5
a certain size to have more than 1 heating zone). 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. Also keep
out of direct sunlight.
N.B.
Some thermostats can be used for cooling as well as
heating (SPDT).
Introduction to the ESRTM
This mechanical room thermostat is an economical and
simple to use room thermostat. Simply turn the mechanical
control dial to your desired temperature to control your room
temperature.
This unit also produces an audible “click” when you turn the
dial past the current temperature so you know when the
system is being turned ON or OFF. This mechanical 2 wire
thermostat is very easy to install and having volt free contacts
is suitable for systems with either a combination or normal
boiler. If you have a three wire installation, simply cut back
and make safe the neutral and this two wire thermostat will
give you years of faithful service.
