SSUP Aug2003

Information about SSUP Aug2003

Published on November 8, 2007

Author: Elliott

Source: authorstream.com

Content

Tank plumbing:  Tank plumbing Single tank operation Multiple tank operation Electric vs. Gas back-up Slide2:  Direct Forced Circulation, PV,DD (SRCC 95003A) Single tank Mixing Valve Slide3:  Direct Forced Circulation, PV, DD (SRCC 97002A) Two tank 3 way ball valves Cold water supply Bypass solar or Pre-feed electric 1 2 3 Cold supply Slide4:  Gas/LPG Hot Water Heater Cold In Hot Out External Heat Exchanger with PV Pump and Control Slide5:  Gas/LPG Hot Water Heater Solar Storage Tank Cold In Hot Out 1 pump Thermosyphon Heat Exchanger Slide6:  Gas/LPG Hot Water Heater Solar Storage Tank Cold In Hot Out 2 Pump External Heat Exchanger Slide7:  Indirect Forced Circulation, HX (SRCC 92010A) Single tank Slide8:  Indirect Forced Systems, HX (SRCC 92013A) Two tank system Cold to: Storage Existing Tank Tempering valve Bypass on existing tank 1 2 3 4 5 6 7 9 10 11 System Start-up:  System Start-up System Start-up:  System Start-up Check solder joints Leaks Cold set joint “SHAKE IT” Indirect Active System:  Indirect Active System Differential Controlled Indirect Hot Cold Circulator Expansion Tank Check Valve Drain & Fill Valves Heat Exchanger in or around the tank Reverse flush with clear water:  Hot Cold Circulator Expansion Tank Check Valve Drain & Fill Valves Heat Exchanger in or around the tank Reverse flush with clear water What Pressure should be set?:  What Pressure should be set? Hot Cold Circulator Expansion Tank Check Valve Drain & Fill Valves Heat Exchanger in or around the tank Pressure Gauge Control 2.31 ft. = 1 p.s.i. 1 P.S.I. = 2.31 ft. Steps:  Steps 1. Reverse Flush system: Piping Heat-exchanger Collector Leave it full of clear clean water 2. Mix heat transfer fluid 3. Fill from bottom of collector to top Fill from Bottom to Top:  Fill from Bottom to Top Hot Cold Circulator Expansion Tank Check Valve Drain & Fill Valves Heat Exchanger in or around the tank Pressure Gauge Control Fill while circulator pump is running 1 P.S.I. = 2.31 ft. Steps:  Steps 4. Circulate until all air is removed Fluid will change color -no bubbles 5. Close valve on drain side 6. Fill pump will pressurize system 7. Run until proper pressure setting 8. Close valve on pump side Should be set at proper setting Pressure drop when running:  Pressure drop when running Hot Cold Circulator Expansion Tank Check Valve Drain & Fill Valves Heat Exchanger in or around the tank Pressure Gauge Control Cap boiler drains Take off handle 1 P.S.I. = 2.31 ft. Pump System start-up:  System start-up Test Controller Sensor Test Low resistance = High temperature Short collector sensor = no resistance short = high temperature = pump run Remove short = stop pump System start-up:  System start-up Test Circulator / Pump Flow through system Slug of hot or cold water D/C power supply in cloudy weather Pressure drop during pump run

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