1. Uvod
This manual provides detailed instructions for the installation, operation, and maintenance of the Intermatic DTAV40 Defrost Timer. This device is designed to control defrost cycles in refrigeration systems, ensuring efficient operation and preventing ice buildup.
The DTAV40 is a robust and reliable timer suitable for various commercial and industrial refrigeration applications. Please read this manual thoroughly before installation and use to ensure proper function and safety.

Image 1.1: The Intermatic DTAV40 Defrost Timer, enclosed in a durable gray plastic housing. The timer face is visible, along with green and red indicator lights for refrigeration and defrost status.
2. Sigurnosne informacije
UPOZORENJE: Risk of electric shock. Installation and servicing should only be performed by qualified personnel. Disconnect power before installing or servicing this device.
- Uvijek se pridržavajte lokalnih električnih propisa i propisa.
- Provjerite da li napajanje odgovara jačini zvuka tajmera.tage rating (120/240V AC).
- Ne prekoračujte maksimalnu nazivnu struju od 40A.
- Provjerite jesu li svi priključci sigurni i pravilno izolirani.
- This device is intended for permanent installation.

Image 2.1: UL Listed certification logo, indicating compliance with safety standards.
3. Značajke proizvoda
The Intermatic DTAV40 Defrost Timer offers the following key features:
- Voltage: 120 / 240V AC
- Amperage: 40 A
- Vrsta kontakta: 1 Normalno otvoren (NO) / 1 Normalno zatvoren (NC)
- Max. On/Off Cycles: Do 48 dnevno
- Defrost Time Range: 15 do 1425 minuta
- Materijal kućišta: Durable Plastic
- Vrsta završetka: Temperature or Pressure, Time, Defrost Initiation Time
- primjena: Designed for commercial refrigeration defrost control.
4. Instalacija
4.1 Montaža
- Choose a suitable location for mounting the timer, ensuring it is protected from direct weather exposure and excessive vibration.
- Mount the timer securely using appropriate fasteners through the mounting holes provided on the enclosure.
4.2 Ožičenje
Refer to the wiring diagram provided inside the timer's enclosure. Ensure all wiring is performed by a qualified electrician in accordance with national and local electrical codes.
- Napajanje: Connect the incoming 120/240V AC power to the designated terminals.
- Učitavanje konekcija: Connect the refrigeration compressor and defrost heater circuits to the appropriate NO/NC contacts as per your system's requirements.
- uzemljenje: Provjerite da li je tajmer pravilno uzemljen.
After wiring, replace the insulating panel before restoring power to the unit.

Slika 4.1: Unutrašnje view of the DTAV40 timer, showing the clock mechanism, terminals, and indicator lights. This view is for reference during wiring.
5. Uputstvo za upotrebu
5.1 Setting the Time of Day
- Rotate the dial clockwise until the current time of day aligns with the pointer on the timer face.
- Ensure the AM/PM indication is correct.
5.2 Setting Defrost Cycles
The timer allows for up to 48 defrost cycles per day. Defrost pins are typically colored differently (e.g., red for defrost, green for refrigeration).
- Insert the defrost pins into the desired time slots on the dial where defrost is required. Each pin represents a specific duration or start time.
- Adjust the defrost duration setting (if applicable to your model) to set the length of each defrost cycle (15 to 1425 minutes).
5.3 Indikatorska svjetla
- zeleno svjetlo: Indicates the refrigeration cycle is active.
- crveno svjetlo: Indicates the defrost cycle is active.
6. Održavanje
The Intermatic DTAV40 Defrost Timer is designed for minimal maintenance. However, periodic checks are recommended:
- Vizuelni pregled: Periodically inspect the timer for any signs of physical damage, loose connections, or corrosion.
- čišćenje: Keep the enclosure clean and free from dust and debris. Use a dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Provjera funkcionalnosti: Verify that the defrost cycles are initiating and terminating at the programmed times.
Napomena: Uvijek isključite napajanje prije bilo kakvog održavanja ili pregleda.
7. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Tajmer ne radi | Nema napajanja Labavo ožičenje Unutrašnja greška | Provjerite osigurač/prekidač strujnog kruga Verify all wire connections Kontaktirajte kvalifikovano servisno osoblje |
| Defrost cycle not initiating | Incorrect pin placement Defrost duration not set Faulty defrost heater | Ensure defrost pins are correctly inserted Adjust defrost duration setting Inspect defrost heater and associated wiring |
| Defrost cycle too long/short | Incorrect defrost duration setting | Adjust the defrost duration setting as needed |
| Indikatorske lampice ne rade | Kvar sijalice Problem sa unutrašnjim ožičenjem | Lights are typically sealed; if functionality is fine, this may be cosmetic. If not, contact service. |
8. Specifikacije
- Model: DTAV40
- Voltage: 120 / 240V AC
- Amperage: 40 A
- Konfiguracija kontakta: 1 NE, 1 NC
- Max. On/Off Cycles: 48 dnevno
- Vrijeme odmrzavanja: 15 do 1425 minuta
- Materijal kućišta: Plastika
- Dimenzije proizvoda: 21"D x 18"W x 21"H (Note: These dimensions seem unusually large for a timer and may refer to package dimensions. Refer to product documentation for exact unit dimensions.)
- Težina artikla: 1.9 funti
- Radna temperatura: Consult manufacturer's official documentation.
- Certifikati: UL Listed
9. Garancija i podrška
For detailed warranty information, please refer to the official manufacturer's documentation included with your product or visit the Intermatic weblokacija. Garancija obično pokriva nedostatke u materijalima i izradi za određeni period od datuma kupovine.
For technical support, service, or replacement parts, please contact Intermatic customer service directly. Contact information can be found on the Intermatic weblokaciji ili u materijalima za pakovanje.
Proizvođač: Intermatic Incorporated





