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EMRQ8~16ABY1

Daikin Altherma outdoor unit

4P501819-1 – 2017.08

Installation manual

18

Leak test

The leak test must satisfy specification EN 378-2.

1

Vacuum leak test

1.1

Evacuate the system from the liquid, gas and high pressure
piping to –100.7 kPa (5 Torr) for more than 2 hours.

1.2

Once reached, turn off the vacuum pump and check that
the pressure does not rise for at least 1 minute.

1.3

Should the pressure rise, the system may either contain
moisture (see vacuum drying below) or have leaks.

2

Pressure leak test

2.1

Break the vacuum by pressurizing with nitrogen gas to a
minimum gauge pressure of 0.2 MPa (2 bar). 
Never set the gauge pressure higher than the maximum
operation pressure of the unit, i.e. 4.0 MPa (40 bar).

2.2

Test for leaks by applying a bubble test solution to all piping
connections.

2.3

Discharge all nitrogen gas.

Vacuum drying

To remove all moisture from the system, proceed as follows:

1

Evacuate the system for at least 2 hours to a target vacuum of 
–100.7 kPa. 

2

Check that, with the vacuum pump turned off, the target vacuum
is maintained for at least 1 hour. 

3

Should you fail to reach the target vacuum within 2 hours or
maintain the vacuum for 1 hour, the system may contain too
much moisture. 

4

In that case, break the vacuum by pressurizing with nitrogen gas
to a gauge pressure of 0.05 MPa (0.5 bar) and repeat steps 1 to
3 until all moisture has been removed. 

5

The outdoor stop valves can now be opened, and/or additional
refrigerant can be charged (see 

"13.4. 

Method for adding

refrigerant" on page 23

).

11. P

IPE

 

INSULATION

After  finishing the leak test and vacuum drying, the piping must be
insulated. Take into account the following points:

Make sure to insulate the connection piping and refrigerant
branch kits entirely.

Be sure to insulate liquid and discharge piping (for all units).

Use heat resistant polyethylene foam which can withstand a
temperature of 70°C for liquid piping and polyethylene foam
which can withstand a temperature of 120°C for gas piping.

Reinforce the insulation on the refrigerant piping according to
the installation environment.

Condensation might form on the surface of the insulation.

If there is a possibility that condensation on the stop valve might
drip down into the indoor unit through gaps in the insulation and
piping because the outdoor unit is located higher than the indoor
unit, this must be prevented by sealing up the connections. See
below.

Make sure to use a recommended bubble test
solution from your wholesaler.
Do not use soap water, which may cause
cracking of flare nuts (soap water may contain
salt, which absorbs moisture that will freeze
when the piping gets cold), and/or lead to
corrosion of flared joints (soap water may contain
ammonia which causes a corrosive effect
between the brass flare nut and the copper flare).

NOTE

After opening the stop valve, it is possible that the
pressure in the refrigerant piping does not rise. This
might be caused by e.g. the closed state of the
expansion valve in the outdoor unit circuit, but does not
present any problem for correct operation of the unit.

NOTE

The connections to the indoor units and all indoor units
should also be leak and vacuum tested. Keep the stop
valves of the indoor units open as well.

Refer to the indoor unit installation manual for more
details.

Leak test and vacuum drying should be done before
the power supply is set to the unit. If not, see

"10.4. Leak test and vacuum drying" on page 16

 for

more information.

Ambient temperature

Humidity

Minimum thickness

30°C

75% to 80% RH

15 mm

>30°C

80% RH

20 mm

1

Insulation material

2

Caulking, etc.

2

1

4PEN501819-1.book  Page 18  Wednesday, September 13, 2017  12:52 PM

Содержание EMRQ8ABY1

Страница 1: ...INSTALLATION MANUAL EMRQ8ABY1 EMRQ10ABY1 EMRQ12ABY1 EMRQ14ABY1 EMRQ16ABY1 Daikin Altherma outdoor unit 4PEN501819 1 book Page 1 Wednesday September 13 2017 12 52 PM...

Страница 2: ...vlastn zodpovednos e zariadenie na ktor sa vz ahuje toto vyhl senie 25 w tamamen kendi sorumlulu unda olmak zere bu bildirinin ilgili oldu u donan m n n a a daki gibi oldu unu beyan eder 01 as set ou...

Страница 3: ...aksim l pie aujam temperat ra TS TSmin Minim l temperat ra zem spiediena pus L C TSmax Pies tin t temperat ra saska ar maksim lo pie aujamo spiedienu PS M C Dzesin t js N Spiediena dro bas ier ces ies...

Страница 4: ...uming after electrical installation is done on any indoor or outdoor unit 17 General guidelines 16 Set up 17 Leak test 18 Vacuum drying 18 11 Pipe insulation 18 12 Electrical wiring work 19 12 1 Preca...

Страница 5: ...on Improper installation or attachment of equipment or accessories could result in electric shock short circuit leaks fire or other damage to the equipment Be sure only to use accessories and optional...

Страница 6: ...ing accessories are supplied with the unit 1 EKHBRD connection is possible for EKHBRD_ABX and EKHBRD_AC Connection is NOT possible for EKHBRD_AA or EKHBRD_AB models For more details see technical data...

