INSTALLATION MANUAL
HxTM TOUCH SCREEN THERMOSTAT
MODELS: S1-THXU280B & S1-THXU280W
(QHUJ\6DYHU
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
WIRING COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INITIAL POWER-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SERVICE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SERVICE SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
LIST OF FIGURES
Control Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
High Level Wiring Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Communicating Plug Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Wiring Diagram (Fully Communicating System Components) . . . . . . . 4
Wiring Diagram (Variable Capacity System) . . . . . . . . . . . . . . . . . . . . 4
Wiring Diagram (Modulating Communicating Furnace,
Non-Communicating AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Outdoor Communicating Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Variable Speed Capacity AC/Heat Pump Control . . . . . . . . . . . . . . . . 4
Outdoor Control Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Communicating Field Wiring
(Variable Capacity outdoor unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Multi-wire Terminal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Communicating Indoor Controls - Air Handler . . . . . . . . . . . . . . . . . . . 6
Communicating Indoor Controls - Furnaces . . . . . . . . . . . . . . . . . . . . 7
Indoor Screw Terminal Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Furnace Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Air Handler Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Furnace Fan Powered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Air Handler Fan Powered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Auto Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ID Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Found Mod Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
OD Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
YGVI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Heat Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electric Heat Size - W1 4.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electric Heat Size - W2 12.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Screen Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Screen System Set Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Vent with Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Screen Log Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Screen Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
LIST OF TABLES
Content List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Terminal Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Outdoor Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Indoor Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Equipment Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Float Switch Settings (AHV, AVC, and
2-Stage Variable Speed ECM Furnace) . . . . . . . . . . . . . . . . . . . . . . . 14
Auxiliary Settings (2-Stage Variable Speed ECM Furnace) . . . . . . . . 14
Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Critical Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Efficiency Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ventilation Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION I: GENERAL
SECTION II: SAFETY CONSIDERATIONS
The thermostat is designed to control communicating system components. In general, these components are the variable speed modulating
furnace, 2-stage variable speed ECM furnace and variable speed air
handler, premium 15 & 18 SEER air conditioners or premium 15 & 18
SEER heat pumps and variable capacity system.
This is a safety alert symbol. When you see this symbol on labels
or in manuals, be alert to the potential for personal injury and equipment
damage.
14
15
18
19
19
20
20
Understand and pay particular attention to the signal words DANGER,
WARNING, and CAUTION.
While the communicating system has been designed for easy installation, this document will provide the installer with a more detailed explanation of installation process.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
In order to utilize the complete feature set available, the HxTM Touch
Screen Thermostat must be connected to Wi-Fi.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
For ease of installation and to ensure that the thermostat has the latest
software update, please be sure that Wi-Fi access is available (via
homeowner Wi-Fi network or mobile hotspot).
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property damage.
Johnson Controls Unitary Products
5271253-UIM-B-0617
5271253-UIM-B-0617
INSPECTION
The following list details the parts included in this kit. Examine the kit to
insure that all parts are included.
TABLE 1: Content List
Item
QTY.
1
1
Thermostat Display
2
1
Thermostat Base
<(6
Description
3
1
Wall Plate
4
2
Wire Connectors
5
2
Screws
6
2
Drywall Anchors
12
12
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12
7
1
Homeowner Quick Reference Guide
8
1
Installer Conventional Quick Reference Guide
9
1
Installer Communicating Quick Reference Guide
FIGURE 1: Control Location
Do not install the thermostat where it can be affected by:
10
1
Custom Skins & Wire Stickers
11
1
Remote Sensor Connector
LIMITATIONS
The thermostat primary function is to command a system containing
communicating product.
Exceptions to this rule are:
• Installing a communicating variable speed modulating furnace
with a non-communicating air conditioner. In this case the variable speed modulating furnace relays 24 VAC outputs to the noncommunicating air conditioner (per communicated commands by
the thermostat.
• Installing communicating controls in non-communicating UPG
products.
• Installing Communicating Interface Control (which converts communicating commands into 24VAC outputs).
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• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Radiant heat from sun or appliances
• Concealed pipes and chimneys
• Unconditioned areas such as an outside wall
MOUNTING THE THERMOSTAT
For most installations, mounting thermostat can be done following some
very basic installation steps outlined below. However, there may be
some cases where the installer is not able to penetrate the wall where
mounting the thermostat, or there may be an application where the thermostat/control being replaced has left a larger hole than needed for
installation of this control. For these and other applications, (including
installation with a vertical j-box) an installer can obtain an accessory
wall plate.
SECTION III: INSTALLATION
The intention of this document is to ensure proper connection/setup of
the various communicating system components. These instructions
should be used in conjunction with the instructions provided with indoor,
outdoor and accessory equipment of which the thermostat will command.
This installation instruction contains (in part) setup, operation, and troubleshooting.
When Installing this Product.
1. Read all instructions carefully before beginning installation. Failure
to follow these instructions can create hazardous situations or damage the product.
2. Make certain the product is suitable for your application by checking
all ratings on the product and in the instruction provided.
3. Installer must be a trained, experienced service technician.
LOCATION
Install the thermostat at or around 5 ft. (1.5m) above the floor in an area
with good circulation of room temperature. See Figure 1.
!
WARNING
Voltage Hazard: Live wires can cause electrical shock or equipment
damage. Disconnect power before beginning installation.
1. If an existing thermostat or control is being replaced:
a. Disconnect wires from existing control.
b.
Remove existing control from wall.
c.
Properly discard or recycle old control.
NOTICE
Mercury is a hazardous substance, if existing thermostat or control
contains any mercury, it MUST be disposed of properly. The thermostat does not contain mercury.
2. Mark on the wall where the thermostat will be mounted (standard
height is 5 feet from the floor).
NOTICE
If an existing thermostat was in place, it may be ideal to use the same
location for the thermostat.
2
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5271253-UIM-B-0617
INSTALLING NEW THERMOSTAT
3. Position the thermostat base against the wall and determine if the
wall plate will completely cover the footprint of the current thermostat.
4. Position the thermostat base against the wall (or wall plate if used)
and determine if the new screw locations align with prior locations.
5. If base does not align with existing anchor holes, mark new screw
locations with a pencil.
• Drywall: Drill 3/16" hole for the anchor & install.
• Plaster: Drill 7/32” hole for the anchor & install.
6. If the Remote Sensor Connector is to be installed, plug in, pull wires
through and connect wires to Ambient Sensor (S1-02542683000)
using wire connectors (provided).
7. Pull wires through opening in base and secure base (and wall plate)
to the wall using provided screws.
Though not required for operation, it is recommended that the thermostat be level.
8. One by one, connect each wire by pushing down on the color
coded quick connect tab, insert the wire into the connector opening
and release the tab to complete.
9. Align the thermostat face with hinge guide on top of the back plate
and snap forward into place.
The thermostat may be wired conventionally. For wiring diagrams,
please refer to the “Installer Conventional Quick Reference Guide”
that comes with the thermostat.
SECTION IV: WIRING COMMUNICATION
!
WARNING
Special (shielded) cable is not typically required. As with all communicating devices, it is a good idea to keep wiring at least one foot away
from large inductive loads. Examples of large inductive loads include:
electronic air cleaners, motors, etc. If these wiring practices are
ignored, it may introduce electrical interference (noise) which can cause
erratic system operation.
NOTICE
There may be installation applications where large inductive loads
cannot be avoided. In these cases shielded wire would be desired to
ensure proper system functionality.
SYSTEM WIRING OVERVIEW
IMPORTANT
The communicating system requires 4 wires to operate. If installing a
communicating system, be sure to supply at least 4 wires to each
unit/control. Below is a simple diagram showing the ideal wiring path.
The system is connected by four wires. Two of the wires are used to
bring power into the individual controls (R and C) and two of the wires
are used for serial communication (A+ and B-). The plug/harness that is
provided in the kit should be used on the outdoor control.
IMPORTANT
If this thermostat is being used with Communicating Outdoor
equipment other than variable capacity, the communicating plug
harness S1-02542694000 is required. See Figure 3.
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If using with variable capacity outdoor equipment, DO NOT connect
to the “R” terminal of outdoor unit control board.
All wiring must comply with local electrical codes and ordinances. Refer
to Table 1 for terminal designations.
TABLE 2: Terminal Designations
Signal
Data
Definition
Label
Non-inverted signal
A (+)
24 VAC (Hot)
R
24 VAC (Common)
C
Inverted signal
B (-)
Low voltage power hot
Low voltage power common
and data ground
Data
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Standard 18 awg thermostat wires can be used to connect the communicating system.
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FIGURE 3: Communicating Plug Harness
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FIGURE 4: Wiring Diagram (Fully Communicating System
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A new communicating heat pump or air conditioner (denoted by a “-C”
in the model number) will have two communicating plug terminals (as
shown in Figure 8).
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Plugging the hole in the wall with nonflammable insulation can help
prevent drafts from adversely affecting temperature control.
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FIGURE 5: Wiring Diagram (Variable Capacity System)
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FIGURE 7: Outdoor Communicating Terminals
FIGURE 6: Wiring Diagram (Modulating Communicating Furnace,
Non-Communicating AC)
Thermostat Wiring
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WARNING
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ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury, death, or
equipment damage. Before installing, modifying, or servicing system,
the main electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and tag switch
with a suitable warning label.
1. Turn off all power to equipment.
2. Remove thermostat front plate.
3. Match and connect thermostat wires to proper terminals on thermostat mounting back plate.
4. Push any excess wire back into the wall.
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FIGURE 8: Variable Speed Capacity AC/Heat Pump Control
4
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5271253-UIM-B-0617
Communicating Non-Variable Capacity Models
!
6. Set the appropriate jumper settings to insure proper control functionality (See table below).
WARNING
TABLE 3: Outdoor Jumper Settings
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury, death, or
equipment damage. Before installing, modifying, or servicing system,
the main electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and tag switch
with a suitable warning label.
1. Disconnect all high voltage power from system.
2. Remove factory installed low voltage harness.
3. Plug the communication harness (S1-02542694000) into the communication port on the outdoor control.
4. Connect thermostat wire using wire connectors from the indoor
control to the communication harness wires.
Unit Control
Jumpers which must be set
Fossil Fuel
Hot Heat Pump
Switch Point
Balance Point (BP)
Heat Pump
Low Temperature Cutout (LTCO)
Y2 Lock
Compressor Delay
Defrost Curve
Air Conditioner
No jumpers to set
Variable Speed Capacity AC/HP No jumpers to set
NOTICE
When connecting the loose ends of the wire harness, be sure to note
color for each of the four wires (A+, R, C, B-).
5. Set the wires which are now connected (with wire connectors) into
the Junction Box of the control housing (pictured below).
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NOTICE
For installation of a non-communicating outdoor unit with the thermostat, the installer should reference the indoor and outdoor unit installation instructions. If information is not provided, there may be a need
for a Communicating Interface Control Field Kit (S1-33102953000).
Variable Capacity Models
1. Disconnect all high voltage power from system.
2. Locate factory installed low voltage wire harness at bottom of control box. Connect low voltage wiring together using wire connectors.
See wiring diagram show in Figure 10.
!
WARNING
DO NOT connect the “R” terminal from the thermostat to the unit control board.
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FIGURE 9: Outdoor Control Housing
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FIGURE 10: Typical Communicating Field Wiring (Variable Capacity outdoor unit)
Johnson Controls Unitary Products
5
5271253-UIM-B-0617
Indoor Control Wiring
WIRE
CONNECTOR
A communicating furnace or air handler (denoted by a “-C” in the model
number) will arrive with a control outfitted for communication. The communicating indoor controls will have two communicating terminals. One
will be a communicating plug input and the other will be a screw terminal (as shown in Figure 12 & 13). DO NOT place more than on wire
under each screw terminal See Figure 11.
A+
NOTE
ENSURE ONLY ONE WIRE UNDER
TERMINAL SCREW.
TO CONNECT MORE THAN ONE WIRE:
THERMOSTAT
1. CONNECT ONLY TERMINAL
END OF 6” WIRE PIGTAIL,
C
B-
IMPORTANT
Do not place more than one wire under any single communication terminal screw (there are four communication terminal screws). If more
than one wire must be connected to a terminal screw, attach only the
terminal end of a one wire pigtail no longer than 6“, and use a wire
connector to connect the other end of the pigtail to the other wires.
Failure to do this will result in nuisance communication error faults.
See Figure 11.
AIR HANDLER
COMMUNICATING
CONTROL BOARD
TERMINAL
SCREW
2. USE WIRE CONNECTOR
B- TO
CONNECT OTHER END OF PIGTAIL
TO OTHER WIRES.
A+
R
C
B-
OUTDOOR UNIT
INDOOR UNIT
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FIGURE 11: Multi-wire Terminal Connection
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FIGURE 12: Communicating Indoor Controls - Air Handler
6
Johnson Controls Unitary Products
5271253-UIM-B-0617
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FIGURE 13: Communicating Indoor Controls - Furnaces
!
WARNING
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury, death, or
equipment damage. Before installing, modifying, or servicing system,
the main electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out and tag switch
with a suitable warning label.
1. Disconnect all high voltage power from system.
2. Screw the 4 wires from the thermostat and outdoor control to the
communicating screw terminal (8 wires in all). Be sure that all wires
are connected respectively (A+ = A+, R = R, C = C, B- = B-).
