Crestron CHV-TSTATEX_FCU Wireless Programmable Thermostat Installation Guide

Crestron CHV-TSTATEX_FCU Wireless Programmable Thermostat

Introduction

The CHV-TSTATEX-FCU is a wireless thermostat featuring infiNET EX® technology. The CHV-TSTATEX-FCU installs just like a conventional thermostat because no extra wires are needed to connect to the control system. Although functional as a standalone thermostat, the CHV-TSTATEX-FCU delivers enhanced functionality as part of a complete Crestron® automation system. Integrating HVAC with a Crestron system can help lower energy bills and increase user friendliness.

The CHV-TSTATEX-FCU is designed for fan coil unit HVAC systems. The large backlit LCD display provides a clear view of temperature, setpoint, system mode, fan mode, system status, and setup functions. Climate control features include separate heating and cooling setpoints, and adjustable anticipators to prevent overshooting the desired temperature. Continuous fan operation can be selected when needed for increased circulation.

Features and Functions

• Wall mount heat/cool thermostat for fan coil unit HVAC systems
• Crestron system integration via infiNET EX wireless network
• Saves on energy costs with advanced programming abilities
• Supports two remote temperature sensors
• Fail-safe mode allows operation in event of control system failure
• Backlit LCD display
• Fan coil unit control*
• Available in white, black, or almond

Fan Coil Unit Support
The CHV-TSTATEX-FCU infiNET EX thermostat provides the functionality of controlling fan coil units1. The CHV-TSTATEX-FCU has custom firmware, display programming and terminal labels designed for 3-speed fan applications. The CHV-TSTATEX-FCU supports on/off control of the valves and the fan in 4-pipe fan coil applications, eliminating the need for an additional device dedicated to controlling the fan coil unit itself. infiNET EX Communications

Built on steadfast infiNET™ technology, infiNET EX is the new standard in 2-way wireless connectivity that can handle installations in even the most urban settings. The redundant nature of its mesh networking technology means that a command is never missed, resulting in faultless operation – something that is of the utmost importance when it comes to HVAC control and home automation. The
CHV-TSTATEX-FCU harnesses this cutting edge wireless connectivity which affords it a level of robustness and dependability above other solutions.

Automation System Integration
The wireless connection to the control system allows the functions of the
CHV-TSTATEX-FCU to be controlled from touch screens, keypads, wireless remotes, computers, or even a mobile device. It supports unlimited flexibility for remote control, scheduling, and integration with other devices and systems. However, in the event that communication with the control system is disrupted for any reason, the CHV-TSTATEX-FCU remains operable to control the HVAC system.

Easy Installation
System design and installation using infiNET EX thermostats could not be easier. Since no control wires are required, the CHV-TSTATEX-FCU can be installed just like any conventional thermostat.
To simplify installation, physical switches are provided for the most critical configuration options including heat/cool type, heat pump behavior, power settings, number of heating/cooling stages, and fan options. These settings allow HVAC contractors to install and test the thermostats prior to the appearance of a Crestron system integrator.

An infiNET EX gateway such as the CEN-RFGW-EX or MC3 (both sold separately) is needed for communications. Setting up a complete network of infiNET EX devices is simple, utilizing dynamic discovery (self-install) to locate and acquire each RF device automatically. Setting the ID of each device employs the same convention as Crestron’s familiar TSID (touch-settable ID) method, and each device is programmable using Crestron Studio™, SIMPL Windows, SystemBuilder™ or D3 Pro® software just like any wired Cresnet® device. Even firmware updates are performed over the wireless network.

No further action is required to configure the infiNET EX network. Each device assigned to a common gateway automatically behaves as a wireless expander2 for any other devices within range (approximately 150 feet (~46 meters) indoors), and additional expanders may be added if necessary. The infiNET EX gateway monitors each device on the network at all times, ignoring any other 2.4 GHz signals. It reconfigures the entire network automatically in response to new sources of interference and other changes in RF conditions.

1. 4- pipe fan coil units are supported.
2. CHV-TSTATEX-FCU must be powered by a 24 volt source to enable repeater functionality.

Remote Sensors
Optional remote temperature sensors can be connected to the CHV-TSTATEX for enhanced flexibility and optimized performance. Climate can be regulated according to an average of multiple sensors, or the built-in sensors can be disabled entirely to allow the CHV-TSTATEX to be installed out of view. For heat pump-type systems, outdoor temperature can be monitored to optimize system performance. Compatible sensors include the CHV-RTS and the CHV-RSS (both sold separately).

Specifications

Specifications for the CHV-TSTATEX-FCU are listed in the following table.
CHV-TSTATEX-FCU Specifications

SPECIFICATION	DETAILS
Wireless
RF Transceiver	2-way RF, 2.4 GHz ISM Channels 11-26 (2400 to 2483.6 MHz), IEEE 802.15.4 compliant
Range (typical)	150 ft (46 m) indoor, 250 ft (76 m) outdoor; Subject to site-specific conditions; range is increased by adding additional devices or CLW-EXPEX wireless expander (sold separately)
Gateway	Requires a CEN-RFGW-EX RF gateway or MC3 3-Series Control System® (both sold separately)
Display	Backlit LCD with two large 7-segment digits, two small 7-segment digits, 14 dedicated symbols; Displays ambient temperature, setpoint, system mode, fan setting, call activity, low battery, RF or control system communication errors, firmware download progress, setup parameter/function and value
Measurement Range Ambient Temperature Display Limits	-10º to 110º F (-23º to 43º C) -9º to 99º F (-9º to 43º C)
Temperature Tolerance Over Full Range At Room Temperatures	±1º F (±0.5º C) ±1º F (+0.4/-0.2º C)
Setpoint Range Heat Setpoint Cool Setpoint	38º to 89º F (3º to 32º C) 59º to 99º F (15º to 37º C)
Relay Rating	1 amp @ 40 volts dc or 24 volts ac (nominal)
Environmental Temperature Humidity	-10º to 110º F (-23º to 43º C) 10% to 90% RH (non-condensing)

