Daikin VRV RXYQ72XBYC Series Installation Manual
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Daikin VRV RXYQ72XBYC Series Installation Manual

Daikin VRV RXYQ72XBYC Series Installation Manual

System air conditioner
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VRV
MODEL
RXYQ72XBYC*
RXYQ96XBYC*
RXYQ120XBYC*
RXYQ144XBYC*
RXYQ168XBYC*
RXYQ192XBYC*
RXYQ216XBYC*
RXYQ240XBYC*
RXYQ264XBYC*
RXYQ288XBYC*
RXYQ312XBYC*
RXYQ336XBYC*
RXYQ360XBYC*
RXYQ384XBYC*
Please visit http://www.daikinac.com/content/resources/manuals for the most current version of installation instructions
and service manual. In the event of conflicting information, the online instructions are to be used.
Veuillez visiter http://www.daikinac.com/content/resources/manuals pour obtenir la version la plus récente des
instructions d'installation et du manuel de service. En cas de conflit d'informations, les instructions en ligne sont à
privilégier.
Por favor visite http://www.daikinac.com/content/resources/manuals para obtener la versión más actualizada de las
instrucciones de instalación y del manual de servicio. En caso de información conflictiva, se utilizarán las
instrucciones en línea.
INSTALLATION MANUAL
System air conditioner
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Summary of Contents for Daikin VRV RXYQ72XBYC Series

  • Page 1 INSTALLATION MANUAL System air conditioner English MODEL RXYQ72XBYC* RXYQ96XBYC* RXYQ120XBYC* Français RXYQ144XBYC* RXYQ168XBYC* RXYQ192XBYC* RXYQ216XBYC* Español RXYQ240XBYC* RXYQ264XBYC* RXYQ288XBYC* RXYQ312XBYC* RXYQ336XBYC* RXYQ360XBYC* RXYQ384XBYC* Please visit http://www.daikinac.com/content/resources/manuals for the most current version of installation instructions and service manual. In the event of conflicting information, the online instructions are to be used. Veuillez visiter http://www.daikinac.com/content/resources/manuals pour obtenir la version la plus récente des instructions d’installation et du manuel de service.

  • Page 2: Safety Considerations

    Daikin are used, fire or explosion could result. ous injury or death. • Safely dispose all packing and transportation materials in accordance with federal/state/local laws or ordinances.

  • Page 3: Codes And Regulations

    Make sure to use a DAIKIN specified checker while measur- (inverter or rapid start types). Install the indoor unit far ing sub cooling. Do not use the check valve or the other port away from fluorescent lamps as much as possible.

  • Page 4: Table Of Contents

    Installation Manual VRV System air conditioner CONTENTS Safety considerations ........i 9.3. Leading wire procedure ......19 9.4. Transmission wiring connection Codes and Regulations ........ii procedure ..........20 Introduction ...........2 9.5. Power wiring connection procedure ..21 1.1. General information ......... 2 9.6.

  • Page 5: Introduction

    1. Introduction 1.2.2. Outdoor units combinations Combination for VRV RXYQ-X units are as indicated in tables below, 1.1. General information where RXYQ 192-384 consists of multiple RXYQ 96-168 single mod- This installation manual concerns the VRV RXYQ-X series, full ules as indicated. inverter driven, heat pump system.

  • Page 6: Indoor Capacity Range

    VRV RXYQ-X series. This manual has been prepared with the outdoor unit. The software for the user interface program to ensure adequate maintenance of the unit, and it will provide help in can be obtained from your local Daikin sales office. case problems occur. INFORMATION INFORMATION Refer to the technical engineering data for the latest option names.

  • Page 7: Overview Of Unit

    3. Overview of unit CAUTION 3.1. Opening the unit Appliance not accessible to the general public, install it in a secured area, protected from easy access. To gain access to the unit, front panels need to be opened as follows: This unit, both indoor and outdoor, is suitable for installation in a com- RXYQ72-168X type mercial and light industrial environment.

  • Page 8: Weather Related Precautions

    • When installing in areas where air contains high levels of salt such as near the ocean; Contact your Daikin sales representative for additional precautions. 4.3. Selecting a location in cold climates NOTE •...

