh air intake EXV inside

32 Ceiling&Floor Indoor unit EXV inside the unit Comfortable air delivery adjustment : horizontal and vertical Powerful centrifugal fan with low noise Flexible installation: vertical or horizontal

33 Slim Duct Indoor unit 180mm EXV inside the unit Ultra thin and concealed design, the thickness of indoor unit is only 180mm Low noise to 26dB with centrifugal fan

34 Low Pressure Duct Indoor unit Optional ( BTU) EXV inside the unit Concealed installation,combined with indoor decoration perfectly. Static pressure 12Pa/30Pa adjustable. Air return: from bottom or back Many kinds of accessories for different kind of application

35 Middle Pressure Duct Indoor unit Optional ( BTU) EXV inside the unit Concealed installation, noble and elegant. ESP 50Pa/80Pa adjustable, more comfortable. Flexible installation. Standard components: air filter & air return bellow. Many kinds of accessories for different kind of application

36 High Pressure Duct Indoor unit High ESP design, ESP 196Pa,, long distance air supply Suitable for 6.5m super high ceiling air supply

37 Wall-mounted Indoor unit EXV inside the unit Anti-mold filter Quiet operation Beautiful appearance Tow kind of panel can be choosed

38 III. Project apply 1 ODU s s capacity can be less than IDU s IDU capacity/odu capacity Ratio up to 130%

39 Height difference :50/60m(outdoo outdoor upon/below) 2 Long pipe installation Drop height between indoor unit and outdoor unit The first branch Outdoor unit Max. total longth:1000m Max. pipe longth:170m Equivalent length of the farthest auxiliary pipe Equivalent length L of pipe from the first branch to the farthest indoor unit Max. Height difference between indoor units:15m Indoor unit From 1 st branch to farthest indoor units:<40m

40 3 ODU installation freely No oil balance pipe need to be connected between ODUs,, that s easy for installation.

41 Central control IV. Intelligent control Central controller Central control switchboard (adapter) 1 central controller can control max. 64 indoor,1computer can max. control 64*64 indoor. Wired controller Wired controller remote controller Central control switchboard (adapter) Net control Wired controller. Wired controller can control max. 16 indoor in one group

42 1 Wiring easily The communication between ODUs,between IDU and ODU,between IDU and wired controller,all of them adopt RS485 protocol, by using 2-core shield wire,, easy installation and not easy to make mistake.

43 2.. Easy control Remote controller Wired controller Central controller Weekly timer Weekly timer and central controller have the same casing Central controller: Up to 64 indoor units can be controlled

44 3. Easy to set the indoor unit address When VRF AC be installed, it should be set IDU address. We can do it by remote controller/wired controller. IDU address setting: very easy for us. Dial-up on the ODU PCB, then set the IDU address by remote controller or wired controller one by one.

45 4. Easy to commissioning. With PC check software,it s easy to check the data and problem. Monitoring device Monitoring Software Indoor unit Computer

46 5. Easy to central control Central control software can indicate the status of the indoor units, And can Central control the system by sending signal through the software.

47 V. Project reference

48 NINGBO DEKON REFRIGERATION EQUIPMENT CO., LTD Add:Jucai Rd,Wangchun Industrial Park, Ningbo,. P.R China TEL: Mob1: Contact1: Simon) Mob2: Contact2: Tina) Copyrights 2007 AUX Group