Timeguard ProgramaStat Product guide

Electronic Room
Thermostat
Cat. No. TRT030
Operating & Installation Instructions

A room thermostat simply switches the heating
system on and off as necessary. It 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.
Turning a 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 boiler and radiators.
Neither does the setting affect how quickly the
room cools down. Turning a room thermostat to a
lower setting will result in the room being controlled
at a lower temperature, and saves energy.
The heating system will not work if a time switch
or programmer has switched it off.
The way to set and use your room thermostat
is to find the lowest temperature setting
that you are comfortable with, and then
leave it alone to do its job. The best way to
do this is to set the room thermostat to a
low temperature – say 18ºC – and then
turn it up by one degree 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 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.
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.
®
What is a room thermostat?
... an explanation for householders

1. Introduction
TRT products are a cost effective
comprehensive range of thermostats and
timers designed for internal use only.
The TRT030 is an electronic room
thermostat, with an easily adjustable dial.
It has optional PID control (which can help
to minimise temperature overshoot), and
adjustable swing (difference between on
and off switching temperatures), from
1ºC to 0.5ºC.
It is designed to be surface mounted on
its supplied wall plate.
The electrical supply must be isolated
before removing the thermostat from the
wall plate.
2. Siting
The TRT030 must be sited where it will not be
influenced by heat sources, for example above
a radiator or a television or in direct sunlight
or subjected to draughts.
The product requires air circulation, so do not
position above or below shelving or other wall
mounted obstacles.
It should be mounted approximately 1.5 meters
above floor level.
3. Installation
This product must be installed in accordance
with the appropriate building and wiring
regulations.
In all cases if there is a doubt as to how to
proceed with an installation consult a qualified
electrician, your local authority’s building
control department or the Timeguard helpline
(020 8450 0515).
The TRT030 is designed to be surface mounted
on the supplied wall plate (Fig. 4).
Always isolate the mains supply before
removing the unit from its wall plate.
Isolate 230VAC mains supply.
Incoming and outgoing wires should be 1.5mmsq.
Contents
TRT030 thermostat
TRT030 instruction
leaflet
TRT030 wall plate
2 x wall plugs
2 x screws
PID
ON OFF
SWING
1.0 0.5
Multiple fixing
holes
Wiring terminals Earth terminal
Swing Jumper
(shown in Swing
0.5 position)
Wall plate retaining screws
(at bottom of TRT030)
PID Jumper
(shown in PID
off position)
Fig. 2
Rear View of TRT030
(without mounting plate)
Stylish design
Easy set dial
Clearly
marked scale
Output LED
Fig. 1
TRT030 Electronic Room Thermostat

4. Operation
Use adjuster dial to set desired temperature.
Blue LED is lit when temperature is below
desired value, indicating that the thermostat is
calling for heat from the boiler. Once the room
reaches the desired temperature the LED turns
off and the TRT030 ceases to call for heat from
the boiler.
The temperature swing can be adjusted between
1°C and 0.5°C by selecting a jumper found on
the rear of the unit (see Fig 2).
We suggest using the 0.5ºC position unless the
boiler turns on and off too rapidly.
PID can also be selected on or off using a
jumper on the rear of the unit (see Fig 2).
To reinstall the unit on the wall plate first
ensure the wall plate retaining screws are
loosened enough to clear the TRT030 body then
engage the top of the TRT030 onto the wall
plate retaining tabs (see Fig 4), and push firmly
downwards and then upwards. There will be
some resistance from the terminals. Once in
place, secure with the retaining screws.
Restore mains to the unit after checking all
system wiring is complete.
Remove wall plate from unit, by undoing
retaining screws (see Fig 2), and pivoting the
bottom of the unit outwards. The TRT030 can
then be lifted off.
Pass the incoming wires through the opening in
wall plate, and fix wall plate securely to the wall,
using the screws provided(and wall plugs if
necessary) provided. The screws which secure the
product to the wall plate should be at the
bottom (see Fig 2).
Allow sufficient excess cable to wire up the unit,
but not too much to make it difficult to close
the unit to the wall plate.
Connect the conductors to the relevant terminals,
according to the wiring diagram on the wall
plate (or Fig. 3 below). Ensure that the curved
brass washer grips the conductor.
N
NO N L
L
Fig. 3
Wiring
Diagram
NO N L
Fig. 4
Back Plate Removed
Alternative
fixing holes
Retaining
tabs
Mount the wall plate in this
configuration only
Product retaining
screws
Terminal for maintaining
continuity of earth
This unit is double insulated, and hence does not
need connection to earth. If earth continuity is
required, please use earth terminal on wall plate.
5. Specifications
Current rating: 10 (2) A
Voltage: 220-240V, 50HZ
Switch type: Single pole, single throw
(SPST)
Operating
temperature range: 0 to 50°C
Set temperature
range: 5 to 30°C
Complies with: BS EN 60730
Conforms to
directives: 73-23-EEC, 89-336-EEC
Temperature
swing: 1°C or 0.5°C
Micro
disconnection: Type 1.B control action
This can help in reducing temperature over-shoot.
We suggest using the PID on position.
To clean use a clean dry cloth only. Do not use
any liquid cleaners.

For a product brochure please contact:
Timeguard Ltd. Victory Park, 400 Edgware Road,
London NW2 6ND Tel: [phone]
or email [email protected]
A Group company
67-058-322
HELPLINE
020-8450-0515
or email [email protected]
For assistance with the product please contact:-
3 Year Guarantee
In the unlikely event of this product becoming
faulty due to defective material or manufacture
within 3 years of the date of purchase, please
return it to your supplier in the first year with proof
of purchase and it will be replaced free of charge.
For years 2 and 3 or any difficulty in the first year
telephone the helpline on
020 8450 0515.