Aprilaire S84N 1H1C Setup guide

READ AND SAVE THESE INSTRUCTIONS
Thermostats
SAFETY & INSTALLATION
INSTRUCTIONS
Model S84N 1H1C
Conventional 1 Heat / 1 Cool Thermostat
Model S84N SU
Single Stage Universal Thermostat
70
72
HEATING

TABLE OF CONTENTS
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation Location Recommendations . . .3
Outdoor Temperature Sensor
(optional with S84N SU only) . . . . . . . . . . . . . . . 4
Remote Temperature Sensor
(optional with S84N SU only) . . . . . . . . . . . . . . . 6
Thermostat Mounting . . . . . . . . . . . . . . . . . . . . . . 8
Power and Reset Options . . . . . . . . . . . . . . . . . . 9
Wiring Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
WIRING DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Single Stage Heat/Cool,
One Transformer (S84N 1H1C) . . . . . . . . . . . . . . 11
Single Stage Heat/Cool, (Ex: Boiler)
Two Transformer (S84N 1H1C). . . . . . . . . . . . . . 12
Single Stage Heat/Cool,
One Transformer (S84N SU) . . . . . . . . . . . . . . . 13
Single Stage Heat/Cool (Ex: Boiler),
Two Transformer (S84N SU). . . . . . . . . . . . . . . . 14
Single Stage Heat/Pump,
One Transformer (S84N SU) . . . . . . . . . . . . . . . 15
SETUP AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installer Setup Wizard
and Installer Setting . . . . . . . . . . . . . . . . . . . . . . . 16
HVAC Installer System Settings Table. . . . . .17
System Test Menu . . . . . . . . . . . . . . . . . . . . . . . . .23
QUICK REFERENCE TO CONTROLS
AND DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
THERMOSTAT FEATURES . . . . . . . . . . . . . . . . . . . . . . .30
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
INSTALLATION
INSTALLATION LOCATION RECOMMENDATIONS
Thermostat should be mounted:
• On an interior wall, in a frequently occupied space.
• Approximately 5 feet above oor.
• At least 18” from outside wall.
• Thermostat can be mounted to a vertical junction box.
Do not mount thermostat:
• Behind doors, in corners or other dead air spaces.
• In direct sunlight, near lighting xtures, or other appliances that give off heat.
• On an outside or unconditioned area wall.
• In the ow of a supply register, in stairwells, or near outside doors.
• On a wall with concealed pipes or ductwork.
32

OUTDOOR TEMPERATURE SENSOR (OPTIONAL WITH S84N SU ONLY)
Outdoor temperature can be measured by attaching the included 8052 sensor to the T1 and T2
terminals. The outdoor sensor must be enabled in the installer setup menu.
Heat pump models can use the outdoor temperature to effectively utilize the heat pump:
• When the outdoor temperature is lower than the Low Balance Point, the heat pump will be
locked out and only auxiliary heating will be used to provide heating.
• When the outdoor temperature is higher than the High Balance Point, the auxiliary heating will
be locked out and only the heat pump will be used to provide heating.
Outdoor temperature sensor should be mounted:
• On side of building out of direct sunlight (north side recommended).
• Above snow line.
• At least 3 feet away from exhaust vents and condensing lines.
• Using less than 300 feet of wire.
• Do not route wires along 120 VAC lines.
G
Y
W
RC
RH
C
O/B
L
T2
T1
90-2687
FIGURE 1 – OUTDOOR TEMPERATURE SENSOR WIRING
54

REMOTE TEMPERATURE SENSOR (OPTIONAL WITH S84N SU ONLY)
A remote temperature sensor can be used for control if the thermostat is to be mounted in a
concealed location or a remote sensor can be averaged with the thermostat sensor to control
a large space. An 8051 ush mount or 8053 surface mount remote temperature sensor can be
attached to the T1 and T2 terminals and mounted in a recommended area. The remote sensor
must be enabled in the installer set-up menu, and once enabled will override or be averaged
with the thermostat’s internal temperature sensor, based on the setting.
Remote temperature sensor should be mounted:
• On an interior wall, in a frequently occupied space.
• Approximately 5 feet above oor.
• At least 18” from outside wall.
• Using less than 300 feet of wire.
Do not mount remote sensor:
• Behind doors, in corners or other dead air spaces.
• In direct sunlight, near lighting xtures, or other appliances that give off heat.
• On an outside or unconditioned area wall.
• In the ow of a supply register, in stairwells, or near outside doors.
• On a wall with concealed pipes or ductwork.
• Near 120 VAC lines.
G
Y
W
RC
RH
C
O/B
L
T2
T1
90-2688
FIGURE 2 – REMOTE TEMPERATURE SENSOR WIRING
76

