AX-ET-6
Electronic Thermostat – Six stage
Installation
The AX-ET-6 should be installed by a suitably qualified technician in conjunction with any guidelines for the equipment it is to be
connected to. Field wiring should be installed to satisfy the requirements set out by the manufacturer of the equipment that the module
is being connected to.
Description and Connections
2 of 4
Menu
Repeatedly press
to scroll through the Actual, Min-max,
Setpoint, On Delay and Off Delay displays.
Setpoint
The setpoint can be adjusted between -10
°
C and 110
°
C using the
and
switches. When connected a remote pot can
be used to adjust the setpoint value by either ±4
°
C or ±20
°
C from
the value set. All the stage offsets are fixed to the setpoint and
track changes in the setpoint value. It is possible to provide the
same switching actions with different setpoint and offset
combinations. The only limitation on the setpoint location is that
all cooling offsets are above the setpoint and all heating offsets
are below the setpoint.
Setpoint adjustment
When the Actual temperature display is visible press
or
to select the Setpoint display then press
or
to adjust the setpoint.
Stage offset
The stage offset sets the centre point of the heating or cooling
stage. If the stage is set for heating the offset is taken away from
the setpoint. If the stage is set for cooling the offset is added to
the setpoint.
Stage differential
This sets the total differential for the stage. The differential is
centred on the stage offset, therefore a differential of 4
°
C will set
the stage relay switching points to 2
°
C above the offset and 2
°
C
below the offset.
MENU
I NC
DEC
I NC
DEC
I NC
DEC
Stage switching
If the stage is set for cooling the relay will switch on when the
temperature rises above the upper switching point and will
switch off when the temperature falls below the lower switching
point. If the stage is set for heating the relay will switch on when
the temperature falls below the lower switching point and will
switch off when the temperature rises above the upper switching
point. An example of these values is given on the next page.
Setback
To activate the setback close the contact across the setback
terminals, the display will show Actual
S
b
. When Setback is
active it will increase all the offsets by the set amount. This will
reduce the heating stage switching points and increase the
cooling stage switching points.
Remote Setpoint (External potentiometer)
Select the required range, ±4
°
C, ±20
°
C using the set-up mode and
connect a 1-11kΩ potentiometer across the External Pot
terminals. The setpoint display will show SP with EP and will
show the adjusted setpoint value.
Minimum and maximum temperature
The minimum and maximum sensor temperature values are
stored by the AX-ET-6 until power is removed. When the Actual
temperature display is visible press
to display the Min
Max Output display. Press
to display the minimum
value. Press
to toggle between the minimum and
maximum values. Hold
down for 2 seconds to reset the
minimum and maximum values.
MENU
I NC
I NC
I NC
MENU
0V Common
24Vac/dc
Stage
1
Sensor External
Pot
Set
Back
AX-ET6-24
Actual
25.0°C
DEC
INC
Stage
2
Stage
3
Stage
4
230Vac
L N
Stage
5
Stage
6
MENU
Stage
1
Sensor External
Pot
Set
Back
AX-ET6
-230
Actual
25.0°C
DEC
INC
Stage
2
Stage
3
Stage
4
Stage
5
Stage
6
