Settings cont.
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.
9
25. 01. 17. Leaflet Number 671440
Installation and Maintenance
XBOXER (XB2-5)
4.0 Wiring - for units supplied
without Ecosmart Control
The wiring illustrations below are for the fans, bypass damper
and electric heater for units without control.
All wiring is terminated in junction boxes fitted to the specified
side of the unit.
It is the installer’s responsibility to select and fit the appropriate
control equipment to produce the desired output.
Note that any heating/cooling coils fitted are supplied
without control valve and actuator.
Electrical Details
Fan motor
Electric heater
ratings
ratings (if fitted)
Unit size flc
sc
kW
flc
XB2
2 x 0.75A
2 x 3A
4.5kW
18.7A
XB3
2 x 0.75A
2 x 3A
4.5kW
18.7A
XB4
2 x 1.2A
2 x 4.8A
4.5kW
18.7A
XB5
2 x 1.2A
2 x 4.8A
4.5kW
18.7A
Bypass damper rated at 3W, 13mA for all unit sizes.
EAR
TH
NEUTRAL
LIVE
FAN 1
Isolator
by others
N
L
N
L
230V-50Hz
Fuse
3A (T)
(Unit sizes XB2-5) Fan wiring.
Two per unit and one per blower.
(Unit sizes XB2-5T) Fan wiring.
Three per unit and one per blower.
Isolator
by others
N
L
N
L
230V-50Hz
N
L
230V-50Hz
N
L
Isolator
by others
Bypass Dam
per
P
ow
er t
o open
A
ut
o Close
Electr
ic Heat
er
Ther
mal Ov
er
load
Connection t
o
Electr
ic Elements
(Unit sizes XB2-5) with electric heater
bypass damper and electric heater
wiring.
(Unit sizes XB2-5) Fan only or
with LPHW coil bypass damper
wiring.
N
L
230V-50Hz
Isolator
by others
Bypass Dam
per
P
ow
er t
o open
A
ut
o Close
N
L
Figure 19.
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
Figure 20.
Figure 21.
Figure 22.