TPE Series
2000 pump
s
TPE E-circulators
8
15
Differential proportional pressure
TPE Series 2000 pumps are factory-set to proportional
pressure. We recommend proportional pressure con-
trol in systems with relatively large pressure losses as
it is the most economical control mode.
TPE Series 2000 pumps set to proportional pressure
control continuously adjust the pump head to the
system water requirement.
The charts below show possible control modes of TPE
Series 2000 pumps in different applications.
Control options
Communication with TPE Series 2000 pumps is
possible via:
• a central building management system
• remote control (Grundfos R100) or
• a control panel.
The purpose of controlling TPE Series 2000 pumps is
to monitor and control the pressure.
For further information on control options of TPE
pumps, see page 20.
Pump selection guidelines
Differential proportional pressure control
TPE 2000 pump operating range in differential pres-
sure control mode is between 3/4th of the maximum
head (shut off) to 1/4th of the maximum head. Select
pump to operate within this range when pump is run-
ning full load speed. With differential proportional con-
trol, pump will follow a straight line between set point
and and half of the set point at closed valve as shown
below.
Constant differential pressure control
The setting range for constant pressure control is
between maximum head to 1/8th of the maximum
head.
Control mode
Application
Differential proportional pressure
Systems with two-way valves
- the head against closed valve is half the
setpoint.
Differential constant pressure
Systems with two-way valves.
Constant curve
Single-pipe heating system.
Systems with three-way valves.
Heating and cooling surfaces.
Chiller pumps
T
M
03
36
70
06
06
TM
03
36
71
06
06
H
Q
Q
0
1
2
3
4
5
5
4
3
2
1
0
Q
Q
H
E-circulator.book Page 15 Friday, October 7, 2011 4:01 PM