Question about Heating & Cooling

Open Question

EER and COP values for Fuji Denki unit

I am a commercial energy assessor and I have a heating/cooling system made by Fuji Denki. I need to find the EER and COP values for the system, can you help please? The model numbers are ROC-257R (outdoor) and RC257R (indoor). Many thanks

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
carldc3
  • 82 Answers

SOURCE: Match up Carrier equipment

carrier did sell some systems with R407c as a quick fix to gov regulations for about 2 yrs. R407c is a blend . and is treated like R410a except R407c pressures are more simular to R22. being that the pressures run the same the system should work with out changing any parts that being said if the evaporator has been used for R22 the oil residue wiil give you problems ifit is a new unit you would be ok.

Posted on Jan 10, 2009

Ad
  • 1218 Answers

SOURCE: indoor unit does not function -outdoor unit works

These units have circuit boards inside that have lights on them. These lights come on and tell you what the problem is. I have had 4 units do the same thing that yours is doing. The result has been that the compressor has gone bad. You have to get access to the control board to see the lights. There will either be one inside the inside unit or one inside the outside unit depending on exact manufacturer date.
Good luck and hope this helps.

Posted on Aug 23, 2009

james3751
  • 614 Answers

SOURCE: I want to know the energy efficiency of my Air

Your unit is 13 seer. Rus

Posted on Mar 22, 2010

  • 81 Answers

SOURCE: U4 System transmission between indoor and outdoor units Daikin

Sounds like an interconnecting wiring error. Check wiring connection i.e. wires are connected in right order 1 to1 2 to 2 etc. from indoor terminal board to outdoor terminal board. Also check for slack or loose connections.
Hope this helps I take the time to answer your question so please rate me

Posted on Jun 28, 2010

  • 1 Answer

SOURCE: U4 System transmission between indoor and outdoor units Daikin

Have you found the problem with ya A/C yet PD with the U4 code, if so what was it.

Posted on Jul 27, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is the corrective action for error code 46?


Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

Jun 23, 2015 | LG Art Cool LA240HSV 22,000 BTU SingZone...

Tip

Air Conditioner SEER Seasonal Energy Efficiency Ratio


Energy consumption for home air conditioning accounts for almost 5% of all the electricity produced in the USA. Energy Policy Act mandates minimum energy efficiency standards for commercial buildings, using research and standards developed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers. Energy Star qualified central air conditioners have a higher seasonal efficiency rating (SEER) than standard models, which makes them about 14% more efficient than standard models. Energy efficiency specialists with certified training on retrofits and energy savings on both residential and light commercial units may enable you to save up to 50 percent on your air conditioning bills with the use of a high efficiency energy system. Substantial energy savings can be obtained from more efficient systems.

SEER (Seasonal Energy Efficiency Ratio) is related to the Energy Efficiency Ratio (EER), which is the ratio of output cooling in Btu/Hr and the input power in watts W at a given operating point and also to the coefficient of performance (COP) commonly used in thermodynamics. SEER rating more accurately reflects overall system efficiency on a seasonal basis and EER reflects the system’s energy efficiency at peak day operations.

The SEER rating is the Btu of cooling output during a typical cooling-season divided by the total electric energy input in watt-hours during the same period. SEER is related to the Energy Efficiency Ratio (EER), which is the ratio of output cooling in Btu/Hr and the input power in watts W at a given operating point and also to the coefficient of performance (COP) commonly used in thermodynamics. SEER rating more accurately reflects overall system efficiency on a seasonal basis and EER reflects the system’s energy efficiency at peak day operations. The higher the SEER number, the greater the efficiency of your unit. Therefore you will realize greater energy savings. The higher efficiency your product, the lower your long-term energy costs will be. Both central AC and air source heat pumps are rated according to seasonal energy efficiency ratio (SEER).

