Prostat OEM Series User guide

Installer Manual
Residential Smart Wi-Fi Thermostat
PSP4273 Up to 4-heat / 2-cool with Humidity Control
OPTIONAL Wi-Fi and Local API with module
1 Specifications 2 Installation Instructions and Wiring 3 Installer Setup
4 Factory Defaults 5 Technician Setup & Calibration 6 Troubleshooting
7 Limited Warranty
Follow Installation Instructions carefully. Disconnect Power to the Heater/
Air Conditioner before removing the old thermostat and installing the new
thermostat.
CAUTION
WARNING
1 Specifications
• Geofencing with Optional Plug-In Module
• Choose 7-Day, 5/1/1 day or 1-Day
Programming
• 365-Day Vacation Programming
(when connected to ProStat+ Web Portal)
• Smart recovery auto-adjusts Morning
start time
• Setpoint Limiting
• Energy Watch tracks heating, cooling,
and aux heat run times
• Adjustable Timers & Deadbands
Between Stages
• CA Title 24 Compliant
• Fresh Air Ventilation Control
• Controls Humidification,
Dehumidification & Reheat
• Dual Fuel Compatible
• Condensate overflow warning system
• Control to, or Monitor a 2nd Remote
Sensor, baby’s room or game room, etc.
• Choice of English, Spanish or French
For Scrolling Display
• OEM-Branded Equipment
Badges Included
© Copyright 2021, All Rights Reserved
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Installer Guide 1
1Remove and Replace the old thermostat
To install the thermostat properly, please follow these step by step
instructions. If you are unsure about any of these steps, call a qualified
technician for assistance.
• Installation tools: Small flat blade screwdriver, Phillips screwdriver, wire
cutters and wire strippers.
• Make sure your Heater/Air Conditioner is working properly before
beginning installation of the thermostat.
• Carefully unpack the thermostat. Save the screws, any brackets,
and instructions.
• Turn off the power to the Heating/Air Conditioning system at the main fuse
panel. Most residential systems have a separate breaker or switch for
disconnecting power to the furnace.
• Remove the cover of the old thermostat. If it does not come off easily,
check for screws.
• Loosen the screws holding the thermostat base or subbase to
the wall and lift away.
• If you have a smart phone handy, take a photo of the wiring for
future reference.
• Disconnect the wires from the old thermostat. Tape the ends of the wires
as you disconnect them, and mark them with the letter of the terminal for
easy reconnection to the new thermostat.
• Keep the old thermostat for reference purposes, until your new thermostat
is functioning properly.
2 Installation Instructions
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2 Installer Guide
2 The ProStat+Thermostat Backplate
To remove the thermostat backplate:
Gently separate the display from the
base by pulling from the center.
R C AUX DEHUM HUM W3 W2 W1/O/B
G Y1 Y2
REMOTE/
OUTDOOR
DRY
CONTACT
To remove the thermostat
backplate from the wall: pry
with screwdriver in either
slot to remove back plate
R 24 VAC return
GFan relay
W1/O/B 1st stage heat circuit
or reversing valve
W2 2nd stage heat circuit*
W3 3rd stage heat circuit**
Y1 1st stage compressor
(Cool or Heat)
Y2 2nd stage compressor
(Cool or Heat)
C24 VAC common
AUX Ventilation Control
HUM Humidifier control circuit
DEHUM Dehumidifier control circuit
DRY FDD alerts, twist timer, etc.
CONTACT
REMOTE Remote sensor connections
SENSOR
OUTDOOR Outdoor sensor connections
SENSOR
IMPORTANT: This thermostat requires both R (24 VAC Return) and
C (24 VAC Common) be connected to the backplate terminals.
*3rd stage heat for heat pumps with two compressor stages
**4th stage heat for heat pumps with two compressor stages
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Installer Guide 3
GAS/ELEC
OR
RV=B
RV=O
ON
12 3
1
GAS
RV=O
GAS/ELEC
ELEC
RV=B
HEATPUMP
ON
23
1
GAS
RV=O
GAS/ELEC
ELEC
RV=B
HEATPUMP
ON
23
RV=B
RV=O
ON
12 3
OR
ELEC
GAS
ON
12 3
ELEC
GAS
ON
12 3
OR
ON
123
HEATPUMP
GAS/ELEC
ON
123
HEATPUMP
1. When GAS/ELEC or HEATPUMP is set for GAS/ELEC:
This switch (GAS or ELEC) controls how the
thermostat will control the Fan (G) terminal in
heating mode. When GAS is chosen, the thermostat
will not energize the Fan (G) terminal in heating.
When ELEC is chosen the thermostat will energize
the fan in heating.
2. When GAS/ELEC or HEATPUMP is set for HEATPUMP:
This switch (GAS or ELEC) defines the Aux Heat
type. When GAS is chosen, the auxiliary heat will
not be allowed to run during heat pump operation.
When ELEC is chosen, up to two stages of auxiliary
strip heat will be allowed to run.
For Heat Pump Only
When the GAS/ELEC or HEATPUMP dip switch is
configured for HEATPUMP, this dip switch (O or
B) must be set to control the appropriate reversing
valve. If Ois chosen, the W1/O/B terminal will
energize in cooling. If Bis chosen, the W1/O/B
terminal will energize in heating.
This dip switch configures the thermostat to
control a conventional gas/electric system or a
heat pump. If your system is anything other than
a heat pump, leave this switch set for GAS/ELEC.
3Check Dip Switch
Ensure which switch is correct for your
system. Dip switches are located on the
back of the thermostat.
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4 Installer Guide
4Sample Wiring Diagrams
Conventional Heating and Cooling Systems
Residential & Commercial 1 Stage Heating
with no Fan.
3 Wire, Heat Only
24VAC Power
24VAC Common
1st Stage Heat
Residential & Commercial 1 Stage Cooling.
4 Wire, Cool Only
R
C
Y1
G
Residential & Commercial 1 Stage Cooling,
with 1 stage Gas Heat.
5 Wire, 1 Stage Cooling, 1 Stage Heat
24VAC Power
24VAC Common
1st Stage Heat
1st Stage Cool
Fan
Residential & Commercial 1 Stage Cooling,
with 1 stage Electric Heat.
5 Wire, 1 Stage Cooling, 1 Stage Heat
24VAC Power
24VAC Common
1st Stage Heat
1st Stage Cool
Fan
Residential & Commercial 2 Stage Cooling,
with 3 stage Gas Heat.
8 Wire, 2 Stage Cooling, 3 Stage Heat
24VAC Power
24VAC Common
1st Stage Heat
2nd Stage Heat
3rd Stage Heat
1st Stage Cool
2nd Stage Cool
Fan
R
C
W1/O/B
Y1
G
R
C
W1/O/B
Y1
G
R
C
W1/O/B
W2
W3
Y1
Y2
G
R
C
W1/O/B
24VAC Power
24VAC Common
1st Stage Cool
Fan
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
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Installer Guide 5
Residential & Commercial Heat Pump with
O Reversing Valve
5 Wire, 1 Stage Cooling, 1 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
Y1 1st Stage Compressor
(Cool or Heat)
G Fan
Residential & Commercial Heat Pump with
O Reversing Valve.
8 Wire, 2 Stage Cooling, 4 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
W2 3rd Stage Heat
W3 4th Stage Heat
Y1 1st Stage Compressor
(Cool or Heat)
Y2 2nd Stage Compressor
(Cool or Heat)
G Fan
Setup Step 31 is set to 2
(Number of Compressor Stages)
Residential & Commercial Heat Pump with
O Reversing Valve
6 Wire, 1 Stage Cooling, 2 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
Y1 1st Stage Compressor
(Cool or Heat)
W2 Aux Heat
G Fan
Residential & Commercial Heat Pump with
O Reversing Valve.
7 Wire, 2 Stage Cooling, 3 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
W2 3rd Stage Heat
Y1 1st Stage Compressor
(Cool or Heat)
Y2 2nd Stage Compressor
(Cool or Heat)
G Fan
Setup Step 24 is set to 2
(Number of Compressor Stages)
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23 1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
Note: When the unit goes into 4th stage
heating, there is no 4th stage indicator,
the display will still show 3rd stage.
Heat Pump Systems
31
31
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6 Installer Guide
Humidification or Dehumidification
Humidification
System
DEHUM/
HUM
Dehumidification Terminal
on Equipment
Dry Contact and Aux Output
12
11
10
9
8
765
4
3
2
1
Accessory control such
as a Sprinkler System
Accessory such as a
Time Clock or door switch
R C AUX DEHUM HUM W3 W2 W1/O/B
G Y1
Y2
REMOTE/
OUTDOOR DRY CONTACT
R C AUX DEHUM HUM W3 W2 W1/O/B
G Y1 Y2
REMOTE/
OUTDOOR DRY CONTACT
Ventilation control
Residential & Commercial Heat Pump with
O Reversing Valve
5 Wire, 1 Stage Cooling, 1 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
Y1 1st Stage Compressor
(Cool or Heat)
G Fan
Residential & Commercial Heat Pump with
O Reversing Valve.
8 Wire, 2 Stage Cooling, 4 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
W2 3rd Stage Heat
W3 4th Stage Heat
Y1 1st Stage Compressor
(Cool or Heat)
Y2 2nd Stage Compressor
(Cool or Heat)
G Fan
Setup Step 31 is set to 2
(Number of Compressor Stages)
Residential & Commercial Heat Pump with
O Reversing Valve
6 Wire, 1 Stage Cooling, 2 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
Y1 1st Stage Compressor
(Cool or Heat)
W2 Aux Heat
G Fan
Residential & Commercial Heat Pump with
O Reversing Valve.
7 Wire, 2 Stage Cooling, 3 Stage Heat
R 24VAC Power
C 24VAC Common
W1/O/B Reversing Valve
W2 3rd Stage Heat
Y1 1st Stage Compressor
(Cool or Heat)
Y2 2nd Stage Compressor
(Cool or Heat)
G Fan
Setup Step 24 is set to 2
(Number of Compressor Stages)
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
Heat Pump Systems with Dual Fuel
Dry Contact and Aux Output
12
11
10
9
8
765
4
3
2
1
Accessory
such as
Time Clock
or door switch
R C W2 W3 HUM
DEHUM AUX
W1/O/B
G Y1 Y2
REMOTE/
OUTDOOR DRY CONTACT
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Installer Guide 7
3 Installer Setup
FD = Factory
Default Setting
Setup Step Table
See User Manual for steps 1 - 8
Step# Description Pg# Range Df
1 Prog Mode Non, 1 Day, 5/2 Day, 7 Day 7
2 Available Modes Heat/Cool/Auto/Off, Heat/Cool Heat/Cool/
/Off, Heat/Off, Cool/Off Auto/Off
3 Backlight On, Off Off
4 Backlight Level Off thru 7 levels of brightness Level 5
5 Night Dimmer On/Off Off
6 Night Dimmer Brightness Off thru 7 levels of brightness 2 (20%)
7 Night Dimmer Start Time 12A-12A 8:00P
8 Night Dimmer StopTime 12A-12A 6:00A
9 Current Service Filter Runtime Hours 0-1999 Hours 0
10 Current Service Filter Calendar Days 0-720 Days 0
11 Current Heat Runtime Hours 0-1999 Hours 0
12 Current Aux Heat Runtime Hours 0-1999 Hours 0
13 Current Cool Runtime Hours 0-1999 Hours 0
14 Current UV Lamp Calendar Days 0-720 Days 0
15 Current Humidifier Calendar Days 0-720 Days 0
16 Set Service Filter Runtime Hours 0-1950 hours 0
17 Set Service Filter Calendar Days 0-720 Days 0
18 Set UV Lamp Calendar Days 0-720 Days 0
19 Set Humidifier Calendar Days 0-720 Days 0
20 Language English, Espanol, Francais English
21 Scrolling Method “L-R Slow, L-R Fast, Word L-R “Whole
Slow, Word L-R Fast, Whole Words
Word L Slow, Whole Word R Center
Slow, Whole Word Ctr. Fast, Fast”
Whole Word Ctr. Slow”
22 Setpoint Limits No, Use No
23 Max Heat Setpoint 35 - 99 Degrees 74
24 Min Cool Setpoint 35 - 99 Degrees 70
25 Cycles Per Hour No Limit, 2, 3, 4, 5, 6 6
26 Compressor Minimum Off Minutes 0, 3, 5 Minutes 5
27 Min. Heat/Cool Setpoint Difference 0 - 6 Degrees 2
28 Number of Heat Stages 0 - 3 2
29 Number of Cool Stages 0 - 2 1
30 Number Of Compressor Stages 1, 2 1
31 Number of Aux Stages 0, 1, 2 0
32 1st Stage Deadband 1 - 6 Degrees 2
33 2nd Stage Deadband 0 - 10 Degrees 2
34 3rd Stage Deadband 0 - 10 Degrees 2
35 4th Stage Deadband 0 - 10 Degrees 2
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8 Installer Guide
FD = Factory
Default Setting
Step# Description Pg# Range Df
36 Minutes Between 1st and 2nd Stage 0 - 60 Minutes 2
37 Minutes Between 2nd and 3rd Stage 0 - 60 Minutes 2
38 Minutes Between 3rd and 4th Stage 0 - 60 Minutes 2
39 2nd StageTurnoff Point Deadband, Setpoint Deadband
40 3rd StageTurnoff Point Deadband, Setpoint Deadband
41 4th StageTurnoff Point Deadband, Setpoint Deadband
42 Fan Program On, Off Off
43 Minutes of Fan Runtime 0-60 0
44 Fan Program Start Time 12:00A - 12:00A 7:00A
45 Fan Program StopTime 12:00A - 12:00A 9:00A
46 Wired SensorType Remote, Supply Remote
47 Control toTemp Source Thermostat, Wired Remote*, Thermostat
Wireless Remote, Average of
Wireless Remotes, Average
Thermostat and Wired Remote*,
Average All Sensors. *Option
only if prior step = “Remote”
48 Wireless Remote to Use list of wifi sensors currently first linked
linked to thermostat. * This sensor in list
step only appears if prior step =
“Wireless Remote”
49 Humidity Only With Heat On, Off Off
50 Fan With Humidity Demand Fan On, Fan Off Fan Off
51 Fan With Dehumidify Demand Fan On, Fan Off Fan Off
52 Humidity Setpoints Auto, Manual Manual
53 CoolTo Dehumidify On, Off Off
54 Maximum Dehum Overcool 0 - 20 Degrees 2
55 Reheat Operation W/CoolTo Dehum. On, Off Off
56 Lockout Heatpump with Outdoor Temp On, Off Off
57 LockoutTemp 0 - 75 Degrees 35
58 Lockout Aux Heat with Outdoor Temp On, Off Off
59 Aux Heat LockoutTemp 20 - 75 Degrees 75
60 Dualfuel On, Off Off
61 Dualfuel Changeover on Outdoor Temp On, Off Off
62 Dualfuel Balance Point 0 - 60 Degrees 35
63 Dualfuel Changeover Delay in Seconds 0 - 90 Seconds 30
64 Fan Off Delay 0 - 120 Seconds 0
65 F/C Fahrenheit (F), Celsius (C) F
66 Aux Output Polarity Open, Closed Open
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Installer Guide 9
Step# Description Pg# Range Df
67 Aux Output Time, Temp, External, Free Time
Cooling, Venting
68 Aux Output Program Days 1 Day, 5/2 Day, 7 Day 1
69 Day Of WeekTo Program Sunday - Monday (S - M) MTWTFSS
70 Aux Output StartTime 12am - 12am 7am
71 Aux Output StopTime 12am - 12am 9pm
72 Copy Yes, No No
73 Aux OutputTemp Source Thermostat, Outdoor, Remote, Remote
External
74 Aux OutputTrigger PointTemp 0 - 120 Degrees 65
75 Free Cooling with A/C With A/C, Without A/C With A/C
76 Free Cooling UsuableTemp 40 - 80 Degrees 65
77 Comfort Recovery On, Off Off
78 Dry Contact Polarity Open, Closed Open
79 Dry Contact Use Condensate, Vacation, FDD Vacation
80 Humidity Polarity Open, Closed Open
81 Dehumidify Polarity Open, Closed Open
82 Dehumidify only with Cooling On, Off On
83 ProStat+ Web Portal On, Off On
84 Local API On, Off Off
85 ADR On, Off On
86 ADR Action Observe Setpoint Offset, Observe
Observe Static Setpoints SP Offsets
87 Event Max Cool Setpoint 65 - 90 90
88 Event Min Heat Setpoint 50 - 85 50
89 Static Cool Setpoint 65 - 85 82
90 Static Heat Setpoint 65 - 85 60
91 Cool Setpoint Offset 1 to 10 4
92 Heat Setpoint Offset -1 to -10 -4
93 Press FanTo Clear All Messages
FD = Factory
Default Setting
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10 Installer Guide
These setup steps allow the user to monitor
equipment runtimes and program service alerts.
Service alerts are displayed in the scrolling
marquee.
How to Change Settings in the Setup Screens
To enter Advanced Setup, press the SETUP button, then press MODE. Use the WARMER or
COOLER buttons to adjust the value of your selection. Press MODE to advance to the next
setup step. Press SETUP again to leave the setup screens.
WARMER
COOLER
MODE
Set
Clock
WARMER
COOLER
MODE
Set
Clock
Current Service Filter Runtime Hours (Setup Step 9) - This counter keeps track of the
number of hours of fan runtime in the Heating mode, Cooling mode, and in stand alone
Fan operation. Press FAN to reset.
Current Service Filter Calendar Days (Setup Step 10) - This counter displays the total
number of calendar days that have elapsed since the counter was reset to help the user
track filter usage. Press FAN to reset.
Set Service Filter Runtime Hours (Setup Step 16) - This timer allows the user to specify
the number of hours the fan will run before the “Replace Filter” alert will be displayed.
Press COOLER continuously until 0 is displayed to disable this alert.
Set Service Filter Calendar Days (Setup Step 17) - This timer allows the user to specify
the number of calendar days that will elapse before the “Replace Filter” alert will be
displayed. Press COOLER continuously until 0 is displayed to disable this feature.
Press and hold FAN
to clear service alert
messages from the
scrolling marquee.
