Transcription of BASIC HYDRONIC SYSTEM DESIGN - ctashrae.org
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BASIC HYDRONIC SYSTEM DESIGN - ctashrae.org
HYDRONIC Systems BASIC HYDRONIC SYSTEM . DESIGN . Terminal Units FCU FCU FCU FCU FCU FCU. Fan Coils, Chilled Beams, Finned Tube, Radiant, etc. Distribution Piping AS-1. P-1. Decoupler Primary Pumps ET-1. P-B-1. Closely Spaced Tees P-1 & P-2. P-2. B-1. P-B-2. Expansion Generation Equipment Tank Air / Dirt B-2. Secondary Pumps Boilers, Chillers, Cooling Separator P-B-1 & P-B-2 Towers, WWHPs, etc. 1. REFERRING TO PUMPS. FCU FCU FCU FCU FCU FCU. FCU FCU FCU FCU FCU FCU. AS-1. AS-2. P-1. P-3. P-B-1. ET-1 P-CH-1. ET-2. P-2. P-4. B-1 CH-1. Primary P-B-2. Secondary P-CH-2. Pumps B-2. Pumps CH-2. Secondary Primary Pumps Pumps HEATING COOLING. AIR/DIRT SEPARATORS. Air Vents at High Points Reduce Fluid Velocity Change Fluid Direction Reduce Pressure (Tangential). Coalescence (Microbubble). 2. EXPANSION TANKS. Control pressure, control problems Expansion tanks control thermal expansion and contraction of SYSTEM fluid z Establish the point of no pressure change.
8 NEW “SMART” PUMPS Speed varies without sensors High Efficiency ECM zElectronically Commutated Motor zA.k.a. DC Brushless Motor Integral VFD Sophisticated Electronics Residential to Light Commercial TYPE GPM HD (FT.) HP RPM HORIZ. IN-LINE 20 - 375 10 - 75 ¼ - 3 1760, 3500 END SUCTION 40 – 4,000 10 - 400 ⅓- 200 1160, 1760, 3500 VERTICAL IN-LINE 40 – 12,000 10 - 400 ¼ - …
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