Note: this unit contains two fan units and two controls.
Generally, it is recommended that the two fans are operated
together (factory default arrangement), but the fans are
capable of independent operation if required.
5
26. 01. 17. Leaflet Number 671340
Installation and Maintenance
SQURBO XBOX
Figure 9.
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
LED indicators
Min Max SL run on
Trickle
Test
0
1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
TX
RX
Connector
Ecosmart
3.0 Setting to Work
Using the Test Button
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.
Note that the fan will return to normal operation after
30 seconds.
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.
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.
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
Settings
Setting the maximum air flow
ii) 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.
ii) Switch on the power supply.
iii) 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.
Setting the minimum trickle airflow (nominal 40%)
i) 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’.
ii) Note that the minimum setting (nominally 40%) must be
below the maximum setting, otherwise minimum setting will
be automatically set to be the same as the maximum.
Setting the 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 by rotating clockwise.
Setting the trickle ventilation facility
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.
Setting the ‘air off’ temperature
The adjustment knob is located in the control pack and must
be set to the desired ‘air off’ temperature.
