Aprilaire 8120X Installation & Operating Instructions Manual
Digital ventilation controller
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- Installation and operation manual (11 pages) ,
- Installation & operating instructions manual (24 pages)
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Summary of Contents for Aprilaire 8120X
- Page 1 INSTALLATION & OPERATING INSTRUCTIONS Model 8120X Ventilation Digital Ventilation Controller Installed By: Installer Phone: Date Installed: Product Info & Digital Manual CODE MIN/ PLEASE LEAVE THIS MANUAL WITH THE PRODUCT OWNER...
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Page 2: Table Of Contents
TABLE OF CONTENTS Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Package Contents . -
Page 3: Safety Instructions
SAFETY INSTRUCTIONS WARNING 1 . 120 volts can cause serious injury from electric shock . Disconnect electrical power to the HVAC system before proceeding . 2 . Sharp metal edges can cause serious injury from cuts . Use gloves when cutting openings in sheet metal . NOTICE 1 . -
Page 4: Package Contents
PACKAGE CONTENTS 90-2261 1 - Control 5 - #8 x 5/8” Hex Head Sheet Metal Screw (2) 2 - Wall Plate 6 - #8 x 1/2” Pan Head 3 - Duct Board Bracket Type 25 Screw (2) 4 - Outdoor Temp Sensor 7 - Installation Manual SPECIFICATIONS Operating Temperature Range... -
Page 5: Mounting The Controller And Outdoor Temperature Sensor
MOUNTING THE CONTROLLER AND OUTDOOR TEMPERATURE SENSOR MOUNTING THE CONTROLLER TO THE RETURN DUCTWORK SHEET METAL INSTALLATION 1 Remove the wall plate from the control and put the rest of the control in a safe location until after wiring is completed 2 Mark the location of the wall plate sensor hole on the duct Use a step- drill bit to create a 5/8"... - Page 6 DUCT BOARD INSTALLATION 1 Take out the duct board mounting bracket, remove the wall plate from the control and put the rest of the control in a safe location until after wiring is completed 2 Cut a 5 75" x 5 25" rectangular opening in the return plenum Save the piece cut out to insulate the duct board bracket around the controller The display of the control will run parallel with the long dimension DO NOT MOUNT THE CONTROL IN A POSITION WHERE IT IS FACING DOWN...
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Page 7: Mounting The Controller In A Closet Return Plenum
MOUNTING THE CONTROLLER IN A CLOSET RETURN PLENUM NOTE: Do not mount directly in the path of the outdoor air Mount the control Remove the where it will sense the relative humidity of the return air 1 Use spacers or brackets to mount the controller to an interior wall surface or return plenum/duct surface that is at room temperature (i e do not mount to supply ductwork or to the air handler/furnace) to space the wall bracket a minimum of ½”... -
Page 8: Mounting The Outdoor Temperature Sensor
MOUNTING THE OUTDOOR TEMPERATURE SENSOR 1 Drill a 3/8" diameter hole in the duct of the fresh air inlet hood 2 Install the outdoor temperature sensor into the duct and use metal foil tape to secure it in place and seal the opening Run the wire toward the inside of the exterior wall 3 Secure ductwork to the inlet hood duct while allowing the wire of the sensor to extend outside of the insulation Tape and/or mastic the duct... -
Page 9: Wiring
FIGURE 3 (Model 8140NC or Model 8145NC), FIGURE 4 (Model 8142NC), FIGURE 5 (Model 8144NC) or FIGURE 6 (damper) (continued on page 12) FIGURE 1 – Wiring to Furnace THERMOSTAT OR ZONE PANEL MODEL 8120X DIGITAL VENTILATION CONTROL VENT R & C = 24VAC FURNACE Y = COOLING... -
Page 10: Wiring To Heat Pump
FIGURE 2 – Wiring to Heat Pump HEAT PUMP THERMOSTAT OR ZONE PANEL MODEL 8120X DIGITAL VENTILATION CONTROL Y W1 VENT R & C = 24VAC Y = COMPRESSOR HEAT PUMP W1 = 1st STAGE AUX. HEAT O = REV. VALVE, COOLING... -
Page 11: Wiring To Model 8142Nc Fresh Air Ventilator
FIGURE 4 – Wiring to Model 8142NC Fresh Air Ventilator MODEL 8120X DIGITAL VENTILATION CONTROLLER* * Outdoor Temperature is supplied by the control and is required VENT for optimal ventilation control. 24VAC VENT MODEL 8120X DIGITAL VENTILATION CONTROL FIGURE 5 – Wiring to Model... -
Page 12: Wiring To Model 6506 Damper
FIGURE 6 – Wiring to Model 6506 Damper VENT 24VAC MODEL 6506 DAMPER PROVIDED WITH MODEL 8126X 120VAC 24VAC, 10VA TRANSFORMER PROVIDED WITH MODEL 8126X (continued from page 9) 4 Route the wires into the channels in the back of the control to either the top or bottom of the control and snap the control... -
