Aprilaire S86N MU User manual

READ AND SAVE THESE INSTRUCTIONS
70
72
HEATING
Thermostats
SAFETY & INSTALLATION
INSTRUCTIONS
Model S86N MU
Multi-Stage Universal Thermostat
Model S86N MUPR
Multi-Stage Universal Thermostat with IAQ

TABLE OF CONTENTS
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation Location Recommendations. . 3
Outdoor Temperature Sensor
(included with S86N MUPR only) . . . . . . . . . . . 4
Remote Temperature Sensor (optional). . . 6
Thermostat Mounting . . . . . . . . . . . . . . . . . . . . . . 8
Power and Reset Options . . . . . . . . . . . . . . . . . . 9
Wiring Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
WIRING DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Single & Multi Stage Heat/Cool,
One Transformer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Single & Multi Stage Heat/Cool,
(Ex: Boiler) Two Transformer . . . . . . . . . . . . . . . 12
Single & Multi Stage Heat Pump,
One Transformer. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Radiant & Heat/Cool, One Transformer . . 14
Radiant & Heat Pump, One Transformer . 15
Indoor Air Quality Equipment Wiring
Diagrams (S86N MUPR only) . . . . . . . . . . . . . . 16
SETUP AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Installer Setup Wizard and
Installer Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
HVAC Installer System Settings Table. . . . . 18
TABLE 1 – HVAC Installer System Settings . 18
Indoor Air Quality System Settings
Tables (S86N MUPR only) . . . . . . . . . . . . . . . . . .25
TABLE 2 – Humidier System Settings. . . . .25
TABLE 3 – Dehumidier System Settings. .29
TABLE 4 – Air Cleaning System Settings . . 31
TABLE 5 – Fresh Air Ventilation System
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
System Test Menu . . . . . . . . . . . . . . . . . . . . . . . . .36
QUICK REFERENCE TO CONTROLS
AND DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
THERMOSTAT FEATURES . . . . . . . . . . . . . . . . . . . . . . .43
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
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 (INCLUDED WITH S86N MUPR 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.
Indoor Air Quality functions can use the outdoor temperature sensor to:
• Control humidication set point based on outdoor temperature to prevent condensation
(S86N MUPR only).
• Lock out ventilation based on high and/or low outdoor temperatures (S86N MUPR only).
• Display outdoor temperature on thermostat.
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
W2
C
O/B
L
T2
Y2
T1
I2
I1
90-2561
FIGURE 1 – OUTDOOR TEMPERATURE SENSOR WIRING
54

REMOTE TEMPERATURE SENSOR (OPTIONAL)
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
W2
C
O/B
L
T2
Y2
T1
I2
I1
90-2562
FIGURE 2 – REMOTE TEMPERATURE SENSOR WIRING
76

90-2563
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 powered from 24VAC. In the case of power loss, the thermostat will maintain
the clock for 2 hours. 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*
WFirst stage heat (conventional) /
First stage auxiliary (heat pump)
YFirst stage cooling (conventional) /
First stage compressor (heat pump)
GFan
CCommon
O/B Reversing valve
LSystem fault indicator (optional)
(heat pump only)
W2 Second stage heat (conventional) /
Second stage auxiliary (heat pump)
Y2
Second stage cooling (conventional)
/ Second stage compressor (heat
pump)
T1 & T2 Outdoor/remote temperature sensor
I1 & I2 Indoor Air Quality control output
(S86N MUPR only)
*Jumper between RC & RH is used in single transformer
systems (see wiring diagrams). 90-2564
FIGURE 4 – WIRING TERMINALS
G
Y
W
RC
RH
W2
C
O/B
L
T2
Y2
T1
I2
I1
Y2
AIR
CONDITIONER
C
FURNACE
ODT/REMOTE
TEMP SENSOR
Y
G
Y2
Y
W
R
C
W2
JUMPER
WIRING DIAGRAMS
FIGURE 5 – SINGLE & MULTI
STAGE HEAT/COOL, ONE
TRANSFORMER
NOTE: Dashed lines
represent wiring for multi
stage systems only.
90-2565 1110

G
Y
W
RC
RH
W2
C
O/B
L
T2
Y2
T1
I2
I1
Y2
AIR
CONDITIONER
C
HEAT SOURCE
(EX: BOILER)
ODT/REMOTE
TEMP SENSOR
Y
W
R
AIR
HANDLER
C
G
Y
R
Y2
(REMOVE JUMPER)
90-2566
FIGURE 6 –
SINGLE & MULTI STAGE
HEAT/COOL, (EX: BOILER)
TWO TRANSFORMER
NOTE: Dashed lines
represent wiring for multi
stage systems only.
FIGURE 7 – SINGLE
& MULTI STAGE
HEAT PUMP, ONE
TRANSFORMER
NOTE: Dashed lines
represent wiring for
multi stage systems
only.
G
Y
W
RC
RH
W2
C
O/B
L
T2
Y2
T1
I2
I1
Y2
OUTDOOR
UNIT
C
AIR
HANDLER
ODT/REMOTE
TEMP SENSOR
Y
G
Y2
Y
W
R
C
W2
JUMPER
W
R
O/B
L
90-2567
1312

FIGURE 8 – RADIANT
& HEAT/COOL, ONE
TRANSFORMER
24V
COM NO(1)
COM(3)
E/W2
RRADIANT
FLOOR
W
CAIR
CONDITIONER
Y
FURNACE
G
C
R
W
Y
AA
8024
JUMPER
ODT/REMOTE
TEMP SENSOR
G
Y
W
RC
RH
W2
C
O/B
L
T2
Y2
T1
I2
I1
90-2677
FIGURE 9 –
RADIANT &
HEAT PUMP, ONE
TRANSFORMER
24V
COM NC(2)
COM(3)
E/W2
G
AIR
HANDLER
C
JUMPER
NO(4)
COM(6)
AA
8024
Y
R
O/B
W
Y
RRADIANT
FLOOR
W
ODT/REMOTE
TEMP SENSOR Y
OUTDOOR
UNIT
W
O/B
R
C
L
G
Y
W
RC
RH
W2
C
O/B
L
T2
Y2
T1
I2
I1
90-2678
1514

FIGURE 10 - INDOOR AIR QUALITY EQUIPMENT WIRING DIAGRAMS (S86N MUPR ONLY)
DUCT MOUNTED EVAPORATIVE HUMIDIFIERS
(APRILAIRE SERIES 400, 500, 600, 700)
I2
I1
SOLENOID
TRANSFORMER
HUMIDIFIER
DRY CONTACT INPUT
STANDALONE OR RESIDENTIAL STEAM HUMIDIFIER
(APRILAIRE SERIES 300, 800)
I2
I1
HUMIDIFIER
DEHUMIDIFIER
(APRILAIRE SERIES 1800, e-SERIES)
DRY CONTACT INPUT
I2
I1
DEHUMIDIFIER
VENTILATION
(APRILAIRE SERIES 8100)
VENTILATION
TRANSFORMER*
DAMPER
I2
I1
90-2569
90-2571
90-2570
90-2680
NOTE:The I1/I2 output is a dry contact closure. The HUMIDIFIER wiring diagram assumes the
control is powering a solenoid valve. The DEHUMIDIFIER wiring diagram is for a normally open
dry contact input. The VENTILATION wiring diagram assumes the control is for a normally closed
damper. Refer to the individual humidier, dehumidier or ventilation installation instructions for
product specic wiring details.
*If required by ventilation accessory.
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.)
IAQ Settings
(S86N MUPR
only)
Humidier, Dehumidier,
Air Cleaner, and
Ventilation conguration
Test
Installer test for
congured equipment
relay outputs
Reset Reset all settings to
factory default
1716

