17
Aircraft Configuration
Drawing #
Fuel injected engine without a fuel return line
from the fuel servo (most Lycomings).
1229932 or
1229931
Fuel injected engine with a fuel return line from
the fuel servo (most Continentals).
0415941
Carbureted engine with a fuel pump and no fuel
return line.
1229932 or
1229931
Carbureted engine with a fuel pump and a fuel
return line (requires an FFDM-1 Module).
1229932 or
1229931, and
1015941
Carbureted engine with a gravity feed fuel
system (requires an FT-90 Flow Transducer).
1229932 or
1229931
Fuel Flow Transducer Selection:
FT-60 (Red Cube):
For 0 to 350 HP
Engines.
FT-90 (Gold Cube):
For 350 to 550
HP Engines.
FT-180 (Black Cube)
: For 550+ HP
Engines.
(See the transducer specification for
pressure drops at a given flow rate.)
easily, it should be covered. When mounting the shunt, use self-locking or safety-wired nuts.
The signal wires from the shunt to the EDC must be fused a short distance after they leave the
shunt. If this is a new installation, install two in-line one-amp fuses, one in each of the signal lines
from the shunt to the EDC Amp Input.
Note:
Note:
Note:
Note:
Note: If you are replacing an existing ammeter, the shunt may already be mounted in the air-
craft. If you already have a shunt installed and know the value of the existing shunt, the CGR can
be calibrated to that shunt.
2.9 Install the Fuel Flow Transducer:
Mount the Fuel Flow Transducer using the appropriate drawing found on the following pages.
Note:
Note:
Note:
Note:
Note: If your engine is equipped with a pressure carburetor with a fuel return line from the carbu-
retor back to the fuel tank, you will need to install two flow transducers: one in the feed line from
Fuel Flow
Transducer
1/4" NPT
Note:
•
The direction of the flow of
fuel through the transducer
is marked on the trans-
ducer.
•
Mount the transducer with
the wires pointing up, or
the cap with five bolts
pointing up or the output
pointing up or any combi-
nation thereof.
End View
End View
End View
End View
End View
Side View
Side View
Side View
Side View
Side View
If the transducer is more than 4" per foot higher
than the carburetor or fuel servo port, put a loop
in the fuel line between the transducer and the
carburetor or fuel servo. This will allow bubbles
to vacate the Flow Transducer.
Fuel Flow Trans-
ducer
Carburetor or
Fuel Servo
OUT
