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Aprilaire Model 8570 manual

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Table of contents for the manual

  • Page 1

    Premium Pro grammab le The rmostat Safety & Installation Instructions Model 85 70 READ AND SA VE THESE INSTRUCTIONS[...]

  • Page 2

    T ABLE OF CONTENTS P AGE SPECIFICA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 WIRE REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . 2 1. SELECT A MOUNTING LOCA TION . . . . . . . . . . . 3 2. OPEN THE THERMOST A T . . . . . . . . . . . . . . . . . 4 3. MOUNT THE THERMOST A T BASE TO THE WALL . . . . . . . . . . . . .[...]

  • Page 3

    P AGE 7. OPTIONAL – INST ALL AN AUTOMA TIC HUMIDIFIER CONTROL (AHC) . . . . . . . . . . . . . 19 8. OPTIONAL – INST ALL AN INDOOR TEMPERA TURE SENSOR . . . . . . . . . . . . . . . . . 21 9. THERMOST A T ST ARTUP . . . . . . . . . . . . . . . . . 23 V erify Outdoor T emperature Sensor . . . . . . . . . . 24 Check Fan Operation . . . . . . . . . [...]

  • Page 4

    WARNING 1. 120 V olts may cause serious injury from electrical shock. Disconnect electrical power to the HVAC equipment before starting installation. This thermostat is not a 120-volt (line voltage) device. 2. Improper installation may cause serious injury from electrical shock. This product must be installed by a qualified heating and air conditio[...]

  • Page 5

    - 1 - MODEL 8570 SPECIFICA TIONS Electrical Thermostat V oltage: 24-volts ± 20% AC or DC T otal Load Current: 2A Single Output Load Current: 1A Solid State Output Residual Current: Less than 5 mA V oltage Drop at Solid State Outputs: Less than 1-volt Thermal Operating Range: 32°F – 99°F (0 C – 37 C) Display Accuracy: ±1°F between 60°F and[...]

  • Page 6

    - 2 - Figure 1 and the table show the number of wires that must be available at the thermostat in stand-alone thermostat systems (i.e. not as part of an Aprilaire ® Model 6504 Intelligent Zone System). Figure 1 shows optional connections to both an outdoor temperature sensor and an Aprilaire ® Automatic Humidifier Control (AHC), but only one or t[...]

  • Page 7

    - 3 - (1) SELECT A MOUNTING LOCA TION If installing the thermostat alone … • Mount on an interior wall, in a frequently occupied space. • Keep the thermostat 18" from an outside wall. • Mount the thermostat approximately 5 feet above the floor . Height requirements are different for compliance with the Americans with Disabilities Act ([...]

  • Page 8

    (2) OPEN THE THERMOST A T Use your hands to pull the thermostat face off of the base. Separate one side at a time. There are latches on either side of the thermostat. If needed, the thermostat can be pried from the base by inserting a flat-head screwdriver (see Figure 3 ). - 4 - CAUTION Loss of internal programs may result from static discharge to [...]

  • Page 9

    - 5 - (3) MOUNT THE THERMOST A T BASE TO THE WALL 1. Place the wire opening in the base over the wire entry hole in the wall. Level the base (for appearance only) and mark the screw locations. See Figure 4 . 2. Use the supplied screws and wall anchors to mount the thermostat to the wall. It is recommended that wall anchors be used for installation [...]

  • Page 10

    - 6 - (4) SET THE CONFIGURA TION DIP SWITCHES ON THE THERMOST A T CIRCUIT BOARD ON H/C GAS MUL TI 6504 HP ELEC AHC SINGLE Figure 5 There are four dip switches located on the back of the thermostat (on the circuit board) that must be set to properly configure the thermostat for operation with the equipment it is to control. Figure 5 shows the defaul[...]

  • Page 11

    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 HV AC equipment or standard zone control panel, continue with Step 5. - 7 - STOP! 6504 or AH[...]

  • Page 12

    - 8 - 1. Run a cable with the correct number of wires (see table) from the thermostat to the HV AC equipment. 2. Strip 1/4" of insulation from the end of the wires to be connected to the thermostat. 3. Strip no more insulation than is required to make a sound electrical connection at the HV AC equipment. 4. Wire the thermostat to the HV AC equ[...]

  • Page 13

    - 9 - Diagram 1: Single-Stage Furnace and AC[...]

  • Page 14

    - 10 - Diagram 2: T wo-Stage Furnace and AC[...]

  • Page 15

    - 11 - Diagram 3: T wo-Stage Roof T op Unit[...]

  • Page 16

    - 12 - Diagram 4: Boiler with AC[...]

  • Page 17

    - 13 - Diagram 5: Radiant Floor 1st Stage Heat with Furnace 2nd Stage Heat and AC[...]

  • Page 18

    - 14 - Diagram 6: Single-Stage Heat Pump[...]

  • Page 19

    - 15 - Diagram 7: T wo-Stage Heat Pump[...]

  • Page 20

    - 16 - (6) OPTIONAL – INST ALL AN APRILAIRE MODEL 8052 OUTDOOR TEMPERA TURE SENSOR Note: If an AHC is to be installed, do not wire an outdoor temperature sensor– see Step 7. The AHC uses its own outdoor temperature sensor , which can be read by the thermostat. 1. Mount the outdoor temperature sensor (see Figure 6 ). • Locate on the North side[...]

  • Page 21

    - 17 - 2. Run a 2-wire cable from the sensor to the thermostat. 3. T ake 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 (k Ω ) of the sensor . The resistance readin[...]

  • Page 22

    CIR GND IDS ODT ZA ZB C Figure 7 - 18 -[...]

