10
Technical data
Installation and maintenance instructions
60
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
10.4
Tightening torque
Component
Thread size Tighten-
ing
torque in
Nm
Temperature sensor
all
Max. 10
Hydraulic line connections (water)
1"
25 – 30
Gas line connections (refrigerant)
5/8"
63 – 75
Fluid line connections (refrigerant)
1/4"
15 – 17
Fluid line connections (refrigerant)
3/8"
33 – 40
Backup heater
1.5"
Max. 10
(handtight
)
Tab. 10-22 Tightening torque
10.5
Minimum floor area and ventilation
openings
CAUTION
The use of refrigerant lines that have already been used
can lead to damage to the unit.
▪ Do not reuse a refrigerant line that has been used with
another refrigerant. Replace or carefully clean the refri-
gerant line.
▪ If the total refrigerant charge in the system is < 1.84 kg, there are
no further requirements.
▪ f the total refrigerant charge in the system is ≥ 1.84 kg, other min-
imum floor space requirements must be met:
1
Compare the total refrigerant charge in the system (m
c
) with the
maximum refrigerant filling (m
max
) permitted for the installation
room (A
room
), (see
Tab. 10-23
).
▪ If m
c
≤ m
max
: The device can be installed in this room without
any further requirements.
▪ If m
c
> m
max
: Proceed with the following steps.
2
Compare the minimum floor area (A
min
) with the floor area of the
installation room (A
room
) and the adjacent room (A
room2
) (see
Tab. 10-24
).
▪ If A
min
≤ A
room
+ A
room2
: Proceed with the following steps.
▪ If A
min
> A
room
+ A
room2
: Contact your local dealer.
3
Calculate the refrigerant quantity (dm): dm = 1.9 – m
max
(take
m
max
Tab. 10-23
from the A
room
for the available size of the install-
ation room)
4
For calculated dm, take the minimum area of the ventilation
opening (VAmin) for natural ventilation between the installation
room and the adjacent room
Tab. 10-25
.
5
The device can be installed if:
–
2 ventilation openings are provided between the installation
room and adjacent room (1 each at top and bottom)
–
Bottom opening: The lower opening must meet the require-
ments for the minimum area of the ventilation opening
(VAmin). It must be as close to the ground as possible. If the
ventilation opening starts on the floor, the height ≥ must be
20 mm. The bottom of the opening must be ≤ 100 mm above
the floor. At least 50 % of the required minimum area of the
ventilation opening (VAmin) must be < 200 mm from the
floor. The entire area of the opening must be < 300 mm from
the floor.
–
Upper opening: The area of the upper opening must be lar-
ger or the same size as the lower opening. The bottom of
the upper opening must be at least 1.5 m above the top
edge of the lower opening.
–
Ventilation openings to the outside are not considered suit-
able ventilation openings.
A
room
(m
2
)
Maximum refrigerant filling permitted in a
room (m
max
) (kg)
1
0.14*
2
0.28*
3
0.41*
4
0.55*
5
0.69*
6
0.83*
7
0.90*
8
0.97*
9
1.02*
10
1.08*
11
1.13*
12
1.18*
13
1.23*
14
1.28*
15
1.32*
16
1.37*
17
1.41*
18
1.45*
19
1.49*
20
1.53*
21
1.56*
22
1.60*
23
1.64*
24
1.67*
25
1.71*
26
1.74*
27
1.77*
28
1.81*
29
1.84
30
1.87
31
1.90
Tab. 10-23 Maximum refrigerant filling permitted in a room
▪ * Values are only required for step 3 (calculation of dm).
m
c
(kg)
Minimum floor area A
min
(m
2
)
1.84
28.81
1.86
29.44
1.88
30.08
1.90
30.72
Tab. 10-24 Minimum floor area of indoor unit
dm (kg)
Minimum area of the ventilation opening
(VA
min
) (cm
2
)
1.76
716
1.63
662
1.49
605
1.35
549
1.21
493
Summary of Contents for Altherma 3 ECH2O
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