Crestron CHV-TSTAT & CHV-THSTAT
Thermostats
Operations and Installation Guide
Firmware Version v2.061.0018 and Later
This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
Regulatory Compliance
As of the date of manufacture, the CHV-TSTAT and CHV-THSTAT has been tested and found to comply with
specifications for CE marking and standards per EMC and Radiocommunications Compliance Labelling.
Federal Communications Commission (FCC) Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference received,
including interference that may cause undesired operation.
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
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
All brand names, product names and trademarks are the property of their respective owners.
Separately Powered Two Wire Heat Systems (Powered by an Independent
Transformer)
Single Stage Heat Only Systems ............................................................................... 12
Single Stage Heat with Fan Control Systems............................................................ 13
Single Stage Cool Only Systems ............................................................................... 13
Single Stage Heat/Cool with Integrated Control Unit Systems .................................14
Single Stage Heat/Cool with Separate Systems......................................................... 15
Single Stage Heat Pump Systems.............................................................................. 16
Two Stage Heat Pump Systems................................................................................. 17
Slab 1, Slab 2, and Slab 3 (Floor Warming and/or Space Heating) Systems ............18
Slab 4A Two Stage Heat/Single Stage Cool Systems and Slab 5A Floor Warming
with Single Stage Space Heat/Cool Systems
Slab 4B Two Stage Heat/Single Stage Cool System and Slab 5B Single Stage
Heat/Cool with Floor Warming Systems
General Humidifier Connections...............................................................................21
ii • Contents Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Quick Installation Reference
1. Select a suitable location and run the connecting wires from the heating/cooling system and the Cresnet system.
Refer to page 7 for a description of the thermostat connectors.
Refer to page 9 for Network wiring details.
Use the appropriate wiring diagram:
• Separately Powered Two Wire Heat Systems
(Powered by an Independent Transformer) (Refer to page 12)
• Single Stage Heat Only (Refer to page 12)
• Single Stage Heat with Fan Control (Refer to page 13)
• Single Stage Cool Only (Refer to page 13)
• Single Stage Heat/Cool with Integrated Control Unit (Refer to page 14)
• Single Stage Heat/Cool with Separate Systems (Refer to page 15)
• Single Stage Heat Pump (Refer to page 16)
• Two Stage Heat Pump (Refer to page 17)
• Slab 1, Slab 2, and Slab 3 (Floor Warming and/or Space Heating) (Refer to page 18)
• Slab 4A Two Stage Heat/Single Stage Cool Systems and Slab 5A Floor Warming with Single Stage
Space Heat/Cool (Refer to page 19)
• Slab 4B Two Stage Heat/Single Stage Cool System and Slab 5B Single Stage Heat/Cool with Floor
Warming (Refer to page 20)
• General Humidifier Connections (Refer to page 21)
2. Separate the thermostat from the backplate to expose the connections and mounting holes.
3. Mount the thermostat backplate (60 inches (1.5 meters) above the finished floor) directly to the wall with wall
anchors (not provided) and screws (not provided) or to a single-gang box (not provided) mounted horizontally,
and connect the wiring. Refer to page 22 for detailed mounting instructions and page 9 for detailed connector
information. If using a five-sided box, fill with insulation material to minimize wall air ingress.
4. Install the thermostat on the backplate (Refer to page 22).
5. Setup the thermostat (Refer to page 24).
Heat/Cool Radiant and Forced Air Systems Setup on page 27.
Heat Pump Systems on page 31.
Slab Systems begin on page 35.
6. Configure the thermostat (Refer to “Thermostat Operation” on page 63).
Operations and Installation Guide – DOC. 8163D Contents • iii
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Thermostats:
Thermostats: CHV-TSTAT and
CHV-THSTAT
CHV-THSTAT
Introduction Introduction
Functions and Features
The CHV-TSTAT and CHV-THSTAT are versatile heating and cooling thermostats
designed for one and two stage control of forced air, radiant, and heat pump HVAC
systems. The CHV-TSTAT provides temperature control, while the CHV-THSTAT
provides temperature control with an integrated humidistat. Relative humidity
capability can be added to the CHV-TSTAT through an external remote humidity
sensor (sold separately).
Although functional as standalone thermostats, the CHV-TSTAT and
CHV-THSTAT deliver greatly enhanced functionality as part of a complete Crestron
®
automation system. The thermostats are available in six different models:
Home
Models
DESCRIPTION MODEL NUMBER COLOR
Heating/Cooling Thermostat
Heating/Cooling and
Humidity Thermostat
• User adjustable temperature and/or humidity control of one and two-stage
heating and cooling systems
• Supports seven slab system configurations
• 128 x 64 Transflective 2.75 inch (70 mm) LCD display
• Fahrenheit or Celsius indication
• Four-front panel buttons for setup, configuring and temperature/humidity
adjustments
• Back light (with each button press) for night viewing
• Supports up to four remote temperature and/or temperature/humidity sensors.
• Operates as a stand-alone device or in a Cresnet
• Extended functionality as a Cresnet device for lighting control, alarms, etc.
CHV-TSTATA Almond
CHV-TSTATB Black
CHV-TSTATW White
CHV-THSTATA Almond
CHV-THSTATB Black
CHV-THSTATW White
®
system
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 1
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Featuring a large backlit LCD display, the CHV-TSTAT and CHV-THSTAT
thermostats are navigable using four simple pushbuttons which provides easy access
to indoor and outdoor temperature and humidity readings, setpoint adjustments,
system mode and fan status indicators, and setup menus. Climate control features
include separate heating, cooling, and humidity setpoints with optional automatic
changeover between heating and cooling modes. Adjustable anticipators prevent
overshooting the set temperature, and continuous fan operation can be selected when
needed for increased circulation.
Multiple Crestron thermostats may be networked via Cresnet to a PAC2, PAC2M, or
other 2-Series control system, enabling global temperature and humidity adjustment
from any thermostat. Automation functions such as lighting, motorized blinds, or
lawn sprinklers can be accessed through two custom remote function pages, and
customized text messages can be sent to the LCD display to provide maintenance
reminders and other alerts.
Its connection to the control system also enables full control and scheduling of the
CHV-TSTAT/CHV-THSTAT from touchpanels and computers throughout the
home, and supports extensive flexibility for integration with other devices and
systems. In the event that communication with the control system is disrupted for
any reason, the CHV-TSTAT/CHV-THSTAT will remain operable to control the
HVAC system.
Optional remote temperature and humidity sensors can be connected to the
CHV-TSTAT/CHV-THSTAT 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-TSTAT/CHV-THSTAT to be
installed out of view. Outdoor climate can also be monitored, enabling outdoor lowtemperature compensation to prevent condensation on windows during cold weather.
The CHV-TSTAT/CHV-THSTAT accepts up to four remote temperature sensors,
two remote temp/humidity sensors, or a combination of one temp/humidity and two
temperature sensors.
Firmware Versions
The new features, and consequent changes to the SIMPL Windows symbol
programming, for firmware version 2.0 and later make it incompatible for use with
X-generation control processors. In addition, upgrading to release 2.0 and later from
a previous release will require a complete re-programming of the thermostat.
Remote Sensors
Firmware version 2.0 and later supports up to four optional remote sensors, two for
each input channel: temperature only (CHV-RTS), temperature/humidity
(CHV-RTHS), and slab sensor (CHV-RSS) for both thermostats. Information from
two sensors that share an input channel is averaged together in the
temperature/humidity calculations.
Outdoor conditions, -40º to 170º F (-40º to 77º C), can be imported from the
CHV-RSS slab sensor.
For additional information about the sensors, refer to the latest revision of the
CHV-RTS & CHV-RTHS Installation Guide (Doc. 8189), and the CHV-RSS
Installation Guide (Doc.6229) which are available from the Crestron
www.crestron.com).
(
2 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
®
website
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Heating and Cooling Systems
The CHV-TSTAT and CHV-THSTAT can control the following heating and cooling
systems:
• One stage heat
• One stage heat, one stage cool
• One stage heat, one stage cool (heat pump with auxiliary heat)
• Two stage heat
• Two stage heat, one stage cool
• One stage heat, two stage cool
• Two stage heat, two stage cool
• Two stage heat, two stage cool (heat pump with auxiliary heat)
• Wide range cool option suitable for wine cellars or other chilling processes*
• Slab settings for heating and floor warming systems*
NOTE:Two Stage Heating – Unlike traditional furnaces that turn on and run at full
capacity with each demand for heating, two-stage heat operates like two separate
furnaces to maintain more consistent comfort in your home. The unit starts out
running in its first stage, and operates at a fraction of its heating capacity. This
reduced capacity is sufficient to warm your home on mild winter days. But when the
temperature outside goes very low, the furnace adjusts to full capacity (second stage)
to meet the demand for heat within the home.
Two Stage Cooling – In warm weather, the first stage of the cooling equipment
operates at a fraction of the total cooling capacity. On very hot days, the second stage
of the cooling equipment energizes, and the cooling system operates at full capacity.
*Firmware version 2.0 or higher.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 3
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Specifications
The following table provides a summary of specifications for the CHV-TSTAT and
CHV-THSTAT.
CHV-TSTAT and CHV-THSTAT Specifications
SPECIFICATION DETAILS
Measurement Range
Indoor Temperature 0° to 110°F (-18° to 43°C)
Outdoor Temperature -40º to 170º F (-40º to 77º C)
Humidity 0% to 100% RH
1,2
Setpoint Range
Auto Setpoint (union of
38° to 99°F (3° to 37°C)
heat and cool setpoint
ranges)
Heat only Setpoint 38° to 89°F (3° to 32°C)
Cool only Setpoint 59° to 99°F (15° to 37°C)
Humidity Setpoint 5% to 90 % RH
1,2
Relay Rating 1 Amp @ 40 Volts DC or 24 Volts AC (nominal)
Power Requirements
24V
2 Watts (0.083 Amps) @ 24 Volts AC, supplied
by heating or cooling system
Cresnet Power Usage
<1 Watts (<0.05 Amps @ 24 Volts DC),
required for Cresnet communication only
Display
Type Transflective LCD, backlit
Size 2.75 in (70 mm)
Resolution 128 x 64
Viewing Angle
±50° horizontal (@0° vertical), ±50° vertical
(@0° horizontal)
Default Net ID 2A
Minimum 2-Series Control
System Update File
3, 4
Version 3.080.CUZ or later
Environmental
Temperature 41º to 104º F (5º to 40º C)
Humidity 10% to 90% RH (non-condensing)
Enclosure Plastic
Dimensions
Height 3.75 in (96 mm)
Width 5.00 in (127 mm)
Depth 1.04 in (27 mm)
Weight 5.80 oz (165 g)
1. Outdoor temperature/humidity sensing requires additional remote sensors, sold separately.
2. CHV-TSTAT requires additional remote humidity sensor for indoor humidity sensing, sold
separately.
3. The latest software versions can be obtained from the Crestron website. Refer to the NOTE
following these footnotes.
4. Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product
Catalog for a complete list of 2-Series control systems.
