Graco E-Flo Installation Manual page 59

b. Disconnect the cables from the AMZ on the
inside of the Heat Control Box (AX).
c. Remove the four screws (333) used to mount
the AMZ to the back of the Heat Control Box
(AX) and remove the AMZ.
4. Insert the new AMZ:
a. Set the AMZ dial position number 1 on the dial
for single ram systems.
b. Set AMZ dial to position number 2 for ram 2 for
a tandem system. NOTE: Ram 2 does not
include an ADM. .
F . 59: AMZ Dial Position
IG
c. Mount the AMZ to the back of the Heat Control
Box (AX) using the four screws (333) removed
from the original AMZ.
d. Reconnect the cables on the inside of the Heat
Control Box (AX) to the AMZ.
e. Reconnect the heated electrical connections to
the back of the AMZ.
5. Replace the Heat Control Box door (350).
333586E
Replace Advanced Display Module (ADM)
The ADM stores useful lifetime and diagnostic data
that will be lost when it is replaced. To keep this data,
perform a USB download prior to replacing the ADM.
1. Turn the Heat Control Box Disconnect Switch (AZ)
OFF.
2. Disconnect the cable from the bottom of the ADM
(AF).
3. Remove the ADM (AF) from the bracket (114). See
Parts on page 61.
4. Install the new ADM (AF) into the bracket (114).
5. Connect the cable to the bottom of the new ADM
(AF).
Replace Power Supply
NOTE: Instructions for replacing the power supply
applies to heated systems only.
1. Turn the Heat Control Box Disconnect Switch (AZ)
OFF.
2. Loosen the screws and remove the door (350) on
the Heat Control Box (AX).
3. Disconnect the power supply harness from the AMZ
(headers J3 and J21).
4. Remove the power supply (338) from the din rail in
the Heat Control Box (AX).
5. Disconnect the power supply harness from the
power supply.
6. Mount the new power supply to the din rail in the
Heat Control Box (AX).
7. Connect the power supply harness to the AMZ
(headers J3 and J21).
8. Close the Heat Control Box door (350).
NOTICE
Repair
59