 We Mechanical Services Limited
proudly providing some insight into
the complexities of automotive air
conditioning units. Because in most
cases without looking at your
vehicle, we simply can’t tell what’s
wrong with it. Most of our customers
don’t realize that their vehicle Air
Conditioning is a very complicated
system.
Many people believe or have been
mislead that their Vehicle Air
Conditioners has simply run out of
gas and needs refilling.
This is rarely the case.
The purpose of the air conditioning is to
achieve a controlled environment so that the
human body is comfortable during all ranges
of temperature.
 This is achieved by monitoring, cooling,
circulation and improving air quality and
controlling the humidity within the vehicle.
The following information is intended as a basic guide to automotive air
conditioning refrigeration, although the information is pepped with hints which
may assist you in areas of services and having repairing of the air conditioner,
the competent repair of the automotive air conditioner must be served by an
accredited qualified, experienced technician. .
 We are Specialist In:
- Diagnosis system components
- Common causes of compressor failure
- Recovery Refrigerant
- Testing compressor efficiency
- Compressor noise analysis
- Diagnosis and repairing of auto air con electrical
- Blockage on TX value and driers
- Air flow efficiency
- Air flow restriction
- Auto air conditioning installation and repairs
- Direct Drop in refrigerant
- Aluminum welding
- Repairing gas leakage
- Vacuum and charging gas
- Repairing of newflexible hose and hydraulic press
- Spare parts
About the Auto Air Conditioning System
The performance of an air conditioning system can only be accurately evaluated on hot days or warm days
with high humidity levels. Without significant “heat loading” on the evaporator/ condenser, high ambient/ high
humidity performance cannot be guaranteed.
 Receiver Drier
Absorbs any harm full moisture when liquid passes through and
acts as a receiver for extra refrigerant in times of high demand.
Expansion values
Expansion values sense the outlet temperature of evaporation coil
and vary their opening despondent on temperature.
Compressor
A Mechanical pump with a purpose to create a low pressure
condition at the compressor inlet and also is to compress the low
pressure vapor.
 Evaporator Coil
Evaporator coil is a coil that absorbs heat from the cabin air
coursing the refrigerant to change state from liquid to vapor
located beneath your glove box.
Condenser Coil
 Condenser coil is a heat exchanger basically with the primary
function of dissipating the heat absorbed from the cabin to cooler
outside air a process to which heat causes refrigerant to change
state from vapor to liquid condensor coil located in front of your
vehicles radiator.
The dried high pressure/temperature liquid is then forced through the expansion valve where the valve
regulates of the high pressure liquid as a spray into relatively low pressure environment of the evaporator.
 Our technicians are fully qualified in the field of Auto Air
Conditioning. Our Workshop is fully equipped to cater for
any auto Air Conditioning requirements.
To have an evaluation and to find out more about your
system, call the professionals in Auto Air Conditioning.
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