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AccuAir SwitchSpeed - VU4 (Valve Unit) Mounting; Valve Unit Mounting Considerations; VU4 Mounting Step-by-Step; Ground Eyelet Installation

AccuAir SwitchSpeed
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VU4 (Valve Unit) Mounting:
Valve Mounting Considerations
These valves are 100% weather-proof and can be mounted under vehicle.
You will need to mount the ECU near the valves, so make sure that there is
enough space for both items.
Step-by-Step
1.) Find a at location to mount the VU4. This should allow enough room for
the airlines to be inserted without too much bending.
2.) Transfer hole pattern from the VU4 Mounting Template on page 14.
3.) Drill holes with a 3/16” drill bit and bolt the VU4 down with the included #10-24
Allen head cap-screws.
4.) Place the ground eyelet from the VU4 wiring harness under one of the
cap-screws and make sure that this screw has good contact to chassis ground.
(Remove paint or coatings to expose bare metal)
5.) You may use this same location to place the ECU ground, so do not tighten
yet.
V_GND
Ground Eyelet Installation Wire Color Description
1.) Up 4 White/Black
2.) Up 3 White/Orange
3.) Up 2 White/Purple
4.) Up 1 White
5.) Down 4 White/Gray
6.) Down 3 White/Green
7.) Down 2 White/Brown
8.) Down 1 White/Blue
When using other
MFG’s valves:
1 2 3 4
5 6 7 8

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