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Installation Manual
5.3.2 AVT 9
19
AVT 9 Wiring
Ecosmart
Min
ES-CO2
BMS
Connection
Input
Signal
0
Trickle
Link wire see note*
Damper Connections
N L1 L2 L3
Local isolator (by others)
5.3.3 Control Module
20
Control Module Wiring Diagram
N
L
Switch live signal
(if required)
SL
DP
Connections
CL
to Damper
N
RET
N
L1
L2
L3
N L1 L2 L3
Nuaire |
Western Industrial Estate
All manuals and user guides at all-guides.com
Pwr
Standby
Fan 1
Max
SL run
Fan 2
NET
on
Heating
connections
Cooling
for Ecosmart
Fault
devices
Frost
1
TX
RX
Test
Heat
Run
Fault
Demand
Run
Fault
Signal
Signal
L3
L2
400V - 3ph 50Hz Supply
L1
N
No user
connections
CO
connections
0
+ve signal
from BMS
Ribbon cable
to commissioning
box
Volt Free
Contact
RUN signal
5A resistive
Volt Free
0.5A inductive
Contact
FAULT signal
NET connections for
ECOSMART devices
|
|
| nuaire.co.uk
Caerphilly
CF83 1NA
5.4 BMS Input Signals
21
BMS Connector
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
OFF/ Trickle
Speed 1
Speed 2
Speed 3
Speed 4
Speed 5
Speed 6
Speed 7
sensor
2
Speed 8
Speed 9
Speed 10
* Only available on relevant unit.
27. 10. 20. Document Number 671590
AVT-(R/X)
BMS
0.00
-
0.25
-
0.50
0.75
1.50
1.75
2.50
2.75
3.50
3.75
4.50
4.75
5.50
5.75
6.50
6.75
7.50
7.75
8.50
8.75
9.50
9.75
-
-
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
7
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