Types of Ductless AC

10/18/2012 //

Wall-mount ductless systems

Air Conditioner & Heat Pumps Indoor Units that mount flush to the wall of the room. Sleek, styling design with whisper quiet operation. Usually wall-mount ductless indoor units mounted on outside wall of the room for easier connection to outdoor unit – only a 3” hole needed to pass refrigerant tubing and communication wiring that connect the indoor ductless unit with quiet and efficient outdoor unit, in many cases located right outside of the wall. The wall mount indoor unit often could be installed on inside partition, but this complicates the installation and future maintenance. When a ductless wallmount unit is installed in such manner, the condensate drain, as well refrigeration tubing and wires could be passed inside of the partition down to the space below. If the installation should be done on first floor of the house, then the piping and wiring can be passed to the basement and then outside to outdoor unit. This also allows condensate drain to be wasted in the basement slop-sink or any other suitable drain. More info

Ceiling recessed (cassette) ductless air conditioners

These ductless units provide 4-Way airflow for even distribution, whisper quiet operation and optional fresh air intake. This is more expensive option than wall-mount units. The ceiling recessed units must be installed in the ceiling, only grille with intake filter and four discharge louvers are visible. This type is best for hotels, conference rooms, and medical offices. An additional branch duct could be added to cool or heat adjacent room. More info

Ceiling suspended ductless mini split units

Equipped with a highly efficient, multi-blade centrifugal fan that generates a powerful yet gentle airflow throughout the room. This type of ductless mini-split unit is best for classrooms, conference halls, and large areas with high heat and cool load. Equipped for easy fresh air connection, comes with wireless or wired remote control. More info

Concealed or ducted indoor units (another version of ductless indoor unit)

Useful for places which need extensive air conditioning, including conference halls, showrooms, and restaurants. Since the unit and connecting ductwork is above the ceiling or concealed within walls, this type of unit is hidden from eye. Installation of these units must take in consideration future maintenance and service. The ductwork must be carefully calculated due to low static pressure design of this type units. More info

For more information call us 718 888-8448 or stop by our stores in New York (Maspeth, NY, part of Queens) or New Jersey (Bergenfield, NJ, part of Bergen County)

Tags Ductless air conditioners, Ductless heat pumps

Categories Ductless air

Mitsubishi City-Multi R2 and Y-Series VRF Systems

07/05/2012 //

VRF HVAC, an air-conditioning system that constantly grow its popularity due to its ability of meeting a wide range of applications.

The main function of all air-conditioning systems is to supply thermal comfort for building occupants. There is a extensive choice of system types offered, staring with the basic wall-mount unit through to the very latest VRF (variable refrigerant flow) apparatuses. Deciding which system best suits the application depends on several factors. For example, in a modern, design-conscious office the aesthetic requirements of the customer may demonstrate of greater significance than the number of control options they offer. While a customer looking for the best life-cycle cost will require balancing capital cost with long-term operating costs, efficiency and predicted VRF systems provide cooling and heatingusing refrigerant R410A as the working fluid. There are two basic types of VRF system — cooling/heating-only (Mitsubishi City-Multi Y-Series) and energy-recovery (Mitsubishi City-Multi R2-Series).

The Mitsubishi City-Multi Y-Series, the cooling and heating system can provide just cooling or heating to the space, but not both at the same time.

The Mitsubishi City-Multi R2-Series, the energy-recovery system, can provide both cooling and heating simultaneously, to different parts of the building. This option has the potential to deliver maximum energy savings. Additionally, a heat-recovery system can transfer the heat extracted from those spaces requiring cooling to areas demanding heating, resulting in extremely high primary-energy ratios and low operating costs.

Outdoor units are available with different cooling and heating capacities to suit the application. A host of controller options is available, from simple wireless controllers to powerful PC software packages. Finally, all the units are linked using transmission cable, providing a fully networked air-conditioning system.

Basic principle of operation:

When in the cooling mode, indoor units are supplied with liquid refrigerant. The amount of refrigerant flowing through the unit is controlled via an electronic expansion valve located inside the unit. When the refrigerant enters the coil it undergoes a phase change (evaporation) that extracts heat from the space, thereby cooling the room. The heat extracted from the space is exhausted to ambient air.

When in the heating mode, indoor units are supplied with hot gas refrigerant. Again, the amount of hot gas flowing through the unit is controlled via the same electronic expansion valve. As with the liquid refrigerant, the hot gas undergoes a phase change (condensation), which releases heat energy into the space.

Tags conscious office, energy recovery system, heat recovery system, maximum energy savings

Categories Uncategorized

Sanyo Ductless Mini Split Air Conditioners

10/09/2011 //

Sanyo ductless mini split air conditioners and heat pumps offer the greatest flexibility in satisfying your cooling and heating requirements. They utilize environmentally friendly R-410a refrigerant and Inverter technology. Sanyo ductless air conditioner or heat pump automatically adjusts its performance to meet the varying needs of the space while maintaining the preferred temperature. This leads to higher efficiency, lower energy consumption and better comfort.

Ductless Installation

The installation process is fast, efficient and neat. The indoor unit (evaporator) is mounted inside the room, enclosed in a handsome space saving cabinet. It is connected to the outdoor unit (condenser) with refrigerant lines and wiring through a 3-1/2″ opening in the wall. No ductwork is required. There is no need to use up window space or cut large openings in existing walls, which could weaken the integrity of your structure, and even create safety risks. Since the compressor is situated in the outdoor unit (i.e. outside), the operating noise is virtually eliminated from the indoor. The indoor unit has been exceptionally designed to provide efficient, powerful cooling (or heating) at the lowest noise levels in the industry while delivering comfort throughout the room.

Features

Apatite Filter
DC Inverter Compressor
Negative Ion Generator
Microprocessor-Controlled Operation
Wireless Remote Control
Self-Diagnosing Function
Dry Mode
3 Fan Speeds and Automatic Fan Operation
Air Sweep Control
Louver Control Night Setback Mode for Cooling and Heating
24-Hour Programmable Clock with ON/OFF Program Timer
1-Hour OFF Timer
Anti-Mold Filter
Automatic Restart Function after Power Failure
Low-Ambient Operation
Electric Expansion Valve
R410A Refrigerant
Quiet Mode
Multi-Zone Systems

Run Multiple Rooms

The multi-room ductless system allows a single outdoor unit to be connected to 4 indoor units. Sanyo offers nine Flexi-Multi Outdoor Units of 19,000 Btu/h, 24,000 Btu/h and 31,000 Btu/h capacity (cooling only, heat pump and low ambient models) that can fit more than 200 different combinations of indoor units. The multi-room design also solves the problem of limited installation space and does not clutter the exterior of the building.

Tags Ductless air conditioners, Ductless heat pumps

Categories Ductless air

Mitsubishi Ductless Mini Split Systems

10/09/2011 //

Mitsubishi Electric’ ductless mini split systems employ highly developed technology to provide you with a level of comfort control that extends further than just the temperature within your home or office. With more ENERGY STAR® certified units on the market than ever before, an allergen filtration capability to clean the air, and indoor units that function at sound levels quieter than a human whisper, the Mitsubishi Electric’ systems are the right choice for your home comfort needs.

Mitsubishi Electric’ cooling and heating ductless systems (also known as Mr. Slim) have improved people’s lives for the last 30 years, by raising their comfort level, saving energy, and promoting environmental responsibility. Whatever your situation – renovation, new construction, a hot or cold spot, or an addition to your existing home, Mitsubishi Electric has a comfort solution for you.

Deluxe Comfort

It’s possible to transform any room in your home or your entire home into an retreat of comfort; cool and dry in the summer and warm and cozy in the winter. Mitsubishi ductless mini split systems give you exact temperature control even in spaces you thought would be impossible to fix. Thanks to advanced INVERTER-driven compressor technology and smart, easy-to-use controls, you can achieve consistent temperatures throughout the room as you are saving energy all year long, year after year.

Features

Freedom to control your comfort in each and every room. Simply set the temperature for each room with an easy-to-use controller
INVERTER-driven compressor technology in the outdoor unit delivers precise indoor comfort in each conditioned room with consistent temperature and total control
Indoor systems operate as low as 19dB; quieter than a human whisper
I-see™ Sensor detects real-time temperature disparities within a room and automatically adjusts airflow to compensate and perfect comfort
H2i® hyper-heating INVERTER technology provides tremendous heating capabilities when outside ambient temperatures are -13° F

Run Multiple Rooms

With Mitsubishi mini split, you can actively condition the rooms you live in; the other rooms simply turn off or setback. The multi-room type systems allow one outdoor unit to be connected to 8 indoor units. Mitsubishi offers five Multi-Zone outdoor units from 20,000 Btu/h to 48,000 Btu/h capacities (heat pump only) that can fit several hundreds of possible combinations of indoor units. The Multi-Zone design also solves the issue of limited installation space (i.e. does not clutter the exterior of the building).

Mitsubishi warrants ductless mini split systems for 7 years (compressor) and 5 years (all other parts).

Tags Ductless air conditioners, Ductless heat pumps

Categories Ductless air

Ductless Systems Save Money

10/09/2011 //

Ductless System: How to Save Money

Keep the air filter clean. Majority of ductless mini split indoor units have washable filters. It is a very good idea to clean your air filters every 30 to 45 days during the season (winter or summer), and more often if you run your ductless indoor unit on “Fan” mode. Clogged air filters reduce airflow and result in reduced comfort and much higher operating costs. Worse, the reduced airflow is a primary cause of equipment failure, such as cracks in a heat exchanger due to excessive overheating and expansion, or liquid refrigerant flush-back that cause compressor failure.

Keep your Ductless equipment maintained. Every mini split system comes with recommended and required annual maintenance suggested by the manufacturer. Just as with your car, maintenance will keep the equipment operating at peak efficiency and avoid breakdowns. Routine maintenance will extend useful life to your equipment and reduce electric consumption (lowers your electric bills). Comfort systems are an expensive investment – take care of them. Click here for more on Routine Maintenance.

Keep the remote control away from direct sunlight or cold drafts. The remote control has a built-in temperature sensor, so the control is the thermostat! Having it exposed to direct sunlight will throw-off the temperature reading causing your ductless mini split air conditioner work harder for no reason, thus increasing your electric bill and reducing comfort level. Same applies for heating season – keep your mini split remote control away from drafts or other heat sources.

Add insulation. If you don’t have at least R-30 (about 9”) of insulation in your attic, consider adding it there. Your sidewalls are not insulated – that too is a must. Another area of the house where energy savings can be achieved through insulation is the basement. Insulate your basement – this can save up to 10% of your heating energy, year after year. Savings add up quickly.

Replace old windows. If you have damaged, leaky or single pane windows, you are paying to heat the outdoors!

Zoning. A ductless mini split is made with zoning in mind. You do not have to cool or heat rooms or areas you do not use. It is the same as turning your TV on and leaving the house. Why? Cool or heat rooms you need, and save money. Make yourself comfortable!

Inverter Technology (Variable Speed Compressor). The latest technologies in home comfort systems are ductless mini split units that utilize inverter which matches the equipment output more closely to the load (i.e. room temperature vs. set point), providing more even heating and quieter operation. Inverter technology allows indoor blowers to operate at different speed, matching the airflow to the system output, thus enhancing humidity removal during the cooling season. Oh yeah, inverter technology saves $200 to $400 per year on electricity costs.

High efficiency air cleaning. If air-borne pollen, dust, dander and other particles are making you or a family member sick, switch on the ion generator or plasma filter (already thoughtfully built-in a ductless mini split unit). It will clean the air whenever the blower is operating. Want more cleaning – keep the fan on “high” or use your ductless system in “Fan” mode when heating and cooling is not needed. This will allow the air to be cleaned when there is no call for heating or cooling.

Categories Ductless air

Choosing the right ductless system

10/09/2011 //

Choosing the right ductless mini split system could be a challenging task due to the fact that market currently saturated with choices. High quality, dependable, high efficiency ductless mini split heat pumps on the market are far superior to anything we’ve seen before. Here is some advice:

Sanyo Dual Zone 9+9 kbtu Heat Pump System KMHS0972-2/CMH1972

Sanyo is a proven winner in the industry. They continue to innovate while producing some of the most efficient ductless mini split heat pump models available. This one offers dual zone cooling and heating with 2 evaporator coil, each with 9000 Btu capacity, or .75 tons. The feature-rich design include inverter-driven DC compressor for quiet operation, 16.4 SEER for outstanding energy savings, wireless remote with LCD display, R-410A refrigerant and much more.

Get a total of 18,000 Btu capacity, or 1.5 ton, with this highly rated, highly reliable ductless mini split heat pump. The Sanyo Dual Zone 9+9 kbtu Heat Pump System KMHS0972-2/CMH1972 is one of the best on the market.

Mitsubishi Single Zone 12000 Btu 22 SEER Heat Pump MSZ-FE12NA/MUZ-FE12NA

Features of the Mitsubishi Single Zone 12000 Btu 22 SEER Heat Pump MSZ-FE12NA/MUZ-FE12NA include an inverter-driven DC compressor that is efficient and very quiet. The patented iSee sensor monitors the room’s temperature zones and controls the flow of air to where it is needed for optimal balance.
Enhanced air filtering and dehumidification, plus wireless LCD control are included with the ductless minisplit heat pump package. This unit has everything you look for in a top of the line ductless minisplit air conditioner. The design and build is outstanding, and Mitsubishi uses the best components and materials in the industry. That shouldn’t surprise anyone because Mitsubishi was one of the first companies to master mini split air conditioner technology nearly 40 years ago. Mitsubishi quality and reliability is unsurpassed. This unit offers very high efficiency – 22 SEER for cooling and 10.55 HSPF for heating – along with 1 ton cap
acity which is enough to heat and cool one large room or medium-sized zone with an open floor plan.

Sanyo Single Zone 17 SEER 12000 Btu Air Conditioning System 12KS71

Sanyo has a proven track record of innovation and performance. This Sanyo mini split air conditioner delivers very good efficiency. Twin rotary compressors produce much lower operating noise and very little vibration. The variable speed fan, wireless control, dry mode for enhanced dehumidification and R-410A refrigerant complete a package that is clearly one of the best in the business.

Categories Ductless air

Home Heating Systems

10/09/2011 //

One of the best ways to become more energy efficient is by selecting the right home heating systems. One of the simplest home heating systems is a ductless heat pump setup. As the name implies, this technology does not require installation or connection to built-in ductwork in order to function. Whether adding ducts is too costly or impractical, ductless heat pumps are one of the best solutions for home heating. They are easy and efficient to install and include a matched set of outdoor condenser and an indoor air handler.

Both single-room and multi-room ductless heat pump systems are available. Zoning is easily facilitated via separate temperature controls in each room. Since ductwork is not needed, home heating systems based on ductless heat pumps are neat and fast to install.

The units themselves are energy efficient, and this type of system allows rooms that do not need heating to be unheated, which saves even more on annual utility bills.