DAY DAT DAIR Connector without Crowtor 2A: clear diagram and practical guide

The installation of a day/night contactor without 2nd switch has technical challenges and potential risks. Although the Linky counter allows us to manage the top hours through its dry contact, the absence of a dedicated switch can cause overloads or dysfunctions. This practical guide explains the passages, precautions and alternatives to optimize electrical installation.

The role of the contactor in a linky installation

The day/night counter is a device that allows you to automatically spend between complete hours and quarries, based on the signals of the Linky counter. Unlike old counters, Linky does not have an integrated contactor, but issues a Contact SEZ which acts as a switch to check the devices.

Because a 2A switch is generally recommended

A 2A switch is used to protect the interruption of the interruption and connected devices (water heaters, washing machine). Its absence can expose the installation to overheating or short circuits, especially if the contactor manages high power appliances.

Connection phase without 2A switch

Basic diagram and necessary material

To connect a day/night counter without switch 2nd, prepare:

• Day/night contactor (From 20 to 200 € depending on the brand)
• Phase and neutral child
• Connection terminals (A1, A2, C1, C2)

Detailed procedure

1. Cut the general diet : Press the main switch to ensure safety.
2. Identify the Lenky terminals :

• Brought C1 : Meter phase
• Bring C2 : Dry contact (empty hours signal)

1. Connect the contactor :

• Phase : Connect the A1 terminal from the contactor to the C1 terminal of the connection.
• Contact SEZ : Connect the A2 terminal from the contactor to the C2 terminal in Lyky.

1. Cork :

• Neutral : Connect the contactor's neutral (terminal N) to the circuit neutral.
• Phase : Connect the contactor's phase (terminal L) to the device phase (water heaters, etc.).

The risks and precautions to be taken

Electric overload and safety

Without a 2nd switch, the circuit can undergo overheating If the contactor manages a heap or a washing machine. The consequences include:

• Damage of the device
• Fire (in extreme cases)

Check in dry contact

Before any installation, make sure that the Contact the DU line It is active. In the counter screen, the message «Contact SEC stops» confirms its correct operation.

Alternatives and rescue solutions

Forced march in case of failure

If the contactor does not trigger the water heater, use the Methods I. (forced to walk) on the contactor. This option allows you to manually heat the water, but avoid using it permanently so as not to cancel the savings.

Domatic programming

For more precise management, opt for a Connected contactor Compatible with home automation systems. These devices allow you to program the heating hours through an application, in addition to the linky signal.

Practical cases and concrete examples

Example 1: electric water heater

| Passage | Action |
|-|-|
| 1 | Cut the water heater switch |
| 2 | Connect the neutral from the contactor to terminal 2 |
| 3 | Connect the contactor's phase to terminal 4 |
| 4 | Connect the dry contact from Lyky to the A2 terminal |

Source: type diagram for cumulus

Example 2: washing machine

For a washing machine, follow the same principle:

It is possible to install a day/night contactor without 2nd switch, but requires a Supervision has increased. To maximize savings and security:

1. Check regularly the state of the contactor and connections.
2. Promote connected contactors for more flexible management.
3. Consult an electrician In case of doubts, especially for complex installations.

In summary, although the absence of a 2A switch is technically achievable, it exposes itself to the risks. A professional installation remains the most reliable solution to fully enjoy the advantages of the off price.