intensity WDC-120G/WK(A) User manual

WIRED CONTROLLER
MAN-S-WC120G-1220
intensity.mx
SERVICE MANUAL
*imágenes con fines ilustrativos
MODELO: WDC-120G/WK(A)
WIRED CONTROLLER
MAN-S-WC120G-1220
intensity.mx
SERVICE MANUAL
*imágenes con fines ilustrativos
MODELO: WDC-120G/WK(A)
2nd Generaon VRF Wired Controller

WDC-120G/WK(A)
202011
CDW - KW/G021 )A( ecivreS M launa

WDC-120G/WK(A)
202011
WDC-120G/WK(A) Service Manual
Preface
This manual aims to describe the basic details, installaons and funcons for Intensity´s group controller
WDC-120G/WK(A) for new generaon VRF units. Details have been provided clearly about the various conneconsand
installaonsthatare needed to be performed for the successful running of this controller. The user should read this
manualin detail before trying to connect the group controller with the VRF units. For the conneconsof the VRF units, the
user should refer the respecve Installaon Manuals, Owner’sManuals and Service Manualor contact with Intensity
TechnicalSupportEngineer for smooth resoluon of the problem.
This manualhasbeen divided into4 main parts: Introducon; Installaon & Commissioning; Funconsand
Troubleshoong.
Introducon: This partgivesa basic detail about the controller like whatare the applicaon scenarios in which this
controller is valid and whatare the basic funconsthatare on offer by this controller.
Installaon & Commissioning: This partgives a detail about the various stepsthatneed to be followed for successful
installaon and commissioning of this controller.
Funcons: This partgives a detailed descripon about the various funcons which are on offer by this controller.
Troubleshoong: This partgives some basic troubleshoong which can help you to migate the basic troubles thatmaybe
encountered during the use of this controller
Although, care hasbeen taken to make this manualwith the best of the capacies, but in case there is any
problem or misprint inside the manual, dowrite back to Intensity.

WDC-120G/WK(A)
202011
CDW - KW/G021 )A( ecivreS M launa

WDC-120G/WK(A)
202011 1
CONTENTS
CONTENTS
Part 1 WDC-120G/WK(A) Introducon………………………….....…...………………….…03
Part 2 WDC-120G/WK(A) Installaon & Commissioning………….…………….…...15
Part 3 WDC-120G/WK(A) Funcons..........................................................…...39
Part 4 WDC-120G/WK(A) Troubleshoong……….……………………....………...………81
Part 5 WDC-120G/WK(A) Appendix………………………………………….………………....87

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WDC-120G/WK(A) Service Manual
Part 1
Introducon
1 GENERAL ............................................................................................................................................. 4
1.1 Safety Precauons ......................................................................................................................... 4
1.2 Aachments with the Box.............................................................................................................. 6
2 INTRODUCTION ................................................................................................................................... 7
3 DIMENSIONS ....................................................................................................................................... 8
3.1 Front and Side Views ..................................................................................................................... 8
3.2 Back View...................................................................................................................................... 9
4 MODES OF CONNECTION ................................................................................................................... 10
5 WIRING SPECIFICATIONS .................................................................................................................... 11
6 MULTIPLE CONNECTION METHODS .................................................................................................... 12
6.1 One Wired Controller for one Indoor Unit .................................................................................... 12
6.2 Two wired controllers for one indoor unit .................................................................................... 12
6.3 Connecon using Infrared Port .................................................................................................... 13
6.4 Group Control.............................................................................................................................. 14

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1General
1.1 Safety Precauons
Read these safety precauonscarefully before installing the WDC-120G/WK(A)
General
NOTICE
Improper installaon or aachmentof equipmentor accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Only use accessories, oponalequipmentand spare parts
made or approved by Intensity.
WARNING
Make sure installaon, tesng and applied materials comply with the applicable legislaon.
CAUTION
Wear adequate personalprotecve equipment(protecve gloves, safety glasses etc.) while installing,
maintaining or servicing the system.
WARNING
Tear apartand throw awayplasc packaging bagsso thatnobody, especially children, can playwith them.
Possible risk: suffocaon.
Installaon Site
Donot install the equipment in potenally explosive environment.
Electrical
DANGER: RISK OF ELECTROCUTION
Turn OFF all power supply before connecng electric wiring or touching electric parts.
Disconnect the power supply for more than 1 minute and measure the voltage atthe terminals of main
circuit capacitors or electrical components before servicing. The voltage must be less than 50 V DC before you
can touch electricalcomponents. For the locaon of the terminals refer the wiring diagram.
DoNOT touch electricalcomponents with wethands.
DoNOT leave the equipment unaended when the service cover is removed.
WARNING
A main switch or other meansfor disconnecon, having a contact separaon in all poles providing full
disconnecon under overvoltage category III condion, shall be installed in the fixed wiring.
WARNING
Only use copper wires.
Make sure the field wiring complies with the applicable legislaon. DoNOT touch electricalcomponents
with wethands.
All field wiring must be performed in accordance with the wiring diagramsupplied with the product.
Make sure to install earth wiring. DoNOT earth the unit to a ulity pipe, surge absorber, or telephone
earth. Incomplete earth mayresult in electric shock.
Make sure to use a dedicated power circuit. NEVER use a power supply shared by another appliance.
Make sure to install the required fuses or circuit breakers.

