4
From atmosphere
To atmosphere
Extract from dwelling
Supply to dwelling
2. PRODUCT DESCRIPTION
The DC Heat Recovery MVHR unit is a mechanical ventilation/heat recovery (MVHR) unit for domestic and
commercial applications. It is designed for connection to 125mm-diameter ducting.
The unit’s two fans and heat exchanger arrangement simultaneously supply and extract air while transferring heat
from the stale exhaust airflow to the fresh intake airflow. This provides up to 91% heat recovery from the stale
extracted air.
Separation of the exhaust airflow and intake airflow is maintained throughout the unit.
The fan motors have maintenance free, self lubricating long life bearings and are fitted with thermal overload
protection, which in the event of a fault causing a motor to overheat will cut off the electrical supply to that motor. If this
occurs, isolate the unit, check for any obstructions, leave the unit for a short time for the motor to cool before
reconnecting the power supply. If the fault reoccurs, isolate the power supply and call a service engineer.
The fans in this unit are low energy EC motors with a constant (100% adjustable) air volume.
The EU3 filters in the unit ensure that the fresh supply air is clean as it enters the home. Also the extract air from the
property is filtered to protect the heat exchanger from unwanted contamination. Check filters regularly and clean if
necessary.
The unit is delivered complete with a mounting plate, fitting instructions, fixing kit and a condensation discharge fitting.
Left Hand configuration shown
Condensate exit on
Atmosphere side
(See connecting the
condensate drain section).
Front Panel
Filter access covers
Filters