TABLE 4: Indoor Jumper Settings
Unit Control
Heat Pump
Modulating Furnace
Heat
Cool
Air Handler (AHV)
Adjust
AC/HP
Heat
Cool
Air Handler (AVC, AVV)
Delay
Adjust
Hum Stat
AC/HP
Heat/No Heat
The furnace control may be labeled so that C = GND.
Heat
Cool
Air Handler (AV/MV)
NOTICE
For installation of a non-communicating indoor unit with the thermostat, the installer should reference the indoor and outdoor unit installation instructions. If information is not provided, there may be a need
for use of an Communicating Interface Control Field Kit(S133102953000).
Delay
Hum Stat
NOTICE
Set the appropriate jumper settings to insure proper control functionality
See Table 4.
Humidistat
Zone Control
NOTICE
If the installer finds that the indoor control screw terminals are presenting a challenge, twist on wire connections can be used to connect
the controls on the outside of the indoor unit.
Jumpers which must be set
Delay
Adjust
Hum Stat
AC/HP
Heat
Cool
2-Stage Variable Speed Furnace
Delay
Adjust
Hum Stat
Heat Pump
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7
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FIGURE 14: Indoor Screw Terminal Location
HUMIDIFIER CONNECTION
A bypass or fan powered humidifier may be installed with the communicating system. The installer should physically install the humidifiers
according to the instructions that are included with the humidifier being
installed. For information on the wiring of the humidifier, see below diagrams.
NOTICE
Do Not Use a traditional humidistat to control humidifier operation. If
a humidifier is installed, the thermostat will operate humidifier.
Bypass Humidifiers
Communicating Furnace
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8
Johnson Controls Unitary Products
5271253-UIM-B-0617
SECTION V: INITIAL POWER-UP
Fan Powered Humidifiers
Communicating Furnace
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Failure to follow this caution may result in equipment damage.
Do not power the system until you have confirmed that the wiring has been
completed correctly (per this document).
Before applying power, check to make sure that all wiring has been
completed as instructed through the installation instructions of the
equipment on the system.
Once power is applied, the installer should return to the thermostat to
complete the installation process.
POWER-UP SEQUENCE
The following screens will load upon initial power up.
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FIGURE 17: Furnace Fan Powered
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CAUTION
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Do not exceed the recommended 1 amp limit on the 120 VAC Plug or
it could cause damaged to the Contactor and Control Board.
Communicating Air Handler
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SYSTEM CONFIGURATION
After selecting the “Next” button, the Touch-Screen Thermostat will
begin a routine to “discover” the system components and identify the
Indoor and Outdoor Communicating Equipment.
INDOOR EQUIP TYPE
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FIGURE 18: Air Handler Fan Powered
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A0622-001
FIGURE 19: Auto Setup
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SEARCHING FOR CONTROLS...
BACK
WARNING
Do not exceed the recommended 1 amp limit on the 120 VAC Plug or
it could cause damage to the relay on control board.
A0623-001
FIGURE 20: ID Search
Johnson Controls Unitary Products
9
5271253-UIM-B-0617
INDOOR EQUIP TYPE
HEAT KIT
FOUND: MODULATING FURNACE
6HKx6500206
BACK
BACK
NEXT
DEFAULT
NEXT
A0627-001
A0624-001
FIGURE 24: Heat Kit
FIGURE 21: Found Mod Furnace
OUTDOOR EQUIP TYPE
ELEC HEAT SIZE - W1
SEARCHING FOR CONTROLS...
4.2 KW
BACK
BACK
DEFAULT
NEXT
A0628-001
A0625-001
FIGURE 25: Electric Heat Size - W1 4.2
FIGURE 22: OD Search
OUTDOOR EQUIP TYPE
ELEC HEAT SIZE - W2
FOUND: YGVI
BACK
12.5 KW
NEXT
BACK
DEFAULT
NEXT
A0629-001
A0626-001
FIGURE 23: YGVI
FIGURE 26: Electric Heat Size - W2 12.5
The installer will be directed through screens that are dependent upon
the system being configured.
IMPORTANT
Heat kit configuration screens will appear in a communication system
that includes a communicating variable speed air handler (indicated by
a “-C” in the model number).
If you have a system which has a heat kit installed, but did not see the
heat kit configuration screens, be sure to check the air handler control
to insure that the heat kit jumper is on “Heat”. This only applies to the
AV/MV Air Handler.
10
Johnson Controls Unitary Products
5271253-UIM-B-0617
They system summary screen will appear in every system install. This
screen displays the equipment configuration.
NOTICE
SETTINGS
The modulating furnace airflow during heating is still controlled by the
ignition control not the thermostat.
SVC
SECTION VI: SERVICE MODE
72
ENTERING SERVICE MODE
To enter the service portion of the control press and hold (for 5 seconds) on the service van located on the settings screen. See Figure 23.
A0630-001
FIGURE 27: Screen Settings
SYSTEM SETTINGS
Depending on the equipment that has been installed, the system settings screen will display different user options.
TABLE 5: Equipment Settings
Variable
Default
Settings
Explanation
Auto Allowed
Yes
Yes or No
This enables or disables the ability of the Auto Mode Feature.
Prog or Non-Prog Prog
Fahrenheit or
Celsius
°F
Prog or Non-Prog
Allows the thermostat to run a schedule or not
°F or °C
Allows the thermostat temperatures to be
displayed in Fahrenheit or Celsius
Smart Recovery
Yes
Yes or No
Smart recovery is used in programmable mode. The controller
initiates equipment operation, if required before the start time
of the program schedule day part. This is done to reach the
program schedule event's desired temperature setpoint at the
time the even occurs, rather than after.
Fan On with W
No
Yes or No
Supplies a fan output demand as soon as
a W1 or W2 output demand is active.
Indoor Temp
Offset
0°
-5°, -4°, -3°, -2°, -1°, 0°,
1°, 2°, 3°, 4°, 5°
Allows the user to calibrate the displayed temperature
from the measured temperature in the control
Indoor Hum Offset 0%
-5%, -4%, -3%, -2%, -1%,
0%, 1%, 2%, 3%, 4%, 5%
Allows the user to calibrate the displayed humidity
from the measured humidity in the control
Auto Changeover 30 MIN
5 MIN, 10 MIN, 15 MIN,
20 MIN, 25 MIN, 30 MIN
Sets the minimum time between switching from heat-to-cool
from cool-to-heat demands when operating in Auto Mode.
Cool Lockout
OFF
OFF, 55°, 60°, 65°, 70°, 75°, 80°
When enabled, will not allow cooling operation when
the outdoor temperature drops below the setting.
