Jets Munt Merlin M122NG Instruction Manual Download Page 1

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VT98NG - Merlin M122NG

Instruction Manual

(Version 1.5/2021)

Torrent d’en Puig, 31.08358, Arenys de Munt, BARCELONA,Spain

Tel/Fax: +34 93 7950113

www.jets-munt.com

Summary of Contents for Merlin M122NG

Page 1: ...Manual Version 1 5 2021 Torrent d en Puig 31 08358 Arenys de Munt BARCELONA Spain Tel Fax 34 93 7950113 www jets munt com E mail sales info jets munt com service service jets munt com Copyright 2018 J...

Page 2: ...ough email Jets Munt S L Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain Web site www jets munt com E mail service jets munt com Fax 34 93 7950113 Legal and Disclaimer The engine design and...

Page 3: ...m supplied ecu pump etc You will breach your warranty agreement and you will find it is a precision assembly which you will be unlikely to re assemble without considerable difficulty and specialist eq...

Page 4: ...e Ensure you have no loose items of clothing ties etc or equipment which can readily be sucked into the engine intake even from adjacent to the engine 4 Always operate your engine in open air away fro...

Page 5: ...nal thrust 15C and sea level 98N 12 2kg Max RPM 151 000 152 000 Idle RPM 41 000 40 000 Idle thrust 4N 4N EGT max rpm 650 700 C 650 700 C Fuel consumption 272g min 340g min Minimum exhaust pipe diamete...

Page 6: ...nted as near to the centre of gravity CofG of the model as possible This will minimize the CofG shift as the fuel is used during flight 5 Any air ducting to the inlet of the engine must have sufficien...

Page 7: ...ding all engine parameters can be saved later to a memory card where it can be read using a text editor or our viewer software Also this data can be sent to engine manufacturer to be studied A detaile...

Page 8: ...the ecu as shown The fuel pump is a delicate element dropping it on the floor can damage it always handle with care Never disassemble the fuel pump warranty from pump manufacturer will become void It...

Page 9: ...dio manual for this before you start Avoid using the digital trim if possible Aligning transmitter with ecu As the display does not photograph well we have reproduced the display readings as a green b...

Page 10: ...tion or switch Engine Cut switch to off and again press the button to store the Idle position into the ecu If you have done all steps correctly the blue LED in the ecu will light up flashing 2 times i...

Page 11: ...ur radio to a 125 If all is correctly adjusted the ecu will stop the engine immediately when receive the STOP signal 100 but if the signal received is Failsafe 125 the ecu will set Idle power during 2...

Page 12: ...ecurity measure is to place a manual valve between the last fuel tank and the pump intake line to prevent that during the process of filling the tanks or during storage some fuel can arrive to the eng...

Page 13: ...flaming during start sequence Priming is achieved by a special menu on the ecu Set the trim to low and go to Info menus and next to Pump test Click on on off to start stop the pump manually Please obs...

Page 14: ...RPM The engine is running Control of engine power rpm is now handed back to the transmitter and controlled by the position of the throttle stick Increase decrease the throttle slowly verifying that t...

Page 15: ...gher altitude will reduce the power output Autorestart function All JetsMunt engines in production include the AUTORESTART function This function can quickly restart an engine automatically in Flight...

Page 16: ...function where the ignitor is energized to full voltage and the pump is started at a power dependent of the current engine status RPM and EGT Once the ecu detects that the combustion has reassumed th...

Page 17: ...possible 5 Once the plane is on the ground even in normal landing or crash landing set the transmitter in the STOP position The engine could restart and go to full power on its own the ecu does not k...

Page 18: ...e Acceleration and deceleration settings Under the RUN menus is possible to change the acceleration and deceleration times The engine is supplied and tested from factory ready to use and usually these...

Page 19: ...using the engine at 80 of its maximum power in these conditions or using the 100 for takeoff but later reducing to 80 during continuous climb We don t recommend using our engines in 3D planes doing fa...

Page 20: ...minutes of operation These measures can be downloaded later to a PC to study the behavior of the engine in flight and to diagnose any possible problems Also after each cycle of operation the Ecu stor...

Page 21: ...The fuel filter provided should be installed in an accessible place for regular inspection close to the intake port of the pump Fuel and Oil 1 Use CLEAN well filtered Jet A1 or kerosene fuel which is...

Page 22: ...tube and submerge it in kerosene for a few days and verify that its characteristics have not changed Maintenance 1 Always keep the engine and its accessories clean and dry 2 Regularly check wires for...

Page 23: ...he life of the element Do not change the voltage please contact to Jets Munt first Adjust the pump power at startup The fuel flow during ignition phase must be finely tuned for each engine pump combin...

Page 24: ...Smart data terminal 24...