P.W. KEY rt-208gt, Руководство по эксплуатации

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10. Boiler alarms.
Select the "Boiler alarms" function in the menu to set the maximum boiler
temperature (temperature of overheating) and the minimum one (shortage of fuel
temperature). When the boiler water temperature rises above the maximum
programmed temperature, the alarm will be turned on - the boiler temperature
indicator and the display will start to blink. The situation will repeat as well when the
boiler water temperature lowers below the minimum programmed temperature. A
sound device, activated by the alarm, can be connected to the controller.
11. Connect to driver.
The function allows the user to connect the controller to the boiler driver and handle
all the boiler parameters with the room controller. The boiler driver display is shown
on the controller's screen - that is how all the boiler parameters can be regulated
without necessity of visiting the boiler room.
CAUTION! To cancel the connection with the boiler driver, press the day/night mode
of work button and then the MENU button.
12. Parameters of connection.
They are the parameters that should be set to properly connect with the boiler driver.
CAUTION! The connection parameters of the room controller must be
equivalent with the data transmission parameters of the boiler driver.
Device number - 1..247 – allows to determine the number of device assigned to the
driver and to avoid malfunction when a number of devices are connected to the bus.
Speed - channel speed – selection of RS-485 transmission speed. All the
connected devices should have the same parameters set. Recommended speed of
115200; the speed can be changed unless no errors in transmission occur.
Mode - frame layout – allows to define data frame layout used in RS-485
transmission.
Thermostat number VT1-VT4, MIX1-MIX4 – depending on whether the boiler driver
controls one or two central heating systems, four room thermostats can be
connected to each system.