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Rbertalotto's avatar
Rbertalotto
Explorer
Aug 14, 2016

AirConditioning / Honda 2000/ Progressive EMS...issues

Here is my sey up:
(2) Honda 2000 Generators with parrell kit
Progressive Industries EMS-HW30C with Remote display
Dometic 457915.701 AC unit / 13,500 btu / 1/5HP, 20amp min cir
Supco Hard Start Capacitor SPP6 in AC unit.

I installed the hard start capacitor at home in 80 degree temperature last week. Tested the AC with one generator and it started with Honda NOT in eco boost mode....running full tilt. AC started fine. Would not start with generator in eco boost mode.

This weekend I'm camping in 90 degree, extreme high humidity weather. Both generators hooked up.

AC will not start if both generators are on eco boost. If I run them both full tilt, the AC starts fine. Then I can return the generators to eco boost and it will run fine until they cycle the compressor off, Once it tries to start again, the PI-EMS unit trips and the compressor never comes back on until I go outside and shut off eco boost.

If I deactivate the EMS, then the AC will function with both generators on eco boost.

Does humidity have any effect on the starting requirements of an AC unit?

Anyone have a similar setup they can report on?

Thanks in advance!

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  • SoundGuy's avatar
    SoundGuy
    Explorer
    Aug 14, 2016
    Rbertalotto wrote:
    Does humidity have any effect on the starting requirements of an AC unit?


    Temperature. As one who has owned two EU2000i gensets and powered 13.5K A/Cs your results are exactly what I would expect ... as outside ambient temperature rises so too does compressor head pressure, causing it to draw even more power. With your EMS in the circuit and gensets running at ECO speed low voltage threshold is causing the EMS to disconnect power to the trailer, remove it and the A/C compressor starts even though long term damage may result from repeated excessive low voltage sag each time the compressor attempts to ramp up to speed. Your solution is to use both gensets paralled together in order to avoid excessive low voltage sag and to remove the EMS when running on the gensets.

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