External fan of the Comfort and Comfort SE series are designed for combustion pressure venting using a forced method. This method allows using gas-fired boiler without specially organized natural draft flue.
External fan of the Comfort and Comfort SE series operate with single-circuit and double-circuit boilers Lemax of Premium N, Lider N, CLEVER, WISE series and gas heating facility Lemax series Premier as well as other boilers, where installed gas valve NOVA 820.
| Type of heat exchanger | Steel heat exchanger | Cast-iron heat exchanger | ||||||
|---|---|---|---|---|---|---|---|---|
| Nominal boiler heat output, kW | from 7,5 to 10 kW |
from 12,5 to 16 kW | from 20 to 30 kW |
from 35 to 40 kW | 16 kW | 25 kW | 35 kW | 40 kW |
| Energy-independent boiler | model Comfort SE (S) | model Comfort SE (M) | model Comfort SE (L) | model Comfort SE (L 140) | model Comfort SE (L) | model Comfort SE (L) | model Comfort SE (L 140) | model Comfort SE (L 140) |
| Energy-dependent boiler | model Comfort S(C) | model Comfort M(C) | model Comfort L(C) | model Comfort L(140C) | model Comfort L(C) | model Comfort L(C) | model Comfort L(140C) | model Comfort L(140C) |
| Underpressure, caused by turbo-extraction (at boiler exit), Pa | 5-8 | 5-12 | 5-12 | 5-12 | 5-12 | 5-12 | 5-12 | 5-12 |
| Pressure at extraction exit, Pa | 40-70 | 40-70 | 40-70 | 40-70 | 40-70 | 40-70 | 40-70 | 40-70 |
| Flue diameter, mm | 100 | 130 | 130 | 140 | 130 | 130 | 140 | 140 |
| Diameter of outlet connection, mm | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Diameter of choke ring of outlet connection, mm | - | - | - | - | 39 | 47 | 49 | - |
| System nominal voltage, V | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 |
| Rated current frequency, Hz | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Noise level, dB not more than | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Consuming power, W not more than | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Mass, kg | 3,8 | 3,8 | 3,8 | 3,8 | 3,8 | 3,8 | 3,8 | 3,8 |