Before you consider upgrading your cooling equipment, the cheapest way to save money and energy from cooling is to reduce the need for mechanical air conditioning in the first place. Ask your contractor about a variable speed air handler, which will improve comfort and efficiency and allow continuous air filtering at minimum energy cost. Also, because ducts are often responsible for a lot of wasted energy, make sure you hire a contractor who knows about high-efficiency installations. If your central air conditioning unit is more than 12 years old, replacing it with an Energy Star qualified model could cut your cooling costs by 30 percent.


on Dec 14, 2009 | Heating & Cooling

Tip

Solar Air Heating - You Can Cut Utility Costs and Save Money


Solar energy is becoming very quickly recognized as one of the best alternatives to fossil fuels It is an abundant and renewable natural resource. It can be used to save energy in residential, commercial, and industrial settings. Solar technologies will use the sun's energy to provide heat, hot water, light, electricity, and cooling, for homes, businesses, and industry.

Many major advancements have been made in the solar technology fields over the recent years. Solar air heating is becoming more attractive than ever before now that it is becoming lower in cost and more efficient. Solar energy is easily the cleanest and most inexhaustible of any of the known energy sources. The many variations in energy prices have fueled interest in alternative fuels such as solar energy. Demand for solar energy has been increasing exponentially as heating, cooling and many other energy costs continue to skyrocket.

Solar air heating and solar water heating are two examples of solar thermal technologies which produce heat, but not electricity. Solar air heat is best suited for installation in new construction and existing houses. Solar panels for any type of heating should be placed on a south-facing pitched roof, free of shade. The angle should be between 20 and 50 degrees. They may also be mounted on an angled frame on the ground or on a flat roof. Solar air collectors (the devices that heat up the air using solar energy) can directly heat individual rooms. They also can potentially pre-heat the air passing into a heat recovery ventilator or the air of an air-source heat pump. Solar heating panels can be one of the most cost effective ways to reduce your utility bills. This will make a positive contribution towards a better environment. Solar air heating systems often use large bins filled with rocks that store heat (although this method is becoming rare due to problems associated with controlling moisture and mold growth in the rock).

Energy Policy Act has implemented a 30% tax credit for consumers who chose to install solar water heating systems. State and local government programs are now being put in place to encourage the use of solar energy. Cash incentives are available for those that integrate solar energy technology as an alternative energy source. The Department of Energy (DOE) is working to design even more cost-effective solar heating systems and to improve the longevity of the materials used in those systems. Other incentive programs now include offering homeowners tax credits for solar panel installations and for solar heating systems. With solar power you will save money, increase your property value, help protect the environment and help to create a more secure America by reducing our dependence on foreign energy fuel sources.

A great solar heating system will save energy, reduce utility costs, and produce clean energy.

on Dec 12, 2009 | Heating & Cooling

1 Answer

I have a Hampton Bay AC. It is 18,000 BTU. It is 230 volts. The EER is 9.7 and it is 8.3 to 9 amps. When I use energy mode on the AC it blows warm air. What gives? Just cool mode and it blows cool.


Hi Paul,
  • Energy Saver Mode most likely shutdown the compressor and Fan Only will be running to recirculate Ambient air into the room.
  • Make sure there is no Port or Vent that is open on your unit and would let hot air from outside be mixed in with the ambient air especially if it is hot outside.
  • Also refer to the troubleshooting section of your owner's manual.
Good Luck,
JP

Jun 21, 2015 | Hampton Bay Heating & Cooling

1 Answer

I need to know what the voltage for this unit


Model: REG-123H
  • UPC: 855326002968
  • Product Type: 12,000 BTU Window Air Conditioner & Heater
  • Product Dimensions: L: 24.00" x W: 24.00" x H: 16.00"
  • Product Weight: 88.00 lbs.
  • Product Color: White
  • Application: Used to cool individual rooms
  • Type: Window Air Conditioner
  • Warranty: 1 year; 5 years sealed system
  • Coverage Area: 550 square feet
  • Voltage: 230 volts
  • Heater: Yes
  • Air Flow: 266 CFM
  • Amps: 5.5 amps
  • Heating Capacity: 11000 BTUs
  • Frequency: 60 Hz
  • Cooling Capacity: 12000 BTUs
  • Dehumidifying Capacity: 3.6 pints
  • EER: 9.8
  • Heat Pump: No
  • Number of Fan Speeds: 3
  • Programmable Timer: Yes
  • Timer Length: 24 hour
  • Refrigerant Type: R-410A
  • Air Conditioner Type: Cool/Heat
  • Energy Star Rated: No
  • Air Filter: Yes
  • Built-In Air Purification System: No
  • Display Type: Digital
  • Remote Control: Yes
  • Adjustable Louvers: Yes
  • Adjustable Side Panels: Yes
  • Compatible Window Size: Min. Window
  • May 31, 2014 | Comfort-Aire RED-123 Air Conditioner

