Electrical Connections; Connecting The Room Thermostat - DeDietrich MS 24 BIC FF Operating And Installation Instructions

17. ELECTRICAL CONNECTIONS

This machine is only electrically safe if it is correctly connected to an efficient earth system in compliance with current
safety regulations.
Connect the boiler to a 230V single-phase earthed power supply using the supplied three-pin cable, observing correct
LIVE-NEUTRAL polarity.
Use a double-pole switch with a contact separation of at least 3 mm. When replacing the power supply cable, fit a
harmonised HAR H05 VV-F' 3x0.75mm cable with a maximum diameter of 8 mm.
2
...Access to the power supply terminal block
• disconnect the boiler from the mains power supply using the two-pole switch;
• remove the two screws fixing the control panel to the boiler;
• rotate the control panel;
• remove the cover and access the wiring area (figure 9).
The 2A fast-blowing fuse is incorporated in the power supply terminal block (to check and/or replace the fuse, pull out
the black fuse carrier).
IMPORTANT:
respect polarity L (LIVE) -N (NEUTRAL).
(L) = Live (brown)
(N) = Neutral (blue)
= Earth (yellow-green)
(1) (2) = Contact for room thermostat
Figure 9

18. CONNECTING THE ROOM THERMOSTAT

• Access the power supply terminal block (figure 9) as described in the previous section;
• remove the jumper on terminals (1) and (2);
• thread the two-wire cable through the grommet and connect it to these two terminals.
INSTALLATION INSTRUCTIONS 71.06199.02 - EN
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