YMGI Multiple-Zone (59)4
DC Inverter 1-5 Zone 21 SEER Mini-split Outdoor Units
YMGI DC INVERTER CHOIR
Multi Zone-Outdoor Units
The CHOIR outdoor condensing unit has a 21 SEER rating. All with capacities from 30k to 60k Btu/h and capable of heating and cooling 1 to 5 zones. The CHOIR requires 208-230 volt, 1 phase, 60Hz power. Refrigerant is pumped as a thermal medium to dispense heat into ambient air in the summer; while absorbing heat from ambient air in the winter. The compact design allows for ground installation, or mounting in a variety of discreet locations, including on a wall, under a deck or even on a balcony.
A Smart Heating And Cooling Solution
Mini-split systems are the easiest cooling solution for additions to homes, or older homes that have been built with non-ducted heating systems, like hot water heat, radiant heat or space heaters. They are a great solution for new construction, retrofit or remodeling jobs.
Mini-splits are ideal for room additions and newly enclosed spaces such as sunrooms, garages, sheds and pool houses that cannot be connected to the main central air conditioning system, or where extending or installing duct work would be time consuming, costly, or not possible.
How Mini-split Systems Work:
The Differences between Central Air and Mini-split Systems
All air conditioning systems consist of an outdoor condensing unit and an indoor evaporator unit. The primary difference between a mini-split and central system is that the evaporator unit of the central system is commonly installed in the basement or attic and uses metal or fiberglass duct work to deliver warm or cool air to different rooms in your home. A central system requires space inside the walls between the joists for the duct work, plus floor/wall/ ceiling space to install the registers. These systems are often noisy and the duct work is a haven for dust, germs, mold, bacteria, and insects.
A mini-split system is ductless. The indoor unit is mounted in the room you want to heat or cool, so no duct work is required. The outdoor and indoor units are connected with small copper refrigerant pipes and wires that are wrapped tightly and securely through a 3” opening in the wall. Installation is faster, and easier than a conventional ducted system.
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 heat pump mode, the same unit absorbs heat from the outside air and moves it indoors to heat the room. For most climates, this results in efficient, heating and cooling, keeping you comfortable all year long.
The advantages of mini-split systems aren’t just on the inside. Most central system outdoor units are up-flow, which means the condenser fan is pointed upwards. Because of this, the outdoor units require 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 is not possible. A mini-split condenser can be installed on a concrete pad, on 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 has to cycle between on and off, in an effort 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’s 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, and maintaining a more consistent temperature. Delivering maximum comfort at minimum cost.
Easy to Operate and Easy To Live With
Each YMGI mini-split indoor unit come with a remote control, that lets you select the operating thermal mode, fan speed, and oscillation of the air louvers, giving you total control of your environment. The remote also lets you program the start and stop time, and desired temperature. YMGI mini-split indoor units operate quietly, and have horizontal or vertical air directional louvers to evenly distribute conditioned air throughout the entire room. The outdoor units feature quiet operation, horizontal venting and a contemporary look.
YMGI has Indoor Units that Suit Your Needs
YMGI CHOIR systems offer a complete line of indoor units to cool or heat your rooms. YMGI offers 5 diffent indoor units. Our wall mounted EW is the most popular style, the EC ceiling cassette mounts to the ceiling, the EF recessed fan coil can be mounted above the ceiling and attach to a short run of duct work to a standard floor, wall or ceiling register. The EU has the flexibility of floor or ceiling installation, and the EL console is a compact floor or wall mounted unit.
All YMGI DC Inverter systems, with ratings of 15-23 SEER. ETL listed in both the U.S. and Canada, and certified by AHRI and ENERGY STAR®.
Intelligent Defrosting
YMGI on-demand defrosting is intelligently controlled by a YMGI microcomputer processor to ensure the 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 winters and years.
U-TOUCH Remote Control
U-TOUCH puts control of a room’s temperature in the palm of your hand. YMGI’s U-TOUCH 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 cycle between on and off repeatedly, YMGI Symphony SOLO and CHOIR DC Inverter systems monitor room temperature and continuously adjust compressor speed up or down to provide precise temperature and humidity control. DC Inverter systems achieve this by converting alternating current (AC) to Direct Current (DC), modulating pulse width, and then directing the inverted current back to alternating current (AC) at the optimum frequency, precisely generating the thermal output needed, and maintaining the selected room temperature within very narrow ranges, while consuming substantially less energy. The incoming electrical power has a fixed frequency of 60 Hertz. By converter and inverter, the various current frequencies and voltages can be generated to supply the system, allowing the compressor to run at different speeds that suit the needs of various capacities and comfort levels with minimum energy consumption.
