L.B. White Pilot - Manual (Page 69)

High-Limit Switch Replacement
Servicing
Instructions
12”
Formed Tabs Spacer
8.7-2 2
August 1999
Specifically relating to the AB200 heater, the high limit is a
capillary and switch mounted to a bracket near the burner.
If switch replacement is necessary you will need to route the
capillary behind the burner, and then across the heat
chamber face, allowing 12 inches of capillary to be in
contact with the heat chamber. The capillary is held in
position by tabs that are formed from the heat chamber.
Insure you have also installed the spacer clips on the
capillary to prevent premature high limit tripping.
ATTENTION
■ Four spacer clips are required per switch (spacer
part #130-09051).
■ Install and position the spacers as illustrated.
■ Do not kink the capillary tube, or pinch it between
the formed tabs and the heat chamber by using
unnecessary force. Capillary damage with
subsequent switch failure will occur.
Capillary R Routed
Over S Spacer
High LLimit S Switch
Dashed LLine
Indicates
Capillary R Routing
Behind B Burner
Capillary B Beneath
Spacer