Tech Controllers ST-979, Руководство пользователя

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TECH
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VI.a.3) Valve type
By means of this setting the user selects the type of controlled valve:
 CH – selected if the user wants to control the CH circuit temperature.
 FLOOR- selected if the user wants to control the temperature of the underfloor heating
circuit. It protects the underfloor heating installation 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.
VI.a.4) Room regulator
This function enables the user to select and configure the operation of the room regulator which
will control the valve.
 Control without room regulator
This option should be selected if the user does not want the room regulator to influence the valve
operation.
 Standard TECH regulator
This option should be selected if the valve will be controller by a room regulator with RS
communication. Once this function is selected, the controller operates according to Room reg
temp lower parameter.
 Proportional TECH regulator
When this type of room regulator is selected, the valve is controlled according to Change in set
temperature and Room temperature difference parameters. 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 RJ (telephone) socket of ST-979 controller using a four-core cable with
appropriate plugs (for RS socket).
 Standard valve regulator
This option should be selected if the valve will be controlled by a two-state room regulator (without
RS communication).
 Room reg temp lower
This function is active only if TECH standard regulator or Standard valve regulator is selected. The
user defines the value of valve temperature reduction which will be performed when the room
regulator reaches the pre-set temperature.
 Room temperature difference
This setting is used to define the single unit change in the current room temperature (with the
accuracy of 0.1°C) at which a predefined change in the pre-set temperature of the valve will be
introduced (function available only with TECH room regulator with RS communication).
Example:
setting: room temperature difference 0,5ºC
setting: change in pre-set valve temperature 1ºC
setting: pre-set temperature of the valve 40ºC
setting: pre-set temperature of the room regulator 23ºC
Case 1. If the room temperature rises to 23.5ºC ( 0.5ºC above the pre-set room temp.), the valve
closes to such an extent as to have 39ºC as the pre-set value (temp. reduction of 1ºC).
Case 2. If the room temperature drops to 22ºC (1ºC below the pre-set room temp.), the valve
opens to such an extent as to have 42ºC as a pre-set value (temp. increase of 2ºC).
 Change in set temperature
This setting determines by how many degrees the valve temperature is to increase or decrease
with a single unit change in room temperature (see: Room temperature difference) This function
is active only with TECH room regulator and it is closely related to the Room temperature
difference parameter
.