Grundfos CME Series User Manual

23
English (US)
Guidelines for setting of PI controller
The table below shows the recommended controller settings:
1)
Heating systems are systems in which an increase in pump
performance will result in a rise in temperature at the sensor.
2)
Cooling systems are systems in which an increase in pump
performance will result in a drop in temperature at the sensor.
L1 = Distance [ft] between pump and sensor.
L2 = Distance [ft] between heat exchanger and sensor.
System/application
K
p
T
i
Heating
system
1)
Cooling
system
2)
0.5 0.5
0.1 0.5
0.5 0.5
0.5 -0.5 10 + 1.52L2
0.5 10 + 1.52L2
0.5 -0.5 30 + 1.52L2
0.5 0.5
0.5
L1 < 16.4 ft:
0.5
L1 > 16.4 ft:
3
L1 > 32.8 ft:
5
+2.5 100
p
p
Q
L2
t
L2
ǻW
ǻW
L2
L2
t
ǻS
ǻS
ǻS
L1
L1
ǻS

Grundfos CME Series Specifications

General

Type	Centrifugal Pump
Power Supply	Electric
Maximum Operating Pressure	10 bar
Housing Material	Stainless steel
Impeller Material	Stainless steel
Material	Stainless Steel
Applications	Water boosting, industrial applications, domestic water supply, irrigation, pressure boosting in buildings
Pumped Liquid	Clean water
Approvals	CE
Seal Type	Mechanical Seal
Pressure Rating	PN10