Do not restore the mains supply to the system until all
associated items are fully installed.
NOTE: All electrical installation work should be carried out by a
suitably qualified Electrician or other competent person. If you
are not sure how to install this programmable thermostat consult
either with a qualified electrician, heating engineer or your
boiler / heating system supplier for advice on how to continue.
Do not remove or refit the ERT50 wiring without the
mains supply to the system being isolated.
SETTING MODES
When the ERT50 is first powered up, the Start Up Display
will be shown.
Basic Settings
Many of the ERT50 configuration and operating settings
can be changed here. Press any key to turn on the
backlight, press CANCEL key, press and hold the SELECT
and CANCEL keys together to enter program setting press
+ or - key to "Basic Setting", and press SELECT.
To change any of the basic settings, press the SELECT this
will access the Program/Basic settings menu.
Use the PLUS (+) or MINUS (-) keys to choose the item you
want to change and press the SELECT key to change to the
setting menu for that item. Pressing the CANCEL key will
exit from this menu and return you to the previous menu.
ERT50 INSTRUCTION MANUAL
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