90-2689
FIGURE 3 – THERMOSTAT MOUNTING
THERMOSTAT MOUNTING
1. Remove the rear mounting plate
from the thermostat.
2. Pull wires through the opening
on the back of the rear mounting
plate.
3. Position and level the mounting
plate of the thermostat on wall
and mark the hole locations with
a pencil.
4. Insert and tighten supplied self-
drilling anchors (drywall only).
5. Place mounting plate over
anchors, insert and tighten screws.
6. Seal wire entry holes to prevent
drafts affecting temperature
readings.
POWER AND RESET OPTIONS
The thermostat is dual power. It can either be AC or battery powered, or both (to provide backup
power for the clock). Batteries are optional if the thermostat was connected to AC power when
installed. The thermostat has a memory backup that saves the thermostat settings in case of
power interruption. The thermostat can be set back to factory defaults from the installer settings
menu. See Installer System Settings section for details.
WIRING TERMINAL
WIRE SPECIFICATIONS:
• 18-24 gauge thermostat wire
INSTALLATION NOTES:
• Ensure power at the HVAC equipment is off.
• Loosen screw terminals, insert stripped wire and re-tighten.
• Push the excess wire back into the opening and plug the wall opening to prevent drafts.
98

RH 24VAC supply heating*
RC 24VAC supply cooling*
W
First stage heat (conventional) /
First stage auxiliary (heat pump
S84N SU only)
Y
First stage cooling
(conventional) / First stage
compressor (heat pump
S84N SU only)
GFan
CCommon
T1 & T2 Outdoor/remote temperature
sensor (S84N SU only)
O/B Reversing valve (S84N SU only)
LSystem fault indicator (S84N SU
heat pump congured only)
*Jumper between RC & RH is used in single
transformer systems (see wiring diagrams). 90-2690
FIGURE 4 – WIRING TERMINALS
G
Y
W
RC
RH
C
AIR
CONDITIONER
FURNACE
C
Y
JUMPER
G
Y
W
R
C
WIRING DIAGRAMS
FIGURE 5 – SINGLE STAGE HEAT/COOL, ONE TRANSFORMER (S84N 1H1C)
90-2682
1110

G
Y
W
RC
RH
C
HEAT SOURCE
(EX: BOILER)
AIR
CONDITIONER
AIR
HANDLER
R
W
Y
C
Y
G
C
R
REMOVE JUMPER
90-2683
FIGURE 6 – SINGLE STAGE HEAT/COOL, (EX: BOILER) TWO TRANSFORMER (S84N 1H1C) FIGURE 7 – SINGLE STAGE HEAT/COOL, ONE TRANSFORMER (S84N SU)
AIR
CONDITIONER
FURNACE
C
Y
JUMPER
G
Y
W
R
C
G
L
Y
T1
W
RC
RH
O/B
T2
C
ODT/REMOTE
TEMP SENSOR
90-2684
1312

FIGURE 8 – SINGLE STAGE HEAT/COOL (EX: BOILER), TWO TRANSFORMER (S84N SU)
G
L
Y
T1
W
RC
RH
O/B
T2
C
ODT/REMOTE
TEMP SENSOR
HEAT SOURCE
(EX: BOILER)
AIR
CONDITIONER
AIR
HANDLER
R
W
Y
C
Y
G
C
R
REMOVE JUMPER
90-2685
FIGURE 9 – SINGLE STAGE HEAT/PUMP, ONE TRANSFORMER (S84N SU)
G
L
Y
T1
W
RC
RH
O/B
T2
C
ODT/REMOTE
TEMP SENSOR
AIR
HANDLER
R
W
Y
G
JUMPER
C
OUTDOOR
UNIT
C
W
R
O/B
L
Y
90-2686
1514

