1. Introducció
This manual provides detailed instructions for the installation, programming, and operation of your Intermatic ET1725C Electronic 7-Day SPST Timer. This device is designed to automate the control of electrical loads with precise, up-to-the-minute scheduling. It features battery backup for power loss, up to 14 ON/OFF set points per circuit, and automatic daylight saving time corrections.
The ET1725C is an upgrade from basic mechanical time switches, offering enhanced functionality and ease of use. Its contacts can be configured as two independently operated SPST, one simultaneously operated DPST, or independently pulsed SPST for contactor and bell ringing applications. It supports multi-volt operation from 120-277 VAC, 50/60 Hz.
2. Informació de seguretat
ADVERTIMENT: Risk of electrical shock. More than one disconnect switch may be required to de-energize the equipment before servicing. Always disconnect power at the circuit breaker or fuse box before installing or servicing this timer.
Use 10-18 gauge copper conductors rated for at least 75°C (167°F) for all connections.
NO TREGUEU AQUEST AÏLLANT. This insulator is critical for safe operation.
Aquest producte conté substàncies químiques que l'estat de Califòrnia sap que causen càncer i defectes congènits o altres danys reproductius (advertència de la Proposició 65).
Figura 2.1: Interna view of the Intermatic ET1725C timer, highlighting wiring terminals and critical safety warnings printed on the device. This image shows the LCD display, control buttons, battery compartment, and the terminal block with labels for Timer Power, Line 1, Load 1, Line 2, and Load 2. A prominent yellow label warns about electrical shock and conductor requirements.
3. Instal·lació
3.1 Muntatge
The Intermatic ET1725C timer is designed for enclosure mounting. Ensure the mounting location is suitable for electrical equipment and provides adequate ventilation.
Figura 3.1: The closed gray enclosure of the Intermatic ET1725C timer, showing its robust design suitable for various installation environments. The Intermatic logo is embossed on the front.
3.2 Cablejat
Before wiring, ensure all power to the circuit is disconnected at the main service panel. Refer to the wiring diagrams below for proper connection based on your specific application. The ET1725C supports various configurations including SPST and DPST.
Figura 3.2: Comprehensive wiring diagrams for the Intermatic ET1700 series, including configurations for ET1705-120 VAC-SPST, ET1715-SPDT (load switching), ET1725-240 VAC-DPST, ET1725-2x SPST, ET1725-2x SPST (bell ringing), and ET1725-Pulse 2x SPST (bell ringing). These diagrams illustrate connections for Timer Power, Line, Neutral, and Load terminals.
- ET1705-120 VAC-SPST: Connect Line and Neutral to Timer Power. Connect Line to terminal 1 and Load to terminal 2. Install jumper between terminals 3 and 4 if load voltage i entrada voltage són iguals.
- ET1715-SPDT (Load Switching): Similar to ET1705, but with additional load connections for switching.
- ET1725-240 VAC-DPST: Connect L1 and L2 to Timer Power. Connect L1 to terminal 1 and L2 to terminal 3. Connect Load to terminals 2 and 4. Configure jumper to "SIM" for simultaneous operation.
- ET1725-2x SPST: For two independent SPST loads. Connect L1/Neutral to Timer Power. Connect L1 to terminal 1 and L2/Neutral to terminal 3. Connect Load 1 to terminal 2 and Load 2 to terminal 4.
- ET1725-Pulse 2x SPST (Bell Ringing): For pulsed applications. Configure jumper to "PUL".
4. Configuració i programació
The ET1725C allows for flexible programming with up to 14 ON/OFF set points per circuit. The timer automatically adjusts for daylight saving time.
Figura 4.1: The Intermatic ET1725C timer with its front panel open, revealing the LCD display, programming buttons (MODE, DAY, RESET, ENTER NEXT, ON/OFF), and the battery compartment. An instruction sheet is partially visible, indicating the comprehensive nature of the product's documentation.
4.1 Configuració inicial
- Encès: After installation and power connection, the display should illuminate.
- Estableix l'hora actual:
- Premeu el botó MODE button until "SET TIME" appears.
- Utilitza el UP i ABAIX arrows to adjust the hour and minute.
- Premeu ENTER NEXT per confirmar.
- Estableix el dia actual:
- Premeu el botó DIA button to cycle through the days of the week until the current day is displayed.
