The range of horizontal heat recovery units of series HHR have been designed for installation in ambients where, cause frequent air renewal, there is the necessity to recover part of the heat which otherwise would be lost in the state air. A crossflow aluminium plate heat recovery exchanger assures an heat exchange between exhaust and fresh air. This way the fresh air is pre-heated or pre-cooled (depending on the season). The supply air is also filtered before entering the heat exchanger which is also protected by another synthetic filter put on the exhaust air side, upstream the plate exchanger.Optionally, the supply air can be re-heated by a LPHW coil or by an electric coil.The heat recovery units of series HHR are proposed in four sizes with air flows from 300 m3/h to 4100 m3/h; furthermore the whole range has been updated to meet the new ERP 2018 Eco Design standard.
In addition can be supplied units with the following additional features:
• Sandwich panel of 17 mm thickness galvanized/galvanized insulated using injected polyurethane foam (density 40 Kg/m3).
• Sandwich panel of 17 mm thickness pre-painted/galvanized insulated using injected polyurethane foam (density 40 Kg/m3).
• Stainless steel AISI 304 drain pans.
• Supports for counter ceiling installation.
•Electric coil 400/3/50 V/ph/Hz.
• 2 rows LPHW heating coil.
• Plenum with 4 rows cold water coil.
• Plenum with 4 rows direct expansion cooling coil.
• Free-cooling aluminium dampers.
• Mixing box with 3 dampers.
• Servomotors for dampers.
• Air volume control damper.
• Pressostats or manometers on filters.
• Mixing box with 3 dampers conjugation.
• Frost protection thermostat.
• Commutator with 4 positions.
• Supports for ceiling suspension.
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