90 Am.

D ry-BBulb Temp. % Rel.

AMERICAN SOCIETYOF HEATING & VENTILATING ENGINEERS GDHTO the angle between dry and wet bulb lines.

American Society of Heating and Ventilating Engineers Guide, 1924-25 25.

American Society of Heating and Ventilating Engineers Guide,'1.925-26 ',rCoN r-o< -h O Ooo' OO--cloMo-HOCcNoCt-N.

American Society of Heating and Ventilating Engineers Guide, 1925-26 TEMPERATURE AND HUMIDITY CONTROL Air washers require method of control of temperature to prevent freez ing by too low temperature and of overhumidification by too high temperatures of the air entering and leaving the washer.

American Society of Heating and Ventilating Engineers Guide, 1928 Since actual temperature differences vary widely in different parts of the country, it is desirable to adopt some standard basis for testing, such as 70 deg. inside and 0 deg. outside, and in very precise work make a correction for other temperatures.

American Society of Heating and Ventilating Engineers Guide, 1928 Table 1: Flow of Steam in Pipes f/oiv of Sfetrm //> f'z/oes oss xv fSessse/Br //v os. tos/ae D/am/ts* orP/rr /-v Ab/cmss --Le/vcm or P/bjt //v Prrr Wc/cstr or / Cufr orS/sam SV"Lbs o/r SrorA* /*& M/w P-O.OOO/52 f/ 4 ^LS. ) ( a/ oct^.

American Society o/ Heating and Ventilating Engineers Guide, 1928 be found from Table 2 by multiplying the capacities found therein by constants given in Table 7.

American Society of Heating and Ventilating Engineers Guide, 1928 Chapter XII--Industrial and Domestic Oil Heating The majority of the burners operate on the intermittent system but there are several that operate on a system known as the high-low where the burner is always burning but the flame intensity is varied to meet the temperature variation as indicated by the thermostat.

American Society of Heating and Ventilating Engineers Guide, 1929 Unit heaters should be carefully air vented and usually a blast type trap of at least 50 per cent excess capacity should be used to take care of the load during the heating-up period.

American Society of Heating and Ventilating Engineers Guide, 1929 One heat equipment in this way takes the place of two.

American Society of Heating and Ventilating Engineers Guide, 1929 value found at the center.

American Society of Heating and Ventilating Engineers Guide, 1929 can be covered, the closer the design can be fitted to the requirements.

I '9w"f h' *L -.fbii3dHealth Practices Pa.mphlet No. 9 1 1Ub .