MICRO-AIR Artic Air 24 Guia de Instalação descarregar pdf (Página 35)

LEAK CHECKING, EVACUATING, AND CHARGING

Pressure / Temperature Chart for 404a

Temp Pressure Temp Pressure

°F PSI °F PSI

-50 0.6

-45 2.7 55 114.7

-40 5 60 125.3

-35 7.6 65 136.6

-30 10.4 70 148.6

-25 13.4 75 161.2

-20 16.8 80 174.6

-15 20.5 85 188.8

-10 24.5 90 203.7

- 5 28.8 95 219.4

0 33.5 100 235.9

+ 5 38.6 105 253.4

10 44 110 271.7

15 49.9 115 290.9

20 56.2 120 311.1

25 63 125 332.3

30 70.3 130 354.5

35 78.1 135 377.8

40 86.4 140 402.2

45 95.2 145 427.7

50 104.7 150 454.4

Handling Precautions for refrigerants and high-pressure gases

This refrigeration system contains 3.5 lbs of pressurized R-404a refrigerant gas and liquid. At a

temperature of 85

F the pressure is 189 PSI. As with any refrigerant gas, certain safety

precautions should be followed when handling R-404a. Bare skin exposed to liquid refrigerant

may suffer severe frostbite. Additionally, although R-404a is non-toxic it is heavier than air and

therefore displaces oxygen. Always provide proper ventilation when working in enclosed areas.

In the event of a massive refrigerant leak, get out of the area immediately. Never refill containers

with R-404a or subject any container to temperatures exceeding 120

F (50

C.).

R-404a produces hazardous and toxic byproducts if exposed to open flame or heating elements.

The presence of these by-products will be apparent by an acrid odor. Should an acrid odor be

detected when working near R-404a remove all persons from the area immediately. NEVER

USE A FLAME TYPE LEAK DETECTOR WITH R-404A.

When leak checking your system do not pressurize the tubing to greater than 250 psi. If you are

Page 35

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 62 63

Sem comentários

MICRO-AIR Artic Air 24 Guia de Instalação Página 35