3
x
Operation
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1420944 – 05/2014
Operating instructions
25
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.
3.6.3 Cooling characteristic curve
With the cooling characteristic curve, the inflow target temper-
ature is adjusted to suit building conditions in accordance with the
relevant external temperature (weather-controlled flow temper-
ature regulation, see section 3.6.4). Warmer outdoor tempera-
tures result in a colder inflow target temperature and vice versa.
Conditions for
cooling operation
:
– Outside temperature > Target room temperature setting
– Outside temperature > [Start T-Out Cooling] parameter set-
ting
– Operating mode
"Cooling"
activated.
a) with the rotary switch in the
"Operating Mode"
position or
b) via the room thermostat function (cooling
switching
contact closed)
– No heating demand active in the heating system.
The cooling characteristic curve is specified using the following
four parameters:
1. [Start T-Out Cooling]
2. [Max T-Out Cooling]
3. [T-Flow Cooling start]
4. [T-Flow Cooling max]
During the weather-controlled flow temperature regulation, the
user can adjust the inflow target temperature using the parameter
[Cooling Setpoint adj] by a maximum of 5°C up or down. The
lower temperature limit is limited by the parameter [Min T-Flow
Cooling].
Fig. 3-13 Manual setting of the heat curve (shown for "User" access
rights)
Configuration
Setup
System Configuration
Configuration
System Configuration
HC Configuration
DHW Configuration
HC Configuration
HC Function
T-Frost Protect
Heating
T-Outside lim night
Heat-Slope
Room Influence
Heat-Slope
Heat-Slope
Heat-Slope
HC Configuration
Insulation
Heating
Cooling
T
A
External temperature
T
R
Room temperature set value
T
V
Flow temperature
Fig. 3-14 Heat curves