1
4 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
NOTE: Crestron software and any files on the website are for authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).
Physical Description
This section provides information on the connections, controls and indicators
available on your CHV-TSTAT and CHV-THSTAT.
CHV-TSTAT and CHV-THSTAT Physical View
o
68
HEATING
HEAT ONLY
ON LINE
F
66
o
%
F
43
H1 H2 AX
CHV-TSTAT and CHV-THSTAT Overall Dimensions (Front View)
5.00 in
(127 mm)
1
2
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 5
MODE
VIEW
3
3.75 in
(96 mm)
4
5
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
CHV-TSTAT and CHV-THSTAT Overall Dimensions (Side and Rear Views)
1.04 in
(27 mm)
3.27 in
(84 mm)
CHV-TSTAT and CHV-THSTAT Backplate (Front Cover Removed)
6
7
8
9
TOP
Y
HUM
RHRCG
RS1
RS2
RSR
RSR
RHU
Y/Y1
Y2
24(C)
24(R)
B
W/W1
O
W2
24V
NETWORK
Z
G
6
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Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Connectors, Controls & Indicators
# CONNECTORS,
DESCRIPTION
CONTROLS &
INDICATORS
1 MODE BUTTON
2 VIEW BUTTON
3
4
(DOWN BUTTON)
5 LCD DISPLAY
6
1. Outdoor temperature/humidity sensing requires additional remote sensors, sold separately.
2. CHV-TSTAT requires additional remote humidity sensor for indoor humidity sensing, sold
separately.
▲
(UP BUTTON)
▼
CONTROL
CONNECTIONS
(SYSTEM
DEPENDENT)
Access to the user controls (system mode,
fan mode, humidifier, Crestron system, and
global update)
Access to humidity reading
temperature reading
messages
Selects user modes and increments
selection in setup modes
Selects user modes and decrements
selection in setup modes
Displays ambient temperature, humidity,
current setpoint, current activity, current
function, system information, internal relay
status, control system communication errors,
firmware download progress, setup
parameter/function and values
Terminal blocks
HUM: Energized to RHU during humidity
call
RHU: Reference for humidifier
RH: Reference Heat, used for calls to
heating system
RC:Reference Cool, used for calls to
cooling system
G:Fan, energized to RC during call for
fan
Y/Y1: Compressor (stage one), energized
to RC when compressor (or first
stage) is run
Y2:Compressor (stage two), energized
to RC on two-stage systems on call
for second stage
O:Changeover control, energized to
RC during cooling modes
B:Energized to RC during non-cooling
modes
W/W1: Heat (single stage)/heat (stage one)
energized to RH during a call for
heat in heat/cool systems or aux
heat in heat pump systems
W2:Heat (stage two), energized to RH
during a call for second stage heat in
heat/cool systems
1,2
1,2
, outdoor
, and system
(Continued on following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 7
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Connectors, Controls & Indicators (Continued)
# CONNECTORS,
CONTROLS &
INDICATORS
7
8
9 NETWORK
REMOTE SENSING
CONNECTIONS
(OPTIONAL)
POWER
CONNECTIONS
(REQUIRED)
(OPTIONAL)
DESCRIPTION
Terminal block
RSR: Remote Sensor Returns – Common
sensor terminal
RS1:Remote Sensor terminal – Connect
the sensor from RS1 to RSR
RS2:Remote Sensor terminal – Connect
the sensor from RS2 to RSR
Terminal block
24 (C): 24 VAC common terminal supplies
remote 24 VAC power to thermostat
24 (R): 24 VAC reference terminal. Can be
connected to RH or RC by P4
jumper setting, or tied directly to
power source (refer to “System
Connections” on page 10)
Terminal block, connects to Cresnet control
network
24: Power (24 Volts DC)
Y: Data
Z: Data
G: Ground
8 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Setup
Network Wiring
When wiring the Cresnet® network, consider the following:
• Use Crestron Certified Wire.
• Use Crestron power supplies for Crestron equipment.
• Provide sufficient power to the system.
• For networks with 20 or more devices, use a Cresnet Hub/Repeater (CNXHUB)
to maintain signal quality.
CAUTION: Insufficient power can lead to unpredictable results or damage to the
equipment. Please use the Crestron Power Calculator to help calculate how much
power is needed for the system (
For more details, refer to “Check Network Wiring” on page 81.
Identity Code
www.crestron.com/calculators).
The Net ID of the CHV-TSTAT/CHV-THSTAT has been factory set to 2A. The Net
IDs of multiple CHV-TSTAT/CHV-THSTAT devices in the same system must be
unique. Net IDs are changed from a personal computer (PC) via Crestron Toolbox™
(refer to “Establishing Communication” on page 75).
When setting the Net ID, consider the following:
• The Net ID of each unit must match an ID code specified in the SIMPL™
Windows program.
• Each network device must have a unique Net ID.
For more details, refer to the Crestron Toolbox help file.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 9
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
System Connections
NOTE: Installers should have a strong working knowledge of HVAC systems.
CHV-TSTAT and CHV-THSTAT Backplate – Front View With Cover Removed
HUM - Energized (connected) to RHU during humidity call
RHU - Reference for humidifier
RSR - Remote Sensor Returns - Common sensor terminal
RS1 - Remote Sensor terminal - Connect the sensor from RS1 to RSR
RS2 - Remote Sensor terminal - Connect the sensor from RS2 to RSR
24(C) - 24 VAC common terminal supplies remote 24 VAC power
to thermostat
24(R) - 24 VAC reference terminal. Can be connected to RH or RC
by P4 jumper setting (refer to following page), or tied directly
to power source
Network Connection
TOP
Y
Z
RS1
RS2
HUM
RSR
RSR
RHU
24(C)
24(R)
24V
NETWORK
G
for Crestron
Installer Only
RH
RC
Y/Y1
Y2
G
W/W1
B
O
W2
Backplate
W2 - Heat (stage two), energized (connected) to RH during a call for
to RH during a call for heat in heat/cool systems or aux heat
in heat pump systems or Slab Heat in Slab Systems.
B - Energized to RC during non-cooling modes
O - Changeover control, energized to RC during cooling modes
Y2 - Compressor (stage two), energized to RC on two-stage
systems on call for second stage
Y/Y1 - Compressor (stage one), energized to RC when
compressor (or first stage) is run
G - Fan, energized to RC during call for fan
RC - Reference Cool, used for calls to cooling system
RH - Reference Heat, used for calls to heating system
10 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Wiring Diagrams
The wiring diagrams that follow show connections for the CHV-TSTAT and
CHV-THSTAT. The heating or cooling system can supply power to the thermostat,
or a separate transformer can supply it. In many installations, spare conductors are
available to supply 24 VAC to the thermostat, using the C (24 VAC common)
connection on the HVAC equipment.
The P4 jumper internally connects either the RH (Reference Heat system) or RC
(Reference Cooling system), relieving the installer from connecting a jumper from
the 24(R) terminal to the RH or RC terminal.
If power is available from the HVAC system, follow the diagrams for the proper P4
jumper connection.
When power is not available from the HVAC system, a separate transformer,
connected between 24(R) and 24(C) terminals, can provide power to the thermostat.
When powered by a separate transformer, ensure that the P4 jumper is connected
across pins 2 and 3 (No Connection) to prevent damage to the thermostat and the
HVAC system.
CAUTION: The P4 Jumper Position on the Circuit Board is critical to proper
operation. Improper P4 jumper position can cause equipment damage. The P4
jumper connects the 24(R) terminal to the RH, or RC connector. Refer to the
following illustration.
P4 Jumper Position
P4
1
Connects 24(R) to RH
2
No Connection
3
4
NOTE: Ensure that the power circuits are shut off at the source before connecting
the thermostat. Provide disconnect means and overload protection as required for the
power supply.
NOTE: Ensure that the transformer has sufficient power for all the thermostats in
the system, or use multiple transformers. Refer to the power requirements in
“Specifications” on page 3.
The following diagrams are examples of connections for heat, heat/cool and onestage and two-stage heat pump systems, and various slab systems.
NOTE: Use either connector O or B as required, for changeover control.
Connects 24(R) to RC
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 11
Single Stage Heat Only System Powered – P4 Jumper Connects Pins 1 and 2
12 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Single Stage Heat with Fan Control Systems
Single Stage Heat with Fan Control – P4 Connects Pins 1 and 2 – Additional Jumper Connects RH to RC
Single Stage Cool Only Systems
Single Stage Cool Only – P4 Jumper Connects Pins 3 and 4
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 13
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Single Stage Heat/Cool with Integrated Control Unit
Systems
Single Stage Heat/Cool with Integrated Control Unit – P4 Jumper Connects Pins 1 and 2 – Additional Jumper RH to RC
14 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Single Stage Heat/Cool with Separate Systems
Single Stage Heat/Cool with Separate Systems – Heating System Powered – P4 Jumper Connects Pins 1 and 2
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 15
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Single Stage Heat Pump Systems
Single Stage Heat Pump – P4 Jumper Connects Pins 3 and 4– Additional Jumper RH to RC
16 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Two Stage Heat Pump Systems
Two Stage Heat Pump System – P4 Jumper Connects Pins 3 and 4 – Additional Jumper RH to RC
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 17
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 1, Slab 2, and Slab 3 (Floor Warming and/or
Space Heating) Systems
Slab 1, Slab 2, and Slab 3 Systems (Floor Warming and/or Space Heating) – P4 Jumper Connects Pins 1 and 2
18 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 4A Two Stage Heat/Single Stage Cool
Systems and Slab 5A Floor Warming with Single
Stage Space Heat/Cool Systems
Heat/Cool Style Connections
Slab 4A – P4 Jumper Connects Pins 1 and 2 – Jumper Connects RH to RC
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 19
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 4B Two Stage Heat/Single Stage Cool System
and Slab 5B Single Stage Heat/Cool with Floor
Warming Systems
Heat Pump Style Connections
Slab 4B – P4 Jumper Connects Pins 3 and 4 – Additional Jumper Connects RH to RC
20 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
General Humidifier Connections
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 21
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Installation
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 programming, and do not
mount on an exterior wall. The thermostats may be mounted directly to drywall or to
a single-gang box.
Thermostats and sensors are mounted 60 inches (1.5 meters) above the finished floor
(HVAC industry standard).
Refer to the following illustrations. Do the following to install the CHV-TSTAT or
the CHV-THSTAT.
NOTE: When installing directly on drywall, use anchoring screws and hardware.
Make sure the back of the thermostat is flush with drywall and the unit is level.
Required Hardware
• Thermostat
• Phillips screwdriver (not supplied)
• Two 6/32 x 1 inch panhead screws (supplied) for mounting to a
single-gang box
• Single-gang box (not supplied)
• Wall anchors (not supplied) and screws (not supplied) for
mounting directly to drywall
1. Separate thermostat front plate from back plate (you may need to exert force
when removing the faceplate).
2. Turn off the circuit breaker when connecting power to the thermostat, and
connect wiring as required (wiring goes through center hole on back plate).
