Bosch HP270-2 - Compressor Components Overview

Page 16 from 56 6-720-821-364 SM HP270 – 250 - 200 2016/12 en
Between C – R > 0
Highly ≈ 5.84 Ω
Between C – S > 0
Highly ≈ 7.62 Ω
Between R – S > 12 Ω
(values @ 20ºC)
Checking Continuity and Resistance (Ω):
Check earth connection
C – chassis ≠ 0
S – chassis ≠ 0
R – chassis ≠ 0
Attention: In case of
continuity the compressor
is defected
Electric test to compressor:
Thermal Protection
This function is ensured by
a bimetallic temperature
limiter which opens its
contact when high
temperature (T=160ºC
±10ºC) is reached during
operation.
Testing of thermal protection limiter:
Open contact Close contact
temperature activation – T≥160ºC normal operation – T<70ºC
Table 4 – Compressor components overview