Hearth Products Controls Co.
EI Pilot Assembly Replacement
Page
2
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Rev. 1
06232020
Installing new pilot assembly:
7) Connecting pilot tube to valve box.
a. Ensure correct configuration of the ferrules.
(Fig. 2)
b. Insert tube into coupler until it stops. (Fig. 1)
c.
Hand tighten compression nut onto pilot tube
coupler.
d. Tighten the compression fitting using a 9/16
”
wrench 1 ¼ turns.
a
As a guide make a mark on the compression
nut to help assist the amount of rotations.
(Fig. 2)
e. Pull and twist pilot tube to ensure that tube is tight.
8) Connect the thermocouple to the fitting.
a. Tighten to snug
using a 3/8” wrench.
a
Over tightening will damage the connection.
Hand tighten then using a 3/8” wrench
tighten 2 flats on nut or until snug fit
b
Do not spin fitting as this may cause the
contacts to touch on the inside of the box.
9) Connect the Molex igniter wires.
a. Connect Molex until it snaps in place.
b. Push in the lock.
10) Turn on power and fuel.
Caution:
11) Thoroughly check connections for leaks with leak
detector.
12) No thread sealer is required for installation.
White Clip
3
4
5
Ferrules
Molex Plug
Compression nut
Mark for guide
