DAYLIFF DQA Installation & Operating Manual - Page 11

Browse online or download pdf Installation & Operating Manual for Water System DAYLIFF DQA. DAYLIFF DQA 16 pages. Circulator pumps

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The Function of each mode
Mode
Mode
Instruction
Automatic Automatic
Min
proportional
PPI
pressure
curve
Max
proportional
PPII
pressure
curve
Min
constant
CPI
pressure
curve
Max
constant
CPII
pressure
curve
III
Speed III
Speed II
II
Speed I
I
The pump adjusts performance automatically when it is
working in the condition of max to min proportional
pressure.
The pump working point changes with the min
proportional pressure according to the flow rate of system
demand. The pump pressure would be lower when the
flow rate decreases, and the pump pressure would be
higher when the flow rate increase.
The pump working point changes with the max
proportional pressure according to the flow rate of system
demand. The pump pressure would be lower when the
flow rate decreases, and the pump pressure would be
higher when the flow rate increase.
According to the flow rate of system demand, the pump
working point changes on the basis of min constant
pressure curve. The constant pressure of pump is
irrelevant with the flow rate.
According to the flow rate of system demand, the pump
working point changes on the basis of max constant
pressure curve. The constant pressure of pump is
irrelevant with the flow rate.
The pump works with constant speed at the basis of
constant curve. In the Speed III mode, the pump is set to
work at the max curve in any working conditions. If the
pump is set at Speed III, it easily wears out quickly.
The pump works with constant speed on the basis of
constant curve. In the Speed II mode, the pump is set to
work at the middle curve.
The pump works with constant speed on the basis of
constant curve. In the Speed I mode, the pump is set to
work at the min curve.
8
Function