Daikin EKHWET-BV3, Installer'S Reference Manual

Page: 33 / 120

7 | Unit installation
Installer reference guide
33
E120B
R32 Split series – Domestic hot water tank
4P680077-1A – 2022.11
Calculate the total floor area.
( A
total
=A
roomA
+A
roomB
)
See table 4: Look up the minimum bottom opening area for natural
ventilation with the adjacent room (
A
nv-min
) for the given refrigerant charge,
the given floor area of room A ( A
roomA
) [! NOT room A + room B !] and the
given release height ( H1 ).
Is it practically feasible to
create ventilation openings that comply
with A
nv-min
and with the "Conditions ventilation
openings" on previous page)?
See table 1:
Is the total floor area
(Atotal) large enough for the given refrigerant
charge and the given
release height?
Yes
No
No
Yes
You CANNOT install the unit in the room.
Place unit in a larger room or higher position
(see table 2 to select adequate release height)
A
nv
, A
nv-min
A B
You can install the unit in room A if you create ventilation
openings.
Ventilation openings must comply with
A
nv-min
and with
"Conditions ventilation openings" on previous page).
2a
A
nv
(≥A
nv-min
)
Min. 50%
of A
nv-min
Start PATTERN 2
Tables for PATTERN 1 and 2
Table 1: Minimum floor area
Take the following into account:
• For intermediate floor areas, use the column with the lower value. Example: If the floor area is 1.7 m², use the
column of 1.65 m².
• For intermediate refrigerant charges, use the row with the higher value. Example: If the refrigerant charge is
2.35 kg, use the row of 2.4 kg.
Minimum floor area (m²)
Charge (kg) Release height (m)
1,23 1,35 1,50 1,65 1,80 1,95 2,10 2,25 2,40 2,55 2,70
2.2 9,81 8,14 6,60 5,80 5,31 4,90 4,55 4,25 3,99 3,75 3,54
2.3 10,72 8,90 7,21 6,06 5,55 5,13 4,76 4,44 4,17 3,92 3,70
2.4 11,67 9,69 7,85 6,49 5,80 5,35 4,97 4,64 4,35 4,09 3,87
2.5 12,66 10,51 8,52 7,04 6,04 5,57 5,18 4,83 4,53 4,26 4,03
2.6 13,70 11,37 9,21 7,61 6,40 5,80 5,38 5,02 4,71 4,43 4,19