Electrical Details - NuAire XBOXER Installation And Maintenance Manual

Installation and Maintenance
d) Data Cable Installation
A 4-core SELV data cable is used to connect devices.
Do not run data cable in the same conduit as the mains cables
and ensure there is a 50mm separation between the data cable
and other cables. The maximum cable run between any two
devices is 300m when it is installed in accordance with the
instructions.
Please note that the total data cable length used in any
system must be less than 1000m. Keep the number of cable
joints to a minimum to ensure the best data transmission
efficiency between devices.
e) Maximum Number of Devices
The maximum number of devices (including fans) that can
be connected together via the cable is 32, irrespective of their
functions.
Wiring - for units with Ecosmart Control cont.
Wiring - Unit sizes XB2-5 with Ecosmart fan only control. Figure 13.
Ecosmart
Min Max SL run
ES-CO2 BMS
Connection Input
Signal
Extract
0 1
Trickle
Link wire see note*
Damper Connections
L
N
N
230V - 50Hz Supply
L
Local isolator (by others)
Pwr
Standby
Fan 1
NET
Fan 2
on
Heating
connections
Cooling
for Ecosmart
Fault
devices
Frost
TX
RX
Test
Heat
Demand Run Fault
Run Fault
Signal Signal
f) Other Low Voltage Cables
Follow the basic principle (as d). Keep the cable run as short as
possible, less than 50 metres. Use screened cable if cable
length is more than 2m.

Electrical Details

Fans without
Electric Heater
Unit flc
Code (amps)
XB2-*N/L 1.7
XB3-*N/L 1.9
XB4-*N/L 2.8
XB5-*N/L 3.3
ES-CO2 BMS
Connection Input
Signal
Link wire see note*
Damper Connections
All inter-connections between circuit boards, blowers and
sensors are made at the factory. This diagram only shows the
essential field wiring points for clarity.
*Remove link wire if switched live signal, an enabler or BMS
signal is connected.
5
XBOXER (XB2-5)
Fans with
Electric Heater
Unit flc
Code (amps)
XB2-*E 22
XB2-*E 22
XB2-*E 23
XB2-*E 24
Ecosmart
Pwr
Standby
Fan 1
NET
Min Max SL run Fan 2
on
Heating connections
Cooling
for Ecosmart
Supply Fault
devices
Frost
0 1
TX
RX
Trickle Test
Heat
Demand Run Fault
Heat Demand Run
Fault
Signal Signal
Signal
continued on page 6.
25. 01. 17. Leaflet Number 671440