Optimized System Design
Components are both individually and systematically optimized to ensure SOLO and CHOIR 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 reach low ranges, heat pump capacity and efficiency drop. In low ambient temperatures, YMGI’s DC Inverter technology operates better 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.
Compressor Crank Case Heater
This component helps heat up the compressor when the outdoor ambient temperature is low, so that the compressor can have a smooth easy start, especially in extreme cold weather.
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.
De-Ice Base Pan Heater
This component prevents damage to your unit’s fan blade, coil, compressor, and other components. Automatically activated when outdoor temperatures go below freezing when ice could form in the base pan.
Over-Current, Over-Heat & Over-Pressure Protection
Built-in protection for over-current, over-heat and over-pressure, ensuring safe operation and longevity of components and the unit.
Adaptive Smart Control
The adaptive smart control fuzzy logics 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 delivering the exact amount of warm or cool air needed to ensure maximum comfort.
Fast Turbo Heating and Cooling
This function boosts cooling or heating capacities at high compressor speed and fan speed. Rooms reach set temperatures as rapidly as possible.
Air Swing
Motorized louvers that pivot vertically or horizontally, direct 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 spot. And it can all be adjusted using the remote control.
Hot Start-Up
When heating operation 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 heated, the fan engages and circulates warm air.
Sleep Mode
With the Sleep Mode on, the system will adjust the room target temperature to slowly rise when cooling or fall when heating. Saving energy, and allowing you to sleep comfortably while preventing sudden changes in the room’s temperature.
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. Should your system have a problem, it can be diagnosed easily and accurately by an HVAC professional, helping to quickly resolve the issue.
Digital Display On/Off
Our easy to read LCD display can be turned on or off with the remote control. This feature allows a room to remain dark at night, or you can turn the digital display on and use the 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
DC Inverter Mini System-Multiple Zone-(59)4 21 SEER
CHOIR Outdoor Units 1-5 Zone 30k-60k Btu/h
| Outdoor Unit Models | WMMS-30CH-V2B(59)4 (1 to 2) |
WMMS-36CH-V2B(59)4 (1 to 3) |
WMMS-42CH-V2B(59)4 (1 to 4) |
WMMS-48CH-V2B(59)4 (2 to 5) |
WMMS-60CH-V2B(59)4 (2 to 5) |
|
| Power Supply | 208-230/1/60 | 208-230/1/60 | 208-230/1/60 | 208-230/1/60 | 208-230/1/60 | |
| Cooling Capacity* (Btu/h) | Max. IDU Cap. Total 2 |
30,000 (2 Thermal Zones) |
36,000 (2 Thermal Zones) |
42,000 (2 Thermal Zones) |
48,000 (2 Thermal Zones) |
60,000 (2 Thermal Zones) |
| Rated 1 | 18,000 | 24,000 | 28,400 | 34,000 | 39,000 | |
| Min | 7,000 | 7,500 | 8,200 | 8,900 | 8,870 | |
| Total Power Input in Cooling Mode* (W) | Max. | 2300 | 3300 | 4500 | 4500 | 5100 |
| Rated | 1550 | 2250 | 2600 | 2600 | 3950 | |
| Min. | 650 | 800 | 900 | 1000 | 1200 | |
| SEER | Btu/h | 22.00 | 21.00 | 21.00 | 21.00 | 21.00 |
| HSPF | Btu/h | 10.50 | 10.50 | 10.50 | 10.50 | 10.20 |
| Heating Capacity* (Btu/h) | Max. IDU Cap. Total 2 |
32,000 | 38,000 | 50,000 | 59,000 | 64,000 |
| Rated 1 | 19,000 | 26,000 | 30,000 | 42,500 | 45,000 | |
