1 5 Application DX AHU Application Scene v5 120803 · Single connection without another IDU or AHU...

LGE Internal Use Only

Application LibrarySupply air control kit application :

Capacity control

Version 1.0

1/15

Ilnahm HWANG, AE Europe Supporting DivisionUsing HQ’s AHU document template.

2012.08.01

Capacity control

*Note : If you have questions, or need PPT file, as k your technical manager, traineror Monica Marza ([email protected])


LG AHU controller kits are able to control AHU on r eturn air and room air temperature control, whereas PRDCA0 is able to control the AHU on supply air tem perature control in combination with AHU controller .

(Comm. Line)

Communication kitControl kit

•LG V-net available•Model name : PRCKA0•Option PCB (Capacity adjustment)•Capacity (7 types)28k, 36k, 42k, 48k, 76k, 96k, 196k

•2 models (LG V-net available)•Model name : PRCKD20E

PRCKD40E•Capacity- PRCKD20E (1~4 ODU)- PRCKD40E (5~8 ODU)

Control Device

DX AHU Application kit spec.

Supply air temp. control kit

• LG V-net is not available•Model name : PRDCA0

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(Comm. Line)

(Ref.Piping)

(Ref.Piping)

DX AHU application kit

AHU

Outdoor Unit

EEV kit

Expansion kit

•Two model•Model name : PRLK048A0, PRLK096A0PRLK096A0PRLK096A0PRLK096A0•Capacity (7types ) : - PRLK048A0 : 28k,36k,42k,48k,76k,96k,- PRLK096A0 : 196kPRLK096A0 : 196kPRLK096A0 : 196kPRLK096A0 : 196k

•5 models•Model name : PATX13A0E/PATX20A0E/

PATX25A0E/ PATX35A0EPATX50A0E

•Capacity- PATX13A0E (8~16HP)- PATX20A0E (18~26HP)- PATX25A0E (28~36HP)- PATX35A0E (38~46HP)- PATX50A0E (48~56HP)

Expansion Device=ODU dry contact + I/O* + PRCKA0

*: I/O : Input/Output module

LGE Internal Use OnlySupply air temp. control kit

IDU part of PRCKA0

IO module (AI,AO,DI, DO)*

IO ports

•Control of EEV kit•Connectable with Expansion kit•LGAP communication with Multi V ODU

•IO function including 0~10V AI•Interfance with local AHU controller•DI for control, DO for monitoring•Capacity control

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220V AC power supply

IO terninal blocks

•Wiring with local AHU controller•Wiring for our sensors

*:AI : Analog InputAO: Analog OutputDI : Digital InputDO: Digital Output

LGE Internal Use OnlySupply air control configuration

AHU controller or PLC*

DO

DI : On/Off, Fan High/Mid/Low,Cool/Heat/Ventilation

DO : On/Off, Fan High/Mid/Low,Cool/Heat/Ventilation

AI (0~10V) : Capacity control

Fan Trigger signalDefrost signal

IDU comm.

Internet A, B

IDU comm :EEV control

Supply air control kit(PRDCA0)

AIAir

sensors

3/25

Fan controller (inverter etc.)

Ref. pipecomm. line

EEV signal

Pipe sensortwo pipe sensors

IDU comm :EEV control

Internet A, B : Capacity control

EEV control

Expansion kitis possible to connect

*: Programmable logic controllerNote : DI: Digital Input / DO: Digital OutputAI : Analog Input

LGE Internal Use OnlyCapacity control range

Input voltage AI No. [Vdc]

Tolerance

Capacity of Unit [%]

Target Low Pressure

[For Cooling, kPa gage]

Cooling coil temperature [°C]*

Target High Pressure

[For Heating, kPa gage]

Heating coil temperature

[°C]ControlLow

[Vdc]High [Vdc]

0 0 0.4 100%Controlled by

ODUN/A

Controlled by ODU

N/A

1 0.6 1.4 100 800 10.5 3,000 50.5

2 1.6 2.4 90 830 11.3 2,990 50.3

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DI will determine fan mode and operation mode

3 2.6 3.4 80 870 12.5 2,730 47.3

4 3.6 4.4 70 930 14 2,560 45.1

5 4.6 5.4 60 990 15.8 2,340 41.7

6 5.6 6.4 50 1,070 17.9 2,080 36.8

7 6.6 7.4 45 1,100 19 1,950 34.0

8 7.6 8.4 40 1,160 20.3 1,800 30.5

9 8.6 9.4 Comp. off - - If it is 9V, DO 01-4 is close, DO 01-2 is open.

