Aprilaire 8570 Premium Programmable Thermostat Instruction Manual

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Premium Programmable Thermostat  

Safety & Installation  

Instructions  

Model 8570  

READ AND SAVE THESE INSTRUCTIONS  

DP #10006198  

B2203358C  

997-040090-3  

Printed in U.S.A.  

P.O. BOX 1467 • MADISON, WI 53701-1467  

https://manual-hub.com/  

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	Aprilaire 8570 Premium Programmable Thermostat Instruction Manual
Make	Aprilaire
Language	English
Filetype	PDF (Download)
File size	0.57 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Aprilaire

Aprilaire 8570 Premium Programmable Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Premium programmable thermostat Safety & installation instructions Model 8570 Read and save these instructions
• Page 2: Specifications Wire requirements Select a mounting location Open the thermostat Mount the thermostat base to the wall Set the configuration dip switches on the thermostat circuit board Wire the thermostat to the HVAC equipment Check fan operation Check heating operation Check cooling operation
• Page 3: Safety instructions are crucial before installation. Read the installation manual before beginning installation of the Aprilaire 8570 thermostat. Thermostat voltage is 24-volts AC or DC. Disconnect electrical power to the HVAC equipment before starting installation. This thermostat is not a 120-volt device. Improper installation may cause serious injury from electrical shock. This product must be installed by a qualified contractor in accordance with NEC standards. Mercury is toxic and must be disposed of properly. Control range for heat is 40°F – 88°F. Control range for cool is 42°F – 90°F.
• Page 4: Wire requirements for thermostat installation include selecting an appropriate mounting location. The number of wires needed at the thermostat varies based on the system type. Standard 18-24 gauge thermostat cable is required for installation. The thermostat should be mounted on an interior wall, away from outside walls, and in accessible locations. Height requirements for mounting differ based on compliance with the Americans with Disabilities Act. Avoid mounting the thermostat in areas where operating temperatures may be exceeded, such as attics. Optional connections include an outdoor temperature sensor and an automatic humidifier control, but only one can be used at a time. The thermostat can be mounted to a vertical junction box. When connected to a Model 6504, only one four-wire cable is needed from the thermostat to the Model 6504. Avoid placing the thermostat near sources of heat or electrical interference.
• Page 5: Open the thermostat. Mount the thermostat base to the wall. Use your hands to pull the thermostat face off of the base. Level the base and mark the screw locations. Use the supplied screws and wall anchors to mount the thermostat to the wall. It is recommended that wall anchors be used for installation to drywall/sheet rock. Seal the wire entry hole(s) with caulk, drywall putty or insulation to prevent drafts. Avoid touching the circuit board and touch a grounded metal object before handling the thermostat. Drill a 3/16 hole for wall anchors. Minimize wire entry hole size and seal the hole to prevent temperature reading issues.
• Page 6: MULTI or SINGLE - When set to single, the second stage outputs (Y2 and W2) do not energize. GAS or ELECT - When set to ELECT, the fan terminal (G) will be energized on a call for heat. Set the configuration dip switches on the thermostat circuit board. Set to SINGLE for single-stage furnace/AC applications or single-stage compressor heat pump systems. Set to ELECT when the heat source is electric (such as strip heat). Set to MULTI if the furnace or air conditioner is two-stage or if the heat pump has a two-stage compressor. Set to GAS when the heat source is fossil fuel (oil, propane, natural gas). HEAT/COOL or HEAT PUMP - When set to HP the compressor terminal (Y1) is the first stage output for both heating and cooling. For heat pumps only, this switch sets whether the O/B reversing valve output is energized during a cooling call or heating call. If installing this thermostat as part of a Model 6504 Intelligent Zoned Comfort System, refer to the Model 6504 Installation Manual for wiring and checkout procedures.
• Page 7: Aprilaire model 8570 thermostat Wire the thermostat to the HVAC equipment. Disconnect electrical power to the furnace and air conditioner before starting installation. This thermostat is not a 120 volt (line voltage) device. Run a cable with the correct number of wires from the thermostat to the HVAC equipment. Strip 1/4 of insulation from the end of the wires to be connected to the thermostat. Wire the thermostat to the HVAC equipment according to the wiring schematic appropriate for your HVAC equipment. Set to electric for electric heat, set to gas for fossil fuel heat. Diagrams for various HVAC configurations are provided. Ensure proper electrical connections are made at the HVAC equipment.
