1036 CHAPTER 45 1956 Guide continuous front and back exposures.

1094 CHAPTER 48 1956 Guide Transportation Air Conditioning 1095 PASSENGER BUS AIR CONDITIONING quire about 5000 cfm of outdoor air, and this is provided by either centrif The passenger bus designed for urban transportation operation presents a greater problem to the designer of heating systems than does the inter- ugal or propeller type fans belted or direct-driven by the air conditioning engine.

1118 CHAPTER 49 1956 Guide washing tank capacity in gallons, giving the gallons of 180 F water per day necessary to fill the tanks

J-M EMPLOYEES DEPOSED IN A-H CASES . o 5 NAME WHERE WORKED Atridge, Jeremiah J.

548 CHAPTER 21 1957 Guide FEATURES OF HOT WATER SYSTEMS Advantageous features of forced low temperature hot water systems are: 1.

1010 CHAPTER 40 ;: 1957 Guide ' ' Sound Control . 1011 F .ig 9.

GU5i %ft1138 CHAPTER 47 1957 Fig. 2.

1156 CHAPTER 47 1957 Guide Industrial Drying Systems 1157 classified as a convection dryer the principal source of heat is the heated air or other gases circulated in the diyer.

*128 CHAPTER 6 1958 Guide-.

272 CHAPTER 12 1958 Guide ticularly important, as the temperature gradient from floor to breathinglevel to ceiling may depend to a large extent on whether direct radiation. unit, heaters or warm air is used, and in the latter case, whether the air is ~ moved mechanically or by gravity.

516 CHAPTER 20 1958 Guide the drop risers.

830 CHAPTER 32 1958 Guide clined backward away from direction of rotation.

842 CHAPTER 32 1958 Guide addition to a remote location for the bearings, external cooling is fre quently required when the temperature exceeds 200 to 250 F.

