Technical information

Control Overview—Burner Power Wiring

Connection of Boiler Power Wiring to Burner

Applicable for both Vitotronic 100, GC1 and 300, GW2

Flexible Conduit

Soft cable

Soft Cable 120VAC, 1PH Supply

Flexible Conduit 120VAC, 1PH Supply

1 Incoming burner motor power

supply 120VAC, 1PH.

Ensure polarity of L/G/N is not

reversed.

2 Connect 120VAC supply to

terminals 21, 22 and 23 on the

DIN rail inside of boiler control

harness. Provide fuseable

disconnect according to local

codes.

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.

CAUTION

Refer to burner manual for correct

fuse and wire gauge sizing with

respect to burner electrical

requirements.

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