Grundfos TPE3 - Constant pressure; Constant temperature; Constant differential pressure; Constant flow rate

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English (US)
In systems with a fixed system characteristic.
Examples:
• one-pipe heating systems
• boiler shunts
• systems with three-way valves
• domestic hot-water circulation.
You can use FLOW
LIMIT
with advantage to control the maximum circulation flow.
Constant temperature and constant
differential temperature
If you install an external controller, the pump is able to change from one constant curve to
another, depending on the value of the external signal.
You can also set the pump to operate according to the maximum or minimum curve, like an
uncontrolled pump:
• You can use the maximum curve mode in periods in which a maximum flow is required.
This operating mode is for instance suitable for hot-water priority.
• You can use the minimum curve mode in periods in which a minimum flow is required.
This operating mode is for instance suitable for manual night setback if you do not want
Automatic Night Setback.
Constant curve
In systems requiring a constant flow, independently of pressure drop.
Examples:
• chillers for air-conditioning
• heating surfaces
• cooling surfaces.
Constant flow rate
In systems requiring a constant tank level, independently of the flow rate.
Examples:
• process water tanks
• boiler condensate tanks.
Constant level
In systems with pumps operating in parallel.
The multipump function enables the control of single-head pumps connected in parallel (two to
four pumps) and twin-head pumps without the use of external controllers. The pumps in a
multipump system communicate with each other via the wireless GENIair connection or the
wired GENI connection.
"Assist" menu
"Multi-pump setup"
System application Select this control mode
H
Q
H
Q
Q
set
H
Q
H
Q