E-Room Air Conditioner

Hisurp, as a leading manufacture of industrial air conditioners, its E-Room Air Conditioners are used in workshops, electrical rooms, and power rooms, requiring year-round cooling. The operating environment of these air conditioners is characterized by high humidity and high corrosion, and the system must ensure stable operation under these harsh conditions.

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Application

E-Room Air Conditioner is widely used in various industrial fields such as steel plants, chemical plants, paper mills, printing plants, power plants, substations, food factories, garment factories, and microelectronics factories, as well as various electrical control rooms.

Working Conditions

The standard operating temperature range for E-Room Air Conditioner dry bulbs is 21-35℃ (indoor) / 21-45℃ (outdoor);
The high-temperature type, when used with the spraying solution, allows outdoor temperatures up to 60℃;
The ultra-high temperature R142b E-Room Air Conditioner can reach up to 80℃.

Compressor Locates in Indoor Unit or Outdoor Unit

Positioning of the outdoor unit

1. The indoor unit is relatively thin, while the outdoor unit is heavy, requiring a foundation for installation;
2. The indoor unit's noise level is slightly lower, unaffected by the compressor;
3. The main control components are located in the outdoor unit, with compact piping. It is generally recommended to run the power supply through the outdoor unit;
4. The compressor's oil return is significantly affected by the installation height and distance of the outdoor unit. Strict piping return processes are required, and longer pipe distances result in greater cooling loss;
5.The outdoor unit's computer board and electrical components have high requirements for dust, moisture, high temperature, and corrosion protection, leading to a slightly higher failure rate.

Positioning of the indoor unit

1. The indoor unit is slightly thicker, while the outdoor unit is lighter, making installation simpler, with fewer restrictions, and a simpler oil return process.
2. Indoor unit noise is slightly higher due to the compressor.
3. Main control components are located in the indoor unit, resulting in a compact layout. The indoor unit powers the main unit, making management and maintenance convenient.
5. Smaller diameter copper pipes and wiring specifications reduce overall project cost.
6. All connecting pipes are high-pressure pipes, resulting in low resistance loss, good oil return, fewer restrictions on long pipe distances and large height differences, and less cooling loss.
7. The outdoor unit has no computer board, electrical components, or compressor, eliminating concerns about dust, moisture, high temperatures, and corrosion, and resulting in a low component failure rate.

Project Cases

E-Room Air Conditioners are installed in steel factory’s electric room.

FAQ

How do I choose the right size?

Selecting the correct capacity is essential for stable performance and energy efficiency.

Calculate total heat load from electrical equipment (transformers, drives, control panels)
Consider room size and insulation conditions
Evaluate indoor/outdoor temperature difference
Add safety margin (typically 10–20%) for continuous operation
For high-density equipment rooms, larger capacity or modular systems may be required

Proper sizing ensures the E-Room Air Conditioner operates efficiently without overloading or short cycling.

Why is my air conditioner not cooling well?

Poor cooling performance usually comes from operational or environmental factors:

Dirty or blocked air filters reducing airflow
Refrigerant leakage or insufficient charge
High ambient temperature exceeding design limits
Poor ventilation or heat accumulation in the room
Incorrect unit sizing for the actual heat load

Regular inspection and preventive maintenance are key to keeping the E-Room Air Conditioner stable in industrial environments.

How do I clean the filter?

Filter maintenance is critical for airflow and cooling efficiency:

Turn off the unit before maintenance
Remove the filter from the air inlet section
Clean using compressed air or mild water rinse (if reusable type)
Dry completely before reinstalling
Clean cycle: typically every 1–3 months depending on dust level

In high-dust environments such as steel plants or paper mills, more frequent cleaning is recommended.

What should I do if the unit freezes up?

Evaporator icing can occur under abnormal operating conditions:

Check for low airflow (clogged filter or fan issue)
Verify refrigerant level is correct
Ensure ambient temperature is within operating range
Shut down the system to allow ice to melt naturally
Restart after confirming normal airflow and system pressure

If freezing occurs repeatedly, technical inspection is required to avoid damage to the E-Room Air Conditioner system.

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