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 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
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
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Number of
Compressor Stages
Select number of compressor stages.
(Heat Pump mode only.)
One
Two
Number of Auxiliary
Heat Stages
Select number of auxiliary heat stages.
(Heat Pump mode only.)
One
Two
Number of Stages
of Heat
Select number of heat stages. (Heat/
Cool mode only.)
One
Two
Number of Stages
of Cool
Select number of cool stages. (Heat/Cool
mode only.)
One
Two
Programmable Non Programmable hides all scheduling
features.
Programmable
Non Programmable
Wired Temperature
Sensor Installed?
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)
1918

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
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
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
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
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)
RH Sensor Offset Internal RH sensor. Increases or
decreases displayed RH%.
0
-5 to 5
Equipment
Minimum On Time
Minimum on time for heating and
cooling.
2 Minutes
1 to 5 Minutes
Heating Minimum
Off Time Minimum off time for heating. 2 Minutes 1 to 5 Minutes
Compressor
Minimum Off Time
Minimum off time for compressor
protection.
5 Minutes
1 to 5 Minutes
2120

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
Outdoor
Temperature High
Balance Point
Enable or disable high balance point.
(Available if an ODT is installed.)
Enabled
Disabled
High Balance Point
Temperature
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
Enable or disable low balance point.
(Available if an ODT is installed.)
Enabled
Disabled
Low Balance Point
Temperature
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
TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
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 Second stage differential. 1°F (0.5°C) 1 to 9°F (0.5 to 4.5°C)
Third Stage
Differential Third stage differential. 1°F (0.5°C) 1 to 9°F (0.5 to 4.5°C)
Fourth Stage
Differential Fourth 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
Recurrence Select number of months between HVAC
Service reminder messages.
12 Months
1 to 12 Months
2322

TABLE 1 – HVAC INSTALLER SYSTEM SETTINGS
System setting Description Factory default setting (bold) and setting range
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)
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. While the outdoor temperature sensor option was presented in the HVAC installer
settings, it is also available in the Indoor Air Quality settings.
Please refer to the Owner’s Manual for further information about thermostat features.
TABLE 2 – HUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
NOTE: A humidier can only be installed if ventilation is not installed and dehumidier control
is not set to Whole Home.
Humidier
Installed?
Selects whether a humidier is installed.
Yes/On HVAC is used for applications where
the humidier is installed on the HVAC duct.
Yes/Standalone is used for applications
where the humidier is independent from
the HVAC system. (If set to No, no other
humidier settings will be available.)
No
Yes/On HVAC
Yes/Standalone
2524

TABLE 2 – HUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
Wired
Temperature
Sensor Installed?
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)
Humidier Mode
Selects auto or manual mode. Auto mode
controls humidity based on the humidity
setting and outdoor temperature. Manual
mode controls humidity based on the %RH
setpoint. (Auto mode is only available if an
outdoor sensor option is enabled.)
Auto
Manual
TABLE 2 – HUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
Allowed
Humidier
Operation
Selects when humidication is allowed to
occur relative to heating and fan operation.
NOTE: Without Fan is only available
when Humidier Installed is set to Yes/
Standalone. It allows humidication to
occur without activating an HVAC fan and
should only be used when the humidier
is mounted independently of any HVAC
system.
Heat Only
Heat or Fan
Forces Fan
Without Fan
CAUTION
When Humidier Operation is set to Without Fan the thermostat will turn on
humidication without energizing the HVAC fan. Do not select this option when the
humidier is installed on the HVAC duct. Without airow moisture can accumulate in the
duct resulting in signicant damage.
2726

