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Manual J: A catalyst to cost-effective residential HVAC cooling system

March, 2017
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When you upgrade your HVAC system to ensure the optimized flow of conditioned air in your residential setting, it is of utmost consideration to calculate the total load and size of the AC units. The summertime is that time of the year when homeowners need to install the superior air conditioning unit that offers convenience, quality and energy-efficiency. In the process of setting up the effective HVAC system, Manual J does the best work possible.

Whenever there is a need for efficient functioning of your new equipment, Manual J as a sizing tool could be a catalyst for HVAC technicians. Here are all the benefits offered by Manual J that will inspire you to consider it while installation.

Through Manual J, homeowners can be able to determine the cooling needs of their houses. Initially, load calculations were done by engineers using pen, paper and slide rules. This has however changed and the calculations can be quickly done using computer programs.

Manual J does the calculation for you

It is essential to settle for the right system for your residential needs while discussing an idea of A/C upgrade with your professional contractor. Manual J enables homeowners to take a correct decision about their cooling needs. In old days, engineers used traditional methods to calculate the load. With Manual J, information can be processed quickly through computer program so that no guesswork is needed. You can generate report from any computer or tablet, which increases the level of convenience.

Improves efficiency and comfort

The key to increasing energy efficiency is using the right size of equipment that matches best with your cooling requirements. Manual J makes sure you have a properly sized system instead of unwieldy conditioners. This helps reduce your energy spending and increase its efficiency.

Furthermore, oversized systems have frequent on/off cycles, which means more consumption of power, improper cooling effect, clammy environment. Upon choosing correct size by a professional, the problems of humidity and mould are no longer faced.

Operating cost is at affordable level

Buying a larger equipment means you will not only pay higher for the large size, but you will also end up paying even more in terms of operating cost while using the oversized equipment. The size factors will not cause much trouble if you are to use it for heat gain and heat loss situation. However, due to frequent start and stop, the equipment will consume more of input power. At the starting stage, the power required is higher, and when it stops, residual energy is also dissipated. This is where right size of the equipment is needed as it keeps operating cost to its optimal level.

Helps choose high-performance machine

The loss that happens in form of wear and tear over years is mainly due to frequent short-cycle on and off. Choosing a perfect size for cooling the calculated space of your room in summertime ensures the equipment will run reliably. Large machines that have to go through great number of on and off consume more oil for operating compressor especially during start-up phase. So during its initial startup period, every time it runs, the machine pulls in great amount of load, which results in much heat. This problem is successfully handled by selecting the right size of cooling equipment using Manual J technique.

Keeps loads and bills of utility system within limits

It is obvious based on utility principles that larger equipment extracts greater load from utility system compared to the equipment of optimal size. Hence, selection of residential cooling equipment size becomes of critical value when summer time is on. Larger load leads to high billing, and the peak power consumption during afternoon further encourage utility system to charge you more.

In short…

From above discussion, we can conclude that Manual J can be of great help while determining the optimal size for HVAC residential cooling equipment. Professional technicians, who are conversant with Manual J, can optimize your cooling process by calculating residential load requirement.

Spaculus software developers can utilize the power of Manual J and give you the most competitive solution that enables you to serve your customers better. Get in touch with us when you are prepared to consider a reliable software development firm for your business.

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