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DC Inverter VRF MDV4+

V4Plus VRF English- Features and Advantages

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Page 1: V4Plus VRF English- Features and Advantages

DC Inverter VRF MDV4+

Page 2: V4Plus VRF English- Features and Advantages

V4+Outdoor Product Range

8/10HP 12/14/16HP

1. 5 basic modules from 8~16HP with 2 casing2 Full range capacity is from 8HP~ 64HP with 2HP increase2. Full range capacity is from 8HP  64HP with 2HP increase

Page 3: V4Plus VRF English- Features and Advantages

V4+Indoor Product Range

Same product 

New electric 

rangecontrol

Page 4: V4Plus VRF English- Features and Advantages

V4+ImprovementsWhat improvements were realized

Efficiency and performance

Control and function

Installation and maintenanceInstallation and maintenance

Page 5: V4Plus VRF English- Features and Advantages

Efficiency and PerformanceKey component of the outdoor unit

New outdoor fan design Air volume increase 10%

Strengthen heat exchange design

Heat exchange efficiency increase 10% Increase 25%

t MDV3

High efficiency DC i t Save power 25%

to MDV3Increase 10%

to MDV4inverter compressor Save power 25%

High efficiency DC Fan motor

Save power 50%

DC technology and optimized piping design, improve the efficiency very much

Page 6: V4Plus VRF English- Features and Advantages

Efficiency and Performance

High Efficiency DC fan motor

Adopt the advancedDC fan motor Load-Rev curve

DC fan 18 level vector adjust

AC fan 2-3 level adjust

Reach max energysaving to 90%in little loadin little load

Load(%)

According to the running load and system pressure ,it controls the speed of DC fan to achieve the min. energy consumption and best performanceperformance.

Page 7: V4Plus VRF English- Features and Advantages

Efficiency and Performance• EER UP TO 4.29(8HP)• AVERAGE EER UP TO 3 67AVERAGE EER UP TO 3.67

Page 8: V4Plus VRF English- Features and Advantages

Efficiency and Performance• COP UP TO 4.39(8HP)• AVERAGE COP UP TO4 12AVERAGE COP UP TO4.12

Page 9: V4Plus VRF English- Features and Advantages

Efficiency and PerformanceWider operation temp. range

‐‐55 4848coolingcooling

‐‐2020 2424heatingheating

In cold In cold winter……winter……

Page 10: V4Plus VRF English- Features and Advantages

V4+ImprovementsWhat improvements were realized

Efficiency and performance

Control and function

Installation and maintenanceInstallation and maintenance

Page 11: V4Plus VRF English- Features and Advantages

Control and FunctionRecycle operation of outdoor units

In one combination, any of the outdoor unit can run as the master outdoor unit, to realize the similar lifespan among the outdoor units in the combination.

MasterSlave 1 Slave 2

Page 12: V4Plus VRF English- Features and Advantages

Control and FunctionRecycle operation of outdoor units

Control logic: 

Cooling mode Heating mode

Restart when reach setting temp.After oil return。

Restart when reach setting temp.After oil return。After defrosting program。After defrosting program。

Page 13: V4Plus VRF English- Features and Advantages

Control and FunctionSilent operation

unit:dB(A)unit:dB(A)

decreased

MDV4+ 10HP noise testing data!

Page 14: V4Plus VRF English- Features and Advantages

Control and FunctionSilent operation

MDV4+ offers many silent modes for choicesLowest noise down to 46.8dB

Above testing data from the noise lab.g

Page 15: V4Plus VRF English- Features and Advantages

Control and FunctionSilent operation control

S2: comparing with highest ambient temp. of the day, when the system will enter silence mode and the period of silence operationmode and the period of silence operation.

Capa

city %

d %

Highest ambient temp.

Silence mode

Load

e  dB

Start night silence mode Stop night silence modeNoise

Page 16: V4Plus VRF English- Features and Advantages

Control and FunctionSilent operation selection

Night noise control mode :Silent operation mode

Page 17: V4Plus VRF English- Features and Advantages

Control and FunctionImproved oil return program

Oil t ill t t ft t h b iOil return program will start after system has been running 

for 8 hours.

