409
REVO-E Heat pump
4 Function and functional schematics
Task of the SC620:
–
Control the speed of the double radial blowers / axial
fans
–
Activation and speed setting of the compressor (via
frequency converter)
In Cooling mode Mode, the BEA body is not able to influ-
ence the speed of the double radial blowers.
The value of the interior temperature to be reached is
given by the difference of the external temperature and
the
∆
T required by the BEA body.
Example of
∆
T – 7 Kelvin
T
passenger cabin
= [T
external
(35°C) +
∆
T (7K)]
T
passenger cabin
= 28°C
This value is sent via CAN by the BEA body and is used
as an internal control signal.
The "D_ElAcMaxPowerAllowed" CAN signal (from the
vehicle's power system) specifies the maximum power
consumption of the compressor.
If the cooling requested cannot be implemented (e.g.
malfunction), the system automatically switches to
Heating/ Ventilation Mode.
Summary of Contents for REVO-E
Page 1: ...Rev 06 2019 Id No 11123006A REVO E Heat pump Volvo Workshop Manual AIR CONDITIONING...
Page 51: ...605 REVO E Heat pump 6 Wiring plan Fig 601 Wiring diagram for REVO E HP Sheet 4...
Page 52: ...606 REVO E Heat pump 6 Wiring plan Fig 601 Wiring diagram for REVO E HP Sheet 5...
Page 55: ...609 REVO E Heat pump 6 Wiring plan Fig 602 Wiring diagram for REVO E HP Sheet 1...
Page 56: ...610 REVO E Heat pump 6 Wiring plan Fig 602 Wiring diagram for REVO E HP Sheet 2...
Page 57: ...611 REVO E Heat pump 6 Wiring plan Fig 602 Wiring diagram for REVO E HP Sheet 3...
Page 59: ...613 REVO E Heat pump 6 Wiring plan Fig 602 Wiring diagram for REVO E HP Sheet 5...
Page 87: ...memos...
