1) Acting as an agent for reviewing and confirming the conformity of machinery and equipment standards

A. Check the technical standards of the mechanical equipment design document before the start of the construction of the client
B. Inspection of the suitability of machinery and equipment before use of the construction by the client

2) Performance inspection agency required for mechanical equipment maintenance standards

A. Functional inspection: Appearance · Divided into driving and safety Inspection at least once a quarter
B. Detailed inspection: Regarding the maintenance guidelines, the status table of the machinery and equipment subject to inspection, the functional inspection results, and the review items for the machinery and equipment subject to inspection
      Refer to tax review matters during detailed inspection of machinery and equipment, use 21 types of equipment, and conduct detailed inspections at least once a year.
- Hardware and equipment system review
  (1) Appropriateness of maintenance instructions
  (2) Operating status of the hardware system
  (3) Whether the design value and the measured value on the status table of the inspection target match
- Establish a performance improvement plan
  (1) Aging according to the life of machinery and equipment
  (2) Non-conformities and improvements according to the detailed inspection questionnaire
  (3) Need for performance improvement and detailed improvement plan for each year
- Review of energy usage
  Energy consumption by category, such as cooling and heating

1) Buildings with a total floor area of 10,000 square meters or more among buildings classified by purpose (hereinafter referred to as "buildings by use") classified in accordance with Article 2, Paragraph 2 of the Building Act
       Buildings (excluding apartment houses and warehouse facilities pursuant to Items 2 and 18 of the same paragraph)
2) Apartment houses (hereinafter referred to as "apartment houses") pursuant to Article 2, Paragraph 2, Item 2 of the Building Act that fall under any of the following items:
A. Apartment houses with more than 500 units
B. Apartment houses with more than 300 households with centralized heating (including district heating methods)
3) Articles 14, Paragraph 1, Item 3 of the Machinery and Equipment Act Buildings, etc. designated and notified by the Minister of Land, Infrastructure, Transport and Tourism in consideration of the scale of the buildings, etc.
A. Facilities pursuant to Article 2, Item 1 of the Special Act on Safety and Maintenance of Facilities
B. School facilities in accordance with Article 2, Item 1 of the School Facility Business Promotion Act
C. Underground stations pursuant to Article 3, Paragraph 1, Item 1 of the Indoor Air Quality Management Act (hereinafter referred to as "underground stations") and underground shopping malls pursuant to Paragraph 2 of the same paragraph (hereinafter referred to as "underground malls")
D. Buildings owned or managed by the head of a central administrative agency, the head of a local government, or any other person designated by the Minister of Land, Infrastructure, Transport and Tourism, etc.

1) Heat source and heating and cooling equipment: refrigerator, cooling tower, heat storage (ice storage, heat shrinkage), boiler, heat exchanger, expansion tank, pump (cooling and heating),
     New Energy (Geothermal, Solar, Fuel Cell), Packaged Air Conditioner, Constant Temperature and Humidity
2) Air conditioning equipment: air conditioner, fan coil unit
3) Ventilation equipment: ventilation equipment, filt
4) Sanitary Equipment : Sanitary Equipment
5) Water supply and hot water supply equipment: water pump, hot water tank, water tank and water tank
6) Wastewater and drainage aeration and stormwater drainage equipment: Wastewater and drainage pipes
7) Five Crystal Chemical and Water Recycling Equipment: Sewage Purification Equipment, Water Reuse Equipment
8) Plumbing Fixtures: Piping and Accessories
9) Duct equipment: ducts and accessories
10) Thermal insulation equipment: thermal insulation and accessories
11) Automatic control equipment: automatic control equipment
12) Soundproof, dustproof, and seismic equipment: soundproofing equipment, dustproof equipment, and earthquake-resistant equipment.
13) Facilities in apartment units (at the request of residents): boilers, air conditioners, ventilation equipment, sanitary appliances, plumbing

1) Construction Engineers Association [Engineers registered in the Enforcement Decree of the Construction Technology Promotion Act: 19 people
2) Engineering Association [Engineers registered in the Enforcement Decree of the Engineering Industry Promotion Act: 40
3) Maintenance manager according to the Machinery and Equipment Act: 40 people