• Page 8: Aprilaire model 8570 thermostat Supplied jumper Two-stage furnace Two-stage roof top unit (RTU) Configuration switch settings Set to electric for electric heat, set to gas for fossil fuel heat Connection for outdoor (ODT) and indoor (IDS) temperature sensors Two-stage air conditioner Diagram 2: Two-stage furnace and AC Diagram 3: Two-stage roof top unit
• Page 9: Remove RH prong from supplied jumper. Aprilaire model 8570 thermostat configuration switch settings. Set to electric for hot water coil heat, set to gas for radiant heat. Model 8024 24-volt relay pack (not supplied). Indoor air handler and outdoor (ODT) connections. Set to electric for electric furnace, set to gas for fossil fuel furnace. ODT temperature sensors. Event triggered output (ETO) for air conditioner. Diagrams for boiler with AC and radiant floor heating. Thermostat configuration settings.
• Page 10: Aprilaire model 8570 thermostat Supplied jumper Indoor unit - air handler Thermostat configuration switch settings Set to single for single stage heat pump Set to electric for electric auxiliary heat, set to gas for fossil fuel auxiliary heat O/B - set to “O” if heat pump reversing valve must be energized when cooling First stage compressor auxiliary heat setup Highlight the “auxiliary heat setup” option and press select Diagram: Single-stage heat pump with single-stage back up heat
• Page 11: Indoor unit - air handler Aprilaire model 8570 thermostat Configuration switch settings Optional – wire the event triggered output (ETO) Single/multi – set to multi for two stage heat pump Use only to control 24-volt loads Electric/gas - set to electric for electric auxiliary heat, set to gas for fossil fuel (dual fuel) auxiliary heat Turn on outdoor ventilation for programming periods of the day when the building is occupied and turn it off when unoccupied Have an electronic air cleaner turn on and off only when the building is occupied to reduce maintenance time/cost Diagram 8: Two-stage heat pump
• Page 12: To enable and program the relay, ensure the thermostat is in the OFF mode. Press and hold the designated buttons for 3 seconds to access the settings menu. Scroll down through the menu items and select programmable output. Select enable to view program event names and output status. For disabling, select disable to return to the settings menu. Mount the outdoor temperature sensor on the north, east, or west side of the building, avoiding direct sunlight. Use multi-function buttons to toggle between events and change the ON/OFF status. Press until DONE is highlighted, then choose to save or cancel the settings. Ensure the sensor is mounted above the anticipated snow line and away from exhaust vents. The maximum wire length from the sensor to the thermostat is 300 feet.
• Page 13: Run a 2-wire cable from the sensor to the thermostat. Do not run the wire alongside line voltage (120 VAC) or higher lines as this can cause erratic readings. Take a resistance measurement before connecting to the ODT and CIR GND terminals to verify the sensor is properly installed. Use an ohmmeter to measure the resistance (kΩ) of the sensor. The resistance reading will depend on the outdoor temperature. 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.
• Page 14: Optional – Install an automatic humidifier control (AHC). The AHC uses its own outdoor temperature sensor, which is read by the thermostat. Do not wire an outdoor temperature sensor to the ODT terminal of the thermostat if an AHC is to be installed. Run a 2-wire cable from the AHC to the thermostat. Connect the I- terminal of the AHC to the I- terminal of the thermostat. The temperature sensor must be mounted outside. The AHC must have constant power. Do not power the AHC through furnace accessory terminals. Verify proper operation of the AHC after completing the thermostat installation. Improper installation may cause serious injury from electrical shock.
• Page 15: Optional – Install an Aprilaire model 8051 flush mount or 8053 surface mount temperature sensor. Mount the indoor temperature sensor. Take a resistance measurement before connecting to the IDS and CIR GND terminals to verify the sensor is properly installed. Locate the sensor as you would locate a thermostat. Maximum wire length from sensor to thermostat is 300 feet. Use an ohmmeter to measure the resistance of the sensor. Follow the installation instructions provided with the sensor. Run a 2-wire cable from the sensor to the thermostat. Connect the sensor wires to the IDS and CIR GND terminals of the thermostat. Do not run the wire along side line voltage (120 VAC) or higher lines as this can cause erratic readings.
