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VRV IV
MODEL
REYQ72TAYC*
REYQ96TAYC*
REYQ120TAYC*
REYQ144TAYC*
REYQ168TAYC*
REYQ192TAYC*
REYQ216TAYC*
REYQ240TAYC*
REYQ264TAYC*
REYQ288TAYC*
REYQ312TAYC*
REYQ336TAYC*
REYQ360TAYC*
REYQ384TAYC*
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.
3P362438-9N
INSTALLATION MANUAL
System air conditioner
English
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Table of Contents
Related Manuals for Daikin REYQ72TAYC Series
Summary of Contents for Daikin REYQ72TAYC Series
- Page 1 INSTALLATION MANUAL VRV IV System air conditioner English MODEL REYQ72TAYC* REYQ96TAYC* REYQ120TAYC* Français REYQ144TAYC* REYQ168TAYC* REYQ192TAYC* REYQ216TAYC* Español REYQ240TAYC* REYQ264TAYC* REYQ288TAYC* REYQ312TAYC* REYQ336TAYC* REYQ360TAYC* REYQ384TAYC* 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.
- Page 2 • After completing the installation work, check that the re- specified by Daikin are used, fire or explosion could result. frigerant gas does not leak throughout the system. • Do not install unit in an area where flammable materials are present due to risk of explosions that will result in seri- ous injury or death.
- Page 3 Normal operation is not tion. possible when connected to other units. Make sure to use a DAIKIN specified checker while measur- • Remote controller (wireless kit) transmitting distance can ing sub cooling. Do not use the check valve or the other port be shorter than expected in rooms with electronic fluores- to measure it.
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Page 4: Table Of Contents
REYQ72TAYC* REYQ216TAYC* REYQ360TAYC* REYQ96TAYC* REYQ240TAYC* REYQ384TAYC* VRV IV System air conditioner REYQ120TAYC* REYQ264TAYC* REYQ144TAYC* REYQ288TAYC* Installation Manual REYQ168TAYC* REYQ312TAYC* REYQ192TAYC* REYQ336TAYC* CONTENTS Safety considerations ........i 9.3. -
Page 5: Introduction
REYQ-T units are as indicated in tables below (and right), where with the outdoor unit. The software for the user interface program REYQ 192-384 consists of multiple REYQ 72-168 modules as indi- can be obtained from your local Daikin sales office. cated. 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 . Combination Ratio connecting the VRV IV REYQ-T series outdoor units. This manual has Combination Ratio = Total capacity index of the indoor units / Capac- been prepared to ensure adequate maintenance of the unit, and it will 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- REYQ72-168TAYC* 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 REYQ72-168T type and choose one of the possibilities). -
Page 10: Inspecting, Handling And Unpacking
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 or refrigerant branch kits and Branch Selector units: D Determine the proper size referring to following tables and reference Choose from the following table in accordance with the indoor unit figure (only for indication). -
Page 14: Selection Of Refrigerant Branch Kits
7 .4 . Selection of refrigerant branch kits • Concerning REFNET headers, choose from the following table in accordance with the total capacity of all the indoor units connected For piping example, refer to 7.3. Selection of piping size on page 10. after the REFNET header. - Page 15 <Example of connection> Outdoor unit Branch Selector Indoor unit side unit side (1) Piping from outdoor units to Branch Selector units Suction gas pipe (3 lines): 3 pipes High/low pressure gas pipe Liquid pipe (2) Piping from Branch Selector units to the indoor units, and from refrigerant branch kits to the cooling-only indoor units (*2) (Suction) gas pipe (2 lines): 2 pipes Liquid pipe (*2) The 2-line gas pipe that is branched from the 3-line pipe and goes to the cooling-only indoor units should be connected to the suction gas pipe. (*3) Cooling-only units should make up ≤50% of the total capacity of indoor units.
- Page 16 (*6) In the case where the equivalent piping length from outdoor units to indoor units ≥295 ft. (90 m), make sure to upsize the liquid pipe of the main pipe (see the figure below), referring to the table below. (Do not upsize the high/low pressure gas pipe and the suction gas pipe.) Outdoor unit capacity type Liquid pipe First refrigerant...
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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.
- 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.