FAN
ON
|AU
TO
Service Filter Runtime (Setup Steps 9-10, 16-17)
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Installer Guide 11
Heating and Cooling System Runtime - Energy Watch (Setup steps 11-13)
Current Heat Runtime Hours (Setup Step 11) - This counter keeps track of the number
of hours the system has run in Heating. Press FAN to reset.
Current Aux Strip Heat Runtime Hours (Setup Step 12) - This counter keeps track
of the number of hours the system has run in Auxiliary Heating. This setup step is only
available when the thermostat jumpers are configured for Heat Pump and Electric Heat.
Press FAN to reset.
Current Cool Runtime Hours (Setup Step 13) - This counter displays the number of
hours the system has run in Cooling. Press FAN to reset.
UV Lamp Runtime (Setup Steps 14, 18)
Current UV Lamp Calendar Days (Setup Step 14) - This counter displays the total
number of calendar days that have elapsed since last reset to help the user track UV
lamp runtime. Press FAN to reset.
Set UV Lamp Calendar Days (Setup Step 18) - This timer allows the user to specify the
number of calendar days the UV Lamp will operate before the “Replace UV Lamp” alert
will be displayed. Press COOLER continuously until 0 appears to disable this alert.
Humidifier Runtime (Setup Steps 15, 19)
Current Humidifier Calendar Days (Setup Step 15) - This counter displays the total
number of calendar days that have elapsed since last reset to help the user track the
Humidifier run time. Press FAN to reset.
Set Humidifier Calendar Days (Setup Step 19) - This timer allows the user to specify
the number of calendar days the Humidifier will run before the “Service Humidifier” alert
will be displayed. Press COOLER continuously until 0 appears to disable this alert.
Runtime Alerts & Reset (Setup Steps 11-19)
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12 Installer Guide
Language (Setup Step 20) - Setup step instructions on the scrolling display can be set
for English, Spanish, or French.
Scrolling Display Method (Setup Step 21) - This option allows the user to choose how
the scrolling text is displayed. Options are:
Am
Outdoor
C OO L S ET
H EAT S ET
78
74
68
85
A
Am
Outdoor
C OO L S ET
H EAT S ET
78
74
68
85
B
Example of “Whole Words Centered”:
Each press of the DISPLAY button
will remove icons. Keep pressing
DISPLAY to make icons reappear.
Press and hold DISPLAY for 5 seconds
to view a name and phone number to
call for service.
Any removed icons will be displayed temporarily when a setting change is made.
Show All
Remove Scrolling Te xt
Remove Day of Week
Remove Current Time
Remove Outdoor Te mp
Remove Setpoint
Remove Mode
Scroll Letters Slow
Scroll Letters Fast
Scroll Words Slow
Scroll Words Fast
Scrolling
Non-Scrolling
Whole Words Slow
Whole Words Fast
Words Centered Slow
Words Centered Fast
12:0012:00
DISPLAY
Setpoint Limits (Setup Step 22) - When this feature is at any setting other than NO
SETPOINT LIMITS the heat and cool setpoints can be restricted to preset levels, set in
steps 23 and 24. This feature allows the user to set 3 different levels of security: (0 - 3).
No Setpoint Limits (0) - When this level is selected, no restrictions are activated.
Use Setpoint Limits (1) - When this level is selected, the heat and cool setpoints
can be restricted to preset levels, set in setup steps 24 and 25.
Maximum Heat Setpoint (Setup Step 23) - (35˚ - 99˚).
Minimum Cool Setpoint (Setup Step 24) - (35˚ - 99˚).
Force Program Mode (2) - When this level is selected, the heat and cool setpoints
can be restricted to preset levels, set in setup steps 24 and 25 and the thermostat
is locked into the current mode and the PROGRAM OFF | RUN and FAN buttons are
locked out.
Setpoints Frozen (3) - When this level is selected, the heat and cool setpoints,
the current mode, the FAN button and the PROGRAM OFF | RUN and FAN buttons
are locked.
Scrolling Display (Setup Steps 20, 21)
Setpoint Limits (Setup Steps 22-24)
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Installer Guide 13
Staging & Cycle Timers (Setup Steps 25-31)
Cycles Per Hour (Setup Step 25) - The Cycles Per Hour setting may limit the number of
times per hour your HVAC unit may energize. For example, at a setting of 6 cycles per hour
the HVAC unit will only be allowed to energize once every 10 minutes. The Cycles Per Hour
limit may be overridden and reset by pressing the WARMER or COOLER buttons on the
thermostat. Settings are No Limit, 2, 3, 4, 5, or 6.
Compressor Minimum Off Minutes (Setup Step 26) - This feature allows the user to set
a minimum off time for the compressor. Settings are 5 mins., 3 mins., or 0 mins.
