Installation, user and maintenance manual
– GAHP-A
53
the opening of the appliance's consent switch contacts, the circulation pump will thus
continue to circulate the water in the plant for a further 10 minutes, thereby ensuring the
complete dispersal of the heating energy produced.
When the pump is controlled by the appliance's controller, this delay is automati cally
applied by the board.
5.4
TYPE C (CONSENT SWITCH)
In this type of installation and control, the system pump does not vary the fl ow rate.
Before making the electrical connections, make sure that work is not carried out on live
elements.
General indications
•
Check that the power supply voltage is 230 V 1N - 50 Hz power.
•
Make the electrical connections as given in the following wiring diagrams.
•
Make the electrical connection in such a way that the ground wire is longer than
the live wires. In this way it will be the last wire to be pulled away if the mains cable
should accidentally be pulled, and will thus guarantee the ground connection.
The electrical safety of the appliance is guaranteed only when it is correctly connected
to an effi
cient grounding system, executed in accordance with current safety regulations.
Do not use gas pipes to ground electrical appliances.
How to connect the consent switch
You will need:
the appliance is electrically isolated (external master power switch set to
OFF)
1. Connect the consent switch (on-off switch or ambient thermostat or timer, etc.)
to terminals
R
and
W
on the appliance’s control circuit as shown in Figure 5.17
Electrical wiring diagram on page 53 (detail “CS”).
For the appliance to operate correctly, it is ALWAYS necessary to provide a consent switch.
Do not use the general mains external circuit breaker («GS») to switch the appliance on
or off .
Figure 5.17
– Electrical wiring diagram
electrical connections of ON/OFF command switch
LEGEND
SCH
Electronic
board
R
Common
W
Terminal consensus warming
Components NOT SUPPLIED
CS
ON/OFF command switch
