MAC12 Control system

MAC12

Control system

The MAC12 constant pressure regulator is used with fans with EC/FC motors. For single-phase motors, MAC12 is used together with add-on module MPR4 or MPR8.
MAC12
MAC12, an ideal pressure regulator for demand control of energy-optimised ventilation solutions
MAC12 has been developed for pressure regulation of fans with EC/FC motor. For single-phase motors, MAC12 is used together with add-on module MPR4 or MPR8.

MAC12 satisfies the requirement for low energy consumption and operational reliability and the option for adapting air changes to the current ventilation needs.

MAC12 has a display with text in several languages, making adjustment and monitoring of the unit easy to understand and to execute. MAC12 also supports external communication, thus permitting the use of remote monitoring.
MAC12

Constant pressure regulator, MAC12

MAC12 controls the start/stop of the fan and maintains the desired pressure. MAC12 can be placed wherever it is most practical - in the technical room or near the fan with a signal to the technical room. MAC12 is supplied as standard with an XTP sensor.

MAC12 can regulate the fan in three different ways:

1. Two preset pressures

MAC12 allows for two preset pressures (high/low), so that ventilation can be adapted to the needs in the system's operating area. The high and low pressures are selected and set individually in the constant pressure regulator via the very simple menu.

Alarm function

MAC12 has a built-in alarm function that is activated and displayed on the screen when the desired pressure is not maintained. There is also a potential-free contact for an external alarm.

In MAC12, the pressure deviation and the duration of the deviation that will trigger the alarm are set. The constant pressure regulator continues to operate during the alarm and will still try to maintain the desired pressure. MAC12 can be connected to a thermal fuse in the fan motor or an alarm signal from the frequency converter. Any alarm on that input is forwarded and the fan stops.

2. External start/stop

MAC12 also has the possibility of external start/stop.

3. Override

MAC12 allows for override to an independent pressure level or max. air volume.

Control of multiple channel systems

MAC12 can control up to 5 parallel single-channel systems. This requires the system to be built exclusively via the modbus interface, so that a correct link between the different pressure sensors and the associated fans can be ensured. Each system is considered an independent system, with its own operating points and control parameters. In this context, an MXTP pressure sensor must be used.

External communication

MAC12 is equipped with a modbus interface for external connection to, for example, BMS/CTS systems. Via the connection, it is possible to read the operating status and make changes to all operating parameters.

References Insulation material Supply voltage Operating range Measurement precision Max. cable length Temperature setting low Temperature setting high Setting range for alarm time Setting range for alarm pressure Alarm switch (max. load)
MAC12 constant pressure regulator  

230 VAC

0-5000 Pa, operating range varying according to range of XTP sensor

   

-45°C til 0°C

-10°C til 15°C

0-1000 Sec

0 - 2500 Pa

Potentialfri skiftekontakt 230VAC/24, 8AAC1/3A AC3

MAC12MOD                    
MXTP, XTP sensor with Modbus

24V AC/DC, 50 mA

-50 - +50 Pa

0 - 100 Pa

0 - 150 Pa

0 - 300 Pa

0 - 500 Pa

0 - 1000 Pa

0 - 1600 Pa

0 - 2500 Pa

1,5% af måleværdi + 0,3% af måleområde + 2,5 Pa

80 m

         
MAC12-XTP XTP SENSOR

24V AC/DC, 50 mA

0-2500 Pa

(-20°C - +40°C). 0,5% af måleværdi + 2,5 Pa

150 m

         
MAC12XTP  

24V AC/DC, 50 mA

-50 - +50 Pa 0 - 100 Pa 0 - 150 Pa0 - 300 Pa0 - 500 Pa 0 - 1000 Pa 0 - 1600 Pa0 - 2500 Pa

1,5% af måleværdi + 0,3% af måleområde + 2,5 Pa

80 m

         
MPR for 1-phase motors, max. 8 A – 230V                    
References Ambient temperature range
MAC12 constant pressure regulator

-30°C - +50°C

MAC12MOD  
MXTP, XTP sensor with Modbus

-30°C - +50°C

MAC12-XTP XTP SENSOR

-30°C - +50°C

MAC12XTP

-30°C - +50°C

MPR for 1-phase motors, max. 8 A – 230V  
References A (mm) B (mm) C (mm) Height (mm) Width (mm) Depth (mm)
MAC12 constant pressure regulator

222

145

55

175

223

55

MAC12MOD

222

145

55

     
MXTP, XTP sensor with Modbus

75

90

55

90

75

36

MAC12-XTP XTP SENSOR

75

90

36

90

75

36

MAC12XTP

75

90

55

90

75

36

MPR for 1-phase motors, max. 8 A – 230V            
References Consumption
MAC12 constant pressure regulator

0.5 W

MAC12MOD  
MXTP, XTP sensor with Modbus  
MAC12-XTP XTP SENSOR  
MAC12XTP  
MPR for 1-phase motors, max. 8 A – 230V  
References Protection rating Power consumption Output signal Max. line fuse (A)
MAC12 constant pressure regulator

IP54

   

13

MAC12MOD        
MXTP, XTP sensor with Modbus

IP54

0,5 W

0 - 10 VDC

 
MAC12-XTP XTP SENSOR

IP54

0,5 W

Modbus

 
MAC12XTP

IP54

0,5 W

0 - 10 VDC

 
MPR for 1-phase motors, max. 8 A – 230V        

Products and accessories references

  • MAC12 constant pressure regulator
    MAC12 constant pressure regulator
  • MAC12MOD
    MAC12MOD
  • MXTP, XTP sensor with Modbus
    MXTP, XTP sensor with Modbus
  • MAC12-XTP XTP SENSOR
    MAC12-XTP XTP SENSOR
  • MAC12XTP
    MAC12XTP
  • MPR for 1-phase motors, max. 8 A – 230V
    MPR for 1-phase motors, max. 8 A – 230V

Documents

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  • MAC12, fitting and configuration
    Manuals
    3 MB