Installation manual
41
E(D/B)(H/L)Q011~016BB
Unit for air to water heat pump system
4PW67904-1 – 01.2011
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].
[A] Quiet mode
This field setting allows to select the desired quiet mode. Two quiet
modes are available: quiet mode A and quiet mode B.
In quiet mode A, priority is given to the unit operating quietly under all
circumstances. Fan and compressor speed (and thus performance)
will be limited to a certain percentage of the speed at normal
operation. In certain cases, this might result in reduced performance.
In quiet mode B, quiet operation might be overridden when higher
performance is required. In certain cases, this might result in less
quiet operation of the unit to meet the requested performance.
■
[A-00] Quiet mode type: defines whether quiet mode A (0) or
quiet mode B (2) is selected.
■
[A-01] Parameter 01: do not change this setting. Leave it set
to its default value.
[C] Setup on EKRP1HB digital I/O PCB
Solar priority mode
■
[C-00] Solar priority mode setting: for information concerning
the EKSOLHW solar kit, refer to the installation manual of
that kit.
Alarm output logic
■
[C-01] Alarm output logic: defines the logic of the alarm
output on the EKRP1HB digital I/O PCB.
[C-01]=0, the alarm output will be powered when an alarm
occurs (default).
[C-01]=1, the alarm output will not be powered when an
alarm occurs. This field setting allows for distinction between
detection of an alarm and detection of a power failure to the
unit.
Bivalent operation
Applies only to installations with an auxiliary boiler (alternating
operation, parallel connected). The purpose of this function is to
determine – based on the outdoor temperature – which heating
source can/will provide the space heating, either the Daikin unit or an
auxiliary boiler.
The field setting "bivalent operation" applies only to the unit space
heating operation and the permission signal for the auxiliary boiler.
When the "bivalent operation" function is enabled, the unit will stop
automatically in space heating operation when the outdoor
temperature drops below "bivalent ON temperature" and the
permission signal for the auxiliary boiler becomes active.
When the bivalent operation function is disabled, the space heating
by unit is possible at all outdoor temperatures (see operation ranges)
and permission signal for auxiliary boiler is always disactivated.
■
[C-02] Bivalent operation status: defines whether bivalent
operation is enabled (1) or disabled (0).
■
[C-03] Bivalent ON temperature: defines the outdoor
temperature below which the permission signal for the
auxiliary boiler will be active (closed, KCR on EKRP1HB) and
space heating by unit will be stopped.
■
[C-04] Bivalent hysteresis: defines the temperature difference
between bivalent ON temperature and bivalent OFF
temperature.
Permission signal X1–X2 (EKRP1HB)
T
A
Outdoor temperature
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.
NOTICE
Do not set other values than the ones mentioned.
[9-06]
[9-07]
B
A
T
t
55
°
C
53
°
C
2
°
C [9-08]
[C-01]
Alarm
No alarm
No power supply
to unit
0
(default)
Closed output
Open output
Open output
1
Open output
Closed output
Open output
CAUTION
Make sure to observe all rules mentioned in
application 5 when bivalent operation function is
enabled.
Daikin shall not be held liable for any damage
resulting from failure to observe this rule.
T
A
[C-03]
[C-04]
closed
open
