Bosch IDS 2.0 Service Manual page 30

3 0 | Bosch IDS 2.0
No. in diagram Abbreviation
A INV Comp.
B T5
C HPS
D RV
E Fan
F T3
G T4
H EEV
I CV
J PT
K Tf
L Th
M T3L
N PEV
O TXV
P Bi-Flow Filter Drier
Table 19
Data subject to change
Part Description
Inverter Compressor
Compressor discharge
temperature sensor
High Pressure Switch
Reversing Valve
Outdoor Fan
Outdoor Coil temperature sensor
Outdoor Ambient Temperature sensor
Electronic Expansion Valve
Check Valve
Pressure Transducer
Control board heat dissipation
temperature sensor
Compressor Suction temperature sensor
Liquid Line temperature sensor
Pressure Equalizer Valve
Thermal Expansion Valve
Bi-Flow Filter Drier
Major functions
The inverter compressor's speed is controlled based on coil pressures monitored by the
unit's pressure transducer (PT)
Used for compressor discharge temperature protection and EEV control in heating mode.
—
High Pressure Switch opens at P > 580 PSIG, the compressor and outdoor fan
stop.
—
High Pressure Switch closes at P < 435 PSIG, the compressor and outdoor fan
restart.
Used to switch mode between cooling and heating.
Used for heat exchange
—
Used for discharge temperature protection
—
Fan control (cooling mode)
—
Defrost control (heating mode)
Used for ambient protection and fan control in heating mode, and defrost control.
Fully open during cooling mode and adjusted during heating mode. Controlled in heating
mode via compressor discharge superheat.
Open during cooling and closed during heating.
—
Compressor frequency control
—
Electronic Expansion Valve (EEV) control (heating mode only)
—
High pressure protection (heating mode)
—
Low pressure protection (cooling mode)
Used for control board heat dissipation temperature protection.
Used to monitor suction temperature
Used to monitor condenser outlet temperature
Used to balance pressure before compressor starts
Used only in cooling mode to control superheat and protect compressor
Used to remove refrigerant impurities in order to protect compressor
Service Manual
07.2021 | Bosch Thermotechnology Corp.