814 CHAPTER 37 1953 Guide Table 3.

858 CHAPTER 39 '1953; Guide trolled device from one controller to another, or to reverse the action of a controlled device in response to an impulse from a controller. 4.

104 CHAPTER S 1954 Guide Case 11 of Table 2 fits the conditions of the problem-if only free convec tion heating of the pipe is assumed.

442 CHAPTER 18 1954 Guide Table 2.

908 CHAPTER 41 1954 Guide preciable velocity has not yet been mastered, although it is a subject of current investigation.

1112 CHAPTER SI 1954 Guide the observed relative humidity by the ratio of the observed to the standard atmospheric pressure.

Dole Valve Co.. 1565 Fulton Sylphon Div., The.

Heating Ventilating Air Conditioning Guide 1955 Index to Technical Data Section Hot water heating systems* 5,527 circulation head, 527, 528, 535 classification, 531, 534 direct return system, 534 elbow equivalents, 529, 550 expansion tank, 540 forced circulation,-528,531,536 friction heads, 52S gravity, 531, 535 < available bead, 527 - - circulation- 527 pressure heads, '527 high temperature, 545 boilers, 551 circuits, 548 * controls, 551 design, 547 economics, 5*7- `-- fundamental (principles, 545 insulation, 549 ' pipe fittings; 649-: pumps, 548 *ii storage, 552 ' - - installation details, 543 ' mechanical circulators, 537, 548 one-pipe forced circulation, 532,. 535, 537 gravity circulation,' .531, 534,537 orifice friction heads, 533 ' pipe sixes, 529-531, 547 forced circulation, 527-632 gravity circulation, 527--532 piping design, 528, 548 pressure head, 527, 548 relief valve, 544 reversed return system, 534 safety devices, 544 - systems of piping* 534 two-pipe forced, 532, 535, 539 gravity, 530, 535, 538 coning, 544 Human body .: v acclimatization, 118 adaptation, H3`;; cold condition, 115 hot conditions, 115, 308 -. heat emission,1120, 308 high temperature hasards, 117 metabolic rates, 113 odors, 113 temperature, 114 thermal Interchanges, 113 cone of evaporative regulation, 115 Humid heat,.5 Humidification, 607, 799, 801 control, 482, 905 direct, 801* : " forced furnace systems, 482 Humidifier, humidifiers air washer, 801 atomizing, 803 high duty, 803 self-contained. 804 spray, 803 unit, 803 Humidistat, 5 Humidity, 5 absolute, 5 control, 6S1, 905, 1082 influence of, 122, 141 measurement of, 1145 nurseries for premature in fants, 140 ratio, 5, 25 relative, 5, 25, 689 Hygrometers, 1145-1147 Hygroscopic materials, 1016 Hygrostat, 5, 896 Ice systems, 865 Impulse trap, 516-519 Inch of water, 5 Induction units, 684 high pressure types, 684 low pressure types, 684 Industrial .cur conditioning,;!

738 CHAPTER 32 1955 Guide 5.

772.

1002 CHAPTER 44 1955Guide?.

1118 CHAPTER 49 high water temperatures are desired.

410 CHAPTER 16 1956 Guide 2.

574 CHAPTER 24 1956 Guide Embedded Piping for Floors The construction for piping embedded in floors will depend upon whether (a) the floor is laid on grade, or (b) the floor is above grade.

782 CHAPTER 34 1956 Guide ventilated space, by the protection of the equipment in the ventilation system itself, and by providing relatively dust-free air for critical manu facturing processes.