SPECIFICATION	DETAILS
Power Requirements 24V   Battery	0.24 watts (10 mA @ 24 volts ac) supplied by heating or cooling system Two AA batteries, estimated 1 year normal operation
Default RF ID	01
Housing	Injection molded plastic, surface mountable to the front of a horizontally oriented 1-gang electrical box.
Dimensions Height Width Depth	4.50 in (115 mm) 5.53 in (141 mm) 1.03 in (26 mm)
Weight	7 oz (190 g)
Available Models CHV-TSTATEX-FCU-A-T CHV-TSTATEX-FCU-B-T CHV-TSTATEX-FCU-W-T	infiNET EX Thermostat, Fan Control Unit, Textured, Almond infiNET EX Thermostat, Fan Control Unit, Textured, Black infiNET EX Thermostat, Fan Control Unit, Textured, White
Available Accessories CEN-RFGW-EX CHV-RSS   CHV-RTS CLW-EXPEX-GD-W-T   MC3	infiNET EX Wireless Gateway Remote Slab Sensor and Outdoor Temperature Sensor Remote Temperature Sensor infiNET EX Wireless Expander, Ground Pin Down, White Textured 3-Series Control System

Physical Description
This section provides information on the connections, controls and indicators available on the CHV-TSTATEX-FCU.

Connectors, Controls & Indicators

#	CONNECTORS, CONTROLS & INDICATORS	DESCRIPTION
1	MODE Button	Cycles through available system modes: OFF, HEAT, AUTO and COOL
2	FAN Button	Toggles fan setting between FAN AUTO and FAN ON
3		Raises the setpoint
4		Lowers the setpoint
5	LCD Display	Displays ambient temperature, setpoint, system mode, fan setting, call activity, low battery, RF or control system communication errors, setup parameter/function and value
6	HVAC	(7) terminal blocks RS2: Remote sensor (2) (outdoor) RS1: Remote sensor (1) (indoor) RSR: Remote sensor return RSR:  Remote sensor return N/C: Unused W:       Heat N/C: Unused

#	CONNECTORS, CONTROLS & INDICATORS	DESCRIPTION
7	HVAC	(7) terminal blocks. GL:           Fan low GM: Fan medium GH:  Fan high N/C: Unused Y:        Cool R:       24V return 24C: 24V supply
8	DIP Switches	(2) Four-bank two-position DIP switches used to configure device settings; Refer to “DIP Switch Setup” which starts on page 11 for details
9	Power Switch	(1) Two-position slide switch used to configure power settings; Refer to “DIP Switch Setup” which starts on page 11 for details

Setup

Identity Code |
NOTE: The latest software can be downloaded from the Crestron Web site (www.crestron.com/software).

Every CHV-TSTATEX-FCU communicating via RF with a Crestron control system through a CEN-RFGW-EX wireless gateway or directly with an MC3 3-Series Control System requires a unique RF ID. The RF ID is a two-digit hexadecimal number that can range from 03 to FF. The RF ID of the unit, set using Crestron Toolbox™, must match the RF ID specified in the Crestron Studio or SIMPL Windows program.

Supplied Hardware

The hardware supplied with the CHV-TSTATEX-FCU is listed in the following table.
Supplied Hardware for the CHV-TSTATEX-FCU

DESCRIPTION	PART NUMBER	QUANTITY
Screws, Zinc, Phillips, Pan Head, #06-32 x 1”	2007251	2
Batteries, AA, Alkaline	2001050	2

Installation

NOTE: Installers should have a strong working knowledge of HVAC systems.

The location of the thermostat can affect its performance and efficiency. Install the thermostat away from direct sunlight, drafts, doorways, skylights and windows. Also make sure the thermostat is conveniently located for control access and setup.
Thermostats should be mounted 60 inches (~1.6 meters) above the finished floor
(HVAC industry standard). Do not mount on an exterior wall.

The following tools and hardware are required for installation:

• Standard 1-gang electrical box, mounted horizontally (not supplied)
• Phillips screwdriver (not supplied)
• Two 1-inch pan head Phillips screws (included)
• Two AA batteries (included)

Use the following procedure to install the CHV-TSTATEX-FCU in a standard,

1. gang electrical box (refer to illustration on the following page):
   1. Turn HVAC system power OFF.
   2. Separate thermostat front plate from rear plate. It may be necessary to exert force when removing the front plate.
   3. Feed HVAC wiring from the electrical box through the hole in the center of the rear plate so it can be connected to the proper terminals on the CHV-TSTATEX-FCU after the thermostat is mounted.
      CAUTION: Excess wire pinched between the CHV-TSTATEX-FCU and electrical box could cause a short circuit. Make sure that all excess wire is completely inside the electrical box and not between the box and the CHV-TSTATEX-FCU.
      NOTE: To ensure accurate temperature readings, avoid drafts in the back of the unit by plugging the wire hole with insulation.
   4. Make sure unit is correctly oriented and place it in the electrical box.
   5. Attach the CHV-TSTATEX-FCU rear plate to the electrical box using the two included #06-32 x 1” pan head screws.
      CAUTION: Do not press on the LCD display during mounting, as this may cause the screen to crack.
   6. Attach the front plate.
   7. Carefully remove the warning label from the LCD display.
   8. Insert batteries and attach the battery compartment cover.
      CAUTION: Replace all batteries in the device at the same time. Mixing old and new batteries in the device may result in battery leakage and equipment damage.
      NOTE: Crestron has provided small slots on either side of the battery cover, designed to allow a flat head screwdriver to be inserted to assist in removal.
   9. Turn HVAC system power ON.

Installation into Electrical Box

DIP Switch Setup
The following describes the CHV-TSTATEX-FCU DIP switch settings.

1. Install two AA batteries (included) in the battery compartment.
2. Locate the DIP switches inside the unit and configure the parameters per the tables below.

