Aprilaire 8570 installation instructions Set to HP when installed with heat pumps

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6504 or AHC – This switch is used to configure the thermostat installation as part of a Model 6504 Intelligent Zone System.

•Set to 6504 only if installing as part of a Model 6504 Intelligent Zone System.

•Set to AHC if the thermostat is to be wired to the HVAC equipment or standard zone system.

GAS or ELEC – When set to ELEC, the fan terminal (G) will be energized on a call for heat.

•Set to ELEC when the heat source is electric (such as strip heat).

•Set to GAS when the heat source is fossil fuel (oil, propane, natural gas). For heat pumps, when set to FOSSIL, the compressor terminal(s) will de-energize before the auxiliary heat terminal (W1) is energized, thus acting as a fossil fuel kit.

MULTI or SINGLE – When set to single, the second stage outputs (Y2 and W2) do not energize.

•Set to SINGLE for single-stage furnace/AC applications or single-stage compressor heat pump systems.

•Set to MULTI if the furnace or air conditioner is two-stage or if the heat pump has a two-stage compressor.

HEAT/COOL or HEAT PUMP – When set to HP the compressor terminal (Y1) is the first stage output for both heating and cooling.

•Set to HP when installed with heat pumps.

•Set to H/C when installed with furnace/AC systems, roof top units or boiler/AC combination systems.

STOP! If installing this thermostat as part of a Model 6504 Intelligent Zone System, refer to the Model 6504 Installation Manual for wiring and checkout procedures. Continue Model 6504 installation with Step 10 (page 30).

If wiring this thermostat directly to the HVAC equipment or standard zone control panel, continue with Step 5.

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Contents Instructions Table of Contents Check Cooling Operation CustomizeSafety Instructions Model 8570 Specifications Single-Stage Heat Pump Two-Stage Heat Pump Wire RequirementsTwo-Stage Furnace/AC Radiant 1st Stage HeatKeep the thermostat 18 from an outside wall Select a Mounting Location Open the Thermostat Mount the Thermostat Base to the Wall AHC Set to HP when installed with heat pumps Run a cable with the correct number of wires Wire the Thermostat to the Hvac EquipmentDiagram 1 Single-Stage Furnace and AC Diagram 2 Two-Stage Furnace and AC Diagram 3 Two-Stage Roof Top Unit Diagram 4 Boiler with AC Page Diagram 6 Single-Stage Heat Pump Diagram 7 Two-Stage Heat Pump Mount above anticipated snow line Mount the outdoor temperature sensor see Figure85.4 230.6163.8 117.6IDS ODT CIR GND Mount the AHC and its outdoor temperature sensor Optional Install AN Automatic Humidifier Control AHC+ I- R C H ODT Mount the indoor temperature sensor IDS ODT CIR GND Thermostat Startup Stand Alone Applications From the Main Screen, press the Info button Check FAN OperationTroubleshooting AHC Connection Check Heating Operation Troubleshooting Heating Operation To Cool and make a call for cooling Troubleshooting Cooling OperationThermostat does not call for cooling To Emergency Heat and make a call for heat Troubleshooting Emergency Heat OperationCheck Emergency Heat Operation Heat Pumps Only Differential Customize the Application SettingsOffset Progressive RecoveryDisplay will show the ADV. Settings Menu Range is 0F to 40F Balance Points Heat Pumps onlyTo delete a number, press the Back button Input Dealer Contact InformationTo delete a character, press the Back button Blower Extension for Humidity Control Press the Menu button Press the Call Dealer button Press the Reset buttonDP 10006198 B2203358B BOX 1467 MADISON, WI
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