Unit handling orientation is determined by the location of pipe connection while facing the unit in the direction of air flow. Options include left-handed or right-handed connection units.

Panels are double skin with injection of high-density polyurethane. The outer skin is anti-corrosion color-coated steel sheet, and the inner skin is galvanized steel sheet. The cabinet consists of panels combined with aluminum alloy cards and sealing strips, tightened with concealed bolts.

The density of polyurethane injection is 50kg/m³ (thermal conductivity factor K≤0.0224W/m·K). The service door is a plastic-steel frame with polyurethane injection panels and rubber sealing strips.

Unitary structure design and multi-sealing strips ensure the air leakage rate is less than 0.29%. Units will not sweat even when exterior room temperature is 27°C with 90% relative humidity.

Copper pipe and aluminum fin type heat exchanger with optimal fin spacing. Fins are coated with anti-corrosive layers to ensure longer coil life and lower maintenance costs.