American Standard NEXIA Silver 724 Instruction Manual

Nexia Smart Home
Comfort System
Customer Service:
For HVAC related
issues, contact your
servicing dealer
ÎNOTE: A 24 Volt
common and hot
wire MUST be
connected to
the Silver 724 for
operation.
Silver 724
Touchscreen
Comfort Control
Model ACONT724AS42DA
User Guide and Installation Instructions
11-HD16D1-1E-EN
Contents
User Guide
Features ............................................................................................................................. 2
Operation............................................................................................................................ 3
User settings....................................................................................................................... 4
Schedules........................................................................................................................... 5
Display settings .................................................................................................................. 5
Sensor settings................................................................................................................... 5
WiFi settings ....................................................................................................................... 6
Nexia settings ..................................................................................................................... 6
Installer settings.................................................................................................................. 7
Test Mode ........................................................................................................................... 7
Reminders .......................................................................................................................... 8
Restore Defaults................................................................................................................. 8
About .................................................................................................................................. 8
Clean Screen...................................................................................................................... 8
Nexia Mobile App Instructions ............................................................................................ 9
Installer’s Guide
Product Specications ..................................................................................................... 16
Installation and Wiring ..................................................................................................... 17
Physical Location ............................................................................................................. 17
Field Wiring Diagrams ...................................................................................................... 18
Remote Temp Sensors ..................................................................................................... 35
Troubleshooting................................................................................................................ 37
FCC/IC notice ................................................................................................................... 38

211-HD16D1-1E-EN
• WiFi comfort control
• Remote access via smartphone, tablet, or P.C.
(requires a NexiaTM Smart Home Comfort System account)
• Interactive 4.3” black & white touchscreen
• 7 Day programmable, 4 schedules/day
• Built in humidity sensor with RH display
• Filter, maintenance, humidier service reminders
• Remote temperature sensing option (1 indoor/1 outdoor)
• Auxiliary & compressor heat lockouts
• Dehumidication (over cooling)
• Enhanced dehumidication (cooling)
• Adjustable variable speed fan settings (pwm)
• Energy Savings Mode (ESM)
• Screen lock
• Upgradable rmware (requires a Nexia™Smart Home Comfort System account)
• Service test modes
• Humidier control
Silver 724 Product Specications
Silver 724 Features
Specication Description
Product Model: ACONT724AS42DA
Product: Silver 724 HVAC System comfort control. WiFi communications enabled.
Size: 5.75” wide x 3.5” height x 1” depth
Display: Fixed Segment LCD, 4” x 2.25”, with 17 character alpha numeric display
Touchscreen: Yes
Backlight: Yes, White, Controllable, on, off, timeout
Power: 24VAC from HVAC System
HVAC System Type: Standard (gas/electric), Heat Pump, or Dual Fuel
Heat/Cool Stages: Up to four stages of heat/two stages cool
PWM Output (BK) Variable speed motor control
Heat Pump Switchover valve: Selectable change over with cool or with heat
Auxiliary Contact Humidier, Ventilation or Dehumidier control
Communications: WiFi
Memory: Non-volatile
Date/Time: 12 hour super capacitor backup
Time is automatically updated if the control is connected to Nexia Smart Home
Comfort System
SILVER 724 USER GUIDE

3
11-HD16D1-1E-EN
SILVER 724 USER GUIDE
The Silver 724 Comfort Control provides typical operation of a forced air heating and cooling HVAC system. It also
features WiFi capability for remote control and Nexia Smart Home Comfort System connectivity.
Normally, the Comfort Control displays the Home Screen as shown above.
Item Description Notes
Clock Display The current time is displayed in the upper left corner
of the main screen. The time will blink when the clock
has not been set.
See TIME/DATE for more information. If the control is
connected to Nexia Smart Home Comfort System the
clock will be updated by the Nexia portal.
Dynamic Labels and Func-
tion Control Buttons
The buttons are dened by the dynamic labels in each
button. As you navigate through menus, the labels for
the buttons will change.
Setpoint Display and Set-
point Up/Down Buttons
The current heat or cool setpoint is displayed. These
setpoints may be set using Nexia Smart Home
Comfort System, the Control’s internal schedule, or
by pressing the Setpoint Up/Down buttons. Pressing
the setpoint button changes the setpoint screen. The
current mode is displayed at the top of the screen.
Adjust the setpoint by pressing the up or down arrows.
To change setpoint mode press the MODE button.
The setpoints will push each other if they are adjusted
to within the minimum heat/cool separation setting.
This is normally 3 degrees.
Temperature Display The Comfort Control displays the current temperature
as sensed by the internal temperature sensor.
The internal temperature sensor can be adjusted as
necessary.
Menu Button Button used to access other Comfort Control menus
System Mode Button Button used to change the system mode Off: System off
Heating: Heating only
Cooling: Cooling only
Auto: Heating/Cooling as necessary
EM Heat: Heat Pump Emergency Heat, Compressor
Disabled, Indoor Heat only
Fan Mode Button Button used to change the fan mode Auto: Fan on when cooling/heating is necessary
On: Fan constantly on
Circ: Fan on for a user-selected number of minutes
per hour
Schedule Mode Button Button used to change the schedule mode
The default mode is HOLD which disables scheduling.
Hold: System maintains the current temperature
setpoints. Schedules are disregarded.
Run: Run the system schedule
Energy Saving Mode (ESM): Run schedule
using the ESM Setpoints
Manual setpoint changes while in Run Schedule
mode will only last until the next schedule period.
Operation
PM
Fan
Cooling
Menu SchedMode
Hold Cool
Auto
F
:

411-HD16D1-1E-EN
THERMOSTAT
Setting Range / Sub Setting Description / Range of Sub Settings
Temperature Scale [Fahrenheit], Celsius Select the temperature display scale
Max Heat Setpoint 55 - [90] Degrees Select the highest heating setpoint allowed
Min Cooling Setpoint [60] - 99 Degrees Select the lowest cooling setpoint allowed
Time/Date* Set Hour 1 - 12 AM, 1 - 12 PM [12PM]
Set Minutes 0 - 59 [0]
Day of Week [Sun], Mon, Tue, Wed, Thr, Fri, Sat
Year [2013] - 2113
Month [Jan], Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Date [1] - 31
DST Enable [Yes], No
Continuous Fan Airow* 35% - 100% [50%] Select the desired fan speed when the Fan Mode selected is Continuous
(variable speed blower required). Only available if ID Fan Type = Variable.
Fan Circulate On Time [10] - 55 minutes Select the desired amount of time the fan will cycle per hour when the Fan
Mode selected is Circ
Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.
User Settings allow the user to customize various settings on the SIlver 724 control. To access User Settings simply
press the Menu button once and “User Settings” will be displayed. To enter the User Settings menu, press the Select
button, then use the Next button to navigate through the options below. The default setting will be shown in brackets.
After each selection press the Done button to save changes. Certain menu selections, which are marked by an asterisk
( * ), may or may not be present depending on other menu settings.
The following is a guide of the menu options available by pressing the Menu button. Certain menu selections, which
are marked by an asterisk ( * ), may or may not be present depending on other menu settings.
* Only appears as a menu item if Dehumidify is set to Yes, Aux Relay is set to Dehumidier, or Aux Relay is set to
Humidity.
USER SETTINGS
HUMIDITY *
MENU OPTIONS
HUMIDITY
Setting Range Description
Cooling RH Target* 30% to 60% [50%] Select the desired indoor relative humidity during cooling mode. Dehu-
midication must be enabled in the Installer Settings for this option to be
available.
Heating RH Target* 10% to 45% [40%] Select the desired indoor relative humidity during heating mode.
Humidication must be enabled in the Installer Settings for this option to
be available.
Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.
SILVER 724 USER GUIDE

5
11-HD16D1-1E-EN
CALIBRATE SENSORS
Setting Range Description
Sensor Cal +/- 7 degrees (F or C) [0 deg] Calibrate the internal temperature sensor (1˚ in F = 2˚ in C)
Remote Sensor Cal* +/- 7 degrees (F or C) [0 deg] Calibrate an attached remote sensor
ODT Sensor Cal* +/- 7 degrees (F or C) [0 deg] Calibrate an attached outdoor sensor
RH Cal +/- 7 % [0 %] Calibrate the internal humidity sensor
Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.
DISPLAY
Setting Range Description
Backlight On 0 - [100] percent Select the screen brightness level when the backlight is lit
Backlight Off [0] - 100 percent Select the screen brightness level when the backlight timeout expires
Display Lock [Unlocked], Display lock Select security level
• Unlocked - Enables selection of all menus and settings
• Display Lock - Disables selection of all menus and settings
Note: When Display Lock is selected a lock icon will appear next to the
up arrow.
Note: To disable Display Lock, press and hold the Menu button 5 seconds
until the lock icon disappears.
Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.
USER SETTINGS continued
SCHEDULES
Setting Range / Sub Settings Description / Range of Sub Settings
ESM Heat Setpoint* 55 - 90 degrees [62] Select the desired Heating Setpoint when ESM (Energy Savings Mode)
is selected
ESM Cooling Setpoint* 60 - 99 degrees [85] Select the desired Cooling Setpoint when ESM is selected
Edit Schedule* Select Day (use Back/Next)
Wake Period
This section is done for each day
Set Time [6:00 am]
Heat Setpoint 60˚- 90˚ [70]
Cool Setpoint 60˚- 90˚ [78]
Day Period Set Time [8:00 am]
Heat Setpoint 60˚- 90˚ [62]
Cool Setpoint 60˚- 90˚ [85]
Eve Period Set Time [6:00 pm]
Heat Setpoint 60˚- 90˚ [70]
Cool Setpoint 60˚- 90˚ [78]
Night Period Set Time [10:00 pm]
Heat Setpoint 60˚- 90˚ [62]
Cool Setpoint 60˚- 90˚ [78]
Copy Schedule* Copy from (use Back/Next)
Select day to copy
Copy (day selected) To
Copy selected day to current schedule period.
Smart Recovery* Yes, [No]
Once all selections have been made, press the Done button to exit and return to menu. Press Next to navigate to the next setting.
The following is a guide of the menu options available by pressing the Menu button. Certain menu selections, which
are marked by an asterisk ( * ), may or may not be present depending on other menu settings.
SILVER 724 USER GUIDE