Heatmiser DT-ETS WiFi RF User manual

1Model: DT-ETS WiFi RF
Model: DT-ETS WiFi RF

Model: DT-ETS WiFi RF
2Model: DT-ETS WiFi RF
WiFi Series Model: DT-ETS WiFi RF
Table Of Contents
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1
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2
3-4
5-6
7-8
9-11
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15-16
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Product Image
Table of Contents
What is a Room Thermostat?
Installation Procedure
LCD Display
WiFi Setup
Security Types and Compatibility
Remote Access Via App
Remote Access Via Web Browser
Temperature Display
Pairing with the RC2-W
Clean Screen
17
18
19
20
21-22
23
24
25
26
27
28-29
30
Locking the Keypad
Temperature Control
Frost Protection
Heating ON/OFF
Optional Features Explained
Adjusting the Optional Settings
Optional Settings - Features Table
Re-calibrating the Thermostat
Factory Reset
Error Codes
Wiring Diagrams
Notes

43 WiFi Series Model: DT-ETS WiFi RF
What is a Room Thermostat?
A room thermostat simply switches the heating system on and o as necessary.
It works by sensing the air temperature, switching on the heating when the air
temperature falls below the thermostat setting, and switching it o once this set
temperature has been reached.
Setting a room thermostat to a higher temperature will not make the room heat up
any faster. How quickly the room heats up, depends on the design & size of the heating
system.
Similarly reducing the temperature setting does not aect how quickly the room cools
down. Setting a room thermostat to a lower temperature will result in the room being
controlled at a lower temperature, and saves energy.
The way to set and use your room thermostat is to nd the lowest temperature settings
that you are comfortable with, and then leave it alone to do its job.
The best way to do this is to set the room thermostat to a low temperature – say 18°C ,
and then turn it up by 1°C each day until you are comfortable with the temperature. You
won’t have to adjust the thermostat further.
Any adjustment above this setting will waste energy and cost you more money.
Room thermostats need a free ow of air to sense the temperature, so they must not
be covered by curtains or blocked by furniture. Nearby electric res, televisions, wall or
table lamps may also prevent the thermostat from working properly.
This model DT-ETS WiFi RF thermostat has been specically designed to operate with
electric underoor heating systems.
Model DT-ETS WiFi RF is also equipped with dierent temperature sensor options to
control the electric underoor heating system. The thermostat’s built in sensor measures
the air temperature at the thermostat position within the room and uses measured
values to control the electric underoor heating system. Alternatively, optional remote
air and oor sensors can be connected with DT-ETS WiFi RF and remote temperature
measurements can be used instead to control the electric underoor heating system.
The thermostat enables easy switching between sensor modes providing a remote air
sensor is connected.
Please read the instructions fully to understand all of the features of this DT-ETS WiFi RF
thermostat.

65 WiFi Series Model: DT-ETS WiFi RF
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3 4
Installation Procedure
This WiFi Series thermostat is designed to be ush mounted and requires a back
box of 35mm (minimum depth) to be sunk into the wall prior to installation.
Step 1
Carefully separate the front half of the thermostat from the back plate by placing a
small at head terminal driver into the slots on the bottom face of the thermostat.
Step 2
Place the thermostat front somewhere safe.
Terminate the thermostat as shown in the diagrams on pages 28-29 of this booklet.
Step 3
Screw the thermostat back plate securely into the back box.
Step 4
Clip the front of the thermostat back onto the thermostat back plate.
Do
Mount the thermostat at eye level.
Read the instructions fully so you get the best from our product.
Don’t
Do not install near to a direct heat source as this will aect functionality.
Do not push hard on the LCD screen as this may cause irreparable damage.

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11
1. Frost Icon - Displayed when the thermostat is in frost protection mode.
2. OFF Key - Single press to enable/disable frost protection or press and hold to turn
o display.
3. Flame Icon - Displayed when the thermostat is calling for heat.
4. Keypad Lock Icon - Displayed when the keypad is locked.
5. WiFi Icon - Displayed when a WiFi connection is established.
6. Room Temp - Indicates the current temperature sensor mode.
7. Set - Displayed when the target temperature is adjusted.
8. Clean Screen - Freezes screen temporarily to enable cleaning.
9. Cancel - Used to exit setup/program operations.
10. Setup/Programming Keys - Used to navigate setup options.
11. Up/Down Keys - Increase or decrease values shown on bottom digit group.
12. Current Temp - Indicates the current sensor temperature.
13. Units of Temperature - Degrees Celsius or Fahrenheit.
LCD Display
5
7
9
10
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87 WiFi Series Model: DT-ETS WiFi RF

109 WiFi Series Model: DT-ETS WiFi RF
Setting Up Your WiFi Thermostat
Step 1:
Download and install the WiFi thermostat setup utility from our web site:
www.heatmiser.co.uk/wi
Step 2:
Connect the thermostat to your PC with the USB cable provided. This will power the
thermostat through the USB port and will allow you to test the WiFi connection.
Open the setup utility and press Read to view the current thermostat conguration.
Step 3:
Enter the SSID, Security Type and Security Code of your wireless network.
These settings can usually be found on the underside of your wireless router.
For more information please consult your router manual.
See page 11 for additional information on security types and compatibility.
Step 4:
Enter a xed IP address for your WiFi thermostat outside of the router DHCP range.
It is likely that your network will be congured to operate on a DHCP basis.
This means your router automatically issues an IP address to a device that
successfully connects to the network.
Your WiFi thermostat needs a xed IP address in order for local and remote access
to operate and you must set this up manually.
Log into your wireless router and navigate to the LAN settings page.
Find and select the DHCP setup details.
This should dene the IP range that can be assigned to devices connecting to
the network.
As an example, you may have an IP starting range 192.168.1.1 and ending
192.168.1.99. This means you can safely provide your WiFi thermostat the IP
address 192.168.1.100 as no other devices will be assigned this address by the
router.
If your DHCP range is from 192.168.1.1 to 192.168.1.253 you cannot use 254 or
above.
You need to change the DHCP range, taking care not to change any of the rst
3 numbers.
Tip! When setting up an IP address, the rst three sets of numbers must be the
same as the router IP address and the fourth set must not be used elsewhere on the
network.
Step 5:
Enter the Subnet mask for the network.
This information can usually be found on the underside of your wireless router.
Step 6:
Enter the IP address of your gateway and DNS. In most cases, this is the IP
address of your wireless router.
If you have a multi-zone system and are using the Multi-Link, the Gateway of
the thermostat will need to be congured as the IP address of the Multi-Link.

1211 WiFi Series Model: DT-ETS WiFi RF
Step 7:
Create a unique username and password that will be used to access your thermostat
from a web browser.
Default Username: admin Default Password: admin
Change these settings to your personal preference and record for future use.
A 4 digit access PIN is required to use the smartphone/tablet app and also helps to
secure your system.
Step 8:
When you have entered the details of your WiFi network press Apply and disconnect
the USB cable, (the thermostat LCD should go blank).
Reconnect the USB cable to the WiFi thermostat, when the thermostat has rebooted it
will attempt to connect to your network. This process takes approximately one minute
and is complete when the WiFi symbol is displayed on screen.
Security Types and Compatibility
The WiFi Thermostats operate on the 802.11b standard.
If your router is a G model, you must ensure it is setup to work in B&G mode.
You will not be able to connect to your thermostat without changing this setting on
G model routers.
There are currently 4 common methods of securing your wireless connection:
OPEN/DISABLED (not recommended)
W.E.P. (lowest security level)
Your choice of security settings in the thermostat must match the setting in your
router. Often you will nd WPA and WPA2 are a single option in the router.
This is perfectly normal as the router automatically selects the correct security level
and you can set the thermostat up using either one of these settings.
Passwords can be up to 63 characters in length including spaces _. / \ characters.
The W.E.P. option is not so simple. Some routers generate a hidden password from
a pass phrase whilst others require a 10 or 26 digit hex password and won’t accept
anything else. Your thermostat utility can deal with both options but the following
restrictions may apply:
A hex password can only be made up of the numbers 0 to 9 and the letters a to f
(lower case only).
Hex passwords can only be 10 characters or 26 characters in length.
If a passphrase is used it must be either 5 or 13 characters in length but can be any
letter or number.
Your thermostat will automatically calculate the same hidden password your router
creates from the same phrase.
These restrictions are common to most routers but you should refer to the router
manual for specic restrictions that apply to your model.
W.P.A. (medium security)
W.P.A.2. (highest security)

