heat will not engage unless a thermometer (I guess located at my outside compressor?) Post photos, respond to polls and access other special features. Heat Pump Dual Fuel Control Yes, Logic Option - No Sensor Required or Outdoor Sensor Option - Outdoor Sensor Provides Outdoor Temperature Setting to Lockout the Heat Pump and Switch to Gas Heat Heat Pump Auxiliary Lockout Control - Outdoor Sensor Option They both supports multi stage heat pumps and when it comes to aux heating, they both support upto 2 stages of heating. I would like to change my heat pump balance point so that the heat pump isn't used once the outside temperature drops below above 40F. Because heat pumps work by pulling heat from the air outside your home, the colder (specifically, temperatures below 40 degrees) that air is, the more difficult it is for your heat pump to operate this way. Remote. Heat pump units - In HEAT mode, a timed delay keeps indoor fan off for two minutes to prevent unheated air from being circulated by the indoor fan. Auxiliary Heat Is only available with heat pump system. Heat Pump troubleshooting . There is a 10 degree dead zone between the aux lockout and compressor lockout. I'm using the Nest thermostat. How It Works. With a heat pump, there is a valve in the condensing unit that reverses the flow of the refrigerant in the system. Page 24 Heat Pump: Both auxiliary and compressor lockout temperatures can be changed in the Heat Pump section of the Advanced Settings menu. Efficiency Tips. Heat Pump Repair Advice Advisory. Select Auxiliary Heat Lockout. When I moved in, the heat pump compressor lockout (thermostat setting 0350) was set at 35 degrees. Luckily, the solution is simple. 0360 Heat pump auxiliary lockout 0 No heat pump auxiliary lockout ** [Other options: 5 to 65°F (-15°C to 18.5°C)] Setup function Settings & options (factory default in bold) Installer setup **See pages 6 & 7. 10°F -12.0°C 15°F -9.5°C 20°F -6.5°C 25°F -4.0°C 30°F -1.0°C 35°F 1.5°C 40°F 4.5°C 45°F 7.0°C 50°F 10.0°C 55°F 13.0°C 60°F 15.5°C 65°F 18.5°C (Show 1/2 degree C) Only shown for heat pump applications with an outdoor temperature sensor present. 0360 Heat pump auxiliary lockout 0 No heat pump auxiliary lockout Other options: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65 °F (-15 °C to 18.5 °C) Setup functions Settings & Options (factory default in bold) Shaded areas below apply only to TH7220. Recently we've been dipping below freezing at night, and I noticed my system has been barely putting out any heat when it gets cold outside. A quick search shows that WA state uses the 2012 International Energy Conservation Code. In other words if your aux lockout doesn't go lower than 40 degrees then your compressor lockout is set at 30 degrees. Installer setup Continued on next page . Heat pumps having supplementary electric-resistance heat shall have controls that, except during defrost, prevent supplemental heat operation when the heat pump compressor can meet the heating load. Heat Pump Efficiency Outside Temperature Graph . I'll press them more on it - perhaps they can lower the setpoint then. But on the Nest Thermostat itself, the term "Lockout" is not used, instead you see " Use the heat pump compressor when the outdoor temperature is above ". Backlight Key Press … 40 ° F (4.5 ° C) 45 ° F (7 ° C) 50 ° F (10 ° C) 55 ° F (13 ° C) 60 ° F (15.5 ° C) Shown if electric is chosen for backup heat source and outdoor temperature sensor for control is selected. If you have problems with your Trane heat pump, don't rush to call for expensive master's help – you can fix your device for free. Press and hold the heat button for 3 seconds to ensure the thermostat is set to "regular" heat. Caution: any changes made will be permanent. Cannot be combined with other Energy Trust heat pump or controls incentives. 08. I completely locked out the heat strips by setting the outdoor temperature threshold for aux heat to 25F and the minimum compressor outdoor temp to also 25. New comments cannot be posted and votes cannot be cast, All things related to HVAC - Heating, Ventilation, & Air Conditioning, Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcuts. Not available for non-heat pump systems. 10°F -12.0°C 15°F -9.5°C 20°F -6.5°C 25°F -4.0°C 30°F -1.0°C 35°F 1.5°C 40°F 4.5°C 45°F 7.0°C 50°F 10.0°C 55°F 13.0°C 60°F 15.5°C 65°F 18.5°C (Show 1/2 degree C) Only shown for heat pump applications with an outdoor temperature sensor present. # 7 Auxiliary Heat Lockout (strip heat lockout) must be set to ≤ 35 degrees to meet PTCS specification : g. NOTE- If no outdoor sensor is enabled, lockout settings will not be displayed as selectable options : PTCS Heat Pump Thermostat Support Sheet : Manufacturer: Trane, American Standard : Thermostat Models: XL824, TCONT824, Gold XV, ACONT824, X L850, TCONT850, ACONT850 Platinum 850 , … Oh interesting, thanks for the find. At this point, I do not think that I have heard the aux heat run more than 2 minutes at one time or the heat pump … Will start soon A five minute safety delay prevents the compressor from operating too soon after shut-down to allow internal pressures to equalize. Your heat pump should still put out some heat even when temps outside are … As written that code is reasonable. reads below 36F, no matter what the thermostat requests. Discharge Temp Sensor. See below: **(Special function) Heat Pump Control - Fossil Fuel Backup (Setup Function 0345): Option 0 (No … If you have problems with your Rheem heat pump, don't rush to call for expensive master's help – you can fix your device for free. Get it as soon as Wed, Jan 13. It will run during defrost and if the heat pump can't keep up it will kick on when the indoor temp falls 2 degrees below the set point. Thanks for the help. FREE Shipping by Amazon. "Aux" is short for auxiliary heat. Ambient lockout This indicates that either the outdoor temperature is above or below the balance point temperature settings. 0360Heat pump auxiliary lockout 0 No heat pump auxiliary lockout ** [Other options: 5 to 65°F (-15°C to 18.5°C)] 0365Discharge temp. Have you ever gone outside in the summer and put your hand over the condensing unit? That's where supplemental heat—which is NOT the same things as emergency heat—kicks in. Get it as soon as Tue, Jan 12. 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