Ventmatika EKA Series Technical Data, Mounting, Maintenance
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Ventmatika EKA Series Technical Data, Mounting, Maintenance

Electrical circular duct heaters
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ELECTRICAL CIRCULAR DUCT HEATERS
EKA

Technical data

Mounting
Maintenance
ELECTRICAL CIRCULAR DUCT HEATERS
EKA

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  • Page 1: Technical Data

    ELECTRICAL CIRCULAR DUCT HEATERS Technical data Mounting Maintenance ELECTRICAL CIRCULAR DUCT HEATERS...
  • Page 2 ELECTRICAL CIRCULAR DUCT HEATERS Description Electrical duct heaters EKA are designed to heat fresh air in ventilation systems. Casing (EKA protection class IP 44, except EKA Type NV which protection class IP 30) is made from Aluzinc coated steel which is high temperature proof and with rubber seals for duct connection. Heating elements tube is made from stainless steel AISI 304.
  • Page 3 ELECTRICAL CIRCULAR DUCT HEATERS D+25 ̴ 5 0 ̴ 5 0 D+25+63 ̴ 5 0 ̴ 5 0 >1,5 kW (1~230V) ≥3,0 kW (2~400V); >3,0 kW (3~400V)
  • Page 4 ELECTRICAL CIRCULAR DUCT HEATERS Heater type A(mm) B(mm) C(mm) D(mm) EKA 100 EKA 125 EKA 160 EKA 200 EKA 250 EKA 250-12kW EKA 250-15kW EKA 315 EKA 315-12kW EKA 315-15kW EKA 315-18kW EKA 355 EKA 355-12kW EKA 355-15kW EKA 355-18kW EKA 400 EKA 400-12kW EKA 400-15kW...
  • Page 5 ELECTRICAL CIRCULAR DUCT HEATERS Technical data Available Diameter Min. airflow Power supply Power Heater type heating (mm) (m³/h) (VAC/50Hz) (kW) elements (kW) EKA 100 1~230 0,3...1,8 EKA 125 1~230 0,3...3,6 0,3/0,6 1~230 0,3...7,2 0,3/0,6/1,0/1,2 EKA 160 2~400 1,0...6,0 3~400 3,0...6,0 1~230 0,3...7,2 0,3/0,6/1,0/1,2...
  • Page 6 ELECTRICAL CIRCULAR DUCT HEATERS 2~400 1,0/1,5 EKA 400-18kW 3~400 1,0/1,5 EKA 400-21kW 3~400 1,0/1,5 EKA 400-24kW 3~400 1,0/1,5 1~230 0,6...9,0 0,6/1,0/1,2 EKA 450 2~400 1,0...9,0 1,0/1,5 3~400 3,0...9,0 1,0/1,5 1~230 EKA 450-12kW 2~400 1,0/1,5 3~400 1,0/1,5 1~230 EKA 450-15kW 2~400 1,0/1,5 3~400 1,0/1,5...
  • Page 7 ELECTRICAL CIRCULAR DUCT HEATERS Model marking EKA 100-0.3-1f PS without integrated control 1 – Duct diameter (mm) – 100 mm – 200 mm – 355 mm – 500 mm – 125 mm – 250 mm – 400 mm – 160 mm –...
  • Page 8 ELECTRICAL CIRCULAR DUCT HEATERS 5 – Additional accessories: – Differential pressure switch for air flow detection – Sensor for minimum air velocity detection PTC/PS – Sensor for minimum air velocity detection and diff. pressure switch for air flow detection PTC/K –...
  • Page 9 ELECTRICAL CIRCULAR DUCT HEATERS IMPORTANT: 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 heaters, the standards and regulations in force in your country must be followed strictly adhered to. Within the installation an electrical isolation automatic circuit breaker (not included) must be present, to enable the installer to cut all power supply lines.
  • Page 10 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 3. Mounting example EKA NIS… Fig. 4. Mounting example EKA ESKM… Fig. 5. Mounting example EKA NV…2NTC… Fig. 6. Mounting example EKA NI…2NTC…...
  • Page 11 ELECTRICAL CIRCULAR DUCT HEATERS AHU – Air handling unit Fig. 7. Mounting example EKA NV… (Preheater) AHU – Air handling unit Fig. 8. Mounting example EKA NI… (Preheater) AHU – Air handling unit Fig. 9. Mounting example EKA NIS… (Preheater) AHU –...
  • Page 12 ELECTRICAL CIRCULAR DUCT HEATERS Heaters EKA with integrated controller Heaters EKA with integrated temperature controller EKR-KN… (See Fig. 11) can be controlled in five different ways depending on control type: Type EKA NV – temperature control potentiometer on the top of the heater casing for Type EKA NI –...
  • Page 13 ELECTRICAL CIRCULAR DUCT HEATERS External controllers for the heaters EKA Heaters EKA without integrated control can be controlled with external controllers (listed below) with one or two air temperature sensors (ordered separately), depending on operating mode. Voltage Controlled Additional Controlled Total load Type Input/Output...
  • Page 14 ELECTRICAL CIRCULAR DUCT HEATERS Additional accessories for the controllers Additional accessories (ordered separately) intended for use with external and integrated controllers are listed below: Measurement range Setpoint range Type Description (°C) (°C) Duct temperature -30...105 sensor TJ-K10K Room temperature -30...105 sensor panel TR NTC10 Room temperature...
  • Page 15 ELECTRICAL CIRCULAR DUCT HEATERS Description of control type Heater type Temperature control type Setpoint range EKA NV... Potentiometer on the top of the heater casing (0...30) °C* EKA NI... External wired remote panel with setpoint knob (TR5K) (0...30) °C EKA NIS... External wired remote (0...10) VDC signal (analog input) P**×(0...100) % EKA ESKM...
  • Page 16 ELECTRICAL CIRCULAR DUCT HEATERS IMPORTANT: If failure appears, power supply must be switched off and only then performed fault elimination works. Description of operating EKA NIS … Electrical duct heaters EKA NIS … are designed for the heaters power (0…100) % control by analog signal input (0…10) VDC.
  • Page 17 ELECTRICAL CIRCULAR DUCT HEATERS Heaters EKA NI … PTC … (PH) operates by the supply (TJ-K10K) air temperature sensor. Setpoint temperature (0…30) °C. There can be set the different desired (setpoint) air temperature by wired remote control panel. If LED 1 lights continuously it means that there is a failure of: PTC (air velocity) sensor, supply (TJ-K10K) air temperature sensor, wired remote control panel TR5K.
  • Page 18 ELECTRICAL CIRCULAR DUCT HEATERS IMPORTANT: If failure appears, power supply must be switched off and only then performed fault elimination works. Description of operating EKA NI … 2NTC Electrical duct heaters EKA NI … 2NTC are designed with integrated temperature control, two temperature sensors, wired remote control panel (TR5K NTC10) for temperature setpoint.
  • Page 19 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.
  • Page 20 ELECTRICAL CIRCULAR DUCT HEATERS Description of operating EKA MB … Electrical duct heaters EKA MB … can communicate via Modbus RTU. Connected to the system EKA MB … is a Slave device. Modbus settings are shown in table 2. Table 2. Modbus settings Setting Possible values Default value...
  • Page 21 ELECTRICAL CIRCULAR DUCT HEATERS Electrical wiring diagrams S – Automatic circuit breaker J – Switch T – Timer EKR-KN… – PCB of temperature controller V1, V2 – Triacs A – Heating elements B – Overheat thermostat with automatic reset C – Overheat thermostat with manual reset K –...
  • Page 22 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 15. Electrical wiring diagram of 3-phase 400V heater EKA…-…-3f > 3,6 kW ≤ 3,6 kW Fig. 16. Electrical wiring diagrams of single phase 230V heater EKA…-…-1f PS > 6 kW ≤ 6 kW Fig. 17. Electrical wiring diagrams of 2-phase 400V heater EKA…-…-2f PS...
  • Page 23 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 18. Electrical wiring diagram of 3-phase 400V heater EKA…-…-3f PS > 3,6 kW ≤ 3,6 kW Fig. 19. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f...
  • Page 24 ELECTRICAL CIRCULAR DUCT HEATERS > 6 kW ≤ 6 kW Fig. 20. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f Fig. 21. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f...
  • Page 25 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 kW ≤ 3,6 kW Fig. 22. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f PS > 6 kW ≤ 6 kW Fig. 23. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f PS...
  • Page 26 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 24. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PS > 3,6 kW ≤ 3,6 kW Fig. 25. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f PTC...
  • Page 27 ELECTRICAL CIRCULAR DUCT HEATERS > 6 kW ≤ 6 kW Fig. 26. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f PTC Fig. 27. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PTC...
  • Page 28 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 kW ≤ 3,6 kW Fig. 28. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f PTC/PS > 6 kW ≤ 6 kW Fig. 29. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f PTC/PS...
  • Page 29 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 30. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PTC/PS Fig. 31. Electrical wiring diagram of single phase 230V heater EKA NV…-…-1f PTC/K...
  • Page 30 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 32. Electrical wiring diagram of 2-phase 400V heater EKA NV…-…-2f PTC/K Fig. 33. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PTC/K...
  • Page 31 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 34. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f PH > 6 kW ≤ 6 kW Fig. 35. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f PH...
  • Page 32 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 36. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PH > 3,6 Kw ≤ 3,6 kW Fig. 37. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f 2NTC...
  • Page 33 ELECTRICAL CIRCULAR DUCT HEATERS > 6 kW ≤ 6 kW Fig. 38. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f 2NTC Fig. 39. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f 2NTC...
  • Page 34 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 40. Electrical wiring diagrams of single phase 230V heater EKA NV…-…-1f PTC/2NTC > 6 kW ≤ 6 kW Fig. 41. Electrical wiring diagrams of 2-phase 400V heater EKA NV…-…-2f PTC/2NTC...
  • Page 35 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 42. Electrical wiring diagram of 3-phase 400V heater EKA NV…-…-3f PTC/2NTC > 3,6 Kw ≤ 3,6 kW Fig. 43. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f...
  • Page 36 ELECTRICAL CIRCULAR DUCT HEATERS > 6 kW ≤ 6 kW Fig. 44. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f Fig. 45. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f...
