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Ramsond 37GW3 12500 BTU 16.0 SEER Ductless Mini Split AC + Heat Pump

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Product Description

Ramsond Ductless Mini Split AC
Ramsond 37GW2 Ductless Mini Split AC

Ramsond 37GW2 Specifications
Ramsond Corporation introduces its ultra-efficient Ductless Mini Split Air Conditioner System model 37GW3. This new 12,500 BTU (with 12,500 BTU heat pump) model is equipped with Premium rotary compressor and pre-charged with the most advanced R410 refrigerant. This system is a perfect union of modern technology, efficiency, function and design It is not only super efficient (SEER 16.0) and super silent, but pleasing and neutral in appearance and styling. The interior unit's flat panel style blends perfectly with any interior design element. The perfect combination of function and design have made this highly advanced Ramsond system one of the most sought after systems among both HVAC and interior design professionals.

Ductless mini split air-conditioners are relatively new to North America. However, they are the most commonly used system of air conditioning throughout the rest of the world. Ductless systems are also referred to as 'zone systems.' Understandably, ductless split air conditioning systems are becoming more popular in homes and offices, even when they are equipped with advanced central air conditioning system. By providing zone cooling, Ramsond ductless split system air conditioners save energy, since only the rooms that are occupied and used need to be cooled/heated. Simply stated, they cool/heat the 'zone' or the area in which they are installed. They require no expensive ductwork installation. This is the reason that they are far more efficient than conventional air conditioners. You can turn on the system when you want to use the area/zone and when not in use, the system can be simply turned off, saving electricity and money. Operating costs are much lower than those of central systems that cool every room, whether or not the room is in use. So, with a ductless system you can control the temperature of a zone where it is located. Therefore, you have the benefit of cooling only the room that you want, while leaving the central AC system off.

Ductless mini split system air conditioners combine the zoning flexibility of a conventional room unit (a single air-conditioner installed through a wall or a window frame) with the whole-house cooling potential of central systems. Like central systems, they have two main components: a compressor/condenser (outdoor unit), as well as an air handling unit (indoor unit/evaporator), which contains an evaporator and a fan. All Ramsond models are also equipped with heat pump, providing both summer cooling and winter heating.


There are two parts to a ductless systems. The indoor unit (evaporator) and the outdoor unit (condenser). The indoor unit is installed on the interior of an exterior facing wall. The installation is extremely simple. The indoor unit is equipped with a mounting bracket. This mounting bracket is secured to the wall and the indoor unit clips onto it; much like hanging a picture frame. The outdoor unit is typically placed on a flat surface outside. The indoor and the outdoor units are connected by a series of wires for power and communication. Once the indoor and outdoor units are connected, then the connecting pipes (Line Set) need to be attached between the indoor and the outdoor unit. There are 2 sets of connecting pipes; the 'suction line' and the 'liquid line.' These insulated connecting pipes are pre-flanged and need to be attached to the connections of the indoor and the outdoor unit.

Ramsond's innovative QUICK-INSTALL system has now made the installation of its new range of ductless mini split systems even simpler than before. The new QUICK-INSTALL system incorporates the following features:

  • Pre-wired indoor unit
  • Pre-wired outdoor unit
  • Quick-Connection terminals for the connecting the outdoor unit to the indoor unit
  • Pre-flared, flanged, insulated Line Sets (Connecting Pipes) - No need for welding or soldering
  • Pre-charged System (R410) - No need to charge the system
  • Complete installation kit and hardware (Rubber Pads, Pipes, Drain Hoses, Tape, Putty, Insulation, etc.)

With these features of the QUICK-INSTALL system, the installation time is cut in half because the indoor and the outdoor unit are pre-wired and equipped with a quick-connection terminal. The quick-connection terminals also eliminate many of the wiring mistakes during installation which lead to permanent damage to system. With the QUICK-INSTALLsystem it is now much easier and cheaper to install these units. Both the indoor and the outdoor units are pre-wired and equipped with quick-connection terminals. .

Ramsond 37GW2 Quick Install System

Includes 15 feet of insulated copper line-set connecting pipes

3/8" OD Gas
1/4" OD Liquid
(Pre-flared and pre-flanged)

Quick Connect Insulated Copper Line Set
4 Connection External Unit

Ramsond 37GW2 Technical Information

Ramsond 37GW2 Features

Unmatched Quality and Components
Contains R410A Refridgerant
Contains R410A Refridgerant

Ramsond Ductless Mini Split Systems are simply the best systems presently in the market. The cutting edge quality of Ramsond ductless systems is simply unmatched. Quality is never compromised at Ramsond. Only the best quality and first-rate components, such as Premium compressors, and Activated Carbon filters are used in Ramsond products. All Ramsond ductless split air conditioners are pre-charged with certified R410A refrigerant. The R410A refrigerant is far more efficient than the typical R410A that is used in most air conditioning systems. It enables the high efficiency of the unit while preserving the ozone layer. This is another testament to Ramsond's dedication to environmentally friendly products.

Clean Air Filter

Multifold Evaporator

Integrated Advanced Air Filtration
and Heat Exchange System

All Ramsond ductless systems are equipped with two (2) anti-mold dust/particle filters, along with two (2) Activated Carbon filter cartridges. They are installed under the front panel cover of indoor unit. These filters are easily washable. They ensure a constant circulation of fresh, healthy and dust free air. Additionally, the blue colored hydrophilic aluminum foil in indoor unit are designed to stay free of water contamination, enhancing heat exchange efficiency and air quality.

Hydroponic Foil
Sleep Mode Function



Super Silent Operation and Sleep Mode Function

Ramsond ductless mini split air conditioning units are among the quietest (both indoor and outdoor unit) in the market. The indoor unit has a virtual silent operation. So silent that some of the world's most renowned recording studios utilize Ramsond ductless systems in their sound-rooms. Also, equipped with SLEEP MODE function, with the touch of a button, your Ramsond mini split system is set to automatically adjust the room temperature during your sleep.

Microprocessor Controlled Smart Operation

Ramsond ductless split air conditioners are equipped with highly advanced, state of the art, microprocessor controlled climate control system. Through this system, the environmental comfort is perfectly adjusted to your desired settings. The quality, flow and temperature is constantly monitored by the internal computer system of the unit to ensure optimal performance and maximum efficiency.

Smart Operation


Multidimensional Oscillating Louvers

Dimensional Oscillating Swinging Louvre Air Delivery Technology

Multidimensional oscillating louvers of Ramsond ductless systems ensure the uniform flow of air throughout the room. By selecting the 'SWING' feature on the wireless remote control, the louvers will continuously move in a uniform up/down movement to evenly spread the cool/hot air. They same feature would allow the louvers to be set in a stationary, single direction position which will focus the flow of air to a particular area of the room.

Superior Inner-Grooved Copper Tubing

The copper tubing of Ramsond ductless systems are grooved on the interior. This enables a much faster refrigerant flow, increasing the heat exchange coefficient and efficiency by 30-50% over the traditional smooth copper tubing.


Inner Groove Copper Tubing
What's Included

Ramsond ductless split air conditioners systems are the most complete systems available in the market. No other system in the market today comes with a such complete set of features and accessories. Each Ramsond model 37GW3 12,500 BTU Mini Split Ductless Air Conditioning System (with 12,500 BTU heat pump) will be shipped as a complete package. It will include all of the following:

  1. Indoor Unit (Pre-wired with Quick Install Connection) - Includes Wall Mounting Bracket
  2. Outdoor Unit (Pre-wired with Quick Install Connection)
  3. Wireless digital remote control (with wall mount sleeve, hardware and batteries)
  4. 15 feet of insulated copper line-set connecting pipes - 3/8" Gas, 1/4" Liquid - (pre-flared and pre flanged)
  5. Set of 4 anti vibration pads (for outdoor unit)
  6. Drain Hose
  7. Low Voltage Quick Connect Style Wire (for Defrost Function)
  8. Main/Input Wiring Harness
  9. Installation Kit (Includes Wall sleeves and trim, tape, insulation putty and cover)
  10. Instruction and Installation Manual

Please see the photographs below for all included components.

Indoor Unit
Ramsond 37GW2 Ductless Mini Split AC
Outdoor Unit
Ramsond 37GW2 Comes With
Included Installation Kit and All Accessories
Ramsond 37GW2 Included Accessories
Shipping and Guarantee
When you purchase a Ramsond ductless air conditioning system, you can be assured that you will receive the most reliable and highest quality system available in market today. Furthermore, you will have the piece of mind of knowing that your investment is safe and guaranteed by a reputable company.All units are BRAND NEW (Not refurbished or reconditioned) System. We DO NOT sell used, refurbished or reconditioned systems. All items available IN STOCK for immediate delivery. Your order will be immediately processed and shipped from one of our warehousing facilities in US. Most orders are shipped within 1 business days and typically arrive within 2-7 business days from the date of purchase.
Technical Support
Customer Support
At Ramsond, customer satisfaction is of the highest priority. A dedicated and highly trained team of professional engineers, HVAC technicians and sales specialists are at your disposal for all your sales, service and installation questions. If you require technical support during at any time, even during installation, our knowledgeable staff of technicians can provide you with necessary guidance and direction. You may contact our technical support at (248) 363-8302 or via email at
Payment, Shipping & Contact Information

All orders are typically shipped from our warehouse within 1-2 business day from receipt of payment. Shipping method is via ground carrier. Transit times usually range from 2-7 business days, although longer transit times are possible.

Cards We Accept

Terms, Conditions and Warranty Information
Ramsond 37GW2 Ductless Mini Split AC


Other Details

Coverage Area:
Covers Up to 540 Square Feet
System Type Cool:
12500 BTU (1+ Ton) Cooling
System Type Heat:
12500 BTU (1+ Ton) Heating (Heat Pump)
110 V / 60 Hz / Single Phase
Compressor Type:
Premium Rotary Compressor
Super Efficiency SEER 16
Installation Type:
QUICK-INSTALL® fast installation system
Full Function Wireless Digital Remote
Display Type:
Intelligent Microprocessor Digital Display
Pre-charged (R410 A Refrigerant)
Line Set:
Free Line Set and Installation Kit ($350 Value)

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Product Reviews

  1. Ramsond Split AC System 125000 BTU Unit. 5 Star Review

    Posted by on June 1st, 2015

    I bought this unit on sale, and had a professional install it. It arrived in perfect condition, with everything needed, except I did have to change my outside outlet from 220 to 115 for the power. Bottom line cost for everything was 1900.00, installed. I have been using the unit for three weeks as the only A/C in my 540 SQ foot condo, and it is wonderful. It is everything they claim it is, silent, efficient, remotely controlled, easy to clean the filters, and the air is so cold I actually get cold sitting close to it. This was a perfect solution vs a new system, & new ductwork, quote for $6,000.00 . I was told by my installer the only down is the parts may take a while to get here, but they are very efficient and long lasting.

  2. perfect 5 Star Review

    Posted by on October 3rd, 2014

    easy to install the only thing is the remote could be easier to use.
    there has to be a better way

  3. Easy to install, works perfectly. 5 Star Review

    Posted by on June 13th, 2014

    Works great, but waiting to to see how it works in temps over 90.

  4. easy to install 5 Star Review

    Posted by on June 7th, 2014

    had some shipping damage from ups. received great support from ac world. called again about operation of unit, and received the same great service. will defiantly buy from ac world again.

  5. Quality at a very reasonable price! 5 Star Review

    Posted by on September 26th, 2013

    I am a Contractor and I have purchased 3 units now for different jobs over the past three years with no complaints from my clients. They tell me that they are very happy with the heating & cooling capabilities, the quietness and little impact on their electrical costs.

  6. great unit that works 5 Star Review

    Posted by on August 29th, 2013

    great unit that works well

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Product #: R37GW3 5 stars, based on 6 reviews