Tuesday, June 25, 2013
2001 Goodman A.C unit inside my brother's house
Monday, June 24, 2013
What's the Average Cost for brand new Furnace-Ac?
Lots of people purchase their initial furnace-ac without knowing. Usually once they buy their house, the Air conditioning product is already installed. Even if people purchase their next Air conditioning system they frequently open the contact book and call the top Air conditioning contractor pointed out out there. This tactic will assist you to keep your house warm but can result in investing a sum that is a lot more than necessary.
You will find many different ways through which it's possible to minimize the price of purchasing and setting up a brand new furnace-ac. First contact several Air conditioning companies to request an offer. Bear in mind the decision a person makes shouldn't just rely on the price of the gear alone. Select a trustworthy contractor as it is crucial in determining the general cost and satisfaction. Various public and private organizations provides financing and rebate incentives for purchasing a brand new Air conditioning system.
Among the best methods to raise the need for a home is by improving the house with new furnace-ac. Among the great causes of upgrading would be to conserve energy. Protecting the power which is often used every month can substantially assistance to lower the bills. Assisting to save the homeowner cash on bills and improving the upfront market price of the home are simply two advantages of setting up a brand new Air conditioning system.
Many houses presently have older Air conditioning systems which use a refrigerant referred to as R22 refrigeration which is accustomed to relax the environment passing within the room. R22 is renowned for using up the ozone layer. To be able to prohibit all R22 chemicals from further using up the ozone, the federal government passed new laws and regulations that have been made mandatory for the new air conditioning units which were being installed to make use of merely a new refrigerant named R-410A. This R-410A refrigerant is more expensive but works well in not doing harm to the ozone.
Houses are usually operating around a 70-80% rate of efficiency which suggests that 70-80% from the energy can be used to operate the furnace in the home and also the relaxation 20-30% is wasted. At the moment occasions the majority of the furnaces which are being installed are 90% better or even more efficient which suggests that 90% from the energy is consumed, which can help to conserve great deal of money within the entire lifetime of the house furnace because of less waste.
Upgrading the gear is a great approach to improve a house however it does require upfront cost. First there's the price of the brand new Air conditioning system. This cost ranges between 0 -00 with respect to the brand, size and also the model. The typical cost for any new furnace is roughly ,400 for that unit and includes not one other elements costs which can be used for setting up the furnace. The cost of the new ac is between 0-,000 which is dependent upon the company, model and size. The typical cost for any new ac for any 2 bed room / 1 bath home is roughly ,200 that is only for the system and doesn't include any installation costs. The coil from the new furnace costs around 0- 0 which of the new ac costs roughly 0.
When you're ready to customize the Air conditioning system, cost is definitely an problem. You need to research your options, request plenty of questions and obtain a minimum of three quotes from trustworthy Air conditioning companies.
Sunday, June 23, 2013
Greater SEER Alternative Ac and Electric Systems
It's not unusual to locate package and split system ac models within the Phoenix market which have been being used because the 1970's or 1980's. Since the average existence expectancy of this kind of Air conditioning devices are around twelve to 15 years, it's about time to retire a few of these tired old workhorses.
An additional benefit whenever you replace older ac systems could be a significant rise in energy-efficiency by having an associated reduction in energy costs. Considering the variety of discussion we've been hearing in news reports recently advocating many of us to become eco-friendly and save energy that's most likely not really an uncomfortable consequence.
Together with what's promising of one's savings you will find several factors the competent ac contractor could make you conscious of when it's time to replace older equipment. I must share a couple of of these along with you. First let us discuss split system warmth pumps after which briefly cover stuff that are typical to both package models and split systems.
As SEER (Periodic Energy-efficiency Ratio) rankings for brand new ac equipment have elevated, Air conditioning industry practices which have been marginal previously will no more be acceptable. Certainly one of individuals unacceptable practices happened whenever split system electric condensing models were changed. The most popular practice previously ended up being to switch the electric condensing unit without first verifying the new condensing unit was suitable for that old air handler. Several problems may arise whenever there's a mismatch between your condenser and also the indoor air handler.
The very first issue is the lower efficiency which will derive from changing a mature condensing unit without changing the environment handler simultaneously. The reason behind this really is that ac producers don't rate current model electric condensing models with "antique" air handlers which are two decades old. To offer the released SEER, a electric condensing unit should be matched up by having an indoor air handler or fan coil unit that it's been ranked with. Quite simply, should you use a new 13 SEER condensing unit by having an old 8 or 9 SEER air handler, the particular efficiency accomplished is going to be under 13 SEER.
Another problem is there might be a mismatch from the internal coil volumes between a mature air handler along with a more recent condensing unit. As minimum SEER mandates have needed elevated efficiencies through the years, producers make improvements to both indoor and outside coils to be able to increase warmth transfer efficiencies. More recent condensing models could have a different internal coil volume than a few of their antique alternatives. If your new electric condensing unit is a component of a classic air handler it may lead to improper operation either in the heating or even the cooling mode that will need periodic refrigerant charge changes and unnecessarily increase service costs. Additionally, it may lead to system reliability issues.
Another problem many of us are facing may be the improvement in the qualities from the chemicals and compressor lubrication that are used within the new systems. Since new ac equipment using R22 refrigerant can't be manufactured after 2010, the key producers have previously began making more recent high quality models utilizing R410a refrigerant and polyolester (POE) oils. The brand new refrigerant has qualities that are not the same compared to R22 that's been the main refrigerant for split system and package ac systems for many years. In a nutshell, R410a isn't suitable for the refrigerant flow control products within the older air handlers which were created for R22. Even when the flow device might be transformed, could also be problems that could develop with time when the original mineral oils aren't adequately washed in the system.