• Page 16: Thermostat setup involves setting the number of auxiliary heat stages. Refer to the owner's manual for thermostat operating instructions. For standalone applications, the thermostat can control up to three stages of heat in heat mode. Ensure the thermostat is in the OFF mode before starting the setup process. Access the advanced settings menu by pressing and holding specific buttons for three seconds. Select auxiliary heat setup if the thermostat is controlling heating and cooling. Verify the outdoor temperature sensor connection if an optional sensor is installed. An operational outdoor temperature sensor will display the outdoor temperature on the main display. Use the buttons to highlight options for one stage or two stage auxiliary heat. Return to the advanced settings menu and then exit to return to the operating display. The setup process includes verifying temperature setpoints for heat only or cool only applications.
• Page 17: Check fan operation. Verify AHC connection if optional Automatic Humidifier Control is installed. Ensure that the AHC has power and is functioning properly. The thermostat G terminal will energize and the system blower will start. Allow the fan to operate for no less than 40 seconds for accurate humidity readings. AHC must be wired to a continuously ON power source. Press the “INFO” button to display outdoor temperature and relative humidity. Check the red diagnostic light on AHC if it is not operating correctly. When the humidifier is operating, the message HUMIDIFIER ON appears. Wire an outdoor sensor to the AHC or thermostat for manual mode operation.
• Page 18: Check heating operation. Set the thermostat to the HEAT mode. With the O/B configuration setting in the B position (ON), the O/B terminal will be on in the Heat mode. To avoid the minimum on and off times during system checkout, always start and end the checkout procedure in the OFF mode. Raise the temperature setting above the room temperature to activate the desired stages of heating. Verify the correct outputs are on according to the configuration settings. Do not operate heat pumps in the heating mode at high outdoor temperatures for extended periods of time. Number of Auxiliary Heat stages not set correctly. Blower extension for humidifier operation should show HUMIDIFYING at the message center. Change position of ELECT/GAS dip switch for electric or fossil fuel systems.
• Page 19: Check cooling operation by setting the thermostat to the COOL mode. In the O/B configuration setting, the O/B terminal will be on in the Cool mode when in the O position and off in the B position. Always start and end the checkout procedure in the OFF mode to avoid minimum on and off times. Lower the temperature setting below room temperature to activate the desired stages of cooling. The mode display will change from COOL MODE to COOLING when the thermostat is calling for cooling. Verify the correct outputs are on according to the configuration settings. Do not operate air conditioning at low outdoor temperatures; refer to manufacturer recommendations. Check the O/B dip switch setting if cooling does not activate. Ensure proper wiring by checking wire colors at the thermostat and HVAC equipment. Set the thermostat to the OFF mode if heat comes on instead of cooling.
• Page 20: Check emergency heat operation (heat pumps only) Set the thermostat to the emergency heat mode. Troubleshooting – emergency heat operation With the O/B configuration setting in the B position (ON), the O/B terminal will be on in the emergency heat mode. To avoid the minimum on and off times during system checkout, always start and end the checkout procedure in the OFF mode. Raise the temperature setting above the room temperature to activate emergency heat. The mode display will change from “EHEAT MODE” to “HEATING”, which will flash when the thermostat is calling for heat. Change position of ELECT/GAS dip switch – ELECT for electric heat systems or to GAS for fossil fuel systems. The same outputs come on regardless of how these are set. Configuration settings for emergency heat stages. Outputs energized for 1st and 2nd stage emergency heat.
• Page 21: Differentials Use the ▲ or ▼ button to highlight “SET DIFFERENTIAL” and press the SELECT button. Determines the temperature above/below the temperature setting at which the heating or cooling equipment will turn on. For example, a heat temperature setting of 70°F with a differential of 2° will result in the equipment turning on and off to maintain the temperature between 68°F and 70°F. The default setting for the first stage and second stage differential is 1°. This thermostat can be configured as a programmable or non-programmable thermostat. Four choices are available: Non Programmable, Residential, 2-Residential, and 2-Business. The Program option in the menu is not available when the non-programmable setting is selected. In the program, there will be four scheduled temperature changes per day labeled Wake, Leave, Return, and Sleep. For heat pumps, the auxiliary heat differential(s) are set separately after the number of auxiliary heat stages is selected. In the program for businesses, there will be only two scheduled temperature changes per day labeled Occupied and Unoccupied.