Minimum Heat/Cool Setpoint Difference (Setup Step 27) - This feature allows the user
to set the minimum gap between Heat and Cool setpoints in AUTO mode. Select from 0 to
6. If setup step 2 is not set for AUTO-CHANGEOVER, this step will not appear.
Number of Heat Stages (Setup Step 28) - This setting assures proper stage callouts on
the thermostat display for non-heat pump applications.
Number of Cool Stages (Setup Step 29) - This setting assures proper stage callouts on
the thermostat display for non-heat pump applications.
Number of Compressor Stages (Setup Step 30) - This feature is for heat pump
applications only. This feature allows the thermostat to control 1 or 2 compressor stages
when configured for heat pump. NOTE: When step 60 (Dual Fuel) is set to ON, this step will
not appear and Compressor Stages will automatically be set to 2.
Number of Aux Stages (Setup Step 31) - This feature is for heat pump applications only.
This feature allows for proper Aux Heat Staging. (0-2 stages)
Heat Pump & Dual Fuel (Setup Steps 56-63)
Lockout Heat Pump on Outdoor Temp (setup steps 56 - 57)
This feature stops the heat pump from running below a specified outdoor temperature,
where the heat pump has become inefficient or could damage equipment. A local outdoor
sensor must be used for this feature to work.
Lockout Heat Pump With Outdoor Temp (setup step 56) - When set to ON, the Heat
Pump Lockout feature is enabled. When set to OFF, the heat pump will stage normally.
Heat Pump Lockout Temp (setup step 57) - This step allows the user to set the
temperature at which the heat pump will be locked out. Adjustable from 0 to 75 degrees
Fahrenheit in five degree increments.
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14 Installer Guide
Auxiliary Heat Lockout (setup steps 58 - 59)
This feature allows the auxiliary heat for a heat pump (W2 and W3) to be locked out above
a specific outdoor temperature. These steps will only appear if the thermostat jumper J1 is
set for Heat Pump and J3 is set for Electric Heat. A local outdoor sensor must be used for
this feature to work.
Lockout Aux Heat With Outdoor Temp (Setup Step 58) - When set to ON, the Aux Heat
Lockout feature is enabled. When set to OFF, Auxiliary Heat will stage normally.
Aux Heat Lockout Temp (Setup Step 59) - (20˚ - 75˚ ) This step allows the user to set the
temperature at which Auxiliary Heat will be locked out. Adjustable from 20 to 75 degrees
Fahrenheit. NOTE: This temperature setting cannot be lower than 5 degrees above the
Heat Pump Lockout temperature.
This feature is for heat pump applications only. Steps 56 - 59 will only appear if the
thermostat jumper is set J1 for Heat Pump and J3 is set for Gas Heat.
Dual Fuel On, Off, (Setup Step 60) - On - Tells the thermostat an outdoor temperature or
a demand for third stage heat will be used to stop running the heat pump and only run a
fossil fuel source of heat. NOTE: Once the change to fossil fuel is made, the heat demand
must finish with fossil fuel. Additional heat demands within 10 minutes will also use fossil
fuel, regardless of outdoor temperature.
Setup steps 61-63 will only appear if step 60 is set to ON.
Dual Fuel Changeover on Outdoor Temp (setup step 61) - ON: the change from Heat
Pump to a fossil fuel source of heat will be based on outdoor temperature. (a local outdoor
sensor is required for ‘ON’)
OFF: Heat Pump heating will be terminated when there is a demand for third stage heat
and a switch to fossil fuel will be made.
Dual Fuel Balance Point (setup step 62) - (0˚ - 60˚ ) Specifies the outdoor temperature at
which the heat pump will cease operating and a fossil fuel source of heat is used.
Dual Fuel Changeover Delay (setup step 63) - (0 - 90) Specifies the number of seconds
the heat pump is allowed to continue running after a fossil fuel heat source has been
engaged.
Deadband Settings (Setup Steps 32-41, 77)
The Deadband is the number of degrees or minutes that the thermostat waits
before it initiates each stage of heating or cooling.
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Installer Guide 15
1st Stage Deadband (Setup Step 32) - Specifies the minimum temperature difference
between the room temperature and the desired setpoint before the first stage of heating
or cooling is allowed to turn on (1 - 6 degrees). For example, if the heat setpoint is 68˚ and
the 1st Stage deadband is set to 2 degrees, the room temperature will need to fall to 66˚
before the heat turns on.
2nd Stage Deadband (Setup Step 33) - Specifies the additional minimum temperature
difference after the first stage turns on before the second stage is activated. (0˚ - 10˚)
3rd Stage Deadband (Setup Step 34) - Specifies the additional minimum temperature
difference after the second stage turns on before the third stage is activated. (0˚ - 10˚)
4th Stage Deadband (Setup Step 35) - (Two Stage heat pump only) - Specifies the
additional minimum temperature difference after the third stage turns on before the final
stage of strip heat is activated (0˚ - 10˚).