A 4th consideration may be the refrigerant line size. The brand new high quality R22 condensing models frequently require bigger diameter vapor lines than individuals which were initially installed using the old system. It might not be economically achievable to exchange the vapor lines, so you will see deficits in efficiency consequently from the elevated refrigerant pressure stop by the more compact than suggested vapor line. One possible means to fix resolve this problem is always to use a new R410a split system condensing unit along with a new R410a air handler. Since R410a generally requires more compact vapor lines than R22, it might permit the employment from the existing more compact vapor lines. Suggested methods for getting rid of residual mineral oil in the existing lines would need to be viewed when the conversion to R410a was implemented.
When the suggestions above factors are taken into account, it might be clearer that the most effective strategy would be to switch the indoor unit together with the electric condensing unit. Although this is more costly in advance, it can benefit avoid significant downstream issues later.
Now we have talked about issues unique to separate system substitutes, let us consider some factors which are present with both package models and split systems.
One problem that's present with both package models and split systems in greater SEER items is reduced cooling capacity at greater outside temps. This is often verified by checking manufacturer's rankings for that old ac system and also the new ac system at outside temps above 100 levels. The more recent high quality systems tend to get rid of sensible cooling capacity more rapidly compared to lower efficiency models which were manufactured previously. It is really an essential aspect when looking for a current system that's doing merely a marginal job of cooling the area it serves. A brand new system might have to be bigger in ability to make the preferred cooling effect in the greater outside temps we have seen in Arizona. There's a caveat with this particular also. You wouldn't want the alternative system to become grossly extra-large either or it won't perform as intended.
Another factor you will observe is that lots of the more recent systems have bigger cabinets compared to older style models. The bigger cabinet size may become an problem in limited areas. Since minimum clearances should be maintained, a brand new system might not fit in which the old system was installed. This consideration is going to be unique to every specific application, but you should know from it so you do not get an uncomfortable surprise.
One further item to understand regarding both package or split system substitutes may be the factor in equipment costs. Greater efficiency has a greater cost. According to one leading manufacturer's prices for any 5 ton package electric, the jump from 10 SEER to 13 SEER comes using more than a 30% differential in cost. If it's been some time because you have changed an aura conditioning system, you might have "sticker shock". Material cost increases together with using advanced technologies like variable speed compressors, dual compressors or unloading scroll compressors together with variable speed fan motors that has been enhanced control systems all lead to greater equipment costs. Keeping this in your mind when you're projecting future costs for Air conditioning equipment alternative will help you develop better alternative budgets.
Saturday, June 22, 2013
KozyKool Ductless Split Unit Air Conditioner 18,000 BTU 2 Ton Cooling, Dehumidification, Ventilation, High Efficiency 13 SEER with Remote Climate Control. by KozyKool, Inc
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KozyKool is becoming known as a leading provider of cutting edge efficient Ductless Split Unit Air Conditioners. They have engineered their product with precision and expertise allowing for a superior product at a competitive price. Save some money on these back stock Cooling units to prepare again for the summer .
Feature
- Toshiba Compressor
- Includes 20 Ft Insulated Copper Wire Installation Kit
- Pre Charged with R410-A Eco Friendly Refridgerant
- Smart LED Display with Remote
Friday, June 21, 2013
My 1999 Ruud AC is dead! Gotta be changed soon!
Thursday, June 20, 2013
Payne Warmth Pumps
Wednesday, June 19, 2013
2 Goodman warmth pumps, thermostats, and gas logs
Tuesday, June 18, 2013
How You Can Eliminate Fruit Flies Having A Homemade Fruit Fly Trap
Anybody that has ever created a couple of bananas sitting out or forgotten to alter their garbage knows very well the issue with fruit flies. It appears that when they have penetrated your kitchen area, you cannot eliminate them. You are able to scrub, clean, remove tempting fruit and spray the garbage can with disinfectants, however they always return. You cannot help but cringe just searching their way.
We've always had issues with fruit flies, and among the primary reasons because we reside in a condo by law - must recycle. Due to where we live, we must keep our recycling containers inside until they may be discarded once per week. When the recyclables aren't washed good enough after getting used, they create an ideal breeding ground for fruit flies. They love items of decaying food remains and appear to thrive in the littlest amount. When fruit flies relocate, they just do not wish to leave and can lay eggs on and in anything possible - fruits &lifier veggies left around the counter, sink drains, garbage disposals, empty bottles &lifier cans, garbage bags, as well as mops and rags.
A Couple of Fun Details About Fruit Flies:
- Can lay as much as 500 eggs at any given time
- All of their lifecycle is finished within per week
- While considered mainly a pest, they have the possibility to contaminate food with harmful bacteria
Everyone knows that getting rid of the meals, eliminating the garbage &lifier cleaning plays a large role, but we understand what it's prefer to move a bit of fruit and also have a swarm of fruit flies fill the environment simply to escape your attempts at killing them. Where could they be gonna go? Clearly those floating can not be easily taken or wiped out, so they'll linger about until they have some other spot to lay eggs and also the whole cycle begins again.