During oil return program indoor unit which is in standby mode indoorDuring oil return program, indoor unit which is in standby mode,  indoor fan will not run;

Cooling mode Heating mode

Indoor unit in cooling mode or fan only Indoor unit in heating mode: indoor fanIndoor unit in cooling mode or fan only mode: indoor fan keeps running;Indoor unit in standby mode: indoor fan will not run

Indoor unit in heating mode: indoor fan is controlled by anti-cold air function;Indoor unit in standby mode: indoor fan will not runwill not run. will not run.

Page 18: V4Plus VRF English- Features and Advantages

M d l k

Control and FunctionMode lock

S l ki d f d l k id h d fliSeveral kinds of mode lock ‐‐ avoid the mode conflict

Fi tHeatingpriority mode

Coolingpriority 

First on‐indoor units  Heating

only modeCooling

only modemode (default)  mode  priority 

mode

only mode only mode

Page 19: V4Plus VRF English- Features and Advantages

M d l k

Control and Function

Mode priority selection(from S5 Switch of outdoor PCB):

Mode lock

Mode priority selection(from S5 Switch of outdoor PCB) :

Remark:just available forRemark:just available for master outdoor unit.

P i it d Fi t i itPriority mode : First on priority.

Page 20: V4Plus VRF English- Features and Advantages

ImprovementWhat improvements were realized

Efficiency and performance

Control and function

Installation and maintenanceInstallation and maintenance

Page 21: V4Plus VRF English- Features and Advantages

AUTO ADDRESSING

Installation and MaintenanceAUTO ADDRESSING

Outdoor unit will automatically 

distribute the address to indoor units 

without any manual settings;

Wired controller and wireless controller

63# 61#62#

Wired controller and wireless controller 

can enquiry and modify every indoor 

units address. 00# 01# 02#

Address setting

Page 22: V4Plus VRF English- Features and Advantages

Add i

Installation and MaintenanceAddress setting

ENC3   S3   ENC2  ENC1  S1

ENC3    ‐‐‐‐‐‐‐‐‐‐‐‐‐‐Network address settingS3         ‐‐‐‐‐‐‐‐‐‐‐‐‐‐default

(ENC1    ‐‐‐‐‐‐‐‐‐‐‐‐‐‐outdoor address setting(0:main unit,1‐3 :slave unit)

Page 23: V4Plus VRF English- Features and Advantages

Si l i i i

Installation and MaintenanceSimple communication wire

Only one group of communication wire of y g pPQE , achieved both of communication for indoor & outdoor unit and network .

Indoor central Controller connectFrom indoor side

Central controller can connect from indoor side or outdoor side at willside or outdoor side at will

Network control

UPS

Indoor central controller

Indoor central Controller connectFrom outdoor sidecontroller

outdoor central controller

From outdoor side

softdog software RS485‐232

Page 24: V4Plus VRF English- Features and Advantages

Installation and MaintenanceChangeable static pressure of outdoor fan

The static pressure of outdoor fan is changeable, it is very Suitable for floor by floor installation

0Pa Standard

20Pa Optional

20~81.8Pa Customized

Changeable E.S.P.Changeable E.S.P.

Remark : between 20-81.8Pa,it need factory Customized especial chip

Page 25: V4Plus VRF English- Features and Advantages

Installation and MaintenanceChangeable static pressure of outdoor fan

Outdoor fan static pressure selection from switch S4

Page 26: V4Plus VRF English- Features and Advantages

D i b l t h lInstallation and Maintenance

Dynamic gas balance technology

No Need Gas

Prime unit Slave unit 1 Slave unit 2

No Need Gas Balance Pipe!

Real-time pressure deliver Real-time pressure deliver

Pressure sensor monitors the system pressure on time and transfer the data to the 

main unit.

main unit will send the pressure data to every unit and make sure the every 

outdoor units in balance situation.      

