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4

3

Wireless 

Series

Model:  

PRT-EWTS

What is a Programmable Room Thermostat?

The way to set and use your programmable room thermostat is to find 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 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.

You are able to temporarily adjust the heating program by overriding or using the 
temperature hold feature.  These features are explained further on pages 15 and 16 
of this manual.

Programmable room thermostats need a free flow of air to sense the temperature, 
so they must not be covered by curtains or blocked by furniture. Nearby electric 
fires, televisions, wall or table lamps may also prevent the thermostat from working 
properly.

A programmable room thermostat is both a programmer and a room thermostat. 

A programmer allows you to set “On” and “Off” 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 and preferences.

Setting a programmable 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 and size 
of the floor heating system.

Similarly reducing the temperature setting does not affect how quickly the room cools 
down. Setting a programmable room thermostat to a lower temperature will result in the 
room being controlled at a lower temperature, and saves energy.

Summary of Contents for PRT-EWTS

Page 1: ...1 Model PRT EWTS Model PRT EWTS...

Page 2: ...he Clock Temperature Display Comfort Levels Explained Clean Screen Locking the Keypad Temperature Control 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Temperature Hold Holiday Programming Frost Protectio...

Page 3: ...ps may also prevent the thermostat from working properly A programmable room thermostat is both a programmer and a room thermostat A programmer allows you to set On and Off periods to suit your own li...

Page 4: ...ep B Release the desk stand Do Mount the thermostat at eye level Read the instructions fully so you get the best from our product Don t Do not push hard on the LCD screen as this may cause irreparable...

Page 5: ...nly 10 Floor Temp Achieved Icon Displayed when the floor set temperature is reached 11 Battery Icon Indicates current battery charge level 12 Room Temp Indicates the current temperature sensor mode 13...

Page 6: ...er follow these steps On the receiver Press the Pair button once The Communication LED will light up On the thermostat Press PROG and then SETUP At the top of the LCD you will see 01 Use the Up key to...

Page 7: ...in air and floor sensing mode the thermostat will display a FLOOR button Pressing this allows you to view the current floor temperature the thermostat automatically reverts back to ROOM TEMP after 5 s...

Page 8: ...ple you may want the home warm in the morning when you are getting ready for work cooler during the day when the house is unoccupied and then warmer in the evening when you are home relaxing The therm...

Page 9: ...er of the display and hold for 10 secs 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 al...

Page 10: ...unction reduces the set temperature in your home to the frost protection temperature setting see page 21 The thermostat will maintain this temperature for the duration of the holiday and will then aut...

Page 11: ...l be displayed To cancel the frost protect mode press the key once Frost Protection Mode Enabled Frost Mode The heating is indicated ON when the flame icon is displayed When the flame icon is absent t...

Page 12: ...system against a loss of wireless signal or in case the thermostat battery fails whilst you are away Feature 07 Optimum Start Optimum start will delay the start up of the heating system to the latest...

Page 13: ...air with the receiver 00 Disabled 01 Enabled 00 Default 01 03 Hours 00 Disabled Minutes to raise by 1o C 00 Weekday Weekend 01 7 Day Programming 00 Default 20o 45o C 28o C Default SETTING Optional Set...

Page 14: ...rature Press the Power key once to turn the thermostat back on Re calibrating the Thermostat All icons displayed simultaneously Factory reset is complete The thermostat has a reset function to restore...

Page 15: ...6 months before recharging is required in normal operating conditions To recharge the battery you need to connect the thermostat to a power source A mini USB to USB lead is supplied with the thermosta...

Page 16: ...s E0 The internal sensor has developed a fault You should contact your thermostat retailer for assistance E4 The floor sensing probe to the RC2 WTS has either not been connected has been wired incorre...

Page 17: ...Call our support team on 44 0 1254 669090 Or view technical specifications directly on our website www heatmiser com PDF FAQ Heating Professionals Request a copy of our product installation guide cont...

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