KEY RK-2001W2N, Operation Manual, Page: 3 / 16

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1. Application.
RK-2001W2N controller is a controller designed for temperature control of solid fuel
fired boilers. The temperature of the boiler is kept on level set by the user by
controlling the speed of the blow-in fan. The controller constantly monitors the
temperature of water in the boiler, displays it on the display and controlls the central
heating pump. To enable more precise temperature control of heated rooms the
controller has been equipped with an input for room thermostat connection. The
controller is able to control the pump loading tap water tank. The controller is equipped
with extra programmable multi-functional output, which allows connecting mixing
valve, alarm signal, extra boiler (gas or oil-fueled), emergency cooling system or other
devices turned on simultaneously with blow-in fan.
2. Connection.
Before turning on the controller by master switch, connect controller, fan and the
central heating pump power leads to appropriate sockets in the rear of the controller.
The temperature sensor should be placed in a measurement hole in the boiler.
Picture 2 shows diagram of electrical connection of the controller.
CAUTION! Before plugging in the controller check if the wiring system is properly
grounded and if the terminal screws of the output connector are properly screwed.
CAUTION! Total power of the fan, central heating pump and hot water pump, which
are connected to the controller, musn't exceed 690W.
Outputs of the controller that are not used may remain unconnected.
3. Operation.
After turning the controller 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 plate of the controller (picture 1) consists of:
1 - Master switch
2 - Display, indicating boiler temperature and parameters
3 - Room thermostat indicator
4 - Boiler thermostat knob
5 - Central heating pump indicator
6 - STOP/choose parameters/erase alarms button
7 - START/choose parameters button
8 - Start programming /confirm parameters settings button
9 - Hot water pump work indicator