In most my attempts, I discovered the easiest method to capture and take away those that escape is to produce a simple trap utilizing a jar, plastic wrap and a bit of food. Here's how it operates:
1. Obtain a small jar you do not intend on using again ( just like a baby food jar or something like that similar ) and clean it well. Make certain it's not a jar having a funky smell like a used pickle jar or something that use to possess strong spices or herbs. You'll need a clean, odor free jar.
2. Have a slice of blueberry and put within the jar. For this reason you'll need a clean, odor free jar - to ensure that the blueberry smell will not be overpowered by other not-so-tempting smells. Blueberry appears to operate the very best, however, you can experiment.
3. Fit a bit of plastic wrap over the top jar, ensuring they fit tight and well sealed round the edges. Then have a pen or pencil and poke four to five holes within the plastic, just large enough for any fruit fly to suit into. When a fruit fly crawls in, it cannot escape. What you know already they'd just fly out with the holes, however they will not!
4. Put the jar within an area where you've seen probably the most fruit flies. With respect to the quantity of fruit flies you've, you will probably start to see the jar fill in just a couple of hrs. After 24 hrs, you'll uncover precisely how bad your fruit fly issue is!
This straightforward, affordable &lifier safe method works perfectly and when you wouldn't want the jar on public display, you could slip it behind the garbage can, within the cupboard or perhaps underneath the sink (Just don't be done with it!). You will need to empty the jar every 3-4 days before any eggs are able to hatch. While adult fruit flies can't easily escape with the holes, their maggots can effortlessly, and on top of that - they're disgusting to determine moving around within the jar. You won't want to see this stuff moving in your counter!
Cleaning up the jar should not be considered a problem. For those who have a sort heart, you are able to decide to allow them to go outdoors. Personally, I spray the small buggers with bug spray, clean the jar and begin the entire process once again basically think you will find still some fruit flies left to capture.
For bad fruit fly problems, you will need to make use of this way of a great two days to make certain you've taken nearly all fruit flies. You may even desire to use a couple of jars in various places. Before lengthy, your kitchen area is going to be normal again.
Monday, June 17, 2013
2 Ton 14.5 Seer Rheem Air Conditioner - 14AJM24A01 by Rheem
2 Ton 14.5 Seer Rheem Air Conditioner - 14AJM24A01 was created to give you an extraordinary household item for each and every residence. These had been some points which you should preserve in thoughts ahead of you get the new item from each and every industry installation in your house. Your choice is very important for spending your money. Because of above cause our Rheem is giving you a clever way for your property changing and you do not need to have to waste money on searching for any other item anyplace else. So be wise and select a very best choice from our item for your property.
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Eventually, it will not be achievable for you to reject our item qualification which recommended from numerous users around the world. And 2 Ton 14.5 Seer Rheem Air Conditioner - 14AJM24A01 will convince you that it really is very simple for you to adjust your property to create it much more comfortable life in.
Single Stage Air Conditioner (R-410A) Condenser for split systems provides efficient cooling. Does not provide heating. Pair with matching air handler for best results. Contact us for assistance in finding correct air handler if needed.
Feature
- For best efficiency pair with a variable speed air handler and electric heat strip.
- Runs on environmentally friendly R-410 refrigerant (included).
- SEER rating can very depending on the other componants of the system.
Sunday, June 16, 2013
Gas Machines Versus Gas Machines
Generator maintenance must be carried out regularly regardless of what fuel type you utilize. Many people are kids concerning the generator until it breaks. They do not care where they have it. They do not care the way they have it. They merely worry about the conclusion or just how much it is. What that thinking does is shorten their existence style. They do not look beyond then finish of the nose. What's occurring is, first, people don't know very well what their demands are. Next, they don't comprehend the distinction between their demands as well as their wants. Many people believe they are able to make use of a 15 KW generator having a 5 ton ac. Your whole load has to be calculated with a trained professional. Once he installed machines, he'd discover some issues that were occurring with certain machines or certain installations. The installer will normally get a concept of the abilities of individuals machines and also the producers. They tell you they are in keeping with the abilities of the items they are able to handle. But many of producers often overstate the capacity of the generator.
The maker can suggest a dealer in your town for those who have an issue. He'll come to where you are to visit your problem. First, if he's an authorized master electrical installer, he already knows what's essential to perform a set up and whether that installation is true and based on code. Second, he needs to be considered a factory trained repetition he recognizes that generator. They know the way it works around the house. Third, he needs to come to make certain it's not a hazard towards the person or people who reside in the home. I've come across many machines which were installed within vehicle port. It's illegal to achieve that due to deadly carbon monoxide buildup that may occur within vehicle port. Individuals are constantly saying that's OK. It's OK until somebody dies.
Can there be any distinction between gas and gas? There's a positive change. The BTU of warmth of gas allegedly burns warmer. The fuel burns warmer of computer does in gas. So, in gas, the fuel burns rather less or otherwise as hot. Therefore if this does not burn as hot it does not provide you with that engine horsepower that much cla of horsepower that you'll require within the engine.
An 18 KW in gas is equivalent to a 20 KW in gas. Really, gas isn't as effective as gas. Gas is much more effective. For those who have a 20 KW in gas, it'll stay 20 KW. In gas, it drops to 18 KW. It drops 2 KW. Some producers have permitted for your drop although not much. They aren't saying anything about this. They will not discuss it. They aren't allowing it to recognized to the general public or through their sellers or producers. They simply say that it's capable or even the same. It's not exactly the same. The fuel burns in a different way. Gas burns warmer than gas therefore it provides the engine less horsepower therefore it's less KW.
