Heatmiser PRT Manuel utilisateur

Model: PRT / PRT-N

Slimline Series

2Model: PRT / PRT-N

Table of Contents

3-4

5-6

7-8

11-12

19-22

25-29

Product Image

Table of Contents

What is a Programmable Room Thermostat?

Installation Procedure

LCD Display

Setting the Clock

Temperature Display

Setting the Comfort Levels

Locking the Thermostat

Setting the Temperature

Temperature Hold

Holiday Programming

Frost Protection

Power On / O

Optional Features

Re-calibrating the Thermostat

Factory Reset

Wiring Diagrams

Model: PRT / PRT-N

Slimline Series1

Slimline Series Model: PRT / PRT-N

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.

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

dierent 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.

You are able to temporarily adjust the heating program by overriding or using the

temperature hold feature. These features are explained further on pages 14 and 15 of

this manual.

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 also prevent the thermostat from working

properly.

What is a Programmable Room Thermostat?

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

The programmer allows you to set “On” and“O” periods to suit your own lifestyle.

The room thermostat 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.

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

dierent temperatures in your home at dierent 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 & size

of the heating system.

Similarly reducing the temperature setting does not aect 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.

The way to set and use your programmable room thermostat is to nd the lowest

temperature settings that you are comfortable with at the dierent times you have

chosen, and then leave it alone to do its job.

Slimline Series Model: PRT / PRT-N

Installation Procedure

This Slimline 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 25-29 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.

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.

3 4

Slimline Series Model: PRT / PRT-N

1. Room Temp - Indicates the current temperature sensor mode.

2. Day Indicator - Displays the current day.

3. Frost Icon - Displayed when the thermostat is in frost protection mode.

4. Flame Icon - Displayed when the thermostat is calling for heat, the ame icon

will ash when the optimum start function is in operation.

5. Temperature Hold - When a Temp Hold is active, HOLD FOR and the remaining

time period is displayed.

6. Set - Indicates when changes are being made to programs or temperature set

points.

7. Holiday Indicator - Displayed when the thermostat is in holiday mode.

8. Current Temp - Indicates the current sensor temperature.

9. Program Cycle Indicator - Displayed during programming only to show which

period is being altered.

10. Keypad Lock Indicator - Displayed when the keypad is locked.

11. Units of Temperature - Degrees Celsius or Fahrenheit.

12. Clock - Digital clock display in 24h format.

LCD Display

1 2 345

6 7 8 9 10 11

109

Slimline Series Model: PRT / PRT-N

Setting the Clock

To set the clock, follow these steps.

• With the thermostat turned ON, press the Clock key twice .................................

• Use the Up/Down keys to set the hours ..............................................................

• Press H to conrm settings ................................................................................................

• Use the Up/Down keys to set the minutes .........................................................

• Press H to conrm settings ...............................................................................................

• Use the Up/Down keys to set the day of the week ..........................................

• Press A to conrm settings and return to main display ..........................................

Temperature Display

Day

Hours

Minutes

Room Temperature Set Temperature

This is the current room temperature. This is the temperature you are trying to

achieve in your home.

The temperature display information is driven by two dierent inputs; the sensor

measurement and the target temperature you have set.

1211

Slimline Series Model: PRT / PRT-N

Comfort Levels Explained

The thermostat provides Weekday/Weekend or 7 Day Programming options.

You should consult the “Optional Features”section to select the required mode.

The thermostat is supplied with comfort levels already programmed, but these can be

changed easily. The default times and temperatures are;

08.00 - 21°C (Wake) 09.30 - 16°C (Leave) 16.30 - 22°C (Return) 23.00 - 17°C (Sleep)

If you only want to use 2 levels, you should program the unused levels to --.--

Note: For Weekday/Weekend programming, the 4 comfort levels are the same for all

weekdays but can be dierent for the weekends.

For 7 Day programming, each day can have 4 dierent comfort levels.

• To program comfort levels, press Clock once ...................................................................

• Use the Up/Down keys to enter the required WAKE time .......................

• Press H to conrm settings ..........................................................................................

• Use the Up/Down keys to enter the required WAKE temperature .......

• Press H to conrm settings ..........................................................................................

• You will now see “LEAVE” displayed on screen.

• Repeat the programming steps for each period until complete.

• For unused periods enter --.-- and the thermostat will ignore the setting.

• Press A to conrm settings and return to main display ....................................

Note:

• In 7 Day programming mode you can repeat for each day independently.

• In Weekday/Weekend programming mode you will see Sat Sun displayed on

screen and can repeat for the weekend.

• To change the programming mode please refer to pages 20-22.

For 7 Day programming,

only Mon is displayed

in the day indicator eld.

For Weekday/Weekend programming,

Mon Tue Wed Thu Fri

are displayed on screen.

1413

Slimline Series Model: PRT / PRT-N

Temperature Control

The Up/Down keys allow you to adjust the set temperature .......................

When you press either key, you will see the word SET and the desired

temperature will be displayed on screen.

Use the Up/Down keys to adjust the SET value ..................................................

Press A to conrm settings and return to main display .............................................

Set Temperature

Set Icon

Locking the Thermostat

The thermostat has a keypad lock facility. To activate the lock follow these steps.

• Press and hold the A and Down keys together for 10 seconds ..........

• You will see the lock symbol appear on screen .............................................

• To unlock, repeat the steps above until the lock symbol disappears.

Note: The keypad lock indicator is only displayed when the lock is active.

Note: This override will be maintained until the next programmed comfort level.

Keypad Lock Indicator

1615

Slimline Series Model: PRT / PRT-N

Holiday

Holiday Days

Holiday ON Indicator

Temperature Hold

The temperature hold function allows you to manually override the current operating

program and set a dierent temperature for a desired period.

• Press H to commence temperature hold ...................................................................

• Use the Up/Down keys to enter the required hold time..............................

• Press H to conrm settings ..............................................................................................

• Use the Up/Down keys to enter the required hold temperature..............

• Press A to conrm settings and return to main display ........................................

You will see the Hold For indication is displayed on screen.

The time will countdown the set duration and then revert to the normal program.

To cancel temperature hold, follow the same steps but reduce the Hold time to 00:00 hours.

Hold ON Indicator

Hold Time Remaining

Note: A holiday period does not start until 00:00 the next day. For example, if you set

a holiday period on Friday for 2 days, Saturday will be counted as the rst day and the

thermostat will revert back to the programmed schedule at 00:00 on Monday.

The holiday function reduces the set temperature in your 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 your return.

• Press H three times (until you see the suitcase on screen) .................................

• Use the Up/Down keys to enter the number of days holiday ...................

• Press A to conrm settings and return to main display .......................................

The display will show a suitcase indicating the thermostat is in holiday mode.

To cancel, follow the same steps but reduce the Holiday duration to 00 days.

Thermostat completely OFF Thermostat powered ON

1817

Slimline Series Model: PRT / PRT-N

Pressing the Power button 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 19).

Should the heating be turned on whilst in frost mode, the ame icon will be displayed.

To cancel the frost protect mode, press the Power button once again.

Frost Protection Mode Enabled

Frost Mode Heating On/O

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 Power button..........

The display and heating output will be turned OFF completely.*

To turn the thermostat back ON, press the Power button once again ...................

*See Feature 3 on page 19

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