background image

English

6

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

1) Do not mix any substance other than the specified refrigerant (R410A) into the refrigeration cycle.
2) When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.
3) R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.
4) 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 covers 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 15 metres

More than 15 metres

Run time

Not less than 10 min.

Not less than 15 min.

Gauge 
manifold

Compound 
pressure gauge

Pressure meter

Low-pressure 
valve

High-pressure 
valve

Charging 
hoses

Vacuum pump

Valve caps

Service port

Liquid 
stop 
valve

Gas 
stop 
valve

01_EN_3P188821-1C.fm  Page 6  Friday, March 9, 2007  10:52 AM

Содержание RXS71E3V1B

Страница 1: ...Espa ol Italiano Portugues T rk e English Montaj k lavuzlar R410A Split serisi Installation manual R410A Split series Installationsanleitung Split Baureihe R410A Manuel d installation S rie split R410...

Страница 2: ...kin 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 KR...

Страница 3: ...y do not put undue force on the electrical covers or panels Install covers over the wires Incomplete cover installation may cause terminal overheating electrical shock or fire If any refrigerant has l...

Страница 4: ...ing 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 conditioner 9 Since drain flows out of the outdoor unit d...

Страница 5: ...er of the unit falling use foot bolts or wires In sites with poor drainage use block bases for outdoor unit Adjust foot height until the unit is leveled Otherwise water leakage or pooling of water may...

Страница 6: ...tdoor 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 neces...

Страница 7: ...enches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas 2 To prevent gas leakage apply refrigeration oil on both inner and outer surfaces of the flare Use refrigerat...

Страница 8: ...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...

Страница 9: ...0 class 71 class 50 60 71 class 50 60 class 71 class 50 60 71 class O D 12 7mm O D 15 9mm O D 6 4mm I D 14 16mm I D 16 20mm I D 8 10mm Thickness 0 8mm Thickness 1 0mm Thickness 0 8mm Thickness 10mm Mi...

Страница 10: ...pace where there is a human 1 You can expand the operation range to 15 C by turning on switch B SW4 on the PCB If the outdoor temperature falls to 20 C or lower the operation will stop If the outdoor...

Страница 11: ...ioned following when wiring to the power supply terminal board Precautions to be taken for power supply wiring Use a round crimp style terminal for connection to the power supply terminal board In cas...

Страница 12: ...ction the unit disables restart operation for 3 minutes after it is turned off 1 3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts such as l...

Страница 13: ...0704 HT 3P188821 1C M06B069C Two dimensional bar code is a code for manufacturing 00_CV_3P188821 1C fm Page 2 Friday March 9 2007 10 41 AM...

Отзывы: