Document v6DJdBE1NKQYgXOvnw9VB0296

T a b l e I. C ost D o lla r s p e r on for a C o m p le te Sy s te m ,T n c lu d in g H e a t in g a n d C o o lin g C o il s , F a n , D ucts, R e f r ig e r a t io nI E q u ip m e n t, T em perature C ontrols, etc .* 950 CHAPTER 44 TCooowleirnsg Per T on 60.00 90.00 1.38 i. 120.00 1.43 ' 155.00 1.55 - 190.00 1.30 1.33 CO <K4 zO s*'sOi cc 8> - 55 -H . WPCL. Per Sq Ft Floor = e Is 0 F Z o> Oah Per T on 00 775.00 730.00 690.00 664.00 650.00 641.00 628.00 612.00 585.00 568.00 2.32 2.15 2.07 1.99 1.95 1.93 1.88 . 1.84 1.76 i : 7 "i 1.28 1.25 52.00 50.00 48.00 46.00 44.00 42.00 40.00 1.23 . 1.17 1.14 1953 Guide s 13,100 19,350 24,500 35,700 35,700 51.600 46.000 66.400 68,200 . 97.400 90.000 128,200 110,000 156,800 129.000 183.600 168.000 234.000 205,000 284.000 T otal dling quipment E R efrigera Air H an otal Cost .T 6,250 11,200 15,900 20,400 29.200 38.200 46,800 54| 600 66,000 79,000 tion Equip ment 15 11 g <0 S'* I si! " 12.500 25.000 37.500 50.000 75.000 100.000 125.000 150.000 200.000 250,000 go a ss- a* Q 1*6 1 0 Q CH " 2 P 0|0O)O9I0OC0*)^0-H)00O0OS0X^0C0' IfliNHoaocoMtOiO R efrigera tion E quip ment PER T on n CO a g aU 8 < CO cS". " J-3- 3 S g -v -J2 & IfS it e, 51 Is -IOJta 3 o S1f 2 .1 S'S -S||! IS Hlj ! ral 8,333 16,666 25.000 33.332 50.000 66,664 83.333 100,000 133 ^328 166,666 Floor Area sq ft & 8 | to * S g t- 0 0 g 0 g Owning and Operating Costs 951 the estimated unit costs of the component.parts.of the system. A.rear sonably precise estimate1 of the cost of .the components may be obtained frqm.'cost records of recent installations of a comparable design, or may be obtained from manufacturers or contractors, Table 2. Probable Useful Life of Equipment* Lirz in Yp-aes 1. Heat Producing Equipment () Boilers................................. () Stokers and burners......... 2. Heat Distributing Equipment () Piping--copper.......... ............. () Piping--iron........... \......... (c) Radiation--concealed...___ (d) Radiation--direct................ (e) Valves and specialties........... 3. Air Handling Equipment () Filters--automatic................ .......... () Heating and cooling coils.................. (c) Spray humidifiers and dehumidifiers (d) Fans........................................................... (e) Air conditioning units......................... (f) Motors.................... ............................... (g) Electrical starting equipment........... (h) Pneumatic control systems................. (t) Electric control systems...................... 20 20 same as bldg. 20 25 25 . 10. 20 20 10 15 10 20 20 15 15 4. Air Distributing Equipment () Ductwork.............................. () Outlets, grilles..................... (c) Duct insulation................... 5. Refrigerating Equipment (a) Centrifugal refrigerating machines... (5) Reciprocating refrigerating machines (c) Motors and starters............................... (d) Piping--copper.................. ..................... (e) Piping--steel.......................... .............. (/) Pumps................................ ....................... 6. Water Saving Devices (a) Evaporative condensers....................... (6) Cooling towers........................................ (c) Wells.......................................................... same as bldg. 20 15 20 20 20 20 20 20 15 15 25 * Taken from U. S. Bureau of Internal Revenue Schedule of Probable Useful Life, revised 1942. In Table 1 an attempt has been made to give approximate averages of the cost of air conditioning systems where the refrigeration requirement is one ton for every 333 sq ft of floor area, and where the air. quantity to be distributed is I5 cfm per sq ft of floor area. This table should be used with caution, as the floor area per ton of refrigeration and the cfm per square foot of floor area may vary between wide limits. Other first costs, incurred because of the installation of the air condition-