Crestron DIN-1TSTAT8 User manual

DIN-1TSTAT8
8-Zone Radiant Heat Thermostat, DIN Rail
Mount
Product Manual
Crestron Electronics, Inc.

The original language version of this document is U.S. English.
All other languages are a translation of the original document.
Regulatory Model: DIN-1TSTAT8
Crestron product development software is licensed to Crestron dealers and Crestron Service Providers (CSPs) under a
limited nonexclusive, nontransferable Software Development Tools License Agreement. Crestron product operating
system software is licensed to Crestron dealers, CSPs, and end-users under a separate End-User License Agreement.
Both of these Agreements can be found on the Crestron website at www.crestron.com/legal/software_license_
agreement.
The product warranty can be found at www.crestron.com/warranty.
The specific patents that cover Crestron products are listed online at www.crestron.com/legal/patents.
Certain Crestron products contain open source software. For specific information, please visit
www.crestron.com/opensource.
Crestron, the Crestron logo, and Cresnet are either trademarks or registered trademarks of Crestron Electronics, Inc. in
the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in
this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any
proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or
photography.
©2022 Crestron Electronics, Inc.

Contents
Overview 5
Specifications 6
Dimension Drawings 9
Installation 10
Install the DIN-1TSTAT8 11
Mount the DIN-1TSTAT8 to the DIN rail 11
Remove the DIN-1TSTAT8 from the DINrail 11
Wire the DIN-1TSTAT8 12
Zone Valve and Main Valve connections (1-8, MAIN) 13
Temperature Sensor Connections (TEMP SENSE) 14
Cresnet Connections (NET) 14
Verify System Operation 15
Operation 16
Bootup 16
Main Valve Delay 16
1-8 Buttons and LEDs 16
MAIN Button and LED 16
Temperature Sensors 16
Failsafe Mode 17
Troubleshooting 18
Resources 19
Crestron Support and Training 19
Programmer and Developer Resources 19
Product Certificates 19
Product Manual — Doc. 9368A Contents • iii

iv • Contents Product Manual — Doc. 9368A

Product Manual — Doc. 9368A DIN-1TSTAT8 • 5
Overview
The DIN-1TSTAT8 is an 8-zone thermostat designed for use with radiant heating systems.
Customized control and scheduling is also possible. The use of remote temperature sensors
eliminates the need for a separate thermostat on the wall in each zone.
The DIN-1TSTAT8 is for heat-only applications using radiators or radiant floor heating. It
controls the heating valve for each zone via eight SPDT relay control outputs (one per zone). A
ninth main valve control output is also provided. Each relay includes normally open and normally
closed contacts, and is rated for 1/2HP at 240VAC, 50/60Hz.
A Crestron® control system connection allows temperature adjustments on each zone from
virtually anywhere by using a Crestron touch screen,handheld remote,mobile app, or computer.
The DIN-1TSTAT8 requires a Crestron control system to function. The heating setpoints for each
zone are set by the user through the control system and then stored in memory on the DIN-
1TSTAT8. In the event a user setpoint is lost, a failsafe operating mode takes over to keep the
space heated at a preset temperature until the user setpoint is restored from the control
system.
NOTE: A complete system requires custom commissioning by a Crestron authorized installer
and programmer. Contact your Crestronrepresentative for more information

6 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Specifications
Contact Rating
1/2HP @ 240VAC, 50/60Hz per zone/channel;
Provides eight SPDT heat zone valve control outputs and one SPDT main valve control output
Temperature Sensing
Measurement Range 0° to 43°C (32° to 110°F)
Temperature Tolerance ±0.5°C (±1°F) over full range;
+0.1°/-0.4°C (±1°F) at room temperature
Setpoint Range (Heat
Only)
3° to 32°C (38° to 90°F)
Temperature Offset ±3°C (±6°F); in steps of 0.1° per temperature sensor input
Failsafe Setpoint 20°C (68°F) factory default setting, user-adjustable from 5° to 20°C (41° to
68°F); the failsafe setpoint is used at install time prior to connection of a
control system, and during runtime if the normal setpoint stored in memory
gets corrupted; reverts to the normal setpoint once a value is received from the
control system
Main Valve Delay 5 minutes factory setting, adjustable from 0 to 5 minutes
Communications
Cresnet® Cresnet secondary mode
Connections
1 - 8 (8 sets of 3) Captive screw terminals;
Comprises (8) zone valve control outputs with isolated common (C), normally
closed (NC), and normally open (NO) terminals;
Each output provides one SPDT relay rated 1/2HP@240VAC, 50/60Hz
MAIN (3) Captive screw terminals;
Main valve control output with isolated common (C), normally closed (NC), and
normally open (NO) terminals;
Provides one SPDT relay rated 1/2HP@240VAC, 50/60Hz
NET (2) 4-pin detachable terminal blocks;
Cresnet secondary port with hardwire parallel pass-through

Product Manual — Doc. 9368A DIN-1TSTAT8 • 7
TEMPSENSE
1–8
(8) 2-pin detachable terminal blocks;
Temperature sensor inputs for zones 1-8;
Each input accepts one sensor, model CHVI-RTS-1G-SM-W,CHVI-RTS-1G-N-W,
CHV-RTS, or CHV-RSS (sold separately);
Requires a dedicated low-capacitance twisted pair wire per zone (<7 nF per
run);
Supports wire lengths of 76m (250ft) using CAT3 or 152m (500ft) using
CAT5;
Thermostat wire is not recommended, but may be used if necessary at lengths
up to 30m (100ft);
Controls and Indicators
1 – 8 (8) Red LEDs and (8) pushbuttons, each button toggles the corresponding zone
output on and off (press and hold 10 seconds for test call), each LED indicates
the corresponding zone output is on (flashes with heat call, steady without heat
call)
MAIN (1) Red LED and (1) pushbutton, button toggles the main output on and off
when held 10 seconds, LED indicates the main output is on (flashes with heat
call, steady without heat call)
SETUP (1) Recessed pushbutton and (1) red LED for Cresnet TSID (touch-settable ID)
PWR (1) Green LED, indicates device is powered via Cresnet
NET (1) Yellow LED, indicates Cresnet communication with the control system
RESET (1) Recessed pushbutton for hardware reset
Power
Cresnet Power Usage 6W (250mA @ 24VDC)
Power Consumption <6W
Environmental
Temperature -18° to 43°C (0° to 110°F)
Humidity 10% to 90% RH (noncondensing)
Heat Dissipation 20BTU/hr maximum
For indoor use only
Construction
Housing Light gray polycarbonate housing with polycarbonate label overlay, UL94 V-0
rated
Mounting 35mm DINEN60715 rail mount, DIN43880 form factor for enclosures with
45mm front panel cutout, occupies 9DIN module spaces (162mm)
Dimensions
Height 94 mm (3.68 in.)
Width 161 mm (6.33 in.)
Depth 60 mm (2.34 in.)

8 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Weight
0.5kg (1.08lb)
Compliance
Regulatory Model: DIN-1TSTAT8
CE, IC, FCC Part 15 Class B digital device
To search for product certificates, refer to support.crestron.com/app/certificates.

Product Manual — Doc. 9368A DIN-1TSTAT8 • 9
Dimension Drawings

10 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Installation
This section provides the following information:
•Install the DIN-1TSTAT8
•Wire the DIN-1TSTAT8
•Verify System Operation

Product Manual — Doc. 9368A DIN-1TSTAT8 • 11
Install the DIN-1TSTAT8
NOTE: Observe the following points when installing the DIN-1TSTAT8.
lUse the DIN-1TSTAT8 in an electrical panel with DIN rail mounting provisions.
lMount the DIN-1TSTAT8 in a well-ventilated area.
lDo not block venting holes.
lCertain third-party DIN cabinets provide space for an informational label between
each DIN rail row. Crestron’s Engraver software (version 4.0 or later) can generate
appropriate labels for all Crestron DIN rail products.
Mount the DIN-1TSTAT8 to the DIN rail
1. Hang the DIN-1TSTAT8 on the top of the DINrail.
2. Press the bottom toward the DINrail and snap it into place.
Remove the DIN-1TSTAT8 from the DINrail
1. Turn off power to the thermostat and the heating system.
2. Remove all connections from the DIN-1TSTAT8.
3. Use a small, flat-head screwdriver to pull the DIN rail release tab down.
4. Tilt the bottom of the DIN-1TSTAT8 away from the bottom of the DIN rail and then
remove the thermostat.

12 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Wire the DIN-1TSTAT8
Make the following connections to the thermostat.

Product Manual — Doc. 9368A DIN-1TSTAT8 • 13
Zone Valve and Main Valve connections (1-8, MAIN)
1. Wire the eight zone valves to the 1-8 terminals on the thermostat. Connect one zone valve
per heat zone. Each zone valve must have a corresponding temperature sensor connected.
2. Wire the main control valve to the MAINterminal on the thermostat. Do not connect a
zone valve to the MAINport.
lFor 2-wire, normally open valves, connect the NO terminal on the thermostat to the
OPEN terminal on the valve.
lFor 3-wire valves, connect the NO terminal on the thermostat to the OPEN terminal
on the valve and then connect the NC terminal on the thermostat to the CLOSE
terminal on the valve.
For zone valve specifications and wiring, refer to the documentation provided by the valve
manufacturer.

