Electrical Connections; Connecting The Room Thermostat; Accessories Not Included In The Supply - Baxi ECO5 BLUE Operating And Installation Instructions

10. 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 W-F" 3x0.75mm
Access to the power supply terminal block
• remove the front panel of the boiler (secured at the bottom with two screws);
• turn the control box downwards;
• remove the metal guard from the control box;
• open the left-hand side of the cover and access the electrical connections area.
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).
The terminal block is at high voltage. Before making connections, make sure the appliance is disconnected from the power
supply.
Respect polarity L (LIVE) - N (NEUTRAL).
(L) = Live (brown)
(N) = Neutral (light blue).
= Earth (yellow-green).
(1) (2) = contact for Room Thermostat.

10.1 CONNECTING THE ROOM THERMOSTAT

To connect the Room Thermostat to the boiler, proceed as follows:
• access the power terminal block as described in the ELECTRICAL CONNECTIONS section;
• remove the jumper on terminals (1) and (2);
• thread the two-wire cable through the grommet and connect it to these two terminals.

10.2 ACCESSORIES NOT INCLUDED IN THE SUPPLY

10.2.1 CONNECTING THE EXTERNAL PROBE
To connect the External Probe, supplied as an accessory, to the boiler, proceed as follows:
• access the power terminal block as described in the ELECTRICAL CONNECTIONS section;
• for heating and DHW models: connect the external probe to the two RED wires fitted with faston covers;
• for heating only models: connect the external probe to the M2 terminal block, see the wiring diagrams in annex "SECTION" B
at the end of this manual;
• with the external probe connected, select the "kt" climate curve by pressing
see the curves chart in annex "SECTION" E at the end of this manual (the preset curve is 0).
KEY TO CURVE CHART Kt - "SECTION" E
Flow temp
7729106 (02-05/19)
Outside temp
28
cable with a maximum diameter of 8 mm.
2
, selecting from the available ones (0...90),