Reversal of the BMS connection will damage the control.
4
Installation, Operating and Maintenance Instructions
DAVE Supply Fans (ES Models) 50/60Hz
5
.0 Wiring
Wiring Connections for units with Ecosmart Control
a) Mains connections.
Mains cables should be suitably sized and terminated at terminals
shown on the appropriate diagram.
b) Control Connections.
Below: ‘Net’ connection for Ecosmart devices.
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).
c) Switched Live (SL) terminal.
A signal of 100-230V
/ 220V
a.c. will activate the fan from
either its off state or trickle state (see setting to work-trickle
switch).
When the SL is disconnected the fan will over-run
(see setting to work-timer adjustment).
Do not take this signal from an isolating transformer.
d) Volt Free Relay Contacts.
LED indication
for units with Ecosmart Control
PWR
GREEN: Power on & OK. RED: To much power
is taken by peripherals or there is a short circuit in
the net cable. Check the cable and use a junction box
(ES-JB) to connect some of the peripherals.
Standby
LED on when fan is not running.
Fan 1
GREEN: Fan 1 is running, RED: Fan 1 faulty.
Fan 2
GREEN: Fan 2 is running, RED: Fan 2 faulty. (Twinfan only)
Heating* Not applicable. See note.
Cooling* Not applicable. See note.
Fault
LED on when a fault is present on unit.
Frost*
Applicable with LPHW only. See note.
Tx
LED on when the controller is transmitting data.
Rx
LED on when the controller is receiving data.
* Note that the control panel is common to all the Ecosmart
products and will have indicators for functions that are not
available in this particular fan. However these indicators will
not be illuminated.
e) Commissioning panel details.
Note: A Commissioning Procedure document (leaflet No. 671153)
is available on request from Nuaire Tel: 029 2088 5911.
The Control Module
Fig 12:
The BMS connection is made with a plug-in connector
via the socket (See figure 13). 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.
The system’s response to a 0-10V dc BMS signal is given below.
Note the BMS signal will override any sensors and user control
connected in the system. The voltage tolerance is +/_ 125mV and
is measured at the fans terminal.
Ventilation
Cooling
Heating
mode
mode*
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
Volt Free
Contact
RUN signal
5A resistive
0.5A inductive
Volt Free
Contact
FAULT signal
R
UN F
A
UL
T
N
L
SL
DP
CL
N
RET
230V 50Hz 1ph / 220V 60Hz 1ph
Remove this link wire
ifa 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'
Switch live signal
(if required)
NET connections for
ECOSMART devices
No user
connections
CO2 sensor
connections
0
+ve signal
from BMS
ECOSMAR
T NET
Ribbon cable
to commissioning
box
Fault signal
Remove link if switched live signal,
an enabler or BMS signal is connected.
Terminals or PCB
Mains connection pre-wired
230V 50Hz 1
ph / 220V 60Hz 1ph
N
E
L
SL
Fault signal
LED indicators
Min
Max
SL run on
Trickle
Test
0
1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
MIN
= Minimum speed
adjustment
MAX
= Maximum speed
adjustment
SL Run on = Switched Live Run-On
Timer adjustment
TRICKLE
= Selects trickle running:
0 = off, 1 = selected
TEST
= Test button
Fig 8:
Fig 9:
Fig 11:
RUN
FAULT
Run signal Fault signal
Fig 10:
Fig 13:
18. 10. 17. Leaflet Number 671679