HVAC INSTALLER SYSTEM SETTINGS TABLE
The following table contains 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.
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Equipment Type
(S84N SU only)
NOTE:Equipment Type related settings
will return to defaults if this is changed.
Heat/Cool
Heat Pump
O/B Energized For? Selects O or B reversing valve
operation. (Heat Pump mode only.)
Cooling
Heating
Control Setup Used to lockout heating or cooling
outputs. (Heat/Cool mode only).
Heat & Cool
Heat Only
Cool Only
Heat Pump Auxiliary
Type (S84N SU only)
Selects auxiliary type. (Heat Pump
mode only.)
Gas/Oil Heat
Electric Heat
Fan Control in Heating
Selects thermostat or equipment to
control the fan in heating. (Heat/Cool
mode only.)
Gas/Oil Heat
Electric Heat
SETUP AND TESTING
INSTALLER SETUP WIZARD AND
INSTALLER SETTING
The rst 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. The Installer Settings are
also accessible in the Installer Menu.
HOW TO ENTER THE INSTALLER MENU:
1. Press Select to enter the Main Menu.
2. Use or to navigate to Settings, press
SELECT.
3. Press and hold and for 3 seconds to
unlock the Installer option.
4. Use or to navigate to Installer,
press SELECT. Refer to the chart at right for
options.
INSTALLER
MENU OPTIONS DESCRIPTION
HVAC Settings
Essential HVAC
equipment (equipment
type, stages, etc.)
HVAC Advanced
Advanced HVAC control
(effsets, deadbands,
staging, protection, etc.)
Test
Installer test for
congured equipment
relay outputs
Reset Reset all settings to
factory default
1716

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Programmable Non Programmable hides all
scheduling features.
Programmable
Non Programmable
Wired Temperature
Sensor Installed?
(S84N SU only)
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.
Outdoor
Remote
(Onboard sensor disabled)
Remote Average
(Average with onboard sensor)
No
(No external sensor connected)
Advanced HVAC
Settings?
Select No to skip the rest of the
thermostat settings.
No
Yes
Progressive Recovery Enables or disables progressive
recovery.
Disabled
Enabled
Display Heat Blast? Select if the Heat Blast option is
displayed.
No
Yes
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Heat Blast Offset Amount of heating when Heat Blast is
initiated.
3°F (1.5°C)
4°F (2°C)
5°F (2.5°C)
Extended Fan – Heat Extends fan operation 90 seconds
after heat call ends.
Disabled
Enabled
Extended Fan – Cool Extends fan operation 90 seconds
after cool call ends.
Disabled
Enabled
Auto Changeover Enable or disable Auto Changeover
mode.
Disabled
Enabled
DeadBand Auto Changeover mode deadband. 3°F (1.5°C)
2 to 9°F (1 to 4.5°C)
Auto Changeover
Time
Minimum time between heating and
cooling calls.
4 Minutes
1 to 5 Minutes
Temp Sensor Offset Field adjustment of controlling
temperature sensors.
0°F (0°C)
-4 to 4°F (-2 to +2°C)
Equipment Minimum
On Time
Minimum on time for heating and
cooling.
2 Minutes
1 to 5 Minutes
1918

