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5

4. Installing the refrigerant piping

4.1. Precautions

4.1.1. For devices that use R407C refrigerant

• Do not use the existing refrigerant piping.
• Do not use crushed, misshapen, or discolored tubing. The inside of the tub-

ing should be clean and free from harmful sulfuric compounds, oxidants,
dirt, debris, oils and moisture.

• Store the piping to be used during installation indoors and keep both ends of

the piping sealed until just before brazing.

• Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil

to coat flares and flange connections.

• Use liquid refrigerant to fill the system.
• Do not use a refrigerant other than R407C.
• Use a vacuum pump with a reverse flow check valve.
• Do not use the tools that are used with conventional refrigerants.
• Do not use a charging cylinder.
• Be especially careful when managing the tools.
• Do not use commercially available dryers.

4.1.2. For devices that use R410A refrigerant

• Use ester oil, ether oil, alkylbenzene oil (small amount) as the refrigeration oil

applied to the flared sections.

• Use C1220 copper phosphorus, for copper and copper alloy seamless pipes,

to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses
specified in the table to the below. Make sure the insides of the pipes are
clean and do not contain any harmful contaminants such as sulfuric com-
pounds, oxidants, debris, or dust.

 Warning:

When installing or moving the air conditioner, use only the specified refriger-
ant (R410A) to charge the refrigerant lines. Do not mix it with any other refriger-
ant and do not allow air to remain in the lines. Air enclosed in the lines can
cause pressure peaks resulting in a rupture and other hazards.

RP71-140

Liquid pipe

ø9.52 thickness 0.8 mm

Gas pipe

ø15.88 thickness 1.0 mm

• Do not use pipes thinner than those specified above.

A

 Die

B

 Copper pipe

A

A

B

Fig. 4-2

Copper pipe O.D.

A (mm)

(mm)

Flare tool for R-22·R407C

Flare tool for R410A

Clutch type

ø6.35 (1/4")

0 - 0.5

1.0 - 1.5

ø9.52 (3/8")

0 - 0.5

1.0 - 1.5

ø12.7 (1/2")

0 - 0.5

1.0 - 1.5

ø15.88 (5/8")

0 - 0.5

1.0 - 1.5

ø19.05 (3/4")

0 - 0.5

1.0 - 1.5

4.2. Indoor unit (Fig. 4-1)

• When commercially available copper pipes are used, wrap liquid and gas pipes

with commercially available insulation materials (heat-resistant to 100 °C or more,
thickness of 12 mm or more).

• The indoor parts of the drain pipe should be wrapped with polyethylene foam insu-

lation materials (specific gravity of 0.03, thickness of 9 mm or more).

• Apply thin layer of refrigerant oil to pipe and joint seating surface before tightening

flare nut.

• Use two wrenches to tighten piping connections.
• Use leak detector or soapy water to check for gas leaks after connections are com-

pleted.

• Use refrigerant piping insulation provided to insulate indoor unit connections. Insu-

late carefully following shown below.

• Use correct flare nuts meeting the pipe size of the outdoor unit.

Available pipe size

RP71

RP100, 125, 140

Liquid side

ø9.52

ø9.52

Gas side

ø15.88

ø15.88

 : Factory flare nut attachment to the heat-exchanger.

B

Flare nut tightening torque

Copper pipe O.D.

Flare nut O.D.

Tightening torque

(mm)

(mm)

 (N·m)

ø6.35

17

14 - 18

ø6.35

22

34 - 42

ø9.52

22

34 - 42

ø12.7

26

49 - 61

ø12.7

29

68 - 82

ø15.88

29

68 - 82

ø15.88

36

100 - 120

ø19.05

36

100 - 120

90

°

 

±

0.5

°

ø

A

R0.4~R0.8

A

45

°±

2

°

B

Apply refrigerating machine oil over the entire flare seat surface.

Be sure to only use the flare nuts
that came with the unit.

Fig. 4-1

A

Flare cutting dimensions

Copper pipe O.D.

Flare dimensions

(mm)

 øA dimensions (mm)

ø6.35

8.7 - 9.1

ø9.52

12.8 - 13.2

ø12.7

16.2 - 16.6

ø15.88

19.3 - 19.7

ø19.05

23.6 - 24.0

Содержание Mr.Slim PEA-RP100EA

Страница 1: ...glish INSTALLATION MANUAL For safe and correct use read this manual and the outdoor unit installation manual thoroughly before installing the air conditioner unit Air Conditioners PEA RP EA FOR INSTALLER ...

Страница 2: ...o charge the refrigerant lines Do not mix it with any other refrig erant and do not allow air to remain in the lines Air enclosed in the lines can cause pressure peaks resulting in a rupture and other hazards Use only accessories authorized by Mitsubishi Electric and ask a dealer or an authorized technician to install them If accessories are incorrectly in stalled water leakage electric shock or f...

