Heatmiser PRTHW-TS User manual

Operating Instructions
Model: PRTHW-TS WiFi RF
01/13 Version 1
Ref: PRTHW-TSWIFI RF

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Contents Page
Setting up your WiFi Thermostat 2-5
Remote Connection Setup 6-9
Pairing with the Receiver 9-12
Display Symbols Explained 16
Installation Procedure 17-18
Setting the Clock 19
Comfort Levels Explained 20
Setting The Hot Water Switching 23
Hot Water Override 23
Locking the Keypad 24
Temperature Override 24
Temperature Hold 25
Holiday 25
Heat On/Off 26
Clean Screen 26
Factory Reset 26
Optional Feature Setup 27-32
Re-calibrating the Thermostat 33
Wiring Diagrams 34-35

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Setting up your WiFi Thermostat
Step 1: Download and install the network 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 from the USB
port & will allow you to test the Wi-Fi connection.
On the Utility press Read to view the current thermostat
conguration.
Step 3: You should enter the SSID, Security Type and
Security Code of your wireless network. These settings can
be found in your wireless router, consult your router manual
for more information. For more details see security types
below.
Step 4: You need to enter a xed IP address for your Wi-Fi
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.

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Your Wi-Fi thermostat needs a xed IP address in order for
local and remote access to operate, so you will need to set
this up manually.
Log into your wireless router and navigate to the LAN
settings page. You should see an option for DHCP setup.
This should detail 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 would mean you can safely provide your Wi-Fi
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 will 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, the fourth set
must not be used elsewhere on the network.
Step 5: Enter the Subnet mask for the network, this
information can be found in your wireless router.

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Step 6: You need to enter the IP address of your gateway
and DNS. In most cases, this is the IP address of your
wireless router. If you are using the Multi-Link on the system,
the gateway of the thermostat will need to be the IP address
of the Multi-Link.
Step 7: Browser Username & Password
You should now create a username and password that is
used when you access your thermostat from a web browser.
The default username is admin and the default password is
also admin.
Access PIN
The access PIN is required when you are using the iPhone
app and helps secure your system. This PIN should be
entered in the Network Setup screen.
Step 8: Checking Connection
Once you have entered the details of your Wi-Fi network
press Apply and disconnect your thermostat wait 5 seconds
then reconnect it. Once the thermostat has rebooted wait
approximately one minute, you should then see the Wi-Fi
symbol on the display indicating the Wi-Fi Thermostat
has successfully connected to your network. The Wi-Fi
symbol is 3 curved lines just below the OFF button.

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Security Types & Compatability Explained
The Wi-Fi Thermostats operate on the 802.11b standard.
If your router is a G model, you should ensure it is setup to
work in B&G mode otherwise you will not be able to connect
to your thermostat.
There are currently 4 methods of securing your wireless
connection in common use
These are :
OPEN/DISABLED (not recommended )
W.E.P. (lowest security level)
W.P.A. (medium security )
W.P.A.2. (highest security )
Your choice of security settings in the thermostat must
match the setting in your router. Quite often you will nd
WPA and WPA2 as a single option in the router this is
perfectly normal the router knows which one to use, and
you can therefore set the thermostat up using either one.
The password 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.
The following restrictions 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.
You will nd most routers have these same restrictions.
Remote Connection Setup
In order to connect to your WiFi thermostat remotely, you need
to forward ports within your router to the WiFi thermostat.
This is usually congured in the Port Forwarding section
of the router, as all routers are congured differently,
you will need to consult your router user manual or the
manufacturers website for more information.
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As a brief outline, you should rst create a new service
within your router, specifying the port number and the IP ad-
dress to forward to, the port numbers needed are explained
below.
Remote access via smartphone/tablet
To access your WiFi thermostat remotely via smartphone or
tablet, you need to forward port 8068 to the IP address of
your WiFi thermostat.
Remote Access via Web Browser
To access your WiFi thermostat remotely via web browser,
you need to forward port 80 to the IP address of your WiFi
thermostat.

