Delta Controls HTP Installation, Operation And Maintenance Manual page 11

Note that the thermocouple is heavy
and the ceramic element well may be
easily broken. During the following
steps, do not allow any sideways
forces to be exerted on the ceramic
parts.
7.
Carefully remove the protective pipe from the thermocouple
and place it in a safe location.
Steel Protective (Shipping)
Pipe
9.
The soft compressible nozzle rings will compress as the
thermocouple is positioned into place.
Compressible
Nozzle Rings
8.
Have an assistant lift the thermocouple and turn it to a vertical
position. The installer then grasps the unit by the top housing,
permitting the unit to hang vertically plumb. With no assistance,
center the element well over the center hole in the top insulating
ring and gently lower the unit into place on the flange.
Gasket
10
.
Keeping the unit centered on the flange, gently rotate it to the
desired position for electrical and purge connections. Install and
tighten the flange studs.
Page 11