Electrolux FAC124P1A Instrucciones de operaciones descargar pdf (Pagina 120)

Section 6 Sealed System

6-6

Testing for Refrigerant Leaks

If the system is diagnosed as short of refrigerant and the

system has not been recently opened, there is

probably a leak in the system. Adding refrigerant

without first locating and repairing the leak or replacing

the component will not permanently correct the difficulty.

The leak must be found. Sufficient refrigerant may have

escaped to make it impossible to leak test effectively.

In such cases, add a ¼” line piercing valve to the

compressor process tube. Add sufficient refrigerant

vapor to increase the pressure to 40 to 50 lb. per sq.

in. Check the low side for leaks. Run the compressor 2

or 3 minutes and check the high side for leaks. Recover

refrigerant using an EPA approved recovery system.

Compressor Oil Contamination

To check for contamination, obtain oil sample from old

compressor.

1. If the oil has burned odor, but no color change

or residue, follow instructions on the next page

“Installing A New Compressor”.

2. If oil has a burned odor and a sugar or gritty feel as

well as showing signs of contamination (dark color),

follow instructions on page 6-9, “To Flush The

System”. Remove as much of contamination as

possible from system before installing new

compressor and filter-drier.

NEVER install a new compressor without first

checking for possible system contamination.

CAUTION

The line piercing valve (clamp-on type) should be

used for test purposes only. It must be removed from

system after it has served its purpose.

NOTE

It is recommended that system be flushed with dry

Nitrogen. However, if refrigerant is used to flush the

system you must look at the serial plate to see what

type of refrigerant is used in the system. This is the

only refrigerant that can be used to flush the system

and it must be recovered.

NOTE

Figure 6-3.

-40.0

-35.0

-30.0

-25.0

-20.0

-15.0

-10.0

-5.0

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

60.0

65.0

70.0

75.0

80.0

85.0

90.0

95.0

100.0

105.0

110.0

115.0

120.0

125.0

130.0

135.0

140.0

145.0

150.0

3.0

5.4

8.0

10.9

14.1

17.6

21.3

25.4

29.9

34.7

39.9

45.6

51.6

58.2

65.2

72.6

80.7

89.2

98.3

108

118

129

141

153

166

180

195

210

226

243

261

280

300

321

342

365

389

----

-4.4

-0.6

1.8

4.1

6.6

9.4

12.5

15.9

19.6

23.6

28.0

32.8

38.0

43.6

49.6

56.1

63.1

70.6

78.7

87.3

96.8

106

117

128

140

153

166

181

196

211

229

247

266

286

307

329

353

----

11.6

14.9

18.5

22.5

26.9

31.7

36.8

42.5

48.6

55.2

62.3

70.0

78.3

87.3

96.8

107

118

130

142

155

170

185

201

217

235

254

274

295

317

340

365

391

418

446

476

507

539

573

608

0.5

2.6

4.9

7.4

10.1

13.2

16.5

20.1

24.0

28.2

32.8

37.7

43.0

48.8

54.9

61.5

68.5

76.0

84.0

92.6

102

111

121

132

144

156

168

182

196

211

226

243

260

278

297

317

337

359

382

-40.0

-37.2

-34.4

-31.7

-28.9

-26.1

-23.3

-20.6

-17.8

-15.0

-12.2

-9.4

-6.7

-3.9

-1.1

1.7

4.4

7.2

10.0

12.8

15.6

18.3

21.1

23.9

26.7

29.4

32.2

35.0

37.8

40.6

43.3

46.1

48.9

51.7

54.4

57.2

60.0

62.8

65.6

R-22 Pressure Pressure R-410A

Temp

°F

Temp

°C

Refrigerant Vapor Pressures

R407C

Liquid

R407C

Vapor

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 139 140

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Electrolux FAC124P1A Instrucciones de operaciones Pagina 120

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