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Safety considerations

Read these Safety considerations for Installation carefully be-
fore installing an air conditioner or heat pump. After complet-
ing the installation, make sure that the unit operates properly 
during the startup operation.
Instruct the customer on how to operate and maintain the 
unit.
Inform customers that they should store this Installation 
Manual with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this 
product.
Improper installation can result in water or refrigerant leak-

age, electrical shock, fire, or explosion.

Meanings of 

DANGER

WARNING

CAUTION

, and 

NOTE

Symbols:

DANGER   .  .  .  .  .  .  .  .

Indicates an imminently hazardous 
situation which, if not avoided, will 
result in death or serious injury.

WARNING   .  .  .  .  .  .  .

Indicates a potentially hazardous 
situation which, if not avoided, 
could result in death or serious 
injury.

CAUTION  .  .  .  .  .  .  .  .

Indicates a potentially hazardous 
situation which, if not avoided, 
may result in minor or moderate 
injury. It may also be used to alert 
against unsafe practices.

NOTE   .  .  .  .  .  .  .  .  .  .  .

Indicates situations that may result 
in equipment or property-damage 
accidents only.

INFORMATION   .  .  .

This symbol identifies useful tips 

or additional information.

 DANGER

•  Refrigerant gas is heavier than air and replaces oxygen. A 

massive leak will result in oxygen depletion, especially in 
basements, and an asphyxiation hazard will result in seri

-

ous injury or death.

• 

Do not ground units to water pipes, gas pipes, telephone 
wires, or lightning rods as incomplete grounding will result 
a severe shock hazard resulting in severe injury or death. 
Additionally, grounding to gas pipes will result a gas leak 

and potential explosion resulting in severe injury or death.

• 

If refrigerant gas leaks during installation, ventilate the 
area immediately. Refrigerant gas will result in producing 

toxic gas if it comes into contact with fire. Exposure to this 

gas will result in severe injury or death.

• 

After completing the installation work, check that the re-
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.

• 

Safely dispose all packing and transportation materials 
in accordance with federal/state/local laws or ordinances. 
Packing materials such as nails and other metal or wood 
parts, including plastic packing materials used for trans-
portation will result in injuries or death by suffocation.

 WARNING

•  Only qualified personnel must carry out the installation 

work. Installation must be done in accordance with this 
installation manual. Improper installation could result in 

water leakage, electric shock, or fire.

• 

When installing the unit in a small room, take measures to 

keep the refrigerant concentration from exceeding allow

-

able safety limits. Excessive refrigerant leaks, in the event 

of an accident in a closed ambient space, could result in 

oxygen deficiency.

•  Use only specified accessories and parts for installation 

work. Failure to use specified parts could result in water 
leakage, electric shocks, fire, or the unit falling.

• 

Install the air conditioner or heat pump on a foundation 
strong enough that it can withstand the weight of the unit. 

A foundation of insufficient strength could result in the unit 

falling and causing injuries.

• 

Take into account strong winds, typhoons, or earthquakes 
when installing. Improper installation could result in the 
unit falling and causing accidents.

• 

Make sure that a separate power supply circuit is pro-
vided for this unit and that all electrical work is carried 

out by qualified personnel according to local, state and 
national regulations. An insufficient power supply capacity 

or improper electrical construction could result in electric 

shocks or fire.

•  Make sure that all wiring is secured, that specified wires 

are used, and that no external forces act on the terminal 

connections or wires. Improper connections or installation 

could result in fire.

•  When wiring, position the wires so that the control box 

cover can be securely fastened. Improper positioning of 

the control box cover could result in electric shocks, fire, or 

the terminals overheating.

• 

Before touching electrical parts, turn off the unit.

• 

The circuit must be protected with the required safety de-
vice according to local and national regulations, i.e. a fuse, 
a circuit breaker or GFCI.

• 

This equipment can be installed with a Ground-Fault Cir-
cuit Interrupter (GFCI). Although this is a recognized mea-
sure for additional protection, with the grounding system in 
North America, a dedicated GFCI is not necessary.

• 

Securely fasten the unit terminal cover (panel). If the 
terminal cover/panel is not installed properly, dust or 

water may enter the outdoor unit and could result in fire or 

electric shock.

• 

When installing or relocating the system, keep the refriger-

ant circuit free from substances other than the specified 

refrigerant (R410A) such as air. Any presence of air or oth-
er foreign substance in the refrigerant circuit could result 
in abnormal pressure rise or rupture, resulting in injury.

• 

Do not change the setting of the protection devices. If the 
pressure switch, thermal switch, or other protection device 
is shorted and operated forcibly, or parts other than those 

specified by Daikin are used, fire or explosion could result.

01_EN_3P477778-3C.indb   1

2/8/2018   14:31:04

Summary of Contents for VRV Aurora RXLQ120TATJU

Page 1: ...JU RXLQ96TATJU RXLQ120TATJU RXLQ144TATJU RXLQ192TATJU RXLQ240TATJU RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU RXLQ144TAYDU RXLQ192TAYDU RXLQ240TAYDU RXLQ72TAYCU RXLQ96TAYCU RXLQ120TAYCU RXLQ144TAYCU RXLQ192...

Page 2: ...must be done in accordance with this installation manual Improper installation could result in water leakage electric shock or fire When installing the unit in a small room take measures to keep the...

Page 3: ...ch as possible Indoor units are for indoor installation only Outdoor units can be installed either outdoors or indoors This unit is for outdoor use Do not install the air conditioner or heat pump in t...

Page 4: ...11 8 Precautions on refrigerant piping 14 8 1 Caution for brazing 14 8 2 Connecting the refrigerant piping 14 8 3 Guidelines for handling stop valve 17 9 Field wiring 18 9 1 Power circuit safety devic...

Page 5: ...below and right where RXLQ 144 240 consists of multiple RXLQ 72 120 single modules as indicated 72 96 120 RXLQ72TATJU TAYDU TAYCU 1 RXLQ96TATJU TAYDU TAYCU 1 RXLQ120TATJU TAYDU TAYCU 1 RXLQ144TATJU TA...

Page 6: ...120TAYDU 144TAYDU 192TAYDU 240TAYDU 72TAYCU 96TAYCU 120TAYCU 144TAYCU 192TAYCU 240TAYCU Max Number of Connectable Indoor Units 12 16 20 25 33 41 Note Values inside brackets are based on connection of...

Page 7: ...ust be strong enough to support the weight of the unit Installation location is flat to prevent vibrations and noise generation and to have sufficient stability The space around the unit is adequate f...

Page 8: ...kes into account improper installation may result in the unit turning over 4 2 Weather related precautions Be sure that the air inlet of the unit is not positioned towards the main wind direction Fron...

Page 9: ...ble refer to the figure below and choose one of the possibilities a b a c d a b a e d e c a b a e d f c a b a e b d c a b a e d f c 1 2 3 5 4 ABCD Sides along the installation site with obstacles Suct...

Page 10: ...ther specifications can be found in the Engineering Data Book 6 Inspecting handling and unpacking the unit 6 1 Inspection At delivery the unit must be checked and any damage must be re ported immediat...

Page 11: ...screw in the founda tion bolts until their length remains 13 16 in 20 mm above the foundation surface A A 13 16 in 20 mm NOTE There are restrictions on the refrigerant pipe connecting order between o...

Page 12: ...which are clean inside and outside and which do not accumulate harmful sulfur oxidants dirt cutting oils moisture or other contamination Foreign materials inside pipes including oils for fabrication m...

Page 13: ...r 295 ft 90 m Outdoor unit capacity type Gas pipe Liquid pipe RXLQ72T type 3 4 in 19 1 mm 7 8 in 22 2 mm 3 8 in 9 5 mm 1 2 in 12 7 mm RXLQ96T type 7 8 in 22 2 mm 1 in 25 4 mm a RXLQ120T type Increase...

Page 14: ...gth pipe length between outdoor 1 and indoor units Equivalent piping length pipe length between outdoor 1 and indoor units Assume equivalent piping length of refnet joint 1 6 ft 0 5 m and refnet heade...

Page 15: ...le 1 3 unit 8 a i 540 ft 165 m Equivalent length 623 ft 2 190 m Total piping length 1640 ft 500 m Example 1 1 a b c d e f g h i j k l m n p 1640 ft 500 m Example 2 1 a b c d e f g h i j k l m n p 1640...

Page 16: ...ft 40 m If the increased pipe size is larger than the pipe size of the main pipe then the pipe size of the main pipe has to be increased as well Increase the pipe size as follows f3 8 f1 2 f1 2 f5 8 f...

Page 17: ...h Dry Nitrogen prevents the creation of large quantities of oxidized film on the inside of the piping An oxidized film ad versely affects valves and compressors in the refrigerating system and prevent...

Page 18: ...lame Liquid pipe stop valve Gas pipe stop valve Protective plate Stop valves mounting plate 5 Cut off the lower part of the smaller pinched piping with an ap propriate tool such as pipe cutters Let th...

Page 19: ...ller field piping 8 2 4 Precautions when connecting piping between outdoor units multiple outdoor units system To connect the piping between outdoor units an optional multi connection piping kit BHFP2...

Page 20: ...Mount the REFNET header so that it branches horizontally 2 Installation of the multi connection piping kit A 1 B 1 C D 15 C 4 3 4 in 120 mm D 19 11 16 in 500 mm Install the joints horizontally so tha...

Page 21: ...g torque refer to 8 3 2 How to use the stop valve Check for refrigerant leaks after tightening the service port cover 9 Field wiring NOTE All field wiring and components must be installed by a license...

Page 22: ...0 90 AWG18 16 AWG18 16 AWG18 16 AWG18 16 AWG18 16 AWG18 16 RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU RXLQ144TAYDU RXLQ192TAYDU RXLQ240TAYDU f3 60Hz f3 60Hz f3 60Hz f3 60Hz f3 60Hz f3 60Hz 460V 460V 460V 46...

