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HRV
22.2 Function description
HRV will make the sufcient heat exchange by air inlet and air discharging, and compensate the energy loss in the
course of getting fresh air to the max. limit. Meanwhile the latent heat exchanger will perform good efciency to
control the indoor humidity. The HRV can be used individually, also can be used in combination with the indoor unit
of MRVII to reach the effect of air adjustment and get fresh air.
Flow volume selection Air volume selection Indoor/outdoor motor state Remarks
Flow volume to indoor
=Flow volume to outdoor
Low speed
Indoor motor low speed
outdoor motor low speed
Default mode
High speed
Indoor motor med speed
outdoor motor med speed
Flow volume to indoor
>Flow volume to outdoor
Low speed
Indoor motor low speed
outdoor motor med speed
The two modes can be set
due to the user's request
before out of factory.
High speed
Indoor motor med speed
outdoor motor high speed
Flow volume to indoor
<Flow volume to outdoor
Low speed
Indoor motor med speed
outdoor motor low speed
High speed
Indoor motor high speed
outdoor motor med speed
You can select different operation mode according to the different environment, for example, to avoid the funk or
humidity from toilet or kitchen into indoor side, select the mode of "ow volume to indoor>ow volume to outdoor";
to avoid the abnormal smell from the sickroom or the air with virus into the lobby, select the mode of "ow volume to
indoor<ow volume to outdoor".
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