DV48V 2500W Air Conditioner For Outdoor Telecom Cabinet With High Cooling Capacity

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1. Specifications

(1) Technical Parameters

Dimension Diagram: H×W×D: 940×482×300mm

2. Introduction

The ECA025ED air conditioner has below functiong:

* Remote measuring, remote communication, remote control, which can realize multiple automatic protection and comprehensive self-testing function;

* DC Air conditioner, Power supply voltage range;
* Fit for harsh condition (T3), R134a refrigerant ;
* Multiple self-protection design , RS485 communication port (MODBUS-RTU protocol);
* LED display, all the settings can changed at the field;
* Strict process control and international brand parts deployed to ensure high quality and
product;
* Dry contact alarm output, NO/NC optional.

3. Features

• Strong adaptability
• High intelligence
• High precision
• High reliability
• Low noise
• Low energy consumption
• With 4 way switching value detection
• With 1 way room air conditioner control
• Wide input voltage range: 48VDC±15%
• With dry contact alarm output

4. System Principle Diagram

System Principle Diagram

5. Electrical Wiring Diagram

Wiring Diagram

Wiring Ports:

0V -48V: power supply input (voltage input: 48VDC±15%)

F+ F- : direct ventilation output

AL1 AL2: general alarm output

A+ B- SGND: RS485 communication interface

N: not connected pin

6. System Control

6.1 Application

ET872 controller is a type of universal intelligent controller. It is controlled by highly integrated STC single chip microcomputer. It can intelligently control operating and hydrogen exhaust of thermostatic cabinet air conditioner, and can control a telecom room air conditioner. It have the following functions: fault self diagnosis, power on self start, restart after unexpected failures caused by other reasons.

The controller features perfect performance, easy and fast installation and setting, which is widely used in telecom cabinet, small and medium sized telecom room, UPS room, outdoor base station room, bank ATM machine note change room etc.

6.2 Main Technical Parameters

• 2×16 Chinese/English shift LCD display, user friendly;
• Simultaneously display temperature and humidity inside the box and communication room temperature;
• Temperature measurement accuracy: 0.1 °C; humidity measurement accuracy:4%;
• Can store 180 days’ daily event record, 1 record every day;
• Daily highest temperature, lowest temperature, average temperature
• Daily event record;
• Save the former day’s daily data at 0:00 every day; Can query 180 days’ daily record information;
• RS485 communication,RTU-Modbus protocol, support remote detection and control;
• Use PID control algorithm, intelligently adjust output power, optimize energy efficiency;
• Controllable air conditioner quantity: 2 sets. 1 set of air conditioner for communication room, and 1 set of air conditioner for thermostatic cabinet.
• Control mode: pulse (Non dry contact air conditioner), conducting (dry contact air conditioner);
• Real-time control air conditioner on/off;
• Power supply: DC48V;
• Power consumption: 750W;
• Working environment: -40°C~70°C;
• Installation method: guide rail,hanging;
• Dimension(L×W×H):940mm×482mm×300mm.

6.3 Operating Instruction

ET872 uses user-friendly interfaces, which can be operated easily. All the operations can be realized with four buttons. The following is the control board diagram:

Control Board Diagram

7. Mainboard Wiring Diagram

Inner Terminals Wiring Diagram

JD1: main power supply input (DC48V);

JD2: heating control output;

JD4: fan control port:

        1- 48V; 2- inner fan control; 3- inner fan feedback;

        4- outer fan control; 5- outer fan feedback; 6- 0V.

JD5: direct ventilation (hydrogen exhaust) output port (48V);

JD6: DC compressor control port:

         connected with compressor control board control port. Please note the direction.

JD7: alarm ouput port:

        1, 2: general alarm output dry contact;

        3, 4: air conditioner system alarm output.

JD8:

        1, 2: remote control dry contact input;

        3, 4: working status output dry contact;

JD9: communication port:

        1: RXD (or 485A+); 2: TXD (or RS485B-); 3: SGND;

JD10: connected with four DI input.

8. Packing and Shipping

Our Delivery Agent

The goods can be shipped by sea, by air, by courier, by land, by train, etc.

Besides the following delivery agent, we can also look for the delivery agent with the best price in china if you need us to do for you.

9. Our Contact Information

Mobile Phone: 0086-13752765943

Telephone: 0086-0755 66600941

Email: info@estel.com.cn

           lxf.estel@hotmail.com
Skype: fiona.liang10

Website: www.estelecomcabinet.com