Ventilation systems with heat recovery
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The Helios KWL units with heat recovery are setting completely new standards in the sector of controlled ventilation. The models KWL 250 and 350 are now equipped with high efficiency heat exchangers that achieve efficiencies up to 90% and more when extracting condensated air. In combination with the EC-motor technology the KWL EC 350 achieves world champion energy saving and is therefore ideal in every low energy and passive house. It’s important that there is a healthy and comfortable climate in the air tight and well insulated housing, required for energy efficiency. It doesn’t matter, whether for multi storey buildings, houses or commercial applications. With electric or water heater battery, for vertical and horizontal installation. Helios offer the system solution for every requirement. That’s the way it works: Stale air with high humidity, harmful substances and smells are extracted from the kitchen, bathroom and toilets. Cooled down and released into the outside air. An equal volume of fresh outside air is filtered and then warmed up through the heat exchanger and input into the living room. Accessory With Helios accessory parts and mounting elements, Helios offer the perfect energy saving ventilation system to feel comfortable and save money. Central ventilation units with heat recovery Roof terminations Air extract elements NEW! 66 Ventilation systems with heat recovery Filter G 3 Fine filter F 5, optional F 7 Pre filter G 3 Outside air: – 3°C Extract air: + 8°C Fan Fan Extract air: + 21°C Supply air: + 16°C High efficiency cross flow heat exchanger Air heater for particularly cold days

Voltage/Frequency 230 V / 1 ph. / 50 Hz 230 V / 1 ph. / 50 Hz Max. current Amps at ventilation: 0.8 0.8 Sound levels in dB(A)* Intake LWA (sound power level) 65 58 53 65 58 53 Exhaust LWA (sound power level) 49 42 37 49 42 37 Case breakout LPA at 1 m 51 47 42 51 47 42 67 Compact unit with heat recovery KWL 250 for room units up to 120 m2 Compact unit with heat recovery for central ventilaton and extraction of residential buildings and multi storey buildings. High efficient heat exchanger with efficiency of more than 90%. Space saving, installation in roof, hall or basement area. Fits within...

68 Central ventilation unit with heat recovery for room units up to 240 m2 KWLC 350.. Fans Two low noise, energy saving centrifugal fans provide extract and supply, maintenance free and easily removable for cleaning if necessary. Filters Supplied as standard: The supply air is filtered by a pre filter G 3 and fine filter F 5 before entering the heat recovery section. The extract filter (G 3) cleans the air before the heat exchanger. All filters can be easily removed for cleaning. Pollen filter class F 7 (accessory) available for people with allergies. Heater battery With very low...

230 V / 1 ph. / 50 Hz 230 V / 1 ph. / 50 Hz 64 58 49 64 58 49 50 44 35 50 44 35 47 41 32 47 41 32 69 KWLC 350 and KWL EC 350 Performance data Frequency Hz Total 125 250 500 1k 2k 4k 8k LWA Exhaust dB(A) 50 41 45 43 43 42 38 31 LWA Intake dB(A) 64 49 55 53 54 61 57 52 LPA Case breakout dB(A) 47 36 41 43 41 38 32 24 . Min. air flow . Variable step 2 . Max. air flow Thermal efficiency in % Technical data For vertical installation KWLC 350 SEH 0076 KWLC 350 SWW 0174 For horizontal installation KWLC 350 LEH 0077 KWLC 350 LWW 0175 KWLC 350 With electric heater battery With water heater battery...

Dimensions in mm 70 Central ventilation unit with heat recovery for room units up to approx. 1000 m2 KWLC 650 and 1200 Specification Casing Made from galvanised steel. Double skinned with 50 mm thick heat and noise insulating mineral wool. Side panels are easy removable without tools through opening the clamps for free access to all elements. Perfect for cleaning, filter change and service. Anti vibration feet supplied with a drop towards condensation spigot, for vertical units. Cross flow heat exchanger Large cross section with high efficiency. Robust design, made from aluminium. Simple to...

Power fan 2 x Watts* 200 115 75 200 115 75 460 Sound levels in dB(A)* Intake LWA (sound power level) 68 61 45 68 61 45 73 68 54 Exhaust LWA (sound power level) 55 48 38 55 48 38 58 50 38 Case breakout LPAat 1 m 50 44 35 50 44 35 71 KWLC 650 and 1200 Technical data Frequency Hz Total 125 250 500 1k 2k 4k 8k LWA Exhaust dB(A) 55 46 50 48 48 47 43 36 LWA Intake dB(A) 68 53 59 57 60 65 61 56 LPA Case breakout dB(A) 50 39 44 46 44 42 35 28 V · m3/h Frequency Hz Total 125 250 500 1k 2k 4k 8k LWA Exhaust dB(A) 58 44 53 50 50 50 50 41 LWA Intake dB(A) 73 55 64 64 68 66 66 59 . Min. air flow ....

Controllers 72 Type Ref. No. Type Ref. No. Type Ref. No. Type Ref. No. 15 VKH 80/15 2060 VKH 100/15 2063 VKH 125/15 2069 30 VKH 80/30 2061 VKH 100/30 2064 VKH 125/30 2070 45 VKH 80/45 2062 VKH 100/45 2065 VKH 125/45 2071 60 VKH 100/60 2066 VKH 125/60 2072 75 VKH 100/75 2067 VKH 125/75 2073 90 VKH 100/90 2068 VKH 125/90 2074 120 VKH 125/120 2075 VKH 160/120 2078 150 VKH 160/150 2079 180 VKH 160/180 2080 210 VKH 160/210 2081 240 VKH 160/240 2082 270 VKH 160/270 2083 300 VKH 160/300 2084 Air intake (to put before/cover models VKH) ZV 80 0259 LGM 80 0253 LGM 100 0254 LGM 125 0258 LGM 160 0261...

ø 80 ø 100 ø 125 ø 160 ø 200 ø 250 ø 315 Type Ref. No. Type Ref. No. Type Ref. No. Type Ref. No. Type Ref. No. Type Ref. No. Type Ref. No. Flexible ducting ALF 80 5711 ALF 100 5712 ALF 125 5713 ALF 160 5757 ALF 200 5715 ALF 250 5716 ALF 315 5717 Duct connector – made from galvanised steel. RVB 80 5993 RVB 100 5994 RVB 125 5995 RVB 160 5987 RVB 200 5997 RVB 250 5998 RVB 315 5999 Worm drive clips – a steel band with a snap on tension lock. Contents = 10 pieces SCH 80 5722 SCH 100 5722 SCH 125 5723 SCH 160 5723 SCH 200 5724 SCH 250 5725 SCH 315 5727 T-pieces – made from galvanised steel TS 100...