TABLE 2 – HUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
Humidier
Reminder
Selects when the “Change Water Panel”
message is displayed.
Off
150h Valve
300h Valve
600h Valve
1 per season
2 per season
Single or First
Reminder
Appears
Determines the month the rst (or only)
“Change Water Panel” message is
displayed.
October
November
December
January
February
March
April
May
June
July
August
September
Second Reminder
Appears
Determines the month the second “Change
Water Panel” message is displayed. (Only
available when 2 reminders per season is
selected.)
October
November
December
January
February
March
April
May
June
July
August
September
TABLE 3 – DEHUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
NOTE: Dehumidier control can only be set to Whole Home if ventilation and humidication
are not enabled.
Dehumidier Type
Installed?
Selects if a dehumidier is installed. (If set to
None, no other dehumidier settings will be
available.) AC w/ IAQ selects overcooling, I1 and
I2 terminals energize during overcooling. AC
w/o IAQ selects overcooling, I1 and I2 terminals
are not used.
None
Whole Home
AC w/ IAQ
AC w/o IAQ
Disable
Dehumidication
During Cooling?
Selects if dehumidication is disabled during a
cooling call.
Yes
No
Dehumidier
Forces Fan?
Selects if dehumidication can turn on the
HVAC system fan.
Yes
No
Dehumidier
Overcool Limit
Selects the amount of overcooling that can
occur for dehumidication. (Only available if
dehumidier type is set to Overcool.)
1°F (0.5°C)
2°F (1°C)
3°F (1.5°C)
2928

TABLE 3 – DEHUMIDIFIER SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
Dehumidier
Reminder
Enable or disable the Dehumidier Service
reminder message.
Disabled
Enabled
Recurrence Select number of months between
Dehumidier Service reminder messages.
12 Months
1 to 12 Months
Dehumidify in
Vacation Hold?
Selects if dehumidication with the air
conditioner is done in vacation mode.
No
Yes
Vacation Hold Low
Temperature Limit
Sets the lowest temperature the air conditioner
will cool to, to meet RH setpoint in Vacation
Mode. (Only available if dehumidier type is set
to Overcool.)
75°F (24°C)
70 to 85°F (21 to 29.5°C)
Humidity
Deadband
Select the minimum difference between the
humidier and dehumidier setpoints. (Only
available if both Humidier and Dehumidier
are enabled.)
10%
10 to 20%
TABLE 4 – AIR CLEANING SYSTEM SETTINGS (S86N MUPR ONLY)
System setting Description Factory default setting (bold) and setting range
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
3130

TABLE 5 – FRESH AIR VENTILATION SYSTEM SETTINGS (S86N MUPR ONLY)
System
setting Description Factory default setting (bold) and setting range
NOTE: Ventilation can only be installed if humidication is not enabled and dehumidier
control is not set to Whole Home.
Fresh Air Vent
Installed?
Selects if ventilation is installed. (If set to No, no
other ventilation settings will be available.)
No
Yes
Fresh Air
Setup Type
Selects if ventilation is congured through the
Code setup or Comfort. Comfort setup has
more lockout options. Code setting ensures
time missed due to lockouts is made up.
Comfort
Code
Number of
Bedrooms
Selects the number of bedrooms to be used for
the Calculated Minutes per Hour.
3 Bedrooms
1 to 10 Bedrooms
Square
Footage
Selects the size of the home to be used for the
Calculated Minutes per Hour.
2500 SQ FT
500 to 7500 SQ FT
Measured
CFM
Selects the ventilation CFM to be used for the
Calculated Minutes per Hour.
110 CFM
30 to 250 CFM
Calculated
Minutes Per
Hour
Displays the Fresh Air Time calculated. None
Range 6 to 60 Minutes
TABLE 5 – FRESH AIR VENTILATION SYSTEM SETTINGS (S86N MUPR ONLY)
System
setting Description Factory default setting (bold) and setting range
Override Manual adjustment of Calculated Minutes per
Hour.
(Calculated Minutes per Hour)
Range 6 to 60 Minutes
Wired
Temperature
Sensor
Installed?
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)
High Vent RH
Limit
Selects if ventilation is disabled when the
indoor RH exceeds the indoor RH limit. (Only
available if Fresh Air Setup is set to Comfort.)
Disabled
Enabled
High Vent RH
Limit
Sets the ventilation indoor RH lockout limit. (Only
available if High Vent RH Limit is set to Enabled.)
55%
45% to 70%
Low Vent RH
Limit
Selects if ventilation is disabled when the
indoor RH exceeds the indoor RH limit. (Only
available if Fresh Air Setup is set to Comfort.)
Disabled
Enabled
3332

