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5.

Purging air and checking gas leakage

• When piping work is completed, it is necessary to purge the air and check for gas leakage.

 WARNING

• Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
• When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
• R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
• Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants may damage the vacuum 

pump or the unit.

• If using additional refrigerant, perform air purging from the refrigerant pipes 

and indoor unit using a vacuum pump, then charge additional refrigerant.

• Use a hexagonal wrench (4mm) to operate the stop valve rod.
• All refrigerant pipe joints should be tightened with a torque wrench at the specified 

tightening torque.

*1. Pipe length vs. vacuum pump run time.  

*2. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe joint may exists.  

Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).

1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.

2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).  

(High-pressure valve subsequently requires no operation.)

3)  Do vacuum pumping and make sure that the compound pressure gauge reads –0.1MPa (–76cmHg).*1

4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump.  

(Keep this state for a few minutes to make sure that the compound pressure gauge pointer does not swing back.)*2

5) Remove caps from liquid stop valve and gas stop valve.

6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve. 

Close it after 5 seconds, and check for gas leakage.
Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.  
After the check is complete, wipe all soapy water off.

7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.

(Do not attempt to turn valve rod beyond its stop.)

8) Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified torques.

Pipe length

Up to 15m

More than 15m

Run time

Not less than 10 min.

Not less than 15 min.

Gauge 
manifold

Compound 
pressure gauge

Pressure metre

Low-pressure 
valve

High-pressure 
valve 

Charging 
hoses

Vacuum pump

Valve caps

Service port

Liquid 
stop 
valve

Gas 
stop 
valve

Summary of Contents for ARXS50G3V1B

Page 1: ...anual de instalación Serie Split R410A Español Manuale d installazione Serie Multiambienti R410A Italiano Εγχειρίδιο εγκατάστασης ιαιρούμενης σειράς R410A Ελληνικά Manual de Instalação Série split R410A Portugues Руководство по монтажу Серия R410A с раздельной установкой Русский Montaj kılavuzları R410A Split serisi Türkçe Models RXS50K2V1B RXS60F4V1B RXG50K3V1B RX50G3V1B RX60G3V1B ARXS50G3V1B RXS...

Page 2: ...ineato nel A e giudicato positivamente da B secondo il Certificato C 07 ȈȘȝİȓȦıȘ ȩʌȦȢ țĮșȠȡȓȗİIJĮȚ ıIJȠ A țĮȚ țȡȓȞİIJĮȚ șİIJȚțȐ Įʌȩ IJȠ B ıȪȝijȦȞĮ ȝİ IJȠ ȆȚıIJȠʌȠȚȘIJȚțȩ C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 ɉɪɢɦɟɱɚɧɢɟ ɤɚɤ ɭɤɚɡɚɧɨ ɜ A ɢ ɜ ɫɨɨɬɜɟɬɫɬɜɢɢ ɫ ɩɨɥɨɠɢɬɟɥɶɧɵɦ ɪɟɲɟɧɢɟɦ B ɫɨɝɥɚɫɧɨ ɋɜɢɞɟɬɟɥɶɫɬɜɭ C 10 Bemærk som anført i A og positivt vurder...

Page 3: ... positivamente da B secondo il Certificato C 07 ȈȘȝİȓȦıȘ ȩʌȦȢ țĮșȠȡȓȗİIJĮȚ ıIJȠ A țĮȚ țȡȓȞİIJĮȚ șİIJȚțȐ Įʌȩ IJȠ B ıȪȝijȦȞĮ ȝİ IJȠ ȆȚıIJȠʌȠȚȘIJȚțȩ C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 ɉɪɢɦɟɱɚɧɢɟ ɤɚɤ ɭɤɚɡɚɧɨ ɜ A ɢ ɜ ɫɨɨɬɜɟɬɫɬɜɢɢ ɫ ɩɨɥɨɠɢɬɟɥɶɧɵɦ ɪɟɲɟɧɢɟɦ B ɫɨɝɥɚɫɧɨ ɋɜɢɞɟɬɟɥɶɫɬɜɭ C 10 Bemærk som anført i A og positivt vurderet af B i henhold til Ce...

Page 4: ...6 Nota delineato nel A e giudicato positivamente da B secondo il Certificato C 07 Σημείωση όπως καθορίζεται στο A και κρίνεται θετικά από το B σύμφωνα με το Πιστοποιητικό C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 Примечание как указано в A и в соответствии с положительным решением B согласно Свидетельству C 10 Bemærk som anført i A og posit...