NOTE: Ensure the correct position of the P4 jumper; refer to pages 11 through 20.
3. Attach back plate to drywall with screws and anchors (anchor hardware not
provided) 60 inches above the finished floor. Thermostat may also be
mounted to a single-gang box mounted horizontally, using the two
6/32 x 1 inch panhead screws provided. If using a five-sided single-gang
box, fill with insulation material to minimize wall air ingress. Ensure that
the thermostat is level and the ventilation holes in the backplate are not
blocked.
4. Note orientation of front plate connection leads and reattach the front plate
on the back plate (make sure front plate snaps in place and no wires are
pinched).
NOTE: If replacing an existing thermostat, make note of the wire colors and
positions before removing the old thermostat.
22 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Installing the CHV-TSTAT and CHV-THSTAT in a Horizontal-Mount Single Gang Box
NOTE: Install insulation (not supplied) in the single gang box to prevent inaccurate readings.
Stud
Panhead
6/32 x 1 in
Installing the CHV-TSTAT and CHV-THSTAT directly to the wall
Mounting
Screws
(not provided)
Single-gang
electrical box
(not provided)
Wall Anchors
(not provided)
Backplate
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 23
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Thermostat Setup
Setup Procedure
After the thermostat is installed, it is necessary to set it up for a particular
heating/cooling system. There are nine types of heating and cooling systems. The
available choices displayed on the setup screens depend on the type of system
selected. Follow these directions to access the setup screens.
1. Press and hold the MODE and VIEW buttons simultaneously for five
seconds to access the setup menus.
2. Press VIEW to select the parameter. A box appears around the selected
parameter.
3. Press the Arrow keys (▲▼) to choose the value of the selected parameter.
4. Use the MODE button to advance to the next setup screen.
CHV-TSTAT and CHV-THSTAT Setup
Advance to next
Setup Screen
Advance to next
selection on current
Setup Screen
T
T
Change value
of selected
parameter
MODE
VIEW
CRESTRON
Setup Notes
The following are general setup notes.
NOTE: Refer to “System Connections” on page 10 for remote sensor connections to
the thermostat.
NOTE: The Offset option permits recalibration of the room temperature sensor.
There are various reasons why users may want to adjust the temperature. The
selection number is the number of degrees added or subtracted to the actual
temperature. The range is -6° to +6°F. Factory default is 0°F. This adjustment
changes the actual regulated temperature, not just the display.
NOTE: The sensors are used for temperature and humidity averaging. Choose USE
to include each sensor, or OMIT to exclude each sensor in the averaging equation.
Sensors that have the same designation (for example, outdoor) are averaged together.
NOTE: The thermostat will not leave the setup mode unless a valid sensor selection
is made.
24 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
NOTE: When the Reverse SMODE Dir (reverse system mode direction) selection
is set to Yes on the Screen Options page, the arrow keys (▲ ▼) can be used to select
system mode functions in both directions.
NOTE: If an out-of-range setpoint is entered, it will be ignored.
NOTE: The Screen Options selected in Setup are seen when the View key is pressed
in normal operation.
System Types and Definitions
The first setup choice is the heat system type. There are three main types of
heating/cooling systems:
1. Heat/Cool, Radiant Heat or Forced Air Heating/Cooling, 1 or 2 Stages
2. Heat Pump, 1 or 2 Stages, Auxiliary Heat or Dual Fuel
3. Slab System (Slab1 through Slab 5B)
1. Heat/Cool Systems Definitions
Radiant Heat: Radiant heat is a form of hydronic (hot water) heat that
circulates hot water through pipes (baseboard radiation systems) or special
tubing and installs on the perimeter of the house or underneath floors.
Forced Air: In a ducted heating/cooling system, a large fan (blower) forces
heated air from the furnace into the ducts and enters the rooms through a
register or grill in the floor or wall.
One or Two Stages:1 Unlike traditional furnaces that turn on and run at
full capacity with each demand for heating, two-stage furnaces operate like
two separate furnaces. The unit begins to run in its first stage, and operates
at a fraction of its heating capacity. This reduced capacity is sufficient on
mild winter days. On very cold days, the furnace adjusts to full capacity
(second stage) to meet the demand for heat.
Heat/Cool system setup begins on page 27.
2. Heat Pump Systems Definitions
A heat pump extracts available heat from one area and transfers it to
another. Even cold air contains some heat, and heat pumps can extract heat
from the outside air on a cold day and transfer it indoors to maintain a
comfortable temperature. A heat pump also works in reverse during the
summer, extracting heat from indoors and transferring it outdoors.
Dual Fuel: A dual fuel system combines an energy-efficient air-source heat
pump with a new or existing oil, gas or propane furnace. The furnace runs
in place of the heat pump in cold weather.
Aux (Auxiliary) Heat: When the a heat pump can no longer efficiently
transfer heat from the outside air, the thermostat automatically turns on a
secondary heat source, such as electric resistive heat.
Heat pump system setup begins on page 31.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 25
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
3. Slab Systems Definitions
Slab heating works from the ground up. The heating components are
installed below the floor or are embedded in a concrete slab. Heat radiates
from the floor to warm the space above. The CHV-TSTAT and
CHV-THSTAT support seven variations of slab heat systems.
SLAB 1: Floor warming only. Operates the slab heat to maintain a
particular slab temperature. System mode is enabled/disabled with Floor
Warming Heat and OFF inputs. Slab is maintained at the slab setpoint
temperature value. Connection to the slab output relay is terminal W1.
Refer to setup on page 35.
SLAB 2: One stage space heat with slab maximum. Maintains a particular
air temperature using the slab to heat the space. Will not heat over the slab
maximum temperature even if this results in the space being under-heated.
Connection to the slab output relay is terminal W1. Refer to setup on page
39.
SLAB 3: One stage space heat with slab maximum and slab minimum.
Performs the same operation as SLAB 2, and also keeps the slab at least as
warm as slab setpoint. This may result in the space being overheated to
maintain the slab minimum temperature. Connection to the slab output relay
is terminal W1. Refer to setup on page 43.
SLAB 4A: Two-stage space heat with slab maximum and one stage cool.
Maintains the air temperature using the slab for heat, up to the slab
maximum. Augments the air heating by using a second stage of heat
(generally a forced air system). Allows the second stage to operate by itself
should the slab reach is maximum temperature and shut off. Cools the
space with cooling call. Intended for heat-cool type forced air systems, with
relay output connections to terminal W1 for slab, terminal W2 for 2
heat, and terminal Y1 for cooling. Refer to setup on page 47.
SLAB 4B: Same operation as SLAB4A, but intended for a heat pump type
second stage. Relay output connections are terminal W1 for slab heat, with
heat pump-type connections on terminals Y1/O/G for cooling and heating
calls. Aux heat is on terminal W2. Refer to setup on page 51.
SLAB 5A: One stage space heat and cool with floor warming. Combines
the operation of a space heating/cooling thermostat with a floor-warming
thermostat. Maintains the slab at slab setpoint, and maintains the space at
the heat, cool, or auto setpoints. Systems effectively operate independently.
Heat/Cool/Auto/Off sets the space control modes, and Floor Warming
HEAT/OFF sets the slab mode. Intended for heat-cool style systems, with
slab connection on terminal W1, space heat on terminal W2, and space cool
on terminal Y1. Refer to setup on page 55.
SLAB 5B: Same as SLAB5A, but for heat pump space systems, with slab
heat on terminal W1, and space heat/cool on terminals Y1/O/G. Aux heat is
on terminal W2. Refer to setup on page 59.
nd
stage
26 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Heat/Cool, 1 or 2 Stages, Forced Air or Radiant
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter setup.
Heat System Type: H/C (Heat/Cool)
# Heat Stages: One or two heat stages.
# Cool Stages: One or two cool stages.
Radiat /F. Air: Radiant or Forced Air Heat.
ACCUMULATED ERROR THRESHOLD
TO TRIGGER 2ND/AUX STAGE
1=SMALL TIME,5=LARGE TIME
6=DEFEAT ACCUMULATED STAGING
Staging Accum Thresh 4
Heat & Cool Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
NOTE: A setting of 3 is recommended for most
installations.
Interstage Differential: (0.5º – 8.0ºF).
The proportional temperature error to trigger the second
stage.
Staging Accumulated Threshold (1 – 6)
The feature will optimize triggering of the second stage to
meet demand in instances where the first stage cannot reach
the interstage differential or achieve the desired setpoint.
PressTo Continue
Low number = more aggressive trigger for second stage.
High number = less aggressive trigger for second stage (6
will disable this feature altogether).
NOTE: A setting of 3 is recommended for most
installations.
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 27
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Heat/Cool, 1 or 2 Stages, Forced Air or Radiant (Continued)
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
Y
Y
N
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier
output to prevent condensation on windows. Requires an
outdoor temperature source (CHV-THSAT, or CHV-TSTAT
with CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to
trigger the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
CHV-THSTAT
[v2.0, #D8000000]
This screen displays Model number, Firmware version and
TSID.
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
(Continued on the following page)
28 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Y
Y
Y
Y
N
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Heat/Cool, 1 or 2 Stages, Forced Air or Radiant (Continued)
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
F
0
0
Y
HM
Y
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
Wide Range Cool:
Run Fan in Ht Calls:
Auto DdBand Deg:
Disable Auto Mode:
EXTENDED COOL SETPOINT
RANGE 38-99F (3-37C)
PressTo Continue
N
N
0
2
N
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
Wide Range Cool: Extends cool setpoint to full auto range
of 38º – 99ºF (3º – 37ºC).
Run Fan in Heat Calls:
Options available if # Heat Stages = 1:
Y: Select if your heating system requires fan control.
N: Disables fan call operation for heat calls.
Options available if # of Heat Stages = 2:
--: Disables fan call operation for heat calls.
1/2: Fan called for first and second stage.
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
2: Fan called for second stage only.
NOTE: Most heating systems run the fan automatically.
Auto Mode Dead Band: (2 – 6) The minimum differential
between heating and cooling setpoints (Dual Setpoint Auto
set to Yes in Display Options).
Disable Auto Mode: Will not display Auto on System Mode
screen and will not permit entering the auto mode even from
Cresnet commands.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 29
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Heat/Cool, 1 or 2 Stages, Forced Air or Radiant (Continued)
SETUP: HUMIDITY SENSORS
SETUP: H-SENSORS
TRIM
INTERNAL: -5
REMOTE 1: 0
REMOTE 2: 0
% RH
45
50
30
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
SETUP: SERVICE/TEST
SETUP: SERVICE/TEST
Heat Call:
Cool Call:
Humidifier Call:
Fan Run Call:
OFF
OFF
OFF
OFF
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
30 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Heat Pump, 1 or 2 Stages, Aux Heat or Dual Fuel
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter the setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
# of Stages:
HP/AUX or DF:
HEATPUMP SYSTEM
PressTo Continue
HPump
2
HP/Aux
Heat System Type: Heat Pump
# of Stages: (1 – 2) Select one or two stages.
HP/Aux or Dual Fuel: Dual fuel runs either the heat pump
or the aux output, depending on outdoor temperature. The
heat pump with aux can stage the heat when required to
improve performance.
