
1041896, R
EV
. 00
P
AGE
16 - M600/M605 R
EPAIR
& R
EPLACEMENT
M
ILLENNIUM
S
ERVICE
& T
ECHNICAL
I
NFORMATION
6. While holding the wiring harness out of the way, remove the OPI board from the Front Cabinet.
F
IGURE
Q: R
EMOVING
THE
OPI B
OARD
To install the OPI Board
1. Align the holes in the OPI board with the standoffs on the Front Cabinet.
2. Insert then tighten the four screws provided to secure the OPI board to the Front Cabinet.
3. While holding the oxygen sensor, install the pressure tubing on the oxygen sensor by carefully
pushing the tubing onto the oxygen sensor fittings.
4. Align the connector on the OPI wiring harness with the J7 receptacle on the OPI board. carefully
press the connector onto the receptacle until completely seated.
NOTE
Once the unit is reassembled, verify that there are no O
2
leaks. Set the Flow Meter to 0 lpm. Ensure
the “no flow” alert activates. The alert should activate. If not, check for leaks at newly installed OPI
board.