Some engines perform in a different way. Diesel works in a different way from gasoline. Gasoline burns warmer than diesel. However, you have greater performance engines in gasoline than you need to do in diesels. However in diesels you've got a much more torque engines. You've high compression torque engines. But you need to since the only factor capable of burning more diesel is ignition sources or high compression diesel engines.
The fuel you utilize to operate an electrical generator can have an affect on how efficient it runs to your requirements. Employ a professional before ordering and setting up an electrical generator.
AC Infinity Ac best cost
Friday, June 14, 2013
Thursday, June 13, 2013
Wednesday, June 12, 2013
Trane XL 15i installation beginning to end
Tuesday, June 11, 2013
2006 Goodman 3-ton air-conditioner running!
Monday, June 10, 2013
Energy-efficiency And Air conditioning Technology
The following overview offers a quick reference to key considerations with some of the most effective technologies. As with lighting, trial installations are a good idea; so is working with manufacturers and distributors.
Getting the most from HVAC controls
Because a building's performance can be dramatically improved by installing and fully using HVAC controls, it is essential to understand and correctly use those controls. The place to start is with a close look at what is really transpiring in your building, 24 hours a day, seven days a week.
What is happening with each piece of equipment? On holidays? Weekends? As the seasons change, do your operations change? It is important to understand where and how energy is being consumed in order to identify where waste is occurring and where improvements can be implemented. Then it is imperative to ask, "What exactly do I want these controls to do?"
Energy management systems (EMS) are designed to run individual pieces of equipment more efficiently and to permit integration of equipment, enhancing performance of the system. In a typical EMS, sensors monitor parameters such as air and water temperatures, pressures, humidity levels, flow rates, and power consumption. From those performance points, electrical and mechanical equipment run times and setpoints are controlled.
Seven-day scheduling provides hour-to-hour and day-to-day control of HVAC and lighting systems and can account for holidays and seasonal changes. As the name implies, night temperature setback allows for less cooling in summer and less heating in winter during unoccupied hours.
Optimal start/stop enables the entire system to look ahead several hours and, relative to current conditions, make decisions about how to proceed; this allows the system to ramp up slowly, avoiding morning demand spikes or unnecessary run times.
Peak electrical demand can be controlled by sequencing fans and pumps to start up one by one rather than all at once and by shutting off pieces of HVAC equipment for short periods (up to 30 minutes), which should only minimally affect space temperature. Economizers reduce cooling costs by taking advantage of cool outdoor air. Supply-air temperature-reset can prevent excessive reheat and help reduce chiller load.
An EMS can provide an abundance of information about building performance, but someone has to figure out what they want the EMS to do and then give it directions. Calibrating controls, testing and balancing are key to any well-maintained HVAC system, but are especially critical to optimize control efforts.
Variable speed drives and energy-efficient motors
Variable speed drives (VSDs) are nearly always recommended as a reliable and cost-effective upgrade.
VSDs are profitable where equipment is oversized or frequently operates at part-load conditions. Savings of up to 70 percent can be achieved by installing VSDs on fan motors operating at part-load conditions. They may be applied to compressor or pump motors and are generally used in variable air volume (VAV) systems. They are also cost effective in water-side applications. Backward-inclined and airfoiled fans are the best VSD candidates.
Air-handler configurations controlled by variable inlet vanes or outlet dampers squander energy at part-load conditions. Using throttle valves to reduce flow for smaller pumping loads is also inefficient. The efficiency of motors begins to drop off steeply when they run at less than 75 percent of full load; they can consume over twice as much power as the load requires. VSDs operate electronically and continually adjust motor speed to match load.
The power to run the VSD is proportional to the cube of the speed (or flow), which is why this technology is so efficient. If the speed is reduced by just 10 percent, a 27 percent drop in power consumption should result. A VSD pilot study performed by EPA found that VSD retrofits realized an annual average energy savings of 52 percent, an average demand savings of 27 percent and a 2.5-year simple payback.
Perform harmonic, power factor, electric load, and torsional analyses before selecting a VSD. Though harmonic and power factor problems are not common in VSD applications, VSDs should generally be equipped with integral harmonic filters (or a three-phase AC line reactor) and internal power factor correction capacitors (or a single capacitor on the VSDs' main power line). In general, this equipment is not standard and must be specified.
Improved design and better materials enhance the performance of energy-efficient motors, which use 3 to 8 percent less energy than standard motors; units with efficiencies of 95 percent are available.
To achieve maximum savings, the motor must also be properly matched with its load, increasing run time at peak efficiency. Motors operate best when running at 75 to 100 percent of their fully rated load; motors routinely operating below 60 percent of rated capacity are prime candidates for retrofit. For motors whose loads fluctuate, VSDs should also be considered.
Smaller, more efficient motors are integral to a system downsizing stratagem; downsizing a 75 horsepower standard motor to a 40 horsepower energy-efficient model will result in energy savings of 15 percent.
Some energy-efficient motors have less "slip" than standard-efficiency motors, causing energy-efficient motors to run at slightly higher speeds; consider a larger pulley to compensate for the higher speed and to maximize energy savings. Installing a new pulley or adjusting the existing one can also be an alternative to a VSD when the cost for the VSD is prohibitive or the load has been reduced.
Improving fan system performance
A common way to improve the efficiency of the air distribution system is to convert constant air volume (CAV) systems to VAV. One authority on energy issues, E-Source, reports that "typical (VAV) air flow requirements are only about 60 percent of full CAV flow."