14 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Temperature Sensor Connections (TEMP SENSE)
Wire the eight temperature sensors to the TEMP SENSE terminals. Connecting a temperature
sensor input enables the use of the corresponding zone valve. Connect one temperature sensor
per heat zone. Crestron recommends using CAT3 (up to 76m (250ft)) or CAT5 (up to 152m
(500ft)) network cable. If other wire is used, the total capacitance must be less than 7,000 pF
(up to 152m (500ft)).
NOTES:
lWhen wiring the temperature sensors:
oUse a separate run of wire for each sensor. If using multi-conductor cable, use
only one pair per cable.
oDo not run temperature sensor lines parallel to any other wiring. Cross cables at
right angles.
oIn situations where ordinary two-conductor thermostat wire (18 to 20 gauge)
has been installed, it may be used for runs up to 30m (100ft). This is not a
preferred method of installation.
lThe DIN-1TSTAT8 works with the following Crestron temperature sensors:
oCHVI-RTS-1G-SM-W
oCHVI-RTS-1G-N-W
oCHV-RTS
oCHV-RSS.
Cresnet Connections (NET)
Wire the Crestron control system, and other daisy-chained Cresnet devices, to the NET terminals
on the thermostat.

Product Manual — Doc. 9368A DIN-1TSTAT8 • 15
Verify System Operation
After the thermostat is installed and programmed, enter Test mode to verify that each heating
zone is operating correctly. During Test mode, the thermostat performs a heat call on that zone.
To test the zone valve:
NOTE: To exit Test mode, press and hold the desired zone button for 10 seconds.
1. Press and hold the 1-8 button for 10 seconds to enter Test mode on the associated zone.
2. Verify that the zone valve operates as expected. The DIN-1TSTAT8 performs a 5-minute
heat call on that zone. If the valve is programmed to have a time delay, the delay is
initiated and added to the test call for heat. The zone LED flashes for the duration of Test
mode. The zone valve, main valve, and DIN-1TSTAT8 return to their previous states when
Test mode has been completed
NOTES:
lThe time delay is set per the manufacturers specifications.
lThe run-time for Test mode is determined by the time of the delay plus the 5-minute
heat call. Test mode can take up to 10 minutes to complete.

16 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Operation
Bootup
The DIN-1TSTAT8 turns off all heat zones before starting up.
Main Valve Delay
When a heat call is made, a delay from 0 to 5 minutes can be set. The default delay is 5 minutes.
For information regarding the main valve delay, refer to the documentation provided by the
valve manufacturer.
1-8 Buttons and LEDs
Press the 1-8 buttons to switch the heat zone on and off.
The 1-8 LED:
lFlashes during a heat call.
lLights when the heat is enabled, but there is no call for heat.
lExtinguishes when heat is disabled.
MAIN Button and LED
Press and hold the MAIN button for 10 seconds to switch the main valve on and off.
The MAIN LED:
lFlashes during a heat call for one or more zone valves.
lLights when heat is on for one or more zone valves.
lExtinguishes when all zone valves are off.
Temperature Sensors
The temperature sensors operate as follows:
lThe temperature sensor reads the temperature of the room once per second.
lIf a temperature sensor is not connected, the corresponding zone valve turns off and stays
off until a temperature sensor is connected.
lIf a temperature sensor does not send a valid value, or does not function for 10 minutes,
the corresponding zone valve turns off and stays off.

Product Manual — Doc. 9368A DIN-1TSTAT8 • 17
Failsafe Mode
Failsafe mode ensures that an appropriate heat level is maintained in each zone if the stored
setpoint becomes corrupt or if no control system is connected. When the thermostat enters
Failsafe mode, the temperature setpoint for all zones is set to the failsafe setpoint.
Establish the failsafe setpoint in the control system program. The failsafe setpoint can range
from 5ºC (41ºF) to 20ºC (68ºF); the default failsafe setpoint is 20ºC (68ºF). Temperate zones
can use a lower failsafe setpoint and cold climates may use a higher value.
The thermostat exits Failsafe mode after it reestablishes communication with the control
system or if the stored setpoint is restored. The thermostat resumes normal operation according
to its last known state.

18 • DIN-1TSTAT8 Product Manual — Doc. 9368A
Troubleshooting
The following table provides corrective action for possible trouble situations. If further
assistance is required, please contact Crestron True Blue Support.
Trouble Possible Cause(s) Corrective Action
The thermostat is not receiving
a signal.
There is an improper connection
between the sensor and the
thermostat.
Check the connection between
the sensor and thermostat.
An incomplete (open) circuit
exists in wiring.
Check the connection between
the sensor and thermostat.

Product Manual — Doc. 9368A DIN-1TSTAT8 • 19
Resources
The following resources are provided for the DIN-1TSTAT8.
NOTE:You may need to provide your Crestron.com web account credentials when prompted
to access some of the following resources.
Crestron Support and Training
lCrestron True Blue Support
lCrestron Resource Library
lCrestron Online Help (OLH)
lCrestron Training Institute (CTI)Portal
Programmer and Developer Resources
lhelp.crestron.com:Provides help files for Crestron programming tools such as SIMPL,
SIMPL#, and Crestron Toolbox™ software
ldeveloper.crestron.com:Provides developer documentation for Crestron APIs, SDKs, and
other development tools
Product Certificates
To search for product certificates, refer to support.crestron.com/app/certificates.

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Product Manual — Doc. 9368A DIN-1TSTAT8 • 20