Midnight is a good time to test!
I just decided to do some late night testing on the newly installed Sanyo #2.
The den was already at 21C when I turned on the Sanyo. So, nothing happened.
After waiting for a few minutes, I clicked it up to 22.
It started stepping up in power, but a little faster than I expected.
At around 1400 watts, it topped out and started back down. (As expected).
But when it hit 1000, I clicked up 23 C. Power started climbing again.
it stepped up to about 1500 watts and started back down hill.
I waited about 10 second until it got back down to 1kw, and pushed it up to 24C (75.2F).
This was happening faster than usual, I didn't know what to expect.
And, this time I was fascinated to see it pause at 2kw and start to fall back.
So, this new system seems to be better behaved than old #1..
Tomorrow, I plan to try bring it up from a cold start, up 8 degrees.
If it can handle that and stay at that 2kw peak, I'll be a happy old dude.
That would mean we could use the programmable timer function
and have it come on early in the AM, (Unattended).. Even if it was cold..
~~~~~~~~
9:40AM 8 deg call test.
We used #2 Sanyo this morning to take the chill out. It's 57F outdoor right now.
Sanyo #2 was running at idle, with the room at 21C before starting the test.
With the built-in thermostat enabled (Remote sensor not used), I set it to 28C. (82.4F).
The power stepping looked the same, and within 4 or 5 minutes, it was using over 2kw.
But, at 2370 watts, it slowed and stopped increasing. It settled down to 2350w
and stayed there for about 5 minutes, before slowly stepping back down under 2000w.
When I could see it was stabilizing again at around 700w, I ended the test.
So, is seems like Sanyo #2 is much more stable than old Sanyo #1.
Is it because #2 is lower on refrigerant? Or, does the new IDU have better firmware.?.
Once the cold weather (under 20F) sets in, I'll repeat this test.
Otherwise, I'll never know if my automatic 10A limit breaker is working or not!
Hey, wait a sec! 2370 watts is 9.7A at 244 Volts! Almost 10A!
Maybe the TED was reading a bit low.?. And
Maybe the 10A DIY breaker started
Regulating the power, without causing a reset.?.
If the SSR was triggering off for only 2 or 3 AC cycles, that could have
throttled the power back at 10A, slightly lowering the DC to the motors..
The current flow sensor that I installed inside Sanyo #2 ODU might not have
the same
hysteresis as the sensor used on Sanyo #1..
(It's a different brand).
Dang, too many variables for my old brain.. I guess this is what makes
the DIY hobby more interesting than sitting behind a desk all day..
Cheers,
Rich