• Dual Fuel: A dual fuel system combines an energy-
efficient air-source heat pump with a new or existing oil,
gas or propane furnace. The furnace runs in place of the
heat pump in cold weather.
• Aux (Aux iliary) Heat: When the a heat pump can no
longer efficiently transfer heat from the outside air, the
thermostat automatically turns on a secondary heat
source, such as electric resistive heat.
HP Balance Pt:
AUX Balance Pt:
Staging Accum Thresh:4
Heat & Cool Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
Interstage Differential: (0.5º – 8.0ºF)
The proportional temperature error to trigger the second
stage.
HP Balance Point: (0º – 90ºF or N/A) Minimum outdoor
temperature at which the heat pump runs (requires an
outdoor temperature source).
AUX Balance Point: (0º – 90ºF or N/A) Maximum outdoor
temperature at which Aux heat system supplements the heat
pump (requires an outdoor temperature sensor).
PressTo Continue
Staging Accumulated Threshold: (1 – 6)
The feature will optimize triggering of the second stage to
meet demand in instances where the first stage cannot reach
the interstage differential or achieve the desired setpoint.
Low number = more aggressive trigger for second stage.
High number = less aggressive trigger for second stage (6
will disable this feature altogether).
NOTE: A setting of 3 is recommended for most
installations.
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 31
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Heat Pump, 1 or 2 Stages, Aux Heat or Dual Fuel (Continued)
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
Y
Y
N
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier
output to prevent condensation on the windows. Requires an
outdoor temperature source (CHV-THSAT, or CHV-TSTAT
with CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to
trigger the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
CHV-THSTAT
[v2.0, #D8000000]
PressTo Continue
This screen displays Model number, Firmware version and
TSID.
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
(Continued on the following page)
32 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Y
Y
Y
Y
N
Select options to be displayed when the VIEW button is pressed
in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Heat Pump, 1 or 2 Stages, Aux Heat or Dual Fuel (Continued)
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
F
0
0
Y
HM
Y
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
Wide Range Cool:
Run Fan in Ht Calls:
Auto DdBand Deg:
Disable Auto Mode:
EXTENDED COOL SETPOINT
RANGE 38-99F (3-37C)
PressTo Continue
N
N
0
2
N
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
Wide Range Cool: Extends cool setpoint to full auto range
of 38º – 99ºF (3º – 37ºC).
Run Fan in Heat Calls:
Options available if # Heat Stages = 1:
Y: Select if your heating system requires fan control.
N: Disables fan call operation for heat calls.
Options available if # of Heat Stages = 2:
--: Disables fan call operation for heat calls.
1/2: Fan called for first and second stage.
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
2: Fan called for second stage only.
NOTE: Most heating systems run the fan automatically.
Auto Mode Dead Band: (2 – 6) The minimum differential
between heating and cooling setpoints (Dual Setpoint Auto
set to Yes in Display Options).
Disable Auto Mode: Will not display Auto on System Mode
screen and will not permit entering the auto mode even from
Cresnet commands.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 33
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Heat Pump, 1 or 2 Stages, Aux Heat or Dual Fuel (Continued)
SETUP: HUMIDITY SENSORS
SETUP: H-SENSORS
TRIM
INTERNAL: -5
REMOTE 1: 0
REMOTE 2: 0
% RH
45
50
30
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
SETUP: SERVICE/TEST
SETUP: SERVICE/TEST
Heat Call:
Cool Call:
Humidifier Call:
Fan Run Call:
OFF
OFF
OFF
OFF
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
34 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 1 – Floor Warming Only
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter the setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab Reg:
SLAB 1
6
Heat System Type: SLAB 1
Slab Regulation: (1 – 6)
1 = Narrow temperature regulation
6 = Wide temperature regulation
FLOOR WARMING ONLY (W1)
NOTE: Slab mode 1 requires a slab remote sensor
(CHV-RSS).
PressTo Continue
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
NO APPLICABLE SETTINGS
PressTo Continue
No applicable settings.
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
(Continued on the following page)
Y
Y
N
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier output
to prevent condensation on the windows. Requires an outdoor
temperature source (CHV-THSAT, or CHV-TSTAT with
CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to trigger
the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 35
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 1 – Floor Warming Only (Continued)
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
CHV-THSTAT
[v2.0, #D8000000]
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
Y
Y
Y
Y
N
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
This screen displays Model number, Firmware version and
TSID.
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
(Continued on the following page)
F
0
0
Y
HM
Y
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
36 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 1 – Floor Warming Only (Continued)
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
NO APPLICABLE SETTINGS
PressTo Continue
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
No applicable settings.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
when RH is 40% or higher.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 37
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
62
62
62
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
38 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 2 – Single Stage Space Heat with Slab Maximum
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter the setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab MAX T:
SLAB 2
o
122
Heat System Type: SLAB 2
Slab Maximum Temperature:
(39° – 122°F / 39° – 50°C) Used to prevent the floor from
becoming too hot on long heat calls.
1 STG SPACE HEAT BY SLAB
WITH SLAB MAX (W1)
NOTE: Slab mode 2 requires an air temperature source and a
slab remote sensor (CHV-RSS).
PressTo Continue
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
Heat Anticipator:
ADJUSTS HEAT SHUTOFF DYNAMICS
PressTo Continue
5
Heat Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
(Continued on the following page)
Y
Y
N
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier output
to prevent condensation on the windows. Requires an outdoor
temperature source (CHV-THSAT, or CHV-TSTAT with
CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to trigger
the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 39
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 2 – Single Stage Space Heat with Slab Maximum (Continued)
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
CHV-THSTAT
[v2.0, #D8000000]
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
Y
Y
Y
Y
N
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
This screen displays Model number, Firmware version and
TSID.
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
(Continued on the following page)
F
0
0
Y
HM
Y
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
40 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 2 – Single Stage Space Heat with Slab Maximum (Continued)
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
NO APPLICABLE SETTINGS
PressTo Continue
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
No applicable settings.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
when RH is 40% or higher.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 41
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 2 – Single Stage Space Heat with Slab Maximum (Continued)
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
62
62
62
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
42 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 3 – Single Stage Heat with Slab Minimum/Maximum
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab MAX T:
Slab Reg:
1 STG SPACE HEAT BY SLAB
WITH SLAB MIN/MAX (W1)
PressTo Continue
SLAB 3
o
122
6
SETUP: SYSTEM PERFORMANCE
Heat System Type: SLAB 3
Slab Maximum Temperature:
(39° – 122°F / 39° – 50°C) Used to prevent the floor from
becoming too hot on long heat calls.
Slab Regulation: (1 – 6)
1 = Narrow temperature regulation
6 = Wide temperature regulation
NOTE: Slab mode 3 requires an air temperature source and
a slab remote sensor (CHV-RSS).
SETUP: SYSTEM PERF
Heat Anticipator:
ADJUSTS HEAT SHUTOFF DYNAMICS
5
PressTo Continue
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
Y
Y
N
Heat Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier output
to prevent condensation on the windows. Requires an outdoor
temperature source (CHV-THSAT, or CHV-TSTAT with
CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to trigger
PressTo Continue
the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 43
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 3 – Single Stage Heat with Slab Minimum/Maximum (Continued)
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
CHV-THSTAT
[v2.0, #D8000000]
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
Y
Y
Y
Y
N
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
This screen displays Model number, Firmware version and
TSID.
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
(Continued on the following page)
F
0
0
Y
HM
Y
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
44 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 3 – Single Stage Heat with Slab Minimum/Maximum (Continued)
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
NO APPLICABLE SETTINGS
PressTo Continue
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
No applicable settings.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 45
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
when RH is 40% or higher.
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 3 – Single Stage Heat with Slab Minimum/Maximum (Continued)
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
62
62
62
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
46 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 4A – Two Stage Heat/One Stage Cool with Slab Maximum
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab MAX T:
2 STG SPACE HEAT - 1 STG
COOL WITH SLAB MAX (H/C)
SLAB = (W1), HT = W2, CL = Y1
PressTo Continue
SLAB 4A
o
122
Heat System Type: SLAB 4A
Slab Maximum Temperature:
(39° – 122°F / 39° – 50°C) Used to prevent the floor from
becoming too hot on long heat calls.
NOTE: Slab mode 4A requires an air temperature source
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 49
% RH
45
50
30
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
when RH is 40% or higher.
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 4A – Two Stage Heat/One Stage Cool with Slab Maximum (Continued)
Slab Heat Call:
Space Heat Call:
Space Cool Call:
Aux Heat Call
Humidifier Call:
Fan Call:
OFF
OFF
OFF
OFF
OFF
OFF
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
62
62
62
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
50 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 4B – 2 Stage Heat/1 Stage Cool with Slab Maximum (Heat
Pump)
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab MAX T:
HP/AUX or DF:
2 STG SPACE HEAT - 1 STG
COOL WITH SLAB MAX (HP)
SLAB = W1, HT/CL = Y1/O/G
SLAB 4B
122
HP/Aux
o
Heat System Type: SLAB 4B
Slab Maximum Temperature:
(39° – 122°F / 39° – 50°C) Used to prevent the floor from
becoming too hot on long heat calls.
HP/Aux or Dual Fuel: Dual fuel runs either the heat pump
or the aux output, depending on outdoor temperature. The
heat pump with aux can stage the heat when required to
PressTo Continue
improve performance.
• Dual Fuel: A dual fuel system combines an energy-
efficient air-source heat pump with a new or existing oil,
gas or propane furnace. The furnace runs in place of the
heat pump in cold weather.
• Aux (Aux iliary) Heat: When the heat pump can no
longer efficiently transfer heat from the outside air, the
thermostat automatically turns on a secondary heat
source, such as electric resistive heat.
NOTE: Slab mode 4B requires an air temperature source
and a slab remote sensor (CHV-RSS).
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
Heat Anticipator:
Cool Anticipator:
Intrstg Differential:
HP Balance Pt:
AUX Balance Pt:
PressTo Continue
5
6
0.5
Off
1
0
0
Heat & Cool Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
Interstage Differential: (0.5º – 8.0ºF)
The proportional temperature error to trigger the second
stage.
HP Balance Point: (0º – 90ºF or N/A) Minimum outdoor
temperature at which the heat pump runs (requires an
outdoor temperature sensor).
AUX Balance Point: (0º – 90ºF or N/A) Maximum outdoor
temperature at which Aux heat system supplements the heat
pump (requires an outdoor temperature sensor).
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 51
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 4B – 2 Stage Heat/1 Stage Cool with Slab Maximum (Heat Pump) (Continued)
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
Y
Y
N
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier output
to prevent condensation on the windows. Requires an outdoor
temperature source (CHV-THSAT, or CHV-TSTAT with
CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to trigger
the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
CHV-THSTAT
[v2.0, #D8000000]
This screen displays Model number, Firmware version and
TSID.
