P.W. KEY RK-2006SPGMS, Руководство пользователя

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7.2 Periodic switching pump – this parameter allows you to run the function
periodic heating pump to move water in the heating circuit. The pump is activated for
30 seconds at intervals set in the parameter TIME PERIOD. ON. PUMP CO. This
function is available when the CO pump mode is set to the value of TERM.
7.3 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.
8.x 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.
8.1 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 disconne-
cted. 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.
AUTO ASH-REMOVAL – in the case not to use the hot water circuit, this output can
be used to auto-ash - the parameters described in the 6.x cleaning mechanism (6.1
cleaning mode hearth CYCLE x K).
8.2 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.
8.3 Increase temperature during domestic water heating – Closing thermostat
contacts means that boiler operation will follow according to the temperature pro-
grammed 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.