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1. We JJ Page 18 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C SUSPENSION ACCUAIR E4 SUSPENSION TOP VIEW Drill Size 5 32 0 59 En o Se LN o So SwitchSpeed Mounting Template NO NV 1 45 Bottom Side with USB Connector Page 20 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C
2. ECU Mounting ECU Mounting Considerations e The ECU is 100 weather proof and can be mounted under vehicle next to the valves e The ECU can be mounted upright or on its back as seen below If back mounted back tabs must be removed The following diagrams illustrate both Standard and Optional mounting configurations Bottom Mounting Standard Back Mounting Optional See ECU Mounting Template See ECU Mounting Template on page 16 on page 18 Step by Step 1 Find a flat location near the VU4 Valve Unit to mount the ECU 2 Plug In the Valve Harness while finding the mounting position to make sure that it reaches 3 Transfer hole pattern from the ECU Mounting Template on pages 16 amp 18 4 Drill holes with a 3 16 drill bit and bolt the ECU down with the included 10 32 Allen head cap screws For optional mounting remove back tabs with diagonal cutters and a file Page 8 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUAIR E4 SUSPENSION Pressure Sensor Mounting Tank Pressure Sensor Mounting Considerations Mount the Pressure Sensor vertically with the threads aiming downward to avoid moisture build up in the sensor e Mount the Sensor close to the ECU to connect the pre terminated sensor harness that is part of the Main ECU Harness _ Air Tank Step By Step 1 Coat the threads of the Sensor and any threaded fittin
3. ACCUA E4 SUSPENSION Install Wiring Harnesses Wiring Harness Installation Considerations e The plugs that connect to the ECU will only fit in the desired orientation Do not force the connectors into the wrong mating connector Make sure to press all connectors on firmly until an audible click sound can be heard from the lock Route all wiring away from exhaust or other hi temp areas e Use Rubber Grommets for areas where sharp metal could eventually wear through the wire insulation See System Diagram on pages 4 5 Step By Step eECU Main Harness 1 First connect the Main Harness at the ECU then route each section to each component on the vehicle 2 Route the SwitchSpeed harness Mini USB Cable to the inside of the vehicle and leave until later in installation Route the single purple wire labeled HEADLIGHTS to a 12V source in the vehicle Headlight Switch Check the manufacturer s specs for a 12V Headlight source inside the vehicle You can also use a 12V wire from the closest marker light instead of running it to the Head light Switch inside the vehicle This will allow the SwitchSpeed Controller s backlighting to dim automatically when the headlights are on 3 Route the single orange wire labeled IGN_12V to an ignition source 4 Route the 3 wire Tank Pressure Sensor sub harness green red and black wires labeled P_SENS to the sensor 5 Route the single yellow wire labe
4. provided by other manufacturers for use with or around the ACCUAIR system For components other than ACCUAIR s follow the manufacturer s instructions for installation and operation Page3 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C 9 777 swiayshg 0NU09 JIVNIDY 6003 O Z LA lenueyy JejjoJuo2 peedsyoums OT swiayshg 0NU09 AYNIIY 600Z O Z LA IenueN J llo quoO y peedsuo ws o6eg y abe enjg eiuM L UMOG 8 UMOJE 9YUM Z UMOG 7 USSID SHUM E UMOG 9 Ke 9 enyM Y umoq S UM L dn y ejding eiuM a dn e abueio ewuM dn iz xoejg eiuM y dn 1 4ossoidwiog elos E SOA BA SHAW 1940 Buisn usum Aejay esny Aejoy s 4ossaidwi0y Josseiduio dwy 24 I Azt Liva esna nod dwy gt La HEADLIGHTS Hea Az esny duvoz ulen IGN 12V JS JONUOS w psedsyoums NOISNIdSNS NOISNIdSNS ES nosv ES nosv ACCUAIR E4 SUSPENSION Installation Overview After your Air Springs and Suspension Components have been installed you can begin installing the AccuAir components in the following order Install VU4 Valve Unit Install ECU Electronic Control Unit Install SwitchSpeed Controller Install Tank Pressure Sensor Optional Install Air Compressor s Install Wiring Harnesses Test Wiring and Mechanical Components DO O O Page6 SwitchSpeed
5. time to do some mechanical system checking Look for mechanical interference throughout the E range of travel for the Air Springs and all moving suspension components Test for air leaks at all fittings and pipe threaded joints using a soapy spray bottle To fix any air leaks first lower the Air Springs then turn the Ignition OFF and depressurize the Air Storage Tank s Page13 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUAIR E4 SUSPENSION Mounting Templates No 4 m Un pe ar 16 8748 a gt Ni VU4 Valve Unit Mounting Template _ Q 0 gt S D pah J lt 3 Cd __ O Q A Page 14 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C SUSPENSION ACCU r Eq SUSPENSION Drill Size 13 64 2 27 or 6 7 8 Bottom ECU Mounting Template Standard 2 68 Minimum leave clear space for connectors 6 93 le Page 16 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C SUSPENSION ACCUA E4 SUSPENSION E 1 01 pa gt Coe PN Drill Size 13 64 or 6 7 8 Rear ECU Mounting Template Optional y 6 53 EN AGELTAIE YM CE sp 2 An
