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1. Application.
RK-2001AT2 controller is a device designed for temperature control of solid fuel
fired boilers. The temperature of the boiler is kept on level set by user, by controlling
the speed of the pressure fan. The controller monitors temperature of water in the
boiler, displays it on the display, and controlls circulating pump. The controller has
been equipped with additional thermostat and sensor input. This thermostat can be
used to set room temperature or desired exhaust gas temperature. Depending on
chosen solution, room temperature sensor or exhaust gas temperature sensor should
be connected to the additional sensor input. The device also design allows for
connecting external contact thermostat instead of room temperature sensor.
2. Connection.
Before turning on the device by master switch, connect controller, pressure fan and
circulating pump power cords to appropriate sockets in the rear of the controller.
Temperature sensor should be placed in measurement hole in the boiler. Picture 2
shows diagram of electrical connection of the device.
WARNING!
Before plugging the device to the power source check if it is proprerly
grounded and if the screws of the connector are properly screwed.
CAUTION!
The maximum total power of devices connected to the controller mustn't
exceed 450W.
CAUTION!
As additional option you can connect the UM-1 module to the controller
that allows controlling the additional boiler or the hot water loading pump. It is
necessary to protect the power supply of these devices with suitable cut-outs.
Not used power outs of the controller may remain unconnected.
3. Operation.
After turning the device on, all the elements of the display are lit for a while to check
if they are working properly. The controller, when power appears, returns to its last
state before turning off or power loss.
Front of the device (Picture 1) consist of:
1 - Master switch,
2 - Display, indicating boiler temperature and parameters,
3 - Room thermostat or exhaust gas thermostat indicator,
4 - Boiler thermostat knob,
5 - Additional thermostat knob,
6 - STOP/choose parameters/erase alarms button,
7 - START/choose parameters button,
8 - Start programming in service mode/confirm settings button,
9 - Circulating pump indicator,
