Heatmiser Slimline-RF User manual

Model: Slimline-RF

1Slimline Series
Model: Slimline-RF

Model: Slimline-RF 2
Table of Contents
1
2
3-4
5-6
7-8
9
10-11
11-12
13-14
15
16
17-18
19
20
21
Product Image
Table of Contents
What is a Programmable
Room Thermostat?
Installation Procedure
Installing the Batteries
Replacing the Batteries
Pairing with the RF-Switch
Receiver Pairing with the UH8-RF
Wiring Centre
LCD Display
Setting the Clock
Temperature Display
Setting the Comfort levels
Locking the Thermostat
Setting the Temperature
Temperature Hold
Holiday Programming
Setting the Hot Water
Switching Times
Hot Water Override
Frost Protection
Power ON / OFF
Re-calibrating the Thermostat
Factory Reset
Optional Features
22
23
24
25
25
26
26
27-30

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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 “Setback” 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 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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Model: Slimline-RF 4
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 20 and 21 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.

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Installation Procedure
This wireless thermostat is designed to be surface mounted.
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
Mark 2 hole positions on the wall using the backplate as a positioning template.
Drill at the marked positions and insert a wall plug into each hole.
Step 3
Screw the thermostat back plate securely on the wall.
Step 4
Clip the front of the thermostat back onto the thermostat back plate.
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.

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Model: Slimline-RF 6
1
34
2

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Installing the Batteries
2x AAA batteries have been supplied with this thermostat.
To access the battery holder, push and release the compartment door located on
the bottom face of the thermostat.

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Model: Slimline-RF 8
Insert the batteries in the empty battery holder, ensuring that each battery is
orientated for the correct polarity + / - .
Push the battery holder back inside the thermostat until it is secured
in its closed position.

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Batteries have a fixed lifespan and will need to be replaced occasionally to
ensure the thermostat operates correctly.
The thermostat will inform you when the batteries need to be replaced by
displaying the battery icon on screen.
Note: You must replace the batteries within 1 minute of removal in order to retain
the current clock and comfort level settings.
Replacing the Batteries
Battery Icon
(Flashes)

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Model: Slimline-RF 10
Pairing With the RF-Switch
With the thermostat turned OFF:
• Press & hold the Clock button until you see two sets of numbers appear ...
• The small number 01 in the top right corner of the LCD is the feature number.
• Press Clock repeatedly until you see feature 06 (Receiver Type) .....................
The options within feature 06 are: 00 = UH8-RF or 01 = RF-Switch receiver.
• Use the Up/Down keys to set feature 06 to 01 (RF-Switch) ......................
• Press Clock again until you see feature 07 (Receiver Address) ........................
• You can now select a Receiver Address from 01-32.
• Use the Up/Down keys to set feature 07 to 01 ..............................................
(You must set a unique receiver address for each receiver installed).
• Press A to confirm settings and the display will go blank .................................
• If in mode 02, the hot water will automatically be paired to HW2.
If using with the UH8-RF wiring centre, turn to page 11.

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Pairing the Thermostat
Pairing With the UH8-RF Wiring Centre
• On the RF-Switch receiver, press and hold the CH1 Pairing button (if a valve is used)
or Boiler CH Pairing button until the Comms LED flashes.
• With the thermostat turned OFF, press & hold the A button for 5 seconds .............
• The thermostat will send a signal for 1 minute and will flash the RF signal icon ...
• If pairing is successful, the Comms LED on the RF-Switch receiver will go out.
• Press the Power button on the thermostat once to confirm pairing ..........................
If pairing is unsuccessful, check features 06 to 07 have been configured correctly.
To eliminate a possible signal issue, reposition the thermostat closer to the receiver and
repeat the pairing process again.
On the UH8-RF, take note of the numbers set on the rotary switches
(UH8-RF ID numbers 01-99).
Each UH8-RF on the system needs to have a different ID number.
Set your first UH8-RF to 01
With the thermostat turned OFF:
• Press & hold the Clock button until 2 sets of numbers appear on screen ................
• The small number 01 in the top right corner of the LCD is the feature number.
Example: Rotary Switch showing ID No. 99.

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Model: Slimline-RF 12
• Press Clock repeatedly until you see feature 06 (Receiver Type) .................
The options within feature 06 are: 00 = UH8-RF or 01 = RF-Switch receiver.
• Use the Up/Down keys to set feature 06 to 00 (UH8-RF) ...............................
• Press Clock again until you see feature 07 (UH8-RF Board Address) .........
• Use the Up/Down keys to set the large digits to the board address of
the UH8-RF. This is the number set on the UH8-RF rotary switches ...........
(You must set a unique board address for each UH8-RF installed).
• Press Clock again until you see feature 08 (Zone number, 01-08) ..............
• The UH8-RF is an 8 zone receiver.
Use the Up/Down buttons to select the zone this thermostat
should be linked to ....................................................................................................
• Press Clock again until you see feature 09 ..........................................................
(00 = Underfloor heating, 01 = Radiators.)
• Use the Up/Down buttons to specify whether the thermostat is
controlling underfloor heating or radiators .......................................................
• Press A to confirm settings and the display will go blank .............................
• Press the Power button once to turn the thermostat back ON ...................
• Press the Up key to set the target temperature above the room
temperature; the flame symbol will appear and the assigned
zone on the UH8-RF will be activated ................................................................
This indicates pairing between the thermostat and the UH8-RF is successful.

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1 2 3 4 6
7 8 9 10 12 13
15
11
5
14

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Model: Slimline-RF 14
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, flashes when the
Optimum Start function is in operation.
5. RF Icon - Flashes when the thermostat communicates with the receiver.
6. Temperature Hold - Displayed when manually overriding the program, “HOLD
FOR” and the time period are displayed.
7. Set - Displayed when changes are made to programs or temperature set points.
8. Holiday Indicator - Displayed when the programmer is in holiday mode.
9. Current Temp - Indicates the current sensor temperature.
10. Program Cycle Indicator - Displayed during programming only to show which
period is being altered.
11. Battery Level - Indicates when the batteries require replacement.
12. Keypad Lock Indicator - Displayed when the keypad is locked.
13. Units of Temperature - Degrees Celsius or Fahrenheit.
14. Timer Status – Displays the current state of the timed output.
15. Clock - Digital clock display in 24h format.
LCD Display

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Setting the Clock
To set the clock, follow these steps.
• With the thermostat turned ON, press the Clock key three times*....................
• 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 *Note: When configured in
programmable without hot
water control (Feature 17 =01),
press the clock key twice to enter
clock setting screen.

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Model: Slimline-RF 16
Temperature Display
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 different inputs; the sensor
measurement and the target temperature you have set.

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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 different for the weekends.
For 7 Day programming, each day can have 4 different comfort levels.
• To program comfort levels, press the Clock key once ..................................................
For 7 Day programming,
only Mon is displayed
in the day indicator field.
For Weekday/Weekend programming,
Mon Tue Wed Thu Fri
are displayed on screen.

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Model: Slimline-RF 18
• Use the Up/Down keys to enter the required WAKE time ......................
• Press H to confirm settings .........................................................................................
• Use the Up/Down keys to enter the required WAKE temperature .......
• Press H to confirm 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 confirm 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 27-30.

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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.
Keypad Lock Indicator