8 Configuration
Installer reference guide
50
EWAQ+0 EK(2)CB
EKMB9W1
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492901-1 – 2017.06
#
Code
Description
[A.2.2.B]
[C-08]
External sensor (outdoor):
When an optional external ambient
sensor is connected, the type of the
sensor must be set. See
"5 Application
guidelines" on page 12
.
▪ 0 (No)(default): NOT installed. The
thermistor in the user interface and in
the outdoor unit are used for
measurement.
▪ 1 (Outdoor sensor): Remote outdoor
sensor, connected to the outdoor unit.
The outdoor sensor will be used to
measure
the
outdoor
ambient
temperature.
Remark:
For some
functionality, the temperature sensor
in the outdoor unit is still used.
▪ 2 (Room sensor): Remote indoor
sensor, connected to option box
EK2CB07CAV3.
The
temperature
sensor in the user interface is NOT
used anymore.
Remark:
This value
has only meaning in room thermostat
control.
INFORMATION
You can only connect either the remote indoor sensor or
the remote outdoor sensor.
Control box EKCB07CAV3
Modification of these settings is only required when optional control
box EKCB07CAV3 is installed. Control box EKCB07CAV3 has
multiple functionalities which need to be configured. See
"5 Application guidelines" on page 12
.
#
Code
Description
[A.2.2.E.1]
[E‑03]
Backup heater steps:
▪ 0 (default)
▪ 1
▪ 2
[A.2.2.E.2]
[5-0D]
BUH type:
▪ 1 (1P,(1/1+2)): 6 kW 1~ 230 V
(default)
▪ 4 (3PN,(1/2)): 6 kW 3N~ 400 V (*9W)
▪ 5 (3PN,(1/1+2)): 9 kW 3N~ 400 V
(*9W)
The system allows for the connection of 2 types of backup heater
kits:
▪ EKMBUHCA3V3: 1~ 230 V - 3 kW backup heater
▪ EKMBUHCA9W1: Unified backup heater
Backup heater EKMBUHCA3V3 can only be configured to be a 3V3
backup heater. Unified backup heater EKMBUHCA9W1 can be
configured in 4 ways:
▪ 3V3: 1~ 230 V, 1 step of 3 kW
▪ 6V3: 1~ 230 V, 1st step = 3 kW, 2nd
step = 3+3 kW
▪ 6W1: 3N~ 400 V, 1st
step = 3 kW, 2nd
step = 3+3 kW
▪ 9W1: 3N~ 400 V, 1st
step = 3 kW, 2nd
step = 3+6 kW
To configure the backup heater (both EKMBUHCA3V3 and
EKMBUHCA9W1), combine settings [E‑03] and [5‑0D]:
Backup heater
configuration
[E-03]
[5-0D]
3V3
1
1 (1P,(1/1+2))
6V3
2
1 (1P,(1/1+2))
6W1
2
4 (3PN,(1/2))
9W1
2
5 (3PN,(1/1+2))
#
Code
Description
[A.2.2.E.5]
[C-05]
Contact type main
In external room thermostat control, the
contact type of the optional room
thermostat for the main leaving water
temperature zone must be set. See
"5 Application guidelines" on page 12
.
▪ 1 (Thermo ON/OFF) (default): The
connected external room thermostat or
heat pump convector sends the
heating or cooling demand by the
same signal as it is connected to only
1 digital input (preserved for the main
leaving water temperature zone) on
the control box (X2M/1).
▪ 2 (H/C request): The connected
external
room
thermostat
sends
separate heating and cooling demand
and is therefore connected to the 2
digital input (preserved for the main
leaving water temperature zone) on
the control box (X2M/1 and 1a). Select
this value in case of connection with
the wired (EKRTWA) or wireless
(EKRTR1) room thermostat.
Option box EK2CB07CAV3
Modification of these settings is only required when option box
EK2CB07CAV3 is installed. Option box EK2CB07CAV3 has multiple
functionalities which need to be configured. See
"5 Application
guidelines" on page 12
.
#
Code
Description
[A.2.2.F.1]
[C-02]
Ext. backup heat src
Indicates if the space heating is also
performed by means of another heat
source than the system.
▪ 0 (No)(default): NOT installed.
▪ 1 (Bivalent): Installed. The auxiliary
boiler (gas boiler, oil burner) will
operate when the outdoor ambient
temperature is low. During bivalent
operation, the heat pump is turned
OFF. Set this value in case an
auxililary
boiler
is
used.
See
"5 Application guidelines" on page 12
.
▪ 2: N/A
▪ 3: N/A
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