    2 Answers

    Need to know the tonnage ofCarrier s/s Model #38ARZ008, ser # 1404G20031


    Brand: CARRIER Manufacturer: CARRIER CORP SYRACUSE Model Number: 38ARZ008(5/6)0 Condenser Type: air-cooled Coil Model Number: 40RM-008--B5/6GC System Configuration: Split System Air Conditioner Energy Efficiency: 10.6 EER Cooling Capacity: 90,000 BTUs / hour ARI Type Code: RCU-A-CB Electrical Service: Triple-phase Electrical Input: 8,490 watts per hour Voltage: 230 and 208 and 460

    12000 btu's per Ton, equals to 7.5 Tons.

    Sep 29, 2010 | Carrier 38CKC042 Air Conditioner

    1 Answer

    I am looking for how many tons of cooling my goodman condensor provides


    • Here's the data you requested:
    • Goodman CKL42AR42 Split System Air Conditioner
    • Type: Split System
    • Cooling Capacity: 40000 BTU/hr (3.3 tons)
    • Energy Efficiency Rating: 9 EER

    Mar 19, 2010 | Goodman CKL42AR42 Air Conditioner

    1 Answer

    WHAT DOES 12000BTUh MEAN OR REPRESENT IN AIRCONDIONING terMS? eg 12000 or 10000


    Hi,
    I found this explanation which I certainly couldn't improve on.

    The British thermal unit (BTU or Btu) is a traditional unit of energy. It is approximately the amount of energy needed to heat one pound of water one degree Fahrenheit. One Btu is equal to about 1.06 kilojoules. It is used in the power, steam generation, heating and air conditioning industries. In scientific contexts the BTU has largely been replaced by the SI unit of energy, the joule (J), though it may be used as a measure of agricultural energy production (BTU/kg). It is still used 'unofficially' in metric English-speaking countries (such as Canada, the United Kingdom), and remains the standard unit of classification for air conditioning units manufactured and sold in many non-English-speaking metric countries.
    In North America, the term "BTU" is used to describe the heat value (energy content) of fuels, and also to describe the power of heating and cooling systems, such as furnaces, stoves, barbecue grills, and air conditioners. When used as a unit of power, BTU 'per hour' (BTU/h) is understood, though this is often abbreviated to just "BTU".

    I located it at this site all credit for this info is:
    http://en.wikipedia.org/wiki/British_thermal_unit

    Hope this is what you need,
    RSMITH972278
    P.S. PLEASE RATE ME !

    Oct 18, 2009 | Heating & Cooling

    1 Answer

    BTU's on Emerson Quiet Kool A/C


    AC Type dtrquestion.gif Thru-Wall/Window Cooling Capacity dtrquestion.gif 10000 BTU/hr Energy Efficiency Rating dtrquestion.gif 9 EER Fan Speeds (Cooling) 3

    May 27, 2009 | Emerson Quiet Kool 10GV13 Air Conditioner

    1 Answer

    How can we caculate the energy needed by an air conditioner?


    It depends on the (EER) Energy Efficiency Ratio,which is capacity divided by watts.
    Example 35000 btus / 2500 watts = 14 EER
    If you know the capacity,btus and EER you can calculate the watts, capacity / EER
    Example 35000 btus / 14 EER = 2500 watts.

    EER is determine by testing the air conditioner at Department of Energy Guidelines, which are
    80° drybulb 67° wetbulb indoor and 95° and 82° drybulb outdoor.

    May 14, 2009 | LG LS-K2430HL Heat Cool Mini Split Air...

    Not finding what you are looking for?
    Heating & Cooling Logo

    Related Topics:

    234 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Heating & Cooling Experts

    Paul Carew

    Level 3 Expert

    2900 Answers

    Dan Webster
    Dan Webster

    Level 3 Expert

    8220 Answers

    Donni Steen

    Level 3 Expert

    659 Answers

    Are you a Heating and Cooling Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...