TWL 1500
400 - 1.500 m³/h , app. 300 kg, L x W x H = 1.962 x 800 x 989 mm

TWL 2500
700 - 2.800 m³/h , app. 420 kg, L x W x H = 2.642 x 1.328 x 989 mm

The domestic ventilation units mainly consist of:

• Fresh air and return air filter
• Connection flanges
• Condensate tube
• High efficiency counterflow heat exchanger
• Bypass duct with bypass flap and actuating motor, controlled by way of outside temperature
• Electronically controlled constant flow supply and return air fan
• 3-stage switch with time of day
• Mounting straps for vertical or horizontal installation
• Internal electrical connection box

Additionally available:

• Frost protection control
• Filter control
• Water heating coil
• DDC control system including time zone programming, frost protection and filter control
• Additional accessories on request