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Temperature regulating unit
for heating and cooling

series 152

Product range

Code 152650

Temperature regulating unit for heating and cooling with pump UPS 25-60

Code 152651

Temperature regulating unit for heating and cooling with pump UPS 25-80

Code 151000

Room thermostat and indoor sensor

Technical specification

- Materials: - body:

grey cast iron GG19

- hydraulic seals:

EPDM

- insulation shell:

PPM

- Mixing valve:

4-way

- Medium:

water, glycol solutions

- Max percentage of glycol:

30%

- Working temperature range:

5÷60°C

- Max working pressure:

6 bar

- By-pass regulating range:

0,05÷0,5 bar

- Thermometer scale:

0÷60°C

- Primary and secondary circuit connections:

1” F with union

- Servomotor: electric supply:

230V 50 Hz

rating:

10 VA

cycle time:

240 s

torque:

10 N·m

- Grundfos pump:

cod. 152650

model UPS 25-60

cod. 152651

model UPS 25-80

- Max ambient relative humidity:

95%

- Ambient temperature:

0÷40°C

- Protection class:

IP 42

Head available at regulating unit connections

Power consumption

CALEFFI

01088/03 GB

Function

The temperature regulating unit is designed to guarantee the
correct contribution of heating energy required by the user, by
measuring the outside and room temperature values to regulate the
correct system flow temperature for either heating or cooling.

It is supplied complete with:
4-way mixing valve, servomotor, pump, flow temperature sensor,
outside temperature sensor, system temperature return sensor,
cooling surface humidity control sensor, temperature controller, flow
and return thermometers, unions for connecting to the primary and
secondary circuits, with preformed shell insulation.
The unit is designed for connection for remote data transmission.
This unit solves the problems of installation of regulating
components in modern small and medium-sized systems, due to its
compact size and ease of use.

The unit is factory set for use with underfloor heating systems.

6

5

4

3

2

1

0

H (m w.g.)

Q (m

3

/h)

6

5

4

3

2

1

0

6

5

4

3

2

1

0

H (m w.g.)

Q (m

3

/h)

1

2

3

1

2

3

UPS 25-60

code 152

650

UPS 25-80

code 152

651

6

5

4

3

2

1

0

3
2
1

0,45
0,30
0,17

100

65
35

1800
1100

700

I

(A)

(W)

(rpm)

P

n

1,13
1,04
0,69

250
220
140

2450
1500
1000

Speed

I

(A)

(W)

(rpm)

P

n

Speed

3
2
1

Summary of Contents for 152 Series

Page 1: ...88 03 GB Function The temperature regulating unit is designed to guarantee the correct contribution of heating energy required by the user by measuring the outside and room temperature values to regul...

Page 2: ...25 60 code 152651 GRUNDFOS UPS 25 80 04 Differential by pass valve with graduated scale 05 Flow temperature sensor 06 Outside temperature sensor connected via terminal 07 Circuit flow and return therm...

Page 3: ...personal control of the operation of the system If this value matches the setting on the main printed circuit board item 6 PCB the regulation complies with the calculation criteria given by the chara...

Page 4: ...actory setting 18 C An outside temperature higher than the set value will cause the following state circulator OFF and mixing valve closed An outside temperature 4 C higher than the set value will cau...

Page 5: ...the primary It can be used to shut down the pump of the primary circuit or the boiler 10 UR Relative humidity sensor wiring This sensor is used to detect the limiting value of relative humidity to pr...

Page 6: ...imit sensor Safety If the flow or outside sensor shows an ohm resistance value outside its working range damaged or disconnected sensor the following operating state is automatically activated Pump OF...

Page 7: ...rence between the actual room temperature measured by the thermostat and the set temperature produces an amplified effect in relation to that produced by a similar variation in the outside temperature...

Page 8: ...ics power supply 230 V 50 Hz rating 10 VA cycle time 240 s torque 10 N m Pump UPS 25 80 By pass valve with regulating scale from 0 05 channel clock for daily weekly programming Flow temperature sensor...

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