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VRV IV
MODEL
RXYQ72TAYC*
RXYQ96TAYC*
RXYQ120TAYC*
RXYQ144TAYC*
RXYQ168TAYC*
RXYQ192TAYC*
RXYQ216TAYC*
RXYQ240TAYC*
RXYQ264TAYC*
RXYQ288TAYC*
RXYQ312TAYC*
RXYQ336TAYC*
RXYQ360TAYC*
RXYQ384TAYC*
Please visit http://www.daikinac.com/content/resources/manuals for the most current version of installation
instructions. In the event of conflicting information, the online installation instruction is to be used.
Veuillez visiter http://www.daikinac.com/content/resources/manuals pour obtenir la version la plus récente des
instructions d'installation. En cas de conflit d'informations, les instructions d'installation en ligne doivent être
utilisées.
Visite http://www.daikinac.com/content/resources/manuals para obtener la versión más actualizada de las
instrucciones de instalación. En caso de información conflictiva, se debe utilizar la instrucción de instalación en
línea.
3P477778-5J
INSTALLATION MANUAL
System air conditioner
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Summary of Contents for Daikin VRV IV RXYQ72TAYC Series
- Page 1 INSTALLATION MANUAL VRV IV System air conditioner English MODEL RXYQ72TAYC* RXYQ96TAYC* RXYQ120TAYC* Français RXYQ144TAYC* RXYQ168TAYC* RXYQ192TAYC* RXYQ216TAYC* Español RXYQ240TAYC* RXYQ264TAYC* RXYQ288TAYC* RXYQ312TAYC* RXYQ336TAYC* RXYQ360TAYC* RXYQ384TAYC* Please visit http://www.daikinac.com/content/resources/manuals for the most current version of installation instructions. In the event of conflicting information, the online installation instruction is to be used. Veuillez visiter http://www.daikinac.com/content/resources/manuals pour obtenir la version la plus récente des instructions d’installation.
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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
RXYQ72TAYC* RXYQ216TAYC* RXYQ360TAYC* RXYQ96TAYC* RXYQ240TAYC* RXYQ384TAYC* VRV IV System air conditioner RXYQ120TAYC* RXYQ264TAYC* RXYQ144TAYC* RXYQ288TAYC* Installation Manual RXYQ168TAYC* RXYQ312TAYC* RXYQ192TAYC* RXYQ336TAYC* CONTENTS Safety considerations ........i 9.3. -
Page 5: Introduction
999482P3 is required which is a dedicated cable to communicate with the outdoor unit. The software for the user interface program can be obtained from your local Daikin sales office. INFORMATION Refer to the technical engineering data for the latest option names. -
Page 6: Indoor Capacity Range
1 .3 . Indoor capacity range 1 .4 . Scope of the manual This manual describes the procedures for handling, installing and 1 .3 . 1 . Connection Ratio connecting the VRV IV outdoor units. This manual has been prepared Connection Ratio = Total capacity index of the indoor units / Capac- to ensure adequate maintenance of the unit, and it will provide help in ity index of the outdoor units... -
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- RXYQ72-168T 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 RXYQ72-168T 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. capacity type Indoor unit capacity index kit name 3/4 in. - 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...
- 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.
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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.
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Page 19: Correct Configuration
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 create a rise of 8 in. (200 mm) or more in the suction gas and high/ vertically. -
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
RXYQ72-168T 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 fi gure below) or • After fi nished piping work, carry out air tight test and vacuum drying. the port pipes (see fi gure 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 Front panel 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.
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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] Indoor unit FXMQ type capacity type Refrigerant 0.06 0.03 0.14 0.29 0.25 0.16 0.33 0.25 0.08 0.00 amount (0.03) (0.014) (0.06) (0.13) (0.11) (0.07) (0.15) (0.11) (0.04) (0.00) (lbs. (kg)/unit) Indoor unit FXFQ type capacity Others type Refrigerant 0.36 0.33 0.30...
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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 valves C and A • Open valve B to the liquid line •... -
Page 32: Charging Method
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. Refrigerant charge port • 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 [2-62]= Cooling and heating capacity learning control [2-92]= Te target temperature upper limit Default value=0. Default value=1. Value Value Description Te target temperature upper limit [2-62] [2-92] Cooling adjustment Heating adjustment Cooling and heating adjustment If Auto Te, then use this setting to address different load pro- files.
- Page 38 [2-98]= Aux heater max allowable temp release differential AUX Heater is not allowed to energize when the outdoor ambient temp is recovered by differential (below) above the AUX Heater Max Allowable Temp. AUX Heater Max Allowable Fahrenheit Celsius temp Release differential 2.8°C 5.6°C (default)
- 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 =...
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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-T 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.
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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.
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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)”. •... -
Page 47: Service Mode Operation
RXYQ72-168TAYC* 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. 3P477778-5J EM17A026B [1912] HT...
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