Table of Contents
Advertisement
Electrical connection
7.6.3
Installation of the temperature sensor
The user interface in the delivery configuration automatically regulates
the flow temperature based on the outdoor temperature. A room
temperature-dependent controller can be installed for greater comfort.
7.6.4
Outdoor temperature sensor T1
The cable to the outdoor temperature sensor must meet the following
minimum requirements:
• Number conductors: 2
• Maximum length 30 m
▶ Install the sensor on the coldest side of the house, normally facing
north. The sensor must be protected against direct sunlight, air vents
or other factors which could affect the temperature measurement.
The sensor must not be installed directly under the roof.
▶ Connect the outdoor temperature sensor T1 to the terminal T1 on the
XCU-THH module within the electric box of the indoor unit.
Fig. 36 Position of the outdoor temperature sensor
7.6.5
Flow temperature sensor T0
The sensor is already installed in the indoor unit.
30
7.6.6
A complete overview of the appliance harnesses and connections can be
seen in section 13.2.1
This section (fig 37) explains the signals/wiring that may be required
during appliance installation.
N
NW
NE
W
E
SW
SE
S
Fig. 37 Connections XCU-THH (XCU HY)
[I1] (NOT USED)
[I2] External input 2: Blocks heating or DHW
[I3] External input 3: Heating circuit overheat protection (safety
[I4] (NOT USED)
[T1] Temperature sensor outdoor
[1]
[2]
The tightening torque of the screws for the connectors of the XCU-THH
must be 0.5Nm.
▶ Place a cable tie in front of each XCU-THH (XCU HY) connector.
6 720 809 156-23.1I
Fig. 38 Cable tie on connector
External connections in XCU-THH area for control & sensor
cables
ϑ ϑ
T1
I1
I2
I3
I4
CAN-Bus
2
To ODU
EMS-Bus
1
thermostat)
EMS-BUS accessory
CAN-BUS to heat pump
Pre plumbed cylinder – 6 721 852 928 (2023/04)
XCU-THH
0010048985-001
Advertisement
Table of Contents
