summary:

Mainly used in flammable and explosive places such as chemical engineering, paint shops, power plants, alcohol warehouses, PetroChina, laboratories, pharmaceutical factories, paint factories, paint spraying rooms, etc. The explosion-proof fan coil unit mainly achieves the expected effect by relying on the forced action of the fan and the effect of the surface cooler. The temperature difference between the supply and return water of explosion-proof fan coil units is constant, and the higher the water supply temperature, the greater the decrease in cooling capacity and the decrease in dehumidification capacity.

characteristic:

The explosion-proof fan coil unit has a small end volume, less land occupation, and convenient layout. Compact size, good balance, and fast installation. The structure is symmetrical, the lines are bright, the hem is straight, and the appearance is beautiful.

The fan has three adjustable speeds and adopts a permanent capacitor motor, making it the most energy-efficient and energy-saving.

Adopting high-precision bearing motors without the need for lubricating oil supply and specially selected sound-absorbing and insulation materials, it operates smoothly, has low noise, and has a long service life. In order to meet the needs of different users in different regions of China, our company produces fan coil series including: horizontal concealed installation, horizontal exposed installation, vertical concealed installation, vertical exposed installation, wall mounted, card type, etc. We can also produce special specifications of products according to user requirements.

The vertical unit is installed on a horizontal plane, keeping it vertical without tilting. When installing a horizontal unit, the four lifting points must be kept horizontal to prevent one end of the condensate pipe from lifting and causing condensate overflow.

The inlet and outlet water pipes should be equipped with valves for easy adjustment and maintenance, and attention must be paid to the cleanliness and insulation of the inlet and outlet water pipes. The condensate plastic pipes should not be flattened or have dead bends, so that the condensate water can flow smoothly during use.

The three-speed adjustment switch of the unit should start from high gear and then select other levels. When multiple units are shared, it must be controlled by a single machine.

● Power supply for the unit: single-phase 220V ± 10%, 50Hz AC motor casing should be installed with a safety grounding wire. If the unit is difficult to start, it is necessary to check whether the power supply is normal and whether the wind wheel is in contact with the wind casing. When installing the unit, attention must be paid to not damaging the casing, heat exchanger ribs, and fan to avoid affecting aesthetics and performance.

The allowable operating pressure of the unit is 1.6MPa.

The filter should be cleaned regularly.

Regularly wash and keep the heat exchanger clean to ensure good heat transfer.

After turning on the power, the fan should be turned on first to observe whether the rotation direction is correct during the period.

If the unit is installed in a dark place, there should be an access door for year-round maintenance.

The unit should cut off the power supply during maintenance.

When selecting a fan coil unit, please specify the product specifications, model, and left and right water inlet and outlet.

When selecting a return air box for horizontal concealed fan coil units, please indicate whether the return air method is bottom return air or rear return air.

Explosion proof sign: Ex d e IIC T4 Gb

The execution standards for this series of products are as follows:

GB3836.1-2010 Explosive Atmospheres - Part 1: General Requirements for Equipment

GB3836.2-2010 Explosive Atmospheres - Part 2: Equipment Protected by Flameproof Enclosures "d"

GB3836.4-2010 Explosive Atmospheres - Part 4: Equipment Protected by Intrinsically Safe "i"

GB3836.9-2006 "Electrical Equipment for Explosive Gas Atmospheres - Part 9: Encapsulated" m "

GB3836.15-2000 "Electrical Equipment for Explosive Gas Atmospheres - Part 15: Electrical Installation in Hazardous Areas (excluding Coal Mines)"

JB/10538-2005 "Explosion proof dehumidifiers and air conditioners"

Environmental requirements for explosion-proof fan coil units:

1. The inlet cold water temperature of the fan coil unit should not be lower than 7 ℃, otherwise it may cause condensation of the unit; The temperature of the incoming hot water should not exceed 80 ℃ (usually 60 ℃), otherwise it may cause corrosion of the copper pipes of the unit heat exchanger.

2. The recommended operating environment temperature for fan coil units is 16-36 ℃ for cooling and 10-30 ℃ for heating; The relative humidity of the air is ≤ 90%.

3. The fan coil unit is only used as a comfort air conditioner and should not be used in special occasions.

4. Do not install fan coil units in areas with corrosive gases.

Applicable scope

Zone 1 and Zone 2 hazardous locations

2. Class IIA and IIB explosive locations

3. Temperature regulation in workshops, control rooms, laboratories, and other places with temperature control requirements

When requesting Class IIC, please specify