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English

6

Refrigerant Piping Work

1.

Installing outdoor unit

1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Indoor/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 least 30mm in height under the outdoor 
unit’s feet.

3) In cold areas, do not use a drain hose with the outdoor unit.

(Otherwise, drain water may freeze, impairing heating performance.)

3.

Refrigerant piping

1) 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.
• Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas.

2) To prevent gas leakage, apply refrigeration machine oil on both inner and outer surfaces of the flare. 

(Use refrigeration oil for R410A)

Drain-water hole

Bottom frame

Drain plug

While pressing

Hose (available commercially,
inner dia. 16mm)

Coat here with refrigeration machine oil 

Torque wrench

Piping union

Flare nut

Spanner

Flare nut tightening torque 

Flare nut for 

φ

6.4

14.2-17.2N • m

   

(144-175kgf • cm)

Flare nut for 

φ

9.5

32.7-39.9N • m

(333-407kgf • cm)

Flare nut for 

φ

12.7

49.5-60.3N • m

(505-615kgf • cm)

Flare nut for 

φ

15.9

61.8-75.4N • m

(630-769kgf • cm)

Valve cap tightening

torque

Liquid pipe

26.5-32.3N • m

(270-330kgf • cm)

Gas pipe

48.1-59.7N • m

(490-610kgf • cm)

Service port cap 

tightening torque

10.8-14.7N • m

(110-150kgf • cm)

01_EN_3P164392-2E.fm  Page 6  Wednesday, May 24, 2006  2:47 PM

Summary of Contents for 2MXS52E2V1B

Page 1: ...ссêий English Türkçe Installation manual R410A Split series Montaj kýlavuzlarý R410A Split serisi Installationsanleitung Split Baureihe R410A Manuel d installation Série split R410A Montagehandleiding R410A Split systeem Manual de instalación Serie Split R410A Manuale d installazione Serie Multiambienti R410A Εγχειρßδιο εγκατÜστασηò διαιροýìενηò σειρÜò R410A Manual de Instalação Série split R410A ...

Page 2: ... KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ...

Page 3: ... cause terminal overheating electrical shock or fire If any refrigerant has leaked out during the installation work ventilate the room The refrigerant produces a toxic gas if exposed to flames After all installation is complete check to make sure that no refrigerant is leaking out The refrigerant produces a toxic gas if exposed to flames When installing or relocating the system be sure to keep the...

Page 4: ... depending on radio wave conditions 8 In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shorten the life of the air condi tioner 9 Since drain flows out of the outdoor unit do not place under the unit anything which must be kept away from moisture NOTE Cannot be installed hanging from ceiling or stacked CAUTION When operating the air conditioner in a low outdoor a...

Page 5: ...ng sure that no gap is left in the insulation pipe s cut line Wrap the insulation pipe with the finishing tape from bottom to top Caulk pipe hole gap with putty Foot bolt hole centres 58cm Foot bolt hole centres 33cm 25cm from wall Allow space for piping and electrical servicing Allow 30cm of work space below the ceiling surface If there is the danger of the unit falling or overturning fix the uni...

Page 6: ...autions on Installation Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts Prepare four sets of M8 or M10 foundation bolts nuts and washers each which are available on the market It is best to screw in the foundati...

Page 7: ...t as possible Shortest allow able length per room is 3m Outdoor unit capacity class 2MXS52 2AMX52 3MXS52 3AMX52 3MKS50 4MKS58 Piping to each indoor unit 25m max Total length of piping between all units 50m max If the outdoor unit is positioned higher than the indoor units If the outdoor unit is positioned otherwise If lower than one or more indoor units More than 100 More than 350 Side view 1200 o...

Page 8: ...urns by hand Then tighten them fully with the torque wrenches Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas 2 To prevent gas leakage apply refrigeration machine oil on both inner and outer surfaces of the flare Use refrigeration oil for R410A Drain water hole Bottom frame Drain plug While pressing Hose available commercially inner dia 16mm ...

Page 9: ...sure valve Lo and completely close its high pressure valve Hi High pressure valve subsequently requires no operation 3 Apply vacuum pumping Check that the compound pressure gauge reads 0 1MPa 76cmHg Evacuation for at least 1 hour is recommended 4 Close gauge manifold s low pressure valve Lo and stop vacuum pump Leave as is for 4 5 minutes and make sure the coupling meter needle does not go back If...

Page 10: ... a pipe bender for bending Bending radius should be 30 to 40mm or larger Selection of copper and heat insulation materials When using commercial copper pipes and fittings observe the following 1 Insulation material Polyethylene foam Heat transfer rate 0 041 to 0 052W mK 0 035 to 0 045kcal mh C Refrigerant gas pipe s surface temperature reaches 110 C max Choose heat insulation materials that will w...

Page 11: ...s been used for previous installations Only use parts which are delivered with the unit 4 Do never install a drier to this R410A unit in order to guarantee its lifetime 5 The drying material may dissolve and damage the system 6 Incomplete flaring may cause refrigerant gas leakage Cut exactly at right angles Remove burrs Set exactly at the position shown below A Flaring Die Check Flare s inner surf...

Page 12: ...d connection port of the outdoor unit where the flare nut comes in Use an appropriate wrench to avoid damaging the connection thread by overtightening the flare nut Flare nut tightening torque Flare nut for φ9 5 32 7 39 9N m 333 407kgf cm Flare nut for φ12 7 49 5 60 3N m 505 615kgf cm Flare nut for φ15 9 61 8 75 4N m 630 769kgf cm No 1 φ15 9 φ12 7 No 2 φ12 7 φ9 5 No 3 φ15 9 φ12 7 No 4 φ12 7 φ9 5 N...

Page 13: ...shut off valve with a hexagonal wrench 4 After two to three minutes close the gas shut off valve and stop forced cooling operation 1 Forced operation 1 Turn the Operation Mode switch SW2 to COOL Heat pump only 2 Press the Forced Operation switch SW1 to begin forced cooling Press the Forced Operation switch SW1 again to stop forced cooling Gas shut off valve Close Hexagonal wrench Liquid shut off v...

Page 14: ...ews The screws are packed with the terminal board 3 Pull the wire and make sure that it does not disconnect Then fix the wire in place with a wire stop Earth This air conditioner must be earthed For earthing follow the applicable local standard for electrical installations Safety breaker Earth leakage circuit breaker Outdoor unit 50Hz 220 240V Be sure to use the dedicated circuits To room B To roo...

Page 15: ...perating all other indoor units do not operate and enter standby mode according to the operation mode of the set indoor unit 1 2 Priority during high power operation If the indoor unit which is set for priority room setting is operating at high power the capabilities of other indoor units will be somewhat reduced Power supply gives priority to the indoor unit which is set for priority room setting...

Page 16: ... procedure Remove the SW5 jumper switch Once the settings are complete reset the power NOTE Install the removed jumper switch as described below This switch will be needed to later disable this setting COOL HEAT Mode Lock S15 Heat Pump Units Only Use the S15 connector to set the unit to only cool or heat Setting to only heat H short circuit pins 1 and 3 of the connector S15 Setting to only cool C ...

Page 17: ...TE 1 For two rooms LED 3 and 4 are not displayed and for three rooms LED 4 is not displayed 2 If the outside air temperature is 5 C or less the wiring error check function will not operate 3 After wiring error check operation is completed LED indication will continue until ordinary operation starts This is normal 4 Follow the product diagnosis procedures Check the nameplate on the underside of the...

Page 18: ... procedures and temperature adjustment 2 Even when the air conditioner is not operating it consumes some electric power If the customer is not going to use the unit soon after it is installed turn OFF the breaker to avoid wasting electricity 3 If additional refrigerant has been charged because of long piping list the amount added on the nameplate on the reverse side of the shut off valve cover Coo...

Page 19: ... 0606 HT 3P164392 2E M05B110A ...

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