Minutes Between 1st and 2nd Stage (Setup Step 36) - Specifies the minimum time (in
minutes) after the first stage turns on before the second stage can turn on. (0 - 60)
Minutes Between 2nd and 3rd Stage (Setup Step 37) - Specifies the minimum time (in
minutes) after the second stage turns on before the third stage can turn on. (0 - 60)
Minutes Between 3rd and 4th Stage (Setup Step 38) - Specifies the minimum time (in
minutes) after the third stage turns on before the final stage can turn on. (0 - 60)
Second Stage Turnoff Point (Setup Step 39) - Specifies whether second stage will turn
off at first stage deadband or remain on until the room temperature demand is satisfied.
Choose between Deadband or Setpoint.
Third Stage Turnoff Point (Setup Step 40) - Specifies whether third stage will turn off
at second stage deadband or remain on until the room temperature demand is satisfied.
Choose between Deadband or Setpoint.
Fourth Stage Turnoff Point (Setup Step 41) - Specifies whether fourth stage will turn
off at third stage deadband or remain on until the room temperature demand is satisfied.
Choose between Deadband or Setpoint.
Comfort Recovery (Setup Step 77) - With Comfort Recovery on, the thermostat will
attempt to reach the Morning setpoint temperature at the exact time programmed into
the thermostat. Comfort Recovery, only works when the thermostat enters the Morning
mode from the Night mode. For example, if the Morning program is set for 6am at 72°F
heating and 75°F cooling, the thermostat will turn the system on before 6am in an effort
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16 Installer Guide
to bring the temperature to its correct setting at exactly 6am. The thermostat learns from
experience, so please allow 4-8 days after a program change or after initial installation to
give Comfort Recovery time to adjust. If used with a heat pump, electric strip heat will be
disabled while Comfort Recovery is active.
Fan Operation (Setup Steps 42-45, 64)
Fan Program (Setup Step 42) - This feature allows the fan to be programmed to turn on
automatically for a specified amount of time during the day. If this feature is set to ON, the
next three steps will appear.
Minutes of Fan Runtime Per Hour (Setup Step 43) - This setting specifies the number of
minutes (0 - 60, in increments of 5) that the fan will run at the top of each hour.
Fan Program Start Time (Setup Step 44) - This setting specifies the hour of each day
when the programmable fan feature will start.
Fan Program Stop Time (Setup Step 45) - This setting specifies the hour of each day
when the programmable fan feature will stop. NOTE: Setting the Stop Hour equal to the
Start Hour will cause the fan to run 24 hours a day.
Fan Off Delay in Seconds (Setup Step 64) - This feature allows the user to increase
the cooling or electric strip heating efficiency of the system. The thermostat may be
programmed to continue running the fan after a call for cooling or electric strip heating
has been satisfied. This delay can be set for 0, 30, 60, 90, or 120 seconds. If set to 0, the
fan will not run after a call for cooling or electric strip heating has been satisfied.
Remote Sensor Operation (Setup Steps 46-48, 65)
Wired Sensor Type (Setup Step 46) - Specifies the use of the connected, wired sensor.
The choices are: Remote or Supply. The remote option allows control to the sensor, the
supply is for monitor only.
Control To Temp Source (Setup Step 47) - This feature allows the user to specify which
temperature sensor source the thermostat will use to measure room temperature.
Thermostat: Uses the internal thermostat sensor only.
Remote Sensor: Uses wireless or wired sensors only.
Average of Remote Sensor and Thermostat: Averages the temperatures of the
remote sensor(s) and the thermostat.
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Installer Guide 17
Wireless Remote To Use (setup step 48) - Specifies which single wireless remote sensor
is to be used for control. This step only appears when prior step setting is Wireless
Remote.
Fahrenheit or Celsius (Setup Step 65) - This feature allows the thermostat to display
temperature in Fahrenheit or Celsius.
NOTE: If a remote sensor is being used, the degree icon on the large room temperature
display will blink.
Humidity Control (Setup Steps 49-55, 80-82)
Humidity Only With Heat (Setup Step 49) - When this step is set to ON, Humidity will not
run without a demand for Heat.
Fan with Humidity Demand (Setup Step 50) - Specifies if the fan should be turned on
with a demand for Humidity. (This step will only appear if step 47 is set to OFF.)
Fan with Dehumidify Demand (Set up Step 51) - Specifies if the fan should be turned on
with a demand for Dehumidify. (This step will only appear if step 50 is set to OFF.)
