Frigate User’s Manual

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Table Of Contents

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UNIT DESIGN AND OPERATING PRINCIPLE

The unit operation is as follows: warm polluted air is extracted from indoor to the unit and is cleaned by the extract ﬁlter. Then the air

streams through the heat recovery core and is removed outside by the extract fan. The cold intake air from outside ﬂows into the unit

and is cleaned by the supply ﬁlter.

Further the air ﬂows through the heat recovery core and is supplied inside by the supply fan. The recovery core serves as a heat exchanger

for the warm extract air and cold intake air. The air streams remain fully isolated from each other. The heat recovery technology minimizes

heating costs during the cold season.

Assembly drawing for Frigate HRV/ERV 80 and air ow diagram in heat recovery mode

SPEED CONTROL

FUSE 1

FUSE 2

MEDLOW

STANDBY

1 2 3 4 5 6 7 8 910 1112

FUSE

AIR SUPPLIED TO ROOM

STALE AIR FROM ROOM

FRESH AIR FROM OUTSIDE

UTILIZED EXHAUST AIR

Supply fan

Supply ﬁlter

Extract ﬁlter

Swivel service panel

Condensate drain pipe

Control unit

Extract fan

Cross-ﬂow heat recovery core

Assembly drawing for Frigate HRV/ERV 80 EC and air ow diagram in heat recovery mode