Electrical Connections - Baxi PRIME 26 Betriebsanleitung Für Den Installateur

6.6

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, use a harmonised "HAR H05 W-F" 3x0.75mm
Make sure that the overall rated power input of the accessories connected to the appliance is less than 1A. If it is higher, install
a relay between the accessories and the electronic board.
6.6.1 Access to the electrical connections
To make the electrical connections, access is required to the connection board
located under the control panel. Loosen the two screws in the lower part of the
boiler and remove the terminal block cover (1). Connect the power supply to
the terminal block X1 of the connection board (B) as instructed in the figure
and in section 3.4 and on the label on the inside of the cover.
X1 230V–50Hz power supply
1:
Earth connector
2: L (230 V)
3: N
X6: Not used
X7: PRIME 26-30: Solar sensor connection (TS)
PRIME 1.24: DHW tank connection probe (TS)
X8: On-Off / R-Bus - Room Thermostat Connection
(remove the jumper before connect a device)
X9: Service Connection (SERVICE)
X13: L-BUS connection
X14: External sensor connection (OS)
J Dip-Switch
1: Maximum heating temperature:
OFF = 80°C - ON = 45°C (floor system)
2: OFF = Maximum power (heating)
ON = 50 % boiler power (heating)
3: OFF = Methane (G20)
ON = Propane (G31) - Butane (G30)
On
L-Bus
On/Off
Off
3 2 1
Tout Tdhw
R-Bus
SERVICE
721470302
X9 X13 J X8 X14 X7
On
3 2 1
L- BUS On/Off OS
R-Bus
SERVICE
At each change of position of a Dip-Switch, the display shows an error requiring a RESET.
7696306 (01-12/17)
POWER
C N L
X6 X1
N L
230V - 50Hz
TS
BO-0000022
cable with a maximum diameter of 8 mm.
2
2
1
28
F1
L
N
A
X1
N L
B
230V - 50Hz
BO-0000021