Graco E-flo iQ 26B543, Installation-Parts

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Repair
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Replace Heat Control Box Electrical Component(s)
Replace Auto Multi-Zone (AMZ) Fuse(s)
1. Turn the Disconnect Switch (AZ) OFF.
2. Remove the door (350) on the Heat Control Box
(AX).
3. Use a non-conductive fuse puller tool to remove the
blown fuse.
NOTE: Fuses FHA and FHB are not replaceable. If FHA
or FHB fuses are blown, order AMZ Replacement Kit,
25R533.
4. Install a new fuse into the empty fuse holder.
5. Install the Heat Control Box door (350).
Replace Auto Multi-Zone (AMZ)
1. Turn the Disconnect Switch (AZ) OFF.
2. Loosen screws and remove the door (350) on the
Heat Control Box (AX).
3. Remove the AMZ:
a. Disconnect the heated electrical connections
from the back of the AMZ.
b. Disconnect the cables from the AMZ on the
inside of the Heat Control Box (AX).
DANGER
SEVERE ELECTRIC SHOCK HAZARD
This equipment can be powered by more than 240 V.
Contact with this voltage will cause death or serious
injury.
• Turn the Power Junction Box Switch (AK) and the
Disconnect Switch (AZ) OFF before disconnecting
any cables and before servicing equipment.
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NOTICE
To prevent system damage, always use fast acting
fuses. Fast acting fuses are required for short-circuit
protection.
Fuse Part Identification
F1A-F4B 129346 250VAC, 12.5A, fast acting
FHA-FHB - - - - - 250VAC, 25A
NOTICE
Using an improper tool, such as a screwdriver or pli
-
ers may break the fuse or cause damage to board.
F
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350
333
AX
AMZ