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Heating Minimum Off
Time Minimum off time for heating. 2 Minutes 1 to 5 Minutes
Compressor Minimum
Off Time (S84N SU
only)
Minimum off time for compressor
protection.
5 Minutes
1 to 5 Minutes
Outdoor Temperature
High Balance Point
(heat pump S84N SU
only)
Enable or disable high balance point.
(Available if an ODT is installed.)
Enabled
Disabled
High Balance Point
Temperature (heat
pump S84N SU only)
If outside temperature is above the
high balance point the aux heat
operation is not allowed. (Available if
high balance point is enabled.)
65°F (14.5°C)
0 to 80°F (-18 to 22°C)
Outdoor Temperature
Low Balance Point
(heat pump S84N SU
only)
Enable or disable low balance point.
(Available if an ODT is installed.)
Enabled
Disabled
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Low Balance Point
Temperature (heat
pump S84N SU only)
If outside temperature is below the
low balance point the compressor
operation is not allowed. (Available if
low balance point is enabled.)
20°F (-8°C)
0 to 60°F (-18 to 12°C)
Stage Rate
Accumulation of difference from
setpoint over time in staging
determination.
Enabled
Disabled
Stage Rate Factor
1 = more rapid staging of equipment
(comfort),
5 = slower staging of equipment
(economy).
2
1 to 5
First Stage Differential First stage differential. 1°F (0.5°C)
1 to 9°F (0.5 to 4.5°C)
Second Stage
Differential (S84N SU
only)
Second stage differential. 1°F (0.5°C)
1 to 9°F (0.5 to 4.5°C)
Service HVAC
Reminder
Enable or disable the HVAC Service
reminder message.
Disabled
Enabled
2120

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Recurrence Select number of months between
Service HVAC messages.
Disabled
Enabled
Air Cleaner Installed?
Selects if an air cleaner is installed. (If
set to No, no other air cleaner settings
will be available.)
No
Yes
Air Cleaner Reminder Enable or disable the Change Air Filter
message.
Disabled
Enabled
Recurrence Select number of months between
Change Air Filter messages.
12 Months
1 to 12 Months
Max Heat Setting Select the maximum heating set point
temperature allowed.
90°F (32°C)
40 to 90°F (4.5 to 32°C)
Min Heat Setting Select the minimum heating set point
temperature allowed.
40°F (4.5°C)
40* to 90°F (4.5 to 32°C)
Max Cool Setting Select the maximum cooling set point
temperature allowed.
99°F (37°C)
50 to 99°F (10 to 37°C)
Min Cool Setting Select the minimum cooling set point
temperature allowed.
50° (10°C)
50 to 99°F (10 to 37°C)
Next
W
HP: Heat Stage
1, Gas
SYSTEM TEST MENU
The 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 congured 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.
ENTER THE SYSTEM TEST MENU
1. Press Select to enter the Main Menu.
2. Use or to navigate to Settings, press
SELECT.
3. Press and hold and for 3 seconds to
unlock the Installer option.
4. Use or to select Installer, press SELECT.
5. Use or to select Test, press SELECT.
SYSTEM TEST STEPS
1. Heating equipment test.
2. Cooling equipment test.
3. Fan equipment test.
2322

70
72
HEATING
HOLD 5:00
PM
QUICK REFERENCE TO CONTROLS & DISPLAY
HOME SCREEN
UP ARROW
BACK
EQUIPMENT
STATUS
SELECT (OPENS
MENU FROM
HOME SCREEN)
ROOM
TEMPERATURE
DOWN ARROW
ROOM
TEMPERATURE
SETTING
EVENT
STATUS
Mode
Fan
Schedule
Hold
Heat Blast
Main Menu
MAIN MENU
Main Menu
Mode
Fan
Schedule
Hold
Heat Blast
Air Cleaning
Settings
Item availability based
on installed options.
2524

TROUBLESHOOTING
DISPLAY IS BLANK
• Check circuit breaker and reset if necessary.
• Make sure power switch at heating &
cooling system is on.
• Make sure furnace door is closed securely.
HEATING SYSTEM DOES NOT RESPOND
(“HEATING” APPEARS ON SCREEN)
• Check for 24VAC at the equipment on the
secondary side of the transformer between
power and common. If voltage is not
present, check the heating equipment to
nd the cause of the problem.
• Check for 24VAC between the heat terminal
(W) and the transformer common. If 24VAC
is present, the thermostat is functional.
Check the heating equipment to nd the
cause of the problem.
• Check for loose or broken wires between
the thermostat and the heating equipment.
TEMPERATURE SETTINGS DO NOT CHANGE
• Make sure heating and cooling
temperatures are set to acceptable ranges:
−Heat: 40° to 90°F (4° to 32°C).
−Cool: 50° to 99°F (10° to 37°C).
COOLING SYSTEM DOES NOT RESPOND
(“COOLING” APPEARS ON SCREEN)
• Check for 24VAC at the equipment on the
secondary side of the transformer between
power and common. If voltage is not
present, check the cooling equipment to
nd the cause of the problem
• Check for 24VAC between the cooling
terminal (Y) and the transformer common.
If 24VAC is present, the thermostat is
functional. Check the cooling system to
nd the cause of the problem.
• Check for loose or broken wires between
the thermostat and the cooling equipment.
70
11:11 AM
84°
Outside
SCREEN SAVER
Starts 45 seconds after inactivity, press any button to wake the screen. NOTE: Screen saver is not
available on thermostat installations that are not connected to C wire and run on battery power only.
CURRENT TIME
ROOM
TEMPERATURE
OUTDOOR
TEMPERATURE
(S84N SU ONLY
IF INSTALLED)
2726