DIP Switch Settings

Left Switch

#	DESCRIPTION	ON	OFF
4	Lockout setup mode	Unlocked	Locked
3	HOLD button behavior	Toggles between F/C	Toggles Hold mode
2	Medium fan speed	Enabled	Disabled
1	Low fan speed	Enabled	Disabled

Right Switch

#	DESCRIPTION	ON	OFF
4	Heat mode	Enabled	Disabled
3	Cool mode	Enabled	Disabled
2	Auto mode	Enabled	Disabled
1	Auto mode behavior	Single setpoint	Dual setpoint

By default, the CHV-TSTATEX-FCU is configured to be powered by two AA alkaline batteries. To extend battery life, the device also receives power from the HVAC system by drawing a small amount of current through the heat or cool terminals. This is known as Steal Power mode.

To enable this feature, locate the power switch inside the unit and slide it to STEAL (This is the default factory setting on the CHV-TSTATEX-FCU).
Power Switch

STEAL 24VAC

NOTE: Steal Power mode does not draw enough current to cause the external heat or cool relays to close. More specifically, when the unit is not making a call for heat, it draws power through the R and W terminals. When the unit is making a call for heat, it draws power through the R and Y terminals. (This does not work if the thermostat has been wired for a cool only application.) The CHV-TSTATEX-FCU must be wired for heat control in order to take advantage of Steal Power mode. In Steal Power mode, even when an auxiliary power source is available, the unit continues to enter a communications sleep state, waking every 30 seconds or one minute (based on the infiNET EX Sleep Time setting) to exchange data with the control system. Refer to “Remote Operation” which starts on page 25 for details.

NOTE

• Steal Power mode may cause problems with some types of HVAC systems, such as indicating a false heat or cool call. If this occurs, do not use Steal Power mode.
• If the thermostat will be wired so that 24 volts ac are always be present on the 24C terminal, slide the POWER switch to 24VAC. No batteries are required in this mode.
• When the unit detects 24 Vac, it no longer “sleeps”, meaning it offers real-time communication with the control system.
• When the unit is powered from a constant 24 Vac supply, there may be a slight discrepancy between the ambient temperature displayed on the thermostat and the actual room temperature. This discrepancy is also seen when switching from STEAL to 24VAC. This is normal and the discrepancy disappears within approximately 10 minutes.

Wiring the CHV-TSTATEX-FCU to the HVAC System

Make the necessary connections as called out in the illustrations that follow. A flat head screwdriver (not supplied) is required to attach the control wires from the HVAC system. Apply power after all connections have been made.

The illustrations on the following pages show examples for connection to various types of HVAC systems. If the system being connected does not match any of the systems described below, contact Crestron Technical Support for assistance.

Basic Setup

Basic Thermostat Setup
The following describes the most common setup requirements. For full details on all setup options, refer to “Advanced Setup” which starts on page 18.
Place the CHV-TSTATEX-FCU in the Setup mode by doing the following:

1. Press and hold the FAN button.
2. While the FAN button is being held, press and hold the and buttons simultaneously.
3. Hold all three buttons for 5 seconds, after which the unit enters Setup mode. The display shows the Temperature Scale function (FC).

Useto choose the temperature units: F (setpoint in whole degrees Fahrenheit), C1 (setpoint in whole degrees Celsius) or C2 (setpoint in half degrees Celsius).
When setting parameters (such as when choosing between Fahrenheit or Celsius display), pressing thebutton increments or decrements the value. Value change occurs when button is released.

Joining an infiNET EX Network
Before a CHV-TSTATEX-FCU can be used on an infiNET EX network, it must first join an infiNET EX network by being acquired by an infiNET EX gateway (e.g., CEN-RFGW-EX).

NOTE: A CHV-TSTATEX-FCU can be acquired by only one gateway.
To acquire a CHV-TSTATEX-FCU, perform the following:

1. Put the CEN-RFGW-EX into Acquire mode, from the unit itself or from Crestron Toolbox, as described in the latest revision of the CEN-RFGW-EX Operations & Installation Guide (Doc. 6706), which is available from the Crestron Web site (www.crestron.com/manuals).
   NOTE: In an environment where multiple gateways are installed, only one gateway at a time should be in Acquire mode.
2. Ensure the unit is in Setup mode (refer to “Basic Setup – Basic Thermostat Setup” above or “Setup Mode” which starts on page 18) and that Acquire mode (AC) is selected.
3. Press MODE until the “infiNET EX ID” function is displayed (id).
   Use andchoose the infiNET EX ID.
4. Press MODE until the “Start infiNET EX Acquire” function is displayed (AC).
5. Presson the CHV-TSTATEX-FCU to start the acquire process: The display shows flashing “—” (in progress). When finished, the display shows 00 (finished, found gateway) or “E#” (finished, could not find gateway), where # represents an error code.
6. Once all devices have been acquired, take the CEN-RFGW-EX out of Acquire mode by pressing its ACQUIRE button. Press FAN on the thermostat to exit Setup mode.

NOTE: The acquire process can take up to 15 seconds. The acquire process cannot be aborted.E1 indicates that search time has expired and no gateway was found. To enable the channel, refer to “Start infiNET EX Acquire” in “Setup Mode Parameters/Functions” which starts on.

Leaving an infiNET EX Network
To leave a network, press and hold the FAN,buttons simultaneously for 5 seconds. Press MODE until the unacquire function is displayed (UA). Presson the CHV-TSTATEX-FCU to start the unacquire process. Refer to “Verifying Communication Status” on page 21 for a list of codes displayed once the process is completed. Press FAN on the thermostat to exit Setup mode.

Advanced Setup

Setup Mode
After the CHV-TSTATEX-FCU is installed, it is necessary to set it up for a particular heating/cooling system. Please note that some of the setup parameters listed below are not always shown since they are dependent upon other thermostat settings. Refer to “Setup Mode Parameters/Functions”, which starts on page 19 for details.

Place the CHV-TSTATEX-FCU in the Setup mode by doing the following:

1. Press and hold the FAN button.
2. While the FAN button is being held, press and hold the and buttons simultaneously.
3. Hold all three buttons for 5 seconds, after which the unit enters Setup mode.

