20
Part II
Installation
NRT407 manual
Terminal
Designation
Operation
23
UO1
Control output heating (FS), cooling or heating or cooling via change-over.
For a 0...10 V DC valve actuator, max 5 mA (FS). The valve actuator’s
0…10 V control signal terminal is connected to terminal 23 and its supply
terminals to terminals 10 and 11. Make sure that the reference pole G0 is
connected to the correct terminal on the actuator.
alternatively
For a 24 V AC thermal actuator, max 2.0 A. The thermal actuator is
connected between terminals 23 and 20, GDO.
alternatively
For a 24V AC actuator with spring return, max. 2.0 A. The actuator is
connected between terminals 23 and 20. This can be configured either
through the display or through NRT tool. The output signal for UO1 can be
set to NC (normally closed) or NO (normally open).
24
UO2
Control output heating or cooling (FS).
For a 0...10 V DC valve actuator, max 5 mA (FS). The valve actuator’s
0…10 V control signal terminal is connected to terminal 24 and its supply
terminals to terminals 10 and 11. Make sure that the reference pole G0 is
connected to the correct terminal on the actuator.
alternatively
For a 24 V AC thermal actuator, max 2.0 A. The thermal actuator is
connected between terminals 24 and 20, GDO.
alternatively
For a 24V AC actuator with spring return, max. 2.0 A. The actuator is
connected between terminals 24 and 20. This can be configured either
through the display or through NRT tool.
30
AI1
For an external room sensor, PT1000. Measuring range 0...50°C. The
sensor is connected between terminals 30 and 41, AGnd.
31
AI2
For a 0…10 V CO
2
sensor
alternatively
Flow input
alternatively
0…10 V input
32
DI1
Occupancy detector. A potential-free contact is connected between
terminals 32 and 40, +C. Closed contact corresponds to occupancy.
alternatively
Window contact (DI). A potential-free contact is connected between
terminals 33 and 40, +C. Closed contact indicates closed window.
alternatively
Change-over.
33
DI2/CI
Sauter condensation detector, EGH102 (FS). The sensor is connected
between terminals 33 and 41, AGnd.
alternatively
Window contact (DI). A potential-free contact is connected between
terminals 33 and 40, +C. Closed contact indicates closed window.
alternatively
Change-over.
40
+C
24 V DC out common for DI and UI (with digital function)
41
AGnd
Analogue ground, reference for AI and UI (with analogue function)
42
A
RS485-communication A
43
B
RS485-communication B
Table 3. I/O connection terminals for model for CO
2
control
Содержание NRT407
Страница 1: ...SAUTER ITALIA SPA NRT407 ...
Страница 9: ...NRT407 manual Part I Introduction 9 Design NRT407F902 NRT407F901 ...
Страница 13: ...NRT407 manual Part I Introduction 13 ...
Страница 46: ...46 Part III Configuration NRT407 manual Chapter 13 Indications ...
Страница 54: ......
Страница 73: ...NRT407 manual Part IV Signals 73 ...
Страница 76: ...SAUTER your local partner www sauteritalia it ...