  • Page 37 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 46. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f PS > 6 Kw ≤ 6 kW Fig. 47. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f PS...
  • Page 38 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 48. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PS > 3,6 Kw ≤ 3,6 kW Fig. 49. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f PTC...
  • Page 39 ELECTRICAL CIRCULAR DUCT HEATERS > 6 Kw ≤ 6 kW Fig. 50. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f PTC Fig. 51. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PTC...
  • Page 40 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 52. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f PTC/PS > 6 Kw ≤ 6 kW Fig. 53. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f PTC/PS...
  • Page 41 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 54. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PTC/PS Fig. 55. Electrical wiring diagram of single phase 230V heater EKA NI…-…-1f PTC/K...
  • Page 42 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 56. Electrical wiring diagram of 2-phase 400V heater EKA NI…-…-2f PTC/K Fig. 57. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PTC/K...
  • Page 43 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 58. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f PH > 6 Kw ≤ 6 kW Fig. 59. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f PH...
  • Page 44 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 60. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PH > 3,6 Kw ≤ 3,6 kW Fig. 61. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f 2NTC...
  • Page 45 ELECTRICAL CIRCULAR DUCT HEATERS > 6 Kw ≤ 6 kW Fig. 62. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f 2NTC Fig. 63. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f 2NTC...
  • Page 46 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 64. Electrical wiring diagrams of single phase 230V heater EKA NI…-…-1f PTC/2NTC > 6 Kw ≤ 6 kW Fig. 65. Electrical wiring diagrams of 2-phase 400V heater EKA NI…-…-2f PTC/2NTC...
  • Page 47 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 66. Electrical wiring diagram of 3-phase 400V heater EKA NI…-…-3f PTC/2NTC > 3,6 Kw ≤ 3,6 kW Fig. 67. Electrical wiring diagrams of single phase 230V heater EKA NIS…-…-1f...
  • Page 48 ELECTRICAL CIRCULAR DUCT HEATERS > 6 Kw ≤ 6 kW Fig. 68. Electrical wiring diagrams of 2-phase 400V heater EKA NIS…-…-2f Fig. 69. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f...
  • Page 49 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 70. Electrical wiring diagrams of single phase 230V heater EKA NIS…-…-1f PS > 6 Kw ≤ 6 kW Fig. 71. Electrical wiring diagrams of 2-phase 400V heater EKA NIS…-…-2f PS...
  • Page 50 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 72. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f PS > 3,6 Kw ≤ 3,6 kW Fig. 73. Electrical wiring diagrams of single phase 230V heater EKA NIS…-…-1f PTC...
  • Page 51 ELECTRICAL CIRCULAR DUCT HEATERS > 6 Kw ≤ 6 kW Fig. 74. Electrical wiring diagrams of 2-phase 400V heater EKA NIS…-…-2f PTC Fig. 75. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f PTC...
  • Page 52 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 76. Electrical wiring diagrams of single phase 230V heater EKA NIS…-…-1f PTC/PS > 6 Kw ≤ 6 kW Fig. 77. Electrical wiring diagrams of 2-phase 400V heater EKA NIS…-…-2f PTC/PS...
  • Page 53 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 78. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f PTC/PS Fig. 79. Electrical wiring diagram of single phase 230V heater EKA NIS…-…-1f PTC/K...
  • Page 54 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 80. Electrical wiring diagram of 2-phase 400V heater EKA NIS…-…-2f PTC/K Fig. 81. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f PTC/K...
  • Page 55 ELECTRICAL CIRCULAR DUCT HEATERS > 3,6 Kw ≤ 3,6 kW Fig. 82. Electrical wiring diagrams of single phase 230V heater EKA NIS…-…-1f PH > 6 Kw ≤ 6 kW Fig. 83. Electrical wiring diagrams of 2-phase 400V heater EKA NIS…-…-2f PH...
  • Page 56 ELECTRICAL CIRCULAR DUCT HEATERS Fig. 84. Electrical wiring diagram of 3-phase 400V heater EKA NIS…-…-3f PH ≤ 3 kW Fig. 85. Electrical wiring diagram of single phase 230V heater EKA ESKM…-…-1f...
  • Page 57 ELECTRICAL CIRCULAR DUCT HEATERS ≤ 6 kW Fig. 86. Electrical wiring diagram of 2-phase 400V heater EKA ESKM…-…-2f ≤ 15 kW Fig. 87. Electrical wiring diagram of 3-phase 400V heater EKA ESKM…-…-3f...
  • Page 58 For warranty service, contact an official “Ventmatika“ dealer. Any manipulation of the appliance by personnel not appointed by “Ventmatika“ will cancel the guarantee. “Ventmatika“ reserves the right to modify the product without prior notice.
  • Page 59 ELECTRICAL CIRCULAR DUCT HEATERS Notes...

This manual is also suitable for:

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