YMGI Symphony SOLO 57 Series

YMGI DC INVERTER SOLO Single Zone Wall-Mounted Mini-split
Single Zone-Outdoor Unit
The SOLO outdoor condensing unit has an 16 SEER rating. With heating and cooling capacities of 9k and 12k that run off of a 115 volt, 1 phase, 60Hz electrical supply, as well as 18k, 24k, 30k and 36k that are powered by 208-230 volt, 1 phase, 60Hz. The compact design allows for ground installation, or mounting on a wall, under a deck, roof top,  or even on a balcony.

Wall Mounted Indoor Unit
The SOLO single zone mini split has a wall mounted evaporator unit. It offers an efficient and quite heating and cooling solution for any single room application. The indoor unit uses an integrated mounting plate and only requires a single 3” hole for conduit that houses the condensate drain hose, refrigerant pipes and electrical wiring. The SOLO 57 features a simplified display that shows mode and temperature. A motorized louver system quietly distributes air throughout the space. The SOLO 57 is a designed to provide  quiet energy efficiency  and precise temperature control to create a comfortable living and working environment.

A Smart Heating And Cooling Solution

Mini-split systems are a great solution for both new construction and retrofit or remodeling jobs. They are easy to install, and don’t require tying in to existing duct work. They’re also ideal for a modern heating and cooling solution in or older houses that were built with hot water heat, radiant heat, or space heaters.

Mini-splits are a great choice for room additions and other structures such as sunrooms, garages, sheds and pool houses. Heat and cool rooms and structures that cannot be connected to the existing central air conditioning system, or where extending or installing duct work would be time consuming, costly, or impossible.

How Mini-split Systems Work:

With a mini-split system, the indoor unit is mounted in the room you want to heat or cool. The outdoor and indoor units are connected with copper refrigerant pipes, and power and communication wires,  that are wrapped tightly, insulated, and passed through a small 3” opening in the wall. Installation is fast and easy.

The mini-split’s compressor (found in the outdoor condensing unit) pumps refrigerant through the condensing coils and the metering device to the indoor unit where a fan blows across the coil to cool the room. In heating mode, the unit absorbs heat from the outside air and moves it indoors to heat the room. In most climates, this provides efficient heating and cooling, keeping you comfortable all year long.

Most central system outdoor units are up-flow, which means the condenser fan is pointed upwards. Because of this, the outdoor units need more installation room. A mini-split system’s outdoor unit is horizontal flow, with the fan pointed sideways. Because it requires less room, a mini-split can be placed where installation of a central air system would not be possible. A mini-split can be installed on a concrete pad, a balcony or below a deck, making them ideal for metropolitan areas, where space between buildings can be very tight.

Maximum Comfort, Minimum Cost

A conventional forced air cooling or heating system uses an “on and off” cycle. When a conventional system starts running, it runs at its top speed, consuming the maximum amount of energy in order to reach the desired temperature. The system then cycles on and of to maintain the set temperature. The continual starting and stopping of the major components in a conventional air conditioning system reduces the life span of the compressor and other components.

YMGI mini-splits use a DC Inverter to convert alternating current (AC) to Direct Current (DC), modulate pulse width, and then direct the inverted current back to alternating current (AC) at the optimum frequency, giving precise control over the operating speeds of the electric motors and compressor. Our Symphony Series Mini-split DC Inverter system, allow your system to start slowly and smoothly, and then accelerate to higher speeds to quickly bring the room to the desired temperature. Once the set temperature is reached, the system slows and adjusts itself to counter the heat gain or loss of the room, maintaining a more consistent temperature. Delivering maximum comfort at minimum cost.

Easy to Operate and Easy To Live With

Every YMGI mini-split indoor unit comes with a remote control, that lets you select the thermal mode, desired temperature, fan speed, and oscillation of the air louvers, allowing you to customize your comfort. The remote lets you program the start and stop time. YMGI mini-split indoor units use oscillating louvers to evenly distribute conditioned air throughout an entire room. The outdoor units feature quiet operation, horizontal venting and take up less space then a conventional central air condenser.

Products Perfect for Any Decor

YMGI sleek, attractive wall mounted units are a clean and stylish addition to any decor. YMGI has indoor units that suit your needs and your taste.

High Efficiency
All YMGI (57) Series DC Inverter systems have ratings of up to 16 SEER. ETL listed in both the U.S. and Canada, and certified by AHRI and ENERGY STAR®.

Intelligent Defrosting
YMGI defrosting is intelligently controlled by a microcomputer processor and ensure worry-free, heat pump performance in mild and cold weather. This unique ON-DEMAND defrosting design improves heating efficiency, thermal performance and keeps your room comfortable throughout the winter.

