SYSTEM SELLING BINDER
WHY NOT HEAT PUMPS • • • COST TOO MUCH TO BUY COST TOO MUCH TO OPERATE COST TOO MUCH TO MAINTAIN TOO COMPLICATED TOO NOISY
SOFTWARE • • LEEDS OPERATING COST CLIMASIZE SOUND ANALYZER
WSHP INSTALLED COST
FOUR PIPE INSTALLED COST
SUMMARY
RELATIVE INSTALLED COST
ASHRAE MEDIAN LIFE WLHP ROOFTOP PTAC MARRIOTT PTAC CHILLERS 19 15 15 7 20
OPERATING COST CONSUMPTION-KW/SQ FT/YR 2 PIPE FC VAV ROOFTOP VAV CENTRAL PTAC PTHP WLHP 1. 3 1. 2 1. 1 1. 3 1. 2 1. 0
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
MAINTENANCE COST 2 PIPE FC VAV ROOFTOP VAV CENTRAL PTAC PTHP WLHP 1. 4 1. 1 1. 2 0. 85 1. 0
QUICK RULES OF THUMB 1. 2. 3. 4. 5. 6. AVERAGE SQ FT/TON AVERAGE CFM/SQ FT AVERAGE LIGHTING LOAD AVERAGE INSTALLED COST TENNANT FIT COST MAINTENANCE COST 7. 8. HAVAC USES 45 -55% OF ENERGY OF THIS AMOUNT COOLINGTOWER BOILER SYSTEM PUMP HEAT PUMPS 300 1 2 -3 W/FT $5 -8/FT $2/FT WSHP $. 10/FT/YR GEO. 07 VAV. 135 AIR/AIR. 14 6% 23 24 48
QUICK SELECTION METHODS • • • BUILDING SIZE USE 300 PER TON USE 2. 5 GPM PER TON PUMP SELECTION TOWER SELECTION BOILER SELECTION VENTILATION PER LOCAL CODE 100, 000 SQ FT 100, 000/300=333 TONS 333 x 2. 5=832 GPM USE 75 FT OF HEAD BHP=956 X 8. 3 X 75/33000 X. 75 EFF=24 HP USE WB PER ASHRAE LOCATION USE 90 -101 DEGREES USE 956 GPM USE 50% DIVERSITY BTU=956 X 500 X 3. 5 DEG=1673, 000 USE 1 CFM PER SQ FT IF RATE =15%=15000 CFM
SOUND • • UNITS CHANGES COMPRESSOR ISOLATION FAN ISOLATION CHASSIS ISOLATION MUFFLERS ROTARY AND SCROLL COMPRESSORS 410 A
SOUND • NEW CERTIFIED SOUND LAB • CERTIFIED SOUND POWER DATA
FACTORY VISITS
NATIONAL REFERENCE JOB LIST
BULETINS • • TECHNICAL COMPETITIVE MARKETING OTHERS
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