VAVs respond to load requirements by varying the volume of the air through a combination of pressure controls and dampers rather than by varying the air's temperature. According to the air pressure, fan power and volume of conditioned air are reduced, thus increasing energy efficiency. Of course, it is crucial to maintain indoor air quality (IAQ) when altering air handling systems.
To maximize savings, VAV components such as VSDs, variable-pitch fan blades, diffusers, mixers, and VAV boxes must be operating properly; careful zoning is also required to achieve VAV optimization.
E-Source recommends considering the following VAV retrofit procedures:
• complete load reduction measures and calculate the maximum and minimum air flow requirements,
• measure existing fan performance; examine duct system for possible improvements,
• stage fans that are in parallel configurations,
• commission the system thoroughly,
• optimize static pressure setpoint and implement reset control, and
• possibly remove return air fans.
Energy-efficient and properly sized motors are also recommended along with careful control strategies. Installing a self-contained, thermally powered device to each diffuser can add greater control to VAV systems by controlling individual spaces, rather than entire zones, and eliminate the need for VAV boxes. Such a device also offers VAV-style capabilities to CAV systems.
VAV retrofit costs and paybacks can vary widely. Installation problems related to fan control, reduced supply air distribution, location of pressure sensors and their reliability, in addition to deficient design, can diminish a VAV retrofit's performance. Because VAV boxes are relatively expensive and one is required for each zone, it is generally not cost effective to partition the space into many zones. Careful zone designation -- according to occupancy, internal loads and solar gain -- will maximize efficiency, increase comfort and reduce reheat.
When reheat cannot be eliminated, consider these steps to minimize it: ensuring thermostat calibration; increasing supply air temperatures during the cooling season; and monitoring reheat year round and possibly employing reheat only during winter months. Where reheat is used primarily to control humidity, a desiccant wheel or a heat pipe might be considered.
Downsizing existing VAV fan systems is a relatively low-cost way to save energy when loads have been reduced or when the air distribution system was oversized to begin with. The following are means to downsize fans or airflow requirements:
• Reduce static pressure setpoint to meet actual temperature and airflow requirements.
• Rightsize motors and upgrade to energy-efficient models; install larger pulleys.
• Replace the existing fan pulley with a larger one; that will reduce the fan's power requirements by reducing its speed.
• Make sure the fan's speed corresponds to the load. Reducing a fan's speed by 20 percent reduces its energy consumption by approximately 50 percent.
There are several ways to determine if VAV fan systems are oversized. If a motor's measured amperage is 25 percent less than its nameplate rating, it is oversized. If a fan's inlet vanes or outlet dampers are closed more than 20 percent, it is oversized. If the static pressure reading is less than the static pressure setpoint when inlets or dampers are open and VAV boxes open 100 percent, as on a hot summer day, the system is oversized. Again, be sure to consider IAQ requirements when downsizing air handling systems.
Chillers and thermal storage
No one wants to replace a perfectly good chiller just because of the CFC phaseout. But once load-reducing efficiency upgrades have been completed, it may actually be profitable to replace an oversized chiller. That's especially true given rising prices and tightening supplies of CFC refrigerants.
Oversized units 10 years or older are good candidates for replacement. A high-efficiency chiller reduces energy costs throughout its lifetime; initial costs are reduced because the replacement chiller is smaller than the old one. Depending on the old unit's efficiency and load, a high-efficiency chiller's energy consumption can be.15 to.30 kW/ton less, decreasing energy consumption by as much as 85 percent if combined with downsizing.
An alternative to replacement is to retrofit chillers to accommodate a new refrigerant and to match reduced loads. That may involve orifice plate replacement, impeller replacement and possibly compressor replacement, depending on the chiller's specifics.
Retrofitting may entail gasket and seal replacement and motor rewinding. Depending on the refrigerant and the way the retrofit is performed, the chiller may lose either efficiency or capacity. To determine whether replacement or retrofit is a better option, consider both initial and life-cycle costs.
Retubing the condenser and evaporator yields sizable energy savings but whether it makes sense, given its high cost, depends on the condition of the chiller. Water-cooled condensers are generally more efficient than air-cooled units. Because condenser water flows through an open loop, it is susceptible to fouling. Scale build-up will inhibit heat transfer efficiency; maintenance is therefore required to keep the surfaces clean.
Absorption chillers are an alternative to centrifugal models. Absorption chillers cost up to 0 per ton more than vapor compression chillers like centrifugal units, but can be profitable in areas of high electrical demand charges or where steam or gas is available, depending on the local utility rate structures. Using a combination of the two chiller types can reduce electrical demand charges.
Thermal energy storage (TES) uses conventional chiller equipment to produce conditioned water or ice (or occasionally another phase-change material) in off-peak periods. Water is withdrawn from storage during the day or at peak hours and circulated through the cooling system.
TES systems can be incorporated into new and existing systems and can provide partial load leveling or full load shifting. TES helps decrease operating and maintenance costs; in some cases, a smaller chiller can be specified. Some systems provide lower supply air and water temperatures, so air and water flow requirements can be cut.
Water-side improvements
Fill material, size and fan configurations affect cooling tower efficiency. Cellular fill (aka film packing) increases efficiency over other fill types. Oversizing the tower to allow for closer approach to ambient wetbulb temperature can improve its efficiency. Generously sizing the tower and increasing its share of the chiller load can make economic sense because a cooling tower's initial cost and energy use per ton are less than a chiller's.