Room Temperature SET Temperature
Temperature Display
The temperature display information is driven by two dierent inputs; the sensor
measurement and the target temperature you have set.
This is the current room temperature. This is the temperature you are trying to
achieve in your home.
1413 WiFi Series Model: DT-ETS WiFi RF
To remotely connect to your WiFi Thermostat you must forward a port within your
router to your WiFi Thermostat.
As all routers are setup dierently, you should consult your user manual or the
manufacturer’s website for more information.
Generally you should create a new service within your router. Within this service
you must open TCP port 8068.
Use the port forwarding function to forward the new service to the IP address of
your WiFi thermostat.
Remote Access via App
To remotely access your WiFi Thermostat via a web browser you must rst open
port 80 and forward this to the IP address of your WiFi Thermostat.
Remote Access via Web Browser
To connect to your thermostat, open your preferred browser and enter the IP
address that you gave the thermostat during setup and press enter.
You will be asked to enter a password and username.
These are both set to“admin” as default.
We recommend you change these settings to ensure the security of your system.
For further information, click the help link within the browser.

1615 WiFi Series Model: DT-ETS WiFi RF
Pair Successful
The address of the receiver will ash on the thermostat display and the
Comms LED on the receiver will ash and then go out to indicate the
pair is successful.
• Press DONE to conrm the pairing ................................................................
Pair Fail
If the Comms LED does not ash there is a problem with the RF signal and
you should reduce the distance between the thermostat and receiver.
Where possible ensure there are no metal objects blocking the signal.
Check feature 07 has been congured correctly.
Comms LED
To pair the thermostat with the RC2-W receiver, follow these steps.
On the receiver;
Press and hold the Pairing button until the Comms LED lights up.
On the thermostat;
• Press SETUP ...............................................................................................................................
• The small number 01 in the top right corner of the LCD is the feature number.
• Use the Up key to select 07 (Receiver Address) ..........................................................
• You can now select a Receiver Address from 01-32.
Use the Up/Down keys to set the RC2-W Receiver address .........................
(You must set a unique receiver address for each receiver installed).
• Press DONE to conrm and exit .......................................................................................
• To pair the thermostat with the receiver, press and hold the
SCREEN button for 10 seconds .........................................................................................
Pairing with the RC2-W Receiver

1817 WiFi Series Model: DT-ETS WiFi RF
Locking the Keypad
The thermostat has a keypad lock facility.
• To activate the lock press the bottom right corner of the display and hold for 10s.
• When activated, you will see the Keypad Lock symbol.
• To cancel, press the bottom right corner of the display again for 10 secs.
Clean Screen
Pressing will disable all keys, providing you 15 seconds to wipe the screen
clean before the keys are re-activated.
Keypad Lock Indicator
The keys under the temperature display allow you to adjust the
set temperature.
When you press either of these keys, you will see the temperature and
the word SET appear on screen.
Select the desired temperature and press to conrm and exit.
Temperature Control
Set Temperature
Set Icon

2019 WiFi Series Model: DT-ETS WiFi RF
Frost Mode
Frost Protection Mode Enabled
Pressing the key once will place the thermostat in frost protect mode.
In this mode, the thermostat will display the frost icon and will only turn the heating on
should the room temperature drop below the set frost temperature (see page 21).
Should the heating be turned on whilst in frost mode, the ame symbol will be
displayed.
To cancel the frost protect mode, press the key once.
The heating is indicated ON when the ame icon is displayed.
When the ame icon is absent, there is no requirement for heating to achieve the set
temperature but the thermostat remains active.
To turn the thermostat OFF completely, press and hold the OFF key .......................
The display and heating output will be turned o completely.*
To turn the thermostat back ON, press the ON key once ...............................................
Heating On/O
Thermostat completely OFF Thermostat powered ON
*See Feature 3 on page 21