- Horari d'estiu (DST): The timer automatically corrects for DST. Ensure the correct year is set if prompted during initial setup.
4.2 Programació d'esdeveniments ON/OFF
The timer allows for up to 14 ON/OFF set points per circuit. Each set point can be assigned to specific days of the week.
- Premeu el botó MODE button until "PROGRAM" appears.
- The display will show "ON 1". Use the UP i ABAIX arrows to set the desired ON time for the first event.
- Premeu ENTER NEXT.
- The display will show "OFF 1". Use the UP i ABAIX arrows to set the desired OFF time for the first event.
- Premeu ENTER NEXT.
- The display will show the days of the week. Use the DIA button to select the days for this program. You can select individual days, weekdays, weekends, or all days.
- Premeu ENTER NEXT per guardar el programa.
- Repeat steps 2-7 for additional ON/OFF events (ON 2, OFF 2, etc.).
- Per sortir del mode de programació, premeu MODE button until the current time is displayed.
4.3 Anulació manual
The timer can be manually overridden using the ON/OFF buttons. Pressing these buttons will toggle the load's state (ON or OFF) without affecting the programmed schedule. The timer will revert to the schedule at the next programmed event.
5. Funcionament
Once programmed, the Intermatic ET1725C will operate automatically according to your set schedule. The LCD display shows the current time, day, and the status of Load 1 and Load 2 (ON/OFF).
- Funcionament automàtic: The timer will activate and deactivate connected loads based on the programmed ON/OFF events.
- Mostra informació: The display provides real-time information on the current time, day, and the operational status of the connected loads.
- Còpia de seguretat de la bateria: En cas d'una potènciatage, the internal battery backup maintains the time and programmed settings. The display may not be active during a power outage to conserve battery life.
6. Manteniment
6.1 Substitució de la bateria
The ET1725C uses a replaceable battery for backup power. If the display becomes dim or the timer loses settings during a power outage, the battery may need replacement.
- ADVERTIMENT: Disconnect all power to the timer at the circuit breaker before opening the unit.
- Open the timer enclosure.
- Localitzeu el compartiment de la bateria.
- Carefully remove the old battery and replace it with a new, equivalent battery (e.g., standard AAA non-rechargeable alkaline battery).
- Close the battery compartment and the timer enclosure.
- Restore power and verify the timer's functionality.
6.2 Neteja
Clean the exterior of the timer with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure no moisture enters the unit.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La pantalla del temporitzador està en blanc. | No power to the unit or dead backup battery. | Check circuit breaker. Ensure proper wiring. Replace backup battery. |
| La càrrega no s'encén/apaga a les hores programades. | Incorrect programming, manual override active, or wiring issue. | Review programming steps. Check if manual override is active. Verify wiring connections. |
| Time or settings are lost after power outage. | Backup battery is weak or dead. | Substituïu la bateria de reserva. |
| Display is difficult to read. | Poor lighting conditions or small LCD. | Ensure adequate lighting. This is a known characteristic of some LCDs. |
8. Especificacions
- Model: ET1725C
- Marca: Intermatic
- Tipus: Electronic 7-Day Timer
- Estil de canvi: SPST/DPST (field configurable)
- Voltage: 120-277 VAC, 50/60 Hz (Multi-volt operation)
- Nombre de configuracions: Up to 14 ON/OFF set points per circuit (28 total)
- Temperatura de funcionament: -40 °F a 155 °F (-40 °C a 68 °C)
- Material: Tancament metàl·lic
- Color: Gris
- Dimensions del producte: 3.3 "P x 8.1" W x 5.3" H
- Pes de l'article: 2.8 lliures
- Tipus de muntatge: Tancament
- Components inclosos: Unitat, Guia d'instruccions
- Tipus de bateria: Alkaline (for backup, not included)
- UPC: 094705211373, 784497620063, 078275109865
9. Garantia i assistència
9.1 Informació de la garantia
The Intermatic ET1725C Electronic Timer comes with a 1-year warranty. This warranty covers replacement of the unit due to manufacturing defects but does not cover labor costs associated with removal or reinstallation. Please retain your proof of purchase for warranty claims.
9.2 Atenció al client
Per a assistència tècnica, resolució de problemes o consultes sobre la garantia, poseu-vos en contacte amb el servei d'atenció al client d'Intermatic. Consulteu la pàgina oficial d'Intermatic. website or the included instruction guide for current contact information.