Page 13: Operation
OPERATION NOTE: The display will appear faint normally; the first press of any button will turn on the display at full power Shows the ventilation time setting (minutes/hr), mode of operation (Code or Comfort) and whether the HVAC fan has been turned on when ventilating Use for Use to override CODE... -
Page 14: Set Up Menu
SET UP MENU NOTICE Before setting up the control for use, the amount of ventilation air being delivered (CFM) by the installed ventilation system must be measured Hold for 5 seconds, then release Throughout the Set Up Menu, the buttons are used to change values, the Select button is used enter the value and move on to the next Set Up Menu item... - Page 15 Menu Item Values Description HP if wiring to a heat pump HP or HC HC if wiring to furnace and AC CODE # BEDROOMS HIGH Number of bedrooms – used to calculate required 1 – 10 continuous ventilation rate COMFORT HOUSE (FT Square footage –...
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Page 16: Test Mode
Menu Item Values Description Only available when bLnd is selected When the outdoor COMFORT HOUSE (FT OFF, 5°F less than °F temperature is below the setting, the HVAC fan will be Vent Low Temp turned on to mix (blend) outdoor air with indoor air for Limit to 55°F tempering MEAS REQ’D CONT CFM... -
Page 17: Rater/Inspector Verification
Test Sequence Description °F Shows outdoor temperature as measured by the sensor wired to the ODT HC % terminals If - - - - °F shows, no outdoor temperature has been installed tESt shows on the display, the green Fresh Air LED will light and either the damper will open or the power ventilator will turn on depending on what has been wired to the VENT terminals After 15 seconds, the HVAC fan will turn on if it has been wired and set up to... -
Page 18: Sequence Of Operation - "Code" Setting
SEQUENCE OF OPERATION – “CODE” SETTING The control will turn on ventilation with a heating, cooling or fan call for the set number of minutes during a one-hour cycle period • IF outdoor temperature is above the high temperature limit, ventilation will not occur with a call for cooling or fan call •... -
Page 19: Sequence Of Operation - "Comfort" Setting
automatically adjusts to 24-hours, the control will turn on ventilation to meet the requirements even if the temperature is outside of the set limits SEQUENCE OF OPERATION – “COMFORT” SETTING The control will turn on ventilation with a heating, cooling or fan call by the HVAC equipment, if the outdoor air temperature is within the high and low ventilation temperature limits and the indoor RH is within the high and low RH limits, for the set number of minutes during a one-hour cycle period... - Page 20 TABLE 1: Stet Code Explanation Correction External temperature Inspect the ODT sensor sensor was detected connection for loose or at start-up, but has broken wires If no issue failed when the found, follow the instructions control is configured for testing the ODT sensor to use it The resistance on page 22 If control will continue...
- Page 21 TABLE 1: Stet Code Explanation Correction Ventilator Measured conditions Ventilation should not occur or Fresh Air are outside when outdoor temperature Damper only programmed limits and humidity are outside operates in programmed limits If outdoor Test Mode conditions are confirmed within programmed limits, follow the instructions for testing the ODT sensor...
- Page 22 TABLE 2 Outdoor Resistance Temperature (°F) (kΩ) ±10 231 8 163 4 117 3 84 8 62 2 46 1 34 4 26 1 19 9 15 3 11 9 TESTING ODT SENSOR RESISTANCE Disconnect the ODT sensor leads from the control terminals and measure the resistance across the wires with an ohmmeter Confirm the reading with the temperature in TABLE 2 Reconnect the ODT sensor leads If the resistance value (+/- 10 kΩ) does not match the temperature value, replace the ODT sensor...
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Page 23: Limited Warranty
(5) year period and which is returned not later than thirty (30) days after said five (5) year period by you to either your original supplier or to AprilAire,... - Page 24 Manufacturing Use Only B2207176G • 61001433 • 11.22 © 2022 AprilAire | aprilairepartners.com | 800.334.6011 AprilAire reserves the right to change specifications without notice.
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