New2HP
11-23-04, 02:10 PM
Hi
I live in Canada, Ontario, Ottawa.
I am running a York Split-System Heat Pump, but I don't know much about it. I think it is a 2 ton unit and maybe 10 years old. It is a forced air, oil type system with this coil for HP system in furnace. The system was here when I bought the house last summer, and I don't have any documentation (only small pies of paper with Fault Code - I am assuming that this is a code for reading the stage of external part of HP).
Thermostat Honeywell CT3611 (for heat pump).
The system was working OK during the last summer (I did not see any problems).
Now when is cooler outside, the system behaves very strange. Oil section of the furnace is kicking in quite often specially during the morning hours.
The system has 2 small panels. One panel is attached to furnace unit in my basement. Second panel attached to external HP unit outside. The panel outside is labeled York Guard 4 and have a number of wires and cables with letters and numbers. Wires are labeled and with colors:
O - orange, B - brown, R - red, X - black, 66 - violet, Y - yellow, 60 - blue W- white 53 - green which are connected. S, C. J are not connected.
Panel has more wires but only those wires listed above are coming from thermostat to first panel attached to furnace and coming here to this outside panel. The panel has a small one Green Led which is blinking (I am assuming that Fault Code is for this Green Led).
I am going to describe the strange behavior of the system (temp outside ~ 0 C and humidity). The strange behavior starts during the morning hours when thermostat is calling for heating and setting is jumping from 18 C do 20 C.
1. The oil furnace: starts working (oil pump and blower fun are ON)
The outside unit: Compressor is OFF, Fan is OFF- (HP is not working).
2. After few minutes. The outside unit: Compressor is ON , Fan is OFF. System is in defrosting mode (I see that frozen coil is defrosting) after ~2 minutes the HPs Fan is starting to run and stops
3. After that only my furnace works - oil pump is ON and blower fun ON. And it does that for many hours. I have situation where oil pump is ON and OFF (like regular oil furnace heating mode) but blower fun never stops (even the setting for the fan on thermostat is in automatic mode). Temperature in the rooms is according to set on thermostat but my HP is not working. I checked sensor which is attached to HP frame and wires are going to York Guard 4 panel. The sensor has 25 K Ohms. (I dont have any idea what kind of sensor is it)?
I checked voltage when furnace is working (when HP is not working). Wires: O orange 26V, B brown 26V, R red 0V, X black 5V, 66 violet 0V, Y yellow 0V, 60 blue 0V, W- white 0V, 53 green 0V.
Like I mentioned the furnace is working and stopping but Blower fan never stops (fan stops only when room temperature riches a set temperature on thermostat). When furnace stops and Blower fan is running the voltage is: Wires: O orange 26V, B brown 26V, R red 0V, X black 17V, 66 violet 26V, Y yellow 0V, 60 blue 24V, W- white 24V, 53 green 24V.
Both pipes between inside and outside units are little worm (not hot)
Green led is blinking 2 times (according to my Fault Code: High pres. cut-out opened; what ever it means?)
After 4 hours of this type of working behavior the system will start working in normal way. In my furnace only Blow fan is ON. Oil pump is OFF and outside unit is ON and bigger pipe is hot (very hot) and every think is OK until next morning, when every think starts all over again.
During HP normal operation I measured a voltage: Wires: O orange 25V, B brown 25V, R red 0V, X black 16V, 66 violet 25V, Y yellow 0V, 60 blue 24V, W- white 25V, 53 green 0V.
Green Led in York Guard 4 panel never changes his number of blinking and has 2 blinks. It was information on HP unit, that in June 2002 leak was repaired and refrigerant was added.
Any helps are appreciated.
Thanks
Gerry
Ps The voltage was measured between wires and ZERO (ground).
I live in Canada, Ontario, Ottawa.
I am running a York Split-System Heat Pump, but I don't know much about it. I think it is a 2 ton unit and maybe 10 years old. It is a forced air, oil type system with this coil for HP system in furnace. The system was here when I bought the house last summer, and I don't have any documentation (only small pies of paper with Fault Code - I am assuming that this is a code for reading the stage of external part of HP).
Thermostat Honeywell CT3611 (for heat pump).
The system was working OK during the last summer (I did not see any problems).
Now when is cooler outside, the system behaves very strange. Oil section of the furnace is kicking in quite often specially during the morning hours.
The system has 2 small panels. One panel is attached to furnace unit in my basement. Second panel attached to external HP unit outside. The panel outside is labeled York Guard 4 and have a number of wires and cables with letters and numbers. Wires are labeled and with colors:
O - orange, B - brown, R - red, X - black, 66 - violet, Y - yellow, 60 - blue W- white 53 - green which are connected. S, C. J are not connected.
Panel has more wires but only those wires listed above are coming from thermostat to first panel attached to furnace and coming here to this outside panel. The panel has a small one Green Led which is blinking (I am assuming that Fault Code is for this Green Led).
I am going to describe the strange behavior of the system (temp outside ~ 0 C and humidity). The strange behavior starts during the morning hours when thermostat is calling for heating and setting is jumping from 18 C do 20 C.
1. The oil furnace: starts working (oil pump and blower fun are ON)
The outside unit: Compressor is OFF, Fan is OFF- (HP is not working).
2. After few minutes. The outside unit: Compressor is ON , Fan is OFF. System is in defrosting mode (I see that frozen coil is defrosting) after ~2 minutes the HPs Fan is starting to run and stops
3. After that only my furnace works - oil pump is ON and blower fun ON. And it does that for many hours. I have situation where oil pump is ON and OFF (like regular oil furnace heating mode) but blower fun never stops (even the setting for the fan on thermostat is in automatic mode). Temperature in the rooms is according to set on thermostat but my HP is not working. I checked sensor which is attached to HP frame and wires are going to York Guard 4 panel. The sensor has 25 K Ohms. (I dont have any idea what kind of sensor is it)?
I checked voltage when furnace is working (when HP is not working). Wires: O orange 26V, B brown 26V, R red 0V, X black 5V, 66 violet 0V, Y yellow 0V, 60 blue 0V, W- white 0V, 53 green 0V.
Like I mentioned the furnace is working and stopping but Blower fan never stops (fan stops only when room temperature riches a set temperature on thermostat). When furnace stops and Blower fan is running the voltage is: Wires: O orange 26V, B brown 26V, R red 0V, X black 17V, 66 violet 26V, Y yellow 0V, 60 blue 24V, W- white 24V, 53 green 24V.
Both pipes between inside and outside units are little worm (not hot)
Green led is blinking 2 times (according to my Fault Code: High pres. cut-out opened; what ever it means?)
After 4 hours of this type of working behavior the system will start working in normal way. In my furnace only Blow fan is ON. Oil pump is OFF and outside unit is ON and bigger pipe is hot (very hot) and every think is OK until next morning, when every think starts all over again.
During HP normal operation I measured a voltage: Wires: O orange 25V, B brown 25V, R red 0V, X black 16V, 66 violet 25V, Y yellow 0V, 60 blue 24V, W- white 25V, 53 green 0V.
Green Led in York Guard 4 panel never changes his number of blinking and has 2 blinks. It was information on HP unit, that in June 2002 leak was repaired and refrigerant was added.
Any helps are appreciated.
Thanks
Gerry
Ps The voltage was measured between wires and ZERO (ground).