AprilAire 8570 - Manuals

(2) OPEN THE THERMOSTAT Use your hands to pull the thermostat face off of the base. Separate one side at a time. There are latches oneither side of the thermostat. If needed, the thermostat can be pried from the base by inserting a flat-head screwdriver (see Figure 3 ). - 4 - - 5 - CAUTION Loss of i...

IDS ODT APRILAIRE MODEL 8570 THERMOSTAT 1ST STG COOL AIR CONDITIONER Y1 C FAN RELAY 1ST STAGE HEAT R FURNACE C G Y1 W1 1ST STAGE COOL L1 L2 120 VAC 24 VAC GND ZA ZB I+ I- 6504 CONNECTION BO Y2 Y1 G RC R RH W1 W2 C AHC CONNECTION ELECT/GAS - SET TO ELECT FOR ELECTRIC HEAT, SET TO GAS FOR FOSSIL FUEL ...

APRILAIRE MODEL 8570 THERMOSTAT 1ST STG COOL AIR CONDITIONER Y1 C FAN RELAY 1ST STAGE HEAT R FURNACE C G Y1 W1 1ST STAGE COOL L1 L2 120 VAC 24 VAC HEAT RELAY R RADIANT FLOOR HEAT C W L1 L2 120 VAC 24 VAC 1 2 4 5 7 8 W R Y 24V COM E/W2 Y O 3 6 9 MODEL 8024 24-VOLT RELAY PACK (not supplied) SUPPLIED J...

APRILAIRE MODEL 8570 THERMOSTAT FAN RELAY 1ST STAGE AUX . HEAT R INDOOR UNIT - AIR HANDLER C G Y1 W1 W2 L1 L2 120 VAC 24 VAC 2ND STAGE AUX . HEAT L O Y1 W1 C R 1ST STAGE COMP. REV. VALVE DEFROST SERVICE OUTDOOR UNIT - HEAT PUMP SUPPLIED JUMPER COMPRESSOR ZA ZB I+ I- 6504 CONNECTION BO Y2 Y1 G RC R R...

APRILAIRE MODEL 8570 THERMOSTAT FAN RELAY 1ST STAGE AUX . HEAT R INDOOR UNIT - AIR HANDLER C G Y2 Y1 W1 W2 L1 L2 120 VAC 24 VAC 2ND STAGE EMER. HEAT L O Y2 Y1 W1 C R 1ST STAGE COMP. 2ND STAGE COMP. REV. VALVE DEFROST SERVICE OUTDOOR UNIT - HEAT PUMP SUPPLIED JUMPER 1ST STAGE COMP. 2ND STAGE COMP. ZA...

- 19 - - 18 - (7) OPTIONAL – INSTALL AN APRILAIRE MODEL 8052 OUTDOOR TEMPERATURE SENSOR Note: If an ADHC is to be installed, do not wire an outdoor temperature sensor– see Step 8. The ADHC uses its own outdoor temperaturesensor, which can be read by the thermostat. 1. Mount the outdoor temperature s...

Figure 8 - 21 - - 20 - 2. Run a 2-wire cable from the sensor to the thermostat. 3. Take a resistance measurement before connecting to the ODT and CIR GND terminals to verify the sensor isproperly installed. Measure the wires at the thermostat toaccount for wire splices. • Use an ohmmeter to measure ...

To Humidifier Automatic Digital Humidifier Control Outdoor Temperature Sensor Note: ADHC must be powered by a continuous supply - do not wire to furnace accessory terminals. Transformer Model 8570 Thermostat R C A B ODT Cf W/G H Figure 9 - 23 - Note: The ADHC uses its own outdoor temperature sensor,...

NOTE: Refer to the Owner’s Manual for thermostat operating instructions. 1. PLACE THE THERMOSTAT ON THE BASE. 2. TURN ON POWER TO THE HVAC SYSTEM. 3. THERMOSTAT SET UP – HEAT ONLY OR COOL ONLY APPLICATIONS Skip this step if the thermostat is to control bothheating and cooling. 1. Make sure the therm...

Symptom Cause Miswiring – Check wire colors to verify A at ADHC is connected to ZA at thermostat and B is connected to ZB. No RH display, no outdoor ADHC power source – When wired to the Model 8570 thermostat, the ADHC temperature display must be wired to a continuously ON power source. Use voltmete...

Symptom Cause Thermostat does not call for heat Minimum-off times. Change the mode to OFF first, then change the mode to HEAT and make a call for heat. Heating does not come on at all RH terminal not connected – see wiring diagrams. Heating equipment power not on. High Balance point limit – set bala...

- 32 - - 33 - Symptom Cause Thermostat does not call for cooling Minimum-off times. Change the mode to OFF first, then change the mode to COOL and make a call for cooling. Cooling does not come on at all RC terminal not connected – see wiring diagrams. Cooling equipment power not on. Heat comes on i...

- 34 - - 35 - Symptom Cause Thermostat does not call for heat Minimum-off times. Change the mode to OFF first, then change the mode to EMERGENCY HEAT and make a call for heat. Emergency Heat does not come on at all RH terminal not connected – see wiring diagrams. Heating equipment power not on. Fan ...

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