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Page 20: Guidelines For Handling Stop Valve
• If the piping length between the outdoor units exceeds 6.5 ft. (2 m), 2 Installation of the multi connection piping kit. create a rise of 8 in. (200 mm) or more in the suction gas and high/ low pressure gas line within a length of 6.5 ft. (2 m) from the kit. If ≤ 6.5 ft. (2 m) If > 6.5 ft. (2 m) To indoor units... -
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
REYQ72-168T 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 by way of Branch Selector unit should be wired to F1 and F2 on the outdoor unit’s terminal block (A1P_X1M). •... -
Page 24: Power Wiring Connection Procedure
• The transmission wiring inside the control box should be secured Ground wire using the clamp (1) as shown in the figure below. Control box REYQ72-168T type Attach insulation sleeves 1 (A1P) Power supply terminal block Ground terminal Clamp (1) (accessory) Vinyl tube (accessory) CAUTION •... -
Page 25: Air Tight Test And Vacuum Drying
10 . Air tight test and vacuum drying REYQ72-168T type • After fi nished piping work, carry out air tight test and vacuum drying. NOTE • Always use nitrogen gas for the air tightness test. • Absolutely do not open the stop valve until the main power circuit insulation measurement has been completed. -
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
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 [D] 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 Measuring instrument NOTE Refrigerant R410A tank (siphon system) • If the power of some units is turned off, the charging procedure can- Vacuum pump not be finished properly. Charge hose • In case of a multiple outdoor system, turn on the power of all out- door units.
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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...
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Page 37: Energy Saving And Optimum Operation
Change [2-47]=0, 2-7 in function of required operation [2-92]= Te target temperature upper limit method during heat recovery operation. Default value=1. For more information and advice about the effect of these Value settings, see 15.3. Energy saving and optimum operation. Te target temperature upper limit [2-92] [2-49]=... - Page 38 E.g., when your system is operating in heating, you do not need as This setting is used in conjunction with setting [2-8] and [2-47]. much heating under high outdoor ambient temperatures (e.g., 59°F • To activate the powerful comfort setting under heating opera- (15°C)) as under low outdoor ambient temperatures (e.g., 23°F tion, change field setting [2-82]=3.
- Page 39 Example: Automatic mode during cooling Example: Automatic mode during cooling 100% 100% 120°F (49°C) 115°F (46°C) 43°F (6°C) 37°F (3°C) 95°F (35°C) 36°F (2°C) A Actual load curve A Virtual load curve (default automatic mode peak capacity) B Virtual load curve (initial capacity automatic mode) B Load curve C Virtual target value (initial evaporation temperature C Virtual target value (initial condensation tempera-...
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Page 40: Test Operation
No matter which control is selected, variations on the behavior of the INFORMATION system are still possible due to protection controls to keep the unit Note that during the first running period of the unit, required power in- operating under reliable conditions. The intentional target, however, put may be higher. -
Page 41: Malfunction Code List
• The test operation is automatically carried out, the outdoor unit 15 .4 .3 . Correcting after abnormal completion of the test display will indicate and the indication Test operation and operation Under centralized control will display on the user interface of The test operation is only completed if there is no malfunction code indoor units. - Page 42 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 01/03/05 Discharge temperature too high (R2T/R21T/R22T): • Open stop valves. • Stop valves are closed. • Check refrigerant amount and recharge. • Reverse connection of high/low pressure gas pipe •...
- Page 43 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 14/15/16 Transmission trouble. Check connection. A4P (X6A)-A1P (X25A) 19/20/21 Transmission trouble. Check connection. A5P (X3A)-A4P (X41A) 24/25/26 Transmission trouble. Check connection. A5P (X4A)-A6P (X3A) 33/34/35 Transmission trouble. Check connection. A7P (X2A)-A1P (X20A) 01/02/03 Unbalanced power supply voltage.
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Page 44: Operation Of The Unit
Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 Auto address malfunction (inconsistency) Check if transmission wired unit amount matches with powered unit amount (by monitor mode) or wait till initialization is finished. Auto address malfunction (inconsistency) Check if transmission wired unit amount matches with powered unit amount (by monitor mode) or wait till initialization is finished. -
Page 45: Caution For Refrigerant Leaks
18 . Caution for refrigerant leaks 18 . 1 . Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards . The following standards may be applicable if local regulations are not available . The VRV System, like other air conditioning systems, uses R410A as refrigerant. - Page 46 Daikin Texas Technology Park, 19001 Kermier Road, Waller, TX, 77484, U.S.A. 3P362438-9N EM16A003B [1912] HT...