When the outdoor temperature is ... compressor energized W1* Auxiliary heating, furnace energized Y2 Second-stage cooling/heating, compressor ... For applications involving the use of a balance point … This is when your home HVAC system switches over to backup heat, usually an electric resistance heating element. "Outdoor Temperature Lockouts" - Compressor Lockout/Balance Point is set to 35F. Safety should be the priority in any workplace environment, whether it’s a construction site, a factory or another setting. Other values not accepted. 2 Balance point/Aux Heat Lockout plus 2°F droop ** 0346 Dual fuel heat . pump upstage to . There is another setting called "Compressor lockout" that will shut … perature sensor provides auxiliary heat lockout, balance point operation, and dual−fuel compatibility. See page 8. Compressor Minimum Cycle Off Time: The amount of time the compressor remains off between cycles. 5°F to 60°F (in 5°F increments) -15.0°C to 15.5°C (in 2.5°C or 3.0°C increments) 3180. Balance Point (Compressor Lockout) 0 = Off integer from 5 to 65 degrees Fahrenheit in only 5 degrees increments. Rather annoyingly, if the unit been operating above balance point at the time of compressor lock-out, auxiliary heat did not take over automatically. Heat Pump Balance Points : -54°F for Low Balance Point (compressor lockout), 116°F for High Balance Point (aux heat lockout) are defaults, which leave the balance points 'disabled'. Find the user manual you need for your home appliance products and more at ManualsOnline. The locking out of the auxiliary heat can be a big energy saver and is highly recommended. 5°F to 65°F (in 5°F increments) -15.0°C to 18.5°C (in 2.5°C or 3.0°C increments) 16 ISU # Description. At this point, the thermostat will be fully functional; its de­ fault temperature setpoint (not shown) is 70°F. The compressor is what drives the refrigerant through the phase-changing, ... With Ecobee's monitoring capabilities, it would be simple to determine your home's true balance point and then adjust the lockout accordingly. furnace timer. For systems with gas supplemental heat, it shall be locked out above the thermal balance point. Option 2: (Balance point/Aux Heat +2°F droop): Compressor works only above auxiliary lockout temperature, backup heat works only below balance point, 2°F droop between temperatures. ... and when the temperature out side was below the balance point that the HP could handle the load the secondary heat came on along with the heat pump to augment the heat. Will start soon A five minute safety delay prevents the compressor from operating too soon after shut-down to allow internal pressures to equalize. Full Guide to Air Compressor Safety Last updated on: April 28th, 2020 at: 02:19 pm. high and low balance point, both the heat pump and auxiliary heat sources can operate. 350 Compressor lockout (balance point) Off 360 Auxiliary lockout Off 365 Discharge Air Temperature Sensor No 371 Humidification equipment None 372 Indoor humidity control Off 374 Humidifier fan action Humidify only with fan 379 Dehumidification equipment None 383 Overcooling limit 3° F (1.5° C) 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 Balance Point (Compressor Lockout) Off, 5 °F to 60 °F (in 5 °F increments) or 15.0 °C to 15.5 °C (in 2.5 °C or 3.0 °C increments) Compressor Lockout requires an outdoor temperature. The point at which the extractable heat energy gets too low for a heat pump to adequately heat your home is called the balance point. Backup heat lockout Off. Setting 3200. Heating Mode Operation When the outdoor temperature is be-low the compressor lock−out tempera-ture (balance point), only the auxiliary heat operates. You should never lock out your heat pump compressor until you are well under the system balance point. Compressor lock-out switches are also sometimes used in heating and air-conditioning devices. Yes that is where you can set the compressor lockout temperature. When outside temperature is below this setting, thermostat will "balance point" is for dual-fuel systems. This is set to 300 seconds (5 minutes) by default. ... No heat pump compressor lockout. A high balance point, the exterior temperature at which heating is required, means other efficiency measures are often needed before heat recovery will be worthwhile. At this point, if the equipment has been fully powered and if a heat demand were present, the system would begin operating. The OAT will lockout stage 3 (strip heaters ) if OAT is above the balance point. 