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
(Continued on the following page)
52 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Y
Y
Y
Y
N
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 4B – 2 Stage Heat/1 Stage Cool with Slab Maximum (Heat Pump) (Continued)
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
F
0
0
Y
HM
Y
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
Wide Range Cool:
Run Fan in Ht Calls:
Auto DdBand Deg:
Disable Auto Mode:
EXTENDED COOL SETPOINT
RANGE 38-99F (3-37C)
PressTo Continue
N
N
0
2
N
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
Wide Range Cool: Extends cool setpoint to full auto range
of 38º – 99ºF (3º – 37ºC).
Run Fan in Heat Calls: If your heating system requires fan
control, select Yes.
NOTE: Most heating systems run the fan automatically.
Auto Mode Dead Band: (2 – 6) The minimum differential
between heating and cooling setpoints (Dual Setpoint Auto
set to Yes in Display Options).
Disable Auto Mode: Will not display Auto on System Mode
screen and will not permit entering the auto mode even from
Cresnet commands.
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
(Continued on the following page)
>TEMP HUM
USE OMIT
SLAB
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 53
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
Slab 4B – 2 Stage Heat/1 Stage Cool with Slab Maximum (Heat Pump) (Continued)
SETUP: HUMIDITY SENSORS
SETUP: H-SENSORS
TRIM
INTERNAL: -5
REMOTE 1: 0
REMOTE 2: 0
% RH
45
50
30
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
SETUP: SERVICE/TEST
SETUP: SERVICE/TEST
Slab Heat Call:
Space Heat Call:
Space Cool Call:
Aux Heat Call
Humidifier Call:
Fan Call:
OFF
OFF
OFF
OFF
OFF
OFF
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
54 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 5A – 1 Stage Heat/Cool with Floor Warming
Press and hold the MODE and VIEW buttons simultaneously for five seconds to enter setup mode.
SETUP: SYSTEM
SETUP: SYSTEM
Heat Sys Type:
Slab Reg:
1 STG SPACE HEAT-COOL
WITH FLOOR WARMING
SLAB (W1) HT=W2 CL=Y1/G
PressTo Continue
SLAB 5A
2
Heat System Type: SLAB 5A
Slab Regulation: (1 – 6)
1 = Narrow temperature regulation
6 = Wide temperature regulation
NOTE: Slab mode 5A requires an air temperature source
and a slab remote sensor (CHV-RSS).
SETUP: SYSTEM PERFORMANCE
SETUP: SYSTEM PERF
Heat Anticipator:
Cool Anticipator:
ADJUSTS HEAT SHUTOFF DYNAMICS
PressTo Continue
5
2
Heat and Cool Anticipator: (1 – 6)
Low number = more frequent cycles, faster response. High
number = less frequent cycles, slower response.
SETUP: HUMIDITY OPTIONS
SETUP: HUM OPTS
Show Hum Mode Pg:
Show Hum View Pg:
Cold Weather Comp:
SYSTEM ENABLE/DISABLE
PAGE
SETUP: HUM OPTS
INVERTED HUM RELAY LOGIC
HUM ABOVE SP = ENERGIZED
Invert Hum Output Y
Call FAN in HUM: N
PressTo Continue
(Continued on the following page)
Y
Y
N
Show Hum Mode Pg and Show Hum View Pg: Select Y to
show humidity page in normal operation.
Cold Weather Compensation: Modifies the humidifier output
to prevent condensation on the windows. Requires an outdoor
temperature source (CHV-THSAT, or CHV-TSTAT with
CHV-RTHS, CHV-RTS, or CHV-RSS).
Invert Hum Output: Reverses the logic controlling the
switching of the HUM relay (NO/NC). May be useful when
using to control a dehumidifier.
NOTE: Most dehumidifier applications require the default
setting.
Call FAN in HUM: Makes a FAN call during HUM calls
instead of having to wait for a heating or cooling call to trigger
the fan.
NOTE: Most dehumidifier applications will automatically
trigger fan operation.
NOTE: This setting is only useful for humidity calls with
normal (non-inverted) logic.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 55
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 5A – 1 Stage Heat/Cool with Floor Warming (Continued)
SETUP: DEVICE OPTIONS
SETUP: DEVICE OPTS
Network ID:
LCD Contrast
2A
5
CHV-THSTAT
[v2.0, #D8000000]
PressTo Continue
SETUP: SCREEN OPTIONS
SETUP: SCRN OPTIONS
Disp Global Page:
Disp Outdoor Page:
Disp Rem Func Pg1:
Disp Rem Func Pg2:
Reverse SMODE Dir
PressTo Continue
Y
Y
Y
Y
N
Network ID: Valid entries are 03 to FE in Hex to match the
network ID set for the thermostat in SIMPL Windows.
LCD Contrast: (1 – 10) Lighter to darker screen.
This screen displays Model number, Firmware version and
TSID.
Select options to be displayed when the VIEW button is
pressed in normal operation:
Global Page: Temperature and humidity selection for entire
house (if part of a Cresnet system).
Outdoor Page: Temperature and humidity selection for the
outside sensor.
Display Remote Function Pg1 and Pg2: Allows remote
control of other functions (e.g. lights, alarms, etc.)
Reverse SMODE Dir: Allows arrow keys to select mode
functions in both directions.
SETUP: DISPLAY OPTIONS
SETUP: DISP OPTIONS
Temperature Units:
Temp Disp Offset:
Dual Setpoint Auto:
Main Scn Lwr Obj:
Use 0.5 Deg C Step:
PressTo Continue
(Continued on the following page)
F
0
0
Y
HM
Y
Temperature Units: Display temperature units in (F)
Fahrenheit or (C) Celsius.
Temp Disp Offset: (-6° – +6°F) Allows the user to adjust
the displayed and regulated temperature.
Dual Setpoint Auto: Enables two-point auto mode.
Main Screen Lower Object:
SB – Slab OD – Outdoor
HM – Humidity NA – None
Use 0.5 DEG C Step: Display in 0.5°C-degree units.
56 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 5A – 1 Stage Heat/Cool with Floor Warming (Continued)
SETUP: OTHER SETTINGS
SETUP: OTHER SETTINGS
Wide Range Cool:
Run Fan in Ht Calls:
Auto DdBand Deg:
Disable Auto Mode:
EXTENDED COOL SETPOINT
RANGE 38-99F (3-37C)
PressTo Continue
N
N
0
2
N
SETUP: SENSORS
SETUP: SENSORS
SENSOR
INTERNAL:
REMOTE 1:
DETECTED: 1 x T
REMOTE 2:
PressTo Continue
>TEMP HUM
USE OMIT
SLAB
Wide Range Cool: Extends cool setpoint to full auto range
of 38º – 99ºF (3º – 37ºC).
Run Fan in Heat Calls: If your heating system requires fan
control, select Yes.
NOTE: Most heating systems run the fan automatically.
Auto Mode Dead Band: (2 – 6) The minimum differential
between heating and cooling setpoints (Dual Setpoint Auto
set to Yes in Display Options).
Disable Auto Mode: Will not display Auto on System Mode
screen and will not permit entering the auto mode even from
Cresnet commands.
INTERNAL: Choose USE or OMIT. Choose USE to
permit temperature averaging.
NOTE: Sensor temperature and humidity can be output to
network even if OMIT is chosen.
REMOTE 1 and 2: Choose USE, OMIT, OD (outdoors),
or SLAB (Remote Sensors Only).
NOTE: REMOTE 1 and REMOTE 2 options do not
appear on this screen if these sensors are not connected.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 57
% RH
45
50
30
TRIM (-9 – +9) Allows the user to calibrate the
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
when RH is 40% or higher.
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 5A – 1 Stage Heat/Cool with Floor Warming (Continued)
Space Heat Call:
Space Cool Call:
Humidifier Call:
Fan Call:
OFF
OFF
OFF
OFF
OFF
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
62
62
62
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
58 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
INTERNAL, REMOTE 1 and REMOTE 2 humidity sensors
to match % RH values obtained by other equipment. The
values here are based on a logarithmic index and are not to
be interpreted as units of measurement.
NOTE: For best results, calibration should be performed
Press VIEW to run or stop sensor debugging. A completion
progress bar indicates debugging status.
IST / AVG F: Displays the instantaneous and average
temperature (F) for RS1, followed by the instantaneous and
average temperature (F) for RS2.
LOW/HI F: Displays the low and high temperature (F) for
RS1 followed by the low and high temperature (F) for RS2.
COMM ER: Displays the number of communication errors
present for RS1, followed by the number of communication
errors present for RS2. Values should be close to 0. If values
are higher than 20, check wiring.
SETUP: SERVICE/TEST
SETUP: SERVICE/TEST
Slab Heat Call:
Space Heat Call:
Space Cool Call:
Aux Heat Call
Humidifier Call:
Fan Call:
OFF
OFF
OFF
OFF
OFF
OFF
Each histogram should display only a single column.
Histogram values should not have much spread.
NOTE: This screen bypasses all system delays and is used
by the installer to manually operate the HVAC system. Only
one system can be run at a time.
Press MODE button to return to the first screen
Or
Press and hold the MODE and VIEW buttons
simultaneously for five seconds to exit Setup.
NOTE: You cannot exit if the sensor setup does not meet
system requirements.
62 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Thermostat Operation
The Main Screen displays the current temperature, system mode, fan mode,
relative humidity and set point temperatures. This screen also indicates the system
type currently running:
H1 – Heat System or Stage 1 Heat System
H2 – Stage 2 Heat System
AX – Auxiliary Heating System
C1 – Cooling System or Stage 1 Cooling System
C2 – Stage 2 Cooling System
SB – Slab heat system
HM– Humidifier
Main Screen
Set Point
Temperature
Current
Te mp er at ur e
System
Mode
MODE
VIEW
o
F
66
%
43
Current
Humidity
System Type
o
F
68
HEATING
HEAT ONLY
ON LINE
H1
FN
Fan Indicator
T
T
Current Function
Communication Status
Press the up ▲arrow button to increase the set point temperature. Press the down
▼arrow button to decrease the set point temperature.
NOTE: The first press of the up▲ and down▼arrow buttons will trigger
backlight.
NOTE: If you selected Yes in setup screen Display Options for “Dual Setpoint
Auto”, pressing MODE toggles between the Heat and Cool setpoints while they are
flashing. Pressing MODE will not change the screen until the setpoint has stopped
flashing.
NOTE: System indicators flash to indicate short cycle timer protection (timer
guards) engaged.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 63
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
View Button Menus
Pressing the VIEW button allows the user to access the following screens:
NOTE: If enabled, the VIEW button also allows access to the remote button function screens. When
part of a Cresnet system, the up ▲ and down ▼ arrow buttons can be used to enable other functions
(i.e., lighting control, alarm system, etc).
VIEW
Humidity Screen
Press the VIEW button to display the “Humidity” screen.
MODE
VIEW
Humidity
30
%
%
24
T
The setpoint adjustment range is 5 – 90%.
