Aprilaire Model 8570 230.6, 163.8, 117.6, 85.4, 62.6, 46.3, 34.6, 26.1, 19.9, 15.3, 11.9, 100

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2. Run a 2-wire cable from the sensor to the thermostat.

CAUTION

Do not run the wire along side line voltage (120 VAC) or higher lines as this can cause erratic readings.

3.Take a resistance measurement before connecting to the ODT and CIR GND terminals to verify the sensor is properly installed. Measure the wires at the thermostat to account for wire splices.

•Use an ohmmeter to measure the resistance (kΩ) of the sensor. The resistance reading will depend on the outdoor temperature (see table).

4.Wire the sensor to the thermostat (see Figure 7).

• Strip 1/4" of insulation from the two sensor wires.

•Connect the sensor wires to the ODT and CIR GND terminals of the thermostat. The wiring is not polarity sensitive, so either wire can be connected to either thermostat terminal.

OUTDOOR TEMPERATURE (°F)	RESISTANCE (kΩ)
-30	230.6
-20	163.8
-10	117.6
0	85.4
10	62.6
20	46.3
30	34.6
40	26.1
50	19.9
60	15.3
70	11.9
80	9.4
90	7.4
100	5.9

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Contents Instructions Table of Contents Heat Pumps Only Thermostat StartupSafety Instructions Model 8570 Specifications Two-Stage Furnace/AC Wire RequirementsRadiant 1st Stage Heat Single-Stage Heat Pump Two-Stage Heat PumpKeep the thermostat 18 from an outside wall Select a Mounting LocationOpen 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 Figure163.8 230.6117.6 85.4IDS 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 Troubleshooting Cooling Operation Thermostat does not call for coolingTo Cool and make a call for cooling To Emergency Heat and make a call for heat Check Emergency Heat Operation Heat Pumps OnlyDifferential Customize the Application SettingsProgressive Recovery Display will show the ADV. Settings MenuOffset Range is 0F to 40F Balance Points Heat Pumps onlyInput Dealer Contact Information To delete a character, press the Back buttonTo delete a number, press the Back button Blower Extension for Humidity Control Press the Menu button DP #10006198 B2203358A BOX 1467 MADISON, WI