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MODEL
RXTA24AAVJU
RXTA36AAVJU
RXTA48AAVJU
RXTA60AAVJU
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
contents 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, le
contenu en ligne est à privilégier.
Visite http://www.daikinac.com/content/resources/manuals para obtener la versión en español de
las instrucciones de instalación y del manual de servicio. En caso de información contradictoria, se
utilizarán los contenidos en línea.
INSTALLATION MANUAL
System Air Conditioner
Installation manual
English
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Summary of Contents for Daikin VRV-S RXTA24AAVJU
- Page 1 INSTALLATION MANUAL System Air Conditioner MODEL Installation manual English RXTA24AAVJU RXTA36AAVJU RXTA48AAVJU RXTA60AAVJU 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 contents 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 figure 1 figure 2 in.(mm) figure 3 figure 4 40(1000) 40(1000) or more or more 40(1000) or more in.(mm) in.(mm) figure 5 figure 6 L > H L > H 40(1000) 40(1000) or more or more in.(mm) in.(mm) figure 7 figure 8...
- Page 3 40(1000) 40 (1000) or more or more L ≤ H in.(mm) figure 8 13/16 (20) in.(mm) figure 11 in.(mm) in. (mm) figure 9 figure 10 figure 12 7-1/16 (180) 7-1/16 (180) 29-1/8 (740) 3-7/8 (98) 5/8 (16) 23-7/8 (606) in.(mm) figure 13 figure 14 figure 15...
- Page 4 figure 19 figure 21 figure 20 figure 22 Lock nut Cover Conduit TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT (X1M(A1P)) Conduit mounting plate (accessory) (X1M) figure 23 figure 24 TO IN/D UNIT TO OUT/D UNIT H2 H1 H2 figure 25 figure 26 figure 27...
- Page 5 Installation manual VRV-S System air conditioner CONTENTS CAUTION ..Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. 1. SAFETY CONSIDERATIONS ..........1 It may also be used to alert against unsafe practices. 2.
- Page 6 Daikin are used, fire or explosion could result. fire. Instruct the customer to keep the area around the unit clean.
- Page 7 2. INTRODUCTION 2-3 Standard supplied accessories Make sure that the accessories shown below are all present. 1. This series uses R32 refrigerant. Be absolutely sure to comply with (The accessories can be found behind the front panel.) “6. REFRIGERANT PIPING”, exercise caution to prevent impurities from entering R32 (mineral oils and water).
- Page 8 (2) If the unit is installed in a location where it might be exposed to (7) Space needed for installation strong wind, install as per figure 3. <Precautions when installing units in series> • 11 mph (5 m/s) or higher winds blown against the outdoor unit’s •...
- Page 9 Pattern 2: Where obstacles in front of the air outlet is lower than the PRECAUTIONS ON INSTALLATION unit. • Before installation, make sure the unit is level and the foundation is (There is no height limit for obstructions on the intake side.) sturdy enough to prevent vibration and noise.
- Page 10 REFRIGERANT PIPING 6-3 Protection against contamination when install- ing pipes • Do not allow anything other than the designated refrigerant to get mixed into the refrigerant cycle, such as air, nitrogen, etc. If any • Cover the ends of pipe to prevent moisture, dirt, dust, etc. from refrigerant gas leaks while working on the unit, ventilate the room entering the piping.
- Page 11 Precautions for connecting pipes piping is insulated. The refrigerant pipes between the outdoor unit and wall must be insulated if any portion of the un-accessible liquid • Be careful not to let the field piping come into contact with the com- pipe cannot be insulated.
- Page 12 6-7 Pipe size selection C: Piping between refrigerant branch kit and indoor unit Use the same diameters as the connections (liquid, gas) on the indoor Determine the proper size using the following tables and reference units. The diameters of the indoor units are as follows: figure (only for indication).
- Page 13 6-9 Refrigerant piping length and height difference Pipe Size * [in.(mm)] Equivalent Piping Length of L Joints [in.(m)] Connection with only VRV indoor units φ 1/4 (6.4) 6-1/4 (0.16) The piping lengths and height differences must comply with the follow- φ...
- Page 14 6-11 Air tight test and vacuum drying • Since the side boards may be deformed if only a torque wrench is used when loosening or tightening flare nuts, always lock the stop After doing the piping, perform the following inspections. valve with a wrench and then use a torque wrench.
- Page 15 ELECTRIC WIRING 5. 208/230V 6. Indoor unit 7. Remote controller CAUTION 8. Ground wire To the electrician 7-2 How to lay the power supply wiring and trans- • Do not operate until refrigerant piping work is completed. (Failure to adhere by this caution may lead to irrepairable mission wiring compressor damage.) Let the power supply wiring and transmission wiring with a conduit pass...
- Page 16 <Precautions when laying power supply wiring> 7. (To X1M (A1P) [TO IN/ D UNIT] (H1, H2)) 8. Terminal block (X1M (A1P)) • Wiring of different thicknesses cannot be connected to the power supply 9. Insulation tube (Large) (accessory) terminal block. 10.
- Page 17 8. ADDITIONAL REFRIGERANT CHARGE Filling after calculating the amount of refrigerant to add 1. Calculate the amount of refrigerant to add as described in WARNING “6. REFRIGERANT PIPING”. 2. After the vacuum drying is finished, open valve A (Refer to figure 27) and •...
- Page 18 10-1 Power On–Check Operation 4. • Check that the liquid Caution Do not leave any stop valve and gas-side stop closed otherwise the compres- • Make sure to perform the check operation after installation. valves are open, and if sor will fail. (If the air conditioner is operated using the indoor remote controller they are closed, open without performing the check operation, the error code “U3”...
- Page 19 10-2 Temperature control operation checklist The stop valve of an outdoor Open the gas-side stop valve and the unit is left closed. liquid-side stop valve. [Set the master unit (the indoor unit with rights of selection cooling Check if the additional refrigerant charge or heating)] has been finished correctly.
- Page 20 • Automatic for VRT control • Powerful The refrigerant temperature is set depending on the outdoor ambient Overshoot (during heating operation) or undershoot (during cooling conditions. As such adjusting the refrigerant temperature to match the operation) is allowed compare to the requested refrigerant tempera- required load (which is also related to the outdoor ambient conditions).
- Page 21 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-...
- Page 22 12. CAUTION FOR REFRIGERANT LEAKS Where there are no smaller room divisions (Points to note in connection with refrigerant leaks) Introduction These systems are charged with R32 refrigerant. Please refer to ASHRAE 15 and local standards and building code as applicable when installing this equipment.
- Page 23 13. WIRING DIAGRAM English...
- Page 25 Daikin Texas Technology Park, 19001 Kermier Road, Waller, TX, 77484, U.S.A. 3P778926-1D EM24A003B (2501)
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