Hi Chris, Could you kindly quote me the various promotions of air con brands that you have for System 4 for HDB BTO 5 room? Also kindly provide a quote with options of normal and higher BTU for the compressor unit and also the warranty and the materials used for cabling. 3 x 9k + 1 x 18 3 x 9k + 1 x 24 Thanks! Chee Keeng