  • Page 23

    Note: The AHC uses its own outdoor temperature sensor , which is read by the thermostat. If an AHC is to be installed, do not wire an outdoor temperature sensor to the ODT terminal of the thermostat. 1. Mount the AHC and its outdoor temperature sensor . • Follow the directions provided with the AHC except do not mount the AHC temperature sensor i[...]

  • Page 24

    B2203201 Rev . B 24V BYP ASS I+ R I- POWER H C ODT T E S T / R E S E T 2 3 5 4 6 1 7 AUTOMA TIC MODE O F F N O R M A L OFF C AB Figure 8 AHC must be powered by a continuous supply – do not wire to furnace accessory terminals. - 20 -[...]

  • Page 25

    1. Mount the indoor temperature sensor . • Locate the sensor as you would locate a thermostat. • Maximum wire length from sensor to thermostat is 300 feet. • Follow the installation instructions provided with the sensor . 2. Run a 2-wire cable from the sensor to the thermostat. 3. T ake a resistance measurement before connecting to the IDS an[...]

  • Page 26

    - 22 - CIR GND IDS ODT ZA ZB C Figure 9[...]

  • Page 27

    - 23 - (9) THERMOST A T ST ARTUP – ST AND ALONE APPLICA TIONS EQUIPMENT ST A TUS OUTDOOR TEMPERA TURE ROOM TEMPERA TURE MESSAGE CENTER SETPOINTS UP/DOWN BUTTONS MUL TI-FUNCTION BUTTONS[...]

  • Page 28

    NOTE: Refer to the Owner ’ s Manual for thermostat operating instructions. 1. PLACE THE THERMOST A T ON THE BASE. 2. TURN ON POWER TO THE HV AC SYSTEM. • The display will show the Aprilaire screen for approximately 5 seconds (up to 10 seconds if installed as part of a Model 6504 Intelligent Zone System). • After this initial screen the thermo[...]

  • Page 29

    Symptom Cause Miswiring – Check wire colors to verify I- at AHC is connected to I- at thermostat and I+ is connected to I+. No RH display , no outdoor AHC power source – When wired to the Model 8570 thermostat, the AHC temperature display must be wired to a continuously ON power source. Use voltmeter to verify presence of 24V AC (nominal) at AH[...]

  • Page 30

    - 26 - 6. CHECK HEA TING OPERA TION Notes: 1. T o avoid the minimum off times during system checkout, always start and end the check out procedure in the OFF mode. 2. Do not operate heat pumps in the heating mode at high outdoor temperatures for extended periods of time. • Set the thermostat to the OFF mode. • Set the thermostat to the HEA T mo[...]

  • Page 31

    Symptom Cause Thermostat does not call for heat Minimum-off times. Change the mode to OFF first, then change the mode to HEA T 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. Auxiliary Heat does not come on High Balance point limit – set balance point hig[...]

  • Page 32

    - 28 - 7. CHECK COOLING OPERA TION Notes: 1. T o avoid the minimum off times during system checkout, always start the check out procedure in the OFF mode. 2. Do not operate air conditioning at low outdoor temperatures. Refer to equipment manufacturer ’ s recommendations for safe operating temperatures. • Set the thermostat to the OFF mode. • [...]

  • Page 33

    - 29 - 8. CHECK EMERGENCY HEA T OPERA TION (Heat Pumps Only) Notes: 1. T o avoid the minimum off times during system checkout, always start the check out procedure in the OFF mode. • Set the thermostat to the OFF mode: • Set the thermostat to the EMERGENCY HEA T (EMERG) mode: – The B terminal will energize when in the Emergency Heat mode. •[...]

  • Page 34

    - 30 - 1. DIFFERENTIAL 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 . If the second stage differenti[...]

  • Page 35

    2. OFFSET All thermostats are factory calibrated to be accurate to within ±1° of true temperature. An offset is available to allow for agreement with field temperature measuring instruments. The value set will be added to the temperature sensed by the thermostat. The result will be displayed on the thermostat and will be used as the control value[...]

  • Page 36

    - 32 - 4. BALANCE POINTS (HEA T PUMPS ONL Y) This feature is only available when the thermostat has been configured to operate heat pumps (see SET THE CONFIGURA TION DIP SWITCHES on page 6) and only when an outdoor temperature is available to the thermostat. Outdoor temperature can come from an AHC or from an outdoor temperature sensor . The low ba[...]

  • Page 37

    5. INPUT DEALER CONT ACT INFORMA TION During thermostat operation, the two multi-function buttons are labeled INFO and MENU. When the INFO button is pressed, the thermostat will display the humidity and temperature sensed by the AHC (if an AHC has not been installed the Aprilaire logo screen will appear), then the thermostat will display the thermo[...]

  • Page 38

    - 34 - 6. BLOWER EXTENSION FOR HUMIDITY CONTROL If the heating equipment has not run long enough to allow the humidifier to meet the humidity demand, the thermostat will continue the blower after a heat call. One second before the thermostat turns off the heating terminal(s), the fan terminal will be energized thus extending blower operation. If th[...]

  • Page 39

    7. MONITORS – AIR FIL TER, SERVICE HUMIDIFIER, UV LAMP , SERVICE HV AC The thermostat monitors time and can display scheduled reminders for the user to service their humidifier , change their filter and UV lamps, and to remind the user to schedule an HV AC system maintenance check. All monitors are strictly time based, so setting a filter monitor[...]

  • Page 40

    DP #10006198 B2203358A Printed in U.S.A. P .O . BO X 1467 • MADISON, WI 53701-1467[...]