Mini Ductless Split-System

A mini ductless split-system consists of three main components; a condenser, an evaporator, and a remote control. The condenser (outside unit) is used to create air conditioning and the evaporator (inside unit) is used to distribute the air into the desired area. The condenser and the evaporator are connected with refrigerant line-sets and electrical wiring and can have a distance up to 100 feet between the indoor and outdoor units. High wall split-systems can also provide heat. Split-systems that provide heat are called “Heat Pumps” and use a reversing valve to change the flow of the refrigerant to create warm air instead of cool air. High wall systems can produce between 9,000 Btu. and 30,000 Btu. of cooling or heating depending on the size of the system. Each high wall system comes standard with the evaporator, condenser, remote control, and field wiring. A thermostatic defrost wire is included with heat pump units. Some of the benefits of a high wall split-system include:

Efficiency: Hydro-Sil CoolAire systems have SEER ratings from 13 to 18 SEER (Seasonal Energy

Efficiency Rating). Less than 5% cooling loss occurs with split-systems using insulated refrigerant line-sets versus up to 40% cooling loss for systems that use duct work. Split-systems are also very efficient, because they cool or heat only the areas where indoor units are installed.

Quiet: Because of the distance between the condenser and the evaporator and specially designed low-noise fan motors and fan blades (as low as 32 decibels); split-systems are ideal for creating a quiet environment.

Easy Installation: Only a 3” hole is needed through a wall or roof to run the wiring and linesets between the condenser to the evaporator. This keeps the inside and outside of the home aesthetically pleasing. All wiring is labeled separately to insure proper connections. Flare fitting connectors create quick, tight connections between the two units and the line-sets. Double insulated line-sets are used to reduce condensation from the extreme cool refrigerant that travels through the lines.

Environmentally Friendly: Hydro-Sil CoolAire split-systems offer environmentally friendly R410 refrigerant on selected models to prevent the depletion of the ozone layer that protects us from harmful UV rays produced by the sun

Inverter Compressors: Inverter compressors technology on 18 SEER models are available for additional energy savings.

Mini Split-System Operations

Following is a list of important details for the proper operation of high wall split-systems. Every unit is furnished with a full installations manual. Please reference the manual for proper procedures for specific equipment being installed.

(A) Drain Hose

The drain hose is plastic tubing expelling water created by the de-humidification function.

The drain hose may drain from either the left of the right side of the evaporator depending on the placement of the 3" hole.

(B) Liquid Line

The liquid line or (high side) refrigerant line is used to impel cool refrigerant from the condenser outside unit to the evaporator.

(C) Suction Line

The suction line or (low side) refrigerant-line is used to expel warm refrigerant from the evaporator inside unit back to the condenser outside unit.

(D) Electrical Wire

The high wall split-system equipment includes electrical wiring between the condenser and the evaporator. Consult your installation manual.

Wiring equipment will travel:

From the electrical box to a disconnect outdoors
From the disconnect to the condenser (outdoor unit)
From the condenser to the evaporator (inside unit)

(E) Flare Fittings

HVAC flare fittings are standard on all our high wall equipment.

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What is a Mini Ductless Split-System?