4) connection 5) installer commissioning, 6) use, 7) alarm – Delta Dore T1D DIGIT User Manual
Page 2: User mode

4) Connection
5) Installer commissioning
Place the switch in the PROG position.
Press the
or
buttons to display the required value.
Press
to accept and go to the next parameter.
If the safety setpoint is "Off", setpoint 3 is not displayed.
When all the settings have been defined, the switch
must be returned to the
position.
PROG
6) Use
T1D digit continuously compares the
temperature measured by probe 1 with
the temperature measured by probe 2.
If T° probe 1 - T° probe 2 > maximum
difference the output switches to On.
If T° probe 1 - T° probe 2 < minimum
difference the output switches to Off.
The safety setpoint (e.g. 5 °C frost protection) is used to "force"
the output to On in the case where the temperature measured
by probe 3 falls below this setpoint.
User mode
T1D digit continuously displays the measured temperature.
You can display all the measured temperatures
by pressing the
button repeatedly:
probe 1, probe 2 or probe 3.
7) Alarm
The "Alarm" warning light flashes to indicate that a fault has occurred.
N
L
7 8 9 1011
T1D digit
Control
(e.g. Circulator)
Probe 1 : Highest temperature
(collection source)
Probe 2 : Lowest temperature
(storage, e.g. hot water tank)
Probe 3 : Safety temperature (e.g. outside T˚)
PROG
1 2
Probe 1
3 4
Probe 2
5 6
Probe 3
N L
230 V~
50 Hz
230 V~
5A max
PROG
Function no.
Description
Maximum difference
From + 3.5 ˚C to + 30 ˚C in 0.5 ˚C steps
Minimum difference
From + 0.2 ˚C to + 3 ˚C in 0.1 ˚C steps
+ 7˚C
Setting
Default value
+ 2˚C
Safety setpoint
From 0 (Off) to + 90 ˚C in 1 ˚C steps
Off
From - 2 ˚C to + 2 ˚C in 0.5 ˚C steps
From - 2 ˚C to + 2 ˚C in 0.5 ˚C steps
0˚C
From - 2 ˚C to + 2 ˚C in 0.5 ˚C steps
0˚C
0˚C
Probe 3 correction
Probe 1 correction
Probe 2 correction
For clarity, only schematic diagrams are given here. They do not show the protective
devices and other accessories required by the standards.
- The UTE C15-100 standard and good practice must be complied with.
- Connected or adjacent appliances must not generate excessive interference
(directive 89/336/EEC).
Temperature
probe 1
Temperature
probe 2
On
Output
state
Off
Minimum
difference
Maximum
difference
Problem
Diagnosis / Solution
The probe is cut off
Check the probe or its connection.
The probe is short-circuited
Check the probe or its connection.
There is a problem inside the thermostat
Switch off, then switch on again.
If the problem persists, contact the installer.
When the measured
temperature is
consulted, the
thermostat displays:
When the measured
temperature is
consulted, the
thermostat displays:
The temperature display is correct,
but the "Alarm" light is flashing.
1
2
3
1
2
3
1
2
3