Description Of Operating Eka Ni … Ptc/2Ntc - Ventmatika EKA Series Technical Data, Mounting, Maintenance

ELECTRICAL CIRCULAR DUCT HEATERS
If LED 1 lights continuously it means that there is a failure of: PTC (air velocity) sensor, supply
(TJ-K10K) or room (NTC10) air temperature sensor, potentiometer on the top of the heater casing.
When the heater power supply is switched on, after power supply interruption or after any
failure, controller is in preparing mode for 30 seconds.
IMPORTANT:
If failure appears, power supply must be switched off and only then performed
fault elimination works.
Description of operating EKA NI ... PTC/2NTC
Electrical duct heaters EKA NI ... PTC/2NTC are designed with integrated temperature control,
2
PTC (air velocity) and two temperature sensors, wired remote control panel (TR5K NTC10) for
temperature setpoint.
When the heater power supply is switched on, controller (EKR-KN...) is in preparing mode for 30
seconds, LED 1 flashes once every 5 seconds. If there is air velocity (Min. 1,5 m/s) in the duct heater
after preparing mode, controller turns on the heating depending on the demand, LED 2 lights. If there
is no air velocity, controller don't turns on the heating till air velocity appears.
Heaters EKA NI ... PTC/2NTC can operate in two modes:
1. Control by the supply air temperature sensor (TJ-K10K), when the first (1) switch of JP1 (see
Fig. 11) is in position OFF. LED 1 flashes once per second. Set point temperature (0...30) °C.
2. Control by the supply (TJ-K10K) and by the room (NTC10) air temperature sensor, when the
first (1) switch of JP1 (see Fig. 11) is in position ON. LED 1 flashes twice per second. Setpoint
temperature (15...30) °C. In this mode is preprogrammed the minimum (15°C) and the
maximum (40°C) temperatures of supply air. The room air temperature sensor is mounted
in the wired remote control panel TR5K NTC10.
Depending on the operating mode there can be set the different desired (setpoint) air
temperature by wired remote control panel TR5K NTC10.
If LED 1 lights continuously it means that there is a failure of: PTC (air velocity) sensor, supply
(TJ-K10K) or room (NTC10) air temperature sensor, wired remote control panel TR5K NTC10.
When the heater power supply is switched on, after power supply interruption or after any
failure, controller is in preparing mode for 30 seconds.
IMPORTANT:
If failure appears, power supply must be switched off and only then performed
fault elimination works.
EKA
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