Installation manual
35
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
■
[8-04]
Additional running time at [4-02]/[F-01]: specifies the
additional running time on the maximum running time at
outdoor temperature [4-02] or [F-01]. See figure below.
t
Time
T
A
Ambient (outdoor) temperature
Anti-recycle time
Maximum running current
[9] Heating and cooling set point ranges
The purpose of this field setting is to prevent the user from selecting
a wrong (i.e., too hot or too cold) leaving water temperature. Thereto
the heating temperature set point range and the cooling temperature
set point range available to the user can be configured.
■
[9-00] Heating set point upper limit: maximum leaving water
temperature for heating operation.
■
[9-01] Heating set point lower limit: minimum leaving water
temperature for heating operation.
■
[9-02] Cooling set point upper limit: maximum leaving water
temperature for cooling operation.
■
[9-03] Cooling set point lower limit: minimum leaving water
temperature for cooling operation.
■
[9-04] Overshoot setting: defines how much the water
temperature may rise above the set point before the
compressor stops. This function is only applicable in heating
mode.
Automatic setback function
Setback function provides the possibility to lower the water
temperature during space heating. The setback function can for
instance be activated during the night because the temperature
demands during night and day are not the same.
■
[9-05] Defines whether the setback function is turned ON (1)
or OFF (0)
■
[9-06] Start time: time at which setback is started
■
[9-07] Stop time: time at which setback is stopped
■
[9-08] Leaving water setback value
A
Normal leaving water temperature set point or calculated
weather depended set point
B
Calculated leaving water setback temperature set point
t
Time
T
Temperature
In case the EKHW* is installed and [4-03]=4 or the EKHTS tank is
installed, it is advised to set the start time of automatic storage during
night [6-04] on the moment that the setback function starts [9-06].
Heating
Cooling
INFORMATION
Only for EKHW*: The full advantage of [8-04] will be
applicable if setting [4-03] is not 1.
CAUTION
■
In case of a floor heating application, it is important to
limit the maximum leaving water temperature at
heating operation according to the specifications of
the floor heating installation.
■
In case of a floor cooling application, it is important to
limit the minimum leaving water temperature at
cooling operation (field setting of parameter [9-03]) to
16~18°C to prevent condensation on the floor.
t
T
A
t
T
A
0
[8-01]
[5-03]
[4-02]
[8-02]
[8-01]+
[8-04]
0
[8-01]
[F-01]
35
°
C
[8-02]
[8-01]+
[8-04]
INFORMATION
■
Remark that the
b
icon will be flashing during setback
operation. The calculated leaving water setback set
point is
not
shown during setback operation.
■
By default the setback function is disabled.
■
The setback function can be combined with the
automatic weather dependent set point operation.
■
Setback function is an automatic daily scheduled
function.
■
The setback function can be combined with the
schedule timer. When setback is active, the scheduled
space heating set point will be lowered with the [9-08]
leaving water setback value.
INFORMATION
Pay attention not to set the setback value too low,
especially during colder periods (e.g. winter time). It is
possible that the room temperature can not be reached (or
it will take a much longer time) because of the big
temperature difference.
[9-06]
[9-07]
B
A
T
t
55
°
C
53
°
C
2
°
C [9-08]