0 No compressor lockout ** [Other options: 5 to 60°F (-15°C to 15.5°C)] 0360 Heat pump . Full Guide to Air Compressor Safety. Below the compressor lockout point, only the resistance heat runs (the outdoor unit is off) Since, I con't figure out what +2, call service means, you can: Between the balance point and the compressor lockout point (around freezing or slightly above) the heatpump and the electric heat are both running. This feature can be locked out by your installer until the outdoor temperature is below the designed balance point as long as the correct equipment is in place to control the system. Compressor lockout / balance point. Other values not accepted. 60 60 minutes ** 0 Off [Other options: 30, 45 or 75 minutes] 0350 Heat pump . Cool cycles per hour 1 - 6. 1 1 M28706 These switches are not designed for safety considerations, but rather to keep the units from heating or cooling to a wasteful or unnecessary extent. NOTE − There is a minimum 5°F dead-band between the compressor and auxiliary heat lock−out temperatures. Defrost Compressor Delay 0, 5, 15, 30s 2-stage HP only Max compressor RPS Yes Inverter only Max RPS offset 0 to 20 in 0.5 RPS steps Inverter only heat pump lockout temp-or-balance point-20°F to 65°F in 5°F increments 15°F If also electric or gas heat. Balance point only. Compressor Settings. A manual reset low pressure switch terminated compressor operation leading to one or more service calls. NOTE - Tem perature scale default is Fahrenheit units but may be reset to show Celsius, if desired. 5°F-15.0°C. Also for: Comfortsense l3522c, Comfortsense l3532h, Comfortsense 3000 series. Balance point plus 2° droop. ComfortSense L3511C thermostat pdf manual download. It would probably be more efficient to lower that to a little below freezing but I have set it at 35 before. Check Strip Heat settings a. Lock out settings of below 35 F and above the thermal balance point are allowed. Once your compressor has finished running a cycle, it will remain off for at least 5 minutes before engaging again even if there is an immediate call for it. auxiliary lockout. Compressor lockout is disabled or set to 0 degrees F. COMPRESSOR LOCKOUT AUXILIARY LOCKOUT COMPRESSOR AND FAN ONLY COMPRESSOR AND FAN OPERATE OUTDOOR TEMP ELECTRIC BACKUP HEAT AND FAN ONLY. is required). Appliance manuals and free pdf instructions. Set Compressor Lockout to the temperature below which it is inefficient to run the heat pump. Check Compressor Lockout settings a. Retrofitting open displays to include glass doors will make a significant impact on the energy use of each refitted case. Option 1 (Balance point + 2°F droop): As above, but backup heat is activated if room temperature drops by 2°F (compressor is deactivated). From the installer set -up, scroll through the ISU menu by pressing < ... Scroll through until ISU 355 is displayed, referred to as the Balance Point : e. ISU 355 must be set to "Off", or 5 degrees or less to meet spec : 4. Balance point/auxiliary heat lockout plus 2° droop. 5/2 Day Programmable Thermostats. Compressor Balance Point 0 deg – No Lockout 4 Programming Installer Settings Function Status After CLEAR Auxiliary Balance Point 0 deg – No Lockout Economizer Control None – Disabled UV Monitor 0 days – No Warning, Timer reset Humidifier Pad Monitor 0 days – No Warning, Timer reset This is the point at which you are picking up as much heat from outdoors as the home is giving up to the outdoors. choose appropriate auxiliary lock− out temperature. IF THE COMPRESSOR CANNOT REACH OR MAINTAIN TEMPERATURE SETTING, BOTH THE COMPRESSOR AND ELECTRIC BACKUP HEAT WILL OPERATE. View and Download Lennox ComfortSense L3511C installation instructions manual online. View and Download Honeywell 69-2092EFS-07 instruction manual online. Mechanical lockout thermostats are not allowed. Off . Ambient lockout This indicates that either the outdoor temperature is above or below the balance point temperature 3160 Compressor lockout / balance point Off 5°F to 60°F (in 5°F increments) -15.0°C to 15.5°C (in 2.5°C or 3.0°C increments) 3180 Backup heat lockout Off 5°F to 65°F (in 5°F increments) -15.0°C to 18.5°C (in 2.5°C or 3.0°C increments) 3200 Cool cycles per hour 1 - 6 3220 Cool cycles per hour - stage 2 1 - 6 3240 Heat cycles per hour 1 - 12 compressor lockout. Default Value: ... Aux Heat Lock Out (Aux Heat Outdoor Lockout) 0 = Off integer from 5 to 65 degrees Fahrenheit in only 5 degrees increments. 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