AFR200 Series, Product User Guide
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Caution: None of GAC products are flight certified controls including this item
Copyright © 2010, Governors America Corp., All Rights Reserved
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PUG4144 D
6.3.2 Installation Instructions
The following information is divided between normally aspirated engines and turbo-charged applications due to
the differences in mounting locations.
6.3.2.1 Naturally Aspirated Engines
1. Clean the mounting area to the ATB from debris including old gaskets or previously applied sealants if
present.
2. Install the integral mixer / valve assembly on top of the ATB (with or without adapter plate) using the
supplied o-ring or an approved sealant.
•
Ensure the mixer assembly is aligned to the desired orientation prior to seating it on top of the ATB.
3. Insert the four bolts into the mixer / valve assembly, install the nuts, and torque them down to 1-1.8 lb.ft.
[1.36-2.44 N•m].
•
Ensure the assembly is not over-torqued and that the torque is applied evenly and gradually.
4. Connection of the fuel supply from the zero pressure gas regulator to the mixer / valve assembly is
covered in following sections.
6.3.2.2 Turbocharged Engines
1. Clean the mounting area to the flange of the turbocharger inlet (or adapter) as well as the air filter
connection from debris including old gaskets or previously applied sealants if present.
2. Install the integral fuel mixer/control valve assembly (with adapter plate) using the supplied o-ring or
approved sealant.
•
Ensure the mixer assembly is aligned to the desired orientation prior to seating it to the flange and
that the fuel inlet is horizontal.
3. Insert the four bolts into the mixer / valve assembly, install the nuts, and torque them down to 1-1.8 lb. ft.
[1.36-2.44 N•m].
•
Ensure the assembly is not over-torqued and that the torque is applied evenly and gradually.
4. Connection of the fuel supply from the zero pressure gas regulator to the mixer / valve assembly is
covered in following sections.
6.4 Gas Pressure Regulator (Zero Pressure)
A Zero Pressure Gas Regulator is attached to the fuel inlet port on the mixer / fuel control valve assembly to
regulate the pressure / flow to the assembly. The regulator has a reference / feedback port on top of the unit in
order to regulate pressure. A representation of a regulator connected to the mixer / control valve on top of an
ATB for a naturally aspirated engine is shown in the following figure.
