Am5872 - LEGRAND 3440 Technical Sheet

Probe with selector
Description
The device can adjust the room temperature in both winter and summer, varying the
settings locally with respect to those received from the central unit.
The item has a knob for the local temperature selection (limited to ± 3°C with respect to
the value set by the central unit), the antifrost mode and the OFF mode. There are two
LED, one green and one yellow, on the front of the item. The green LED indicates that
the device is working correctly and the activation of the antifrost mode and OFF of the
corresponding area. The yellow LED indicates the actuator state and any faults.
OFF mode
This mode has the maximum priority, whether selected by the probe or set by the central
unit; to quit the OFF mode use the device which set it.
Antifrost/thermal protection mode
In this position if the Temperature control system is set as heating the probe works in
antifrost mode; if it is set as cooling it works as thermal protection. The probe can also
work in collaboration with other probes in "master" configuration to allow the Central
unit to calculate an average of the temperature over several measuring points. This
function is useful for managing very large rooms, inside which the temperature can vary
appreciably.
If there is a fault on the central unit, the probe works with the last settings received,
thus continuously maintaining the last temperature determined with summer or winter
setting.
If the probe selects the OFF mode this has priority even if the central unit is faulty, thus
the zone controlled by the probe will remain OFF.
The probe can be used to control a zone with up to 9 actuators of the same type, and 8
slave probes (4693, 573921, 573920 and 067458).
Related articles:
682 46 (Cover White)
685 46 (Cover Titanium)
Legend
1. Key in the low position to enable virtual configuration
2. Knob: for manual temperature setting (± 3°C), to select the antifrost/thermal
protection ( ) mode and the OFF state (forced zone off).
3. Yellow LED: when it shines steadily or it is OFF it signals the state of the devices in
the corresponding zone, when it flashes it signals a fault.
4. Green LED: when it shines steadily it indicates that the device is active, when it
flashes it indicates that the OFF or antifrost modes are set locally.
Technical data
- Power supply from SCS BUS: 27 Vdc
- Operating power supply with SCS BUS cable: 18–27 Vdc
- Absorption: 6 mA
- Operating temperature: 0 – 40°C
- Size: 2 modules
- Installation height: 1500 m from the floor
318
5739 22 (White)
5739 23 (Magnesium)
MQ00179-c-EN 21/05/2014
067457 HC4692
HD4692 HS4692
Front view
ZA
ZB
SLA
Rear view
NOTE: compared with the previous version, the P, MOD and DEL
configurator sockets have been removed.
L4692 NT4692
N4692

AM5872

1 1
2 2
3 3
4 4
configurator
socket
BUS