Time Between
Fuel Types
15 MIN
10 MIN, 15 MIN, 20 MIN, 25 MIN
Sets the minimum time limit between switching
from one fuel type to another
Cycles per Hour
4
4 or 6
This timer is set to 15 or 10 minutes. This time must
elapse from the start of one cycle before another can start.
Humidifier
No
Yes or No
The control will only activate the humidifier if there
is a demand for both heating and humidity.
Dehumidifier
No
NO, OVERCOOL 1°F,
OVERCOOL 2°F, OVERCOOL 3°F,
The control will continue to run cooling up to 3 degrees
below set point to meet humidity setting of the home
Max Heat
Setpoint
88°
50°F to 88°F
Choose the maximum heating setpoint that is available.
Min Cool Setpoint 52°F
52°F to 90°F
Choose the minimum cooling setpoint that is available
AUX Heat Lockout
OFF, 5°, 10°, 15°, 20°, 25°,
30°, 35°, 40°, 45°, 50°, 55°
If the auxiliary heat lock out temperature setting is not OFF
and the outdoor air temperature is greater than auxiliary heat
lock out temperature, then the Aux Heat (W1 & W2) outputs
shall not turn on.
OFF
Continued on next page.
Johnson Controls Unitary Products
11
5271253-UIM-B-0617
TABLE 5: Equipment Settings
OFF, 5°, 10°, 15°, 20°, 25°,
30°, 35°, 40°, 45°, 50°, 55°
If a setting of OFF is selected, The heating equipment cycle
shall always start with the heat pump regardless of the outdoor
air temperature. If a lockout temperature is selected and the
outdoor air temperature is less than the selected temperature,
the heating cycle is started with the AUX Heat source. If the
outdoor air temperature is equal to or greater than the selected
temperature, the heating cycle is started with the heat pump.
HP Lockout
OFF
Stage Delay
10 MIN (120 MIN for 2 MIN - 120 MIN
Variable Speed)
(in 1 Minute increments)
The minimum amount of time the current stage must be
energized before staging up to the next stage of capacity
Forced Stage Up
30 MIN(360 MIN for OFF - 360 MIN
Variable Speed)
(in 10 Minute increments)
If time in a current demanded stage reaches the forced stage up
selected time, the thermostat will stage up to the next available
stage of capacity (even if differential demand is not met).
Differential
0.5°F
This is the required difference between the current room
0.3°F,0.4°F, 0.5°F, 0.6°F, 0.7°F, 0.8°F,
temperature and the setpoint before demand is initiated.
0.9°F, 1.0°F, 1.1°F, 1.2°F, 1.3°F, 1.4°F,
This value is additive fore each additional stage of equipment
1.5°F, 1.6°F, 1.7°F, 1.8°F, 1.9°F, 2.0°F
being demanded.
Air Filter
Reminder
3000 HRS
OFF to 15,000 HRS
Defines a chosen number of hours before a System Event will
occur to remind the homeowner to change the indoor air filter.
UV Lamp
Reminder
OFF
OFF to 15,000 HRS
If a UV Lamp is installed, this enables a chosen
number of hours before a System Event will occur to
remind the homeowner to clean the UV Lamp.
EAC Reminder
OFF
OFF to 15,000 HRS
If an EAC is installed, this enables a chosen
number of hours before a System Event will occur to
remind the homeowner to clean the EAC Reminder.
Line Frequency
60 HZ
50 HZ or 60 HZ
This is used to increment operation timers within the
thermostat to ensure timing accuracy and to allow for
preemptive control of a power-out situation for the thermostat.
Brands
York
None, York, Coleman, Luxaire,
Champion, Fraser-Johnson
This will be displayed on the Sleep Screen.
Efficiency Fault
Disabled
Disabled or Enabled
Faults that cause reduced system output but does not stop the
equipment from running. Disabled faults will be logged but will
not be displayed on the Home Screen Banner.
Warning Fault
Disabled
Disabled or Enabled
Disabled faults will be logged but will not be displayed on the
Home Screen Banner.
Status Fault
Disabled
Disabled or Enabled
Fault that does not harm or stop equipment operation.
Disabled faults will be logged but will not be
displayed on the Home Screen Banner.
Defrost Temp
50°F
50°F, 60°F, 70°F, or 80°F
The temperature at which defrost is terminated
Comfort/Efficiency Efficiency
Comfort or Efficiency
This is used to determine how quickly the
compressor will ramp up to meet setpoint.
Demand
Response
Disabled, Enabled (Open),
Enabled (Closed)
This is used to enable or disable the demand response feature.
Disabled
Demand Resp
Action
4°F
4°, 6°, 8°, 10°, Shut Down
When Demand Response is active, the setpoint will update to
the selected temperature value or the equipment will shut down.
The setpoint can be raised or lowered when the event is active,
but the temperature selection differential must be maintained
Heating Airflow
Adjust
0%
-10%, -5%, 0%, 5%, 10%
Allows the heating airflow CFM to be
adjusted by plus/minus 5 or 10%.
Cooling Airflow
Adjust
0%
-10%, -5%, 0%, 5%, 10%
Allows the cooling airflow CFM to be
adjusted by plus/minus 5 or 10%.
Climate
Normal
Normal, Humid, Dry
These settings are not implemented in Heat Mode. Selecting a
Dry climate will increase the current CFM by 10%. Selecting a
Humid climate will decrease the current CFM by 10%.
Delay Profiles
Normal
Normal, Humid, Dry, Temperate
These profiles will run in COOL mode and are not implemented
in heating. Each profile is designed to accommodate the
original environment where the equipment is installed.
Humidistat
Jumper
Yes
Yes or No
This setting will affect COOL Mode only. When the jumper
is set to YES and there is a demand for dehumidification
then the indoor CFM will be reduced by 15%.
12
Johnson Controls Unitary Products
5271253-UIM-B-0617
TABLE 6: Float Switch Settings (AHV, AVC, and 2-Stage Variable Speed ECM Furnace)
Variable
Float Switch
Default
Settings
Explanation
Disabled
Enabled (Open),
Enabled (Closed), Disabled
This screen allows the user to activate the optional condensate float switch
(S1-ACS2) and to determine how the outdoor equipment will shut down.
TABLE 7: Auxiliary Settings (2-Stage Variable Speed ECM Furnace)
Variable
Default
Settings
Explanation
AUX Switch
Disabled
Enabled (Open),
Enabled (Closed), Disabled
This screen allows the user to activate the optional dry relay contact
which is supplied by the utility company.
AUX Switch: Heat
Stage Down
Stage Down or Shut Off Comp
This screen allows the user to determine the equipment functionality
when the AUX Switch is activated.
