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Xringer · 03-07-11, 03:18 PM

I set it to 22C, because the house was at about 21C. If I called for 25C or hit
the High-Power button, the power use would start increasing in 10-20 watt steps
every second or two, until the system was drawing around 3,600 watts.
(The max it should use is about 2,600 watts)..

I'm trying to prevent the system from going into over-load, since I think it's not good for the life of the system.
I suspect the old outdoor unit failed after it ran up to 3,600 watts too many times.

One of the problems I'm having with the system is the 3.6kW surge after each defrost cycle.

I'm dealing with the problem. I have an alarm that beeps me awake at 1kW.
I shut down the system and re-start it. (Sometimes at 3AM).
It's the only way I have found to by-pass the "Instant High Heat" part of the control program.

03-07-11, 03:18 PM	#339
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 115 Thanked 250 Times in 230 Posts	I set it to 22C, because the house was at about 21C. If I called for 25C or hit the High-Power button, the power use would start increasing in 10-20 watt steps every second or two, until the system was drawing around 3,600 watts. (The max it should use is about 2,600 watts).. I'm trying to prevent the system from going into over-load, since I think it's not good for the life of the system. I suspect the old outdoor unit failed after it ran up to 3,600 watts too many times. One of the problems I'm having with the system is the 3.6kW surge after each defrost cycle. I'm dealing with the problem. I have an alarm that beeps me awake at 1kW. I shut down the system and re-start it. (Sometimes at 3AM). It's the only way I have found to by-pass the "Instant High Heat" part of the control program.