KEY RK-2006LSPz, Operation Manual

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C H P U M P W O R K
M O D E A U T O
Central heating (CH) pump periodic switching on - this parameter enables
periodic operation of central heating pump and water transfer in the heating circuit.
The pump is activated periodically every 30 seconds according to selected time in
„CH pump periodic work” setting. This function in available, if „THERMOSTAT” was
selected in CH pump work mode
C H P U M P P E R I O D I C
W O R K Y E S
CH pump periodic work time - this parameter is available, if CH pump works in
„THERMOSTAT” mode and the function of CH pump periodic work is active. The
programmed setting will specify the time lapse between CH pump work, in case of
opened contacts of the room thermostat.
C H P U M P P E R I O D I C
W O R K T I M E 2 m i n
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