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Published byJonas Oliver Modified over 9 years ago
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SYSTEM SELLING BINDER
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WHY NOT HEAT PUMPS COST TOO MUCH TO BUY COST TOO MUCH TO OPERATE COST TOO MUCH TO MAINTAIN TOO COMPLICATED TOO NOISY
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SOFTWARE LEEDS OPERATING COST CLIMASIZE SOUND ANALYZER
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WSHP INSTALLED COST
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FOUR PIPE INSTALLED COST
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SUMMARY
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RELATIVE INSTALLED COST
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ASHRAE MEDIAN LIFE WLHP 19 ROOFTOP 15 PTAC 15 MARRIOTT PTAC 7 CHILLERS 20
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OPERATING COST CONSUMPTION-KW/SQ FT/YR 2 PIPE FC 1.3 VAV ROOFTOP 1.2 VAV CENTRAL 1.1 PTAC 1.3 PTHP 1.2 WLHP 1.0
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AIR COOLEDE CONDENSERS 27 % COIL EFFICIENCY LOSS 10.0 EER ERODED TO 7.3 IN 18 MONTHS CONDENSER FAN MOTOR FAILURE 15% PER YEAR SHORTENED COMPRESSOR LIFE
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MAINTENANCE COST 2 PIPE FC 1.4 VAV ROOFTOP 1.1 VAV CENTRAL 1.2 PTAC 0.8 PTHP 0.85 WLHP 1.0
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QUICK RULES OF THUMB 1.AVERAGE SQ FT/TON 300 2.AVERAGE CFM/SQ FT 1 3.AVERAGE LIGHTING LOAD 2-3 W/FT 4.AVERAGE INSTALLED COST $5-8/FT 5.TENNANT FIT COST $2/FT 6.MAINTENANCE COST WSHP $.10/FT/YR GEO.07 VAV.135 AIR/AIR.14 7.HAVAC USES 45-55% OF ENERGY 8.OF THIS AMOUNT COOLINGTOWER 6% BOILER 23 SYSTEM PUMP 24 HEAT PUMPS 48
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QUICK SELECTION METHODS BUILDING SIZE 100,000 SQ FT USE 300 PER TON 100,000/300=333 TONS USE 2.5 GPM PER TON 333 x 2.5=832 GPM PUMP SELECTION USE 75 FT OF HEAD BHP=956 X 8.3 X 75/33000 X.75 EFF=24 HP TOWER SELECTION USE WB PER ASHRAE LOCATION USE 90-101 DEGREES USE 956 GPM BOILER SELECTION USE 50% DIVERSITY BTU=956 X 500 X3.5 DEG=1673,000 VENTILATION PER LOCAL CODE USE 1 CFM PER SQ FT IF RATE =15%=15000 CFM
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SOUND UNITS CHANGES COMPRESSOR ISOLATION FAN ISOLATION CHASSIS ISOLATION MUFFLERS ROTARY AND SCROLL COMPRESSORS 410 A
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SOUND NEW CERTIFIED SOUND LAB CERTIFIED SOUND POWER DATA
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FACTORY VISITS
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NATIONAL REFERENCE JOB LIST
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BULETINS TECHNICAL COMPETITIVE MARKETING OTHERS
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