AUX Switch: Cool
Stage Down
Stage Down or Shut Off Comp
This screen allows the user to determine the equipment functionality
when the AUX Switch is activated.
FAULTS & SYSTEM EVENTS
This screen allows the user to activate whether faults will be displayed
on the home screen. Equipment faults will fall into 1 of the following 4
categories.
TABLE 8: Faults
SYSTEM SETTINGS
EFFICIENCY FAULTS
DISABLED
WARNING FAULTS
DISABLED
STATUS FAULTS
DISABLED
Variable
Default
Settings
Explanation
Critical
N/A
N/A
Faults that stop
equipment operation
Efficiency
Disable
Disable or
Enable
Faults that cause reduced
system output but does not
stop the equipment from running
Warning
Disable
Disable or
Enable
Status
Disable
Disable or
Enable
Fault that does not harm or
stop equipment operation.
A0631-001
FIGURE 28: Screen System Set Faults
Johnson Controls Unitary Products
13
5271253-UIM-B-0617
TABLE 9: Critical Faults
CRITICAL Fault (Displayed Text)
Thermostat
COMM ERROR OD CTRL
COMM ERROR ID CTRL
COMM ERROR BACK PCB
Air Handler (AHV or AVC)
INDOOR: NO MODEL PLUG
INDOOR: CONTROL FAILURE RECOVERY
INDOOR: CONTROL FAILURE
Modulating Furnace
FURNACE: FLAME W/OUT POWER
FURNACE: HIGH LIMIT OPEN
FURNACE: ROLLOUT OR AUX OPEN
FURNACE GAS VALVE FAILURE
FURNACE: SUPPLY PWR REVERSED
FURNACE: GAS VALVE CIRCUIT SHORT
FURNACE: BLOWER FAILURE
FURNACE: NO MODEL PLUG
FURNACE: JUMPER ERROR
FURNACE: PRESSURE SWITCH OPEN
FURNACE: IGNITION FAILED
FURNACE: MULTI FLAME DROPOUTS
2-Stage Furnace
FURNACE: FLAME W/OUT POWER
FURNACE: LIMIT/ROLLOUT OPEN
FURNACE: LIMIT/ROLLOUT OPEN 15 MIN
FURNACE: PRESSURE SWITCH LOCKOUT
FURNACE: SUPPLY PWR REVERSED
FURNACE: GAS VALVE CIRCUIT SHORT
FURNACE: LIMIT/ROLLOUT OPEN 5 MIN
FURNACE: NO MODEL PLUG
FURNACE: CONTROL FAILURE
FURNACE: PRESSURE SWITCH OPEN
FURNACE: IGNITION FAILED
FURNACE: MULTI FLAME DROPOUTS
Indoor AUX
INDOOR: CONTROL FAUILURE
INDOOR: LOW VOLTAGE (<16VAC)
INDOOR:X/L INPUT – FLASH 2
INDOOR:X/L INPUT – FLASH 4
Outdoor AUX
OUTDOOR:HPS LOCKOUT
OUTDOOR:CONTROL FAILURE
OUTDOOR:LPS LOCKOUT
OUTDOOR:LOW VOLTAGE(< 16VAC)
OUTDOOR:COMPRESSOR MISWIRE
Continued on next page.
14
Description
There was no response from the device within 10 seconds
of the master’s query after having communicated prior
There was no response from the device within 10 seconds
of the master’s query after having communicated prior
Valid packet has not been received from back PCB within last 15 seconds
ID Plug is not present or not connected properly.
Check for loose plug or loose wires in plug.
Control recovered from internal error
Control Failure
Flame is present with no power being supplied to gas valve.
This can be caused by a gas valve that is slow to close or that
leaks gas through to the burners
High limit switch or 24 volt fuse is open.
Can be caused by restricted airflow or open fuse
Rollout or auxiliary switch open. Reset rollout switch if possible.
Check limit switch in air blower housing
Current failure on modulating gas valve
Reversed line polarity or improper grounding.
Check the polarity of incoming power and grounding. Check transformer.
Gas valve circuit shorted. Check gas valve wiring.
If correct, replace gas valve
Main blower failure
ID plug is not present or not connected properly.
Check for loose plug or loose wires in plug
Jumper Error
Stuck open pressure switch indicates that the pressure switch is
open when it should be closed
Lockout due to no ignition. Check gas supply,
ignitor, gas valve, and flame sensor
Lockout due to too many flame recycles. Can be caused by
fault gas valve, low gas pressure, or dirty flame sensor
Flame sensed with gas valve off
Limit/Rollout switch open
Limit/Rollout switch open more than 15 minutes
Pressure switch cycle lockout
Incorrect line voltage polarity
Gas valve circuit shorted
Limit/Rollout switch open from 5 to 15 minutes
ID Plug missing or not connected properly
Control Failure
Pressure switch open with inducer on
Lockout due to failed ignition
Lockout due to too many flame dropouts
Control Failure
Low voltage (below 16 VAC) stopped current relay outputs
X/L Input Status
X/L Input Status
System in high pressure switch lockout
Control Failure
System in low pressure switch lockout
Low voltage (below 16.0 VAC) stopped current relay outputs
Compressor contactor miswire
Johnson Controls Unitary Products
5271253-UIM-B-0617
TABLE 9: Critical Faults
CRITICAL Fault (Displayed Text)
YGVI
OUTDOOR:HPS LOCKOUT-HP
OUTDOOR:HPS LOCKOUT-DEFROST
OUTDOOR:CONTROL FAILURE
OUTDOOR:LPS LOCKOUT
OUTDOOR:LOW VOLTAGE(< 16VAC)
OUTDOOR:AMBIENT SENSOR SHORTED
OUTDOOR:AMBIENT SENSOR OPEN
OUTDOOR:LIQUID LINE SENSOR SHORT
OUTDOOR:LIQUID LINE SENSOR OPEN
OUTDOOR:HIGH DISCHARGE TEMP - SOFT LOCKOUT
OUTDOOR:LOW DISCHARGE TEMP - SOFT LOCKOUT
OUTDOOR:HIGH DISCHARGE TEMP - HARD LOCKOUT
OUTDOOR:LOW DISCHARGE TEMP - HARD LOCKOUT
OUTDOOR:DISCHARGE LINE SENSOR SHORT
OUTDOOR:BONNET SENSOR SHORT
OUTDOOR:FOSSIL FUEL CONFIG ERROR
OUTDOOR:COMPRESSOR MISWIRE
OUTDOOR:Y2 W/O Y1-SOFT LOCKOUT
OUTDOOR:NO DEFROST CURVE SELECTED
VS Outdoor Control
OUTDOOR:CONTROL FAILURE
OUTDOOR:HPS SOFT LOCKOUT-NORMAL
OUTDOOR:HPS HARD LOCKOUT-NORMAL
OUTDOOR:HPS SOFT LOCKOUT-DEFROST
OUTDOOR:HPS HARD LOCKOUT-DEFROST
OUTDOOR:LOW VOLTAGE(< 19VAC)
OUTDOOR:COMM LOST INVERTER DRIVE
OUTDOOR: COMM LOST- SYSTEM MASTER
OUTDOOR:AMBIENT SENSOR SHORTED
OUTDOOR:AMBIENT SENSOR OPEN
OUTDOOR:COIL TEMP SENSOR SHORTED
OUTDOOR:COIL TEMP SENSOR SHORTED-SOFT LOCKOUT
OUTDOOR:COIL TEMP SENSOR OPEN
OUTDOOR:COIL TEMP SENSOR OPEN-SOFT LOCKOUT
OUTDOOR:LIQUID TEMP SENSOR SHORTED
OUTDOOR:LIQUID TEMP SENSOR SHORTED-SOFT LOCKOUT
OUTDOOR:LIQUID TEMP SENSOR OPEN
OUTDOOR:LIQUID TEMP SENSOR OPEN-SOFT LOCKOUT
OUTDOOR:DISCHARGE TEMP SENSOR SHORTED
OUTDOOR:DISCHARGE TEMP SENSOR OPEN
OUTDOOR:DISCHARGE TEMP SENSOR OPEN-SOFT LOCKOUT
OUTDOOR:SUCTION TEMP SENSOR SHORTED
OUTDOOR:SUCTION TEMP SENSOR SHORTED-SOFT LOCKOUT
OUTDOOR:SUCTION TEMP SENSOR OPEN
OUTDOOR:SUCTION TEMP SENSOR OPEN-SOFT LOCKOUT
OUTDOOR:DISCHARGE PRESSURE SENSOR LOW VOLTAGE
OUTDOOR:DISCHARGE PRESSURE SENSOR
LOW VOLTAGE-SOFT LOCKOUT
OUTDOOR:DISCHARGE PRESSURE SENSOR HIGH VOLTAGE
OUTDOOR:DISCHARGE PRESSURE SENSOR
HIGH VOLTAGE-SOFT LOCKOUT
OUTDOOR:SUCTION PRESSURE SENSOR
LOW VOLTAGE-SOFT LOCKOUT
Continued on next page.
Johnson Controls Unitary Products
Description
High Pressure Switch fault. Last mode of operation was heat pump.
High Pressure Switch fault. Last mode of operation was defrost.
Control Failure
Low Pressure Switch Lockout
Low voltage (below 16.0 VAC) stopped current relay outputs
Outdoor ambient temperature sensor failure (shorted)
Outdoor ambient temperature sensor failure (open)
Liquid line sensor failure (shorted)
Liquid line sensor failure (open)
High discharge line temperature
Low discharge line temperature
High discharge line temperature
Low discharge line temperature
Discharge line sensor failure (shorted)
Bonnet sensor failure (shorted)
Fossil Fuel Mode setting error. FFUEL jumper in the
OFF position with bonnet sensor present
Compressor contactor miswire
Y2 present without Y1
Defrost Curve Jumper Error. Invalid jumper setting
preventing compressor operation.
Control Failure
High pressure switch lockout. Last mode of operation was normal compressor.
High pressure switch lockout. Last mode of operation was normal compressor.
High pressure switch lockout. Last mode of operation was defrost.
High pressure switch lockout. Last mode of operation was defrost.
Low Voltage (<19 VAC) stopped current relay outputs for > 2 seconds
Inverter Control Communications Fault
RS-485 Communications Lost
Outdoor ambient sensor failure (short)
Outdoor ambient sensor failure (open)
Coil sensor failure (short)
Coil sensor failure (short)
Coil sensor failure (open)
Coil sensor failure (open)
Liquid line temperature sensor failure (short)
Liquid line temperature sensor failure (short)
Liquid line temperature sensor failure (open)
Liquid line temperature sensor failure (open)
Discharge temperature sensor failure (short)
Discharge temperature sensor failure (open)
Discharge temperature sensor failure (open)
Suction temperature sensor failure (short)
Suction temperature sensor failure (short)
Suction temperature sensor failure (open)
Suction temperature sensor failure (open)
Discharge pressure sensor failure (low voltage)
Discharge pressure sensor failure (low voltage)
Discharge pressure sensor failure (high voltage)
Discharge pressure sensor failure (high voltage)
Suction pressure sensor failure (low voltage)
15
5271253-UIM-B-0617
TABLE 9: Critical Faults
CRITICAL Fault (Displayed Text)
OUTDOOR:SUCTION PRESSURE SENSOR
HIGH VOLTAGE-SOFT LOCKOUT
OUTDOOR:HIGH DISCHARGE TEMP
OUTDOOR:HIGH DISCHARGE TEMP - SOFT LOCKOUT
OUTDOOR:HIGH DISCHARGE TEMP - HARD LOCKOUT
OUTDOOR:LOW SUCTION PRESSURE
OUTDOOR:LOW SUCTION PRESSURE - SOFT LOCKOUT
OUTDOOR:LOW SUCTION PRESSURE - HARD LOCKOUT
OUTDOOR: MULTIPLE INVERTER FAULTS-SOFT LOCKOUT
VS Inverter Control
INVERTER:COMPRESSOR PHASE OVER CURRENT
INVERTER:AC INPUT OVER CURRENT
INVERTER:DC BUS OVER VOLTAGE
INVERTER:DC BUS UNDER VOLTAGE
INVERTER:AC INPUT OVER VOLTAGE
INVERTER:AC INPUT UNDER VOLTAGE
INVERTER:POWER MODULE OVER TEMP
INVERTER:PFC-IGBT OVER TEMP
INVERTER:LOST ROTOR POSITION
INVERTER:COMPRESSOR PHASE CURRENT IMBALANCE
INVERTER:MICROELECTRONIC FAULT
INVERTER:POWER MODULE TEMP LOW/SENSOR OPEN
INVERTER:COMM ERROR
INVERTER:PFC MCU & DSP COMM ERROR
INVERTER:COM MCU & DSP COMM ERROR
INVERTER:PFC-IGBT LOW TEMP/SENSOR OPEN
INVERTER:COMPRESSOR MODEL CONFIG ERROR
INVERTER:HPS CONFIG ERROR
INVERTER: DLT CONFIG ERROR
INVERTER:FAULT LIMIT LOCKOUT
16
Description
Suction pressure sensor failure (high voltage)
High discharge temperature
High discharge temperature
High discharge temperature
Low suction pressure
Low suction pressure
Low suction pressure
Multiple Inverter Faults
Compressor Phase Over Current
AC Input Over Current
DC Bus Over Voltage
DC Bus Under Voltage
AC Input Over Voltage
AC Input Under Voltage
Power Module Over Temp
PFC-IGBT Over Temp
Lost Rotor Position
Compressor Phase Current Imbalance
Microelectronic Fault
Power Module Temp Low or Sensor Open Fault
Modbus Communication Lost
PFC MCU and DSP Communication Lost
COM MCU and DSP Communication Lost
PFC-IGBT Temp Low or Sensor Open Fault
Compressor Model Configuration Error
High Pressure Sensor Type Configuration Error
DLT Sensor Configuration Error
Fault Limit Lockout
Johnson Controls Unitary Products
5271253-UIM-B-0617
TABLE 10: Efficiency Fault
EFFICIENCY Fault (Displayed Text)
Thermostat
ID TEMP SENSOR HIGH
ID TEMP SENSOR LOW
REMOTE SENSOR HIGH
REMOTE SENSOR LOW
HUM TEMP SENSOR HIGH
HUM TEMP SENSOR LOW
ID TEMP RANGE HIGH
ID TEMP RANGE LOW
HUM SENSOR FAILURE
HUMIDITY RANGE HIGH
HUMIDITY RANGE LOW
OUTDOOR SENSOR FAILURE
Modulating Furnace
FURNACE: PRESSURE SWITCH CLOSED
FURNACE: SOFT LIMIT WARNING
FURNACE: AIR BLOCKAGE WARNING
FURNACE: UNKNOWN FAILURE
FURNACE: FLAME ROD AGE WARNING
2-Stage Furnace
FURNACE: PRESSURE SWITCH CLOSED
FURNACE: 2S PRESSURE SWITCH OPEN
FURNACE: FLAME ROD AGE WARNING
Outdoor AUX
OUTDOOR:Y2 W/O Y1-SOFT LOCKOUT
OUTDOOR:HPS OPEN W/O COMPRESSOR
YGVI
OUTDOOR:PIPE FREEZE TIMER EXPIRED
OUTDOOR:HPS OPEN W/O COMPRESSOR
VS Control
OUTDOOR:HPS OPEN
OUTDOOR:PIPE FREEZE TIMER EXPIRED
OUTDOOR:REPAIR MODE HEAT-HP
OUTDOOR:REPAIR MODE COOL-HP”
OUTDOOR:REPAIR MODE COOL-AC
OUTDOOR:HIGH SUPERHEAT”
OUTDOOR:LOW SUPERHEAT
OUTDOOR:HIGH SUBCOOL
OUTDOOR:LOW SUBCOOL
VS Inverter
INVERTER:COMPRESSOR PHASE
CURRENT FOLDBACK
INVERTER:AC INPUT CURRENT
FOLDBACK
INVERTER:POWER MODULE HIGH TEMP
INVERTER:PFC-IGBT HIGH TEMP
INVERTER:POWER MODULE TEMP
FOLDBACK
Johnson Controls Unitary Products
Description
Temperature reading > 122 F
Temperature reading = 0 or reading not available
Remote temperature > 122 F. Only flagged if remote sensor set to use as indoor temperature
(REMOTE SENSOR setting se to INDOOR or AVERAGE
Remote temperature = 0. Only flagged if remote sensor set to use as indoor temperature (REMOTE
SENSOR setting se to INDOOR or AVERAGE
Humidity sensor temperature > 122 F. Only flagged if using hum temperature as a backup source
during a fault condition with the primary temperature sensor
Humidity sensor temperature = 0. Only flagged if using hum temperature as a backup source during
a fault condition with the primary temperature sensor
Indoor temperature is > 99.0 F
Indoor temperature is < 40.0 F
Humidity sensor timed out. Humidity reading is > 99% or Humidity reading is 0
Humidity reading is > 90%
Humidity reading is < 10%
OD temp > 127 or < -60
Pressure switch closed with inducer pressure below pressure switch setpoint (switch is closed when
it should be open). Check pressure switch.
Soft limit warning
Air blockage warning
Unknown failure
Flame rod age warning
Pressure switch closed with inducer off
2nd stage pressure switch open with high inducer on
Flame rod warning
Y2 present without Y1
HPS open with no call for compressor
Pipe Freeze Protection Timer expiration
HPS open with no call for compressor
High-pressure switch fault (not in lockout yet)
Pipe Freeze Timer expiration
Conventional Y1 signal receive in HP mode
Conventional Y1 and O signals receive in HP mode
Conventional Y1 signal receive in AC mode
High Superheat
Low Superheat
High Subcool
Low Subcool
Compressor Phase Current Foldback Timeout
AC Input Current Foldback Timeout
Power Module Temp High
PFC-IGBT High Temp
Power Module Temp. Foldback Timeout
17
5271253-UIM-B-0617
TABLE 11: Warning Fault
WARNING Fault (Displayed Text)
Indoor AUX
OUTDOOR:LOW VOLTAGE(< 19VAC)
Outdoor AUX
OUTDOOR:LOW VOLTAGE(< 19VAC)
OUTDOOR:AMBIENT SENSOR SHORTED
OUTDOOR:AMBIENT SENSOR OPEN
YGVI
OUTDOOR:LOW VOLTAGE(< 19VAC)
OUTDOOR:O INPUT-AC MODE
OUTDOOR:W INPUT-AC MODE
OUTDOOR:W & O INPUTS-AC MODE
OUTDOOR:W & O INPUTS-HP MODE
VS Control
OUTDOOR:LOW VOLTAGE(< 22VAC)
OUTDOOR:O INPUT-AC MODE
OUTDOOR:W & O INPUTS-AC MODE
OUTDOOR:W & O INPUTS-HP MODE
OUTDOOR: LOW SUCTION PRESSURE
OUTDOOR: LOW DISCHARGE TEMP
OUTDOOR: LOW SYSTEM CHARGE
OUTDOOR: HIGH SYSTEM CHARGE
Description
Low voltage (below 19.2 VAC) preventing further relay outputs
Low voltage (below 19.2 VAC) preventing further relay outputs
Outdoor ambient temperature sensor failure (shorted)
Outdoor ambient temperature sensor failure (open)
Low voltage (below 19.2 VAC) preventing further relay outputs
O signal received in AC Mode
W signal received in AC Mode
W and O signals received in AC Mode
W and O signals received in HP Mode
Low Voltage (< 22.2VAC) preventing further relay outputs for > 2 seconds
O signal received in AC mode
W and O signal received in AC mode
W and O signal received in HP mode
Low suction pressure
Low discharge temperature
Low system charge
High system charge
TABLE 12: Status Fault
STATUS Fault (Displayed Text)
Thermostat
NOT CONNECTED TO SERVER
NOT CONNECTED TO ROUTER
WIFI HARDWARE FAULT
Indoor AUX
INDOOR:X/L INPUT-FLASH 1
INDOOR:X/L INPUT-FLASH 4
INDOOR:X/L INPUT-FLASH 5
INDOOR:X/L INPUT-FLASH 6
INDOOR:X/L INPUT-FLASH 7
INDOOR:X/L INPUT-FLASH 8
INDOOR:X/L INPUT-FLASH 9
INDOOR:X/L INPUT-CONSTANT
2-Stage Furnace
FURNACE: Y WITHOUT G
VS Control
OUTDOOR:DEMAND RESPONSE
ID EEV
ID EEV: INVALID PRESSURE TRANSDUCER
ID EEV: INVALID SUCTION TEMP
ID EEV: FULLY OPEN IN SUPERHEAT
ID EEV: SUCTION PRESSURE OUT
OF RANGE
ID EEV: COMMUNICATIONS LOST
18
Description
Not connected to Ayla server
Router signal strength is 0 bars (not connected)
Communications error occurred with Wi-Fi module (resets after valid message received)
X/L Input Status
X/L Input Status
X/L Input Status
X/L Input Status
X/L Input Status
X/L Input Status
X/L Input Status
X/L Input Status
Y thermostat demand without a G
Demand Response
Invalid pressure transducer
Invalid suction temperature
Valve position to fully open while in superheat control mode
Suction pressure out of range
RS-485 Communication not sensed
Johnson Controls Unitary Products
5271253-UIM-B-0617
Ventilation Settings
The Ventilation Settings screens are used to view/edit settings associated with a whole home ventilator (ERV/HRV) devices. These screens are only
accessible in system which have an ERV/HRV Accessory control installed. The settings available are explained in the table below.
