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DETECT

 IAQ a

Instructions for Use

20220705

The document was originally written in Swedish

Symbol explanation

Symbols on the machine.

This product complies with applicable EU 
directives.

Symbols in this user manual

Warning/Caution!

Application area

DETECT IAQ is a controller that has been designed to 
detect, check, measure and control carbon dioxide accu-
mulations and temperature in room areas or ventilation 
ducts.
The product may not be used for anything other than its 
intended use.

General

Read through the entire instructions for use before 
you install/use the product and save the instruc-
tions for future reference. It’s not permissible to 
make changes or modifications to this product 
other than those specified in this document.

Protective equipment

Always use appropriate personal protective equip-
ment for the work in question, in the form of gloves, 
respirators and protective glasses during handling, 
installation, cleaning and service/maintenance.

Electrical safety

Permitted voltage, see “Electrical data”. It is not 
permissible to insert foreign objects into the product’s 
contactor connections or the electronics's ventilation 
openings; risk for short circuiting.

24 V isolation transformer to be connected should comply 
with the provisions of IEC 61558-1.
Cable sizing must be carried out for cabling between the 
product and the power supply source.
Disconnect the power supply when working on products 
that are not required to run in production.
Always follow the local/national rules for who shall be 
permitted to carry out this type of electrical installation.

Handling

•  The product must be handled with care.

Installation

•  Moist, cold and aggressive environments must be 

avoided.

•  Avoid installing the product near a heat source.
•  Assemble the product according to applicable industry 

regulations.

•  Install the product for easy access during service/ 

maintenance.

•  If the product is mounted above a fixed ceiling, the 

inspection hatch must be located so that the product is 
accessible for inspection.

•  Check to make sure that the product doesn’t have any 

visible defects.

•  Check that the product is properly secured after it has 

been installed.

•  Check that all cables are properly secured in place after 

installation.

Summary of Contents for DETECT IAQ a

Page 1: ...cal data It is not permissible to insert foreign objects into the product s contactor connections or the electronics s ventilation openings risk for short circuiting 24 V isolation transformer to be connected should comply with the provisions of IEC 61558 1 Cable sizing must be carried out for cabling between the product and the power supply source Disconnect the power supply when working on produ...

Page 2: ...aughts or temperature differences caused by external walls DETECT IAQ Da CO2 TEMP MB is installed in a ventilation duct Figure 1 Recommended installation in a room or duct 1 5 1 8 m DETECT IAQ Da CO2 TEMP MB DETECT IAQa CO2 TEMP MB DETECT IAQ OCSa CO2 TEMP MB Figure 2 Dimensions DETECT IAQa CO2 TEMP MB and DETECT IAQ OCSa CO2 TEMP MB 87 mm 86 mm 33 mm Figure 3 Dimensions DETECT IAQ Da CO2 TEMP MB ...

Page 3: ...les for example by using more strands to guarantee a reliable measurement signal Calibration ABCLogic Automatic Background Calibration Logic is a patent protected technology for self calibration The ABC Logic method eliminates possible long term drift The ABCLogic method can be used when the CO2 content falls at least twice within a week to a level of approx 400 ppm For this reason ABCLogic is eff...

Page 4: ...O2 Setpoint 500 CO2 Propor band P Control mode Cont PI TEMPERATURE Control mode 300 Integr time s 22 0 C Setpoint 2 0 C Propor band P Control mode Cont MAXIMUM CTRL PI Control mode 300 Integr time s P Control mode 700 CO2 Setpoint 500 CO2 Propor band 22 0 C Setpoint 2 0 C Propor band M OK OK 5 s OK INFO 1 0 0 VERSION no RESET Measurement Modbus menu Calibration menu Output menu PIR menu Controller...

Page 5: ...m Adjusting the temperature value is performed in steps of 0 1 C The DETECT IAQa TOOL tool s display shows how much the relevant value has been adjusted Note The adjustment value for CO2 is not reset when the ABCLogic calibration is turned on or off OK M OK OK OK CALIBRATION Offset CO2ppm 0 On ABC logic 0 0 Offset C Modbus address OFF 1 247 Modbus speed kbit s 9 6 19 2 38 4 56 0 57 6 76 8 115 2 Pa...

Page 6: ...menu The PIR menu is available to DETECT IAQ OCSa CO2 TEMP MB When the PIR Control parameter is enabled the control ler s output signal works if occupancy is detected If no occupancy is detected the controller s output signal is 0 You can also adjust the delay for PIR activation and deac tivation using the menu M OK OK OK OK PIR SENSOR Enabled PIR Control 3 Act delay m 15 Deact delay m Output scal...

Page 7: ...egr time s P Control mode 700 CO2 Setpoint 500 CO2 Propor band 22 0 C Setpoint 2 0 C Propor band In the maximum option regulation the controller s output signal is formed according to the dimensions that cause the largest value for the controller s output signal For example The carbon dioxide concentration is 800 ppm The temperature is 22 5 C Control output V Control output V Co2 Setpoint e g 700 ...

Page 8: ...eed 9600 19200 38400 56000 57600 76000 115200 bps Data bits 8 Parity none odd even Stop bits 1 Network size up to 128 units per segment The parameter memory s service life allows at least 1 million write cycles Termination of Modbus Modbus is terminated through the placement of an MBUS TERM jumper see figures 7 and 8 below Figure 7 Termination of Modbus in DETECT IAQa CO2 TEMP MB and DETECT IAQ OC...

Page 9: ...0 OFF 1 ON 0 2 Y2 output overdrive activation Bit 0 1 0 OFF 1 ON 0 3 Y3 output overdrive activation Bit 0 1 0 OFF 1 ON 0 4 Y4 output overdrive activation Bit 0 1 0 OFF 1 ON 0 7 Controller output direction Bit 0 1 0 Direct 1 Reversed 0 8 PIR controller Bit 0 1 0 PIR controller off 1 PIR controller on 1 DETECT IAQ OCSa CO2 TEMP MB Discrete inputs Register Parameter description Data type Values Range...

Page 10: ... TEMPERATURE 4 MAXIMUM CTRL 4 40010 Set point CO2 Signed 16 400 10000 400 10000 ppm 700 40011 Set point temperature Signed 16 180 260 18 0 26 0 C 210 40013 Proportional band CO2 Signed 16 100 10000 100 10000 ppm 500 40014 Proportional band temperature Signed 16 10 320 1 0 32 0 C 20 40016 Integration time Signed 16 50 5000 50 5000 s 300 40035 PIR activation delay Signed 16 0 1 2 0 0 min 1 3 min 2 6...

Page 11: ...c stan dards Emissions from equip ment in homes offices shops and similar environments Technical data Power supply 24 VAC DC 22 28 V 2 VA Output 0 10 V 2 10 V 0 5 V 2 mA Screw terminals 1 5 mm2 Cable gland M16 DETECT IAQ Da CO2 TEMP MB Carbon dioxide measurement Range of measurement 0 2000 ppm Accuracy 25 C type 40 ppm 3 from read value ABCLogic Long term stability year 2 FS ABCLogic Time constant...

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