| Min. | 7,000 | 7,500 | 8,200 | 8,900 | 8,870 | |
| Total Power Input in Heating Mode* | Max. | 2400 | 3000 | 3500 | 3500 | 4800 |
| Rated | 1750 | 2500 | 2920 | 2920 | 4400 | |
| Min. | 650 | 800 | 900 | 1000 | 1200 | |
| Liquid Valve Size | In | 2 x 1/4” | 3 x 1/4” | 4 x 1/4” | 5 x 1/4” | 5 x 1/4” |
| Gas Valve Size | In | 2 x 3/8” | 3 x 3/8” | 4 x 3/8” | 5 x 3/8” | 5 x 3/8” |
| Compressor Oil | RB68EP | RB68EP | FV50S | FV50S | FV50S | |
| L.R.A. | A | 27 | 45 | 45 | 45 | 55 |
| Compressor RLA | A | 10.82 | 15.82 | 13.9 | 15.6 | 17.8 |
| Compressor Power Input | W | 1440 | 2550 | 4150 | 4150 | 4150 |
| MCA | A | 15 | 20 | 20-All IDUs EW / 30-All IDUs EC or EU |
30-All IDUs EW / 40-All IDUs EC or EU |
40 |
| Fuse or Circuit Breaker (HVAC Type) | A | 25 | 30 | 30-All IDUs EW / 40-All IDUs EC or EU |
40-All IDUs EW / 50-All IDUs EC or EU |
40-All IDUs EW / 50-All IDUs EC or EU |
| Throttling Method | Electronic Expansion Valve | Electronic Expansion Valve | Electronic Expansion Valve | Electronic Expansion Valve | Electronic Expansion Valve | |
| Starting Method | Transducer starting | Transducer starting | Transducer starting | Transducer starting | Transducer starting | |
| Recommended Working Ambient Temp Ranges |
°F | AC: 0 ~ 118 HP:-4 ~ 75 |
AC: 0 ~ 118 HP:-4 ~ 75 |
AC: 0 ~ 118 HP:-4 ~ 75 |
AC: 0 ~ 118 HP:-4 ~ 75 |
AC: 0 ~ 118 HP:-4 ~ 75 |
| Condenser | Aluminum fin-copper tube | Aluminum fin-copper tube | Aluminum fin-copper tube | Aluminum fin-copper tube | Aluminum fin-copper tube | |
| Output of Fan Motor | W | 60 | 90 | 100 | 170 | 170 |
| Fan Motor RLA | A | 0.65 | 0.65 | 0.65 | 0.65 | 1.1 |
| Fan Motor Capacitor |
uF | 3 | 3.5 | 3.5 | 3.5 | 6 |
| Fan Type-Piece | Axial-flow 1 | Axial-flow 1 | Axial-flow 1 | Axial-flow 1 | Axial-flow 1 | |
| Fan Diameter | In. | 20.47 | 21.65 | 21.65 | 22.44 | 22.44 |
| Defrosting Method | Auto Defrost | Auto Defrost | Auto Defrost | Auto Defrost | Auto Defrost | |
| Climate Type | T1 | T1 | T1 | T1 | T1 | |
| Isolation | I | I | I | I | I | |
| Moisture Protection | IP24 | IP24 | IP24 | IP24 | IP24 | |
| Max. Operating Pressure at High Side | PSI | 550 | 550 | 550 | 550 | 550 |
| Max. Operating Pressure at Low Side | PSI | 175 | 175 | 175 | 175 | 175 |
| Sound Pressure Level dB (H/L) | A | 56 | 59 | 59 | 61 | 61 |
| Sound Power Level dB (H/L) | A | 63 | 69 | 69 | 71 | 71 |
| Outdoor Unit Dimensions (WxHxD) | In. | 38 × 27.6 × 13.4 | 38.6 × 31.1 × 13.4 | 38.4 × 31.1 × 14.6 | 42.75 × 43.38 × 17.63 | 42.75 × 43.38 × 17.31 |
| Package Dimensions (WxHxD) | In. | 40.5 × 29.53 × 18.03 | 42.63 × 33.63 × 19.22 | 42.63 × 33.63 × 19.22 | 45.56 × 48.63 × 19.75 | 45.63 × 48.63 × 19.38 |
| Net /Gross Weight | LBs | 114.6/124.5 | 153/164 | 154/169.75 | 198.4/216 | 198.4/216 |
| R410A Refrigerant/ Factory Pre-Charge for 25’ |
LBs | 3.53 | 4.85 | 6.17 | 8.05 | 8.05 |
| Maximum drive IDU NO. | 2 | 3 | 4 | 5 | 5 | |
| WMMS-30CH-V2B(59)4 | WMMS-36CH-V2B(59)4 | WMMS-42CH-V2B(59)4 | WMMS-48CH-V2B(59)4 | WMMS-60CH-V2B(59)4 | ||
| Total length (actual length) of fitting pipe | ≤ 150 ft | ≤ 200 ft | ≤ 230 ft | ≤ 250 ft | ≤ 300 ft | |
| Length of farthest fitting pipe | ≤ 60 ft | ≤ 60 ft | ≤ 80 ft | ≤ 80 ft | ≤ 80 ft | |
| Height difference between outdoor unit and indoor unit |
Outdoor unit at upper |
≤ 60 ft | ≤ 60 ft | ≤ 60 ft | ≤ 60 ft | ≤ 60 ft |
| Outdoor Unit at lower |
≤ 50 ft | ≤ 50 ft | ≤ 50 ft | ≤ 50 ft | ≤ 50 ft | |
| Height difference between indoor units | ≤ 25 ft | ≤ 25 ft | ≤ 25 ft | ≤ 25 ft | ≤ 25 ft | |