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Operation and Maintenance Instructions
THE NEW EcoHeater
DSEH180401.00.EN
Continuous product development may give rise to specification changes without notice.
2 Technical description
2.1 Design
The EcoHeater extract air heat pump consists of two sections; the fan section
and heat pump section.
Fan section
Heat pump section
Heat pump section
The heat pump section comprises a DX heat recovery coil, electronic expan-
sion valve, a variable speed controlled compressor, fully soldered plate heat
exchanger (between refrigerant and the liquid side of the radiator circuit), frost-
protected evaporation water outlet for outdoor operation, and integrated control
equipment with electrical connection.
The cooling circuit is integrated in the heat pump section. The compressor and
control components are shielded from the extract air stream. The cooling circuit
is factory tested and built in accordance with PED 2014/68/EU, Module A2.
Designed in accordance with EN378.
The cooling circuit is supplied with a high pressure switch (manual reset), as well
as protection and alarm functions for high/low pressure. The cooling circuit is
controlled so freezing does not occur in the extract air coil. Refrigerant is R410a.
All piping and electrical connections are made via the front. Frost-protection
(heating wire) for the condensation outlet is a maximum of 1 metre from the heat
pump for outdoor operation.
