Accessories
Heat recovery units can include various optional accessories that increase their functionality and comfort of use. In addition to higher-efficiency filters, air quality sensors and enthalpy exchangers, the most common optional extras include insulating boxes, stands, covers, adapters, etc. The full list of available accessories for heat recovery units, including order codes, can be found below, or in the 'For download' section, which contains a complete Accessory catalogue.
ACCESSORIES
 | Insulation box | for VENTBOX 150 Thin | insulation box (must be used if the unit is operated in an area where the ambient temperature reaches max. 5 °C) | P-021 |
 | nsulation box | for VENTBOX 300 and 400 | insulation box (must be used if the unit is operated in an area where the ambient temperature reaches max. 5 °C) | P-020 |
 | Continuous manual control of relative P.R.T. | VENTBOX – central heat recovery system (all types) | 0–100 % continuous control with intensive exhaust | P-003 |
 | Spacer stands | for VENTBOX 300 and 400 | Spacer stands for floor mounting (in 4× pack) | P-026 |
 | Transition insulated XPS simple | for VENTBOX 300 and 400 | Single axis transition 180 mm to EPE pipe ∅ 160 mm | P-23160 |
 | Transition insulated XPS simple | for VENTBOX 300 and 400 | Single axis transition 180 mm to EPE pipe ∅ 200 mm | P-23200 |
 | Transition insulated XPS double | for VENTBOX 300 and 400 | Double 180 mm transition on EPE pipe ∅ 160 mm | P-24160 |
| Transition insulated XPS double | for VENTBOX 300 and 400 | Double 180 mm transition on EPE pipe ∅ 200 mm | P-24200 |
 | Heat pump | VENTBOX 400 Comfort version | utdoor air/air heat pump unit | P-035 |
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