Cairox CVA M Series User Instruction Download Page 1 | Manualshive

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User Instruction

CAIROX

rev1

–

28/01/2022

www.cairox.com

USER INSTRUCTIONS

ELECTRICAL CIRCULAR

DUCT HEATERS

CVA M

CVA MPE

CVA MPX

CVA MPI

CVA MQIA

CVA MQI

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2
3
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Summary of Contents for CVA M Series

Page 1: ...p 1 15 User Instruction CAIROX rev1 28 01 2022 www cairox com USER INSTRUCTIONS ELECTRICAL CIRCULAR DUCT HEATERS CVA M CVA MPE CVA MPX CVA MPI CVA MQIA CVA MQI...

Page 2: ...r to prevent product damage and employees injuries Do not lift product by power supplycable connectionbox Avoidimpactsandimpactloads Until final installation store products in dry place with humidity...

Page 3: ...ion of operating CVA MPI 11 Description of operating CVA MPE 11 Description of operating CVA MPX 12 Description of operating CVA MPI PTC PS 12 Description of operating CVA MPE PTC PS 12 Description of...

Page 4: ...Heaters intended only for inside installation If heater is installed in such way that can be accidental contact with heating elements protective grill must be installed The air velocity in the duct o...

Page 5: ...PORTANT The installation to the mains power supply may only be wired by a competent electrician The power supply cable must be selected in the ratio with power of the heater When installing these heat...

Page 6: ...FF ON 6 24VDC isusedinCVAESKMtypeheater Fig 4 Fig 5 MountingexampleCVA MPI NI 2NTC TemperaturesetpointknobandTRNTC10areusedinCVA MPI2NTCheaterversion TR5KNTC10isusedinCVA MPE2NTCheaterversion Fig 5 Fi...

Page 7: ...rol signal ON OFF ON 6 24VDC from AHU if possible is used in CVA ESKM type pre heater DIMENSIONS Fig 8 Type 1 Type 2 Type 3 Type 4 Type 1 Standard CVA heater dimensions Type 2 CVA heater with external...

Page 8: ...kW 880 782 81 400 CVA 450 373 276 81 450 CVA 500 373 276 81 500 CVA 500 12kW 500 402 81 500 CVA 500 15kW 630 532 81 500 CVA 500 18kW 630 532 81 500 CVA 500 21kW 770 672 81 500 CVA 500 24kW 880 782 81...

Page 9: ...1 0 1 2 2 400 1 0 9 0 1 0 1 5 3 400 3 0 9 0 1 0 1 5 CVA 500 12kW 500 1060 1 230 9 1 0 2 400 12 1 0 1 5 3 400 12 1 0 1 5 CVA 500 15kW 500 1060 1 230 12 1 0 2 400 15 1 0 1 5 3 400 15 1 0 1 5 CVA 500 18k...

Page 10: ...t ESKM External wired remote PWM ON OFF ON 6 24 VDC signal for temperature control 1B Duct diameter mm 100 100 mm 160 160 mm 355 355 mm 450 450 mm 125 125 mm 200 200 mm 400 400 mm 500 500 mm 150 150 m...

Page 11: ...wer supply is switched on LED 6 on the controller EKR K PCB see Fig 1 on page 4 ashes once every 8 seconds if setpoint is 0 C and every second if setpoint is higher than 0 C If controller turns on the...

Page 12: ...rockwool10cm R 2 4m K W Depending on the mounting position of the heater in the duct relative to the motor pre or post motor the pressurehosemustbeplacedonthe or pipe respectively DESCRIPTION OF OPERA...

Page 13: ...controller turns on the heating depending on the demand LED 5lights seeFig 1onpage4 HeatersCVA MPE 2NTCcanoperateintwomodes 1 Control by the supply air temperature sensor TJ K10K when the first 1 swi...

Page 14: ...rammedtheminimum 15 C andthemaximum 40 C temperatures ofsupplyair Theroom airtemperaturesensorismountedinthewiredpanelTRNTC10 Depending on the operating mode there can be set the di erent desired setp...

Page 15: ...or resistance it must be 10k at 25 C 2 Air ow sensor fault Check sensor resistance It must be 22 between X15 X16 and 10 between X15 X18 Sensor must be clear 3 When the heater power supply is switched...

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