10 9.6 10 All off - - ODU and FAN are Off.

Due to LG policy of innovation, the values are chan geable without previous notifications.* Measured in R&D chamber respecting laboratory pro tocols, real temperature on site may vary.

LGE Internal Use OnlyTerminal block wiring

5/25

To. EEV kit From sensors To remote controller(option)

(To AHU controller)other line is N

0.75mm2 cable(Shield) or above

0.75mm2 cable(Shield) or above

Fan operationstatus (220V AC)

Jump from 24

LGE Internal Use OnlyTerminal block wiring

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27:GNDODU ON/OFF

30:GNDFAN mode ON/OFF

30:GNDCooling orheating

35:GNDODU ON/OFF

42:GNDDefrosting/cooling/heating(At defrosting, AHU fan should be off)

42:GNDError alarm

45:GNDCapacity controlAnalog input

220V ACConnectto 1,2

LGE Internal Use OnlyFunctions of DI/DO ports

Terminal DI No.Input

Logic Conditions

Open Short

26 01-3 Operation Off Operation On

*When short, the fan signal (FAN) is On and ODU will start to

run.

*When open, ODU will off and FAN1 changes to Off.

*Operation mode : DI 23-

3/23-2

*Fan mode : DI 45-3/45-2

28 23-3 FAN Operation Cooling or

Heating

*When open, FAN is On but ODU will not run.

*When short, FAN is On and mode is decided DI 23-2.

*If no more cooling and heating is necessary, DI 23-3 is open

and DI 01-3 is On.

*DI 01-3: short

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29 23-2Cooling

Operation

Heating

Operation

*When open, mode is cooling

* When short, mode is heating *DI 01-3: short

*DI 23-3: short

31 45-3

Low FAN

Mid FAN*When DI 45-3/45-2 are open : Low fan mode and FAN is On.

*When DI 45-3 is short : Mid fan and FAN is On. *DI 01-3: short

*Operation mode:DI 23-

3/23-232 45-2 High FAN

*When DI 45-2 short : High fan and FAN is On.

*When DI 01-3 is open : FAN is Off, DI 45-3,/45-2 are

neglected.

LGE Internal Use OnlyFunctions of DI/DO ports

Terminal DO No.Output

Logic

Open Short

34 01-4 Operation Off Operation On

*When DI 01-3 is short, ODU and FAN are On.

*When DI 01-3 is open, ODU and FAN are Off.

36 01-2 Compressor is OFF Compressor is ON*When ODU compressor is running, it is short.

*When ODU compressor is off, it is open (DI 01-3 is open, error)

37 23-4

*When DO 23-4 / 23-2 are open, it is ventilation mode.

*When DO 23-4 is open, DO 23-2 is short, it is defrosting during heating.

FAN can be OFF if PIPE_IN and PIPE_OUT are less than 20℃.

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Cooling/heating/defrost/ FAN

FAN can be OFF if PIPE_IN and PIPE_OUT are less than 20℃.

*When DO 23-4 is short, DO 23-2 is open, it is cooling.

*When DO 23-4 is short, DO 23-2 is short, it is heating

*Defrosting mode only works when it is connected with ODU.38 23-2

39 45-4Low FAN

Mid FAN*When DO 45-4 / DO 45-2 are open, it is low fan mode.

*When DO 45-4 is short and DO 45-2 is open , it is mid fan mode.

40 45-2 High FAN * When DO 45-2 is short, it is high fan mode (DO 45-4 is neglected).

41 67-4 No Error Error Occurred *When DO 67-4 is short, ODU has error and ODU stops FAN is Off.

LGE Internal Use OnlyGuide of control sequence

1. Start the outdoor unit on cooling mode1. Start the outdoor unit on cooling mode1. Start the outdoor unit on cooling mode1. Start the outdoor unit on cooling mode1) Capacity control analog input (44-45) sets to 0V 2) Mode decision (Cooling or heating) : 28 is ON all the time and 29 should be OFF3) AHU fan run4) ODU run signal given (26-27) as closed5) Adjust capacity control analog input (44-45) after 2 min. from 4)

2. Start the outdoor unit on heating mode2. Start the outdoor unit on heating mode2. Start the outdoor unit on heating mode2. Start the outdoor unit on heating mode1) Capacity control analog input (44-45) sets to 0V 2) Mode decision (Cooling or heating) : 28 is ON all the time and 29 should be ON for heating3) ODU run signal given (26-27) as closed4) When fan operation status signal is ON (220V AC), run AHU fan

