7
6.1. Pressure fan work parameters.
Fan power [Π100]
- this value defines power of the fan. When „Πr” parameter is set to
„0-10” this is the maximum power of the fanwhich can be achieved during automatic
fan control.
Minimum fan power [n 40]
- lowest fan power which can be used when automatic
fan speed control is on and when fan speed is gradually increased during boiler start.
Fan speed decrease coefficient [Πh10]
- this parameter influences the way fan
speed is reduced when boiler tremperature is approaching its desired value. E.g.
setting this parameter to 2 means that when the controller is in WORK mode and
boiler temperature is 2°C lower than desired boiler temperature the fan will work with
its maximum power [Π100]. Further increase of boiler temperature will cause fan
speed to be reduced gradually to its minimum power [n 40].
Automatic fan speed control [Πr 1]
- it is on, when this parameteris set to „0-10” and
causes automatic fan speed decrease when temperature of water in the boiler reaches
desired temperature.If this parameter is set to „-”, the fan automatic smooth speed
control is disabled and the fan can work with power set by „Π” parameter. Setting
parameter value in range from 0 to 10 means time in minutes of the smooth fan speed
increase from 40% to value of „Π” for smooth boiler start.
Fan work time [Πn 5]
- time of turning the fan on for a while, to remove accumulated
gases. Setting the parameter to „-” turns this function off. This function can be active in
WORK mode.
Fan pause time [Πu 6]
- time between fan work periods
Fan work time in manual mode [Πd 3]
– this parameter defines how long the fan will
work when started manually. Setting this parameter to „--” will disable manual fan
operation.
6.2. Central heating pump parameters.
Central heating pump launch temperature [P 65]
- temperature of water in the
boiler, which causes
start of the circulating pump. Circulating pump works
independently from the control process and is launched additionally in case of boiler
overheat.
Central heating pump hysteresis [Ph 5]
- this parameter defines what value should
temperature decrease by, below circulating pump launch temperature, to turn the
pump off.
Central heating pump work mode [Pr 1]
- central heating pump, independently of
work mode, is always turned off when boiler temperature drops below temperature set
with
[P 65]
parameter and is always turned when boiler temperature exceeds 90°C,
boiler is overheated or boiler temperature sensor is damaged. In remaining cases,
central heating pump works in mode set with
[Pr ]
parameter:
