Through The Wall Air Conditioner & Heat Pump (TTWA /TTWP)

High Efficiency

HARMONY MINI systems are among the most efficient in the industry, with EER’s up to 10.6 and COP up to 3.1. All of our Harmony systems are AHRI Certified, and UL listed in the US and Canada.

Optimized System Design

Components are both individually and systematically optimized to ensure HARMONY MINI systems work in wide ranges of applications, and deliver the right amount of heating or cooling when you need it, and with maximum efficiency.

How Do TTWA Systems Work?

TTWA are through-wall mounted systems that consist of 3 major components: the main unit, the wall sleeve, and the grille. TTWA systems utilize an electrically driven compressor to pump refrigerant through coils, pipes, and other components to cool indoor air.

TTWP systems use an electrically driven compressor in the same way, but can use a reverse refrigeration cycle as its primary heat source. TTWP can also utilize an electric heater as a back-up heat source when outdoor temperatures fall below freezing.

TTWA Construction

YMGI’s TTWA systems are mounted through the wall. The knock-down wall sleeve is 26″ x 15.6″ x 21.5″ powder coated steel. This steel sleeve provides a sturdy housing for the refrigeration unit.

The main refrigeration unit consists the evaporator coil, condensing coil, compressor and other components, all mounted to a powder coated steel chassis. The grille protects the condensing coil and controls air flow across it . It is attached to the exterior side of the wall sleeve.

TTWAs are an easy and efficient way to cool and heat a room with a single piece of equipment. There is no need for refrigeration piping or special wiring. Installation is simple and fast. A small section of the wall is cut out to install the wall sleeve, which houses the main unit. Units can be plugged into a standard wall electrical outlet or hard wired to a disconnect switch box.

Quiet Operation

Unique low-noise design makes our systems some of the quietest on the market.

Perfect with Any Decor

YMGI’s HARMONY MINI systems are molded in a neutral color that compliments any décor. It has a tactile controls and digital display.

YMGI’s TTWA is equipped with a standard controls. Systems come preconfigured for wired and wireless thermostats. YMGI TTWA systems also come with Energy Managment & Thermostat Connections and Dip Switches allowing you to use Door and Occupancy Sensors.

YMGI TTWAs provides precise temperature control and allow the temperature to be easily set to the exact comfort level.

The stylish design and neutral color of these units make them ideal for any décor. Units are available in cooling capacities from 7,000 to 12,000 Btu/h and heating capacities from 7,000 to 11,500 Btu/h with 2, 3 or 5-KW back-up electric heat.

Available in 115/1/60, 208-230/1/60 and 265-277/1/60. An LCDI cord comes with the unit. Optional Accessories available: wall sleeve, grilles, drain kit and sub-base.

Perfect Temperature in Every Room

YMGI HARMONY TTWA/TTWP are fully self-contained systems, allowing each guests’ room to be independently controlled. Room temperature is set using the control panel. HARMONY MINI systems allow each guest to experience personalized comfort. Make each room cool and dry in the summer and warm and cozy during the winter.

Easy Installation

The HARMONY STANDARD TTWA/TTWP systems use a rigid 4 piece knock-down wall sleeve to fit into a 26″ x 15.6″ opening. Condensate drains to the exterior side of the wall sleeve. A condensate drain kit may optionally be installed on the heat pump models to allow easy drainage during winter. Finally, the system is plugged into a wall outlet or wired to a dedicated disconnect switch.

That’s it! Your HARMONY MINI system is now ready to cool and heat all your round.

Quality Construction & More

Guests are tough on equipment, and YMGI’s HARMONY MINI systems are designed using thicker steel and fewer plastic parts than many competing systems on the market. Many of our steel components have a baked on powder coated finish, to ensure an attractive and rust free cabinet, and sleeve. The front panel is impact resistant ABS, molded in a neutral color, that easily coordinates with any rooms’ decor.

Comfort & Convenience

Air Filtration
Every YMGI indoor unit incorporates our washable and reusable particulate air filter.

Eco-friendly Refrigerant
YMGI’s green mission doesn’t end with energy consumption. Older systems use R-22 refrigerant. Every YMGI system uses R-410A refrigerant, which is non-ozone depleting.

Condensate Evaporation
For rapid evaporation, the YMGI PTAC/PTHP uses a sling on the outdoor fan blades to throw any condensate onto the outdoor coil. This increases cooling efficiency and minimizes water run-off.

Back-up Electric Heater
YMGI offers TTWA systems equipped with electric heaters, so a single system can take care of all of a rooms heating or cooling needs. We also offer TTWP systems with a secondary electric heater that heats spaces in weather that may be too cold to effectively utilize a heat pump.

Filter Timer
YMGI HARMONY MIN systems are designed with a filter timer, that let’s you know when it’s time to clean them.

Easily Replaces Your Old Systems
YMGI HARMONY STANDARD systems fit into a standard 26″ x 15.6″ opening, to easily replace older less efficient or higher maintenance units.

With all these great features, discover the best value in state-of-the-art PTAC/PTHP systems.

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Optional Accessories Available:
Wall Sleeve,Grille, Drain Kit, Sub-Base, Wall Mount Thermostat,
Door Sensor, Occupancy Sensor.

• Brochure
• Product specifications
• Installer’s Instruction Manual
  User Manual