T
Use the up▲and down▼arrow buttons to adjust the
Humidity Set Point level.
NOTE: This page only appears if enabled in the “HUM
NOTE: If a CHV-RTHS temperature/humidity sensor is
installed, a CHV-TSTAT can import and display the
humidity.
VIEW
Outdoor Screen
MODE
VIEW
VIEW
Messages Screen
MODE
VIEW
Outdoor
<CLR
Messages
Emergency Gen in Use
32
Press the VIEW button again to display the “Outdoor”
T
o
F
T
screen. This allows the user to view the outdoor
temperature (if an outdoor sensor has been installed) and
outdoor humidity (if available). Outdoor
temperature/humidity can come from an outdoor sensor
wired directly to the thermostat or through the Cresnet
system from another source. This page is only displayed if
enabled in the “SCRN OPTIONS” setup screen.
NOTE: This is only a display and not for system activation.
This display can be shown on either the CHV-TSTAT or
the CHV-THSTAT.
Press the VIEW button again to display the “Messages”
T
screen. This screen allows the user to view any text
messages sent from the control system (only when part of a
T
Cresnet system). Text messages are limited to four lines,
approximately 20 characters per line (including spaces).
Allow for word wrap by staying within the 20
characters/spaces per line maximum. The thermostat autohyphenates when nearing the end of a line. You may use
carriage returns to force a line change.
NOTE: This page is only seen when a message has been
sent to the thermostat.
Press the MODE button to clear (CLR) the message(s).
This acknowledges to the control system that the message
has been read.
64 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Mode Button Menus
Heat/Cool, Heat Pump and Slab 4 Systems
Pressing the MODE button allows the user to access the following screens when the thermostat is
configured for Heat/Cool, Heat Pump and Slab 4 Systems.
MODE
SYSTEM MODE SCREEN
The “System Mode” screen appears when the MODE
T
T
button is initially pressed.
Use the up▲and down▼arrow buttons to select HEAT,
COOL, AUTO, OFF or AUX HEAT ONLY.
NOTE: The AUTO selection allows the system to switch
between Heat and Cool automatically as needed to
maintain the temperature.
NOTE: The AUX HEAT ONLY is for the backup
heating system on Heat Pump based systems only. It
allows the backup system to operate without operating the
heat pump.
MODE
VIEW
System Mode
HEAT COOL AUTO OFF
AUX HEAT ONLY
MODE
FAN MODE SCREEN
MODE
VIEW
MODE
HUMIDIFIER SCREEN
MODE
VIEW
Fan Mode
AUTO ON
Humidifier
ENABLED DISABLED
(Continued on the following page)
Pressing the MODE button again displays the “Fan Mode”
T
screen.
T
Use the up ▲and down▼arrow buttons to select AUTO or
ON.
NOTE: In AUTO, the fan runs only when the system calls
for heat or cool. In ON, the fan runs continuously.
Pressing the MODE button again displays the “Humidifier”
T
screen.
T
NOTE: This page only appears if enabled in the “HUM
OPTS” setup screen.
NOTE: CHV-TSTAT requires additional remote humidity
sensor (CHV-RTHS), sold separately.
Use the up▲and down▼arrow buttons to select
ENABLED or DISABLED.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 65
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Heat/Cool, Heat Pump and Slab 4 System Thermostat Operation (Continued)
MODE
CRESTRON SYSTEM SCREEN
Pressing the MODE button again displays the “Crestron
MODE
VIEW
MODE
MODE
Crestron Sys
ONLINE HOLD
GLOBAL UPDATE SCREEN
Global Update
T
Sys” screen.
T
Use the up▲and down▼arrow buttons to select ONLINE
or HOLD.
• ONLINE: Data flows both ways, to and from the
thermostat, enabling adjustment from a remote location.
• HOLD: Data flows one way, from the thermostat,
blocking system commands to change the temperature and
humidity when you do not want the current settings reset.
Restores to the last command sent when online is reengaged.
Pressing the MODE button again displays the “Global
T
Update” screen.
VIEW
SEND
T
This feature allows a single thermostat location to update
the current temperature settings to all other thermostats on
the system, provided that this function has been defined in
the Crestron program.
Press the down▼ button to send the update.
Pressing the MODE button again returns you to the Main
Screen.
66 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 5 Systems
Pressing the MODE button allows the user to access the following screens when the thermostat is
configured for Slab 5 Systems.
MODE
FLOOR WARMING SCREEN
MODE
VIEW
MODE
MODE
VIEW
MODE
MODE
VIEW
Floor Warming
0
76
0
82
F
F
AIR SYSTEM MODE SCREEN
Air System Mode
HEAT COOL AUTO OFF
SLAB SYSTEM MODE SCREEN
Slab System Mode
HEAT OFF
T
T
The “Floor Warming” screen appears when the MODE
button is initially pressed.
This screen displays current floor warming temperature
and setpoint.
T
T
Pressing the MODE button again displays the “Air
System Mode” screen.
Use the up▲and down▼arrow buttons to select HEAT,
COOL, AUTO, OFF.
NOTE: The AUTO selection allows the system to switch
between HEAT and COOL automatically as needed to
maintain the temperature.
Pressing the MODE button again displays the “Slab
T
System Mode” screen.
T
Use the up▲and down ▼arrow buttons to select HEAT
or OFF.
MODE
FAN MODE SCREEN
Pressing the MODE button again displays the “Fan Mode”
MODE
VIEW
Fan Mode
AUTO ON
T
screen.
T
Use the up▲and down ▼arrow buttons to select AUTO
or ON.
NOTE: In AUTO, the fan runs only when the system calls
for heat or cool. In ON, the fan runs continuously.
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 67
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 5 System Thermostat Operation (Continued)
MODE
HUMIDIFIER SCREEN
Pressing the MODE button again displays the “Humidifier”
MODE
Humidifier
T
screen.
VIEW
MODE
MODE
VIEW
MODE
ENABLED DISABLED
CRESTRON SYSTEM SCREEN
Crestron Sys
ONLINE HOLD
GLOBAL UPDATE SCREEN
T
NOTE: This page only appears if enabled in the “HUM
OPTS” setup screen.
NOTE: CHV-TSTAT requires additional remote humidity
sensor (CHV-RTHS), sold separately.
Use the up▲and down▼arrow buttons to select
ENABLED or DISABLED.
Pressing the MODE button again displays the “Crestron
T
Sys” screen.
T
Use the up▲and down ▼arrow buttons to select ONLINE
or HOLD.
• ONLINE: Data flows both ways, to and from the
thermostat, enabling adjustment from a remote location.
• HOLD: Data flows one way, from the thermostat,
blocking system commands to change the temperature and
humidity when you do not want the current settings reset.
Restores to the last command sent when online is reengaged.
Pressing the MODE button again displays the “Global
MODE
VIEW
Global Update
SEND
T
Update” screen.
T
Allows a single thermostat location to update the current
temperature settings to all other thermostats on the system,
provided that this function has been defined in the Crestron
program.
Press the down▼ button to send the update.
Pressing the MODE button again returns you to the Main
Screen.
68 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 1 and Slab 2 Systems
Pressing the MODE button allows the user to access the following screens when the thermostat is
configured for Slab 1 and Slab 2 systems.
MODE
SLAB SYSTEM MODE SCREEN
The “Slab System Mode” screen appears when the MODE
MODE
Slab System Mode
T
button is initially pressed.
VIEW
MODE
FAN MODE SCREEN
MODE
VIEW
MODE
HUMIDIFIER SCREEN
MODE
VIEW
HEAT OFF
Fan Mode
AUTO ON
Humidifier
ENABLED DISABLED
T
Use the up ▲and down▼arrow buttons to select HEAT or
OFF.
Pressing the MODE button again displays the “Fan Mode”
T
screen.
T
Use the up▲and down ▼arrow buttons to select AUTO
or ON.
NOTE: In AUTO, the fan runs only when the system calls
for heat or cool. In ON, the fan runs continuously.
Pressing the MODE button again displays the “Humidifier”
T
screen.
T
NOTE: This page only appears if enabled in the “HUM
OPTS” setup screen.
NOTE: CHV-TSTAT requires additional remote humidity
sensor (CHV-RTHS), sold separately.
Use the up▲and down▼arrow buttons to select
ENABLED or DISABLED.
MODE
CRESTRON SYSTEM SCREEN
Pressing the MODE button again displays the “Crestron
MODE
VIEW
Crestron Sys
ONLINE HOLD
T
Sys” screen.
T
Use the up▲and down ▼arrow buttons to select ONLINE
or HOLD.
• ONLINE: Data flows both ways, to and from the
thermostat, enabling adjustment from a remote location.
• HOLD: Data flows one way, from the thermostat,
blocking system commands to change the temperature and
humidity when you do not want the current settings reset.
Restores to the last command sent when online is reengaged.
(Continued on the following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 69
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Slab 1 and Slab 2 System Thermostat Operation (Continued)
MODE
GLOBAL UPDATE SCREEN
Pressing the MODE button again displays the “Global
MODE
Global Update
T
Update” screen.
VIEW
SEND
T
This feature allows a single thermostat location to update
the current temperature settings to all other thermostats on
the system, provided that this function has been defined in
the Crestron program.
Press the down▼ button to send the update.
Pressing the MODE button again returns you to the Main
Screen.
Slab 4 Systems
Pressing the MODE button allows the user to access the following screens when the thermostat is
configured for Slab 4 systems.
MODE
FLOOR WARMING SCREEN
MODE
VIEW
MODE
MODE
Floor Warming
0
F
76
82
SYSTEM MODE SCREEN
System Mode
T
0
F
T
T
The “Floor Warming” screen appears when the MODE
button is initially pressed.
This screen displays current floor warming temperature
and setpoint.
Pressing the MODE button again displays the “System
Mode” screen.
VIEW
HEAT OFF
T
Use the up▲and down ▼arrow buttons to select HEAT
or OFF.
MODE
FAN MODE SCREEN
Pressing the MODE button again displays the “Fan Mode”
MODE
VIEW
Fan Mode
AUTO ON
T
screen.
T
Use the up▲and down ▼arrow buttons to select AUTO
or ON.
NOTE: In AUTO, the fan runs only when the system calls
for heat or cool. In ON, the fan runs continuously.
(Continued on the following page)
70 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Slab 3 System Thermostat Operation (Continued)
MODE
HUMIDIFIER SCREEN
Pressing the MODE button again displays the “Humidifier”
MODE
Humidifier
T
screen.
VIEW
MODE
MODE
VIEW
MODE
ENABLED DISABLED
CRESTRON SYSTEM SCREEN
Crestron Sys
ONLINE HOLD
GLOBAL UPDATE SCREEN
T
NOTE: This page only appears if enabled in the “HUM
OPTS” setup screen.
NOTE: CHV-TSTAT requires additional remote humidity
sensor (CHV-RTHS), sold separately.
Use the up▲and down▼arrow buttons to select
ENABLED or DISABLED.
Pressing the MODE button again displays the “Crestron
T
Sys” screen.