Page 5: ...normal heat build up or fire When wiring the power supply and connecting the wiring between the indoor and outdoor units position the wires so that the control box lid can be securely fastened Improper positioning of the control box lid may result in electric shocks fire or over heating terminals If refrigerant gas leaks during installation ventilate the area immediately Toxic gas may be produced ...

Page 6: ...nging from ceiling or stacked CAUTION When operating the air conditioner in a low outdoor ambient temperature be sure to follow the instructions described below To prevent exposure to wind install the outdoor unit with its suction side facing the wall Never install the outdoor unit at a site where the suction side may be exposed directly to wind To prevent exposure to wind it is recommended to ins...

Page 7: ...ntres From unit s side Max allowable piping height Min allowable piping length Max allowable piping length 30m 1 5m 20m Liquid pipe Gas pipe O D 6 4mm O D 12 7mm 20g m Additional refrigerant required for refrigerant pipe exceeding 10m in length Be sure to add the proper amount of additional refrigerant Failure to do so may result in reduced performance The suggested shortest pipe length is 1 5m in...

Page 8: ...he foundation surface Outdoor Unit Installation 1 Installing outdoor unit 1 When installing the outdoor unit refer to Precautions for Selecting the Location and the Outdoor Unit Installation Drawings 2 If drain work is necessary follow the procedures below 2 Drain work 1 Use drain plug for drainage 2 If the drain port is covered by a mounting base or floor surface place additional foot bases of at...

Page 9: ...que wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them fully with the torque wrenches A A Cut exactly at right angles Remove burrs Set exactly at the position shown below Flaring Die Check Flare s inner surface must be flaw free The pipe end must be evenly fla...

Page 10: ...from gauge manifold to gas stop valve s service port 2 Fully open gauge manifold s low pressure valve Lo and completely close its high pressure valve Hi High pressure valve subsequently requires no operation 3 Do vacuum pumping and make sure that the compound pressure gauge reads 0 1MPa 76cmHg 1 4 Close gauge manifold s low pressure valve Lo and stop vacuum pump Keep this state for a few minutes t...

Page 11: ...both the gas and liquid piping and to provide insulation dimensions as below 3 Use separate thermal insulation for gas and liquid refrigerant pipes Gas side Liquid side Gas pipe thermal insulation Liquid pipe thermal insulation O D 12 7mm O D 6 4mm I D 14 16mm I D 8 10mm Minimum bend radius Thickness 10mm Min 40mm or more 30mm or more Thickness 0 8mm C1220T O Filling a cylinder with an attached si...

Page 12: ...h on SW1 with a screwdriver The operation will start Forced cooling operation will stop automatically after around 15 minutes To stop the operation press the switch SW1 Standby Electricity Saving The standby electricity saving function turns off power supply to the outdoor unit and sets the indoor unit into standby electricity saving mode thus reducing the power consumption of the air conditioner ...

Page 13: ...ts inside the product Do not branch the power for the drain pump etc from the terminal block Doing so may cause electric shock or fire Be sure to install an earth leak detector One that can handle higher harmonics This unit uses an inverter which means that it must be used an earth leak detector capable handling harmonics in order to prevent malfunctioning of the earth leak detector itself Use an ...

Page 14: ...p style terminal for connection to the power supply terminal block Place the round crimp style terminals on the wires up to the covered part and secure in place 3 Pull the wire and make sure that it does not disconnect Then fix the wire in place with a wire stop Power supply terminal block Shape wires so that the service lid and stop valve cover fit securely Service lid Screw Good Stripping wire a...

Page 15: ...OR Outdoor CONDENSER Condenser DISCHARGE Discharge C7 C8 Capacitor DB1 DB3 Diode bridge FU1 FU2 FU3 Fuse FU4 Field fuse IPM Intelligent power module L Live L803 L804 Reactor M1C Compressor motor M1F Fan motor MRCW MRM10 MRM20 MR30 Magnetic relay N Neutral Q1L Overload protector Q1DI Earth leak detector PCB1 PCB2 Printed circuit board S10 S11 S12 S20 S40 S70 S80 S90 HL3 HN3 X11A Connector R1T R2T R...

Page 16: ... air conditioner requires a small amount of power in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again 2 Test items Test items Sy...

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Page 20: ...3P360062 1C 2013 11 Copyright 2013 Daikin ...

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