background image

www.belimo.eu

S4-CRK24-B1 • en • v1.2 • 06.2016 • subject to changes

1 / 20

Table of contents

Overview of the system 

2

Brief description, Accessories 

3

Technical data sheet

Technical data 

5

Safety notes 

5

Product features 

6

Configuration 

6

Electrical installation 

6

Operation 

7

Functions

Introduction 

9

Function overview  

9

Setpoint determination 

10

Pre-comfort 

11

Energy hold off (EHO) 

11

Chilled ceiling with dew point monitoring 

12

External setpoint shift 

12

External temperature sensor (ai1) 

13

Analogue outputs 

13

Dimensions, installation, commissioning, service

Dimensions [mm] 

15

Mechanical installation 

15

Electrical installation 

15

Design for supply / wire sizing 

16

Commissioning / Power On response 

16

Test and simulation mode 

16

Internal Function test 

17

Simulation control sequence 

17

Product information

CRK24-B1

Temperature controller for 

heated/chilled ceiling systems

Summary of Contents for CRK24-B1

Page 1: ...tion 10 Pre comfort 11 Energy hold off EHO 11 Chilled ceiling with dew point monitoring 12 External setpoint shift 12 External temperature sensor ai1 13 Analogue outputs 13 Dimensions installation com...

Page 2: ...imo eu Heated chilled ceiling applications Single room controller Accessories CRK24 B1 6 way ball valve and rotary actuators EXT K3B2 LR24A MP LR24A SR Diagnostic and setting device ZTH EU Setting for...

Page 3: ...LR24A MP LR24A SR actuator This controller should therefore only be utilised in the actuator in combination with the 6 way ball valve The multitude of override features makes possible an economically...

Page 4: ...4 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...

Page 5: ...2 10 V max 5 mA Norms and Standards Protection class III Safety extra low voltage Degree of protection IP30 EN 60529 Mode of operation Type 1 EN60730 1 Software class A EN 60730 1 EMC CE according to...

Page 6: ...t analogue input ai1 External setpoint shift An external DC 0 10 V signal at the analogue input ai2 can be used to shift the basic setpoint by 0 10 K e g for summer winter compensation The functions a...

Page 7: ...n be started with the mode switch which makes it possible to check the controller including nominal voltage AC 24V The three LEDs status display are used thereby to display the voltage level and the s...

Page 8: ...8 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...

Page 9: ...nt range 15 36 C Operation Mode selection switch AUTO ECO MAX Mode display LED AUTO ECO MAX Setpoint adjustment rotary knob 3 K Inputs Pre comfort Dew point limitation Energy hold off EHO External tem...

Page 10: ...int WA 1 K dead band 3 K Pre comfort Offset cooling Energy hold off fix 15 C building protection fix 40 C building protection Frost fix 10 C without function Setpoint calculation Examples Comfort Pre...

Page 11: ...gy Hold Off EHO Digital input di2 If a local detector e g a window switch has an effect on the digital input di2 and closes the corresponding contact then the room will be regulated in energy savings...

Page 12: ...r 6 way valve Cooling Heating Dew point reached Dew point l V ao1 10 7 3 4 7 2 0 10 33 66 90 100 ao1 heating ao1 cooling Dew point External setpoint shift Analogue input ai2 1 2 5 0 10 V ai2 AC 24 V C...

Page 13: ...e required The simultaneous utilisation of Pre comfort at di1 is possible although in this case a switchover to the internal sensor is made see also Pre comfort As a result the current room temperatur...

Page 14: ...14 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...

Page 15: ...housing to release the pcb 3 Remove the PCB Rotary knob for setpoint adjustment If the rotary knob has been removed proceed as follows a Insert the rotary knob approximately half way and turn it clock...

Page 16: ...oning 1 Assemble the baseplate of the housing and connect the cables see page 15 2 Configure the DIP switches on the printed circuit board according to the required application 3 Assemble the printed...

Page 17: ...d diameter and the transformer sizing Nominal voltage AC 24 V LED status indication Scenario A Scenario B Scenario C MAX red flash flash permanently on ECO orange flash flash permanently on AUTO green...

Page 18: ...18 20 S4 CRK24 B1 en v1 2 06 2016 subject to changes www belimo eu CRK24 B1...

Page 19: ......

Page 20: ...73 info belimo de www belimo de At no charge Orders Tel 0711 1 67 83 83 Technical Consultation Tel 0711 1 67 83 84 Fax 0711 1 67 83 73 Personal consultation with Regional Sales Director in Berlin Hano...

Reviews: