Cairox CVA M Series, Инструкция пользователя

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User Instruction CAIROX rev1 – 28/01/2022
DESCRIPTION OF OPERATING CVA MPX …
Electrical duct heaters CVA MPX … are designed for the heaters power (0…100) % control by analog signal
input (0…10) VDC.
When the heater power supply is switched on, LED 6 on the controller (EKR- K…) PCB (see Fig. 1 on page 4)
fl ashes every second. If controller turns on the heating depending on analog signal, LED 5 lights (see Fig. 1 on page
4) .
DESCRIPTION OF OPERATING CVA MPI … (PTC…PS)
Electrical duct heaters CVA MPI … (PTC…PS) are designed with integrated temperature control, PTC (air
velocity), PS (air pressure) and temperature sensors, setpoint potentiometer knob is integrated on the heater lid.
When the heater power supply is switched on, controller (EKR- K…) is in preparation mode for 30 seconds, LED
1 fl ashes once every 5 seconds. If air velocity is detected by PTC sensor (rapid LED 1 fl ashes when Min. 1,5 m/s is
detected) and air pressure is greater than min 20kPA after preparation mode ends, LED 1 will start to flash once
every second and controller will initiate the heating based on demand, LED 2 is indicating when heating is initiated.
If there is no air velocity detected and or there is not enough pressure in the duct, controller will not initiate the
heating until air velocity and or pressure is detected. Heaters CVA MPI
… (PTC…PS) operates by the supply (TJ-K10K)
air temperature sensor.
CVA MPI … PTC … setpoint temperature (0…30) °C
CVA MPI … PTC/PS setpoint temperature (- 10…50) °C
There can be set the different desired (setpoint) air temperature by potentiometer on the top of the heater
casing.
Pre-heater casing and air duct before pre-heater should be insulated with rock wool 10cm (R~2,4m²K/W).
Depending on the mounting position of the heater in the duct relative to the motor (pre- or post-motor), the
pressure hose must be placed on the "-" or "+" pipe, respectively.
DESCRIPTION OF OPERATING CVA MPE … (PTC…PS)*
Electrical duct heaters CVA MPE … (PTC…PS) are designed with integrated temperature control, PTC (air
velocity) PS (air pressure) and temperature sensors, wired remote control panel (TR5K) for temperature setpoint.
When the heater power supply is switched on, controller (EKR- K…) is in preparation mode for 30 seconds, LED
1 fl ashes once every 5 seconds. If air velocity is detected by PTC sensor (rapid LED 1 fl ashes when Min. 1,5 m/s is
detected) and air pressure is greater than min 20kPA after preparation mode ends, LED 1 will start to flash once
every second and controller will initiate the heating based on demand, LED 2 is indicating when heating is initiated.
If there is no air velocity detected and or there is not enough pressure in the duct, controller will not initiate the
heating until air velocity and or pressure is detected.
Heaters CVA MPE … (PTC…PS) operates by the supply (TJ-K10K) air temperature
sensor. CVA NI … PTC … setpoint temperature (0…30)
°C CVA MPE … PTC/PS setpoint temperature (- 10…50) °C
There can be set the different desired (setpoint) air temperature by wired remote control panel.
Pre-heater casing and air duct before pre-heater should be insulated with rock wool 10cm (R~2,4m²K/W).
Depending on the mounting position of the heater in the duct relative to the motor (pre- or post-motor), the
pressure hose must be placed on the "-" or "+" pipe, respectively.
* - non standard option. For more information please contact us : www.cairox.com
IMPORTANT: If failure appears, power supply must be switched off and only then performed fault
elimination works.
IMPORTANT: If failure appears, power supply must be switched off and only then performed fault
elimination works.