8
18. 10. 17. Leaflet Number 671508
Installation, Operating and Maintenance Instructions
XBOXER 55
5.0 Wiring (Units with Ecosmart
Control)
The electrical wiring must be carried out by competent persons, in
accordance with good industry practice and should conform to all
governing and statutory bodies i.e. IEE, CIBSE, COHSE etc.
Connections
a)
Control Connections
Net
- the 4 IDC plug-in connectors are provided for the connection
of compatible sensors, manual controls and for linking the fans
together under a common control. If more than 4 connections are
required, the junction box (product code ES-JB) should be used
(see data cable installation).
Switch Live (SL) terminal
- A signal of 100-230V a.c. will activate
the fan (required at each control).
Note that a signal from an isolating transformer will produce
an unpredictable result and is not recommended.
b)
Damper Connections
OP
-
230V 50Hz 1A max supply to open the damper
CL
-
230V 50Hz 1A max supply to close the damper
N
-
Neutral supply to damper
RET
-
230V ac return signal from the damper limit switch
indicates
the damper has reached its operating position.
If the return signal is not present, the fan will wait for 1 minute
before starting.
Note: If a damper is not fitted, connect a link wire from OP to
RET. This will cancel the delay.
Where units are supplied in modular sections, it will be necessary to
install and connect mains wiring between controls and devices
such as motorised dampers, it may also be necessary to install and
connect mains wiring between sensors and actuators.
Depending on final damper location, extension of the cable looms
may be required.
c) Volt Free Relay Contacts
Note that the volt free contacts are not fused. If these are used to
power any external equipment, the installer must provide adequate
fusing or other protections.
These contacts are rated at 5A resistive, 0.5A inductive.
Run connections
- These contacts are closed when the fan is
running.
Fault connections
- No fault = the contacts are closed.
Fault
= the contacts are opened.
Heat demand -
contacts closed when heating is selected.
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.
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
Wiring with Ecosmart fan only control. Figure 14.
230V - 50Hz Supply
Local isolator (by others)
L
N
N
L
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.
Damper Connections
Heat Demand
Signal
Run
Signal
Fault
Signal
Damper Connections
Run
Signal
Fault
Signal
NET
connections
for Ecosmart
devices
Min Max SL run
on
Trickle
Test
0
1
Link wire see note*
ES-CO2
Connection
BMS
Input
Signal
0-1
0V
0V
Ecosmart
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
TX
RX
Extract
N
E
L
SL
DP
CL
N
RET
Heat
Demand Run
Fault
NET
connections
for Ecosmart
devices
Min
Max SL run
on
Trickle
Test
0
1
Link wire see note*
ES-CO2
Connection
BMS
Input
Signal
0-1
0V
0V
Ecosmart
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
TX
RX
Supply
N
E
L
SL
DP
CL
N
RET
Heat
Demand Run
Fault
*Remove link wire if switched live signal, an enabler or BMS
signal is connected.
Wiring diagrams for units with Ecosmart Control
Fans without
Fans with
Electric Heater
Electric Heater
Unit
flc
Unit
flc
Code
(amps)
Code
(amps)
XB55-*N/L
2 X 3.5
XB55-*E
18.7
