Brand new Ruud heat pump. New complete 410-A system, actually. In cooling mode it showed low vapor temperature, just at 30 degrees, not sure what that equates to in pressure for 410-A but regardless, I juiced it up to get it to where the txv was keeping it at a steady 42. I did that just to make sure it had enough for heating.
Now I turn the system via old non digital heat pump stat to heat. Blower begins to run, heat pump is on five minute delay, alternating flashing on defrost board. Finally she comes on and flash code changes to dual simultaneous slow, normal.
Warm air still drawing from top of heat pump and liquid side pressure rises to a near 700 , tripping the high pressure switch. That was as far as I got, home owner had to leave. I was only at the home for a total of fifteen minutes.
I'll be going back first thing in the morning. I did get ahold of a Rheem/Ruud distributor technician, said that the charge must be precise for heat pump and that reversing valve actuates via B on stat. I myself at this point was wondering if the rev. valve was powered or not with the warm air still drawing from the top of heat pump and the vapor line not changing pressures between cool and heat. Anyone?
So far that's all I have to check and go on in the morning so any and all help appreciated.
Thanks.
ps, aux light on old stat was on as soon as stat was calling for heat but only cold air the entire time. the orginal call was no heat. home owner said the aux light was on the entire time and nothing happened, never had even warm air.
pss, I did not get a look at any stat wiring or any wiring
Now I turn the system via old non digital heat pump stat to heat. Blower begins to run, heat pump is on five minute delay, alternating flashing on defrost board. Finally she comes on and flash code changes to dual simultaneous slow, normal.
Warm air still drawing from top of heat pump and liquid side pressure rises to a near 700 , tripping the high pressure switch. That was as far as I got, home owner had to leave. I was only at the home for a total of fifteen minutes.
I'll be going back first thing in the morning. I did get ahold of a Rheem/Ruud distributor technician, said that the charge must be precise for heat pump and that reversing valve actuates via B on stat. I myself at this point was wondering if the rev. valve was powered or not with the warm air still drawing from the top of heat pump and the vapor line not changing pressures between cool and heat. Anyone?
So far that's all I have to check and go on in the morning so any and all help appreciated.
Thanks.
ps, aux light on old stat was on as soon as stat was calling for heat but only cold air the entire time. the orginal call was no heat. home owner said the aux light was on the entire time and nothing happened, never had even warm air.
pss, I did not get a look at any stat wiring or any wiring