Aprilaire S86N MU Multi Stage Universal Thermostat Instruction Manual

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HEATING  

Thermostats  

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72  

SAFETY & INSTALLATION  

INSTRUCTIONS  

Model S86N MU  

Multi-Stage Universal Thermostat  

Model S86N MUPR  

Multi-Stage Universal Thermostat with IAQ  

READ AND SAVE THESE INSTRUCTIONS  

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General	Details
Name	Aprilaire S86N MU Multi Stage Universal Thermostat Instruction Manual
Make	Aprilaire
Language	English
Filetype	PDF (Download)
File size	0.37 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Aprilaire

Aprilaire S86N MU Multi Stage Universal Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Heating Thermostats Safety & installation instructions Model S86N MU Multi-stage universal thermostat Model S86N MUPR Multi-stage universal thermostat with IAQ Read and save these instructions
• Page 2: Installation location recommendations include mounting the thermostat on an interior wall in a frequently occupied space, approximately 5 feet above the floor. The thermostat should not be mounted behind doors, in corners, or in direct sunlight. It is advised to keep the thermostat at least 18 inches from outside walls. The installer setup wizard and settings are crucial for proper configuration. Wiring diagrams are provided for various system types, including single and multi-stage heat/cool systems. Indoor air quality system settings are specific to the S86N MUPR model. Error codes and troubleshooting information are essential for diagnosing issues. The document includes a quick reference to controls and display features. Specifications for the thermostat are detailed in the manual. Tables for HVAC installer system settings, humidifier, dehumidifier, and air cleaning system settings are included.
• Page 3: Outdoor temperature sensor is included with S86N MUPR only. The outdoor sensor must be enabled in the installer setup menu. Heat pump models can utilize the outdoor temperature for effective heating. When the outdoor temperature is lower than the Low Balance Point, only auxiliary heating will be used. When the outdoor temperature is higher than the High Balance Point, only the heat pump will be used. Indoor air quality functions can use the outdoor temperature sensor for various controls. The sensor can control humidification set point to prevent condensation. Ventilation can be locked out based on high and/or low outdoor temperatures. The outdoor temperature sensor should be mounted on the side of the building out of direct sunlight. It should be installed above the snow line and at least 3 feet away from exhaust vents and condensing lines.
• Page 4: Remote temperature sensor can be used for control if the thermostat is to be mounted in a concealed location or averaged with the thermostat sensor to control a large space. An 8051 flush mount or 8053 surface mount remote temperature sensor can be attached to the T1 and T2 terminals. The remote sensor must be enabled in the installer set-up menu and will override or be averaged with the thermostat’s internal temperature sensor. Remote temperature sensor should be mounted on an interior wall, approximately 5 feet above floor, and at least 18” from outside wall. Do not mount remote sensor behind doors, in corners, or in direct sunlight. Avoid mounting the sensor near lighting fixtures or appliances that give off heat. Do not place the sensor on an outside or unconditioned area wall. It should not be located in the flow of a supply register, in stairwells, or near outside doors. Avoid mounting on a wall with concealed pipes or ductwork. Do not position the sensor near 120 VAC lines.
• Page 5: Thermostat mounting involves removing the rear mounting plate. The thermostat is powered from 24VAC and maintains the clock for 2 hours in case of power loss. It has a memory backup that saves settings during power interruptions. The thermostat can be reset to factory defaults from the installer settings menu. To install, pull wires through the opening on the back of the rear mounting plate. Position and level the mounting plate on the wall and mark hole locations. Use supplied self-drilling anchors for drywall installation. Seal wire entry holes to prevent drafts affecting temperature readings. Ensure power at the HVAC equipment is off before proceeding with installation.
• Page 6: Wiring diagrams First stage heat (conventional) / first stage auxiliary (heat pump) First stage cooling (conventional) / first stage compressor (heat pump) Dashed lines represent wiring for multi stage systems only System fault indicator (optional) (heat pump only) Second stage heat (conventional) / second stage auxiliary (heat pump) Second stage cooling (conventional) / second stage compressor (heat pump) Outdoor/remote temperature sensor Indoor air quality control output (S86N MUPR only) Jumper between RC & RH is used in single transformer systems
• Page 7: Single and multi-stage heat pump configurations are illustrated. Wiring diagrams for single and multi-stage systems are provided. Dashed lines indicate wiring for multi-stage systems only. Transformers are used in both single and multi-stage heat/cool systems. Air handler connections are detailed in the diagrams. Outdoor unit connections are specified. Remote temperature sensor wiring is included. Different stages of heating and cooling are represented. Jumper removal is necessary for specific configurations. The document includes figures for visual reference.
