Daikin FXFN50A2VEB Installer And User Reference Manual page 51

16‒1 Description of access categories
Access category
General access
Supervised access
Authorized access
16‒2 Description of location classification
Location classification
Class I Mechanical equipment
located within the occupied
space
Class II Compressors in machinery
room or open air
Class III Machinery room or open air If all refrigerant-containing parts are located in a machinery room or
Class IV Ventilated enclosure
Appropriate measures
FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
4P677925-1 – 2021.07
Description
Rooms, parts of buildings, buildings
where:
▪ sleeping facilities are provided;
▪ people are restricted
movements;
▪ an uncontrolled number of people are
present;
▪ any person has access without being
personally acquainted
necessary safety precautions.
Rooms, parts of buildings, buildings
where only a limited number of people
may be assembled, some being
necessarily acquainted with the general
safety precautions of the location.
Rooms, parts of buildings, buildings
where only authorized persons have
access, who are acquainted with
general and special safety precautions
of the location and where
manufacturing, processing or storage of
material or products take place.
Description
If the refrigerating system or refrigerant-containing parts are located
in the occupied space, the system is considered to be of class I, unless
the system complies with the requirements of class II.
If all compressors and pressure vessels are either located in a
machinery room or in the open air, the requirements for a class II
location shall apply, unless the system complies with the
requirements of class III. Coils and pipework including valves may be
located in an occupied space.
in the open air, the requirements for a class III location shall apply.
The machinery room shall fulfil the requirements of EN 378-3.
If all refrigerant-containing parts are located in a ventilated
enclosure, the requirements for a class IV location shall apply. The
ventilated enclosure shall fulfil the requirements of EN 378-2 and EN
378-3.
INFORMATION
Appropriate measures are field supply. Choose and install all required appropriate
measures in accordance with EN 378-3:2016.
▪ (natural or mechanical) ventilation
Examples
Hospitals, courts or prisons, theatres,
supermarkets, schools, lecture halls, public
transport terminals, hotels, restaurants.
in their
with the
Business or professional offices, laboratories,
places for general manufacturing and where
people work.
Manufacturing facilities, e.g. for chemicals,
food, beverage, ice, ice cream, refineries,
cold stores, dairies, abattoirs, non-public
areas in supermarkets.
16 Unit installation
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Installer and user reference guide
51