9
9
10 11
5x
3 4
1 2
5
230 V~
12 V=
8
VentingElectrical connection
For pumps with control module:
The BWO 155 Z pump will run continuously.
The BWO 155 ERT pump will run when the preset water
temperature is exceeded.
Warning! Hot surface on pump housing and
motor. Danger of burns!
► Avoid direct contact with pump housing and
motor.
► Ensure that the return line is air-free (see p. 6).
Then act as follows to bleed the pump until it runs noise-
free (alternately):
► Switch the pump on and off several times (see g. 2).
► Open a hot water tap several times (see g. 3).