• Page 8: Jumper settings for radiant and heat/cool systems are illustrated. The document includes figures for wiring configurations. Transformers are specified for different system types. Connections for 24V common and various terminals are detailed. The setup includes options for heat pumps and air handlers. Wiring for outdoor units and temperature sensors is outlined. Different configurations for furnaces and air conditioners are provided. The document references multiple models and their respective wiring. Specific terminal designations such as RH, RC, W, Y, and G are mentioned. Instructions for jumper placements are included for system functionality.
• Page 9: Indoor air quality equipment wiring diagrams (S86N MUPR only) Setup and testing Duct mounted evaporative humidifiers (Aprilaire series 400, 500, 600, 700) Dehumidifier (Aprilaire series 1800, e-series) Installer setup wizard and installer setting Installer menu options The first time the thermostat is powered up (or after a factory reset) it will enter the Installer Setup Wizard. All installer settings can be set through this process. HVAC advanced control (offsets, deadbands, staging, protection, etc.) Ventilation (Aprilaire series 8100)
• Page 10: HVAC installer system settings table outlines the system settings and their details. Default settings are shown in bold. The availability of some settings is dependent upon the value of other settings. Select number of compressor stages in heat pump mode. Select number of auxiliary heat stages in heat pump mode. Select number of heat stages in heat/cool mode. Equipment type related settings will return to defaults if this is changed. Select number of cool stages in heat/cool mode. Selects O or B reversing valve operation in heat pump mode. Non-programmable hides all scheduling features. Selects how the external temperature sensor terminals are being used. Selects auxiliary type in heat pump mode.
• Page 11: HVAC installer system settings Factory default setting and setting range Advanced HVAC settings Auto changeover mode deadband Minimum time between heating and cooling calls Enables or disables progressive recovery Field adjustment of controlling temperature sensors Internal RH sensor increases or decreases displayed RH% Minimum on time for heating and cooling Enable or disable auto changeover mode
• Page 12: HVAC installer system settings provide essential configurations for optimal performance. Factory default settings and their ranges are crucial for system adjustments. The outdoor temperature high balance point affects equipment staging speed. High balance point temperature is set at 65°F (14.5°C) with a range of 0 to 80°F (-18 to 22°C). Differentials for first, second, third, and fourth stages are set at 1°F (0.5°C) with a range of 1 to 9°F (0.5 to 4.5°C). The low balance point temperature is set at 20°F (-8°C) with a range of 0 to 60°F (-18 to 12°C). Service HVAC reminder settings can be enabled or disabled. Accumulation of difference from setpoint over time influences staging determination. Stage rate allows selection of months between HVAC service reminder messages. The system settings include options for enabling or disabling high and low balance points.
• Page 13: Indoor air quality system settings tables (S86N MUPR only) The following tables contain the indoor air quality system settings and their details. Default settings are shown in bold. The availability of some settings is dependent upon the value of other settings. The use of outdoor temperature data enables additional indoor air quality functionality. Select the maximum heating set point temperature allowed. Select the minimum heating set point temperature allowed. Please refer to the owner’s manual for further information about thermostat features. Select the maximum cooling set point temperature allowed. A humidifier can only be installed if ventilation is not installed and dehumidifier control is not set to whole home. Selects whether a humidifier is installed. Yes/On HVAC is used for applications where the humidifier is installed on the HVAC duct.
• Page 14: Humidifier system settings (S86N MUPR only) Factory default setting and setting range Selects when humidification is allowed to occur relative to heating and fan operation. Without Fan is only available when Humidifier Installed is set to Yes/Standalone. It allows humidification to occur without activating an HVAC fan. Selects how the external temperature sensor terminals (T1 & T2) are being used. Choose Outdoor for a wired outdoor sensor or Remote/Remote Average for a wired indoor sensor. Selects auto or manual mode. Auto mode controls humidity based on the humidity setting and outdoor temperature. Caution: Do not select Without Fan when the humidifier is installed on the HVAC duct. Without airflow, moisture can accumulate in the duct resulting in significant damage.