2221 WiFi Series Model: DT-ETS WiFi RF
THE FOLLOWING SETTINGS ARE OPTIONAL AND IN MOST CASES
NEED NOT BE ADJUSTED
Feature 01 – Temperature Format: This function allows you to select between °C or °F.
Feature 02 - Switching Dierential: This function allows you to increase the switching
dierential of the thermostat. The default is 1°C which means the thermostat will
switch the heating on 1°C below the set temperature and will turn it o when the set
temperature is achieved. With a 2°C dierential, the heating will switch on 2°C below the
set temperature and will switch o when the set temperature is achieved.
Feature 03 - Frost Protect: You can set whether the thermostat will maintain the frost
temperature when the thermostat display is turned o. As a default, this is enabled.
Feature 04 – Frost Protect Temperature: This is the temperature maintained when the
thermostat is in frost mode. The range is 07-17°C. The default is 12°C and is suitable for
most applications.
Feature 05 – Output Delay: To prevent rapid switching, an output delay can be entered.
This can be set from 00 - 15 minutes. The default is 00 which means there is no delay.
Feature 06 – Not used on this model.
Optional Features Explained
Feature 07 – Receiver Address: Within one building, up to 32 RC2-W receivers can
be used. Each receiver must have a unique address.
Feature 08 – Not used on this model.
Feature 09 – Not used on this model.
Feature 10 – Fail Safe: If enabled, the thermostat will send a signal to the receiver
every 20 minutes. Should the receiver fail to receive two signals, the receiver will
activate the output for 20% of the time. This is to protect the system against a loss of
wireless signal and in case the thermostat battery fails whilst you are away.
Feature 11 – Temperature Up/Down Limit: This function allows you to limit the use
of the up and down keys. This limit is also applicable when the thermostat is locked
and so allows you to give others limited control over the heating system.
Feature 12 – Air Sensor Selection: On this thermostat, you can select which sensor
should be used. Built in sensor or remote air sensor.
Feature 13 – Floor Limit Temperature: This function allows you to set a maximum
oor temperature in order to protect the oor surface from overheating.

2423 WiFi Series Model: DT-ETS WiFi RF
To adjust the optional settings, follow these steps.
• Press SETUP ..................................................................................................................
• Use the Up/Down keys at the top of the screen to select the feature
number (shown on page 24) and then use the Up/Down keys in the
center to adjust the setting ....................................................................................
• Press DONE to conrm settings and exit ...........................................................
Adjusting the Optional Settings
Feature Number
Setting Value
01
02
03
04
05
06
07
08
09
10
11
12
13
FEATURE
Temperature Format
Switching Dierential
Frost Protect
Frost Protection Temperature
Output Delay
Not used on this model
Receiver Address
Not used on this model
Not used on this model
Fail Safe
Up/Down Temperature Limit
Sensor Selection
Floor Temperature Limit
DESCRIPTION
00 = oC
01 = oF
(°C = Default)
0.5o- 3.0oC (1.0oC = Default)
00 = Disabled
01 = Enabled
(01 = Default)
07o- 17oC (12oC = Default)
00 - 15 Minutes (00 = Default)
RC2-W = 01-32
00 = Disabled, 01 = Enabled
00 - 10oC
00 = Built in sensor, 01 = Remote air sensor
20o- 45oC (28oC = Default)
SETTING
Optional Settings - Feature Table

2625 WiFi Series Model: DT-ETS WiFi RF
All icons displayed simultaneously. Factory reset is complete.
Calibration Temperature Setting
Set Icon
If you need to re-calibrate the thermostat, follow these steps.
• Press and hold the OFF key to turn the thermostat o .................................................
• Press and hold the ON key until the temperature appears on the screen .............
• Use the Up/Down keys to congure the new temperature ...............................
• Press DONE to conrm the new temperature ..................................................................
• Press the ON key once to turn the thermostat back on ...............................................
Re-calibrating the Thermostat
The thermostat has a reset function to restore all settings to their factory defaults.
To perform a factory reset, follow these steps.
• Press & hold the OFF key to turn the thermostat display o ..................................
• Press and hold the bottom left corner of the LCD for 10 seconds.
• All of the screen icons will appear for 2 seconds and then disappear.
• Press the ON key once to turn the thermostat display back on ............................
Factory Reset

2827 WiFi Series Model: DT-ETS WiFi RF
Wiring Diagram - DT-ETS WiFi RF
Neutral
Live
Recommendations
Max Cable Size - 1.5mm
Back Box Depth - 35mm
N.B. The DT-ETS WiFi RF is designed to work
with the RC2-W. Please refer to the appropriate
diagram for connections to your
heating system.
Remote Air Probe
If Fitted
Mains Supply
From Fused Spur
DT-ETS WiFi RF
NLRT2 -
230VAC
Room
Sensor
Error Codes
E0 = The internal sensor has developed a fault.
You should contact your thermostat retailer for assistance.
E2 = The remote air probe has not been connected, has been wired incorrectly
or the probe is faulty.
Error Icon
Error Number

3029 WiFi Series Model: DT-ETS WiFi RF
Notes
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Floor Probe
(Fit in tubing)
Mains Supply
230V - 16 Amps
Mains supply must be fused correctly
Floor
Sensor
RC2-W
R- LOAD L
R+ N N
230VAC
Live
Neutral
Matting
Wiring Diagram - DT-ETS WiFi RF
RC2-W Receiver Connections

31 WiFi Series
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