Wren Turbines Xicoy AU-107K ECU Quick Start Manual Download Page 1 | Manualshive

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Kerostart supplement

for Wren 44 Gold Thrust,

Turboprop and Heli engines

Feb 2012

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Summary of Contents for Xicoy AU-107K ECU

Page 1: ...Kerostart supplement for Wren 44 Gold Thrust Turboprop and Heli engines Feb 2012 ...

Page 2: ...first if your engine is an earlier model Fitting a kero start system will not cure a poorly starting engine so be sure your engine is in good working order before fitting If you are unsure of the suitability of your engine please contact Wren Turbines Ltd All Wren 44 Turboprops and 44 Heli s are based on the 10Lb thrust Gold engine so if you have one of these this system will be suitable The syste...

Page 3: ...arefully controlled Starter Power at Ignition and RPM Ignition Kero This stage is called Ignition In the ECU the amount of fuel fed to the burner is controlled by the function Pump Power Ignition Kero in the START menu and the engine speed after the burner has ignited is controlled by RPM Ignition Kero Once the ECU has seen enough temperature rise from the small flame it will begin pulsing the mai...

Page 4: ... 3 Xicoy Fadec Au 107K ECU Valve Valve Pump 7 4V 2cell LiPo Throttle signal Starter motor Fuel Igniter Fuel tank Receiver BATTERY PUMP GAS VALVE KERO VALVE GLOW STARTER Data Terminal RPM sensor Temp sensor RPM TEMP Throttle In Igniter Plug Connection Schematic for Fadec Xicoy AU 107K ECU ...

Page 5: ...on the fuel pump ECU and valves Place valves as close to engine as possible Screw burner onto engine plughole using earth terminal above the banjo fitting Rotate the burner feed into the direction to suit your install before tightening Fit plug cap to burner nipple Push on ptfe 3mm tube onto burner nipple and slide green gland nut over top and screw on firmly gently Connect inline 3mm fitting to e...

Page 6: ...ansmitter The setup assumes the use of a transmitter with manual trims Digital trims and Throttle Cut function If you have a transmitter with digital trims you can simulate the trim up down function using the Throttle Cut switch which is usually a function switched through a toggle switch mounted on the transmitter must not be spring loaded Consult your radio manual for this function Setting the E...

Page 7: ...e display will now change to Leaving the throttle stick in the minimum position raise the throttle trim to the max position or switch Engine Cut switch to off and again press the button The display should then show Lower trim to zero Now switch off the receiver Turn the receiver on again if you have done all the steps correctly the opening screen will show Trim Low and if you raise your trim to fu...

Page 8: ...tch fuel travel along from the tank to the engine Press Off to stop Go further down INFO menu to Prime Burner On Off Press On button and watch fuel travel to burner then press Off to stop Do not prime longer as you risk pouring fuel into the engine which will cause a flaming start Small bubbles in the pipes at this stage will not prevent a start just delay it Place the engine plane into a suitable...

Page 9: ...ine begins accelerating towards idle Screen shows Switchover then Fuel Ramp If engine stops at switchover increase pump start point until it continues Sometimes needs to be 50 or more If the engine slows down or makes smoke at switchover increase the value for min flow as the flow is not high enough to make a successful switchover At the end of switchover burner turns off at around 20 000rpm and f...

Page 10: ...oblems checksheet follows in the next couple of pages It lists common faults and the likely cures and hopefully will solve your problem quickly Please use the checksheet before calling us it is there to help you to save time trouble and expense If you find something not covered then of course mail us with a description and we will try to help you info wrenturbines co uk Please note we can only hel...

Page 11: ...om Problem Action No reading on ECU display unit RX not switched on or RX battery discharged Verify connection and charge if necessary Display not connected properly Ensure that display is plugged in the correct orientation Display malfunction Contact Wren ECU problem Contact Wren Transmitter stick down trim up reads StickLo Throttle channel needs reversing Reverse channel on Tx most Futaba s need...

Page 12: ...y disconnect run backwards to clear No drive from ECU Contact Wren No or little temp rise on ignition Insufficient burner fuel Increase Pump Power Ignition Kero Temp probe not inserted into exhaust cone Insert 6mm Pump runs but no fuel delivered Fuel not reaching tank pick up Check clunk for blockage Ensure fuel like is not kinked Pump fault Check solenoid operation burner solenoid not opening Che...

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