10
Technical data
Installation and maintenance instructions
59
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
Fig. 10-9
Characteristic of the pressure sensor (DS)
Item
Designation
P
Water pressure
U
Voltage
Tab. 10-20 Legend for
10.2.2
Characteristic curves for pumps
0
100
200
300
400
500
600
700
800
0
200
400
600
800
1000
1200
1400
1600
1800
2000
∆
p
/
m
b
a
r
m / L/h
H
R
100%
50%
75%
Fig. 10-10 Residual head of the internal heating circulation pump
with heating support heat exchanger
Item
Designation
ΔP
R
Residual head of internal heating circulation pump
m
H
Flow rate of heating system
Tab. 10-21 Legend for
10.3
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
10.4
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 ).
▪ 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
) from with the floor area
of the installation room (A
room
) and the adjacent room (A
room2
).
▪ 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 coolant quantity (dm) exceeding m
max
: dm = m
c
– m
max
4
Calculate the minimum opening range (VA
min
) for natural ventila-
tion between the installation room and the adjacent room (see ).
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 bottom opening must meet the require-
ments for the minimum opening range (VA
min
). 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 opening area 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)
28
1,814
29
1,846
30
1,877
31
1,909
Tab. 10-23 Maximum refrigerant filling permitted in a room
m
c
(kg)
Minimum floor area A
min
(m²)
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