FAN DOES NOT TURN ON IN A CALL FOR HEAT
• Check System Setting (Fan Control in
Heating), to make sure the fan control is
properly set to match the type of system
(see page 17).
HEAT PUMP ISSUES COOL AIR IN HEAT MODE,
OR WARM AIR IN COOL MODE (S84N SU ONLY)
• Check System Setting (O/B Operation) to
make sure the reversing valve operation
matches the heat pump.
HEAT/COOL BOTH ON AT SAME TIME
• Check System Setting (Equipment Type), to
make sure it is set to match the installed
heating/cooling equipment (see page 17).
• Check to make sure heating and cooling
wires are not shorted together.
HEATING EQUIPMENT IS RUNNING IN COOL
MODE
• Check System Setting (Equipment Type), to
make sure it is set to match the installed
heating/cooling equipment (see page 17).
“HEATING” IS NOT DISPLAYED
• Check System Setting (Control Setup) is set
correctly.
• Change the System Mode to Heat, and set
the temperature level above the current
room temperature.
“COOLING” IS NOT DISPLAYED
• Check System Setting (Control Setup) is set
correctly.
• Change the System Mode to Cool, and set
the temperature level below the current
room temperature.
ERROR CODES
If the thermostat enters an error mode, all outputs are turned off. The thermostat attempts to
recover every 10 minutes.
Error Code Message Error Description
E01 & E02 Sensor Error Internal temperature sensor failure
E03 EEPROM Error Error in permanent memory
E06 Remote Sensor Error Open remote temperature sensor circuit
E07 Remote Sensor Error Shorted remote temperature sensor circuit
2928

THERMOSTAT FEATURES
• Event-Based™ air cleaning.
• Heat Blast® raises the room temperature
3°F to 5°F.
• Easy to read, color graphical display.
• Easy to use installer settings, no codes.
• 7 day programmability.
• Displays room temperature and
temperature setting.
• Displays outdoor temperature
(S84N SU only).
• Air lter HVAC service reminders.
• Programmable fan control with fan
circulation mode.
• Easy to use temperature control can
override 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 your equipment.
• System test mode.
• Installer adjustable set point limits.
SPECIFICATIONS
ENVIRONMENT
Temperature Operating: 32° to 120°F (0° to 48.9°C)
Shipping: -30° to 150°F (-34.4° to 65.5°C)
Relative humidity Operating: 5% to 90% R.H. (non-condensing)
ELECTRICAL
Operating voltage 24VAC (18–30VAC)
Current Maximum: 2.5A (total), 1.0A (single output)
Maximum surge current: 5A
THERMAL
Outdoor & Remote temperature sensor
(S84N SU only) Maximum distance: 300 feet
Room temperature measurement Display range: 32° to 99°F (0° to 40°C)
Outdoor temperature measurement Display range: -40° to 130°F (-40° to 55°C)
Setpoint temperature range Heat: 40° to 90°F (4° to 32°C)
Cool: 50° to 99°F (10° to 37°C)
3130

B2208795B • 61001859 • 1.22
© 2022 AprilAire | aprilairepartners.com | 800.334.6011
U.S. Patent Numbers 8,146,376, 8,596,078, 9,874,366 and other patents pending.
AprilAire reserves the right to change specications without notice.