Make sure to install an earth leakage protector. Failure to doso may cause electric shock or fire.
*Note: Install the wiresatleast 1 meter awayfrom televisionsor radios to preventinterference. Depending on the radio waves, a distance of 1 meter maynot be sufficient.

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WDC-120G/WK(A) Service Manual
WARNING
Aer finishing the electricalwork, confirm thateach electricalcomponentand terminal inside the
electricalcabinet is securely connected.

Make sure all coversare closed before starng up the units.
Installaon Safety
WARNING
Donot install the WDC-120G/WK(A) near areas of electromagnec interference or nextto base staon.
Locate the WDC-120G/WK(A) away from sources of steams, possible flammable gasleaks, heat or
sulfurous gases.
Reserve sufficientspace for the installaon, and leave adequate spacing between the device and
surrounding community service network devices for heatdissipaon.
Make sure thatthe installaon site is indoorsand theWDC-120G/WK(A) is installed at a heightthat is 50
cm above the ground.
Make sure thatthe installaon site is not exposed to sun and heang devices.
Make sure thatthe device is not installed in humid places or where it is easy for device to come in
contact with water.
Make sure thatthe device is not installed in locaonswhere it can be easily corroded or where there are
flammable gases.
Please install the gateway device in strict accordance with the above instruconsand do check the
installaon site carefully before installaon.

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1.2 Aachments with the Box
The following below listed aachments are provided with the WDC-120G/WK(A) package.
WDC-120G/WK(A)*1 Installaon & Owner’s Manual *1
Cross round head wood mounng screw (dia 4 mm*20mm) *3 Cross round head mounng screw (M4*25mm)*2
Plasc Expansion pipe (dia 4.2mm*28.5mm) Plasc screw bar (dia 5mm*16mm)
Infrared Connecon Cable
WIRED CONTROLLER
MAN-S-WC120G-1220
intensity.mx
SERVICE MANUAL
*imágenes con fines ilustrativos
MODELO: WDC-120G/WK(A)
WIRED CONTROLLER
MAN-S-WC120G-1220
intensity.mx
SERVICE MANUAL
*imágenes con fines ilustrativos
MODELO: WDC-120G/WK(A)

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WDC-120G/WK(A) Service Manual
2Introducon
WDC-120G/WK(A) is a power line communicaon based wired controller which aims to fulfill the needsof group control
for applicaon scenarios such asa big hall where all the VRF indoor units are required to operate in the same fashion in all
the circumstances. This controller sasfies the need for the group control for up to 16 indoor units and provides powerful
funconssuch asscheduling and querying the indoor and outdoor unit parametersusing its bi-direconalcommunicaon
lines. Along with its group control capacity, the controller also hasthe capacity to control one indoor unit atone me and
hasthe ability for the communicaon by infrared communicaon cables aswell asthe power line communicaon cable.
The controller can also be connected with the HRV aswell asthe Fresh Air Processing VRF indoor units. This controller
employs dot matrix displaysasa result of which the iconsdisplayed on this controller screen are much beer and brighter
than all other controllers. Apartfrom all these highlighted features, the controller also hasthe capacity to control some of
the indoor unit’ssengswhich were earlier only available on the indoor unit main PCB with the help of some dial
switches like cold draprevenon and temperature compensaonsboth in the case of heang and cooling mode. Also the
controller hasa LED indicator which lights up when the indoor units connected with the controller are switched ON. This
controller is a compromise between the central controllersand the wired controllershaving the features which are much
beer than anywired controller and are noless in anyrespect from some basic central controller. So this group controller
can be summarized to be a compromise between the wired controller and small central controllers.