Страница 3: ...ed dust may accumulate and breakdown may result Do not touch any switch with wet hands Electric shock may result Do not touch the refrigerant pipes with bare hands during operation The refrigerant pipes are hot or cold depending on the condition of the flowing refrigerant If you touch the pipes burns or frostbite may result After stopping operation be sure to wait at least five minutes before turn...

Страница 4: ...3 The ceiling work differs according to the construction of the building Building con structors and interior decorators should be consulted for details 1 Wooden structures Use tie beams single storied houses or second floor beams two story houses as reinforcing members Wooden beams for suspending air conditioners must be sturdy and their sides must be at least 6 cm long if the beams are separated ...

Страница 5: ...nd other hazards RP71 140 Liquid pipe ø9 52 thickness 0 8 mm Gas pipe ø15 88 thickness 1 0 mm Do not use pipes thinner than those specified above A Die B Copper pipe A A B Fig 4 2 Copper pipe O D A mm mm Flare tool for R 22 R407C Flare tool for R410A Clutch type ø6 35 1 4 0 0 5 1 0 1 5 ø9 52 3 8 0 0 5 1 0 1 5 ø12 7 1 2 0 0 5 1 0 1 5 ø15 88 5 8 0 0 5 1 0 1 5 ø19 05 3 4 0 0 5 1 0 1 5 4 2 Indoor unit...

Страница 6: ...r Outdoor connecting cable Use buffer bushing to prevent tensile force to the terminal bed F The Indoor Outdoor connecting cables G Tensile force H Knockout hole for the remote controller cables Use ordinary bushing I The remote controller cables s s s s s Selecting non fuse breaker NF or earth leakage breaker NV 4 Installing the refrigerant piping E F D C B 4 3 Refrigerant and drainage piping loc...

Страница 7: ...owever between S3 and S1 these terminals are not electrically insulataed by the transformer or other device Notes 1 Wiring size must comply with the applicable local and national code 2 Power supply cords and indoor unit outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 245 IEC 57 3 Install an earth longer than other cables Indoor unit model Indo...

Страница 8: ...ircuit rating Wiring Wire No size mm 2 There are three types of labels labels A B and C Affix the appropriate labels to the units according to the wiring method Electric heater For models with heater Connectors connections when shipped from the factory are for indoor unit power supplied from outdoor unit Indoor unit power supplied from outdoor unit when shipped from factory If the indoor and outdo...

Страница 9: ... indoor unit 6 5 Function settings Wired remote controller Fig 6 7 Changing the power voltage setting Be sure to change the power voltage setting depending on the voltage used 1 Go to the function setting mode Switch OFF the remote controller Press the A and B buttons simultaneously and hold them for at least 2 seconds FUNCTION will start to flash 2 Use the C button to set the refrigerant address ...

Страница 10: ...sting pipes that carried R22 refrigerant replacement op eration must be performed before performing a test run If new pipes are used these procedures are not necessary If existing pipes that carried R22 refrigerant are used for the RP3 model these procedures are not necessary The replacement operation cannot be performed Replacement operation procedures 1 Supply power 2 Set DIP switch SW8 2 on the...

Страница 11: ...E Check code F Unit address Fig 8 2 ERROR CODE ERROR CODE B F E PAR 21MAA ON OFF FILTER CHECK OPERATION CLEAR TEST TEMP MENU BACK DAY MONITOR SET CLOCK ON OFF ERROR CODE C B A E D 8 Test run Output pattern A Errors detected by indoor unit Beeper sounds OPERATION Symptom Remark INDICATOR lamp flashes Check code Number of times 1 P1 Intake sensor error 2 P2 P9 Pipe Liquid or 2 phase pipe sensor erro...

Страница 12: ...outdoor units Make sure that this LED is always blinking 8 4 Check of drainage During the trial run ensure the water is being properly drained out and that no water is leaking from joints Always check this during installation even if the unit is not required to provide cooling drying at that time 8 Test run Output pattern B Errors detected by unit other than indoor unit outdoor unit etc Beeper sou...

Страница 13: ... press the ON OFF button to deactivate the maintenance mode Stable operation Using the maintenance mode the operation frequency can be fixed and the op eration can be stabilized If the air conditioner is stopped use the following proce dure to start this operation COOL STABLE MODE HEAT STABLE MODE STABLE MODE CANCEL Stable cooling operation Stable heating operation Stable operation cancellation Di...

Страница 14: ......

Страница 15: ......

Страница 16: ...sure to put the contact address telephone number on this manual before handing it to the customer HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Printed in Thailand BG79U642H01 ...

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