494 CHAPTER 21 1950 Guide Hence, if 1 in. pipe is used, the friction of the circuit will be 45 X 46, or 2070 milinches, and if 11 in. pipe is used, the friction will be 50 X 12, or 600 milinches.

664 CHAPTER 31 Values for Ci are given in the following table:

830 CHAPTER 39 1950 Guide torque at low starting current, because a wound rotor motor with its con troller and resistance can develop full load torque when starting with about full load current.

918 CHAPTER 44 1950 Guide Moisture Control .by Liquid Absorption Offers a Useful Air Conditioning Tool, by F.

If 7W Heating Ventilating Air Conditioning Guide 1951 Window, windows coefficients' of transmission. 198, 203 leakage. 215 solar radiation through, 288 ventilators, 558 Winter air conditioning system, 615 . comfort zone, 132 freezing equipment, 748 Wound rotor motor, 853 Wrought-iron. pipe, 571 Wrought-steel pipe, 571 Y Year-round air conditioning system, 615 air flow in, 615 control methods, 617 design procedure, 629 ' equipment arrangement, 616. installation, 616 location of apparatus, 628 selection, 626 -z Zone control, 616 Zone of evaporative regulation, 121 Zoning, 616 control, 616, 828 recooling, 617 reheat, 617 volume control, 649 CHAPTER 1 TERMINOLOGY Glossary of Physical and Heating, Ventilating, Refrigerating and Air Conditioning Terms Used in the Text l Absolute Zero: The zero from which absolute temperature is reckoned.

6 CHAPTER 1 1951 Guide Insulation (Thermal): A material having a relatively high resistance to heat flow, and used principally to retard the flow of heat. - Isobarlc: An adjective used to indicate a change taking place at constant pressure.

188 CHAPTER 9 1951 Guide nomic considerations involved in the selection of an insulating material as adapted to various building constructions.

326 CHAPTER 13 1951 Guide pressure and evaporate when pressure is relieved, obtaining the heat of vaporization from the surrounding air or ground.

386 CHAPTER IS '' 1951 Guide te^mmeTC^a^ Standards 113-44 is a method of rating oil-burning floor furnaces by Commercial Standard CS 104-48 is a method of rating warm air furnaces equipped with pot-type oil burners.by test.

858 CHAPTER 39 1951 Guide and automatically accelerate to the desired speed.

882 CHAPTER 40 1951 Guide missible velocity becomes that corresponding to a total sound level of 36.3, or ap proximately 800 fpm.

372 CHAPTER 14 1952 Guide : ' ' .i.

412 CHAPTER 16 / ' * 1952 Guide The clay-lined brick chimney is the most commonly used chimney, but recently other building materials have been used for reasons of economy or convenience.

838 CHAPTER 37 . 1952 Guide Fio. 6.

862 CHAPTER 39 1952 Guide motors are usually two winding with a 2 to 1 speed ratio in each winding.