Once in Setup mode, the display indicates the currently selected setup parameter/function. Press and release the MODE button quickly (it must be released within one second) to change to the next parameter/function in the list.

NOTE: Holding the MODE button for more than one second resets the currently selected parameter/function to its default value.

When setting parameters (such as when choosing between Fahrenheit or Celsius display), pressing thebutton increments or decrements the value. Value change occurs when button is released.
When a function is selected (such as when starting an infiNET EX acquire), pressing eitherexecutes the function.
To exit from Setup mode, press the FAN button on the CHV-TSTATEX-FCU.

CHV-TSTATEX-FCU LCD Display (Setup Mode)

NOTE: When the CHV-TSTATEX-FCU is in Setup mode the large 7-segment displays show the current setup parameter/function. The small 7-segment displays show the current value for the selected setup parameter, if applicable, or it displays “—” when a function is selected. All other display elements are hidden (refer to “LCD Display” which starts.While in Setup mode, a period of one minute with no button activity causes the CHV-TSTATEX-FCU to revert to standard operation, unless a function (such as an infiNET EX acquire) is executing.

Setup Mode Parameters/Functions
The following table shows the available setup parameters/functions.

Setup Mode Parameters/Functions

PARAMETER/ FUNCTION	CODE	VALID VALUES	DEFAULT VALUE	NOTES
Temperature Scale	FC	F, C	F	Sets units to use for temperature display (Fahrenheit or Celsius)
Backlight Timeout	bL	1 – 4 seconds or disabled (–)	4 seconds	Sets the number of seconds the backlight remains lit after a button press
Auto Dead Band	db	2 – 6 (for Fahrenheit) or 1 – 3 (for Celsius)	2	Used to set minimum separation between heat and cool setpoints (with dual setpoints) or maximum drift before system latches alternate mode (with single setpoint)
Heat Setpoint Limit	HL	50 – 90	80	Sets the highest heat setpoint that is allowed
Cool Setpoint Limit	CL	50 – 90	60	Sets the lowest cool setpoint that is allowed
Temperature Offset	to	-9 to +9 (for Fahrenheit) or -5 to +5 (for Celsius)	0	Permits recalibration of room temperature sensor; This is the number of degrees added to or subtracted from the actual temperature; This adjustment changes the actual regulation temperature, not just the display
Heat Anticipator	HA	1 – 6	3	Lower setting results in more frequent cycles and faster response (tighter regulation); Higher setting results in less frequent cycles and slower response (looser regulation); The default value should suffice in nearly all installations
Cool Anticipator	CA	1 – 6	3	Lower setting results in more frequent cycles and faster response (tighter regulation); Higher setting results in less frequent cycles and slower response (looser regulation); The default value should suffice in nearly all installations

PARAMETER/ FUNCTION	CODE	VALID VALUES	DEFAULT VALUE	NOTES
Remote sensors	Sn	i, r, ir	i	i – internal sensor only (When no remote sensor is detected, only this option is available); r – remote sensor only (Only available when a remote sensor has been detected); ir – average internal and remote sensors
Check Firmware Version	rE	Firmware version is displayed in xx.yy.zz format. “—“ can also be displayed.	—	When firmware version is not yet shown, display is “—”; Each press of the     or     button cycles to the next portion of the version number
infiNET EX ID (RF ID)	id	01 and 03 – FE	01	Sets the infiNET EX ID. Crestron Studio and SIMPL Windows restrict infiNET EX devices to an ID range of 03 – 20
infiNET EX Sleep Time	SL	Short (S) or Long (L)	L	Indicates thermostat update rate; Setting for fewer updates (L) conserves battery power.
Start infiNET EX Acquire	AC	Not started (–) In progress (flashing –) Finished, found GW (00) Finished, could not find GW (E#, where # represents an error code)	N/A	Refer to “Verifying Communication Status” which starts on for details
Unacquire Gateway	UA	Not started (–) In progress (flashing –) Finished, success (00) Finished, failed (E#, where # represents an error code)	N/A	Refer to “Verifying Communication Status” which starts on for details
Communication s check	CC	Error (E# – where # is a number from 0 to 7) No problems (00)	N/A	Refer to “Verifying Communication Status” which starts on for details
Check Battery Life	bA	Not started (–) Estimated remaining battery life (0 – 99)	N/A	Gives estimated remaining battery life in percent
Restore Factory Defaults	Fd	Not started  (–) In progress (blank or flashing –) Finished (00) Button not held long enough (Er)	N/A	Restores all setup parameters to their default settings; To prevent accidentally performing this action, press and hold either the     or button for three seconds for this function to execute

PARAMETER/ FUNCTION	CODE	VALID VALUES	DEFAULT VALUE	NOTES
Perform Heat Call Test (Toggle)	H	Not started/Heat call off (–) Heat call on (on) (also, “H” icon turns on)	N/A	Tests the heat call output; Bypasses short-cycle timers; Useful for technician system testing; Note that calling the heat may activate other relays in the thermostat as required, such as the fan output for heat pump or dual-fuel types
Perform Cool Call Test (Toggle)	C	Not started/Cool call off (–) Cool call on (on) (also, “C” icon turns on)	N/A	Tests the cool call output. Bypasses short-cycle timers; Useful for technician system testing; Note that calling the cooling may activate other relays in the thermostat as required, such as the fan output
Perform Fan Call Test (Toggle)	F	Not started/Fan call off (–) Fan call on (on) (also, “F” icon turns on)	N/A	Same as above, for fan; Note that only the fan relay can be activated for a fan call test
Perform Self Test	St	Not started (–) In progress (flashing –) Finished, self test ok (00) Finished, self test failed (E#, where # represents an error code)	N/A	Refer to “Self-Test Results” which starts on for details

Verifying Communication Status

To verify communication status, enter Setup mode as described in “Basic Setup – Basic Thermostat Setup” which starts on page 16. Press MODE until the AC, UA or CC function is displayed. Press on the CHV-TSTATEX-FCU to verify the  communication status.