  • Page 9: Dimensions And Service Space

    5. Dimensions and service space 5.2. Service space The space around the unit is adequate for servicing and the minimum 5.1. Dimensions of outdoor unit space for air inlet and air outlet is available (refer to the figure below RXYQ72-168X type and choose one of the possibilities).

  • Page 10: Inspecting, Handling And Unpacking The Unit

    3 Bring the unit as close as possible to its final installation position in its original package to prevent damage during transport. <Front side> <Suction side> Service space or more or more 59 in. (1500 mm) 19-5/8 in. (500 mm) •...

  • Page 11: Installing The Unit

    6.4. Installing the unit NOTE Make sure the unit is installed level on a sufficiently strong base to • There are restrictions on the refrigerant pipe connecting order prevent vibration and noise. between outdoor units in the case of the multi system. NOTE See 1.2.2.

  • Page 12: Method For Opening The Sliding Plate

    6.6. Method for opening the sliding plate 7. Refrigerant pipe size and allowable pipe length The sliding plate should be moved to the open position in the following 7.1. General information regions to minimize temperature rise in the main control box: CA, NOTE NV, AZ, NM, OK, TX, AR, LA, MS, AL, TN, GA, NC, SC, FL and Latin America.

  • Page 13: Selection Of Piping Size

    7.3. Selection of piping size 7.3.2. Piping between refrigerant branch kits: D Choose from the following table in accordance with the indoor unit Determine the proper size referring to following tables and reference total capacity type, connected downstream. Do not let the connec- figure (only for indication).

  • Page 14: Selection Of Refrigerant Branch Kits

    • Concerning REFNET headers, choose from the following table in Size up for equivalent length for outdoor-indoor units over 295 ft. (90 m) accordance with the total capacity of all the indoor units connected Outdoor unit Gas pipe Liquid pipe after the REFNET header.
  • Page 15 7.5.2. System only containing VRV indoor units System setup Branch with REFNET joint and Branch with REFNET joint Branch with REFNET header REFNET header Single outdoor Example 1.1 Example 1.2 Example 1.3 Multi outdoor Indoor unit REFNET joint REFNET header Outdoor multi con- Example 2.1 Example 2.2...
  • Page 16 Maximum allowable length after branch The pipe length from the first refrigerant branch kit to the indoor unit ≤130 ft. (40 m) Example 1.1: unit 8: b+c+d+e+f+g+p≤130 ft. (40 m) Example 1.2: unit 6: b+h≤130 ft. (40 m), unit 8: i+k≤130 ft. (40 m) Example 1.3: unit 8: ≤130 ft.

  • Page 17: Precautions On Refrigerant Piping

    8. Precautions on refrigerant piping • Do not allow anything other than the designated refrigerant to get mixed into the refrigerant cycle, such as air, nitrogen, etc. If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away.
  • Page 18 Use the following procedure to remove the pinched piping: WARNING 1 Remove the valve cover and make sure that the stop valves are When brazing at the proximity of the stop valves, be sure to protect fully closed. the stop valves mounting plate with a protective plate to prevent from 1 Service port and service port contacting with the burner flame.
  • Page 19 Side (bottom) connection • Only proceed with piping work after considering the limitations on Remove the knockout hole on the bottom frame and lead out the installing listed here and in the chapter 8.2. Connecting the refriger- piping from the bottom frame. ant piping on page 14 always referring to the installation manual delivered with the kit.

  • Page 20: Guidelines For Handling Stop Valve

    • If the piping length between the outdoor units exceeds 6.5 ft. (2 m), • Mount the REFNET joint so that it branches either horizontally or vertically. create a rise of 8 in. (200 mm) or more in the suction gas and high/ •...

  • Page 21: Field Wiring

    8.3.2. How to use the stop valve • After handling the stop valve, make sure to tighten the stop valve cover securely. For the tightening torque, refer to 8.3.2. How to use Tightening torques the stop valve. Tightening torque (Turn clockwise to close) Stop •...

  • Page 22: Power Circuit, Safety Device And Cable Requirements

    • Make sure the electrical imbalance ratio is no greater than 2%. If it is 9.2. Wiring connection example for whole system larger than this, the unit’s lifespan will be reduced. If the ratio exceeds 4%, the unit will shut down and an malfunction code will be displayed on the indoor remote controller.

