Page 8
Operation and maintenance
NEW EcoHeater
DSEH200301.01.EN
Continuous product development may give rise to specification changes without notice.
3 Technical description
3.1 Design
The EcoHeater extract air heat pump comprises two sections, a fan section and
compressor section.
Fan section
Compressor section
Fan section
The fan section has a direct driven chamber fan with an EC motor and deep-
ridged filter. EcoHeater sizes 240 and 300 have double fans. The fan unit is with-
drawable. Replace the filter from the front of the unit.
Compressor section
The compressor 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), frost-protected evaporation
water outlet for outdoor operation, and integrated control equipment with electri-
cal connection.
The cooling circuit is integrated in the compressor 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, 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 Eco-
Heater’s casing for outdoor operation.
