25
SST Extreme X & SST Extreme S MODULATING I&O Manual
RD: JAN 2021
RL: 1A
USE THE BLACK BARS BELOW AS A GUIDE FOR AD-
JUSTMENT. USE THE BARS THAT COINCIDE WITH
THE FORMAT & SIZE OF THIS PUBLICATION .
SPARK IGNITER SET UP
Use the following diagram to check the Igniter gap. If the gap is incorrect all adjustments should be made to the
GROUND PRONG/PIN ONLY! DO NOT BEND THE IGNITER PRONG!!!!
3/16”
1/4”
3/16”
1/4”
IF
this manual is in
8.5”
x
11”
“
booklet
”
format
(pages folded in half)
then use these bars
IF this manual is printed
8.5”
x
11” “
full page
”
format
use these bars
OR
AD-
SERVICE CHECKS
Flame current passes through the flame from
the sensor to ground. The minimum flame cur-
rent necessary to keep the system from lock-
out is 0.7 microamps. To measure flame cur-
rent, connect an analog DC microammeter to
the FC
-
FC+ terminals per figure at right.
Meter should read 0.7 µA or higher. If the me-
ter reads below
“0”
on scale, meter leads are
reversed. Disconnect power and reconnect
FC
-
FC+
Use Microamp
Multipurpose Meter