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3Dimensions
In this secon, we will discuss the dimensionalaspect of the WDC-120G/WK(A) controller. We will have a look atwhatare
the various length, breadth and heightfor this controller. The frontview,side view and top view of this controller have
been discussed in the below secons
3.1 Front and Side Views
(Unit: mm)

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WDC-120G/WK(A) Service Manual
3.2 Back View
(Unit: mm)

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4Modes of Connecon
The WDC-120G/WK(A) offers3 methodsfor communicaon with the indoor unit which are asfollows:
X1X2: The X1X2 is a power line communicaon line which provides the power to the controller aswell astransfers
the communicaon informaon from the controller to the indoor unit and vice-versa. If one or twocontrollers
are used to control one IDU,the portX1X2 needsto be connected; the controller will have bi-direconal
communicaon asa result of which it will do both the funcons of providing the power to the controller atthe
same me transferring the communicaon informaon also.
D1D2: The D1D2 portis the communicaon port. If this portis connected,the informaon (communicaon
informaon) begins to flow through the D1D2 linesand the X1X2 portacts asonly the line for providing the
power to the controller. If one or twocontrollersare used to control mulple IDUs,the ports X1X2 & D1D2
both need to be connected,the controller will have bi-direconalcommunicaon. This type of communicaon
is required atthe me of group control only.
ABCDE: This portis used in case you wantto connect the indoor unit to the infrared communicaon(IDU Display
Board). Bi-direconalcommunicaon will not work in case of using infrared ABCDE port. There will not be the
2-waycommunicaon in this case. There will be only one-waycommunicaon where in the informaon flows
from the wired controller to the indoor unit. This type of communicaon is not suggested fromIntensity end.
Important Point: There is no polarity between X1 and X2 ports

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WDC-120G/WK(A) Service Manual
5Wiring Specificaons
Important points:
1. The switch box and control wire for 2nd generaon DC IDU are not aached.
2. Donot touch the remote controller main board.
Wiring Type
Shielded,2-conductor or 4-conductor for connecon through
X1/X2/D1/D2 ports
Shielded,4-conductor for connecon through ABCDE ports
Wiring Size AWG 20
Wiring Length
Maximum 200 m (656 .) for 2nd generaon DC IDU
(X1/X2/D1/D2 ports)
Maximum 20 m (66 ) for connecon through ABCDE ports

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6Mulple connecon methods
The various methodsof using this wired controller and various advantages and benefits of using a parcular mode of
communicaon have been enlisted in detail below:
6.1 One Wired Controller for one Indoor Unit
In this scenario, the wired controller’sX1X2 portconnects with the X1X2 portof the indoor unit. There is nopolarity
between the X1 and X2 ports. They can be cross-connected.
6.2 Two wired controllers for one indoor unit
In this scenario, the X1X2 portof the twowired controllerswill be connected with the X1X2 portof the indoor unit. Since
there is nopolarity between the X1 and X2 ports, so there is noneed to care about the polarity of connecon between
X1X2. One of the Controllers can be setasthe main controller whereasthe other one can act asa secondarycontroller in
this case. The main and secondarycontroller seng needsto be done inside the wired controller menu interface.

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WDC-120G/WK(A) Service Manual
6.3 Connecon using Infrared Port
In this connecon method, the wired controller will be connected to the infrared porton the displayboard of the indoor
unit using the ABCDE terminals. Asa result of using the infrared communicaon, the bi-direconalcommunicaon
features would not work in this case. This method of connecon is advised to be used in case of connecng hotel keycard
interface. The standard cable setsupplied with the box is 1. For customizaon opon, the user can also use the cable 2 as
customizaon to extend the length.

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6.4 Group Control
In this type of group control connecon, one or twowired controllerscan be used to control mulple indoor units (up to
16). In this case, the wired controller and IDU needsto be connected to the X1X2 AND D1D2 ports atthe same me. There
is nopolarity between the X1X2 of indoor unit and X1X2 of the wired controller. The D1D2 line sequence between the
main and secondarywired controllers must be consistent.

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Part 2
Installaon &
Commissioning
1 INSTALLATION & COMMISSIONING..................................................................................................... 16
1.1 Back Cover Installaon ................................................................................................................ 16
1.2 WireOutlet ................................................................................................................................. 19
1.3 Wiring Specificaons ................................................................................................................... 21
1.4 Modes of Connecon .................................................................................................................. 21
1.5 Connecon Scenarios .................................................................................................................. 22
1.6 Front Cover Installaon ............................................................................................................... 27
2 FIELD SETTINGS.................................................................................................................................. 28
2.1 Main Controller Service Menu ..................................................................................................... 30
2.2 Secondary Controller Service Menu ............................................................................................. 33
2.3 Service Menu when Wired Controller connect to indoor unit using CN2 port (Infrared Port) ......... 34
2.4 Seng the IDU Address ............................................................................................................... 36
2.5 Checking Error History ................................................................................................................. 37

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1 Installaon & Commissioning
In this secon, we will have a look atthe various stepsand procedures thatare required to be undergone for the
successful installaon & commissioning of WDC-120G/WK(A) wired controller.
1.1 Back Cover Installaon
1. Insertthe p of a straighthead screw driver in buckling posion atthe boom of the wired controller and li the
screwdriver to pry open the back cover. (Payaenon to the liing direcon, incorrect liing maydamage the wired
controller)