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10. Room controller – the option is used to define the room controller type to
operate with the valve. The following options are available:
Off – State of the room controller has no impact on the valve settings.
o
Standard controller – A two-state controller. This setting applies to the
o
controller connected directly to the valve control module (ST-61) for external
valves (valve 1 & 2). For internal valve, in turn, the setting applies to the
controller connected directly to ST-450zPID controller.
TECH controller– Controller with RS communication function.
o
Proportional control – Available only with TECH controllers with RS
o
communication. It operates properly after configuration of the preset valve
change option and the difference in room temperatures.
Room temperature reduction – Once the room controller has reached
•
the preset room temperature, the preset valve temperature will drop by the
value indicated here. (The option is unavailable if Proportional control has been
selected).
Change of the valve presetting – The setting determines the number of
•
degrees the valve temperature will rise or drop with a unit change of the room
temperature (see: Room temperature difference). The function is active only
with TECH room controller and is directly related to "Room temperature
difference" parameter.
Room temperature difference – The setting determines the unit change in
current room temperature (accurate to 0.1°C) which triggers the predefined
change in the valve preset temperature (The function is active with TECH room
controller only).
11. Factory settings
This parameter allows you to restore the mixing valve settings saved by
the manufacturer. By restoring the factory settings you will not change the
valve type setting (central heating or floor type).
III.5. Valve 1
NOTE: Control with an additional valve (1 or 2) is only possible after you
purchase and connect the controller to an additional control module (ST-61),
ST – 450 z PID
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