浜松の空調設備工事・業務用エアコン設置｜設計・施工・メンテナンス・フロン点検まで一貫対応｜清明エンジニアリング

Seimei Engineering in Hamamatsu, established in 1993, offers over 30 years of experience and proposes the most suitable models and quantities for your installation environment at a fair price after conducting an on-site survey. Since the price varies depending on the building structure and delivery route, please take advantage of our free on-site survey and estimate service.

A2.The biggest differences between commercial and residential air conditioners are four points : “cooling and heating capacity (horsepower)”, “power supply”, “durability”, and “installation method” .

• Heating and cooling capacity : Commercial units have high capacity to handle large spaces. Capacity is expressed in horsepower (1 horsepower ≈ 2.8 kW, roughly equivalent to 8 tatami mats).
• Power supply : Commercial use often requires three-phase 200V (power supply), and new installations may require power supply construction work and applications to the power company.
• Durability : Designed for long-term, continuous operation, it can withstand use in stores, offices, and factories.
• Installation methods are diverse, including ceiling-mounted (cassette type), ceiling-suspended, floor-standing, and wall-mounted, and the piping and ductwork tend to be complex.

Using household appliances in a business space can lead to insufficient capacity, premature failure, and increased electricity costs. Seimei Engineering offers optimal appliance selections across major manufacturers including Daikin, Hitachi, Mitsubishi Electric, Mitsubishi Heavy Industries, Panasonic, and Toshiba , ensuring you find the perfect appliance for your space.

*Related: Types of commercial air conditioners and how to choose a manufacturer
Free consultation on model selection is available here.

1. Consultation : We will confirm the intended use, size of the space, budget, and your preferences.
2. On-site survey : We will check the size of the installation site, the ceiling space, the delivery route, and the power supply environment.
3. Quotation and Model Selection : We will select the optimal horsepower, indoor unit type, and number of units, and then provide you with a quotation.
4. Contract : We will enter into a contract once you are satisfied with the terms.
5. Installation : We will handle piping, power supply, and installation work.
6. Vacuuming and commissioning : The piping is vacuumed, and operation is confirmed through pressure resistance testing and commissioning.
7. Handover and After-Sales Support : We will explain how to use the product and provide information on our post-installation maintenance system.

The estimated construction period is 1-2 days for small-scale replacements and several days for large-scale or multiple-unit installations. Seimei Engineering handles design, construction, and maintenance in-house , saving you the hassle and cost of dealing with multiple contractors.

*Related: Flowchart of commercial air conditioner installation work Click here
to inquire about installation and request an on-site survey.

A4.The installation cost for commercial air conditioners is generally about the same as the unit price. This varies depending on the model and installation environment, but is roughly as follows:

Please note that additional charges will apply in the following cases .

• Outdoor unit installation at high locations/rooftops (crane/manual stair climbing)
• The indoor and outdoor units are far apart, requiring extension of the refrigerant piping.
• Installation of a new 3-phase 200V power supply and additional circuit breakers.
• Specialized work such as drilling holes in concrete walls

Since the exact cost varies depending on the site, it will be determined after a free on-site survey and estimate .

*Related: Breakdown of installation costs and estimated market rates
Free on-site survey and estimate available here.

A5.Choosing an air conditioning company based on the following four criteria will help you avoid making a mistake.

1. Local construction track record: Do they understand the buildings and climate of the Hamamatsu area?
2. Presence of qualified personnel: Are qualified electricians and refrigerant handling personnel in charge of installation and inspection?
3. Integrated service from sales to installation to maintenance: Is there a single point of contact, eliminating the need to deal with multiple companies?
4. Speed ​​of response to breakdowns: Since the shutdown of heating and cooling directly impacts business operations, a robust response system is crucial.

Seimei Engineering is an air conditioning technology company based in Hamamatsu, founded in 1993, with over 30 years of experience. We provide one-stop service from design and construction to maintenance, and offer solutions across major manufacturers such as Daikin, Hitachi, Mitsubishi Electric, Mitsubishi Heavy Industries, Panasonic, and Toshiba. We serve a wide range of facilities, from factories and shops to offices and public facilities, and have a proven track record of working with many listed companies.

*Superlative expressions such as “No. 1 in the region” and “lowest price” that cannot be substantiated are avoided due to the risks under the Premiums and Representations Act, and instead appeal to customers with the factual strengths listed above.

*Related: Key points for choosing a reliable contractor / Company information and transaction history can be found here.
Free consultation in the Hamamatsu area is available here.

A6.Maintenance of commercial air conditioners should be considered in terms of two aspects: “daily cleaning” and “statutory inspections.”

Routine maintenance (recommended)

• Filter cleaning: Once every 1-3 months
• Professional cleaning: Approximately once a year

Inspection based on the Fluorocarbon Emission Control Law (mandatory by law for commercial use)

Commercial air conditioners fall under the category of “Type 1 Specified Products,” and the managers are required to perform the following inspections.

Regular inspections must be performed by qualified personnel. Seimei Engineering provides comprehensive support, from daily cleaning to statutory inspections, ensuring both legal compliance and breakdown prevention.

*Related: Maintenance and Support Services
For inquiries regarding maintenance and inspections, please click here.

A7.Seimei Engineering offers free consultations, on-site surveys, and estimates via telephone and our inquiry form. We serve Hamamatsu City and surrounding areas.

• “The electricity bill for air conditioners is high these days.”
• “I feel like I’m not capable enough.”
• “I’d like to know an estimate of the implementation costs.”
• “I want to know if the quote from another company is reasonable (second opinion).”

We welcome inquiries like these. Our engineers, with over 30 years of experience, will handle your request without any pushy sales tactics. Please feel free to contact us.

*Related: Free Consultation/Inquiries Click here
for free consultation / Phone: 053-596-4725 (Reception hours: 8:00-17:00)

• Manufacturing | Metal processing factory in Hamamatsu City (approx. 600 m²): The challenges were the insufficient capacity of the old air conditioners, which had been installed for over 15 years, and the soaring electricity costs during the summer. Six 8-horsepower ceiling-mounted units were replaced with high-efficiency inverter units, reducing annual electricity costs for air conditioning by approximately 30%. The work was carried out with process adjustments that did not interrupt the production line.
• Commercial Facility | Restaurant in Hamamatsu City (approx. 250 m²): To improve customer comfort, four 5-horsepower ceiling cassette type (4-way) air conditioners were installed. To minimize disruption to business operations, the work was carried out at night after closing hours, and the replacement was completed without interrupting business the following day.
• Office | Office in Hamamatsu City (approx. 180 m²): Due to the increase in private rooms resulting from a layout change, a multi-split air conditioning system for buildings (1 outdoor unit + 6 indoor units) was adopted. This allowed for individual temperature control in each room while saving space.

We will provide you with specific details about our track record in industries and company sizes similar to yours when you contact us.

*Related: View construction examples and transaction records.
Consult about implementation examples.

A9.The energy efficiency of air conditioning equipment can be easily judged by comparing it using the following four indicators.

1. APF (Annual Energy Efficiency): An indicator of energy-saving performance throughout the year. A higher number indicates greater efficiency.
2. Energy conservation standard achievement rate: The degree to which the national energy conservation standards have been met.
3. Inverter control: Automatically adjusts output according to load, reducing wasted power.
4. Higher-end or lower-end model?: While higher-end models may cost tens of thousands of yen more initially, in many cases, the savings in running costs (electricity bills) can more than cover the initial investment.

Because office spaces operate for long periods, it’s crucial to compare not only initial costs but also total costs over several years . Seimei Engineering will propose energy-saving models from major manufacturers that best suit your company’s usage.

*Related: How to choose an energy-saving model Click here.
for a free energy-saving model diagnosis

When installing commercial air conditioners in Hamamatsu, attention must be paid to both regional characteristics and technical requirements .
Points to note specific to the Hamamatsu area

• Enshu’s dry winds and hot, humid summers: Selecting horsepower with ample margin will prevent performance issues during the peak of summer.
• Salt damage in coastal areas: In areas close to the sea, choosing a salt-resistant outdoor unit will extend its lifespan.

General precautions for commercial use

• Power supply capacity: A three-phase 200V power supply may be required, and confirmation of power supply construction and application is essential.
• Outdoor unit installation space and delivery route: Additional costs will be incurred for high or narrow locations requiring crane or manual delivery.
• Compliance with the Fluorocarbon Emission Control Law: Choose a qualified contractor who can handle everything from installation to mandatory post-installation inspections.

Seimei Engineering has a deep understanding of Hamamatsu’s climate and building conditions, and provides comprehensive support from optimal proposals before implementation to compliance with regulations after implementation.

*Related: Points to consider when choosing a vendor in Hamamatsu Click here.
for consultation regarding implementation in Hamamatsu.