Installation manual

67
Your thermostat includes an optional optimum start
control. This feature allows you to set the time at which
you require a room temperature by.
The thermostat then calculates how soon before the event
time the system must be turned up to ensure that the
room is at the temperature by the required time.
A full description of this and how to enable it and
set it up is given in User Advanced Programming,
steps 12 & 13, (page 68).
When this function is active, the set temperature
will flash on the display
Optimum start control (OSC)
When batteries are low a
battery symbol will appear on
the display. You have 15 days
to replace the batteries before
the unit shuts down. When
replacing batteries ensure that
IMPORTANT: After replacing the batteries press and
release the RESET button to restart the unit. All date,
time, programming and override settings are
maintained for the life of the product.
Battery replacement (battery models only)
Press and hold ˆ and PROG for 3 seconds. This will take
you into User Advanced Programming. Use + and - keys to
scroll backwards and forwards between options then ‡ &
ˆ keys to change option settings.
User Advanced Programming Options
To access User Advanced Programming
Important: The thermostat has been set in the factory to suit most situations, however, there are additional
optional settings which can improve the comfort, convenience and energy effectiveness of your thermostat.
These are set in the User Advanced Programming and Installer Advanced Programming modes.
The flashing digit on the right hand of the display
indicates the number of the selected option.
Option 3 - Calendar clock rules
This establishes the rules that the
automatic calendar clock follows to
calculate changes between summer
and winter time. Press + until Option
3 is displayed, use ‡ & ˆ to select
required setting
Setting 0 Disabled.
Setting 1 Manual: user must change using + to
advance and -retard displayed time.
Setting 2 European rules. (Factory Setting)
Setting 3 USA rules (2007 onwards)
Setting 4 USA rules (pre-2007)
Option 1 - Enable or disable A/B programming
(option 41 set to 5+2)
This enables or disables the A/B
programming option. Press + until
Option 1 is displayed, use ‡ & ˆ to
select required setting.
Setting 0 Disabled, unit operates as 5+2 or 24
hour product depending on installer
settings (factory setting)
Setting 1 Enabled: activates A/B programming
Option 4 - Time zone offset
This feature allows the time zone to be
established and corrects time display.
Press + until Option 4 is displayed,
use‡ & ˆ to select required setting
Setting 0 UK models: this feature should be left
at the factory setting of 0.
Setting 1 Central European time models: this
feature should be left at the factory
setting of +1:00.
-12 Hours +14 Hours. Rest of World: use ‡ & ˆ keys to
select offset from Universal time (GMT) for the location in
which the thermostat is being installed.
Option 10 - Frost/ thermostat mode setting
This feature allows the default frost/
thermostat mode temperature to be set.
Press + until Option 10 is displayed,
use ‡ & ˆ to select required setting.
5-40°C - Factory setting is 5°C, but can be changed to any
value between 5-40° C.
Programmable room stat