Daikin Altherma 3 R ECH2O, Installation And Operating Manual

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6 Technical data
Installation and operating manual
34
Daikin Altherma EHS(X/H)(B)-D
Daikin Altherma 3 R ECH ₂ O
008.1451099_00 – 07/2020
6‒2 Characteristic of temperature sensor t
DHW1
, t
V, BH
R
S
Sensor resistance (NTC)
t Temperature
t
DHW1
Storage tank temperature sensor
t
V, BH
Backup heater flow temperature sensor
6‒3 Characteristic of temperature sensor t
R
, t
V
, t
DHW2
, t
DC
R
S
Sensor resistance (NTC)
t Temperature
t
DC
Temperature sensor liquid line (refrigerant)
t
DHW2
Storage tank temperature sensor 2
t
R
Return temperature sensor
t
V
Flow temperature sensor
6‒4 Characteristic of the pressure sensor (DS)
p Water pressure
U Voltage
6.2.2 Characteristic curves for pumps
6‒5 Residual head of the internal heating circulation pump
Δp
R
Residual head of internal heating circulation pump
m
H
Flow rate of heating system
6.3 Tightening torques
6‒2 Tightening torques
Component Thread size Tightening
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)
6.4 Minimum floor area and ventilation
openings
CAUTION
The use of refrigerant piping that has already been used
can lead to damage to the unit.
▪ Do not reuse refrigerant piping that has been used with
another refrigerant. Replace or carefully clean the
refrigerant piping.
▪ If the total refrigerant charge in the system is <1.84 kg, there are
no further requirements.
▪ If the total refrigerant charge in the system is ≥1.84 kg, other
minimum 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 " 6‒3 Maximum refrigerant filling permitted
in a room" [
4
35]).
▪ 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.