Page 27: V4Plus VRF English- Features and Advantages

E i tInstallation and Maintenance

Easy maintenance

Reserve checking window for the C i thelectric control box Compressor is near the outside and easy to be

removed

Page 28: V4Plus VRF English- Features and Advantages

Installation and Maintenance

Maintenance software

MaintenanceEasy Maintenance

Outdoor UnitMaintenance S ftMaintenance S ftSoftwareSoftware

Page 29: V4Plus VRF English- Features and Advantages

Network control Network control

Communication terminal

Digital ammeter

Outdoor CCM

Indoor CCM

Digital ammeter

Communication between IN and OU

Communication between OU

Resistance connection

Page 30: V4Plus VRF English- Features and Advantages

Indoor PCB Function

Page 31: V4Plus VRF English- Features and Advantages

Indoor PCB Function

No. Content No. Content

1 Power input of transformer 12 Electric expansion valve drive port

2 P t t f t f 13 S i t d i t2 Power output of transformer 13 Swing motor drive ports3 Port for remote ON/OFF switch 14 Port for electric auxiliary heater

4 Air discharge temp. sensed port at the 15 Indoor evaporator outlet pipe temp. 4 g p pinverter compressor 15 p p p p

detect port

5 Water level switch 16 Indoor ambient and evaporator middle part temp detect portmiddle part temp. detect port

6 Port for network module 17 Port for indoor fan motor 7 Port for new display board 18 Reservedf p y8 Port for old display board 19 Power input port9 Communication port of X Y E 20 Port for alarm10 Communication port of P Q E 21 Port for water pump11 Port for on-line writing program ─

Page 32: V4Plus VRF English- Features and Advantages

Indoor PCB FunctionSW1 definition

1:ON0:down position

Page 33: V4Plus VRF English- Features and Advantages

Indoor PCB FunctionSW2 definitionSW2 definition

1:ON, 0:down position

Page 34: V4Plus VRF English- Features and Advantages

Indoor PCB FunctionSW5 definitionSW5 definition

1:ON 0:down position1:ON, 0:down position

Page 35: V4Plus VRF English- Features and Advantages

Indoor PCB FunctionSW6 definitionSW6 definition

1:ON 0:down position1:ON, 0:down position

Page 36: V4Plus VRF English- Features and Advantages

Indoor PCB FunctionSW7 definitionSW7 definition

Last indoor unit need add 120ohm resistance

The master outdoor and lastThe master outdoor and last indoor unit need Keep switch on

Page 37: V4Plus VRF English- Features and Advantages

Indoor PCB Function

Display board connection

2 Display board connection selection2 Display board connection selection

NEW DISPLAY : connect with new display board which have digital tube showinghave digital tube showing.

OLD DISPLAY : display board which have four light.

Page 38: V4Plus VRF English- Features and Advantages

Key pointOld and New indoor matching issue

Old outdoor (V3、V4、D3、D4)New indoor unit(can match with old outdoor which produced after August.)

New indoor 、old indoor (can match with old outdoor which produced after August.)

Old indoor (matching no problem)

New outdoor(V4+) New indoor (matching no problem)N (V )

New indoor 、old indoor(matching no problem)

Old indoor (matching no problem)

1 、New indoor : new type indoor unit which designed for V4+ outdoor.2、Old indoor : current indoor units which designed for digital scroll and DC inverter system

R kRemark:1、The old indoor unit need manual address setting when V4+ match with old indoor2、When the new indoor and old indoor mixed installation in one system , the old

i d it d l it h dd tti b f d kindoor units need manual switch address setting before power on , and make sure Last one indoor unit must be new type indoor unit.

Page 39: V4Plus VRF English- Features and Advantages

Key point

V4+ outdoor with V4 outdoor issue : They can not Mixed free y fcombination.

V4+ system central control issue : one CCM03 just can connect one Refrigerant System when CCM03 connect from outdoor sideside.

Page 40: V4Plus VRF English- Features and Advantages

Thank You for your attention!f y