At part-load conditions, applying a VSD to the fan (or pump) will improve the tower's efficiency. Systems with VSDs and several fans are more efficient when all tower cells are operating at reduced speed as opposed to one or two cells at full speed.
Because cooling towers contain large heat exchange surfaces, fouling -- scale or slime build-up -- can be a problem. The efficiency of improperly treated systems can be improved with effective water treatment. High-efficiency towers are available; induced-draft types are more popular and efficient than forced-draft towers. Performance can also be improved by increasing cooling surface area.
In traditional pumping systems, flow is generally constant volume; a throttle valve reduces flow at part-load conditions, inhibiting efficiency.
Installing VSDs on secondary pumps in variable flow systems, rightsizing pumps and motors to meet load requirements, and upgrading single loop systems to primary/secondary loop configurations can increase the performance and reliability of pumping systems. In upgrading chilled water pumps, it is important to meet maximum and minimum flow rates through the chiller.
Other cooling options
Desiccants are dehumidification materials which can be integrated into HVAC systems to reduce cooling loads and increase chiller efficiency while improving indoor air quality and comfort. Formerly found only in niche and industrial applications, desiccant cooling is extending throughout commercial markets.
Desiccants make sense when the cost to regenerate them is low compared to the cost to dehumidify below dewpoint and can reduce HVAC energy and peak demand by more than 50 percent in some cases.
Evaporative coolers provide one of the most economical and efficient means of cooling, using up to 75 percent less energy than vapor-compression systems. Though initial cost is typically higher, paybacks for evaporative coolers range between six months and five years. Though evaporative coolers are particularly prevalent in the arid West and Southwest, they can service most U.S. climates. E-Source states that, in combination with evaporative cooling, desiccant cooling can eliminate refrigerative air conditioning in many climates.
Hybrid systems that integrate evaporative cooling with conventional HVAC technologies offer additional opportunities. To improve performance consider lower air velocity; better fill materials; higher fan, pump and motor efficiencies, including VSDs; better belts or direct drive; improved housing; improved controls; and duct sealing. Proper maintenance is key to energy-efficiency.
Packaged air-conditioning units are typically found in buildings or building zones where the cooling load is less than 75 tons. Running these units at part load can severely reduce efficiency. They are generally not as efficient as chiller systems but can be upgraded and rightsized when replaced. Existing systems can be improved by using higher efficiency compressors, larger condensers and evaporators, and VSDs, though life expectancies of 10 to 12 years for these technologies may mean that retrofits are not cost-effective.
Heat pumps are among the most energy-efficient heating and cooling technologies available today. Low operating costs, increased reliability and long life expectancies improve their viability. They function best in moderate climates and proper sizing is critical.
Multi-unit configurations can service larger loads and provide zoning; large, modernized central units offering capacities of up to 1000 horsepower or 750 kilowatts are gaining popularity. Air-to-air type heat pumps are the most common because of low up-front costs; ground supply heat pumps are the most efficient but tend to have higher initial costs.
Boiler upgrades
Especially in colder climates, improved boiler performance -- with improved fuel and airflow controls over a range of load conditions and increased heat transfer surface areas -- can contribute substantially to energy savings. Smaller units arranged in modular systems increase efficiency up to 85 percent while small units replacing those with open-loop condensing systems shoot combustion efficiency up to 95 percent.
Boiler retrofits, combined with improved maintenance measures, can also increase efficiency -- up to 90 percent. New burners, baffle inserts, combustion controls, warm-weather controls, economizers, blowdown heat recovery and condensate return conversions provide increased efficiency opportunities. A smaller "summer" boiler might be a good option when a boiler is required year round though at reduced capacities in warmer conditions. The much smaller summer boiler is sized for reduced loads; the main boiler is shut down.
HVAC upgrades can provide tremendous economic benefits, improve occupant comfort and system reliability, and reduce operating costs. But to maximize benefits and minimize capital investment, load-reducing measures, such as lighting upgrades, should precede HVAC system upgrades.
Sunday, June 9, 2013
Saturday, June 8, 2013
RHEEM RANL-030JAZ 2-1/2 TON 13 SEER SPLIT SYSTEM AIR CONDITIONER R-410A by Rheem
By now you will familiar with shopping on the net. There are countless marketing all over the web for the world wide web shoppers around the world. Rheem is introducing you to RHEEM RANL-030JAZ 2-1/2 TON 13 SEER SPLIT SYSTEM AIR CONDITIONER R-410A one particular of our clever merchandises. And we're giving you one particular much more great selection for your internet shopping. Certainly this item will impress you and everybody.
You Save : Check Cheap Price
Check Offer listing
Official production launched the RHEEM RANL-030JAZ 2-1/2 TON 13 SEER SPLIT SYSTEM AIR CONDITIONER R-410A newest item for your house with the most strong technologies. This can be the excellence item that is come from our knowledge and skill. A variety of kinds of supplies that specialize inside the creating of this item came from the very best researched. We created this item to fit in each single house. And This can be going to be the greatest gift that you simply brought to your house.
The numbers of worldwide satisfy customers are rising quickly after this amazing items came out on the net marketplace. It's a qualify proof that this item is positive exciting. Base on its finest top quality and such as a fair price tag. If compare to one more comparable item that selling on the net around the world in the moment. We confidently advocate you to be one particular of our customers by get RHEEM RANL-030JAZ 2-1/2 TON 13 SEER SPLIT SYSTEM AIR CONDITIONER R-410A for oneself. So Rheem will be a part to produce your lovely house.
