Content
Safety Instructions
3
EU-Conformity
General instructions
Explanation of Symbols
Changes to the Unit
4
Warranty and Liability
Disposal and Pollutants
Description MHCC
5
About the Controller
Scope of supply
Specifications
6
Hydraulic Variants
7
Installation
8
Electrical Terminals
RC21 Remote adjuster with thermostat
9
Settings
Temperature Sensors
Wall Installation
10
Electrical Connection
Installing the Temperature Sensors
11
Temperature Resistance Table for Pt1000 Sensors
Operation
12
Display and Input
Commissioning help
13
1. Measurement values
2. Statistics
Today
14
28 days
Operating hours
Error messages
Reset / Clear
3. Times
Time & Date
Daylight saving time
Heating Circuit (Day)
Heating Circuit Comfort
4. Operating mode
15
Manual
5. Settings
Operating mode
S/W Day
S/W Night
Curve
Day Correction
16
Night Correction
Comfort Temperature Boost
Heating Circuit Reference
Max. Flow
Turn off HC
17
Heat request
Eco mode (during solar charge)
Reference/Actual -
14-day Reference
6. Protective Functions
18
Seizing Protection
Frost Protection
Min. Flow
Discharge Protection
7. Special Functions
19
Sensor Calibration
Commissioning
Factory Settings
Mixer
Turn Time
Pause Factor
Increase
Room Controller heating circ. (X)
Eco Display Mode
20
Network
Access Control
Ethernet
CAN bus ID
21
8. Menu Lock
9. Service values
10. Language
Malfunctions/Maintenance
22
Additional Information
23
External relay at signal output V(X) (0-10V / PWM)
CAN bus
Tips
Page 1: ...Heating Controller MHCC Weather compensated heating circuit controller Installation and operating instructions Read carefully before installation commissioning and operation...
Page 2: ...14 Daylight saving time 14 Heating Circuit Day 14 Heating Circuit Comfort 14 4 Operating mode 15 Manual 15 5 Settings 15 Operating mode 15 S W Day 15 S W Night 15 Curve 15 Day Correction 16 Night Cor...
Page 3: ...er Technical Data The valid accident prevention regulations VDE regulations the regulations of the local power utility the applicable DIN EN stand ards and the installation and operating instruction o...
Page 4: ...t has been manufactured and tested with regard to high quality and safety requirements The unit is subject to the stat utory guarantee period of two years from the date of sale The warranty and liabil...
Page 5: ...tatistical graphics l Extensive setting menus with explanations l Menu block can be activated to prevent unintentional setting changes l Resetting to previously selected values or factory settings Sco...
Page 6: ...clemp voltage output Max load by external devices 24V 2W Max cable length Pt1000 sensor 10m CAN 3m at 3m a shielded twisted pair cable must be used Isolate shielding and connect it to the protective...
Page 7: ...to be complete Under no circumstances should the controller replace any safety devices Depend ing on the specific application additional system and safety components such as check valves non return v...
Page 8: ...voltage output 24 V DC voltage output for external devices Max load by external devices 24V 2W Terminal Connection for N Pump R1 Pump N Mains phase conductor L Mains phase conductor N Neutral Mixer R2...
Page 9: ...d by the controller If the settings in the controller allow it the sensor is used to alter the flow temperature The switch changes the operation mode of the controller In Timer mode the temperature is...
Page 10: ...igure 2 and connect electrical system to the controller 4 Suspend clip room cover again and close with the screw 5 Turn on mains supply and operate the controller Electrical Connection Before working...
Page 11: ...area to be measured Only use immersion pipe mounted or flat mounted sensors suitable for the specific area of application with the appropriate permissible temperature range Low voltage cables such as...
Page 12: ...flashes quickly red when an error is present Entries are made using 4 keys 3 4 to which contextual functions are assigned The esc key 3 is used to cancel an entry or to exit a menu If applicable a re...
Page 13: ...llowing pages and check if further settings are necessary for your application 1 Measurement values Serve to display the current measured temperatures If error appears on the display instead of the me...
Page 14: ...for time date and operating times for the heating circuit The associated temperature reference values are specified in Menu 5 Settings Time Date Serve to set the current time and date For system data...
Page 15: ...ating mode Heating Automatic Normal mode using the set times Reference Value Fixed flow temperature regardless of the outdoor temperature The desired flow temperature must be set in Menu 4 3 14 days r...
Page 16: ...g hours because with certain outdoor tem peratures the building might not be optimally heated with the set heating curve With a non optimised heating curve the following situations frequently occur ho...
Page 17: ...ture of 48 C or 4 8V 43 C corresponds to 4 3V 0 5V offset 4 8V corresponds to 48 C CAN Request is made via the CAN bus the heat request must be activated switching or modulating on a controller in the...
Page 18: ...ion off or setting the minimum flow temperature too low can lead to severe damage to the system Min Flow The minimum flow temperature is the lower limit of the heating curve and by this the reference...
Page 19: ...to its delivery state All of the controller s parametrization statistics etc will be lost irrevocably The controller must then be commissioned once again Mixer Here individual parameters for mixer con...
Page 20: ...e expert menu under Network Choose the Room Controller with the CAN Bus ID of the corresponding controller Eco Display Mode In Eco Display Mode the backlight of the display is switched off if no butto...
Page 21: ...main completely accessible despite the menu lock being activated and can be used to make adjustments if necessary 1 Measurement values 2 Statistics 3 Times 8 Menu lock 9 Service values 9 Service value...
Page 22: ...ecialist Sensor x defective Means that either the sensor sensor input on the controller or the connection line is or was defective see Temperature Resistance Table for Pt1000 Sensors on page 11 Restar...
Page 23: ...rollers in this connection in series must be fitted with terminating resistance The wiring of the two CAN sockets is arbitrary 3 Optionally the data logger can also be connected to the CAN bus Tips Th...
Page 24: ...ation cannot be excluded Subject as a basic principle to errors and technical changes Date and time of installation Name of installation company Space for notes Your specialist dealer Manufacturer SOR...
