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Home : Products : Energy Management : Frese DELTA T Control System

Frese OPTIMA Compact

Technical info

Images, technotes, drawings etc.

Frese DELTA T Control System

The Frese DELTA T Control System is an easy-to-use solution for measuring, monitoring and optimizing the ΔT between the inlet and outlet of a terminal unit, in order to increase the system efficiency and reduce pump energy.

The DELTA T Control System measures and monitors the actual ΔT of the coil.

If the ΔT is equal to or higher than the ΔT set point, the Frese DELTA T Control System will not change the input signal to the actuator and the flow will be according to the BMS input signal.

If the ΔT is lower than the ΔT set point, the Frese DELTA T Control System will lower the input signal to the actuator and thereby decrease the flow through the control valve until the set point ΔT is reached.

The Frese DELTA T Control System can be used in both heating and cooling systems to optimise the inlet and outlet temperature difference of a fan coil unit or air handling unit.

Benefits

Energy saving through the control of ΔT in the system.
Provides optimal efficiency for chillers and boilers.
By reducing the required flow to achieve the system ΔT, additional flow capacity can be released.
Simple installation between the BMS and the 0-10VDC modulating actuator.
Quick and simple to set up.
Can be easily retrofitted to an existing system.

Features

Easy to use buttons for setting the optimum ΔT set point.
Automatically detects whether the Control System is installed in a heating or cooling system.
Temperature sensors can be mounted on a varity of pipe dimensions from DN15 to DN300.
To avoid starving the coil of flow the DELTA T Control System is programmed so it never sends a voltage signal to the actuator of less than 1.5 V. This means that the DELTA T Control System does not close the valve fully even if the measured ΔT is below the set point. The BMS can always close the valve if the signal sent is less than 1.5V.
0-10 V DC feedback signal for monitoring the terminal unit operation.

Præsentation

Downloads

BrochureFrese DELTA T Control System

TechnoteFrese DELTA T Control System

Mounting instructionFrese DELTA T Control System

Frese OPTIMA Compact DN10-DN32

Male/Male (excl. modulating actuator)

1200C, PN25, DZR (Couplings for OPTIMA Compact on page 24)

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

G 53-1300 10 Low flow 2.5 30 - 200 22.40

G 53-1309 10 Low flow 5.0 65 - 370 22.40

G 53-1302 15 Low flow 2.5 30 - 200 25.70

G 53-1310 15 Low flow 5.0 65 - 370 25.70

G 53-1304 15 High flow 2.5 100 - 575 25.70

G 53-1312 20 High flow 2.5 100 - 575 29.90

G 53-1308 20 High flow 5.0 220 - 1330 29.90

G 53-1313 25 5.5 600 - 3600 41.80

G 53-1314 32 5.5 550 - 4000 47.10

Male/Male with 1” P/T plugs (excl. modulating actuator)

1200C, PN25, DZR (Couplings for OPTIMA Compact on page 24)

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

G 53-1320 10 Low flow 2.5 30 - 200 25.70

G 53-1329 10 Low flow 5.0 65 - 370 25.70

G 53-1322 15 Low flow 2.5 30 - 200 28.50

G 53-1330 15 Low flow 5.0 65 - 370 28.50

G 53-1324 15 High flow 2.5 100 - 575 28.50

G 53-1332 20 High flow 2.5 100 - 575 33.20

G 53-1328 20 High flow 5.0 220 - 1330 33.20

G 53-1333 25 5.5 600 - 3600 43.90

G 53-1334 32 5.5 550 - 4000 49.20

Female/Female (excl. modulating actuator)

1200C, PN25, DZR

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

G 53-1342 15 Low flow 2.5 30 - 200 27.10

G 53-1350 15 Low flow 5.0 65 - 370 27.10

G 53-1344 15 High flow 2.5 100 - 575 27.10

G 53-1352 20 High flow 2.5 100 - 575 31.70

G 53-1348 20 High flow 5.0 220 - 1330 31.70

G 53-1353 25 5.5 600 - 3600 42.60

G 53-1354 32 5.5 550 - 4000 47.60

Female/Female with 1” P/T plugs (excl. modulating actuator)

1200C, PN25, DZR

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

G 53-1362 15 Low flow 2.5 30 - 200 30.00

G 53-1370 15 Low flow 5.0 65 - 370 30.00

G 53-1364 15 High flow 2.5 100 - 575 30.00

G 53-1372 20 High flow 2.5 100 - 575 34.70

G 53-1368 20 High flow 5.0 220 - 1330 34.70

G 53-1373 25 5.5 600 - 3600 44.70

G 53-1374 32 5.5 550 - 4000 49.70