TABLE 13: System Events
System Events: Logged but NOT shown in banner
Event (Displayed Text)
Description
SETUP CORRECTION
Setting was adjusted b/w it was out of range or issue w/ other related setting
OTA PASS (APPF)
OTA software update for front PCB application successful
OTA PASS (APPB)
OTA software update for back PCB application successful
OTA PASS (BOOT)
OTA software update for bootloader application successful
OTA TIMED OUT
OTA software updated has timed out after 3 (15 minute) attempts
FRONT BOARD CHANGED
Front PCB has been changed with a new unconfigured front PCB
AIR FILTER RESET
Air Filter # hours remaining has been reset (from FILTER screen)
HUMIDIFIER FILTER RESET
Humidifier Filter # hours remaining has been reset (from FILTER screen)
UV LAMP RESET
UV Lamp # hours remaining has been reset (from FILTER screen)
EAC RESET
EAC # hours remaining has been reset (from FILTER screen)
STARTUP
Flagged at startup to indicate that thermostat has been reset
NFC EVENT SUCCESS
Successful NFC Read/Write has occurred
LOG CLEARED
Faults and events have been reset from the Log
System Events: Logged and displayed in banner while condition exists
AIR FILTER REMINDER
Air filter change reminder is active (run hours have expired)
HUMIDIFIER FILTER REMINDER
Humidifier filter change reminder is active (run hours have expired)
UV LAMP REMINDER
UV Lamp change reminder is active (run hours have expired)
EAC REMINDER
EAC change reminder is active (run hours have expired)
TABLE 14: Ventilation Settings
Variable
Default
Settings
Explanation
Ventilation Mode
Timed
Continuous, Timed or Off
This will determine how often the ventilation device will be opened
Ventilation Runtime per Cycle
20 min.
5-55 min in 5 min intervals
If ventilation mode is set to “Timed”, the control will allow ventilation
per this setting per Ventilation Cycle Time
Ventilation Cycle Time
1 hour
1 -4 hours
If ventilation mode is set to “Timed”, the control will allow
Ventilation Runtime per this setting
Ventilation Limits
Disabled
Disabled, Default, and Manual
If there is a damper installed for ventilation purposes
No Ventilation Above
100 F
The touch screen will not allow ventilation if the outdoor
temperature exceeds this setting
No Ventilation Below
0F
The touch screen will not allow ventilation if the outdoor
temperatures is below this setting
There are additional settings for ventilation. These settings will determine if the ventilator is opened during a call for conditioning. The thermostat will open ventilation any time there is a call for conditioning if the
outdoor temperature falls in the “Ventilation with a heating/cooling call”.
Otherwise ventilation will run with the indoor blower per the previously
described settings.
Finally the ventilation can be controlled per indoor humidity. If the outdoor temperature is above 50 degrees the touch screen can be set so
that it will disable ventilation if the indoor humidity rises above the
desired setting.
SYSTEM SETTINGS
VENT WITH HEAT
10°F
VENT WITH COOL
85°F
NO VENT ABOVE HUM
50%
A0632-001
FIGURE 29: Vent with Heat
Johnson Controls Unitary Products
19
SECTION VII: SERVICE SETTINGS
DEALER INFORMATION
Additional service information such as event/fault logs and dealer content can be found by going to the homeowner settings screen.
SVC
The information displayed on this screen is editable via the
Thermostat 280 app.
LOG
Here the event and fault log screen can be viewed. Pressing
an entry displayed on the “Log” screen will prompt a screen
that tells when the event or fault last occurred and how many
times it has occurred.
SERVICE
Press the “Reset Log” to delete all the displayed log entries.
Joe’s Plumbing HVAC
(555) 867-5309
www.jplumbinghvac.com
jp-hvac@hotmail.com
LOG
STARTUP
-EMPTY-EMPTY-
A0635-001
FIGURE 32: Screen Service
FORCED OPERATION
A0633-001
FIGURE 30: Log
Pressing and holding TIMERS text for 5 seconds will clear
timer countdown values for ON timer, OFF timer, CYCLE
timer and STAGE DELAY timer. Current lockouts will be
actively displayed in this screen. Pressing and holding LOCKOUT TIMERS text for 5 seconds will clear timer values for COOL timer,
AUX HEAT timer and HP HEAT timer
LOG
3/31/15 11:14AM
CONTROL: SYSTEM
COUNT: 2
STATUS
TIMERS (SECONDS):
ON
OFF
CYCLE
STAGE DELAY
FORCED STAGE UP
AUTO CHANGE
FUEL TYPE CHANGE
0
0
0
0
1695
0
0
A0634-001
FIGURE 31: Screen Log Startup
A0636-001
FIGURE 33: Status
Subject to change without notice. Published in U.S.A.
Copyright © 2017 by Johnson Controls, Inc. All rights reserved.
5271253-UIM-B-0617
Supersedes: 5271253-UIM-A-1016
York International Corp.
5005 York Drive
Norman, OK 73069
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