Communication Error Codes 

Status/ Error Code	MEANING FOR ACQUIRE “AC”	MEANING FOR UNACQUIRE “UA”	MEANING FOR COMMUNICATION CHECK ”CC”
00	Success	Success	No problems found
E1	No gateway found	Failed or no previous gateway information was present	No gateway information present
E2	GW found but rejected device	N/A	N/A
E3	Radio operation not available	Radio operation not available	Radio operation not available
E4	N/A	N/A	N/A
E5	N/A	N/A	N/A
E6	N/A	N/A	Network communication not possible
E7	N/A	N/A	Device not joined to a gateway

Self-Test Results
These error/status codes are returned when performing a self-test operation, enter Setup mode as described in “Basic Thermostat Setup” which starts on page 16. Press MODE until the AC, UA or CC function is displayed. Press or on the CHV-TSTATEX-FCU to verify the communication status.

Self-Test Error Codes

ERROR CODE	SUMMARY	CORRECTIVE ACTION	REMARKS
00	Success	None	No detectable problems found.
E0	Low battery warning	Check and/or replace batteries	Error is only returned when current power configuration requires batteries
E1	24 Vac usage warning	Check power configuration	Error is set when 24 Vac appears to be available but is not configured properly (slide switch position)
E2	Display operation	Return unit	Device display may not be operating properly
E3	NV memory usage	Replace unit if feasible	Retention of non-volatile setup and operation parameters may be compromised
E4	Poor link quality	Perform general network debugging	Poor communication link to gateway may be consuming extra power and lowering battery life
E5	Gateway acquire information	Acquire device or check network	Device cannot communicate with a gateway. Normal result for unacquried device
E6	Network communication error	Additional network communication issues detected	Normal result for unacquired device
E7	Poor network communication	Additional indicator of poor communications link	Often associated with excessive network hops; Consider moving device closer to gateway or splitting network with additional gateways for better coverage

Operation

System Mode
The MODE button on the CHV-TSTATEX-FCU cycles the unit through all available system modes in the following order: Off, Heat, Emergency Heat (for heat pump and dual-fuel systems), Cool and Auto (if enabled in Setup).The system mode changes upon release of the MODE button and the selected mode becomes operational 5 seconds after the mode has been entered.

Off Mode
In Off mode, all HVAC systems are disabled.

Heat Mode
In Heat mode, the thermostat uses the heating system to maintain the setpoint temperature.

Cool Mode
In Cool mode, the thermostat uses the cooling system to maintain the setpoint temperature.

Auto Mode
In Auto mode, the thermostat allows the system to switch between Heat and Cool automatically as needed to maintain the setpoint temperature. By default, the CHV-TSTATEX-FCU has been configured with Auto mode disabled, meaning it is not available from the thermostat itself or via another interface such as a touch screen.

In order to enable Auto mode, enter Setup mode and change the AU setting from “–” to either d (dual setpoint) or S (single setpoint). Refer to “Setup Mode” which starts on page 18 for details.
Once Auto mode has been enabled, it can be accessed from the CHV-TSTATEX-FCU controls as follows:

1. Press the MODE button until both the flame and snowflake icons appear in the display. This indicates Auto mode is now active.
2. Use the and buttons to adjust the setpoint. Actual operation depends on whether single or dual setpoints are being used.
   • a. In dual setpoint Auto mode, the first press of the buttons (or second press if the first press simply turned on the backlight) causes either the flame or snowflake icon to flash rapidly. This indicates which setpoint is adjusted by subsequent presses of thebuttons. To adjust or view the alternate setpoint, press the MODE button while the icon is flashing. This causes the alternate icon to flash and now thebuttons adjust that setpoint. The flashing icon times out after 5 seconds of no button activity.
   • b. In single setpoint Auto mode, use the buttons to adjust the setpoint as usual.

Dual Setpoint Auto Mode (“AU” = “d” in Setup Mode) 

In dual setpoint Auto mode, separate heat and cool setpoints are used. When the ambient temperature drops below the heat setpoint, the unit calls for heat to maintain the heat setpoint. When the ambient temperature rises above the heat setpoint, the unit does not call for cooling until the temperature exceeds the cool setpoint. When the ambient temperature drops below the cool setpoint, the unit does not call for heating until the temperature is below the heat setpoint.

When dual setpoint Auto mode has been enabled, the Auto Dead Band is used to maintain a minimum separation between the heat and cool setpoints. If this separation is violated by a setpoint adjustment, the other setpoint is automatically adjusted.

For example, if the heat setpoint is at 68 degrees, the cool setpoint is at 72 degrees and the Auto Dead Band is set to 4 degrees, if the cool setpoint is lowered to 71 degrees, the heat setpoint is automatically adjusted to 67 degrees to maintain the 4 degree Auto Dead Band separation. In dual setpoint Auto mode, the CHV-TSTATEX-FCU display indicates whichever setpoint is closer to the ambient temperature. Both the heat and cool setpoints can be viewed simultaneously using a touch screen.

NOTE: When using a Dual setpoint, the CHV-TSTATEX-FCU has a 20 minute change limiter to prevent system toggling.

Single Setpoint Auto Mode (“AU” = “S” in Setup Mode)

In single setpoint Auto mode, a single setpoint is used for regulation at all times, regardless of whether the system is heating or cooling. The Auto Dead Band (db) setup parameter is used to determine when to switch between heating and cooling. For example, if the setpoint is at 70 degrees and the Auto Dead Band is set to 2 degrees, if the system is cooling, it does not start heating until the ambient temperature drops below 68 degrees (setpoint – Auto

Dead Band). Once the unit has switched to heating, it does not resume cooling until the ambient temperature rises above 72 degrees (setpoint + Auto Dead Band). A larger value for the Auto Dead Band setting results in less cycling between heating and cooling but can result in large temperature swings during the course of the day. Smaller values for the Auto Dead Band setting results in tighter temperature regulation but more frequent cycling between heating and cooling.

NOTE: When using a single setpoint, the CHV-TSTATEX-FCU has a 20 minute change limiter to prevent system toggling.