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4) When fan operation status signal is ON (220V AC), run AHU fan5) Adjust capacity control analog input (44-45) after 2 min. from 4)

3. Auto change over3. Auto change over3. Auto change over3. Auto change over1) Mode decision (Cooling or heating) : 28 is ON all the time and 29 should be changed2) ODU will stop and run again after 3 min. from 1)3) Follow 1. or 2. according to cooling or heating operation

4. When defrosting is detected on heating mode by 37 is open, 38 is close4. When defrosting is detected on heating mode by 37 is open, 38 is close4. When defrosting is detected on heating mode by 37 is open, 38 is close4. When defrosting is detected on heating mode by 37 is open, 38 is close1) If fan operation status signal is OFF, AHU fan should be OFF2) If fan operation status signal is ON again, AHU fan can be ON. At this time defrosting signal may change to

heating mode.

LGE Internal Use OnlyExample of simple control

10/25

common

Cool or Heat (auto change over)

AirconditioingON

ON

common0~10V10V : Stop

1) 26-27 is short : Always ON if 44 is not 10V �� to save port of AHU controller2) 28-30 is short : No ventilation, Always mode is c ooling or heating3) 29-30 : cooling at open, heating at short if 44 i s between 0~9V4) 10V : total stop, 1~9V according to supply air te mperature

Signal comes from AHU controller

LGE Internal Use OnlyApplication Note

1. Single connection without another IDU or AHU kit is recomm ended because supply airtemperature control kit adjusts pressure (or AHU coil tempe rature). This adjustment influencescapacity of other IDU or AHU kit.

2. Multiple supply air temperature control kits are possibl e to connect to one ODU system, but allAHU coils temperature will be same.

3. One ODU system should have only one supply air temperature control kit because it controlsODU pressure and one ODU cannot have multiple target pressur e.

4. There is air temperature sensor as the default sensors but it is not used to control supply airtemperature. If it is installed before the AHU coil, LGMV can show inlet air temperature.

5. To decide voltage level for AI, AHU controller should have logic to decide voltage . To decide

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5. To decide voltage level for AI, AHU controller should have logic to decide voltage . To decidevoltage, AHU controller can have multiple sensors in the AHU , but supply air temperature controlkit doesn’t provide air status information for the AHU contr oller.

6. This kit is not possible to be controlled by our V-net controllers like AC Smart II, ACP, or gateway. The only option of contr ol is given by the local AHU controller. ALWAYS SPECIFY LOCAL AHU CONTROLLER THAT WILL BE THE MASTER FOR LG PRDCA0 (PRDCA0 is always SLAVE )

NOTE: The AHU’s coil should always be dimensioned under refrigerant specifications (for example Tevaporatio n = 10°°°°C)


Small scale : AHU ~ 20HP

DX AHU application scene - EEV kit & Supply air cont rol kitDX AHU application scene - EEV kit & Supply air cont rol kit

Application cases

Multi V ODU AHU

DX AHU + Multi V

12/25

EEV Kit

Supply air control kit

Item Model Specification

EEV PRLK048A0 ~ 10HP


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor

Local AHU controller or DDC*

Wires (DI,DO, AI)

*DDC : Direct Digital Control has same signification as PLC



Application cases

DX AHU + Multi V

Multi V ODU AHU

AHU


X

13/25

AHU

EEV Kit


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor

Local AHU controller or DDC

Wires (DI,DO, AI) Note :- Two AHUs have same coil temperature. Impossible t o have different coil temperature.






Application cases

DX AHU + Multi VMulti V ODU AHU


14/25

Remotecontroller

Remotecontroller

Cassette, Wall mounted

EEV Kit


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor


Wires (DI,DO, AI)

Note :- IDU capacity also changes when supply air control kit controls AHU

X





Medium scale : AHU 10 ~ 40HP

Application cases

DX AHU + Multi V

Multi V ODU (~20HP) AHU (2coils)

Multi V ODU (~20HP)


15/25

Multi V ODU (~20HP)

EEV Kit


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor


Wires (DI,DO, AI)Note :-Two AHUs have different coil temperature managed by AHU controller depending on AHU control program-AHU controller should provide 2 AI signals-As backup coils, it is possible application.





