Manufacturers of refrigeration and HVAC systems.

• See also:
• Masterformat 2004
• 23 21 23 - Hydronic Pumps
• 23 50 00 - CENTRAL HEATING EQUIPMENT
• 23 60 00 - CENTRAL COOLING EQUIPMENT
• 23 70 00 - CENTRAL HVAC EQUIPMENT
• 23 71 00 - Thermal Storage
• 23 72 00 - Air-to-Air Energy Recovery Equipment
• 23 72 13 - Heat-Wheel Air-to-Air Energy-Recovery Equipment
• 23 72 16 - Heat-Pipe Air-to-Air Energy-Recovery Equipment
• 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
• 23 84 00 - Humidity Control Equipment
• 23 84 13 - Humidifiers
• 23 84 16 - Dehumidifiers
• 23 84 19 - Indoor Pool and Ice-Rink Dehumidification Units
• Masterformat 1995
• 15130 - Pumps
• 15700 - Heating, Ventilating, Air Conditioning Equipment
• 15750 - Humidity Control Equipment
• 15780 - Energy Recovery Equipment