Bosch IDS 2.0 User Manual

Service Manual Bosch IDS 2.0 | 71
Bosch Thermotechnology Corp. | 07.2021
Data subject to change
13.8 Compressor
Figure 45
Resistance () 3T 5T
Between U and V <1.5 <1
Replace compressor
No
Power off and unplug
compressor wires, measure
resistances (see Table 1)
Yes
Yes
Are
resistances correct
according to Table 1? (Resistance
values can change +/-0.5 ohms
depending on equipment
& temperature)
Check superheat and
subcool. Correct refrigerant
charge according to IOM
No
Is the refrigerant
charge correct?
Yes
Replace compressor
Follow fault code specific
troubleshooting steps
Yes
No
Is there an active
fault code?
Does
compressor appear
to be running properly
(i.e. no abnormal
noise)?
Yes
No service required
No
Correct power supply/call
utility provider
No
Is the power supply
172V-270V?
Is there 24VAC
between Y&C on
control board
Fix thermostat
No
Yes
No
Replace control board
Yes
Is the voltage
between P-N
(CN3)< 310V DC?
Yes
Restart unit, give call for
heating/cooling, wait 5 mins
Between V and W <1.5 <1
Between W and U <1.5 <1
Between U/V/W and ground >10M >10M

Bosch IDS 2.0 Specifications

General

Refrigerant	R-410A
Stages	Variable
Voltage	208/230 V
System Type	Air Source Heat Pump
Compressor Type	Inverter-driven
Sound Level	As low as 56 dB
Heating Capacity	Varies by model
Cooling Capacity	Varies by model
Noise Level	45 dB to 60 dB
Operating Temperature Range (Heating)	-20°C to 35°C
Dimensions (Outdoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Seasonal Coefficient of Performance (SCOP)	Not Available