Westen star master 240 Fi, Instructions For The User And The Installer

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925.476.4 - EN INSTRUCTIONS PERTAINING TO THE INSTALLER
16. CONNECTING THE MAINS SUPPLY
Important
: if fitting a single exhaust flue duct, ensure it is adequately insulated (e.g.: with glass wool) wherever the duct
passes through building walls.
For detailed instructions concerning the installation of fittings refer to the technical data accompanying the fittings.
Electrical safety of the appliance is only guaranteed by correct grounding, in compliance with the applicable laws and
regulations.
Connect the boiler to a 230V mon ground power supply by means of the three-pin cable supplied with it and
make sure you connect polarities correctly.
Use a double-pole switch with a contact separation of at least 3mm in both poles .
In case you replace the power supply cable fit a HAR H05 VV-F’ 3x0.75mm
2
cable with an 8mm diameter max.
…Access to the power supply terminal block
• isolate the electrical supply to the boiler by the double-pole switch;
• unscrew the two screws securing the control board to the boiler;
• rotate the control board;
• unscrew the lid and gain access to the wiring (Figure 10).
The 2A fast-blowing fuses are in cor po rated in the power supply terminal block (to check or replace the fuses, pull out the
black fuse carrier).
Figure 10
0512_0508/CG1770
IMPORTANT: be sure to connect polarities cor-
rectly L (LIVE) - N (NEUTRAL).
(L) = Live (brown)
(N) =
Neutral
(blue)
= Ground (yellow/green)
(1) (2) =
Room thermostat terminal
CAUTION: If the appliance is directly connec-
ted to a underfloor system, the fitter must
install a safety thermostat to prevent it from
overheating.
17. FITTING A ROOM THERMOSTAT
To connect the room thermostat to the boiler terminal block, proceed as follows:
• reach the power supply terminal block (figure 10);
• connect the room thermostat to the terminals (1) - (2) and remove the jumper.