  • Page 23: Transmission Wiring Connection Procedure

    RXYQ72-168X type NOTE • Do not connect the power wiring to terminals for the transmission wiring. Doing so would destroy the entire system. • Wiring to the indoor unit should be wired to F1 and F2 on the out- door unit’s terminal block (A1P_X1M). •...

  • Page 24: Power Wiring Connection Procedure

    • Outside the units, the transmission wiring must be finished simulta- CAUTION neously with the local refrigerant piping, and wound with tape (field • Be sure to use crimp-style terminal with insulating sleeves for con- supply) as shown in the figure below. nections.

  • Page 25: Air Tight Test And Vacuum Drying

    • Route wiring so that it does not come into contact with the high- 10. Air tight test and vacuum drying temperature pipes (indicated by the hatching in the figure below) or • After finished piping work, carry out air tight test and vacuum drying. the port pipes (see figure below).

  • Page 26: Pipe Insulation

    11. Pipe insulation NOTE • The air-tightness test and vacuum drying should be done using the NOTE service ports of suction gas pipe, high/low pressure gas pipe and Pipe insulation thickness provided below are guidelines only. Pipes liquid pipe stop valve. See the [R410A] Label attached to the front must be insulated with the appropriate thickness of insulation per ap- panel of the outdoor unit for details on the location of the service plicable local/state or national codes.

  • Page 27: Checking Of Device And Installation Conditions

    12. Checking of device and installation conditions 1 Service window cover 2 Inspection door Be sure to check the followings. For those doing electrical work 3 Main printed circuit board with 3 seven-segment display and 3 push buttons 1 Make sure there is no faulty transmission wiring or loosening of a nut.
  • Page 28 When turning on the power supply, the display flashes on and off. First • Push BS3 one time; the value which is returned (depending on the checks of the power supply are executed (1-2 minutes). actual field situation), is the amount of indoor units which are con- nected to the system.

  • Page 29: Connecting The Pc Configurator To The Outdoor Unit

    13.2.2. Operating the DIP switches 14.2. Calculating the additional refrigerant charge By operating the DIP switches it is possible to: NOTE What to do with DIP switch DS1 The refrigerant charge of the system must be less than 210 lbs. Cool/Heat selector (refer to the manual of the Cool/ (100 kg).
  • Page 30 Parameter [C] FXSQ,FXMQ type Indoor unit capacity 15 18 24 30 36 48 54 type (*1) (*1) (*1) (*1) Refrigerant 0.00 0.03 0.00 0.05 0.00 0.02 0.00 0.00 0.00 0.00 0.00 amount (0.00) (0.014) (0.00) (0.021) (0.00) (0.01) (0.00) (0.00) (0.00) (0.00) (0.00)

  • Page 31: Method For Adding Refrigerant

    14.3. Method for adding refrigerant 14.3.1. Flow chart Step 1 Calculate additional refrigerant charge amount: R (lbs. (kg)) Step 2+3 • Close valve B • Open valve A to the liquid line • Execute pre-charging amount: Q (lbs. (kg)) • Disconnect the manifold from the gas line R<Q R>Q Step 4a...
  • Page 32 Refrigerant R410A tank (siphon system) NOTE Vacuum pump • If the power of some units is turned off, the charging procedure can- Charge hose not be finished properly. Gas pipe stop valve • In case of a multiple outdoor system, turn on the power of all out- door units.

  • Page 33: Start-Up And Configuration

    15. Start-up and configuration INFORMATION The refrigerant charge operation will automatically stop within 30 INFORMATION minutes. If charging is not completed after 30 minutes, perform the It is important that all information in this chapter is read sequentially by additional refrigerant charging operation again. the installer and that the system is configured as applicable.