Fan
The FAN button toggles the fan setting between fan AUTO, fan high (F3), fan medium (F2) and fan low (F1). When set to AUTO, a fan call is made whenever the system makes a cool call or when the system makes a heat call (if the DIP switch is set to “Enabled”). When set to F3, F2 or F1 the fan always runs.

Setpoints

• The setpoint is the user selectable temperature the system maintains.
• The and buttons change the current setpoint by one degree F or C.

If thebutton is held down for 2 seconds, the unit enters an auto-repeat state and the setpoint adjusts rapidly until the button is released or until the upper (or lower) limit is reached.
Some users want to have setpoints change automatically based on the day of the week and the time of day. For example, in the winter they may want to lower the heat setpoint while they sleep to lower heating costs. To accommodate this, the CHV-TSTATEX-FCU provides a “Scheduled Heat Setpoint” and a “Scheduled Cool Setpoint” which can be specified by the control system program. This is handled automatically by the “Crestron CHV-TSTATEX-FCU w/5-2 Scheduler” module provided with the Crestron Database. Refer to the Crestron Studio help file or the SIMPL Windows help file for details.
For dual setpoint operation, refer to “Auto Mode” which starts on page 23.

Hold

• Hold allows the user to adjust the setpoint and maintains that setpoint until the unit is taken out of Hold. This means that any change to the scheduled heat or cool setpoint that occurs while in Hold is ignored until the unit is taken out of Hold.
• Pressing the MODE and FAN buttons simultaneously causes the unit to enter Hold if Hold is not yet active and the system mode is Heat, Emergency Heat or Cool.
• Pressing the MODE and FAN buttons simultaneously when Hold is active causes the unit to exit from Hold and recall either the scheduled heat setpoint or scheduled cool setpoint as appropriate to the system mode.
• If the system is in single setpoint Auto mode, exiting from Hold recalls the scheduled auto setpoint. If the system is in dual setpoint Auto mode, upon exiting from Hold, the auto cool setpoint becomes the scheduled cool setpoint and the auto heat setpoint becomes the scheduled heat setpoint.
• Pressing the MODE and FAN buttons simultaneously when the system mode is Off has no effect.
• When Hold is active, the unit continues to adjust the current setpoint when the
  or buttons are pressed. The unit also continues to adjust the current setpoint when the setpoint signal from the control system changes.
• When the system mode changes to Heat or Emergency Heat, the current setpoint is set to the scheduled heat setpoint.
• When the system mode changes to Cool, the current setpoint is set to the scheduled cool setpoint.

Remote Operation
As an infiNET EX device, the CHV-TSTATEX-FCU can be controlled remotely via a Crestron control system. Most often, control of the thermostat is achieved via a touch screen or Web-based graphical interface. In order to extend battery life, the thermostat only communicates with the control system once every 30 seconds or one minute, based on the infiNET EX Sleep Time setting. Because of this, there is a noticeable delay between the time a button is pressed on a touch screen and when the thermostat reacts to the command. To account for this, the CHV-TSTATEX-FCU modules written by Crestron and provided in the Crestron

• Database mimic the feedback from the thermostat so that the user sees an immediate response on the touch screen.
• Likewise, pressing a local button on the thermostat (for example, setpoint raise or lower) does not cause an immediate change to the corresponding display on a touch screen. Instead, the thermostat wakes up shortly after the last button press to send its updated status to the control system.
  If the thermostat is wired to have the optional 24 Vac at the 24C terminal and the power switch is set for 24 V, there is no delay in feedback.

LCD Display

CHV-TSTATEX-FCU LCD Display

LCD Display Elements

#	LCD DISPLAY ELEMENT	DESCRIPTION
1	Large 7-segment digits	Indicates current ambient temperature*. In Setup mode, indicates current setup parameter/function; Display range is limited to –9º to 99º F (-9º to 43º C); If the ambient temperature is above 99º, the display indicates 99º; If the ambient temperature is below –9º, the display indicates –9º
2	Small 7-segment digits	Indicates current setpoint (in F or C) in whole degrees; In Setup mode, indicates current value for selected setup parameter
3	Flame icon	Displayed when the system mode is Heat; Displayed with snowflake icon when system is in Auto mode
4	Snowflake icon	Displayed when the system mode is Cool; Displayed with flame icon when system is in Auto mode
5	Fan icon	Displayed at all times
6	AUTO indicator	Displayed when FAN setting is AUTO If this is not displayed, FAN is always ON
7	OFF indicator	Displayed when the system mode is Off
8	HOLD indicator	Displayed when the HOLD setting is active
9	H, C & F indicators	H – Displayed whenever a Heat Call is being made; C – Displayed whenever a Cool Call is being made; F – Displayed whenever a Fan Call is being made

Uploading and Upgrading

Crestron recommends using the latest programming software and that each device contains the latest firmware to take advantage of the most recently released features. However, before attempting to upload or upgrade it is necessary to establish communication. Once communication has been established, files (for example, programs or firmware) can be transferred to the control system (or device). Finally, program checks can be performed (such as changing the device ID or creating an IP table) to ensure proper functioning.

NOTE: Crestron software and any files on the website are for authorized Crestron dealers and Crestron Service Providers (CSP) only. New users must register to obtain access to certain areas of the site (including the FTP site).

Establishing Communication
Use Crestron Toolbox for communicating with the CHV-TSTATEX-FCU; refer to the Crestron Toolbox help file for details. There is a single method of communication: indirect communication.

The CHV-TSTATEX-FCU connects to the CEN-RFGW-EX (gateway), which connects to control system via Ethernet, or, the CHV-TSTATEX-FCU connects directly to an MC3 Control System.
Establish communications between the PC and the control system as described in the latest version of the 2-Series Control Systems Reference Guide (Doc. 6256). If connecting to the MC3, refer to the latest version of the MC3 3-Series Control System Operations Guide (Doc. 7095).

