Tech Controllers EU-801 PID User Manual page 16

6.1.1.1 VALVE STATUS
With this option the user may enable or disable the valve.
6.1.1.2 PRE-SET TEMPERATURE
This parameter defines the desired temperature which the valve should maintain. During proper operation, the temperature of
water downstream of the valve approaches the pre-set value.
6.1.1.3 OPENING TIME
This parameter defines the time needed for the valve to open from 0% to 100% position. This value should be set in accordance
with the specification given on the rating plate of the valve actuator.
6.1.1.4 VALVE TYPE
This option enables the user to choose the type of valve to be controlled:
•
CH - select if you want to control the temperature of the CH circuit with the use of valve sensor. The valve sensor
should be installed downstream of the mixing valve on the supply pipe.
•
FLOOR - select if you want to control the temperature of the underfloor heating circuit. It protects the underfloor
heating system against dangerous temperature. If the user selects CH as the valve type and connects it to the
underfloor heating system, the fragile floor installation may be damaged.
6.1.1.5 ROOM REGULATOR
This submenu is used to select and configure the parameters of the room regulator which is to control the valve.
BUILT-IN
VALVE, VALVE
1,2
6.1.1.5.1 Room regulator
Control without room regulator– when this option is active, the room regulator does not influence the valve operation.
•
Control without room regulator– when this option is active, the room regulator does not influence the valve operation.
•
Standard regulator – this option should be selected if the valve will be controlled by a two-state room regulator
(without RS communication).
•
TECH RS regulator – select this option if you connect a room regulator with RS communication. Such a regulator
enables the user to view current CH boiler parameters and change certain settings e.g. pre-set CH boiler temperature or
pre-set DHW temperature.
•
RS proportional regulator – activating this room regulator enables the user to monitor current temperature of CH
boiler, water tank and the valves. The regulator should be connected to the RS port of the controller. When this type of
room regulator is selected, the valve is controlled according to Change of pre-set valve temp. and Room temperature
difference parameters.
6.1.1.5.2 Room reg. temp. lower
NOTE
This parameter concerns Standard regulator and TECH RS regulator functions.
The user defines the temperature value by which the pre-set CH boiler temperature will be reduced when the pre-set room
regulator temperature is reached.
Temperature reduction will not be lower than the minimum pre-set CH temperature.
Room regulator
Room reg. temp. lower
ROOM
REGULATOR
Change of pre-set temperature
Room temperature difference
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