NuAire AVT-NC-R Series User Manual

7
27. 10. 20. Document Number 671590Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
AVT-(R/X)
Installation Manual
5.3.2 AVT 9
Damper Connections
Run
Signal
Fault
Signal
NET
connections
for Ecosmart
devices
Trickle
10
Link wire see note*
Test
ES-CO2
Connection
BMS
Input
Signal
0V
0-10V
Ecosmart
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
TX
RX
Frost
N
L
SL
DP
CL
N
RET
Heat
Demand
FaultRun
N L1 L2 L3
L3
L2
L1
N
400V - 3ph 50Hz Supply
Local isolator (by others)
E
Min Max SL run
on
19 AVT 9 Wiring
5.3.3 Control Module
Volt Free
Contact
RUN signal
0.5A inductive
5A resistive
Volt Free
Contact
Connections
FAULT signal
to Damper
N
L
SL
RUN FAULT
DP
CL
N
RET
400V 3ph 50Hz supply
Switch live signal
(if required)
connections
No user
NET connections for
ECOSMART devices
connections
CO
2
sensor
0
+ve signal
from BMS
Remove this link wire if
a switched live signal is
connected to terminal SL
NOTE: Also remove link if a
BMS is connected.
Also remove link if an enabling
device is connected in the 'NET'
ECOSMART NET
L3L2 L1 N
Ribbon cable
to commissioning
box
N L1 L2 L3
20
Control Module Wiring Diagram
5.4 BMS Input Signals
21
BMS Connector
0-10V 0V
BMS
BMS Input Signals and other low voltage cables should Follow the basic
principles set out in (Section 5.2.6).
The BMS connection is made with a plug-in connector via the socket
(Figure 21). To ensure the connection is made only by suitably qualified
and authorised personnel, the plug is not supplied. It is available from
R S Components, Part No. 403-875 or Farnell, Part No. 963-021.
Reversal of the BMS connection will damage the control.
The system’s response to a 0-10V dc BMS signal is given in the table
below. The voltage tolerance is +/- 125mV and is measured at the fans
terminal. The BMS signal will override any sensors and user control
connected in the system.
Ventilation Mode Cooling Mode* Heating Mode*
Local Control 0.00 - -
OFF/ Trickle 0.25 - -
Speed 1 0.50 0.75 1.00
Speed 2 1.50 1.75 2.00
Speed 3 2.50 2.75 3.00
Speed 4 3.50 3.75 4.00
Speed 5 4.50 4.75 5.00
Speed 6 5.50 5.75 6.00
Speed 7 6.50 6.75 7.00
Speed 8 7.50 7.75 8.00
Speed 9 8.50 8.75 9.00
Speed 10 9.50 9.75 10.00
* Only available on relevant unit.

NuAire AVT-NC-R Series Specifications

General

Brand	NuAire
Model	AVT-NC-R Series
Category	Fan
Language	English