Installation manual
34
EKCBX/H008BBV3
Unit for air to water heat pump system
4PW66983-1C – 08.2011
Confirm option setting
■
[d-04] Confirm option setting. Default [d-04]=0 (no option
connected). In case a backup heater is connected, [d-04]
needs to be set to 1.
[E] Unit information readout
■
[E-00] Readout of the software version (example: 23)
■
[E-01] Readout of the EEPROM version (example: 23)
■
[E-02] Unit model identification
By default, the unit is set as a unit without backup heater
installed. In case an EKMBUH backup heater is added to the
system, [E-02] needs to be changed by performing the following
steps:
1
Change field setting [E-02] according to the applicable model
(see table above).
2
To confirm the connected option, set field setting [d-04] to 1.
3
Turn space cooling/heating and domestic hot water operation
OFF.
4
Switch OFF the power.
5
After waiting for a minimum of 15 seconds, switch ON the
power again.
■
[E-03] Readout of the liquid refrigerant temperature
■
[E-04] Readout of the inlet water temperature
[F] Option setup
Pump operation
The pump operation field setting apply to the pump operation logic
only when DIP switch SS2-3 is OFF.
When the pump operation function is disabled the pump will stop if
the outdoor temperature is higher than the value set by [4-02] or if the
outdoor temperature drops below the value set by [F-01]. When the
pump operation is enabled, the pump operation is possible at all
outdoor temperatures. Refer to
"12.3. Pump operation configuration"
■
[F-00] Pump operation: specifies wether the pump operation
function is enabled (1) or disabled (0).
Space cooling permission
■
[F-01] Space cooling permission temperature: defines the
outdoor temperature below which space cooling is turned off.
Bottom plate heater control
Applies only in case the option bottom plate heater kit is installed.
■
[F-02] Bottom plate heater ON temperature: defines the
outdoor temperature below which the bottom plate heater will
be activated by indoor unit in order to prevent ice build-up in
the bottom plate of the outdoor unit at lower outdoor
temperatures.
■
[F-03]
Bottom plate heater hysteresis: defines the
temperature difference between bottom plate heater ON
temperature and the bottom plate heater OFF temperature.
Bottom plate heater
Functionality of X14A
■
[F-04] Functionality of X14A: specifies if the logic of X14A
follows the output signal for the solar kit model (EKSOLHW)
(0) or if the logic of X14A follows the output for the bottom
plate heater (1).
[d-03]
Outdoor temperature range (T
A
)
Local shift value
0
—
—
1
–2°C~2°C
2
2
4
3
–4°C~4°C
2
4
4
[E-02] value
without EKMBUH
(a)
(a) Default setting
with EKMBUH
EKCBX
0
13
EKCBH
16
29
NOTICE
Setting [E-02] can only be adjusted in the first
3 minutes after the power is swiched ON.
NOTICE
[E-03] and [E-04] readouts are not permanently
refreshed. Temperature readouts are updated after
looping through the field setting first codes again only.
INFORMATION
This function is only valid for EKCBX when space
cooling is selected.
T
A
Outdoor temperature
CAUTION
The bottom plate heater is controlled via X14A. Make sure
[F-04] is correctly set.
INFORMATION
Independent from field setting [F-04], the contact X3-X4
(EKRP1HB) follows the logic of the output signal for the
solar kit model (EKSOLHW). See figure below for the
schematic location of this contact.
T
A
[F-02]
[F-03]
ON
OFF
YC Y1 Y2 Y3 Y4
X1
X2
X3
X4
OFF ON
X2M
SS1
X1M
