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375 SE
800-00162
AIR CONDITIONER MAINTENANCE
AIR CONDITIONER MAINTENANCE
AIR CONDITIONER MAINTENANCE
AIR CONDITIONER MAINTENANCE
AIR CONDITIONER MAINTENANCE
Allow only certified personnel to service and maintain the air conditioning system. The Clean Air Act of 1992 states
that anyone who works on air conditioning systems must be certified as proof of their training. Organizations such as
the Mobile Air Conditioning Society (MACS) and the National Institute for Automotive Service Excellence (ASE) are
approved by the Environmental Protection Agency (EPA) as organizations with approved independent testing and
certification programs. Contact your local EPA office for more information.
ADDING REFRIGERANT AND CHECKING THE SYSTEM
ADDING REFRIGERANT AND CHECKING THE SYSTEM
ADDING REFRIGERANT AND CHECKING THE SYSTEM
ADDING REFRIGERANT AND CHECKING THE SYSTEM
ADDING REFRIGERANT AND CHECKING THE SYSTEM
Always use refrigerant R134a in this equipment.
WARNING
WARNING
WARNING
WARNING
WARNING
Air conditioning systems operate under extreme high pressure. The containers
Air conditioning systems operate under extreme high pressure. The containers
Air conditioning systems operate under extreme high pressure. The containers
Air conditioning systems operate under extreme high pressure. The containers
Air conditioning systems operate under extreme high pressure. The containers
refrigerants are sold in are also under pressure. When released into the air, a
refrigerants are sold in are also under pressure. When released into the air, a
refrigerants are sold in are also under pressure. When released into the air, a
refrigerants are sold in are also under pressure. When released into the air, a
refrigerants are sold in are also under pressure. When released into the air, a
refrigerant boils away and becomes a gas. Its temperature drops INSTANTLY.
refrigerant boils away and becomes a gas. Its temperature drops INSTANTLY.
refrigerant boils away and becomes a gas. Its temperature drops INSTANTLY.
refrigerant boils away and becomes a gas. Its temperature drops INSTANTLY.
refrigerant boils away and becomes a gas. Its temperature drops INSTANTLY.
Improper handling can cause frostbite and eye damage. If it spills on your skin
Improper handling can cause frostbite and eye damage. If it spills on your skin
Improper handling can cause frostbite and eye damage. If it spills on your skin
Improper handling can cause frostbite and eye damage. If it spills on your skin
Improper handling can cause frostbite and eye damage. If it spills on your skin
or in your eyes, flood the area with cool water and
or in your eyes, flood the area with cool water and
or in your eyes, flood the area with cool water and
or in your eyes, flood the area with cool water and
or in your eyes, flood the area with cool water and SEEK MEDICAL ATTENTION
SEEK MEDICAL ATTENTION
SEEK MEDICAL ATTENTION
SEEK MEDICAL ATTENTION
SEEK MEDICAL ATTENTION
IMMEDIATELY.
IMMEDIATELY.
IMMEDIATELY.
IMMEDIATELY.
IMMEDIATELY. Breathing refrigerant gas can result in respiratory problems,
Breathing refrigerant gas can result in respiratory problems,
Breathing refrigerant gas can result in respiratory problems,
Breathing refrigerant gas can result in respiratory problems,
Breathing refrigerant gas can result in respiratory problems,
especially for people with cardiovascular disease.
especially for people with cardiovascular disease.
especially for people with cardiovascular disease.
especially for people with cardiovascular disease.
especially for people with cardiovascular disease.
Always wear safety goggles or a face shield and allow adequate ventilation when
Always wear safety goggles or a face shield and allow adequate ventilation when
Always wear safety goggles or a face shield and allow adequate ventilation when
Always wear safety goggles or a face shield and allow adequate ventilation when
Always wear safety goggles or a face shield and allow adequate ventilation when
working with refrigerant.
working with refrigerant.
working with refrigerant.
working with refrigerant.
working with refrigerant.
WARNING
WARNING
WARNING
WARNING
WARNING
Older air conditioning equipment may contain R-12, a substance which harms
Older air conditioning equipment may contain R-12, a substance which harms
Older air conditioning equipment may contain R-12, a substance which harms
Older air conditioning equipment may contain R-12, a substance which harms
Older air conditioning equipment may contain R-12, a substance which harms
public health and environment by destroying ozone in the upper atmosphere.
public health and environment by destroying ozone in the upper atmosphere.
public health and environment by destroying ozone in the upper atmosphere.
public health and environment by destroying ozone in the upper atmosphere.
public health and environment by destroying ozone in the upper atmosphere.
To remove R-12 from the air conditioning system, use service equipment certified
To remove R-12 from the air conditioning system, use service equipment certified
To remove R-12 from the air conditioning system, use service equipment certified
To remove R-12 from the air conditioning system, use service equipment certified
To remove R-12 from the air conditioning system, use service equipment certified
to meet the requirements of S.A.E. J2209 or J1990.
to meet the requirements of S.A.E. J2209 or J1990.
to meet the requirements of S.A.E. J2209 or J1990.
to meet the requirements of S.A.E. J2209 or J1990.
to meet the requirements of S.A.E. J2209 or J1990.
1. Evacuate the system, test for leaks and charge with refrigerant. The unit requires 4 - 6 pounds (depending on hose
length) of R134a refrigerant.
2. Turn the ignition switch to the On position.
3. Turn the thermostat to the coldest point and the fan switch to High.
a. The clutch should click on and be engaged. If not, see step 8.
b. The condenser fan and evaporator blower should be turning at high speed.
4. Turn the fan switch to medium and low positions and check that the evaporator blower slows down.
5. Turn the thermostat off and clutch should disengage.
6. Start engine and run at 1500 - 2000 rpm. Turn unit on Full Cold, High Fan. Check sight glass on receiver-drier for
bulbbles. Add 6 to 8 ounces more R134a refrigerant after the sight glass just clears.
7. Check thermostat to be sure clutch cycles on and off.
8. If clutch does not engage, the system may not have been charged to a high enough pressure to actuate the
Binary Switch. Place a jumper wire across the switch and run system until it is fully charged. Then remove the
jumper wire.
