EKHBRD011~Y1
Indoor unit for air to water heat pump system and options
4PW60971-1
Operation manual
6
Field settings de
fi
ne the parameters for the weather dependent
operation of the unit. Refer to the chapter "Field settings" on page 15
for a detailed description how to set one or more
fi
eld settings.
■
[3-00]
Low ambient temperature (Lo_A): low outdoor
temperature.
■
[3-01]
High ambient temperature (Hi_A): high outdoor
temperature.
■
[3-02]
Set point at low ambient temperature (Lo_Ti): the target
outgoing water temperature when the outdoor temperature
equals or drops below the low ambient temperature (Lo_A).
Note that the Lo_Ti value should be higher than Hi_Ti, as for
colder outdoor temperatures (i.e. Lo_A) warmer water is required.
■
[3-03]
Set point at high ambient temperature (Hi_Ti): the target
outgoing water temperature when the outdoor temperature
equals or rises above the high ambient temperature (Hi_A).
Note that the Hi_Ti value should be lower than Lo_Ti, as for
warmer outdoor temperatures (i.e. Hi_A) less warm water
suf
fi
ces.
Automatic setback function
Setback function provides the possibility to lower the room
temperature. The setback function can for instance be activated
during the night because the temperature demands during night and
day are not the same.
The setback function is con
fi
gured through
fi
eld settings. Refer to the
chapter "Field settings" on page 15 for a detailed description how to
set one or more
fi
eld settings.
■
[2-00]
Status: de
fi
nes whether the setback function is turned ON
(1) or OFF (0)
■
[2-01]
Start time: time at which setback is started
■
[2-02]
Stop time: time at which setback is stopped
■
[5-02]
Leaving water setback temperature (temperature drop)
Domestic water heating operation (
w
)
For the domestic water heating mode, several operations are
possible:
•
storage operation (either automatic or manually set)
•
reheat operation
•
disinfection operation
The purpose of each operation, and how the con
fi
guration is done, is
explained below.
Domestic water heating modes
T
t
Target water temperature
T
A
Ambient (outdoor) temperature
= Shift value
NOTE
If by mistake the value of [3-03] is set higher than the
value of [3-02], the value of [3-03] will always be used.
NOTE
■
Remark that the
b
icon will be
fl
ashing during
setback operation.
■
By default the setback function is enabled.
■
The setback function can be combined with the
automatic weather dependent set point operation.
■
Setback function is an automatic daily scheduled
function.
Lo_Ti
Lo_A
Hi_A
T
A
T
t
+ 05
00
– 05
Hi_Ti
Shift value
A
Normal leaving water temperature set point
B
Leaving water temperature, including the leaving water setback
temperature
t
Time
T
Temperature
NOTE
Any domestic water heating operation is impossible
when the domestic hot water tank is not installed.
A
Storage operation (if activated)
B
Reheat operation (if activated)
C
Disinfection operation (if activated)
Field settings
D
Disinfection operation temperature [5-00] (e.g. 70°C)
E
Hot water storage temperature [b-03] (e.g. 60°C)
F
Reheat maximum water temperature [b-01] (e.g. 45°C)
G
Reheat minimum water temperature [b-00] (e.g. 35°C)
t
Time
T
Domestic hot water tank temperature
[2-01]
[2-02]
B
A
T
t
65
°
C
60
°
C
5
°
C [5-02]
A
B
C
D
E
F
G
T
t
[5-01]
