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20

19

TouchScreen 

Series

Model

: PRT-TS / PRT-NTS

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 Differential: 

This function allows you to increase the switching 

differential 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 off when the set 

temperature is achieved. With a 2°C differential, the heating will switch on 2°C below the 

set temperature and will switch off 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 off. 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 – Communication Address:

 This setting is used when you have connected 

your thermostat to a network system. Each thermostat on the network must have a 

unique communication address. This can be set from 01-32.

Feature 07 – 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 08 – Air Sensor Selection: 

This thermostat uses the built in air sensor only.

Feature 09 – Floor Limit Sensor: 

This function is not adjustable on this model.

Feature 10 – Optimum Start:

 Optimum start will delay the start up of the heating 

system to the latest possible moment to avoid unnecessary heating and ensure 

the building is warm at the programmed time. The thermostat uses the rate of 

change information to calculate how long the heating needs to raise the building 

temperature 1°C (with a rate of change of 20, the thermostat has calculated the 

heating needs 20 minutes to raise the building temperature 1°C) and starts the 

heating accordingly.

Feature 11 – Rate Of Change: 

This is the number of minutes the thermostat has 

calculated it takes to raise your building temperature 1°C. The thermostat will 

continue to monitor and learn the heat up time of your home to optimise heating 

efficiency.

Feature 12 - Programming Mode: 

The thermostat offers 2 programming methods. 

Weekday/Weekend allows you to program 4 comfort levels for the weekdays and 

4 different comfort levels for the weekend. In 7 Day program mode, each day has 4 

comfort levels that can be programmed independently.

Optional Features Explained

Summary of Contents for PRT-NTS

Page 1: ...1 Model PRT TS PRT NTS Model PRT TS PRT NTS...

Page 2: ...the Clock Temperature Display Comfort Levels Explained Clean Screen Locking the Keypad 14 15 16 17 18 19 20 21 22 23 24 25 28 Temperature Control Temperature Hold Holiday Programming Frost Protection...

Page 3: ...ains 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...

Page 4: ...ots 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 25 28 of this booklet Step 3 Screw the thermostat b...

Page 5: ...ad is locked 8 OFF Key Single press to enable disable frost protection or press and hold to turn off display 9 Frost Icon Displayed when the thermostat is in frost protection mode 10 Room Temp Indicat...

Page 6: ...target temperature you have set This is the current room temperature This is the temperature you are trying to achieve in your home To set the clock follow these steps Press PROG Press CLOCK Use the...

Page 7: ...r example 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...

Page 8: ...all keys providing you 15 seconds to wipe the screen clean before the keys are re activated The keys under the temperature display allow you to adjust the set temperature When you press either of thes...

Page 9: ...home to the frost protection temperature setting see page 19 The thermostat will maintain this temperature for the duration of the holiday and will then automatically return to the program mode on yo...

Page 10: ...ly To turn the thermostat back ON press the ON key once Heating On Off Pressing the key once will place the thermostat in frost protect mode In this mode the thermostat will display the frost icon and...

Page 11: ...unique communication address This can be set from 01 32 Feature 07 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 t...

Page 12: ...Default Enter Value 00 15 Minutes 00 Default Enter number 01 32 00o 10o C 00o C Default Fixed on Internal Sensor Not available on this model 00 Disabled Default 01 01hr 02 02hr 03 03hr Minutes to rais...

Page 13: ...to configure the new temperature Press DONE to confirm 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 res...

Page 14: ...tions wire the P L and S L directly to the boiler or if there is no system valve take A1 A2 directly to the boiler Heating Valve L P L To Boiler S L Live Neutral N PRT TS N A2 A1 230VAC L Wiring Diagr...

Page 15: ...ELDEN 9538 Connect the screen to Earth at the UH1 UH1 ZONE X ZONE X A2 A1 B Y _ A2 A1 B Y _ PRT NTS Y B A2 A1 12VDC Network RT1 RT2 PRT NTS Y B A2 A1 12VDC Network RT1 RT2 A2 B2 NO NC C NO NC C N E L...

Page 16: ...30 29 TouchScreen Series Model PRT TS PRT NTS Notes Notes...

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 con...

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