This document provides guidelines for a corporate design manual (CD 2.0) for a company operating in the HVAC market. It outlines the key elements of the new design system, including the "Red Line" motif that connects brand messaging to product benefits, the "Red Wavy Wall" background, and photography style showing people in work or living environments. Guidelines are given for applying these elements to literature, logos, colors, typography, formats, graphics, and other brand touchpoints. The system is designed to present a unified yet differentiated brand identity across six company brands while reinforcing strategic positioning as committed, smart, and positive.