Humidity Setpoints (Setup Step 52) - Specifies whether the Humidity setpoint should
be entered by the user (MANUAL) or determined automatically by outdoor temperature
(AUTO). An outdoor temperature sensor is required for the AUTO setting. If the outdoor
temperature sensor stops reading while this step is set to AUTO, the Humidity setpoint will
revert automatically to a setting of 15 percent.
Cool To Dehumidify (Setup Step 53) - Specifies if the cooling equipment is allowed to
turn on exclusively to lower room humidity. (If set to OFF the following two steps will
not appear.)
Max Dehum Overcool (Setup Step 54) - Specifies how many degrees below the Cool
setpoint the air conditioning will run to satisfy a Cool to Dehumidify demand during
occupied periods. (0˚ - 20˚)
Reheat Operation With Cool To Dehumidify (Setup Step 55) - Specifies if electric strip
heat is allowed to turn on during a Cool to Dehumidify demand to help maintain desired
room temperature. This step is not available if Electric Heat is not present.
Humidity Output Polarity (Setup Step 80)
Humidity Output Normally Open - means no voltage is sent to the HUM output
when there is no demand for humidity.
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18 Installer Guide
Humidity Output Normally Closed - means voltage is sent to the HUM output when
there is no demand for humidity.
Dehumidify Output Polarity (Setup Step 81)
Dehumidify Output Normally Open - means no voltage is sent to the DEHUM
output when there is no demand to dehumidify.
Dehumidify Output Normally Closed - means voltage is sent to the DEHUM output
when there is no demand to dehumidify.
Dehumidify Only with Cooling (Setup Step 82) - When set to ON, Dehumidify will only
turn on with a 1st stage cooling demand.
Auxiliary Output (Setup Steps 66-74)
The thermostat is equipped with a programmable auxiliary output. This output can be
configured to be controlled from a variety of sources.
Aux Output Polarity (Setup Step 66) - Specifies if the Auxiliary output will be Open
(Normally Open) or Closed (Normally Closed).
Aux Output (Setup Step 67) - Specifies which source will control the Aux output.
Choices are:
Time - Uses the internal clock of the thermostat.
Temp - Uses one of three temperature sources.
External - The Auxiliary Output is controlled from an external source,
such as a mobile app.
Error - Uses the thermostat’s error processing to signal an active error condition.
Free Cooling - Drives a damper to bring fresh air in from outdoors.
Venting - Drives a damper to exhaust inside air to the outside.
Auxiliary Output Programming by Time (Setup Steps 68-72)
If TIME is selected for the Aux Output, the following setup steps will appear:
Aux Output Days (Setup Step 68) - Specifies if the Aux Output will be single day (1 DAY),
weekday/weekend (5/1/1 DAY), or seven day (7 DAY) programmable.
Day Of Week To Program (Setup Step 69) - Specifies which day of week to program.
Aux Output Start Time (Setup Step 70) - Specifies the time of each day when the
Aux output will turn on.
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Aux Output Stop Time (Setup Step 71) - Specifies the time of each day when the
Aux output will turn off.
Copy (Setup Step 72) - This step only appears if Aux Output Days (Setup Step 58) is set
for 7 DAY programmable output days. Press COOLER and then OUTDOOR to copy. Press
WARMER and then OUTDOOR to program another day with a different setting.
Auxiliary Output Programming by Temp (Setup Steps 73, 74)
If TEMP is selected for the Aux Output, the following setup steps will appear:
Aux Output Temp Source (Setup Step 73) - Specifies what temperature source will be
monitored for controlling the programmable output. The options are:
Thermostat - Temperature is monitored from the thermostat sensor.
Outdoor Sensor - Temperature is monitored from the Outdoor temperature sensor.
Wired Remote - Temperature is monitored from a wired sensor
connected to the Remote Sensor terminals.
Aux Output Trigger Point Temp (Setup Step 74) - Specifies the temperature from the
above selected source above which the Aux Output is triggered. A non-adjustable two
degree deadband is applied to avoid frequent triggering. The ‘N.O.’ (Normally Open) or
‘N.C.’ (Normally Closed) function (Setup Step 66) can be altered to make the output trigger
below the set temperature. Temps are adjustable from 0˚ - 120˚ Fahrenheit.
Venting/Free Cooling (Setup Steps 67, 75-76)
Aux Output (Setup Step 67) - Specifies which source will control the Aux output.
Choices are:
Free Cooling - Drives a damper to bring fresh air in from outdoors.
Venting - Drives a damper to exhaust inside air to the outside.
Venting
To use Venting, setup step 67 must be set to ‘VENTING’.
The Venting feature allows your HVAC system to exhaust air from inside to the outside,
when there is a cooling call. Press FAN twice to activate Venting. While Venting is active,
heating and cooling are disabled. The installation of a Venting damper will be required.
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