VOKERA Compact 24 Installation & Servicing Instructions Manual - page 21
19
Compact
Fig. 19
Fig. 20
6.8
AUTOMATIC AIR RELEASE VALVE (AAV, fig.
17)
Carry out component removal procedure as de-
scribed in 6.5.
Remove the locking pins at the pump outlet, and
the flow & return connection of the heat ex-
changer, disconnect both pipes from the heat
exchanger, and remove the return pipe from the
pump outlet. Remove the locking pin and expan-
sion pipe from the pump base. Using a suitable
pair of pliers, unscrew the AAV from the pump
base. Replace in the reverse order.
6.9
WATER PRESSURE SWITCH fig. 18
Carry out component removal procedure as de-
scribed in 6.5.
Remove locking pin from heating flow pipe at the
heating manifold and withdraw the pipe from the
manifold. Remove locking pin and the water
pressure switch from the heating manifold, pull
back protective cover – and after taking note of
the electrical connections – disconnect the wir-
ing. Replace in the reverse order.
6.10
DOMESTIC WATER FLOW SWITCH fig. 19
Carry out component removal procedure as de-
scribed in 6.5.
Remove black electrical plug from the domestic
water flow switch, disconnect and remove inlet
pipe between the domestic water flow switch and
the heat exchanger, remove locking pin from the
domestic water flow switch, the switch can now
be removed from the appliance. Replace in the
reverse order.
Fig. 17
AAV
Fig. 18
WATER PRESSURE
SWITCH
6.11
PRESSURE GAUGE (fig. 1)
Carry out component removal procedure as de-
scribed in 6.5.
Remove pressure gauge locking pin, located on
pump base, and withdraw the pressure gauge
pipe, locate the spring tabs on the pressure
gauge body, push and hold tabs in, to enable
extraction of the gauge from its location. Replace
in the reverse order.
6.12
PRIMARY AND SECONDARY THERMISTORS
(fig. 20-21)
Carry out component removal procedure as de-
scribed in 6.5.
Pull back protective rubber cover from the ther-
mistor, disconnect thermistor electrical plug, us-
ing a 13 mm spanner slacken and remove the
thermistor and sealing washer. Replace in the
reverse order.
6.13
HIGH LIMIT THERMOSTAT fig. 20
Carry out component removal procedure as de-
scribed in 6.5.
Pull off electrical plug from the high limit thermo-
stat, slacken and remove retaining screws.
Replace in reverse order.
primary thermistor
high limit thermostat
Fig. 21
secondary thermistor