Heating Ventilating Air Conditioning Guide 1938 Table 6.

Heating Ventilating Air Conditioning Guide 1938 EXHAUST SYSTEMS Quick removal of dust particles produced by such operations as grind ing, screening, mixing, etc., is accomplished with exhaust systems.

Heating Ventilating Air Conditioning Guide 1938 If r, the mechanical resistance, is very small, formula 1 may be written 1 ,,* no % where n0 is the natural frequency of the machine upon the elastic pad, In most cases of design of resilient machine mounting the effect, of frictional resistance is small, and Equation 2 may be used.

T t Heating Ventilating Air Conditioning Guide 1938 Consideration must also be given to the power requirements for refrigeration while the car is standing or running at slow speeds.

Heating Ventilating Air Conditioning Guide 1939 Insulation (continued) .

Heating Ventilating Air Conditioning Guide 1939 OPTIMUM AIR CONDITIONS No single comfort standard can be laid down which would meet every need.

Heating Ventilating Air Conditioning Guide 1939 The unit type of construction is almost universally used, the unit incor porating the hopper, the transmission for driving the feed screw, and the fan for supplying air for combustion.

Heating Ventilating Air Conditioning Guide 1939 nections are the same as for vapor systems in that they have graduated valves on the radiator supply ends and thermostatic traps on the radiator return ends.

Heating Ventilating Air Conditioning Guide 1939 Chapter 15.

Heating Ventilating Air Conditioning Guide 1939 tinued turning in the threaded joint may in time result in a leak, par ticularly when the pressure is high.

Heating Ventilating Air Conditioning Guide 1939 system is driven by an internal combustion engine operating on prona Sufficient fuel for . several days' operation is carried in drums mounted a rack under the car.

Heating Ventilating Air Conditioning Guide 1939 gravity action).

Heating Ventilating Air Conditioning Guide 1939 other form of control is the type of automatic system regulated entirely from a single room thermostat.

Heating Ventilating Air Conditioning Guide 1939 CONTROL OF AUTOMATIC FUEL APPLIANCES It is essential that automatic controls be used with oil burners, gas burners, and stokers in order to maintain even temperatures and provide safe and economical operation of the heating plant.

Heating Ventilating Air Conditioning Guide 1939 Current Table 1-.