GESTRA LRR 1-52, Руководство по установке

Страница: 35 / 44

35
G
Frequency ("interval") of intermittent blowdown
H
Number of intermittent blowdown pulses
Key
I
Pulse for intermittent blowdown
J
Time between intermittent blowdown pulses
Operation
Manual actuation of continuous blowdown valve
Screen display 12
Press button to switch to manual operating mode.
Use the hand slider to change the position of
the continuous blowdown valve. The green
button indicates the valve opening in %. Or
press the green button and enter the desired
valve opening in % in the numberpad.
Switch back to automatic
operation.
Stand-by operation
If 24 VDC is present across the stand-by input, automatic control is deactivated, the continuous blowdown
valve is motored into the CLOSED position and intermittent boiler blowdown is switched off. Screen display 13
appears. During stand-by operation the MIN/MAX limits and the monitoring function remain active.
After the equipment switches back to normal operation, the continuous blowdown valve is motored back
into control position. In addition an intermittent blowdown pulse is triggered off (provided that automatic
intermittent boiler blowdown has been activated and an interval period and pulse duration has been set).
Screen display 13
LRR 1-5.