14
30. 06. 20. Document Number 671948
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
XBC+ with Ecosmart Classic (E) or No (N) Control
Installation Manual
5.2 Electrical Information
5.3 Using Test Button (ES Control Only)
The test button allows the individual blowers within the unit to be
checked for its operation. If the fan is running already, press the button
once to stop the fan, press again to switch on the fan.
The fan will
return to normal operation after 30 seconds.
5.4 Supply & Extract Fan Speed Offset
This unit contains two fans and one control. Generally, the two
fans operate at similar speeds, but the control includes an “O
adjustment” for the slower fan (on the main circuit board).
If one of the fans needs to be run slower than the other, move the
control extract or supply signal plug into the o header (Figure 24).
Use the o ADJ pot (Figure 28, Figure 29 and Figure 30) to turn the
speed down.
Maximum turn down is 40%, i.e. reduce the drive signal to the slower
fan up to 40%. Note the response of the fan to the drive signal may not
be proportional at all signal values.
24
Supply & Extract Wiring
BMS
CO2 IN
SET
INV DRIVE
PIN
SUP
EXT
OFF
POINT
FAN
SET
FAN
Speed control signal
Speed control signal
for extract fan
for supply fan
5.5 LED Indication
PWR
GREEN: Power on & OK.
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.
Heating*
GREEN: Heating selected RED: Heating faulty.
Cooling*
Not applicable. See note.
Fault
LED on when a fault is present on unit.
Frost*
Not applicable. 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.
5.6 BMS Input Signals
The system’s response to a 0-10V DC BMS signal is given in the
following table.
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.
5.7 Commissioning Settings
5.7.1 Maximum Airflow
•
Ensure the power supply is switched off and that a link wire is
connected from the supply L to the SL terminal.
Unplug all items connected to the ‘Net‘ connectors.
•
Switch on the power supply.
•
Wait for the fan to complete its self-test operation.
Measure the airflow using standard commissioning instruments at a
suitable point in the ductwork. If adjustment is required, rotate the pot
marked ‘MAX’ to obtain the desired airflow.
5.7.2 Minimum Airflow (Trickle)
•
Repeat the same procedure as for maximum airflow above but
without the link wire between supply L and SL terminal. Ensure the
trickle switch is in the ‘ON’ position. Adjustment must be made on
the pot marked ‘Min’.
The minimum setting (20% of maximum air flow)
must be
below the maximum setting; otherwise minimum setting will be
automatically set to be the same as the maximum.
5.7.3 Trickle Ventilation
Slide the ‘trickle’ switch 0 = Off, 1 = On. With ’trickle’ on and power
to unit, the fan will run at minimum speed until the switch live signal
activates it to boost.
5.7.4 Overrun Time
A switched live of 100-230V at terminal SL will activate the fan.
When the switched live signal is removed the fan will overrun for period
set by the dial ‘SL run on’ - adjust the desired overrun time between
1-60 minutes by rotating clockwise.
5.7.5 Air Off Temperature
The adjustment knob is located in the control pack and must be set to
the desired ‘air off’ temperature.
25
Commissioning Board
MIN
= Minimum speed
adjustment
MAX
= Maximum speed
adjustment
SL Run on = Switched Live
Run-On Timer
TRICKLE
adjustment
= Selects trickle
1 = selected
running: 0 = off,
TEST
= Test button
LED indicators
Min Max SL run on
Trickle
Test
0
1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
TX
Frost
RX
Connector
Ecosmart
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
Unit Without Electric Heater
Unit With Electric Heater
Unit Code
FLC
Unit Code
Fan FLC Heater
XBC10HA-(N/L)**
3.0 A
XBC10HA-E**
3.0 A
6.3 A
XBC15HA-(N/L)**
4.0 A
XBC15HA-E**
4.0 A
12.5 A
XBC25HA-(N/L)**
8.0 A
XBC25HA-E**
8.0 A
18.8 A
XBC45HA-(N/L)***
6.0 A
XBC45HA-E**
6.0 A
18.8 A
XBC55HA-(N/L)**
6.0 A
XBC55HA-E**
6.0 A
37.5 A
XBC65-HA-(N/L)**
6.0 A
XBC65HA-E**
6.0 A
37.5 A
