Eco Heating Systems CB 105 HW, Installation, Service And User Manual

Page: 66 / 147

E93.1803.901 HW 67
12 ELECTRICAL INSTALLATION
12.1 General
•
For operation, the water heater needs a power supply of 230 VAC/ 50Hz.
•
The wiring for the connections can be entered at the bottom of the water heater through the cable glands.
•
NOTICE: Before starting to work on the water heater, it must be switched off and the power supply to the
water heater must be disconnected.
•
Electrical wiring should be installed according to all applicable standards and regulations.
•
Wiring the water heater should only be done by a qualified
installer or licensed electrician where required
that is skilled in working on electrical installations and according to all applicable standards.
•
It is not allowed to change the internal wiring fitted by the manufacturer.
•
A spare fuse is mounted on the casing of the burner controller.
12.2 Connection mains supply
•
It is advised to use a flexible cable between the cabinet entry (at the bottom) and the connection terminal.
•
The earth wire has to be longer than the phase and neutral wire.
•
The power supply cable must be secured by tightening the cable gland at the bottom of the water heater
casing.
•
In case of a flexible cable: use crimp ferrules on each wire end for the terminal connections.
•
On the mains voltage terminal, connect to numbers: 8 = Phase ; 9 = Neutral; PE = Earth.
12.3 Electrical connections
High power ignitor
A separate connector for an external igniter is located on the cable tree, near the
water heater controller and labelled "High power ignitor".
The "external ignition transformer" can be ordered, see § 5.1 "Accessories".
This accessory is provided with detailed mounting instructions.
LOW VOLTAGE CONNECTIONS
MAINS VOLTAGE CONNECTIONS
DO
NOT
USE
NE PAS
UTI-
LISER
Pump
control
PWM
Commande
de pompe
PWM