TABLE 5 – FRESH AIR VENTILATION SYSTEM SETTINGS (S86N MUPR ONLY)
System
setting Description Factory default setting (bold) and setting range
Low Vent RH
Limit
Sets the ventilation indoor RH lockout limit. (Only
available if Low Vent RH Limit is set to Enabled.)
20%
10% to 30%
High Vent
Temperature
Limit
Enables high ventilation temperature lockout
limit. (Only available if an outdoor sensor option
is enabled.)
Disabled
Enabled
High Vent
Temperature
Limit
Sets high ventilation temperature lockout limit.
(Only available if High Vent Temperature Limit is
set to Enabled.)
100°F (38°C)
85°F to 105°F (29°C to 41°C)
Low Vent
Temperature
Limit
Enables low ventilation temperature lockout
limit. (Only available if an outdoor sensor option
is enabled.)
Disabled
Enabled
Low Vent
Temperature
Limit
Sets low ventilation temperature lockout limit.
(Only available if Low Vent Temperature Limit is
set to Enabled.)
10°F (-12°C)
-10°F to 40°F (-24°C to 6°C)
HVAC Fan
with Vent?
Selects if ventilation forces the fan on. (Yes with
high and low limits is only available if an
outdoor sensor option is enabled.)
Yes
Yes with high and low limits
No
TABLE 5 – FRESH AIR VENTILATION SYSTEM SETTINGS (S86N MUPR ONLY)
System
setting Description Factory default setting (bold) and setting range
High Mixing
Temperature
Enables high mixing temperature.
(Only available is HVAC Fan with Vent is set to
Yes with high and low limits.)
Disabled
Enabled
High Mixing
Temperature
Sets the high mixing temperature.
(Only available if High Mixing Temperature is set
to Enabled.)
80°F or (26°C)
60°F to 105°F (14°C to 41°C)
Low Mixing
Temperature
Enables low mixing temperature.
(Only available is HVAC Fan with Vent is set to
Yes with high and low limits.)
Disabled
Enabled
Low Mixing
Temperature
Sets the Low mixing temperature.
(Only available if Low Mixing Temperature is set
to Enabled.)
40°F (6°C)
0°F to 50°F (-18°C to 12°C)
Fresh Air
Reminder
Enable or disable the Service Fresh Air
message.
Disabled
Enabled
Recurrence Select number of months between Service
Fresh Air messages.
12 Months
1 to 12 Months
3534

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 Settings, press
Select.
5. Use or to select
System Test, press Select.
SYSTEM TEST STEPS
1. Heating
equipment test.
2. Cooling
equipment test.
3. Fan equipment
test.
4. Humidication
equipment test.
5. Dehumidication
equipment test.
6. Ventilation
equipment test.
HP: Heat Stage
1, Gas
Next
W
QUICK REFERENCE TO CONTROLS & DISPLAY
HOME SCREEN
70
72
HEATING
HOLD 5:00
PM
UP ARROW
BACK
EQUIPMENT
STATUS
SELECT (OPENS
MENU FROM
HOME SCREEN)
ROOM
TEMPERATURE
DOWN ARROW
ROOM
TEMPERATURE
SETTING
3736

MAIN MENU
Main Menu
Mode
Fan
Schedule
Hold
Heat Blast
Main Menu
Mode
Fan
Schedule
Hold
Heat Blast
Humidifier
Ventilation
Dehumidifier
Air Cleaning
Vacation
Settings
Item availability based
on installed options and
thermostat model.
SCREEN SAVER
Starts 45 seconds after inactivity, press any button to wake the screen.
70
11:11 AM
84°
55%
Indoor RH
Outside
INDOOR RH%
(EXCEPT S86N MU)
CURRENT TIME
ROOM
TEMPERATURE
OUTDOOR
TEMPERATURE
3938