Electric Connections Overview - Bosch HP270-2 Technical Manual

Solenoid valve
(use of multimeter:
AC voltage
measurement and
measurement of
coil resistance)
Note: only models
with gas defrost -
10ºC / +35ºC
AC Water Pump
(use of multimeter:
AC voltage
measurement and
Ohm
measurement)
DC water pump
Note:
Only HP270-3
Page 18 from 56
230 V ac between L / N
230 V ac between L / N
Input: 8 – 24 V dc
Table 5 – Electric connections overview
6-720-821-364 SM HP270 – 250 - 200 2016/12 en
Coil: 2.2 kΩ
Internal Resistance:
Speed 1 - 600 Ω
Speed 2 - 452 Ω
Speed 3 - 305 Ω
Variable Speed (PWM signal)
Input (V dc): brown
Ground: white
Feedback of speed (Hz): yellow
PWM signal: Green