Belimo EXT-T24-D201 User manual

Installation manual
1
V1.3 · 09.2017 · Subject to modification
EXT-T24-D201 LCD Temperature Controller
Installation
Dimensions and wiring diagram
2 4 VA C
L
N
RS
┴
Inpu t
┴
~
TR
M
V +
┴~
Modulating Control
Cooling/ Heating
2-10 V
Input
Remote Sensor
1. Open the back panel with screwdriver. 2. Connect the wires per the wiring diagram.
3. Secure the base with the screws provided. 4. Reattach the front panel.
1. On/ Off
2. Setpoint
Press “ ” button to display the set point, press “ ” to reduce the setpoint, press “ ” to increase the
setpoint, the setpoint step is 0.5°C, the setpoint will be confirmed automatically after 5 seconds.
3. Mode With thermostat on, press “ ” to change the working mode – Cooling “ ”，Heating “ ”.
4. Sleep mode Press “ ” button for 3 seconds till “ ” display, there is a number of count down in the center of LCD.
Use “ ” or “ ” to adjust the desired sleep time: the max. = 48 hours; thermostat will return to the
working status after 5 seconds, “ ” is flashing to start counting down. The setpoint should be replaced
by the sleep setpoint.
When thermostat get into Sleep function, “ ” will flash, press “ ” or “ ” to quit.
5. Exit setup menu
6. Keypad lock Press “ ” and “ ” for 10 seconds till to “ ” display to activate, under this function, any keypad is
locked. Press “ ” and “ ” for 10 seconds till “ ” disappear to quit the function.
Setup menu
Press “ ” buttons to turn on; press “ ” again to turn off.
S
M
M
7. Backlight Press “ ” to activiate the backlight. Avoid pressing “ ”, “ ” or “ ” to activate backlight as it will
change the setting at the same time.
SM

V1.3 · 09.2017 · Subject to modification
2
EXT-T24-D201 LCD Temperature Controller
Parameter setting
Parameter table
With thermostat off, press “ ” for 10 seconds to enter menu to set the parameters. It will confirm itself 20 seconds later after setting and
return to Off state.
M
r
D e sc rip tio n
D e fa u lt
R a ng e
S te p
1
P ow er on sta tu s (0 : O ff; 1 : O n ; 2 : Last status)
2
0 - 2
2-3
N/A
4
S e ns o r s ele ctio n (0 : In te rn al; 1 : R e m o te )
0
0 - 1
5
Tem perature fo rm at (0 : C elsius; 1 : Fahren h eit)
0
0 - 1
0.1
6
Tem perature calibra tion
0
-2 0 .0 -
﹢
20.0
0.1
7
M in im u m se tp oin t
5℃/41 ℉
0 - 99.5
0.5
8
M a xim u m se tp oin t
35℃/96 ℉
℉
0 - 99.5
0.5
9
N/A
10
H e a tin g & A u to s le e p s e tp o in t
7℃/45 ℉
0 - 99.5
0.5
11
C o olin g sle ep s etp oin t
28℃/82 ℉
℉
0 - 99.5
0.5
12
N/A
13
In pu t S ig na l M o de
0: Inva lid
1: N/A
2: th e rm ostat will be slee p witho u t in p u t signal
3: th e rm ostat will be O ff with ou t inp u t signal
2 0 - 3
14
H e atin g integral tim e
90 sec.
10 - 300 sec.
10 sec.
15
C o olin g integral tim e
90 sec.
10 - 300 sec.
10 sec.
16
Valve m o de (0 : M o du latio n ; 1: O n /O ff)
0
0 - 1
17
V alve sta tu s a s tu rn o ff (0 : C lo se ; 1 :H o ld ; 2 : O p en )
0
0 - 2
18
Valve M o du latio n dire ction(0 :10 V O p en ; 1 :1 0V C lo se )
0
0 - 1
19
Valve M o du latio n m in im u m s ig na l
1 B it 0-128Bit (5V /10m A) 0.04V /B it (0.08m A /Bit)
20
Valve M o du latio n p ro po rtio na l
2
1 - 20
0.5
21-22
Switch
There is a 5-pole DIP sw itch o n P C B . The m ea ning is be lo w :
Location
Pole
Default value
1
2
Valve Modulation - 20m A or 0- 20mA
O ff
3
Valve Modulation 2- 10VDC or 0 - 10VDC
O n
4
5
N/A N/A
N/A N/A
N/A N/A
N/A
1
ON DIP
2345
1
ON DIP
2345
23 Port2 Modulation proportional 2 1 - 20 0.5
24-27 N/A
Note:
Keep last status of Parameter 20: If Parameter 20 is reset to valule other than default “2” and the value needs to keep upon power reset,
Parameter 23 is needed to set to the same value as Parameter 20.

3
EXT-T24-D201 LCD Temperature Controller
V1.3 09. 2017 · Subject to modification
External sensor
The performance specifications above are nominal and subject to tolerances and application variables of generally acceptable industry standards.
Belimo shall not be liable for damages resulting from misapplication or misuse of its products.
Table 1 - Resistance versus Temperature
The probe type sensor is included in the
EXT-T24-D201 temperature controller.
Specifications
Sensing Element NTC Thermistor, 10 kΩ@25ºC, See Table 1 for Characteristics
Range
Maximum Length of Connecting Wires 1.5 m
Ambient / Storage Temperature Limits -10°C...40°C (avoid air corrosion or sunlight)
Dimensions See Fig. 1: Dimensions in mm
Temperature
°C
Resistance
Ω
Temperature
°C
Resistance
Ω
Temperature
°C
Resistance
Ω
0
1
2
3
4
5
6
7
8
9
10
32116
26399
26399
25150
23965
22842
21776
20764
19783
21
22
23
24
25
26
27
28
29
30
11939
11418
10921
10418
10000
9571
9164
8775
8405
8052
31
32
33
34
35
36
37
38
39
40
7716
7396
7090
6798
6520
6255
6002
5760
5529
5309
Temperature
°C
11
12
13
14
15
16
17
18
19
20
Resistance
Ω
18892
18026
17204
16423
15681
14976
14306
13669
13063
12487
-40°C...105°C
Ambient / Storage Humidity ≤75% RH
30570
29105
Fig. 1
2651 26 # 105ºC white double row wire
14
5
1500±10
5±1