TON:2.5, SEER:13, VOLT:208-230, HERTZ:60, PHASE:1, REFRIGERANT:R-410A, SWEAT CONNECTIONS:3/8" x 7/8", Being sold as new and unused with no warranty or guarantee.
Feature
- For best efficiency pair with a variable speed air handler and electric heat strip.
- Runs on environmentally friendly R-410 refrigerant (included).
- SEER rating can very depending on the other componants of the system.
Friday, June 7, 2013
Homemade Solar Power Panels - Where You Can Buy Solar Panels
If you have lately made the decision that you would like to construct a homemade cell, try not to know where you can buy solar panels continue reading. The correct answer is a typical problem that people ourselves had whenever we began searching for solar panels for the panel.
I'd initially began doing a bit of searches to find websites that offered solar panels. Although I discovered a number of the costs these were asking were quite steep! It might have require me to pay more to purchase individual cells of computer might have cost to purchase a completely new panel.
Since I Have wasn't going anywhere with my online searches I made the decision to in the manufacturer and find out basically could buy solar panels from them. They stated I possibly could, but each order would need to attend least 10,000. I had been pretty frustrated and so i requested them when they understood where you'll get cheap solar panels. I described what I used to be doing plus they offered me some golden nuggets of knowledge.
I used to be doing my search the wrong manner. Cells that I used to be searching at were what is known as Grade "A" cells. They described these cells are what's utilized in solar power panels because you will find simply no defects inside them however, you will find also Grade "B" cells which perform exactly like their Grade "A" alternatives but can be purchased for a small fraction of the price.
With a bit more information I refined my search and began approaching with many people who have been selling them at roughly /watt. I figured I possibly could most likely have them cheaper on my small favorite spot for alternative energy parts... eBay.
A fast explore eBay switched up a lot of people selling solar panels. The good thing was these were selling them for less than .50/watt (which has now dropped to under /watt). I had been excited to possess found a great affordable supply of cells to make use of in solar power panels.
If you have began your way to building the first homemade cell, try not to know where you can buy solar panels I suggest you take a look at eBay. They have got the very best prices I have seen and you will find always bargains available.
Thursday, June 6, 2013
Wednesday, June 5, 2013
20 TON Air Condition UNIT!
Tuesday, June 4, 2013
PIONEER Dual Split System Ductless Multi Zone Air Conditioner / Heat Pump with two indoor units (Indoor units available for 9,000 or 12,000 BTU capacities) by Pioneer
By now you will familiar with shopping online. You'll find a lot of advertising all more than the net for the net shoppers around the world. Pioneer is introducing you to PIONEER Dual Split System Ductless Multi Zone Air Conditioner / Heat Pump with two indoor units (Indoor units available for 9,000 or 12,000 BTU capacities) 1 of our clever merchandises. And we're giving you 1 a lot more good choice for your world wide web shopping. Surely this product will impress you and every person.
Check Offer listing
Official production launched the PIONEER Dual Split System Ductless Multi Zone Air Conditioner / Heat Pump with two indoor units (Indoor units available for 9,000 or 12,000 BTU capacities) newest item for your home with the most powerful technologies. This is the excellence product which is come from our knowledge and skill. Numerous forms of supplies that specialize within the producing of this item came from the top researched. We created this item to fit in every single single home. And This is going to become the greatest gift which you brought to your home.
The numbers of worldwide satisfy customers are rising rapidly after this great items came out online industry. It's a qualify proof that this item is positive interesting. Base on its finest top quality and which includes a fair price. If compare to another comparable product that selling online around the world at the moment. We confidently suggest you to become 1 of our customers by get PIONEER Dual Split System Ductless Multi Zone Air Conditioner / Heat Pump with two indoor units (Indoor units available for 9,000 or 12,000 BTU capacities) for oneself. So Pioneer will be a part to make your lovely home.
For full technical specks and other related information, please refer to www.highseer.com.Dual zone ductless split system air conditioner, heat pump. Controls two different areas totally independent of each other. Ultra energy efficient system. Great energy savings. Each indoor unit can be set at different temperatures and to run or stop automatically at different times. System comes complete with two sets of installation kits.Indoor units are available in 2 different capacities: 9,000 and 12,000 BTU/h.. Users can order any two they need in any combination, such as 9+9, 9+12, 12+12. System provides cooling, heating, dehumidification and ventilation functions. Attractive indoor sections with remote controllers and automatic swing louvers. Washable permanent air filters, automatic programmable timer, auto switchover mode, variable speed fan motors also included. Super quiet operation with powerful cooling or heating effect. Great energy savings. Easy installation with small foot print for space saving. Eliminates the requirement for complex and expensive duct work.Top quality, reliability and performance assured by Pioneer brand quality image. Please call our expert engineers at (800) 243-0340 for any questions or recommendations. We are available to answer your calls, Monday through Friday from 9:00 AM to 5: 00 PM E.S.T.
Feature
- Operates two indoor units separately or simultaneously, independent of each other
- Either zone can be set as ON or OFF and desired temperatures can be set independently
- Digitally controlled variable speed compressor adjusts its capacity to meet the demand load
- Total comfort, superior efficiency, latest INVERTER technology. 16 SEER efficiency rating.
- Attractive appearance, ultra quiet operation, wireless remote controller, automatic swing louvers. ETL-US Approved.
Monday, June 3, 2013
Air flow (CFM) Resolution of an aura-Source Electric (ASHP)
If you're a Air conditioning/R specialist, it is best to check any air-source electric (ASHP) for correct air flow over the coils when troubleshooting or throughout preventive maintenance.
