Technical information

Control Overview—Burner Control Wiring Diagnosis
Connection of Boiler Control Wiring to Burner (hard-wired connection)
Applicable for Vitotronic 100, GC1
Section 6.1
Section 6
Control Harness Conduit
• 120VAC on L of [40] plug.
• 120VAC through S1 switch.
• F2 fuse.
• [151] plug jumper.
• F6 Fixed high limit.
• [150] plug terminal jumper across
12 and 15 (LWCO connection).
• STB of 150 plug to L of [41]
plug.
• L of [41] plug powers flame safe
guard of burner.
• 120VAC returns back to control
on BK3.
• BK3 to T1 of [41] plug.
• TR adjustable high limit.
• K1 call-for-heat relay to TR/ON of
[150] plug.
• Jumper across 17 and 16 of
[150] plug.
• TR of [150] plug to T2 of [41]
plug.
• T2 of [41] plug to burner and call-
for-heat.
120VAC Path Overview
CAUTION
!
This is a generic drawing only! Follow
the burner manufacturer’s
interconnection drawings for
interfacing burner with Viessmann
controls.
5346540 v1.0 09/2006 Technical information subject to change without notice
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