MAC12
Control system
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.
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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |