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Contents Page
Display Symbols Explained 7
Temperature Display 8
Setting the Clock 8
Comfort Levels Explained 9-11
Setting the Hotwater Switching Times 12-13
Locking the Keypad 13
Temperature Override 14
Temperature Hold 14
Howater Override 15
Holiday 16
Heat On/Off 17
Clean Screen 17
Factory Reset 18
Optional Feature Setup 19-23
Wiring Diagrams 24-25
What is a programmable room thermostat ?
A programmable room thermostat is both a programmer
and a room thermostat. A programmer allows you to set
“On” and “Off” time 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.
Turning a programmable room thermostat to a higher setting
will not make the room heat up any faster. How quickly
the room heats up depends on the design of the heating
system, for example, the size of the boiler and radiators.
Neither does the setting affect how quickly the room cools
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down. Turning a programmable room thermostat to a lower
setting 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.
The best way to do this is to set low temperatures first, say
18ºC, and then turn them up by one degree each day until
you are comfortable with the temperatures. You won’t have
to adjust the thermostat further. Any adjustment above
these 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
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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.
The time on the programmer must be correct. Some types
have to be adjusted in spring and autumn at the changes
between Greenwich Mean Time and British Summer Time.
You may be able to temporarily adjust the heating
programme, for example, “Override”, “Advance” or “Boost”.
These are explained in the manufacturer’s instructions.
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 prevent the thermostat
from working properly.
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Installation Procedure
DO’s
1. Do mount the thermostat at eye level.
2. Do read the instructions fully so that you get the best
from our product.
DON’Ts
1. Do not install near a direct heat source as this will affect
the workings of the thermostat.
2. Do not push hard on the LCD otherwise you will damage
the liquid crystal display and this is not repairable.
Installation
The thermostat is designed to be flush mount, a back
box of 35mm should have been sunk in 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 in to
the slots on the bottom face of the thermostat.
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Step 2
Carefully unplug the ribbon connector which is plugged in to
the front half of the thermostat.
Place the thermostat front half somewhere safe. Terminate
the thermostat as shown in the diagrams at the back of this
booklet.
Screw the thermostat back plate on to the back box
Step 3
Re-connect the thermostat ribbon cable and clip the two
halves together.
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