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Heat exchanger Type EL

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Electric air heater with plain stainless steel heating coil

Electric air heater with plain stainless steel heating coil

 

 

EL_img_01psd.png
EL_img_03psd.png

EL-UK

For the electric reheating of airflows in circular ducting


Circular electric air heater for reheating airflows, suitable for VAV terminal units TVR and mechanical self-powered CAV controllers RN and VFC

  • Outlet airflow temperature 50 °C max.
  • Plain heating coil, stainless steel 1.4301
  • Integral overheating protection with temperature monitor (auto reset) and thermal cut-out (manual reset)
  • For horizontal or vertical ducts
  • Suitable for circular ducts to EN 1506 or EN 13180
  • With lip seal
  • Protection level: IP 43
  • Casing leakage according to EN 15727, class C

General information

Application

  • Electric air heater for reheating airflows up to 50 °C in circular ducts
  • For VAV terminal units Type TVR and for CAV controllers Type RN or VFC



Nominal sizes

  • 100, 125, 160, 200, 250, 315, 400



Parts and characteristics

  • Ready-to-install air heater
  • Twofold overheating protection:
    • Temperature monitor with automatic reset
    • Thermal cut-out with manual reset
  • Connection terminals inside
  • Casing is ready for cable feedthrough; strain relief and cable gland (M20 or M25) to be provided by others



Construction features

  • Circular casing with rectangular switch cabinet
  • Spigot with lip seal, for circular connecting ducts to EN 1506 or EN 13180
  • The heating coil is an encased plain pipe
  • IP 43



Material and surfaces

  • Casing and switch cabinet made of galvanised sheet steel
  • Heating coil made of stainless steel 1.4301



Standards and guidelines

  • Casing air leakage to EN 15727, class C



Maintenance

  • Regular functional tests, especially of the thermal cut-out



Useful additions

  • Capacity control is required (to be provided by others)
  • Airflow monitoring is required (to be provided by others)


Technical information

  • Technical data
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

Nominal sizes100 – 400 mm

Volume flow rate range

12 - 750 l/s or 41 - 2700 m3/h

Electrical power consumption0.4 – 9 kW
Minimum airflow velocity1.5 m/s (airflow monitoring required, by others)
Maximum outlet airflow temperature50 °C (capacity control required, by others)
Maximum operating temperatureWithout integral control = 40 °C max.
Release temperature – temperature monitor TWApprox. 60 °C (automatic reset if the value falls below this temperature; hysteresis approx. 15 K)
Release temperature for thermal cut-outApprox. 90 °C (manual reset on the air heater required)

Air-side static differential pressure

1 – 20

Supply voltage NS 100230 V AC, 400 W
Supply voltage NS 125230 V AC, 900 W
Supply voltage NS 160

230 V AC, 1,200 W

Supply voltage NS 200

230 V AC, 2,100 W

Supply voltage NS 250

400 V AC 2-phase, 3,000 W

Supply voltage NS 315

400 V AC 3-phase, 6,000 W

Supply voltage NS 400

400 V AC 3-phase, 9,000 W

Protection levelIP 43
EC conformityEMC to 2014/30/EU, low voltage to 2014/35/EU
LicenceCE, UKCA, S, EAC



Technische Daten zum Elektrolufterhitzer


Grundgeräte: TVR, RN und VFC

NG

qv

∆pst [Pa]

te = 16 °C

l/sm³/hP [kW]

ta [°C]

10012435

0,4

44
100207210

0,4

33
1003010815

0,4

27
1004014425

0,4

24
1004516230

0,4

23
12524855

0,9

48
1253512620

0,9

37
1255018040

0,9

31
1256523460

0,9

27
1257527080

0,9

26
160301085

1,2

49
1605018010

1,2

36
1607025215

1,2

30
1609534225

1,2

26
16011541435

1,2

25
200592105

2,1

46
2008028820

2,1

38
20011541435

2,1

31
20015054055

2,1

28
20018064880

2,1

26
250772755349
25012545015336
25018064825330
25023584640327
250290104460325
3151535505649
31520072015641
315285102625633
315375135040629
315460165660627
4002288205949
400325117015939
400465167430932
400605217850928
400750270075926

P: elektrische Leistung
te: Lufteinströmtemperatur
ta: Luftausströmtemperatur
qv: Volumenstrom
Δpst: statische Druckdifferenz

Specification text



Electric air heater for reheating airflows in ventilation and air conditioning systems. Dimensions fit VAV terminal units TVR as well as CAV controllers RN and VFC. Integral twofold overheating protection with temperature monitor and thermal cut-out. Spigot with lip seal for ducts according to EN 1506 or EN 13180. Casing leakage according to EN 15727, class C.




Materials and surfaces



  • Casing and switch cabinet made of galvanised sheet steel
  • Heating coil made of stainless steel 1.4301



Technical data

  • Volume flow rate range: 12 – 750 l/s or 41 – 2700 m³/h
  • Electrical power consumption: 0.4 to 9 kW
  • Maximum outlet airflow temperature: 50 °C
  • Static differential pressure: 5 to 20 Pa
  • Supply voltage: 1 × 230 V AC to 3 × 400 V AC
  • Protection level: IP 43


Sizing data



  • qv [m³/h]
  • P [kW]

 



EL/160
||
12
1 TypeEL Electric air heater for air terminal units TVE, TVR and for CAV controllers RN and VFC 2 Nominal size [mm]100, 125, 160, 200, 250, 315, 400
Order Example: EL/160
Nominal size160 mm

Downloads

product information

  • Product data sheet Type EL

    EL_PD_2024_07_02_DE_en Product data sheet 240 KB pdf

certificates

  • Certificate concerning statistical leakage tests

    LC_v1_2024_10_DE_en Certificate  660 KB pdf

operation manuals

  • Installation manual

    02_CV-M-MTU-MTX-MTP Installation manual 4,6 MB pdf

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