Programs and Firmware
Program or firmware files may be distributed from programmers to installers or from Crestron to dealers. Firmware upgrades are available from the Crestron Web site as new features are developed after product releases. One has the option to upload programs via the programming software or to upload and upgrade via the Crestron Toolbox. For details on uploading and upgrading, refer to the Crestron Studio help file, the SIMPL Windows help file, or the Crestron Toolbox help file.  If a Crestron Studio or SIMPL Windows program is provided, it can be uploaded to the control system using Crestron Studio, SIMPL Windows or Crestron Toolbox. Check the Crestron Web site to find the latest firmware. (New users must register to obtain access to certain areas of the site, including the FTP site.) Upgrade CHV-TSTATEX-FCU firmware via Crestron Toolbox.

1. Establish communications with the CHV-TSTATEX-FCU and display the “System Info” window.
2. Select Functions | Firmware… to upgrade the CHV-TSTATEX-FCU firmware.

NOTE: Since the CHV-TSTATEX-FCU might be “asleep”, there may be a delay of one minute or less before the update starts.

Program Checks

Using Crestron Toolbox, display the network device tree (Tools | Network Device Tree View) to show all network devices connected to the control system and all infiNET devices that have been acquired by the gateway. Right-click on the CHV-TSTATEX-FCU to display actions that can be performed on the CHV-TSTATEX-FCU.

Problem Solving

Troubleshooting
The following table provides corrective action for possible trouble situations. If further assistance is required, please contact a Crestron customer service representative.
CHV-TSTATEX-FCU Troubleshooting

TROUBLE	POSSIBLE CAUSE(S)	CORRECTIVE ACTION
No display.	No power from system.	Check for 24 Vac on 24C connector. Check circuit breaker powering furnace or boiler. Check thermostat wiring. Check batteries (if on battery power).
	Incorrect mounting to back plate.	Check thermostat mounting.
Device does	Device is not	Open Crestron Toolbox and select the
not follow	communicating	Network Device Tree View. Expand
control system	with the	the tree until the gateway to be
commands.	CEN-RFGW-EX.	managed is selected.
		Right-click the NET ID of the selected
		gateway to open the sub-menu and
		select Functions | infiNET EX
		Gateway… If device is not listed,
		acquire the device to the infiNET EX
		network (refer to ”Joining an infiNET
		EX Network” which starts on
	RF ID of device	Use the Network Device Tree infiNET
	(or the gateway	EX network in Crestron Toolbox to poll
	ID) is not set to	the infiNET EX network. Verify that the
	match the RF ID	RF ID for the infiNET EX device is set
	of the Crestrib	to match the RF ID specified in the
	Studio or SIMPL	Crestron Studio or SIMPL Windows
	Windows program.	program.
Heating/Cooling system is not operating.	No power to thermostat.	Check circuit breaker. Check for 24 Vac on 24C connector. Check circuit breaker powering furnace or boiler. Recheck wiring connections. Check batteries, replace if necessary.
Cannot change setpoint setting.	The upper or lower temperature limits were reached.	Heat setpoint lower limit is 38º F (3º C). Cool setpoint high limit is 59º F (37º C).
		Heat setpoint high limit and cool setpoint low limit is user defined and is defined during setup in the “HL” and “CL” screens.
		Refer to “Setup Mode Parameters/Functions” which starts on

TROUBLE	POSSIBLE CAUSE(S)	CORRECTIVE ACTION
System cycles too quickly.	Anticipator setting is too low.	Reprogram anticipator setting (refer to “Setup Mode Parameters/Functions” which starts on
Poor battery life.	Ensure that the power switch selection position is proper for the expected conditions.	Using the 24VAC position prevents power steal operation and causes a device to run on battery alone if no 24 V input is available.
		Using the STEAL position prevents the 24 V input from being used even if it is available.
		Cool-only applications with nothing connected to R or W cannot power-steal.
		Ensure heat system is available if using power steal or follow the cool-only notes in that section.
	Check for communication problems using standard RF troubleshooting.	Fringe communication and excessive gateway reconnect attempts cause extended runtime which consumes battery power more quickly.
	Unit is using remote sensors.	Avoid using remote sensors when running on battery alone. Setup system so that power-steal is available.
	A long backlight time is being used.	Avoid long backlight runtimes if the user interface is operated frequently.
Room has high temperature variance.	Anticipator setting is too high.	Reprogram anticipator setting (refer to “Setup Mode Parameters/Functions” which starts on .
Wide temperature variance in single setpoint Auto mode.	Auto Dead Band setting is too high.	Reprogram Auto Dead Band (db) setting (refer to “Setup Mode Parameters/Functions” which starts on .
Heating/Cooling not operating in single setpoint Auto mode.	20 minute system toggling lockout.	Reprogram Auto Dead Band (db) and anticipator settings for smoother operation (refer to “Setup Mode Parameters/Functions” which starts on
Cannot enter Auto mode.	Auto mode is disabled in setup.	Reprogram Auto mode setting (AU) to “S” (for single setpoint operation) or “d” (for dual setpoint operation) (refer to “Setup Mode Parameters/Functions” which starts on .

TROUBLE	POSSIBLE CAUSE(S)	CORRECTIVE ACTION
Wrong temperature is displayed.	Wrong temperature scale.	Select F or C as necessary.
	A Temperature Offset has been applied.	Reset Temperature Offset (refer to “Setup Mode Parameters/Functions” which starts on.
	Bad location.	Ensure the thermostat is located away from direct sunlight, drafts, doorways, skylights and windows or exterior walls.
	Incorrect sensor source.	Ensure that the settings on “ir” screen recall the temperature from the correct source. Refer to “Setup Mode Parameters/Functions” which starts on for additional information.
Heat or cool	Steal power	Change Power DIP Switch to 24VAC
call occurs but	function may be	and ensure that two AA batteries are
device does not	causing problems	installed.
indicate a heat	with HVAC
or cool call.	system.
	Improper wiring	Recheck wiring connections.
	connections.

Reference Documents

The latest version of all Documents mentioned within the guide can be obtained from the Crestron Web site (http://www.crestron.com/manuals).

