Explosion proof variable frequency air conditioner

Explosion proof fixed frequency air conditioner andExplosion proof variable frequency air conditionerDifferences and characteristics:

firstlyExplosion proof fixed frequency air conditionerThe operating frequency of the compressor is fixed, and the pressure in the pipeline and the operating current of the compressor remain basically unchanged. However, the operating frequency of the compressor in a variable frequency air conditioner varies with the indoor temperature, resulting in changes in the operating current of the compressor and the pressure in the pipeline.

SecondFixed frequency air conditionerThe power cord of the air conditioner only supplies power to the indoor and outdoor units, so sometimes when the outdoor unit is abnormal, the indoor unit can work normally and can provide separate power to the indoor and outdoor units. The circuit boards of the indoor, indoor, and outdoor units of the inverter air conditioner adopt a single line serial bidirectional communication method. Therefore, when the connection of the mains power line, the 300V power supply circuit, the communication circuit, and the microprocessor circuit are abnormal and cause communication abnormalities, the air conditioner will enter a protective state.

three isExplosion proof variable frequency air conditionerThe filtering capacitor capacity of the 300V power supply circuit is relatively large (over 2000 Hong F)

Four isExplosion proof fixed frequency air conditionerAfter refrigerant leakage; The amount of refrigerant added is not very strict, allowing for a certain degree of error, while variable frequency air conditioning requires the refrigerant amount added to be as accurate as possible, otherwise it may affect the cooling/heating effect; It may even cause the air conditioner to malfunction.

When determining whether the fixed frequency air conditioner is operating normally, power can be directly supplied to the motor terminal on the compressor housing. If the compressor is running normally, it indicates that the compressor is functioning properly; otherwise, it indicates that the compressor is abnormal. The variable frequency air conditioner uses a compressor motor that is powered by an IPM module, so it cannot directly provide mains voltage to the compressor, otherwise it may cause damage to the variable frequency compressor.

Explosion proof air conditioningApplicable environment:

Suitable for Zone 1 and Zone 2 explosive gas environments; Dust and explosive production sites;

Suitable for Class IIA, IIB, and IIC explosive gas environments;

Suitable for environments with temperature groups T1 to T5;

Suitable for explosive hazardous environments such as food processing, petroleum refining, chemistry, battery storage, power facilities, offshore platforms, paint shops, chemical, pharmaceutical, and military facilities;

Explosion proof air conditioningThe whole machine adopts weak current technology to isolate inherently safe circuits, and is manufactured and explosion-proof treated through special processes. The design and manufacturing of the product strictly follow the relevant national standards:

GB 3836.1-2000 "Electrical equipment for explosive gas atmospheres - Part 1: General requirements"

GB 3836.2-2000 "Electrical equipment for explosive gas atmospheres - Part 2: Explosion proof type" d ""

GB 3836.3-2000 "Electrical equipment for explosive gas atmospheres - Part 3: Increased safety type" e ""

GB 3836.4-2000 "Electrical equipment for explosive gas atmospheres - Part 4: Intrinsic safety type" i ""

GB 3836.9-2006 "Electrical equipment for explosive gas atmospheres - Part 9: Sealed type" m ""

The surface of the air conditioner adopts temperature limiting protection technology, comprehensive anti-static technology, and various safety protection technologies;

Featuring a wide voltage design, it is suitable for unstable power sources and voltages in the field; 220V/50Hz、220V/60Hz、110V/50Hz；

Explosion proof markings: ExdibmbIIBT4 Gb, ExdibmbIICT4 Gb.