6. ACCU ba SUSPENSION Installation Manual SwitchSpeed Controller Congratulations Thank you for purchasing the revolutionary SwitchSpeed Controller by AccuAir This air suspension controller manages up to 4 Air Springs as an intelligent switchbox with user adjustable control of valve speed The AccuAir SwitchSpeed also manages your Air Compressor s to keep onboard air at an ideal pressure for your application If Optional Electronic Tank Pressure Sensor is connected To maximize functionality the AccuAir SwitchSpeed allows you to select from three distinct valve speeds 1 Full Speed 2 Medium Speed Adjustable 3 Precision Speed Adjustable The exact settings for each of these speeds is User Adjustable see page 10 in your Operation Manual At AccuAir we pride ourselves on thorough customer service quality products and a better driving experience through technologically superior design Please visit our website or call us toll free to let us Know if there is any way that we can help improve your AccuAir experience 877 AIR DOWN 247 36 96 ACCUAIR E4 SUSPENSION Table Of Contents Description Page Number Terms amp Conditions Installation Overview Mounting amp Wiring Instructions 7 12 Testing Mechanical amp Electr Mounting Templates ACCUAIR E4 SUSPENSION Terms amp Conditions AccuAir Control Systems L L C is hereby referred to as ACCUAIR The Pur
7. Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUA E4 SUSPENSION VU4 Valve Unit Mounting Valve Mounting Considerations e These valves are 10096 weather proof and can be mounted under vehicle e 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 flat 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 with the included star washer 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 Ground Eyelet Installation Wire Color Description When using other MFG s valves 1 Up 4 White Black 2 Up 3 White Orange 3 Up 2 White Purple 4 Up1 White 5 Down 4 White Gray 6 Down 3 White Green 7 Down 2 White Brown 8 Down 1 White Blue Page 7 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUA E4 SUSPENSION
8. chaser end user or installer is hereby referred to as CUSTOMER Warranty ACCUAIR will repair or replace any failed components for the life of the vehicle given that the components were installed and operated as intended by ACCUAIR Upon the return of a failed component s ACCUAIR will determine the cause of failure If it is due to improper installation or misuse of the system a repair charge will be assessed and the customer will be contacted before work is performed or replacement parts are shipped If the failure is due to faulty parts then ACCUAIR will repair or replace the failed components at their own discretion and in a timely manner Repairs and Returns A Return Merchandise Authorization Number RMA is reguired for ALL ship ments to AccuAir Control Systems This number should be written in large letters on the shipping box Call AccuAir to receive an RMA number and send items to AccuAir Control Systems L L C Attn Service Department RMA 1241 Johnson Ave 355 San Luis Obispo Ca 93401 USA Legal Disclaimer eACCUAIR s products must be installed by a gualified professional installation facility as recommended by ACCUAIR eSystem operation and installation is at the CUSTOMER s own risk ACCUAIR accepts no liability for damage of property or persons caused by its products components accessories installation instructions or otherwise eACCUAIR accepts no responsibility for systems products or components
9. g or adapter used in the air supply system with a thread sealer to help prevent air leaks We recommend a liquid thread sealer for best results but Teflon tape will work also We strongly recommend an Anaerobic Thread Sealer such as Loctite s P N 565 2 After tightening the sensor wipe off the excess thread sealer Page 9 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUAIR E4 SUSPENSION Installing amp Wiring Air Compressorfs Air Compressor s Mounting Considerations e There should be a fuse in between the Compressor s and the battery e The Compressor s get very HOT during operation Make sure to leave space between items that are susceptible to heat Wires Nylon Air Line etc Step By Step 1 Find a location for the Compressor s to be mounted with good air circulation 2 Transfer the hole pattern of the Compressor using the Air Compressor as your template 3 Drill holes and bolt the Air Compressor s down 4 Install the Power Wire to the vehicle battery 12v with an inline fuse 30amps per Compressor that is included with your Compressor s near the vehicle battery 12v 5 Install the Compressor Relay inline with the Compressor s power line 6 Install the Ground Wire to vehicle chassis ground Make sure to remove any rust or paint to ensure a thorough ground Page 10 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C
10. led COMP_1 to trigger the Compressor Relay s 6 Route the single red wire labeled BATT_12V with a 15 Amp fuse to the vehicle battery 7 Mount the single black wire labeled EC_GND with the VU4 ground Page 11 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUAIR E4 SUSPENSION SwitchSpeed Controller Mounting SwitchSpeed Controller Mounting Choose a mounting location that will allow the driver to operate and view the SwitchSpeed Controller from the driver s seat Once your target mounting position has been found use the template to drill mounting holes NOTE See Mounting Template on page 20 Page 12 SwitchSpeed Controller Manual V1 2 2009 AccuAir Control Systems L L C ACCUA E4 SUSPENSION Testing Wiring amp Mechanical Components Now your system components are installed plumbed and wired Mechanical Air Suspension Components Compressor s Tank s Tank Pressure Sensor Valves Air Line ECU and SwitchSpeed M Controller it is time to test the system To Begin Testing The System Turn the vehicle Ignition ON or start the vehicle You will need to be charging your electrical system either by running the vehicle or by using a high amperage battery charger SwircH SPEED wAGCUAIR As you consume air pressure by raising the vehicle the Air Compressor s will automatically turn ON when necessary This is a good
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