T
Use the up▲and down ▼arrow buttons to select ONLINE
or HOLD.
• ONLINE: Data flows both ways, to and from the
thermostat, enabling adjustment from a remote location.
• HOLD: Data flows one way, from the thermostat,
blocking system commands to change the temperature and
humidity when you do not want the current settings reset.
Restores to the last command sent when online is reengaged.
Pressing the MODE button again displays the “Global
MODE
VIEW
Global Update
SEND
T
Update” screen.
T
Allows a single thermostat location to update the current
temperature settings to all other thermostats on the system,
provided that this function has been defined in the Crestron
program.
Press the down▼ button to send the update.
Pressing the MODE button again returns you to the Main
Screen.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 71
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Programming Software
Have a question or comment about Crestron software?
Answers to frequently asked questions (FAQs) can be viewed in the Online Help
section of the Crestron website. To post a question or view questions you have
submitted to Crestron’s True Blue Support, log in at
First-time users will need to establish a user account.
Earliest Version Software Requirements for the PC
NOTE: Crestron recommends that you use the latest software to take advantage of
the most recently released features. The latest software is available from the Crestron
website.
Crestron has developed an assortment of Windows®-based software tools to develop
a Cresnet system. For the minimum recommended software versions, visit the
Version Tracker page of the Crestron website (
www.crestron.com/support.
www.crestron.com/versiontracker).
Programming with Crestron SystemBuilder
Crestron SystemBuilder™ is the easiest method of programming but does not offer
as much flexibility as SIMPL Windows. For additional details, download
SystemBuilder from the Crestron website and examine the extensive help file.
Any program created for a CHV-TSTAT/CHV-THSTAT with SystemBuilder will
include the out-of-the-box functionality in addition to any additional programming
created with SystemBuilder.
Programming with D3 Pro
Crestron’s D3 Pro® lighting software provides all the tools necessary to create a
complete Crestron lighting system for residential applications. The lighting system
includes the control system logic program, touchpanel projects and keypad
programming, documentation and real-time lighting adjustment capabilities.
As with all Crestron software, D3 Pro provides extensive right-click and drag-anddrop functionality in addition to convenient keyboard shortcuts for frequently used
functions and commands.
Programming is organized into six system Views of the lighting system, each
providing a moveable toolbox of devices such as interfaces, fixtures and control
modules. You can add a device to your system simply by selecting it from one of the
toolboxes and dragging it to a room. The available toolboxes differ depending on the
View but all Views include a "General" toolbox that allows you to add areas and
rooms at any time.
72 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Programming with SIMPL Windows
NOTE: While SIMPL Windows can be used to program the CHV-TSTAT and
CHV-THSTAT, it is recommended to use SystemBuilder for configuring a system.
SIMPL Windows is Crestron’s premier software for programming Crestron control
systems. It is organized into two separate but equally important “Managers”.
NOTE: When programming a CHV-TSTAT/CHV-THSTAT in SIMPL Windows,
always begin with the example program and modify as required. To find example
programs, refer to “Example Program” on page 74. Also visit Crestron’s True Blue
Support on the web for more programming tips.
Configuration Manager
Configuration Manager is the view where programmers “build” a Crestron control
system by selecting hardware from the Device Library.
In the example shown below, a CHV-TSTAT/CHV-THSTAT is being used with a
PRO2 control system.
1. To incorporate the CHV-TSTAT/CHV-THSTAT into the system, drag the
CHV-TSTAT/CHV-THSTAT from the Cresnet Control Modules | Crestron
Sensing Modules folder of the Device Library and drop it in the System Views.
NOTE: It is not recommended to add the CHV-TSTAT/CHV-THSTAT
directly. Instead, add one of the available “modules” listed underneath it as
shown below.
Locating the CHV-TSTAT/CHV-THSTAT in the Device Library
2. The system tree of the control system displays the device in the appropriate
slot with a default Net ID of 2A as shown in the following illustration.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 73
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
C2Net Device, Slot 8
3. Additional CHV-TSTAT/CHV-THSTAT devices are assigned different Net
ID numbers as they are added.
4. If necessary, double click a device to open the “Device Settings” window
and change the Net ID, as shown in the following figure.
5. The ID code specified in the SIMPL Windows program must match the Net
ID of each unit. Refer to “Identity Code” on page 9.
Program Manager is the view where programmers “program” a Crestron control
system by assigning signals to symbols.
The symbol can be viewed by double clicking on the icon or dragging it into Detail View. Each signal in the symbol is described in the SIMPL Windows help file (
F1).
Example Program
An example program for the CHV-TSTAT/CHV-THSTAT is available from the
Crestron website (
www.crestron.com/exampleprograms).
74 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
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 (and/or device).
Finally, program checks can be performed (such as changing the device ID or
creating an IP table) to ensure proper functioning.
Establishing Communication
Use Crestron Toolbox for communicating with the CHV-TSTAT/CHV-THSTAT;
refer to the Crestron Toolbox help file for details. There is a single method of
communication: indirect serial communication..
Indirect Communication
PC Running
Crestron Toolbox
CHV-TSTAT/CHV-THSTAT connects to control system via Cresnet:
1. Establish communication between the PC and the control system as
described in the latest version of the 2-Series Control Systems Reference
Guide (Doc. 6256).
2. Use the Address Book in Crestron Toolbox to create an entry for the
CHV-TSTAT/CHV-THSTAT using the expected communication protocol
(indirect). Select the Cresnet ID of the CHV-TSTAT/CHV-THSTAT and
the address book entry of the control system that is connected to the
CHV-TSTAT/CHV-THSTAT.
3. Display the CHV-TSTAT/CHV-THSTAT’s “System Info” window (click
the
is displayed.
Serial,
Ethernet
or USB
icon); communications are confirmed when the device information
Control System
Cresnet
CHV-TSTAT/
CHV-THSTAT
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 75
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
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 website 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 SIMPL Windows help
file or the Crestron Toolbox help file.
SIMPL Windows
Firmware
If a SIMPL Windows program is provided, it can be uploaded to the control system
using SIMPL Windows or Crestron Toolbox.
Check the Crestron website to find the latest firmware. (New users may be required
to register to obtain access to certain areas of the site, including the FTP site.)
Upgrade CHV-TSTAT/CHV-THSTAT firmware via Crestron Toolbox.
1. Establish communication with the CHV-TSTAT/CHV-THSTAT and
display the “System Info” window.
2. Select Functions | Firmware… to upgrade the CHV-TSTAT/
CHV-THSTAT firmware.
NOTE: Firmware version 2.40 is not compatible with SIMPL Windows programs
that have used firmware version 1.1 and earlier.
Program Checks
Using Crestron Toolbox, display the network device tree (Tools | Network Device
Tree) to show all network devices connected to the control system. Right-click on
the CHV-TSTAT/CHV-THSTAT to display actions that can be performed on the
CHV-TSTAT/CHV-THSTAT.
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Problem Solving
Control System Error Log Message Formats
When a remote sensor that has been designated as USE, SLAB, or OD in the Setup
Sensors screen (refer to “Thermostat Setup”, which begins on page 24) generates an
error, a message is sent to the error log. Retrieve this message using the System Info
tool in Crestron Toolbox:
1. Using Crestron Toolbox, select Tools|System Info.
2. Select the control system from the address bar and examine the Error Log.
channel is the sensor channel string
designator is the sensor setup designation
CHA errors/CHB errors are the number of errors on each sub-channel
cycle count is the number of read cycles that have occurred.
NOTE: Both sub-channels have their error count reported, regardless of the sensors
connected.
This message is sent upon the first error detected on the channel, as well as every
100 errors detected thereafter. When only one sensor is connected to a remote
interface, its values assume the <CHA> position. The values for the <CHB> position
are not used. When two sensors are connected to a remote interface, the <CHA>
position indicates the errors for the first sensor, and the <CHB> position indicates
the errors for the second sensor.
The following is an example output, as seen in Crestron Toolbox, when a single
outdoor sensor connected to RS1 accumulates 101 read failures:
Error: Message from device Slot-09.ID-2A: Sensor R1T
type OD: 101,3922 Errors @ 3922 (0056:0000:0056)
The following is an example output, as seen in Crestron Toolbox, when two air space
sensors are connected to RS1 and the first sensor encountered a read failure:
Error: Message from device Slot-09.ID-2A: Sensor R1T
type USE: 1,0 Errors
@ 5943 (0056:0000:0056)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 77
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Local Error Messages
When a critical sensor fails and prevents the safe or intended operation of the HVAC
equipment, an error message flashes on the main screen.
This error message appears as a text message under the line that normally reads ON LINE and VIEW MSG. The thermostat messages are shown as follows in
descending priority.
ERROR DESCRIPTION
ERR! NO AT SRC
ERR! NO SB SRC
ERR! NO HM SRC
ERR! NO OD SRC
Indicates that no air temperature source is present,
because all available sensors designated USE have
generated errors during the current read cycle. HVAC
operation is suspended and relays are cleared, except on
SLAB1 type. SLAB1 type cannot generate this error
because it does not have an air temperature USE type.
Indicates that no slab temperature source is present,
because all available sensors designated SLAB have
generated errors during the current read cycle. HVAC
operation is suspended on all slab modes (1, 2, 3, 4A,
4B, 5A, 5B).
Indicates that no humidity sources are present, because
all available sensors designated USE have generated
errors during the current read cycle. Humidifier operation
is suspended and HUM relay is cleared.
Indicates that no outdoor source is present and the setup
says at least one remote is supposed to be providing OD
data (designated OD). This error does not disable HVAC
operation because it is not absolutely essential. All
heatpump modes that use outdoor temperature for
balance point operation will eventually stage or switch to
auxiliary heat and thus prevent the space from freezing.
NOTE: All of these conditions are self-healing if the sensor begins sending valid
data.
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Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Troubleshooting
The table below provides corrective action for possible trouble situations. If further
assistance is required, please contact a Crestron customer service representative.
