Originally Posted by moosetags
When running my A/C with my two Honda 2000s, should I use the ECO setting or not?...
clearly there is some variation based on WHICH ac (size/btu) and WHAT ELSE is drawing electric.
dometic advises 3500 w gensets for the 13.5 and 15,000 btu a/c units.
the local honda sales/service shop advises AGAINST using eco mode with the parallel kit.
i LIKE to run the fridge on electric and other gadgets at the same time the a/c is in use...
and with sudden demand needs (like the a/c) voltage DROPS initially if running in eco mode, according to honda.
so 2 easy checks are...
1. does the 'overload light' on the gensets come ON when the a/c kicks in...
2. does a voltage meter show any drop in voltage and for how long?
i've checked the continuous display voltage meter
in my unit and voltage does drop to the 103-105 range briefly is using eco mode.
this drop does NOT happen when eco mode is OFF.
so it may be penny wise, pound foolish
to use eco during a/c usage or while in parallel operation with large demand gadgets...
it's not clear how much gas is 'saved' in eco mode/parallel when the a/c is on either, but...
these voltage drops aren't good for the a/c and 'overload' isn't good for the gensets...
if not checking voltage drops and overload alerts, the observation that it 'seems to run ok' may be misleading.
with a smaller a/c this may not be an issue, but checking voltage and overload alerts is still prudent.