• Page 15: Humidifier system settings (S86N MUPR only) Dehumidifier system settings (S86N MUPR only) Factory default setting and setting range Dehumidifier control can only be set to Whole Home if ventilation and humidification are not enabled. Selects when the “Change Water Panel” message is displayed. Selects if a dehumidifier is installed. Determines the month the first “Change Water Panel” message is displayed. Selects if dehumidification is disabled during a cooling call. Determines the month the second “Change Water Panel” message is displayed. Selects the amount of overcooling that can occur for dehumidification.
• Page 16: Dehumidifier system settings (S86N MUPR only) Air cleaning system settings (S86N MUPR only) Enable or disable the dehumidifier service reminder message. Selects if an air cleaner is installed. Select number of months between dehumidifier service reminder messages. Enable or disable the change air filter message. Selects if dehumidification with the air conditioner is done in vacation mode. Sets the lowest temperature the air conditioner will cool to in vacation mode. Select the minimum difference between the humidifier and dehumidifier setpoints.
• Page 17: Fresh air ventilation system settings (S86N MUPR only) Manual adjustment of calculated minutes per hour. Ventilation can only be installed if humidification is not enabled. Selects if ventilation is installed. Selects how the external temperature sensor terminals are being used. Comfort setup has more lockout options. Selects the number of bedrooms to be used for the calculated minutes per hour. Selects the size of the home to be used for the calculated minutes per hour. Sets the ventilation indoor RH lockout limit. Displays the fresh air time calculated.
• Page 18: Fresh air ventilation system settings (S86N MUPR only) Low vent RH limit sets the ventilation indoor RH lockout limit. High mixing temperature is enabled if low vent RH limit is set to enabled. High vent temperature limit enables high ventilation temperature lockout limit. Low mixing temperature is enabled if HVAC fan with vent is set to yes with high and low limits. Low vent temperature limit sets low ventilation temperature lockout limit. Fresh air reminder allows enabling or disabling the service fresh air message. Selects if ventilation forces the fan on, available only if an outdoor sensor option is enabled. Recurrence for service fresh air messages can be set between 1 to 12 months.
• Page 19: System test menu is used to test a system after installation. The Installer Test can be accessed from the Installer Menu. All equipment outputs that are configured in the installer settings can be turned on and off for testing equipment. Minimum on and off times are not enforced while in this mode. The instructions below show how to enter the test mode and turn outputs on and off. Press Select to enter the equipment test. Use the UP ARROW to navigate. Press and hold for 3 seconds to unlock the test option. Use or to select equipment test.
• Page 20: Main menu includes various modes such as fan, hold, schedule, heat blast, humidifier, dehumidifier, ventilation, and air cleaning. The screen saver starts 45 seconds after inactivity, and pressing any button will wake the screen. Current time is displayed as 11:11 AM. Indoor temperature is shown as 70°F with an indoor relative humidity of 55%. Outdoor temperature is also displayed. Item availability is based on installed options and thermostat model.
• Page 21: Fan does not turn on in a call for heat. Heating is not displayed. Check system setting (fan control in heating) to ensure proper configuration. Change the system mode to heat and set the temperature above the current room temperature. Heat pump issues cool air in heat mode or warm air in cool mode. Make sure furnace door is closed securely. Check system setting (O/B operation) to ensure the reversing valve operation matches the heat pump. Heating system does not respond when heating appears on screen. Check for 24VAC at the equipment on the secondary side of the transformer. Humidifier does not operate in auto mode.
• Page 22: Error codes indicate issues with the thermostat's functionality. The thermostat attempts to recover every 10 minutes when in error mode. Indoor air quality control is available for specific models. Service reminders include air filter, humidifier, and dehumidifier notifications. Easy temperature control can override the program schedule at any time. Progressive recovery ensures proper room temperature at the start of a program event. Built-in compressor protection prevents damage to equipment. The thermostat features a color graphical display that is easy to read. Installer settings are user-friendly, requiring no codes. The system includes 7-day programmability and a system test mode.
• Page 23: Specifications include thermal and electrical details. The outdoor and remote temperature sensor has a maximum distance of 300 feet. Operating temperature ranges from 32° to 120°F (0° to 48°C). Shipping temperature ranges from -30° to 150°F (-34° to 65°C). Room temperature measurement display range is 32° to 99°F (0° to 40°C). Relative humidity operating range is 5% to 90% RH (non-condensing). Outdoor temperature measurement display range is -40° to 130°F (-40° to 55°C). Setpoint temperature range for heat is 40° to 90°F (4° to 32°C) and for cool is 50° to 99°F (10° to 37°C). Operating voltage is 24VAC (18–30VAC). Setpoint humidity range for humidification is 10% to 50% RH.