Heatmiser Slimline User Manual

Model: Slimline

Slimline Series

22

Table of Contents

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 / Off

Optional Features

Re-calibrating the Thermostat

Factory Reset

Wiring Diagrams

1

2

3-4

5-6

7-8

10

11-12

13

14

15

16

17

18

19-22

23

24

24Factory Reset

25-27

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Model: Slimline

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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 “Off” 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 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 & size of the 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.

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.

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Slimline Series

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 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.

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 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.

Model: Slimline

4

Installation Procedure

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 affect functionality. Do not push hard on the LCD screen as this may cause irreparable damage.

This Slimline Series thermostat is designed to be flush 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 flat 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 25-27 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.

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Slimline Series

1 2

3 4

Model: Slimline

6

1 2 3 4 5

6 7 8 9 10 11

12

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Slimline Series

LCD Display

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 flame icon will flash 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.

Model: Slimline

8

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 confirm settings ...............................................................................................

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

• Press H to confirm settings ..............................................................................................

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

• Press A to confirm settings and return to main display .........................................

Day

Hours

Minutes

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Slimline Series

Heatmiser Slimline User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual