KEY RK-2006LP, Руководство по эксплуатации, Страница: 26 / 40

26
5.6. Setting domestic water pump parameters.
The controller offers an additional function for heating of domestic water. Not every
heating system is provided with domestic water tank and charge pump, this circuit
may be switched off or used for control of the pump that mixes the return water in
the boiler.
Domestic water path - if „NONE” is selected the domestic water pump is off. In this
case temperature sensor input and pump control output may remain disconnected.
Selection of „EXISTS” setting provides for interlock release of all parameters and
functions related to domestic water path handling. Election of „MIXING PUMP”
setting will switch domestic water in the circuit purposed for control of the mixing
pump. In this case return water temperature sensor shall be connected instead of
domestic water sensor, and the mixing pump instead of charge pump of domestic
water tank.
H O T W A T E R P A T H
E X I S T S
Domestic water heating hysteresis - this parameter indicates water temperature
drop in the tank in relation to the programmed setting (so that charge pump was
switched on). This setting is available, if domestic water path „EXISTS” setting was
selected.
H W H E A T I N G
H Y S T E R E S I S 5 c
Increase temperature during domestic water heating - Closing thermostat
contacts means that boiler operation will follow according to the temperature
programmed with the thermostat knob. If domestic water tank heating is necessary,
the desired boiler temperature is higher in relation to the desired domestic water by
the selected value in this setting. In case of simultaneous operation of the room
thermostat and domestic water tank heating, the controller operation will follow to
maintain the higher boiler temperature. This setting is available, if domestic water
path „EXISTS” setting was selected.
I N C R E A S E T E M P . O N
H W H E A T I N G 5 c
Domestic water pump work extension - quick switching off of the pump refilling
domestic water tank may result in excessive rise of boiler temperature. This
parameter enables switching on of domestic water pump extension. This setting is
available, if domestic water path „EXISTS” setting was selected.
H W P U M P W O R K
E X T E N S I O N Y E S