
Originally Posted by
hans-Dieter
ok now im getting sum heat with my pump i set my thermostat to heat pump with aux # 7 at the 170 function and to cooling changeover valve # 0 at the 190 function
Looking at the manual I think you have it. 170=7 is multi-stage and 190=0 energizes the reversing valve correctly for your HP as I hinted at earlier. Your tstats default is backwards from your HP.
Does your cooling now work?
Also make sure function 180, 240 and 270 are set correctly. My concern would be the fan would shutdown too soon and leave your heat exchanger too hot, but its unclear to me exactly what those functions do.
BTW write down all these values when you get things correct in case the tstat loses them.

Originally Posted by
hans-Dieter
is that ok to let go the pump in winter time even at -30 degres celcius?? or it will automaticly go on (aux) oil mode at -12??
thank you
It is okay to let the HP run down to some low temps even though it will not satisfy all your heating needs. At low temps it will run a little followed by your furnace picking up the slack. But at some point you may need to lock out the HP to prevent possible compressor damage. I don't see anywhere in the manual where you can lockout your aux above a certain temp to maximize your dollars, nor lockout the HP below a certain temp to protect the compressor.
You can leave 300=1 and when outdoor temp gets below say 10 degrees F switch to EM/Aux heat only. Contact the manufacturer and see if your HP has a safety low temp lock out in its control module. If not, ask them what is a safe temp. Remember some of those low temps may be reached when you are asleep.
There is also an economic balance point where based on your electric rates, oil price, efficiency of your furnace and HP COP numbers you may want to switch over to just furnace sooner. If you have those numbers let me know and we can figure that out. I'm betting however, if oil is as expensive there as here you want to run that HP to the lowest temps that are safe.