Burner Portion

Heat release

max. 120 kW (410,000 BTU/hr)

Flame length

max. 600 mm (approx. 23.5“)

Tube length

lengths available from 240 –15,000 mm, in 10 mm increments

Gas connection

1/2", from left or right

Air connection

1“, may be rotated in increments of 90°

Air flow

max. 50 m3/h

Air ratio

0.3 – 0.5; remainder must be available from combustion chamber itself

Maximum ambient temperature

ignitor tube: 500°C (932°F); if temperature is higher, combustion air must be left on to serve as cooling air, and a stainless steel outer tube must be used. At temperatures > 700°C (1292°F), additional cooling air must be supplied in the gap between the guide tube and ignitor tube. In case of divisible or tilting tubes the temperature at the division or moving part must not exceed 180°C (356°F).

Maximum back pressure

200 mbarg inside the ignitor housing

Transformer and Flame Monitor

Enclosure rating

IP 65 (NEMA 4x)

Connection type

permanently sealed in control cable (IP 65 version)
In ex zone the free cable must be connected in housings which obtain the explosionproof acc. to EN50021 or EN50014

Power consumption

ignition transformer: 100 VA
flame monitor: 10 VA

Duty cycle

ignition transformer: usually limited to 2 – 3 s by the burner control 15% duty cycle (cycle time 3 min. = 100 %)
primary thermal winding protection
Flame monitor: any

Ambient temperature

-20°C to +40°C (-4°F to +104°F), where EC approval is required

Explosion proof ratings

II 3 G EEx nC IIC T5 zone 2 div. II