Page 23: ...ration Onsite settings can be accomplished by operating the printed circuit board A1P of Master unit NOTE Do not connect the power wiring to terminals for the transmission wiring Doing so would destro...

Page 24: ...make it possible for insects rainwater snow and other ob jects to enter the electrical wiring box which may cause malfunctions Control box cover It causes damp air or water to enter Front side Termin...

Page 25: ...ectrical parts in the control box 10 Air tight test and vacuum drying After finished piping work carry out air tight test and vacuum drying NOTE Always use nitrogen gas for the air tightness test Abso...

Page 26: ...evacuating the system for 2 hours pressurize the system to 375 000 microns vacuum break with nitrogen gas and evacuate the system again using the vacuum pump for 1 hour to 500 microns or less vacuum...

Page 27: ...you can remove the front panel see figure Now you can open the inspection door of the control box cover see figure You can see 3 push buttons and 3 seven segment displays and DIP switches 3 1 2 1 Fron...

Page 28: ...n is the amount of indoor units which are con nected to the system Result mode 1 setting 10 is addressed and selected return value is monitored information To leave the monitoring function push BS1 on...

Page 29: ...on page i To avoid compressor breakdown do not charge the refrigerant more than the specified amount This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths...

Page 30: ...0TAYCU RXLQ120TAYCU RXLQ120TAYCU Indoor units FXMQ type 18 1 24 1 30 1 36 2 FXFQ type 36 2 Other 48 1 Liquid piping a f3 4 60 ft e f1 4 15 ft i f3 8 20 ft m f3 8 15 ft r f1 2 10 ft b f5 8 20 ft f f3 8...

Page 31: ...a mixed refrigerant adding it in gas form may cause the refrigerant composition to change preventing normal operation Before charging check whether the refrigerant cylinder is equipped with a siphon t...

Page 32: ...ning by con necting the refrigerant tank only to the liquid stop valve service port open valve C Make sure that all outdoor unit stop valves as well as valves A and C are closed 1 2 3 4 5 6 B C 9 8 10...

Page 33: ...sure to open all stop valves after pre charging the refrigerant Operating with the stop valves closed will damage the compressor 15 Start up and configuration INFORMATION It is important that all info...

Page 34: ...cted time frames The second method is to enable low noise operation based on an external input For this operation an optional acces sory is required 1 2 shows the status of power consumption limitatio...

Page 35: ...is setting will only be effective when the optional external control adaptor DTA104A61 62 is installed Default value 0 To activate this function change 2 12 1 2 18 Fan high static pressure setting In...

Page 36: ...tting Change 2 32 0 1 or 2 in function of required limitation 2 34 Indoor unit fan tap setting Indoor units fan speed limitation related to connection ca pacity and outdoor air temperature for energy...

Page 37: ...Default value 1 Value 2 82 Heating comfort setting 0 Eco 1 Mild default 2 Quick 3 Powerful Change 2 82 0 1 2 or 3 in function of required limitation This setting is used in conjunction with setting 2...

Page 38: ...h to emergency heat if there is a system fault Item Description Min Max Increments Heat Pump Lockout Temp Below this tempera ture heat pump is locked out 15F default 50F 5F Heat Pump Lockout Release d...

Page 39: ...t mode has been set the auto backup func tion will automatically be set This will allow the auxiliary or secondary heat source to be automatically energized in the event of a system failure Error code...

Page 40: ...us under high sensible mode is comfort feeling for the customer The selection method of indoor units is important and has to be considered as the available capacity is not the same as under basic oper...

Page 41: ...base depending on the situ ation When the request from the indoor units becomes more moderate the system will eventually go to the steady state condition which is defined by the operation method above...

Page 42: ...of all indoor units are finished field piping electrical wiring air purge etc See installation manual of the indoor units for details CAUTION Do not insert fingers rods or other objects into the air i...

Page 43: ...d DIP switches on the printed circuit board on page 24 Push BS2 for 5 seconds or more The unit will start test operation The test operation is automatically carried out the outdoor unit display will i...

Page 44: ...ctronic expansion valve malfunction Y5E A7P X8A Check connection on printed circuit board or actuator 31 36 Electronic expansion valve malfunction Y6E A7P X10A Check connection on printed circuit boar...

Page 45: ...S1NPL A1P X31A Check connection on printed circuit board or actuator LC 14 15 Transmission trouble 208 230 460V A3P X6A A1P X28A 575V A4P X6A A1P X28A Check connection 19 20 Transmission trouble 208 2...

Page 46: ...address malfunction inconsistency Check if transmission wired unit amount matches with powered unit amount by monitor mode or wait till initialization is finished UF 01 Auto address malfunction incon...

Page 47: ...in the outdoor unit before starting service operation on the inverter equipment Be careful not to touch the live parts If a fan rotates due to strong wind it may store electricity in the capacitor or...

Page 48: ...exceeded in the unlikely event of major leak in the system and this in accordance to the local applicable regulations and standards Maximum concentration level The maximum charge of refrigerant and t...

Page 49: ...3P477778 3C EM17A024 1801 HT...

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