Страница 7: ...ectrical component box cover as follows For service purposes the push buttons on the switch box PCB need to be accessed To access these push buttons the electrical component box cover does not need to...

Страница 8: ...16 9 Electronic expansion valve subcooling Y2E Y5E 3 Heat exchanger 10 Electronic expansion valve charge Y4E 4 Fan 11 4 way valve heat exchanger Y2S Y9S 5 Fan motor M1F M2F 12 4 way valve pipe Y8S 6...

Страница 9: ...field wiring with cable ties to the switch box to ensure strain relief 4 Magnetic contactor K2M 5 Current sensor PCB 2 1 4 5 2 3 3 3 3 3 3 3 3 1 1 Main PCB 2 Sub 1 PCB 3 Terminal block X1M Main termi...

Страница 10: ...to leak Locations where a mineral oil mist spray or vapour may be present in the atmosphere Plastic parts may deteriorate and fall off or cause water leakage Locations where equipment that produces el...

Страница 11: ...and snow install a baffle plate on the air side of the outdoor unit In heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit If lateral snow...

Страница 12: ...nit take into account the following 1 Fragile handle the unit with care Keep the unit upright in order to avoid compressor damage 2 Choose on beforehand the path along which the unit is to be brought...

Страница 13: ...m above the foundation surface CAUTION To avoid injury do not touch the air inlet or aluminium fins of the unit WARNING Tear apart and throw away plastic packaging bags so that children will not play...

Страница 14: ...case the required pipe sizes inch sizes are not available it is also allowed to use other diameters mm sizes taken the following into account select the pipe size nearest to the required size use the...

Страница 15: ...net header to indoor unit 40 m Example 1 unit 5 b c d e 40 m Example 2 unit 3 b e 40 m unit 5 f h 40 m Example 3 unit 5 f 40 m Maximum allowable height difference Difference in height between outdoor...

Страница 16: ...An oxidized film adversely affects valves and compressors in the refrigerating system and prevents proper operation The nitrogen pressure should be set to 0 02 MPa i e just enough so it can be felt o...

Страница 17: ...event rusting When passing electrical wiring through the knock out holes wrap the wiring with protective tape to prevent damage as shown above 3x 1 2 3 NOTE Any gas or oil remaining inside the stop va...

Страница 18: ...are the responsibility of the installer field piping 1 Pinched piping 2 Stop valve 3 Service port 4 Point of melting the brazing metal cut pipe off just above this brazing or marking point Never remov...

Страница 19: ...valve After handling the service port make sure to tighten the service port cover securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the service...

Страница 20: ...being present in the refrigerant piping for example rainwater may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed and consider the install...

Страница 21: ...branch kits entirely Be sure to insulate liquid and discharge piping for all units Use heat resistant polyethylene foam which can withstand a temperature of 70 C for liquid piping and polyethylene fo...

Страница 22: ...t operation If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating attach a reversed phase protection circuit locall...

Страница 23: ...tem overview of field wiring Field wiring consists out of power supply always including earth and indoor outdoor communication transmission wiring 12 4 Requirements The power supply must be protected...

Страница 24: ...sion wiring Care should be taken for connecting the wires to the terminal block 1 Power supply inside a conduit 2 Conduit 3 Power supply 4 Cut off the shaded zones before usage 5 Through hole cover 1...

Страница 25: ...en connecting the power supply the earth connection must be made before the current carrying connections are established When disconnecting the power supply the current carrying connections must be se...

Страница 26: ...nhouse gases label peal off the applicable language and stick it on top of 1 2 Factory refrigerant charge see unit name plate 3 Additional refrigerant amount charged 4 Total refrigerant charge 5 Green...

Страница 27: ...further explanation on how to do the necessary settings 6 Push the BS1 MODE button for 5 sec the H1P LED is on w 7 Push the BS2 SET button 20 times until following LED combination is reached 8 Push th...

Страница 28: ...liquid and discharge side The suction stop valve should remain closed at all times 10 Damaged equipment Check the inside of the unit on damaged components or squeezed pipes 11 Refrigerant leak Check...

Страница 29: ...shing the BS3 RETURN button defines the setting Finally when pushing the BS3 RETURN button again the operation starts according to the setting Pushing BS1 MODE button will get you back to the initial...

Страница 30: ...ralized control will display on the remote controller It may take 10 minutes to bring the state of the refrigerant uniform before the compressor starts During the test operation the refrigerant runnin...

Страница 31: ...ge has been finished correctly Recalculate the required amount of refrigerant from the piping length and add an adequate amount of refrigerant In case the test operation was interrupted or the unit wa...

Страница 32: ...7 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...

Страница 33: ...t of the refrigerant of oil and of other parts must be done in accordance with relevant local and national legislation 19 UNIT SPECIFICATIONS Technical specifications Electrical specifications amount...

Страница 34: ...4PEN501819 1 book Page 1 Wednesday September 13 2017 12 52 PM...

Страница 35: ...4PEN501819 1 book Page 2 Wednesday September 13 2017 12 52 PM...

Страница 36: ...4P501819 1 2017 08 Copyright 2017 Daikin 4P501819 1 0000000M 4PEN501819 1 book Page 1 Wednesday September 13 2017 12 52 PM...

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