Section 22: HEATING AND AIR CONDITIONING
PA1553
11
NOTE
When starting the A/C compressor wait 5
seconds before checking pressures in order to
give the system a chance to build its pressure.
During the first 5 seconds after startup, the
compressor is active on 6 cylinders and the
A/C valve is open regardless of the pressure
readings.
In test mode, with the parking brake applied and
the passenger set point set to a value higher
than 64°F (18°C), the hot water circulating pump
is not set to OFF as it would normally do when
the outside temperature gets above 50°F
(10°C). This feature allows verification of the
pump when inside a garage. This is also useful
when working on the heating system to remove
air pockets trapped in the system.
When performing an A/C cooling test and having
the water pump shut off in switch/sensor test
mode is required, just set the passenger set
point temperature to the minimum 64°F (18°C)
to shut off the pump.
7.2
HVAC SYSTEM AND TEST MODE FOR
ELECTRIC MOTORS
The test mode allows testing the motors and
electric contactors without the need to have the
engine running (see Section 06: ELECTRICAL
under "TEST MODE FOR ELECTRICAL
MOTORS" for complete information).
Use this test mode for testing of the condenser
motors, the A/C compressor clutch activation,
left and right unloaders, evaporator motor, water
pump, and hot water solenoid valve.
7.3 PARTICULARITIES
Conditions for engaging the
2
nd
speed on the evaporator
motor (cooling demand).
The 2
nd
speed engages if the cabin area air temperature is 1 degree
above the set point and it revert to speed 1 if the temperature gets
equal or below the set point.
Conditions for hot water
recirculating pump activation
(heating demand).
The pump turns to OFF if the outside temperature is above 50°F
(10°C), when there is less demand for heating.
Note: To test a working pump, it is possible to keep it active even if
the outside temperature is above 50°F (10°C). See paragraph 7.2
HVAC SYSTEM AND TEST MODE FOR ELECTRIC MOTORS.
The compressor unloaders are
working based on pressure
and also on the difference
between the cabin area air
temperature and the set point.
2 left compressor cylinders:
Stop if: Cabin area air temperature is at less than 0.4°C degree above
the set point or if the compressor output is above 280 psi, or if the
compressor input is below 26 psi.
Restart if: Cabin area air temperature is 0.9°C or more above the set
point and the compressor pressure output is less than 220 psi and the
compressor pressure input is above 34 psi.
2 right compressor cylinders:
Stop if: Cabin area air temperature is at less than 0.2°C above the set
point or if the compressor input falls below 23 psi.
Restart if: Cabin area air temperature is 0.7°C or more above the set
point and the compressor input pressure is above 32 psi.
The A/C deactivation pressure
is 320 psi.
In case of high pressure, the analog pressure sensor connected to
the Multiplex module deactivates the compressor.
Содержание LE MIRAGE XLII
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Страница 438: ...Page No 12 NDS2 issue A Spicer SpecialityAxle Division Technical Publications Spicer Speciality Axle Division ...
Страница 464: ...Page No 18 Manual No NDS8 Spicer Speciality Axle Division Technical Publications Spicer Speciality Axle Division TP1193 ...
Страница 492: ...Section 12 BRAKE AND AIR SYSTEM PA1553 20 FIGURE 38 AIR OPERATED BRAKING SYSTEM W0 WE ...
Страница 493: ...Section 12 BRAKE AND AIR SYSTEM PA1553 21 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5 ...
Страница 500: ...Section 12 BRAKE AND AIR SYSTEM PA1553 28 FIGURE 46 ABS 4S 4M CONFIGURATION ...
Страница 528: ...16 BW2158 Honeywell Commercial Vehicle Systems Company 4 2001 Printed in USA ...
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Страница 844: ...Section 16 SUSPENSION PA1553 22 FIGURE 26 SWAY BAR FRONT SUSPENSION 16138D FIGURE 27 SWAY BAR REAR SUSPENSION 16014 ...
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Страница 1162: ...Section 22 HEATING AND AIR CONDITIONING PA1553 16 FIGURE 16 REFRIGERANT CIRCUIT CENTRAL SYSTEM 22247 ...
Страница 1165: ...Section 22 HEATING AND AIR CONDITIONING PA1553 19 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP ...
Страница 1186: ...Section 22 HEATING AND AIR CONDITIONING PA1553 40 FIGURE 42 REFRIGERANT CIRCUIT SMALL SYSTEM 22336 ...
Страница 1191: ...Section 22 HEATING AND AIR CONDITIONING PA1553 45 FIGURE 50 CENTRAL HEATING SYSTEM COMPONENTS 22338 ...
Страница 1201: ...Section 22 HEATING AND AIR CONDITIONING PA1553 55 FIGURE 64 HEATER LINE SHUTOFF VALVES WE W0 ...
Страница 1202: ...Section 22 HEATING AND AIR CONDITIONING PA1553 56 FIGURE 65 SMALL HEATING SYSTEM COMPONENTS 22337 ...
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Страница 1209: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R ...
Страница 1210: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT ...
Страница 1233: ...Compressor 62 11053 Rev B SERVICE PARTS LIST for MODEL 05G TWIN PORT COMPRESSOR 1 2 3 4 5 6 R ...
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Страница 1287: ...Section 24 LUBRICATION PA1553 5 FIGURE 2 LUBRICATION AND SERVICING POINTS ON INDEPENDENT FRONT SUSPENSION VEHICLES 24036 ...
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Страница 1305: ...Section 26 XLII SLIDE OUT PA1553 11 ...
Страница 1306: ...Section 26 XLII SLIDE OUT PA1553 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION ...