BMW 7 Series: Overview Of Heater - A/C System Components

Fig. 167: Overview Of Heater And A/C System Components

1. Condenser for air conditioner
2. Drier insert for air conditioner
3. Independent heater and attachment parts
4. Water valve
5. Heater - A/C system and attachment parts
6. Fan and attachment parts
7. Compressor

SAFETY INSTRUCTIONS FOR HANDLING REFRIGERANT OIL

WARNING: Risk of injury! Refrigerant circuit is under high pressure! Work on the refrigerant circuit may only be carried out by experts ! Draw off refrigerant without fail BEFORE all repair work on the refrigerant circuit.

The refrigerant circuit is depressurized AFTER drawing off!

• Before conducting repairs, check the actual pressure drop on the pressure gauge of the A/C service unit.

  Read and comply with the relevant operating instructions for the A/C service unit used.

Protective measures/rules of conduct

• Wear safety goggles
• Wear oil-resistant protective gloves
• Do not smoke!
• Observe country-specific safety regulations.

First aid measures

• If swallowed: Do NOT induce vomiting, unless expressly instructed to do so by medical personnel. Do not administer anything to an unconscious person through their mouth. Consult a doctor immediately if larger quantities of this substance are swallowed. Loosen tight-fitting items of clothing (e.g. collar, tie, belt or similar).
• Eye contact: Remove contact lenses if worn. In the event of eye contact, rinse eyes for at least 15 minutes with plenty of water. It is essential to use WARM WATER. Consult a doctor.
• Skin contact: In the event of skin contact, rinse immediately with plenty of water. Remove contaminated clothes and shoes. Wash affected clothes before wearing again. Clean shoes thoroughly before reusing.

  Call for a doctor.

• After inhalation: If inhaled, take the person affected outside into fresh air immediately and keep them under supervision. Call for a doctor. If breathing difficulties are experienced, administer additional oxygen. If the person affected stops breathing, administer the kiss of life.

IMPORTANT: Refrigerant is hygroscopic and must therefore be stored in suitable containers that are sealed airtight! Refrigerant oil is non-combustible and non-explosive at normal temperatures.

Nevertheless, the following points must be observed:

• Do not store in the vicinity of flames, heat sources or strongly oxidizing materials
• Suitable extinguishants are carbon dioxide (CO2 ) dry extinguishant and foam

Recycling

Catch and dispose of emerging refrigerant oil.

Observe country-specific waste disposal regulations.

Absorb escaping refrigerant oil with fluid-binding material.

Notify the relevant authorities if larger amounts of refrigerant oil are discharged into aboveground water supplies, drainage systems or subsoil.

SAFETY INSTRUCTIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A

WARNING: Risk of injury! Refrigerant circuit is under high pressure! Work on the refrigerant circuit may only be carried out by experts! Draw off refrigerant without fail BEFORE all repair work on the refrigerant circuit.

The refrigerant circuit is depressurized AFTER drawing off.

• The pressure gauge on the A/C service unit must be checked for the actual pressure drop prior to repair work.

It is absolutely essential to read and observe the relevant operating instructions for the A/C service unit used!

Protective measures/rules of conduct

• Wear safety goggles
• Wear oil-resistant protective gloves
• Do not smoke!
• Observe country-specific safety regulations.

First aid measures

• Eye contact: In the event of contact with the eyes, rinse immediately with plenty of running water and consult an ophthalmologist.
• Skin contact: In the event of contact with skin, remove affected clothing immediately and rinse with plenty of water.
• After inhalation: If refrigerant vapors are inhaled in greater concentrations, remove the person affected to an area of fresh air and keep them under supervision. Call for a doctor. If breathing problems are experienced, breathe additional oxygen. If the person affected is breathing with difficulty or has stopped breathing, incline the person's head at the neck and administer the kiss of life.

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