Heating & Cooling air conditioning should come hand in hand, now with the heat pump air conditioning systems. Installing an air source air conditioning system with heat pumps means you get a system that heats and cools, providing you with the ultimate in climate control. Heat pump air conditioning from Mitsubishi Heavy Industries is a very energy efficient means of heating your office or home. The capital cost of installing a heat pump air conditioning system is affordable.


Here are some simple guidelines to help you through the process. Finding the ideal system starts with asking the right questions.

Step 1: Consider your home
Before you talk to your local independent dealer, take a look at your current home environment and identify your comfort needs. Start by answering the following questions:

  1. Do your heating and air conditioning bills seem too high?
  2. Are any of your current HVAC system units too noisy?
  3. Do you have a problem with humidity in the summer? Dry air in the winter?
  4. Are there rooms that are always too hot or too cold?
  5. Do you have pets or do any family members suffer from allergies?
  6. Do cooking odors linger?
  7. Do you want more control over when and how your system runs?
  8. Do you want a system that’s easy to maintain?
  9. Is your current system still covered by a warranty?
Step 2: Figure out your system
Get a better of idea of which system can best meet your home comfort needs.
Step 3: Make an appointment with an independent marketing/ technical Specialist
After considering your current situation and home/office system, our marketing/technical Specialist can help custom design a system and apply the precise air conditioning systems to achieve maximum efficiency, reliability and comfort. Be specific about your needs. Be ready to talk to our marketing/ technical team about where you live, the structure of your home, and any specific comfort needs. This is especially important if you’re in the market for the first time or installing a new system. Get technical analysis, Ask our marketing/ technical experts to perform a thorough structural analysis of your home/office to determine the proper system type and size for your home/office. Think about financing, Remember, you’re investing in your year-round comfort—not to mention the long-term comfort of you and your family. Ask our experts about various financing options being offered by the company.
Step 4: Install Reliable Air Conditioning system
Ask our expert to program the thermostat setting for you, go over the owner’s manual, and walk you through the (minimal) maintenance you can do yourself. Also, don’t forget to review the limited warranty information for your specific models.


A system that is too large will cool or heat your house quickly, but you still may not feel comfortable. That’s because it will satisfy the temperature setting on your thermostat before it can adequately remove sufficient moisture from the air—which is what makes you feel so sticky and uncomfortable in summer. What’s more, the stress of short cycling (too many starts and stops) will shorten the life of your equipment and increase your heating and air conditioning bills.

A system that is too small just cannot get the job done. The air conditioner will run constantly in the summer and the furnace will do the same in winter which may overtax your system and increase your energy consumption.
In most homes across the country, systems are in fact too large. And an oversized system not only makes it more difficult to control your comfort levels, it costs you money, because you’re essentially paying to heat or cool space that isn’t even there. That’s why a properly completed load calculation is so important. Your independent Trane dealer can determine the correct system type and size for your home by doing a room-by-room load calculation. This heat loss/heat gain analysis is the best indicator of the correct system size and takes into consideration such critical factors as:



Replacing your home’s heating and air conditioning system is a major decision. You have to think more than just about the initial purchase price and factor in how much your system is going to cost to operate and maintain year in and year out. Remember that the higher the efficiency rating, the greater the energy savings. The right air conditioning matched system can give you better comfort at reduced operating costs.


Every homeowner’s needs are different. And, for every need, there are many different products, product applications and installation practices available to meet those needs. In general, the installed price of a new system is influenced by the following:

1. Cost Factor: Home Construction
The way your home is constructed can affect the size (capacity) of your air conditioning and heating system. For example, insulation can play a role. R-values tell you the insulation’s resistance to heat flow; the higher the R-value, the more resistant. Insulation with higher R-values can help decrease the system size you’ll need for your home. Lower R-values may mean that the capacity of your system has to be increased in order to keep your home comfortable.
Homes with well-insulated windows, doors, walls, roofs, attics, floors, basements, and crawl spaces, along with sealed exterior cracks and seams, typically require less air conditioning and heating capacity than homes that are not as well insulated.
In general, the smaller the capacity of your system, the lower the energy consumption and the greater the energy savings over the life of the system. That’s why correct capacity enough but not too much is so important.

2. Cost Factor: Home Location
The region where you live will also affect the size of your heating and air conditioning system. For example, the same size home located. Terai region will require a larger capacity air conditioning system than a similar home in the Hill region of Nepal. Of course, a home located in the hill region of Nepal will need a larger heating capacity requirement than a home in the Terai region.
Which direction does your home face?
The direction your home faces is another consideration in determining system size. For example, a home with more exterior wall areas that face south and west will need greater air conditioning capacity than one with more exterior wall area facing north and east. If your home has a large window area that faces south or west, you’ll need greater air conditioning capacity, as well.

3. Saving energy saves money
When properly selected, higher efficiency MHI matched systems give you improved comfort at reduced operating costs by using fewer energy resources. With a proper load calculation for the right-sized system and one of MHI’s many high-efficiency products that meet or exceed ENERGY STAR guidelines, you can keep down your utility bills and energy costs.



Another vital step to getting a more efficient matched system for your home is to have our expert conduct a load calculation. Most homes today are heated and cooled by units that are too big for the home—others are too small. When an air conditioner or heat pump system is not the proper size (capacity) for a home, an array of problems can result. Temperatures might be uneven. Units might not run long enough to properly control humidity. You may have more maintenance problems over time. And the money you think you might be saving may be reduced, because with units that are too big, you’re essentially paying to heat or cool space that isn’t there. Along with a proper load calculation from expert—who accurately calculates the right size system for your home—we design all our products in a variety of sizes to make sure that each one works as intended.


All household air conditioners (under 12kW cooling) must comply with the Energy Information (Household Air Conditioners) (No 2) Regulations 2005.  This regulation implemented the energy labelling for air conditioners.  The key points are:-

1.      Manufacturers have an obligation to provide Energy Labels to dealers for their product
2.      The design of the label must comply with the Regulations and include the energy efficiency class of A to G
3.      The information provided on the energy label must be measured in accordance with the harmonised standard EN 14511​


Supplier’s name or trade mark.
• Model   
• Energy efficiency class (A-G)   
• Indicative annual energy consumption, assuming full load at 500 hours per year.
• Cooling output in kW at full load.
• The EER (energy efficiency ratio) in cooling mode at full load  
• Type of appliance: cooling only, cooling/ heating  
• Cooling mode: air cooled, water cooled  
• Noise rating, where applicable  

For air conditioners with a heating capability, also:
• Heat output in kW at full load.
• The COP (coefficient of performance) in heating mode & energy efficiency class (COP = 1 if resistive element heater)​

Leave a Reply