background image

Battery  charging  and  care:

The engine come with a LiPo (2 cell) batteries. You can use any type and capacity of battery, but only of 7,2 - 7,4V
nominal voltage, minimum recommended capacity is 2000mAh 20C type. Never use a 3s (11,1V) battery. Special 
care should be taken with LiPo technology and they should be charged with a LiPo charger, using a regular NiCad 
charger could cause the battery exploding or taking fire. Always follow the charger manufacturer 
recommendations.
The ecu will not start the engine if the batteries show low voltage, but once the engine is running, the ecu will
keep it running until the batteries are completely empty, so this can cause the battery to discharge below it’s
safe voltage.

Always disconnect the batteries from the ecu after a flying session. Always there is a small amount of current 
drawn from the ecu that can cause that a fully charged battery of 2000mAh be empty after 2 month.

Running  Time  Counter

Using the second left hand button, scroll through the menu’s to the INFO menu.
This screen contains a timer which shows:

The total running time of the engine in minutes (Tot).
The time in seconds of the last engine run (Last).
The total number of starts (cycles - CY) .
Use this screen to keep track of your total running time and starts.

Extra ECU functions

The ecu provide several menus that allow to do some tests and personalize some settings, like:

• 

Adjust the thrust/throttle curve (Linear, Expo,Intermediate). Usual seting is EXPO that provides linear RPM

• 

Check the capacity of battery used.

• 

Test the starter, Glow Plug, valves and Pump.

• 

Check the failsafe counter (time and pulses of wrong RC signal).

• 

Check and set the maximum  airspeed  (if pitot tube and sensor installed).

• 

Adjust maximum engine power.

Please refer to the FADEC manual 

(http://ww

 

 w

   .espiell.com/

 

 F

  AD06.pdf)

 

 

  for further information.

17

18

Timer: 

Tot:0000m

Last: 000s 

Cy:000

Summary of Contents for Merlin 90K

Page 1: ...Merlin 90K Instruction Manual Version 1 0 2009...

Page 2: ...as system Gas Valve Engine installation Fuel system Fuel valve Fuel lter 11 13 ECU Engine Control Unit Set Up Aligning transmitter with ecu Preparing the engine for running First engine runs Priming t...

Page 3: ...ail Jets Munt S L Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain www jets munt com info jets munt com Fax 34 93 7950113 Legal and Disclaimer The engine design and the contents of this manua...

Page 4: ...y to re assemble without considerable dif culty and specialist equipment Simply slackening the spinner nut of the rotor will immediately lose the delicate balance condition without which the engine ma...

Page 5: ...touch the engine whilst it is running Turbines rotate at a very high rpm and the engine casing and exhaust can reach very high temperatures Ensure anything affected by heat is kept well clear of the e...

Page 6: ...ransmit incorrect rpm information to the ECU The fuel pump should be preferably mounted with the spindle in the vertical position with the motor uppermost In the event of any fuel seeping from the pum...

Page 7: ...e mounting provides an attachment for the temperature probe using the two nuts provided The temperature probe has been carefully shaped and installed at the factory to align with the small hole in the...

Page 8: ...tion of ow inside the lter is not important but should be always the same after rst use Do not run the engine without the fuel lter Finally connect the fuel pump the valves and the battery to the ecu...

Page 9: ...normally has the effect of producing the trim down function Check your radio manual for this before you start DO NOT use the digital trim in any case Aligning transmitter with ecu As the display does...

Page 10: ...trim and throttle stick are set to idle position on the transmitter Lower your throttle trim and the green LED will go out indicat ing correct reading of the transmitter engine shut off signal by the...

Page 11: ...e exhaust as soon as the airflow inside the engine is sufficient and will be ignited in the exhaust causing a hot start in extreme cases a big fireball that will not hurt the engine but can destroy th...

Page 12: ...n the exhaust temperature is of around 70 C the data terminal reading will change to SWITCHOVER during this phase the fuel will be routed to main injectors and the speed of the rotor will be progressi...

Page 13: ...the starter motor List of ECU message codes Here is a list of possible messages shown on the data terminal screen and their meaning TrimLow Indicates that the signal received from the transmitter corr...

Page 14: ...has dropped below a minimum Cause could be lack of fuel air bubbles problem with the batteries or defective RPM sensor The engine has been shutdown because the temperature has dropped below the minimu...

Page 15: ...ft turbine oils e g Aeroshell 500 Exxon 2380 Mobil JetOil II Mobil DTE Light turbine oil or 2T synthetic oil with a speci cation JASO FC or better 5 The fuel must be mixed with turbo oil in the ratio...

Page 16: ...om the ecu that can cause that a fully charged battery of 2000mAh be empty after 2 month Running Time Counter Using the second left hand button scroll through the menu s to the INFO menu This screen c...

Page 17: ...is insuf cient fuel or air bubble entering the engine during the initial start up 2 Low battery capacity 1 The ECU battery is empty recharge 2 The lters are dirty 1 The fuel level is low and or there...

Page 18: ...Jets Munt SL Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain Tel Fax 34 93 7950113 ww w jets munt com info jets munt com Copyright 2009 Jets Munt SL All Rights Reserved...

Reviews: