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Ramsond Model 37GW3 12000 BTU SEER 16.0 Mini Split Ductless Air Conditioner + Heat Pump

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$149.99 (Fixed shipping cost)

Product Description

Ramsond® Model 37GW2 Ductless Mini Split Air Conditioner

Item-in-stock Brand New Condition Inventory Locatio
we ship UPS
Make Model Ramsond 37GW3
Description Wall Mount Ductless Mini Split Air Conditioner System
Condition BRAND NEW
Function Cooling and Heating (Heat Pump)
Capacity   •  12,500 BTU Cooling
  •  12,500 BTU Heading
Maximum Coverage Area Up to 540 Square Feet
SEER (Seasonal Energy Efficiency) 16.0
Refrigerant (Type and Amount) R410A - 2.25 lb
Compressor Rotary Type
Accessories Includes 15 Feet of Connecting Pipe (Lineset) and installation kit
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 rotary type 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.
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Indoor Unit

Outdoor Unit

Wireless Remote

Installation Kit



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.
37GW2 Installation Graphic
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Insulated Line-Set

Drain Hose

Vibration Pads

Wall sleeve

Insulation Putty


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-INSTALL™system 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.


Includes 15 feet of insulated copper line-set connecting pipes

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


Quick ConnectExternal Unit Connection



Technical Data Sheet  
Ramsond Model 37GW3  
Ductless Mini Split Air Conditioner  
Model 37GW3
Function Cooling & Heating (Heat Pump)
SEER 16.0 (Super Efficiency)
Coverage Area Up to 540 Square Feet
Rated Cooling Capacity 12,000 Btu
Rated Heating Capacity 12,000 Btu
HSPF 8.5 Btu/W.h
Rated Input Voltage 115 V~ Single Phase
Rated Input Frequency 60 Hz
Cooling Power Input 1100 W
Heating Power Input 1000 W
Cooling Current Input 9.5 A
Heating Current Input 9.0 A
Noise Level Indoor Unit < 22 dB(A)
Noise Level Outdoor Unit < 34 dB(A)
Gas Connecting Pipe 3/8 inches
Liquid Connecting Pipe 1/4 inches
Dimensions (Indoor Unit) (WxHxD)
35.50x11.00x8.00 inches
Dimensions(Outdoor Unit) (WxHxD)
30.00x21.75x10.25 inches
Weight (Indoor Unit) 24 lbs
Weight (Outdoor Unit) 75 lbs
  •  Rotary Type Compressor
  •  Digital Multifunction Wireless Remote
  •  Indoor Unit Dynamic LED Display
  •  Washable Corrugated Anti Mold Dust Filter
  •  Multi-Fold Evaporator for Faster Cooling
  •  Saw-Teeth Fan Design for Noise Reduction
  •  Self Diagnostic Microprocessor Control
  •  Indoor Unit (Pre-wired + Quick-Install)
  •  Outdoor Unit (Pre-wired + Quick-Install)
  •  Remote Controller (Batteries Included)
  •  15 Feet InsulatedCopper Line Set
  •  Complete Installation Kit
  •  Instruction Manual
  •  ETL
1 Year Parts Replacement Limited Warranty
5 Years Parts Replacement Compressor Limited

Unmatched Quality and Components
R410A-SEER 14

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 rotary type 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.



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.


Super Silent Operation and Sleep Mode Function

Ramsond ductless mini split air conditioners 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.


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.

Indoor Unit Dimensions
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  
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 tech@ramsond.com or click on the Contact Us button below to submit your questions and/or comments.
Item-in-stock Brand New Condition Inventory Locatio
we ship UPS
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Product Reviews

  1. Works well 5 Star Review

    Posted by on 22nd Jul 2017

    Easy to install and set up...once the lines were vacuumed and tested for leaks. Unit performs good and air handler is quiet, even on "HIGH".

  2. Good 5 Star Review

    Posted by on 26th May 2017

    Quiet and effective. You need pros to install it, though. Even the contractors called in ac people for this job.

  3. Cold enough to hang meat! 5 Star Review

    Posted by on 18th Jun 2016

    First thing- Go to the web site, get the latest manual and install instructions. This was a easy, perfect install, took a few hours (and we know NOTHING about AC units)

    I did have the local AC repair man come out, and vacuum down the unit, and turn it on for me ($85 service call) to make sure it was right. He confirmed the unit came precharged with the correct amount of Freon, so he did not have to do anything! (I was thinking he might have to add some)

    So, the unit is WHISPER Quite (both inside and outside units) and ICE cold! it was a easy install, by inexperienced guys, and worked perfect! (again we had it checked by a professional, who gave it the thumbs up!)

    In the past week, I have had a dozen people ask me where I got it!

  4. Great small profile 5 Star Review

    Posted by on 21st May 2015

    Great product when conventional duct work can't access a location, also for zone control.

  5. Great customer support 5 Star Review

    Posted by on 18th Apr 2015

    I purchased the min split ductless system directly from the Ramsond web site.
    I had several technical and installation questions. Ramsond technicians quickly emailed or called me.

    The system works as promised, is very quiet and it heats and cools my sunroom effectively.

  6. Excellent 5 Star Review

    Posted by on 12th Mar 2015

    Works well, and very quiet.

  7. Make sure you purge the sysytem 4 Star Review

    Posted by on 5th Nov 2013

    The unite was easy to install the direction manual that came with the unite was week i had to hard wire it it didn't come with a quick connect the direction for the remote were not the remote i had an in the directions it never mention's you have to purge the system after a call to tech support and looking no line it is working as advertised.