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UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP PRO_22-01
EN
For rectangular ducts where opening sides are longer than 500 mm, it is recommended to use universal clamp connec-
tors instead of C profile to ensure better air tightness. Clamp connectors should be spaced evenly at intervals of no more
than 265 mm.
≤ 265 mm
Fig. 27.
Duct connection example using universal clamp connectors
Air closing damper profile dimensions are the same as those of L-20 flange (for all AHU sizes), thus when mounting ad-
ditional parts (ducts, flexible connectors, duct heaters/coolers, silencers and etc.) directly to the air damper, they should also
have an L-20 flange connection for easier installation.
3.7. Outdoor Units
RHP PRO air handling units for outdoor installation must be additionally protected against environmental effects by
installing a protective roof and exhaust air hoods. Units shall be mounted on an installation frame which is attached to an
installation base. Ventilation devices, when possible, should be installed near the walls for protection against wind loads. For
outdoor installation, units with drainage pipes must be additionally protected against freezing, for example, with electric
heating cables for drainage pipes. If the unit was ordered for outdoor installation, each section of the unit will be fitted with
a protective roof. Separately ordered protective roof shall be installed once the unit is fully assembled.
Connections of units for outdoor installation must be additionally sealed (sealant not included).
If the outdoor unit will be switched off during the cold season, supply and extract air ducts (on the in-
door side) must be fitted with additional air shut-off dampers. These should prevent warm indoor air
from circulating inside the unit when it is stopped to avoid condensation, which may be detrimental
to electronic components.