Operation Range; Operation Range: Indoor Unit - Daikin EGSQH10S18AA9W Installer's Reference Manual

14 Technical data
For connection with M2S
For connection with user interface
For connection with optional FWXV (demand input
and output)
(a) Select diameter and type according to national and local regulations.
(b) Depends on the type of thermostat. See the installation manual of the thermostat.
(c) Voltage: 230 V / maximum current: 100 mA / minimum 0.75 mm
14.7

Operation range

14.7.1

Operation range: Indoor unit

Space heating
A (°C)
25
20
15
10
5
0
0 10
–5
–10
A Entering brine temperature
B Leaving condenser water temperature
Only backup heater operation if the set point is <24°C.
Heat pump operation (assisted by backup heater if capacity shortage)
Heat pump + backup heater operation
Protect against freezing by adding anti-freeze to brine side. See also remark.
Remark: By default settings, the unit will allow operation with
entering brine temperatures to –5°C. As a result, the brine freezing
temperature may not be higher than –15°C. For water – ethanol
mixtures this corresponds to 29% ethanol (by mass), for water –
propylene glycol mixtures this corresponds to 40% propylene glycol
(by volume).
If the freezing temperature of the medium is higher than –15°C, then
protection level of unit MUST be increased by field setting.
Refer to the installation manual and/or installer reference guide for
instructions how to set a different freeze temperature of the medium
(Tf) in the controller.
The unit will NOT operate at an entering brine temperature lower
than Tf+10K.
Installer reference guide
82
Quantity of wires
Type of wires
Quantity of wires
Type of wires
Quantity of wires
Type of wires
20 30 40
0.75~1.25 mm (maximum length 500 m)
2
50 60
4D083081-1A
Tf=changeable between 0°C and –15°C.
3G
(a) (c)
Note and Note
2
4
2
Minimum 0.75 mm (100 mA)
70
B (°C)
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02