Correct air flow is of crucial importance to the whole process of any ASHP. Area of the warmth transfer rate is dependent upon the air flow over the indoor and outside coils. When the air flow is wrong, then your warmth transfer rates are incorrect and may drastically modify the equipment's performance.
Accurate air flow measurement is important in troubleshooting any electric system. Actually, no refrigeration test applies when the ventilation volume isn't correct!
ASHP producers stick to the tenants from the Ac, Heating, and Refrigeration Institute (AHRI) with a "Test Stand Value" needing the measured air volume rate, when divided through the measured indoor air-side total capacity, mustn't exceed 37.5 SCFM per 1,000 Btu/h [this can be a more 450 cubic ft each minute (CFM) of air flow across an inside coil per 12,000 Btu/h of capacity]. Most producers make use of an acceptable selection of 350 to 450 CFM per 12,000 Btu/h of capacity, and also over 750 CFM per 12,000 Btu/h of capacity across outside coils (most outside fans move roughly 1,000 CFM, as much as 1,500 CFM, per 12,000 Btu/h of capacity). Within the Air conditioning/R industry, 12,000 Btu/h of capacity is known to like a "Ton" of refrigeration. Typically, most producers concentrate on around 400 CFM per "Ton" when rating their equipment.
Before carrying out any air flow determination, always make certain that registers and grilles are open filters and coils are clean, which blowers and fans are running correctly delivering air flow over the indoor coil and also the outside coil.
You will find various techniques which help determine the air flow amount across an inside coil. The indoor coil is usually checked because the air flow must mix this coil to permit the refrigerant either to absorb (ASHP cooling) or reject (ASHP heating) the warmth towards the appropriate "sink." In summer time, the "sink" may be the outdoors, and throughout winter, the "sink" is inside.
Probably the most broadly utilized techniques when checking ASHP air flow continues to be the "temperature rise" method over the auxiliary or emergency (support) heater(s). This process could be carried out no matter outside ambient temperature.
When carrying out this test, you should never forget that typically, most air source warmth pumps operate with similar air flow no matter mode of operation. In heating or cooling, or throughout emergency warmth or defrost, the electric simply provides the "same" air flow per ton over the indoor coil. The only real change can be done throughout the cooling mode, as water condensing around the indoor coil increases resistance slightly, lowering air flow amounts somewhat. Obviously, you may also change blower speeds and CFM amounts for either heating or cooling on some ASHPs.
To check on air flow (CFM) of the ASHP, you need to perform several dimensions and employ some math. The most popular formula for calculating CFM is:
Emergency Warmth Output(Btu/h)
CFM= -----------------------------
Temperature Rise x 1.08
You have to discover the CFM per Ton traveling with the indoor coil throughout heating or cooling modes. To do this, you need to put the system within the emergency warmth mode and put thermometers within the supply air and return air pathways as near to the air handler as you possibly can without struggling with the radiant effect from the heating units.
In the earlier formula, CFM equals the emergency warmth output in Btu/h. Since you'll be checking heating units, you'll be calculating electrical data. When finding Btu/h creation of the heater, you'll appraise the current and also the amperage in the disconnect for that heater(s) and record the. This can require utilization of a voltmeter as well as an ammeter.
Supply current increased by amperage equals wattage. Wattage increased by 3.413 (Btus per Watt) equals Btu/h and you'll then possess the value for that CFM formula numerator.
Within the CFM formula denominator, temperature rise originates from the main difference within the return air and offer air temperature following the heater(s) has/have stable along with a difference has happened. This difference (sometimes known as TR or &DeltaT) will be increased with a constant of just one.08 to obtain the modified temperature difference. Always seriously consider temperature change when locating the improvement in temperature.
This modified temperature difference may be the denominator for that CFM formula.
Once the formula is finished using the necessary inputs, the reply is the entire shipped air flow (CFM) traveling over the heater in emergency warmth mode. After this you simply divide this value through the tonnage from the installed outside coil to obtain the CFM per ton. The cooling air flow (CFM) is going to be close to this value or slightly lower because of elevated pressure drop from water condensing around the indoor coil throughout cooling. The ASHP compressor heating air flow (CFM) per ton is a similar value to that particular found from emergency warmth. The CFM per ton ought to be within the AHRI range to become acceptable.
If inaccurate ventilation (CFM volume) over the indoor coil (evaporator in cooling, condenser in heating) is decided, this case should be remedied just before further research into the refrigeration cycle.
Identifying ASHP indoor coil air flow (CFM) throughout emergency warmth example:
Two (2) Ton Unit
240 Volts at disconnect
20 Amplifiers at disconnect
Return air = 70ºF
Supply air = 88ºF
CFM = (240 x 20 x 3.413) ÷ (1.08 x 18ºF) = 843
843 CFM ÷ 2 Tons = 421.5 CFM per Ton
(This amount is suitable per AHRI)
It's also wise to look into the outside coil for minimal clearance per manufacturer round the unit from bushes, trees, and decks to permit proper warmth rejection within the summer time and absorption during the cold months. You may also determine the air flow over the outside coil using the product specifications in the manufacturer as proven below. Most ASHP outside coils will typically deliver near to this amount when the coil is installed properly and clear.
Phillip A. Rains
Sunday, June 2, 2013
2004 2.5-Ton Carrier Air-Conditioner
Saturday, June 1, 2013
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