When the air heat passes the evaporator core, the air moisture
will condense on the evaporator core external surface, forms
water and flows out.
Evaporator is equipped with a temperature sensors to prevent
it from freezing. The sensor measures the evaporator heat sink
surface temperature. If the temperature is below 2°C (36 ºF),
the compressor clutch will not continue to work. If the
temperature increases to 4°C ( 39 ºF) or above, the compressor
resume working. In the system equipped with automatic
temperature control, the sensor signal will first be transferred
to the air-conditioning module, and then transferred to the air
pressure switch through dedicated circuit. If the air pressure
meets the requirements, the corresponding air-conditioning
signal will be sent to ECM. ECM controls the compressor clutch
closing.
7. Refrigerant R-134a and Lubricant
Air-conditioning system refrigerant has the following roles
–
Absorb heat
–
Carry heat
–
Release heat
This vehicle uses R-134a refrigerant, which is a non-toxic,
flame retardant, transparent, colorless liquefied gas.
Before servicing the air-conditioning system. Refer to the
refrigerant piping and fittings disposal and the chemical stability
instructions
R-134a system uses special synthetic lubricant 100 PG
refrigerant oil, which absorbs water. Refrigerant needs to be
stored in airtight containers. R-134a air-conditioning systems
can only use 100 PG synthetic refrigerant oil for internal
circulation. Only apply fossil based 525 viscosity refrigerant oil
to installation thread and O-ring. Using other lubricants will
cause the compressor or components malfunction.
Follow the manual steps in the following repairs:
–
Refrigerant recovery and recycling
–
Adding oil
–
Drain cooling system
–
Refill cooling system
8. Air-conditioning High Pressure Pipe, Air-
conditioning Low Pressure Pipe, Air-
conditioning Pressure Switch
This vehicle uses high pressure pipe and low pressure pipe
(air-conditioning hard pipes and / or hose) to form a closed
system. Refrigerant and lubricating oil flow in this closed
system, to complete the refrigerant cycle. Air-conditioning hard
pipe consists of the aluminum pipe and the corresponding
joints, air-conditioning hose consists rubber hose and the
corresponding joints.
Air pressure switch is a three-state pressure switch,
transmitting the air pressure signal.
Pressure Switch Values:
Name
Pressure Value
Signal
Values
Metric
(MPa)
US English
(psi)
High Voltage
Switch
2.51-3.14
364.0-455.3
OFF
Medium
Voltage
Switch
1.52
220.4
ON
Low Voltage
Switch
0.196-0.201
28.4-29.1
OFF
8-8
Automatic Air-conditioning
Heating, Ventilation and A/C System
EC718/EC718RV EC715/EC715RV 10/2009
Содержание EC715 2009
Страница 4: ......
Страница 312: ...2 3 4 5 Fuel Injectors FE02 2022b 2 230 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 516: ...2 7 4 3 Front Muffler Assembly FE02 2032b 2 434 Exhaust System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 517: ...2 7 4 4 Rear Muffler Assembly FE02 2033b Engine Exhaust System JL4G18 D 2 435 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 519: ...2 7 4 6 Front Muffler Heat Shield FE02 2034b Engine Exhaust System JL4G18 D 2 437 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1164: ......
Страница 1257: ...Next Step 9 System normal Brake System ABS TCS EBD ESP 6 93 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1278: ...6 7 8 Special Tools and Equipment 6 7 8 1 Trigger Tool FE06 1007b 6 114 TPMS Brake System EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1412: ...9 2 6 4 Warning lamp Always On Schematic 9 14 Airbag System Safety Protection Device EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1703: ...Rear Wiper Motor Hatchback FE11 2009c Body Electric Wipers Washers System 11 219 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1704: ...Washer Fluid Tank Sedan FE11 2010b 11 220 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1705: ...Washer Fluid Tank Hatchback FE11 2010c Body Electric Wipers Washers System 11 221 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1706: ...Rear Washer Nozzle Hatchback FE11 2011c 11 222 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1734: ...Next Step 13 System normal 11 250 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1860: ...BCM FE11 0803b 11 376 Remote Anti theft System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1951: ...Reverse Radar Control Module FE11 1207b Body Electric Reverse Radar 11 467 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1954: ...16 R Control Module Power Supply Gear In Reverse 12 V 11 470 Reverse Radar Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 2008: ......
Страница 2104: ...FE12 0085c 2 Install the hatchback seal 12 96 Interior Trim Body Sheet Metal and Painting EC718 EC718RV EC715 EC715RV 10 2009 ...