904 CHAPTER 35 1958 Guide complisheu by the use of coil rating tables.

Heating Ventilating Air Conditioning Guide 1959 Class block walls coefficient of transmission, 123 solar heat gain, 191-194 Globe tuelluOmetcT, C34 Graphical symbols for drawings, 9-12 air conditioning, 9, 11, 12 ductwork, 19-12 heating, 9--11 piping, 9-10 refrigerating, 11, 12 ventilating, 10, 11 Grata area, 3 Creek alphabet, 6 Grille, grilles (see Register*), 237, 267 276, 343 air supply noises, 343 attenuation, 343-344 exhaust, 279 locations, 237, 276, 279 door, 279 floor, 279 wall, 279 mechanical furnace systems, 237 noises, 279, 343 railway car, 664 recirculating, 664 return, 237, 279 velocity, 237, 269, 279 Ground temperatures, 159 Guarded hot plate, 634 Gun type oil burners, 488 H Hangers, pipe, 448 Hartford return connection, 356, 374, 375 Hay fever symptoms, 90 Hazards high temperature, 64, 86, 691 Health, 83 Heat, 3 area transmitting surface, 758 auxiliary sources, 163, 197 balance, 481 combustion, 468, 473, 475 cramps, 64 emission of appliances, 197, 200, 201 occupants, 66, 67, 197 pipe coils, 209, 420 exchange measurements, 62 flow resistance, 51 flow through glass, 123, 184 flow through roofs, 102-110, 178 flow through walls, 110-118, 178 gain, 167 generated by motors, 197 humid,' 3 infiltration equivalent, 196 instantaneous load, 169, 191 introduced by outside air, 196 lag, 191 latent, 3, 162, 167, 196, 198, 204 liquid, 3 loss, pipe, 455 mechanical equivalent of, 4, 8 methods of, transfer, 47 . radiant, 48, 51, 52 - ratio, sensible, 199 removal, natural ventilation, 144 sensible, 3, 161, 198 gain, 167, 196 losa 161 specific, 3 Heat (continued) stroke, 64 total, 3 Inui&fer, 47, 102-118, SCO, 758 boiler rates, 502 convective, 2 overall coefficients, 93, 97, 102-118, 320, 758 surface coils, 320 symbols,-9, 50, 93 through building materials, 93 upper limits, 65 water coils, 758 Heat gain appliances, 197, 200, 201 ceilings, 195 components of, 167 ducts, 194, 300 electrical heating equipment, 200 floors, 195 gas burning equipment, 200 glass, 184-189 glass blocks, 188-194 infiltration, 196 instantaneous, 169, 191 latent, 169, 196, 198 lights. 197 miscellaneous, 199 moisture, 198 occupants, 197, 198 outside air, 196 partitions, 195 people, 66, 198 roof, 178-184 sensible, 169, 196 shaded windows, 195 solar, 184 steam heated equipment, 201 various sources, 163, 199 ventilation, 196 wall, 178, 182, 183 Heat loss air change, 161 bare pipe, 209, 455 basement, 160 building materials, 99-101 ceiling, 110, 112, 113 computations, 151 calculated method, 151 crack method, 162 exposure factors, 163 factors of safety, 163 number of air changes, 162 duct, 300 glass, 123 floor slab, 160 infiltration, 161 insulated pipe, 458-463 latent, 162 pipe, 209, 455 residence problems, 163 roofs, 114-118 sensible, 161 surface to air, 98, 99 through ceilings and roofs, 161 transmission, 93, 161 ceilings and roofs, 110, 112-118 walls, 102-109 Heat pomp, 3, 563 application, 574 basic circuits, 565 coefficient of performance, 665 components, 572 cooling load. 575 criteria for feasibility, 574 design, 575 distribution system, 575 xvi Heat pump (continued) equipment selection, 572-575 heating load, 571 heat sink, 567-569 heat source, 567-569 heat storage, 575 history, 563 operating cost. 572 performance characteristics, 569 performance factor, 565 seasonal performance, 571 selection, 575 system balance, 570 types, 565, 566 Heat removal, 144 Heat stress index, 1, 692 Heater, heaters blast, 1 direct-fired unit, 217, 218 electric, 217, 220, 232 gas, 514 design, 514 efficiency, 514 materials, 514 oil, 513' design, 514 materials, 513 rating, 513 testing, 513 radiant, 495 solar water, 760 solid fuel, 512 design, 513 material, 512 rating, 512 testing, 512 space, 512 installation, 514 unit, 217, 232 vertical blow unit, 218 - Heating air-conditioning units, 223. boilers, 501 surface, 1, 502 coil selection, 318 comfort, 151 district, 383 effect, radiator, 211 electric, 231 hot water, 756 load, 151. 261, 506 performance of coils, 320, 758 reversed cycle refrigeration,' 563 steam systems, 355 surface, 5 square foot.of, 4 symbols for drawing, 9 vacuum systems, 6, 355, 359 vapor, 6, 358 warm air system, 6, 237 water, 391, 409, 753 Heavy duty fan furnace, 510 High duty humidifiers, 591 High temperature hazards, 64, 88 High temperature systems, 409 basic system, 409 boilers for, 411 control, 413, 416 design, 409, 414 direct contact heaters, 413 expansion cushion, 411 features, 409 fittings, 414 fitting pressure loss, 416 heat exchangers, 413 pipe, 414 pumps, 414 Index to Technical Data Section High temperature systems (continued) storage, 418 water treatment. 418 TTigh velocity systems, 263, 295 dfesign, 295 control, 296 Hood, hoods, 701 Hot process exhaust, 703 Horsepower, boiler, 1 Hospital, hospitals air conditioning in, 83, 91 operating rooms, 86 . air conditions, 87 reducing explosion hazard, 86 sterilization of air, 83 ventilation requirements, 87 Hot water boiler supply load, 506, 753 coil surface, 758> demand per fixture, 747, 748, 755 person, 754 distribution, 390 electric heating, 756 beat pump, 762 heating surface, 758 indirect heater, 757 methods of heating, 755 panel heating, 419, 424 safety devices, 760 service, 753 service piping, 759 solar heaters, 760 storage tank, 753 supply boilers, 501, 755-758 piping, 759 temperature control, 759 Hot water heating systems, 3, 391 circulation head, 391, 392 direct return system, 2 elbow equivalents, 398, 416 expansion tank, 403 forced circulation, 391 friction heads, 393-396 Kvity, 391 h temperature, 409 basic system, 409 boilers, 411 control, 413, 416 design, 409, 414 direct contact heaters, 413 expansion cushion, 411 features, 409 heat exchangers, 413 pipe fittings, 414 pumps, 414 storage, 418 water treatment, 418 mechanical circulators, 402, 414 one-pipe forced circulation, 398 pipe sizes, 393-396, 415 piping design, 393, 414 relief valve, 408 reversed return system, 397 two-pipe, forced, 397 Human body acclimatization, 64 adaptation, 62, 64 cold conditions, 63 hot conditions, 63 heat emission, 66 high temperature hazards, 64 metabolic rates, 62 odors, 62 temperature, 62 Human body (continued) thermal interchanges, 62 zone of evaporative regulation. 63 Humid beat, 3 Humidification, 3, 224, 591, 594 control, 254, 621 direct, 594 evaporative pans, 512 forced furnace systems, 254 Humidifier, humidifiers air washer, 591 atomising, 591 cleaning, 512 evaporating pans, 512 high duty, 591 self-contained, 591 spray, 591 unit, 591 Humidistat, 3, 612 Humidity, 3 absolute, 3 control, 260, 621, 681, 687 influence of, 66, 88 measurement of, 633 nurseries for premature infants, 88 ratio, 3, 14 relative, 3, 14 specific, 3 Hygrometers, 633 Hygroscopic materials, 687 Hygrostat, 3 I Impulse trap, 378 -Inch of water, 3 Indoor temperature, 157, 167, 168 Induction units, 262, 263 high pressure types, 262 low pressure types, 262 Industrial air conditioning, 681 chimneys, 516 degree dayB, 538, 539 exhaust systems, 701 Infiltration causes, 139 due to wind pressure, 139 heat losses, 161 latent. 162 sensible, 161 measurement, 633 prevention by sealing, 143 temperature differences, 142 through outside doors, 140, 141 through walls, 139 through windows, 140 Inflammability, 80.