Timeguard TRT035 User Manual
Battery Powered
Electronic
Programmable
Room Thermostat
Cat. No. TRT035
Operating & Installation Instructions
What is a programmable room thermostat?
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set
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S ET ROOM TEMP
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...an explanation for householders
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 boiler and radiators.
Neither does the setting affect how quickly the room cools
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 adjustments above these
settings 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.
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.
1. Introduction
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TRT products are a cost effective
comprehensive range of thermostats and
timers designed for internal use only.
The TRT035 is a battery powered
electronic programmable room
thermostat, with 6 different temperature
periods per day, automatic summer/
winter time changeover, weekday/weekend
(5-2) or individual day (7) programming
and a frost mode. It has optimum start
turning on earlier for colder mornings and
adjustable span (difference between
on and off switching temperatures),
from 1ºC to 0.5ºC.
It is designed to be surface mounted
on the wall plate supplied.
The electrical supply must be isolated
before removing the thermostat from
the wall plate.
TRT035 Electronic Thermostat
Day of
week
Flashing
when frost
protection
is on
Fig. 1
Time of day
(programme
time during
setting)
Temperature
override
Shows when
demanded
heat is
Room temperature
display
(set temperature
displayed flashing
during setting)
Flashing symbol,
battery change
required
Selects
current set
temperature
and changes
date, time and
temperature
Operates
frost
protection
TRT035 Electronic Thermostat
Button illuminates
when pressed and
for 5 seconds after
release
AM PM
Initiates programme
setting sequence and in
conjunction with the select
button initiates time and
date setting sequence
Fig. 1a
Border illuminates
when +/- buttons
are pressed
and for 5 seconds
after release
S ET ROOM TEMP
Reset
button
Selects time,
temperature
or date to
be changed
select
set
reset
Programme
access flap
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