CHV-TSTAT/CHV-THSTAT Troubleshooting
TROUBLE POSSIBLE
CAUSE(S)
No display
Heating/Cooling
system not
operating
Cannot change
temperature setting
System cycles too
quickly
High temperature
variance
No power from
system
Incorrect mounting to
backplate
No power to
thermostat
Flashing system
indicator - Short cycle
timer not satisfied
The upper or lower
temperature limits
were reached
Anticipator/Regulation
setting too low
Anticipator/Regulation
setting too high
CORRECTIVE ACTION
Check for +24V on pins 24(C)
and 24(R)
Check circuit breaker
powering furnace or boiler
Check P4 jumper on
thermostat board
Check thermostat wiring
Check thermostat mounting
Check circuit breaker
Check 24V connection at
thermostat and at furnace/air
conditioner
Check circuit breaker
powering furnace or boiler
Recheck wiring connections
Timer Guards are a safety
feature that prevents rapid
switching between different
cycles
H1, H2, C1, C2, SB, HM, and
AX flash when the threeminute timer guards have not
been satisfied
Wait five minutes and/or
consult HVAC contractor
Setpoint heat range is
38 – 90º F (3-38º C)
Setpoint cool range is
59-100º F (15 – 38º C)
Reprogram
anticipator/regulator setting
Refer to “Thermostat Setup”,
on page 24
(Continued on following page)
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 79
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
CHV-TSTAT/CHV-THSTAT Troubleshooting (Continued)
TROUBLE POSSIBLE
CAUSE(S)
Wide temperature
variance in singlesetpoint auto mode
Heating/Cooling not
operating in singlesetpoint auto mode
Displays Error
Message and
equipment not
operating
Wrong temperature
displayed
Displays “NetDown”
Cannot leave setup
Cannot enter Auto
mode
Cresnet Balance
Point values out of
range
Temperature offset
value not affecting
Cresnet outputs
Cannot change
screens or setpoints
Auto deadband
setting too high
20-minute system
toggling lockout
Temperature
sensors are
disabled or have
failed
Bad
communications
Wrong units Select F or C as necessary
Incorrect sensor
setup
Temperature
Offset
Bad location
No Crestron
program or the
program does not
have a device at
this net address
included in this
system
Sensor
configuration not
valid
Auto mode
disabled in setup
Values of -1°,
91°F
represent "Off"
settings
Offset is only
added to
"RegulationTemp"
Local operation
locked out
CORRECTIVE ACTION
Adjust auto deadband setting in
setup
Adjust auto deadband and
anticipator settings for smoother
operation
Refer to “Local Error Messages”
on page 77
Check wiring – Use low
capacitance twisted-pair wiring
Check sensor setup
Reset Temperature Offset
Ensure that thermostat is located
out of direct sunlight, drafts,
doorways, skylights, and
windows
Check ID in program
Fix program, if one is needed
Ensure sensor setup meets
system requirements.
Refer to Sensor Setup screen
Select “N” for the Disable Auto
Mode item on the “Other
Settings” setup page
Verify intended balance point
settings
Add offset in SIMPL program
Remove lockout from network
80 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Check Network Wiring
Use the Right Wire
Calculate Power
In order to ensure optimum performance over the full range of your installation
topology, Crestron Certified Wire and only Crestron Certified Wire may be used.
Failure to do so may incur additional charges if support is required to identify
performance deficiencies because of using improper wire.
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to
do so could cause equipment damage or void the Crestron warranty.
CAUTION: Provide sufficient power to the system. Insufficient power can lead to
unpredictable results or damage to the equipment. Please use the Crestron Power
Calculator to help calculate how much power is needed for the system
(
www.crestron.com/calculators).
When calculating the length of wire for a particular Cresnet run, the wire gauge and
the Cresnet power usage of each network unit to be connected must be taken into
consideration. Use Crestron Certified Wire only. If Cresnet units are to be daisychained on the run, the Cresnet power usage of each network unit to be daisychained must be added together to determine the Cresnet power usage of the entire
chain. If the unit is home-run from a Crestron system power supply network port, the
Cresnet power usage of that unit is the Cresnet power usage of the entire run. The
wire gauge and the Cresnet power usage of the run should be used in the following
equation to calculate the cable length value on the equation’s left side.
Cable Length Equation
Strip and Tin Wire
Add Hubs
L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 MM ))
or 1.6 Ohms (Cresnet HP: 12 AWG (4 MM ))
P = Cresnet power usage of entire run (or chain)
2
2
L <
40,000
Where:
R x P
Make sure the cable length value is less than the value calculated on the right side of
the equation. For example, a Cresnet run using 18 AWG Crestron Certified Wire and
drawing 20 watts should not have a length of run more than 333 feet (101 meters). If
Cresnet HP is used for the same run, its length could extend to 1250 feet (381
meters).
NOTE: All Crestron certified Cresnet wiring must consist of two twisted pairs. One
twisted pair is the +24V conductor and the GND conductor and the other twisted
pair is the Y conductor and the Z conductor.
When daisy-chaining Cresnet units, strip the ends of the wires carefully to avoid
nicking the conductors. Twist together the ends of the wires that share a pin on the
network connector and tin the twisted connection. Apply solder only to the ends of
the twisted wires. Avoid tinning too far up the wires or the end becomes brittle.
Insert the tinned connection into the Cresnet connector and tighten the retaining
screw. Repeat the procedure for the other three conductors.
Use of a Cresnet Hub/Repeater (CNXHUB) is advised whenever the number of
Cresnet devices on a network exceeds 20 or when the combined total length of
Cresnet cable exceeds 3000 feet (914 meters).
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 81
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Reference Documents
The latest version of all documents mentioned within the guide can be obtained from
the Crestron website (
product manuals arranged in alphabetical order by model number.
List of Related Reference Documents
2-Series Control Systems Reference Guide
www.crestron.com/manuals). This link will provide a list of
DOCUMENT TITLE
Further Inquiries
If you cannot locate specific information or have questions after reviewing this
guide, please take advantage of Crestron's award winning customer service team by
calling Crestron at 1-888-CRESTRON [1-888-273-7876].
You can also log onto the online help section of the Crestron website
www.crestron.com/onlinehelp) to ask questions about Crestron products. First-time
(
users will need to 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-TSTAT/CHV-THSTAT, 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 website periodically for manual update availability and its
relevance. Updates are identified as an “Addendum” in the Download column.
82 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
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Appendix A: Glossary
Anticipators – Used to anticipate the drop or rise in temperature and energize the
appropriate system before reaching the set point.
Auto Dead Band Degree (Auto DdBand Deg) – Sets the minimum separation in
auto mode between the heat and cool setpoints, or the changeover band in
1-point auto mode.
Balance Point – The lowest outdoor temperature at which the refrigeration cycle of
a heat pump will supply the heating requirements without the aid of a
supplementary heat source.
Blower (Fan) – An air-handling device for moving air in a distribution system.
BTU - British Thermal Unit – In scientific terms, it represents the amount of
energy required to raise one pound of water one degree Fahrenheit. One
BTU is the equivalent of the heat given off by a single wooden kitchen
match.
Call – A call is when the thermostat requests the heating or cooling system to turn
on.
Damper – Found in ductwork, this movable plate opens and closes to control
airflow. Dampers are used effectively in zoning to regulate airflow to
certain rooms.
Dead Band – The minimal differential between Heating and Cooling.
Dual Fuel – A heat pump used in conjunction with an existing furnace.
Dual Setpoint Auto – Enables the two-point auto mode.
Emergency Heat (Supplementary Electric Heat) – The auxiliary (AUX) or
emergency heat provided at temperatures below a heat pump's balance
point. It is usually electrical resistance heat.
Forced Air – A type of heating system that uses a blower motor to move air through
the furnace and into the ductwork.
Furnace – Equipment used to convert heating energy, such as fuel, oil, gas or
electricity, to usable heat. It usually contains a heat exchanger, a blower and
the controls to operate the system.
Heat Exchanger – A device for the transfer of heat energy from the source to the
conveying medium of air or water. Most common combinations are:
Refrigerant to air or Refrigerant to water (DX), Water to air (hydronic),
Steam to air, Steam to water.
Heat Pump – A unit that both cools and heats. A heat pump system can be either a
split system or a packaged system. A heat pump can be used in conjunction
with a gas/oil/LP furnace (using the furnace instead of electric resistance
heat when temperatures fall below about 35º 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 (dewpoint). Moisture will condense on surfaces that are below
this dewpoint.
HVAC – Heating, ventilation and air conditioning.
Interstage Differential – The proportional temperature error (0.5 to 3.0º) to trigger
the second stage (2-stage only).
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 83
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
Main Screen Lower Object (Main Screen Lwr Obj) – Selects the data item
displayed at the bottom of the main screen. Choice of: none, slab
temperature, outdoor temperature, or indoor humidity.
Run Fan in Heat Calls (Run Fan in Ht Calls) –A device setting that activates the
fan output with W1/W2 heat calls. Does not enable operation on slab
systems on the slab (W1) call.
Setpoint – The thermostat temperature or humidity adjustment setting.
Time Delay (Timer Guards) – Refers to a safety device or circuit that will not allow
restart for three minutes.
Two Stage Heating –The heating unit starts out running in its first stage, and
operates at a fraction of its capacity. When the temperature outside goes
very low, the system adjusts to full capacity (second stage) to meet the
demand.
Wide Range Cool – Extends the cool setpoint range to the full auto range of 38° to
99°F.
84 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
Crestron CHV-TSTAT and CHV-THSTAT Thermostats
Appendix B: About Heat Pumps
A heat pump extracts available heat from one area and transfers it to another. Even
cold air contains some heat, and heat pumps can extract heat from the outside air on
a cold day and transfer it indoors to maintain a comfortable temperature. A heat
pump also works in reverse during the summer, extracting heat from indoors and
transferring it outdoors.
In the heating mode, the efficiency of a heat pump decreases as the outdoor air
temperature decreases.
Heat Pump Operation
Heat flows naturally from a warm area to a cooler area, and the heat pump takes
advantage of this principle. The heat pump essentially consists of a compressor, an
inside coil and fan, and an outside coil and fan. A refrigerant flows inside the coils,
under pressure applied by the compressor.
The refrigerant boils at a very low temperature (as low as -15° F) and becomes a
vapor, just as water becomes a vapor (steam) when boiled. This vapor is sucked into
the compressor where it becomes a high pressure, high temperature vapor.
When heating, the refrigerant is then forced through a coil within part of the heat
pump located indoors. A fan blows cool air over the coil, the vapor cools, turns back
to a liquid, releasing heat that is blown through a duct system to heat the house.
The cycle begins again as the cooled liquid refrigerant is pumped back outside after
releasing it’s heat. On the way, it passes through an expansion valve, lowering the
refrigerant's pressure and temperature again so it can boil more easily in the outdoor
coil.
In its cooling mode the heat pump system works in reverse, extracting available heat
from indoors and transferring it outside.
Heat pumps are most economical when they can be used year-round for both winter
heating and summer cooling.
The efficiency of a heat pump varies significantly with the outdoor temperature.
While a heat pump may be twice as efficient as a conventional heating system at
50°F. When the outdoor temperature drops to less than 30°F, the heat pump must be
supplemented with an auxiliary heating system such as electric resistance. At
temperatures of 15°F or less the heat pump may shut off and the backup heating
system takes over. This is the heat pump balance point. In a dual-fuel system, the
heat pump is supplemented with a standard furnace, which takes over when it
becomes more efficient than the heat pump at very low temperatures.
Operations and Installation Guide – DOC. 8163D Thermostats: CHV-TSTAT and CHV-THSTAT • 85
Thermostats Crestron CHV-TSTAT and CHV-THSTAT
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; touchscreen 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.
Trademark Information
All brand names, product names and trademarks are the sole property of their respective owners. Windows
is a registered trademark of Microsoft Corporation. Windows 95/98/Me/XP/Vista/7 and Windows NT/2000
are trademarks of Microsoft Corporation.
86 • Thermostats: CHV-TSTAT and CHV-THSTAT Operations and Installation Guide – DOC. 8163D
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