Connecting to the Thermostat from your
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 now be asked for a
password and username, these are both “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.
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Connecting to the Thermostat from your
Smartphone or Tablet application
To connect to your thermostat, launch the app on your
smartphone or tablet, there are now three sections to ll in.
Lan IP – This is the static IP address you have assigned to
the WiFi thermostat.
WAN IP – This is either your static IP address or Dynamic
DNS address when connecting to your network remotely.
PIN – This is the four digit pin number assigned to the WiFi
thermostat on conguration.
Once this information has been entered the app will store
this for the next time you connect.
Pairing the Thermostat
with the RC1-W receiver
If using the UH1-W wiring centre as the receiver turn to page 8
On the RC1-W:
Press & hold the pairing button on the RC1-W receiver until
the comms led lights up.
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On the PRTHW-TS WiFi RF:
• Press Prog then Setup.
• At the top of the screen press the Up button to select
feature 06.
• Use the up/down buttons in the centre of the screen & set
the large number to 01, this congures the thermostat to
communicate with the RC1-W.
• Press the UP button at the top of the screen to select
feature 07.
• Use the up/down buttons in the centre of the screen to
select the RC1-W receiver address you are
communicating with.(01-32)
• The heating output will be automatically assigned to zone
1 and the hot water will be zone 2.
• Press the DONE button.
To pair the thermostat with the receiver, press & hold the
SCREEN button for 10 seconds:
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Pair Successful
The address of the receiver will ash on the thermostat
display & the comms led will ash on the RC1-W receiver.
Press DONE on the thermostat to conrm pairing with the
RC1-W receiver.
Pair Fail
If the Comms LED on the receiver does not ash, there
could be a problem with the RF signal. Reduce the distance
between the thermostat and receiver, where possible
check that no metal objects are blocking the signal.
Also check that features 06 – 08 have been congured
correctly.
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Pairing the thermostat with the UH1-W
On the UH1-W:
Set the board id number on the UH1-W by selecting from
01-09 indicated on the rotary switch. Each UH1-W on the
system will need a different id number.
On the PRT-TS WiFi RF:
• Press Prog then Setup.
• At the top of the screen press the Up button to select
feature 06.
• Use the up/down buttons in the centre of the screen & set
the large number to 00, this congures the thermostat to
communicate with the UH1-W.
• Press the UP button at the top of the screen to select
feature 07.
• Use the up/down buttons in the centre of the screen
to select the UH1-W board id number you are
communicating with. (01-09)
• Press the up button at the top of the screen to select
feature 08.
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• Use the up/down buttons in the centre of the screen
to select which zone number on the UH1-W you are
assigning the thermostat to. (01-08)
• Press the up button at the top of the screen to select
feature 09.
• Use the up/down buttons in the centre of the screen to
select if the thermostat will bring on the pump & boiler
outputs. 00=UFH (Outputs enabled) 01=Radiator (Outputs
not enabled).
• Press the Done button.
Testing the communications with the UH1-W
On the thermostat use the Up button and take the set
temperature above the room temperature then press done.
You will now see the ame symbol and after a few seconds
the assigned zone on the UH1-W should now be active.
If the output on the UH1-W does not come on, reduce the
distance between the PRTHW-TS WiFi RF and UH1-W also
check features 06-09 have been congured correctly, then
repeat the above process.
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What is a programmable room thermostat?
A programmable room thermostat is both a programmer
and a room thermostat. A programmer allows you to set
“On” and “Off” time periods to suit your own lifestyle. A
room thermostat works by sensing the air temperature,
switching on the heating when the air temperature falls
below the thermostat setting, and switching it off once this
set temperature has been reached.
So, a programmable room thermostat lets you choose what
times you want the heating to be on, and what temperature
it should reach while it is on. It will allow you to select
different temperatures in your home at different times of the
day (and days of the week) to meet your particular needs.
Turning a programmable room thermostat to a higher setting
will not make the room heat up any faster. How quickly
the room heats up depends on the design of the heating
system, for example, the size of the boiler and radiators.
Neither does the setting affect how quickly the room cools
down. Turning a programmable room thermostat to a lower
setting will result in the room being controlled at a lower
temperature, and saves energy.
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The way to set and use your programmable room
thermostat is to nd the lowest temperature settings that
you are comfortable with at the different times you have
chosen, and then leave it alone to do its job.
The best way to do this is to set low temperatures rst, say
18ºC, and then turn them up by one degree each day until
you are comfortable with the temperatures. You won’t have
to adjust the thermostat further. Any adjustment above
these setting will waste energy and cost you more money.
If your heating system is a boiler with radiators, there
will usually be only one programmable room thermostat
to control the whole house. But you can have different
temperatures in individual rooms by installing thermostatic
radiator valves (TRVs) on individual radiators. If you don’t
have TRVs, you should choose a temperature that is
reasonable for the whole house. If you do have TRVs, you
can choose a slightly higher setting to make sure that
even the coldest room is comfortable, then prevent any
overheating in other rooms by adjusting the TRVs.
The time on the programmer must be correct. Some types
have to be adjusted in spring and autumn at the changes
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Wi-Fi Thermostat Display Guide V1.0
Wi-Fi Thermostat Display Guide
V1.0
Shown on the PRT-ETS WiFi Model. Displayed when the floor temperature
rises above the floor limit temperature.
Indicates the current room temperature.
Indicates the current floor temperature (PRT-ETS WiFi Only).
Indicates the thermostat is in Away Mode.
Indicates the thermostat has successfully connected to the Wi-Fi Router.
Indicates the heating output is on.
Indicates the thermostat is locked.
Indicates whether the hot water output is on or off.
Temperature Format Display.
Shown when the thermostat is in “Clean Screen Mode” During this mode,
all buttons are disabled to allow for cleaning of the thermostat.
Shown during a holiday to indicate holiday time remaining.
Shown during a hold period to indicate the hold time remaining.
Wake, Leave, Return, Sleep are the 4 comfort settings available.
Time 1-4 are available only on the PRTHW and TM1 versions.

between Greenwich Mean Time and British Summer Time.
You may be able to temporarily adjust the heating
programme, for example, “Override”, “Advance” or “Boost”.
These are explained in the manufacturer’s instructions.
Programmable 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 prevent the thermostat
from working properly.
Installation Procedure
DO’s
1. Do mount the thermostat at eye level.
2. Do read the instructions fully so that you get the best
from our product.
DON’Ts
1. Do not install near a direct heat source as this will affect
the workings of the thermostat.
2. Do not push hard on the LCD otherwise you will damage
the liquid crystal display and this is not repairable.
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Installation
The thermostat is designed to be ush mount, a back
box of 35mm should have been sunk in 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 in to
the slots on the bottom face of the thermostat.
Step 2
Place the thermostat front half somewhere safe.
Terminate the thermostat as shown in the diagrams at the
back of this booklet.
Screw the thermostat back plate on to the back box.
Step 3
Re-connect the two parts of the thermostat
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