Connecting Electronically - Daikin Rotex GW-20 C22 Installation Instructions Manual

5.3

Connecting electronically

CAUTION
A socket with safety ground must be no further than 1 meter
from the unit.
The socket must be easily accessible.
When installing the unit in a damp space, a fixed connection is
obligatory, by means of an all-pole main switch with a
minimum contact gap of 3 mm.
If the mains cable is damaged or requires replacement for any
other reason, the replacement mains cable must be ordered
from the manufacturer or its representative. In case of any
doubt, contact the manufacturer or its representative.
1. Remove the plug from the socket, when working on the electrical circuit.
2. If there is a cover plate (A), remove it to the front.
3. Unscrew both screws (1) behind the display window.
4. Slide the bottom of the front panel (2) forwards, and remove it.
5. Pull the boiler controller forward. The boiler controller unit will tip downwards in the
process.
6. Consult par. 10.2 to make the connections.
7. After the required connections have been made, slide the boiler controller back into
the unit and return the cover plate, if you are using one.
8. After making the required connections, connect the unit to the socket with safety
ground.
5.3.1 Electrical connections
Temperature regulation
Room thermostat on/off
Modulating thermostat with
comfort function in use
Outdoor temperature
sensor
External energy-saving
switch
Frost thermostat
Connector X4 Comments
6 - 7 -
11 - 12
8 - 9 -
4 - 5 Set parameter c. to 0
Also see par. 7.2
6 - 7 Parallel over room thermostat
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