Remote Control
The (57)3 puts control of a room’s temperature in your hand. YMGI’s remote lets you control every feature and function of your Indoor Unit, from anywhere in the room. While other mini-split systems place their indoor air temperature sensor behind the grille of an indoor unit, YMGI’s sensor is built into the remote. It measures the temperature where people are located, not the wall or ceiling unit. Accurate temperature control for personal comfort.

YMGI Technology

• DC Inverter Technology – Continuously Adjusting for Profound Performance
  Unlike conventional systems that repeatedly cycle between on and off, YMGI Symphony SOLO DC Inverter systems monitor room temperature and continuously adjust compressor speed up or down to provide precise temperature and humidity control. The incoming electrical power has a fixed frequency of 60 Hertz. DC Inverter systems convert alternating current (AC) to Direct Current (DC), modulate the pulse width, and then convert the inverted current back to alternating current (AC) at the optimum voltage and frequency, allowing the system precisely generate the temperature needed, and maintaining room temperature within a very narrow range, while consuming substantially less energy.
• Optimized System Design
  Components are both individually and systematically optimized to ensure SOLO systems work in wide ranges of applications, and deliver the right amount of heating or cooling when you need it, and with maximum efficiency.
• Low Ambient Temperature Heating & Cooling
  When outdoor temperatures drop, heat pump capacity and efficiency are lower. In low ambient temperatures, YMGI’s DC Inverter technology operates at higher efficiency than many other systems available on the market. The powerful heating system ensures you stay warm, even in extreme cold weather. YMGI’s DC Inverter technology and special control logic also make cooling in low ambient temperature ranges a reality.
• Soft Start
  The compressor starts at a lower voltage and frequency and accelerates, for a smooth and soft start. This reduces energy consumption of the outdoor unit by approximately 30% compared to conventional HVAC systems. This also reduces electrical circuit load when more than one electrical device is used.
• Over-Current, Over-Heat & Over-Pressure Protection
  Built-in protection for over-current, over-heat and over-pressure, ensure safe operation and component longevity.
• Adaptive Smart Control
  The adaptive smart control fuzzy logic enables responsive and precise control over the compressor frequency, voltage, fan speed and valve opening size. This ensures rapid, precise and safe adjustments; delivering the exact amount of warm or cool air with minimum energy consumption.

Comfort & Convenience

• Auto Mode
  By continuously sensing and comparing the set temperature to the room temperature, this feature switches between heating and cooling modes automatically.
• Turbo Heating and Cooling
  This function boosts cooling or heating capacities at high compressor speed and fan speed. Rooms reach set temperatures as quickly as possible.
• Air Swing
  Motorized louvers that oscillate vertically or horizontally, circulating air throughout a room, maintaining an even temperature, and eliminating hot or cold spots. The louver motor can also be turned off, so that you can direct air flow to a specific area. All swing functions can be adjusted using the remote control.
• Hot Start-Up
  When heating mode is selected, or when the system transitions from cooling to heating, the indoor fan motor doesn’t immediately start. This prevents cold air from being blown into an already cold room. When the indoor unit coil and pipes are preheated, the fan engages and circulates warm air.
• Sleep Mode
  Sleep Mode allows the system to adjust the room set temperature to slowly rise when cooling, or fall when heating. This saves energy and allows you to sleep comfortably while preventing drastic temperature changes.
• 24-Hour On/Off Timer
  Set your indoor unit to heat or cool any time of day.
• Memory and Auto Restart
  If your unit should lose power, YMGI systems remember the operation mode, airflow, and temperature settings and continue normal operation once power is restored.
• Self-Diagnosing
  Error codes are shown either on the LCD display of the indoor unit, or LED lights on the outdoor control boards. If your system experiences an issue, it can be diagnosed easily and accurately by an HVAC professional, and help quickly resolve the issue.
• Digital Display On/Off
  Our easy to read LCD display can be turned on or off using the remote control. Keep the room dark at night, or use the digital display as a night-light.

Safety Systems

• Low Pressure / Refrigerant Leaking Sensor
• Compressor Discharge Temperature Sensor
• Outdoor Coil Temperature Sensor
• Outdoor Ambient Temperature Sensor
• Indoor Coil Temperature Sensor
• Indoor Air Temperature Sensor
• Built-in Over-Current Fuse at Outdoor Unit
• Built-in Over-Current Fuse at Indoor Unit
• Optional De-Ice Heater in Outdoor Unit Pan

System Model#

• WMMS-09K-V2A(57)2
• WMMS-12K-V2A(57)2
• WMMS-18K-V2B(57)3
• WMMS-24K-V2B(57)3
• WMMS-30K-V2B(57)3
• WMMS-36K-V2B(57)3

• Brochure
• Engineering Submittals
• Installer’s Instruction and User’s Manual