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DELOREAN WORKSHOP MANUAL - Free

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v<br />

Heating and Air Conditioning<br />

Air conditioning systems are filled with liquid or<br />

gaseous refrigerant which is under high pressure at<br />

most times.<br />

The closed system must be kept free of any dirt,<br />

air, or water vapor and liquid. When servicing an<br />

air conditioned car, observe the following:<br />

1. Do not steam clean, solder, weld or braze near<br />

the air conditioning hoses, connections or<br />

components.<br />

2. Do not open a refrigerant line or connection<br />

except when necessary. Cover all openings<br />

with clean tape, caps, or plugs, if this occurs.<br />

3. Dp not adjust the refrigerant valves.<br />

LIQUID REFRIGERANT<br />

KEEP LIQUID REFRIGERANT AWAY FROM EYES<br />

AND SKIN. Liquid refrigerant can affect a person's<br />

eyes and skin because it freezes the tissues it<br />

contacts. SAFETY GOGGLES should always be<br />

worn when servicing refrigerant systems. If the<br />

refrigerant should come in contact with the eyes,<br />

do not rub them. Splash the eyes, or the affected<br />

area, with large quantities of cold water for several<br />

minutes. If further medication is necessary, the<br />

affected area should be checked and treated by a<br />

physician.<br />

ALWAYS EXHAUST REFRIGERANT VAPORS<br />

AWAY FROM CAR OR THROUGH WALL OR<br />

ROOF VENTS<br />

While Refrigerant-12 is normally not poisonous, if<br />

large quantities are discharged in a room with an<br />

open flame or sucked into the car engine while<br />

running, dangerous chemicals will be produced.<br />

Engines will be connected to exhaust tubes —<br />

ventilated rooms are required when servicing the<br />

A/C System.<br />

SAFETY PRECAUTIONS<br />

AVOID CONTACT WITH SKIN<br />

N:04:01<br />

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The refrigerant at atmospheric pressure vaporizes<br />

rapidly so that if allowed to get on the skin, the<br />

latent heat of vaporization will rob the heat from<br />

the skin at that point with danger of frost bite at<br />

that part. It is especially dangerous to get the<br />

refrigerant in the eye as the moisture in the eyeball<br />

will be frozen with the risk of being blinded. Thus,<br />

when handling refrigerant, safety goggles should<br />

be worn and care taken not to get the refrigerant<br />

on the skin (Fig. 26)<br />

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t^'-H<br />

PSB<br />

mm<br />

F~->.<br />

f^^

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