Technical information

Control Overview—Burner Power Wiring

Connection of Boiler Power Wiring to Burner (hardwired connection)

Applicable for both Vitotronic 100, GC1 and 300, GW2

Flexible Conduit 208/460/575VAC, 3PH Supply

CAUTION

Refer to burner manual for correct

fuse and wire gauge sizing with

respect to burner electrical

requirements.

1 Incoming burner motor power

supply 208/460/575VAC, 3PH.

2 Connect 208/460/575VAC,

3PH power to terminals 21, 22

and 23 on DIN rail inside of

burner harness connection

enclosure.

3 DIN rail mounted female socket

inside boiler control junction

enclosure used for wiring burner

power.

4 Corresponding plug for burner

wiring is pre-wired for

termination in the burner and

plugs into receptacle mounted

on DIN rail. Refer to burner

manual for correct termination

inside of burner.

5 Burner contains motor starter

and blower motor.

Flexible Conduit

CAUTION

During start-up, check for correct

motor rotation. If motor rotates in the

opposite direction than indicated on

the burner, disconnect power supply

and reverse wires BK1 and BK2 on

the burner terminals.

Ensure work is carried out by only

qualified personnel.

Section 3.4

Section 3

Connection Overview

CAUTION

Provide disconnect means and over

current protection as required by local

codes

5346540 v1.0 09/2006 Technical information subject to change without notice