Hi,
I have a dual fuel heat pump system with oil fired furnace.
I have created a program in the Omni IIe that raise the temp setting from 65 to 70 in the morning.
When outside temp is under the lower balance setpoint (upper: 35, lower: 15), and the program change the setting from 65 to 70, it will start the first stage(heat pump) for about 2 seconds and I can hear the heat pump compressor start and immediately stop (after 2 seconds or so) even when temp is lower than 15 outside. Right after the 2 seconds, I see on the Tstat that the 1st stage heat arrow is flashing (waiting for the min on or off timer).
So this morning, at 5 am, outside temp was 9, the program changed the setting from 65 to 70 and I could hear the heat pump compressor kick in for 2 second and right after I checked the Tstat, first stage heat arrow was flashing. After the flashing arrow (waiting time of around 6 min), the 2nd stage heat start (oil).
My concern is that it suppose to have a lockout on the heat pump under 15 Fahrenheit but the Tstat kick in the first stage heat for couple of seconds. The way I see it is that it's suppose to immediately start with the 2nd stage heat and never try the first stage when outside temp are lower than 15.
I think it is not good for the heat pump compressor to start for 2 seconds only.
Here are my omnitat2(RC-1000) settings:
balance setpoint - upper=35F, lower=15F
Cool min on - 7
Cool min off - 8
Heat min on - 7
Heat min off - 8
Cool stages - 1
Heat stages - 2
Heat eec - 7
Cool eec - 5
aux heat differential - 2
start delay - 5 min
Cool anticipator - 5
heat anticipator - 4
2nd/3rd stage extended on - off
I have a dual fuel heat pump system with oil fired furnace.
I have created a program in the Omni IIe that raise the temp setting from 65 to 70 in the morning.
When outside temp is under the lower balance setpoint (upper: 35, lower: 15), and the program change the setting from 65 to 70, it will start the first stage(heat pump) for about 2 seconds and I can hear the heat pump compressor start and immediately stop (after 2 seconds or so) even when temp is lower than 15 outside. Right after the 2 seconds, I see on the Tstat that the 1st stage heat arrow is flashing (waiting for the min on or off timer).
So this morning, at 5 am, outside temp was 9, the program changed the setting from 65 to 70 and I could hear the heat pump compressor kick in for 2 second and right after I checked the Tstat, first stage heat arrow was flashing. After the flashing arrow (waiting time of around 6 min), the 2nd stage heat start (oil).
My concern is that it suppose to have a lockout on the heat pump under 15 Fahrenheit but the Tstat kick in the first stage heat for couple of seconds. The way I see it is that it's suppose to immediately start with the 2nd stage heat and never try the first stage when outside temp are lower than 15.
I think it is not good for the heat pump compressor to start for 2 seconds only.
Here are my omnitat2(RC-1000) settings:
balance setpoint - upper=35F, lower=15F
Cool min on - 7
Cool min off - 8
Heat min on - 7
Heat min off - 8
Cool stages - 1
Heat stages - 2
Heat eec - 7
Cool eec - 5
aux heat differential - 2
start delay - 5 min
Cool anticipator - 5
heat anticipator - 4
2nd/3rd stage extended on - off