Medium (to large) scale : AHU 10 ~ 80HP

Application cases

DX AHU + Multi V

Multi V ODU (~80HP) AHU (2 coils)

* Multi V III : III : III : III : Single unit max 20Hp, 4 Unit combination (Max 80Hp)


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4 Unit combination (Max 80Hp)

...

EEV Kit


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor


Wires (DI,DO, AI) Note :-Two AHUs have same coil temperature. Not possible t o have different coil temperature.-In case of additional coil application, it is OK (u sually one coil is OFF)





Medium (to large) scale : AHU 10 ~ 80HP

Application cases

DX AHU + Multi VAHU (2coils)Multi V ODU (~80HP)

* Multi V III : III : III : III : Single unit max 20Hp, 4 Unit combination (Max 80Hp)


17/25

Cassette, Wall mounted

Remotecontroller

Remotecontroller

EEV Kit


Ref. pipecomm. line

R.C cable

Coil

EEV signal

Pipe sensor


Wires (DI,DO, AI)

Note :- IDU capacity also changes when supply air control kit controls AHU

X





Medium scale : AHU 8 ~ 56HP

DX AHU application scene - Expansion kit & Supply ai r control kitDX AHU application scene - Expansion kit & Supply ai r control kit

Application cases

DX AHU + Multi V

AHUMulti V ODU (~56HP)

18/25Coil

Expansion Kit


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP

PATX50A0E 48~56HP

Note :-You can use one of default option PCB for Control K it(Any option PCB is available for Expansion kit)

Ref. pipecomm. line

R.C cableEEV signal

Pipe sensorWires (DI,DO, AI)




Large scale : AHU 56 ~ 448 (56x8EA)HP

Application cases

DX AHU + Multi VMulti V ODU (~56HP) AHU (2coils)

Multi V ODU (~56HP)

DX AHU application scene - Expansion kit & Supply ai r control kitDX AHU application scene - Expansion kit & Supply ai r control kit

X

19/25


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP

PATX50A0E 48~56HPCoil

Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal




Note : -Supply air control kit should have 1 expansion kit


Large scale : AHU 56 ~ 448 (56x8EA)HP

DX AHU application scene - Expansion kit & Comm. kitDX AHU application scene - Expansion kit & Comm. kit

Application cases

DX AHU + Multi VMulti V ODU (~56HP) AHU (2coils)

Multi V ODU (~56HP)

20/25


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP


Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal




Note :-Two AHUs have different coil temperature managed by AHU controller depending on AHU control program-AHU controller should provide 2 AI signals-As backup coils, it is possible application.



DX AHU application scene - Expansion kit & Comm. kitDX AHU application scene - Expansion kit & Comm. kit

Application cases

DX AHU + Multi VMulti V ODU (~56HP) AHU

AHUX

21/25

Note : - Pressure at coil cannot have two values.


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP


Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal





Large scale : AHU 56HP ~ 448(56x8EA)HP

DX AHU application scene - Expansion kit & Control k itDX AHU application scene - Expansion kit & Control k it

Application cases

DX AHU + Multi V

Multi V ODU (~56HP)

AHU

Multi V ODU (~56HP) AHUX

22/25

Remote controller(AHU exclusive)

Note :- One controller kit can control just one AHU.


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP


Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal







Application cases

DX AHU + Multi V

Multi V ODU (~56HP) AHU (2coils)

Multi V ODU (~56HP)

23/25

Note : - All ODU should be connected to controller kit dire ctly.


Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP

PATX50A0E 48~56HP

Multi V ODU (~56HP)


X

Coil

Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal







Application cases

DX AHU + Multi V

Multi V ODU (~56HP) AHU

Multi V ODU (~56HP)

24/25

Note : - Each ODU should compose an independent refrigerant cycle with one Expansion kit.



Expansion kit

PATX13A0E 8~16HP

PATX20A0E 18~26HP

PATX25A0E 28~36HP

PATX35A0E 38~46HP

PATX50A0E 48~56HP

X

Coil

Expansion Kit

Ref. pipecomm. line

R.C cableEEV signal




LGE Internal Use OnlyRap-up

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Due to LG’s policy of innovation, the values arechangeable without previous notifications .

25/25

changeable without previous notifications .

If experience is limitted in this field, please contact AEEU Supporting Division in the SpecIN phase of a project toprevent quality related issues and compromising customersatisfaction.

LG is constantly developing its products for a betterapproach of the current market. Constant communication not essuch as this one will be regularly provided.

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1 5 Application DX AHU Application Scene v5 120803 · Single connection without another IDU or AHU...

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