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Input from installer:
- Total refrigerant charge (m
- Area of room A (A
) (m
roomA
Use table 2 to calculate the
maximum refrigerant charge (m
allowed for room A.
m
≥mc?
max
yes
The unit can be installed in room A, and
without further room size or ventilation
requirements.
Unit can be installed at room A if:
- 2 ventilation openings (permanently open) are provided between room A and B, 1 at the top and 1 at the bottom.
- Bottom opening:The bottom opening must meet the minimum area requirements(VA
opening starts from the floor, the height must be ≥20mm. The bottom of the opening must be situated≤100mm from the floor. At least 50% of the required
opening area must be situated <200 mm from the floor. The entire area of the opening must be situated <300 mm from the floor.
- Top opening:The area of the top opening must be larger than or equal to the bottom opening. The bottom of the top opening must be situated at least 1.5
m above the top of the bottom opening.
- Ventilation openings to the outside are NOT considered suitable ventilation openings (the user can block them when it is cold).
The flow chart uses the following tables:
Table. 2 - Maximum refrigerant charge allowed in a room
A [m
2
]
7
8
1,81
1,94
NOTE
For floor standing models, the value of "Installation height (H)" is considered 1200 mm to comply to IEC 60335-2-40:2022 Clause GG2. For intermediate
Aroom values(i.e. when A
is between two values from the table), consider the value that corresponds to the lower A
room
m
2
, consider the value that corresponds to "A
Table. 3 - Minimum floor area
1,9
2
2
A
[m
]
7,68
8,51
mintotal
EN
72
Input from installer:
- Area of adjacent room B (A
Use table 3 to calculate the
total minimum floor area (A
)(kg)
red for the total refrigerant charge (m
c
)
2
)(kg)
max
Determine the refrigerant amount that
exceeds m
no
Use table 4 and dm to calculate the
minimum opening area for natural
ventilation between room A and room
B(VA
)(cm
min
9
10
11
12
2,06
2,17
2,27
2,37
=3,5 m
2
".
room
2,1
2,2
2,3
2,4
9,38
10,30
11,26
12,26
Cod. 354M000010 - Rev. 03 - 06/2023
) (m
2
)
roomB
)(m
)requi-
2
mintotal
)
c
no
A
≤A
+A
?
min total
roomA
roomB
yes
(dm)(kg).(dm=m
-m
)
max
c
max
2
)
).It must be as close as possible to the floor.If the ventilation
min
13
14
2,47
2,57
2,5
13,30
OMNIA SW-T 3.2
Contact your dealer
value from the table. If A
room
=3,6
room