DC48V 300W Outdoor Cabinet Air Conditioner Variable Frequency Grey Color Low Noise

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1. Specifications

(1) Technical Parameters

Dimension Diagram: H×W×D: 520×360×187mm

2. Introduction

This air conditioner is a cooling product developed for telecom industry where the AC power supply is lack. This air conditioner is powered by -48VDC. This air conditioner’s frequency can be regulated. It has cooling capacity regulating function, and the fans can regulate speed automatically to reduce noise.

The internal cycle air path absorbs the hot air from the upside, and discharges the cold air

from the downside of the air conditioner. The external cycle air path absorbs the external cold air from the downside, and discharges the hot air from the upside after heat exchange.

The variable frequency air conditioner is widely applied for outdoor telecom base station cabinet, outdoor battery cabinet, outdoor rectifier cabinet, outdoor UPS cabinet, outdoor network cabinet etc.

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

Diagram 1: System Principle Diagram

5. Electrical Wiring Diagram

Diagram 3: 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, 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 or RS232 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:≤5W;
• Working environment: -30°C~70°C; <90%RH;
• Installation method: guide rail,hanging;
• Dimension(L×W×H):150mm×190mm×45mm

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:

7. Mainboard Wiring Diagram

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

Introduction 

Tianjin Estel Electronic Science and Technology Co., Ltd (ESTEL(GUANGDONG)TECHNOLOGY CO., LTD), located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and technology innovative company, we engage in the R&D, manufacture, and sales of telecommunication equipment. Estel has a well-established team of technical and management experts who can meet customers’ specific needs accurately.

The base station integrated solutions and products include outdoor integrated telecom equipment cabinet, battery cabinet, RRU cabinet, power supply cabinet, environment monitoring system, TEC peltier air conditioner, AC220V compressor air conditioner, DC48V variable frequency air conditioner, heat exchanger, rectifier, UPS, embedded telecom power system etc. All the above solutions and products can be custom made.

Our products and solutions have been deployed all over China. Our main domestic customers are China Telecom, China Mobile, China Unicom, State Grid, Shenzhen / Beijing Metro and Huawei / ZTE etc. In addition, our products have been exported to Europe, North America, South America, Central America, Southeast Asia, Africa, Australia, Mid East countries, etc.

“ Customers First, Quality First ” is always our principle. We have attained many certifications, such as ISO9001, ISO14001, OHSAS18001, CE, UL, FCC etc. AS a telecom integrated solutions / energy saving system integrator in China, We have strong advantages in technology competitiveness, management competitiveness ,service competitiveness and price competitiveness. Through many years of experiences in design, production and implementation of different projects around the world, we have gained great reputation. Relying on professional technique and strict quality control, we will continuously offer high cost-effective products and solutions to our respectable customers globally. We will always try our best to meet customers’ need and requirement.

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