  • Page 34: Monitoring Function And Field Settings

    13 Air inlet/outlet [1-2]= shows the status of power consumption limitation operation. Check that the air inlet and outlet of the unit is not obstructed by • 1=unit is currently operating under power consumption paper sheets, cardboard, or any other material. limitation •...
  • Page 35 15.2.2. Mode 2 [2-12]= Enable the low noise function and/or power consumption limitation via external control adaptor (DTA104A61/62). Mode 2 is used to change the field settings of the system. Consulting the current field setting value and changing the current field setting If the system needs to run under low noise operation or value is possible.
  • Page 36 [2-26]= Low noise operation start time [2-32]= Forced, all time, power consumption limitation operation (no external control adaptor is required to perform power Change [2-26]=1, 2 or 3 in function of required timing. consumption limitation) Default value=2. If the system always needs to run under power consump- Value Start time automatic low noise tion limitation conditions, this setting activates and defines...
  • Page 37 [2-92]= Te target temperature upper limit Conditions/rules apply for this setting. Refer to selection software or contact your Daikin sales representative for Default value=1. further details. Value Te target temperature upper limit [2-81]=...
  • Page 38 Aux heater setting (Type II) [2-97]= Aux heater max allowable temp [2-37]= AUX Heater is allowed to energize when the ambient temp is Value [2-37] Controlling mode smaller than the AUX Heater Max Allowable Temp. Mode 1 AUX Heater Max Mode 2 Fahrenheit Celsius...
  • Page 39 Actions Type Description Heating Thermo-on Heating Thermo-off Field Shorted setting between Aux heater Indoor fan Aux heater Indoor fan Heat-pump heating is always 2-16 = ON locked out (H/L) 2-37 = Mode 1 Mode 1 (H/L) Lockout is controlled by ABC terminals Mode 2 2-37 =...

  • Page 40: Energy Saving And Optimum Operation

    15.3. Energy saving and optimum operation • Hi-sensible/economic (cooling/heating) The refrigerant temperature is set higher/lower (cooling/heating) RXYQ-X units are equipped with advanced energy saving function- compared to basic operation. The focus under high sensible mode ality. Depending on the priority, emphasizes can be put on energy is comfort feeling for the customer.
  • Page 41 In case of cooling operation the evaporating temperature is allowed Example: Automatic mode during cooling to go down to 43°F (6°C) on temporary base depending on the situation. In case of heating operation the condense temperature is allowed 100% to go up to 115°F (46°C) on temporary base depending on the situ- ation.

  • Page 42: Test Operation

    Example: Automatic mode during cooling No matter which control is selected, variations on the behavior of the system are still possible due to protection controls to keep the unit operating under reliable conditions. The intentional target, however, 100% is fixed and will be used to obtain the best balance between energy consumption and comfort, depending on the application type.

  • Page 43: Malfunction Code List

    • The test operation is automatically carried out, the outdoor unit INFORMATION display will indicate and the indication Test operation and Note that during the first running period of the unit, required power in- Under centralized control will display on the user interface of put may be higher.
  • Page 44 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 01/03/05 • High pressure switch is activated. • Check stop valves situation or abnormalities in (S1PH)-A1P (X2A) (field) piping or airflow over air cooled coil. • High pressure switch connectors are detached. •...
  • Page 45 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 01/02/03 Temperature sensor malfunction Check connection on printed circuit board or actuator. (R3T)-A1P (X30A) 06/07/08 Temperature sensor malfunction Check connection on printed circuit board or actuator. (R7T)-A1P (X30A) 18/19/20 Temperature sensor malfunction Check connection on printed circuit board or actuator.

  • Page 46: Operation Of The Unit

    Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 Faulty wiring to Q1/Q2 or indoor- outdoor. Connect transmission wiring of indoor units to “TO IN/D UNIT (F1, F2)” and transmission wiring of other outdoor units to “TO OUT/D UNIT (F1, F2)”. - /03/04 •...

  • Page 47: Service Mode Operation

    RXYQ72-168XBYC* type 17.3. Service mode operation Refrigerant recovery operation/vacuuming operation is possible by applying setting [2-21]. Refer to 13.2. Operating the push buttons and DIP switches on the printed circuit board on page 24 for details how to set mode 2. When vacuuming/recovery mode is used, check very carefully what should be vacuumed/recovered before starting.

  • Page 48: Disposal Requirements

    Procedure for checking maximum concentration Check the maximum concentration level in accordance with steps 1 to 2 below and take whatever action necessary to comply. 1 Calculate the amount of refrigerant (lbs. (kg)) charged to each system separately. Amount of refrigerant Additional charging in a single unit system amount (amount of re-...
  • Page 49 Daikin Texas Technology Park, 19001 Kermier Road, Waller, TX, 77484, U.S.A. 3P734038-4 EM23A011 [2311] SP...

This manual is also suitable for:

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