List of Related Reference Documents

DOCUMENT TITLE

2-Series Control Systems Reference Guide

CEN-RFGW-EX infiNET EX Wireless Gateway

MC3 3-Series Control System

Further Inquiries
To locate specific information or to resolve questions after reviewing this guide, contact Crestron’s True Blue Support at 1-888-CRESTRON [1-888-273-7876] or refer to the listing of Crestron worldwide offices on the Crestron Web site  (www.crestron.com/offices) for assistance within a particular geographic region.

To post a question about Crestron products, log onto the Online Help section of the Crestron Web site (www.crestron.com/onlinehelp). First-time users must establish a user account to fully benefit from all available features.

Future Updates
As Crestron improves functions, adds new features and extends the capabilities of the CHV-TSTATEX-FCU, additional information may be made available as manual updates. These updates are solely electronic and serve as intermediary supplements prior to the release of a complete technical Documentation revision. Check the Crestron Web site periodically for manual update availability and its relevance. Updates are identified as an “Addendum” in the Download column.

Glossary

• Anticipators
  • Used to anticipate the drop or rise in temperature and energize the appropriate system before reaching the setpoint. Anticipators affect how tightly the setpoint temperature is maintained.
• Auto Dead Band
  • Sets the minimum separation in auto mode between heat and cool setpoints (with dual setpoints) or maximum drift before system latches alternate mode (with single setpoint).
• Blower (Fan)
  • An air-handling device for moving air in a distribution system.
• Call
  • A call is the action taken by the thermostat when it sends a signal to turn on the heating or cooling system.
• Extended Cool
  • Extends the cool setpoint range to the full auto range of 38 to 99°F.
• Humidity
  • The total amount of moisture in air. Relative humidity (RH) is the amount of moisture in air, relative to its total capability based upon its temperature (dew point). Moisture condenses on surfaces that are below this dew point.
• HVAC
  • Heating, ventilation and air conditioning.
• Setpoint
  • The user selectable temperature the system maintains.
• Time Delay (Timer Guards)
  • Refers to a safety device or circuit that does not allow restart for 3 minutes.

Return and Warranty Policies

Merchandise Returns / Repair Service

1. No merchandise may be returned for credit, exchange or service without prior authorization from Crestron. To obtain warranty service for Crestron products, contact an authorized Crestron dealer. Only authorized Crestron dealers may contact the factory and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number and return address.
2. Products may be returned for credit, exchange or service with a Crestron Return Merchandise Authorization (RMA) number. Authorized returns must be shipped freight prepaid to Crestron, 6 Volvo Drive, Rockleigh, N.J. or its authorized subsidiaries, with RMA number clearly marked on the outside of all cartons. Shipments arriving freight collect or without an RMA number shall be subject to refusal. Crestron reserves the right in its sole and absolute discretion to charge a 15%restocking fee plus shipping costs on any products returned with an RMA.
3. Return freight charges following repair of items under warranty shall be paid by Crestron, shipping by standard ground carrier. In the event repairs are found to be non-warranty, return freight costs shall be paid by the purchaser.

Crestron Limited Warranty
Crestron Electronics, Inc. warrants its products to be free from manufacturing defects in materials and workmanship under normal use for a period of three (3) years from the date of purchase from Crestron, with the following exceptions: disk drives and any other moving or rotating mechanical parts, pan/tilt heads and power supplies are covered for a period of one (1) year; touch screen display and overlay components are covered for 90 days; batteries and incandescent lamps are not covered.

This warranty extends to products purchased directly from Crestron or an authorized Crestron dealer. Purchasers should inquire of the dealer regarding the nature and extent of the dealer’s warranty, if any.
Crestron shall not be liable to honor the terms of this warranty if the product has been used in any application other than that for which it was intended or if it has been subjected to misuse, accidental damage, modification or improper installation procedures. Furthermore, this warranty does not cover any product that has had the serial number altered, defaced or removed.

This warranty shall be the sole and exclusive remedy to the original purchaser. In no event shall Crestron be liable for incidental or consequential damages of any kind (property or economic damages inclusive) arising from the sale or use of this equipment. Crestron is not liable for any claim made by a third party or made by the purchaser for a third party.

Crestron shall, at its option, repair or replace any product found defective, without charge for parts or labor. Repaired or replaced equipment and parts supplied under this warranty shall be covered only by the unexpired portion of the warranty.

Except as expressly set forth in this warranty, Crestron makes no other warranties, expressed or implied, nor authorizes any other party to offer any warranty, including any implied warranties of merchantability or fitness for a particular purpose. Any implied warranties that may be imposed by law are limited to the terms of this limited warranty. This warranty statement supersedes all previous warranties.

Regulatory Compliance
As of the date of manufacture, the CHV-TSTATEX-FCU has been tested and found to comply with specifications for CE marking and standards per EMC and Radiocommunications Compliance Labelling.

(FCC) Statement

Federal Communications Commission (FCC) Compliance Statement
CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
• Consult the dealer or an experienced radio/TV technician for help

Industry Canada (IC) Compliance Statement
CAN ICES-3(B)/NMB-3(B)

To satisfy RF exposure requirements, this device and its antenna must operate with a separation distance of at least 20 centimeters from all persons and must not be colocated or operating in conjunction with any other antenna or transmitter.

The specific patents that cover Crestron products are listed at patents.crestron.com.
Crestron, the Crestron logo, 3-Series Control System, Cresnet, Crestron Studio, Crestron Toolbox, D3 Pro, infiNET, infiNET EX and SystemBuilder are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography.

This document was prepared and written by the Technical Documentation department at Crestron. ©2013 Crestron Electronics, Inc.

Operations & Installation Guide – DOC. 7206C (2031609) 01.13

• Specifications subject to
• change without notice.

Crestron Electronics, Inc.

• Address: 15 Volvo Drive Rockleigh, NJ 07647
• Tel: 888.CRESTRON
• Fax: 201.767.7576
• www.crestron.com

Reference

Download Manual:

Crestron CHV-TSTATEX_FCU Wireless Programmable Thermostat Installation Guide

Crestron CHV-TSTATEX_FCU Wireless Programmable Thermostat Installation Guide