Document VGqER72qM64MMdrGwaBe6gXxN

Controls and Instruments Alco Valve Company ENGINEERED REFRIGERANT CONTROLS 851 Kingsland Avenue, St. Louis 5, Mo. New York Office: 55 West 42nd Street Chicago Office: 4554 North Broadway ~ the complete line of refrigerant controls ALCO SUCTION LINE CONTROLS: ' Controls and Instruments Barber-Colman Company Automatic Temperature Controls Rockford, Illinois THER*iSii 55iS55?S5r<SSi35 Type EPR EVAPOR ATOR PRESSURE REGULATORS--Sot ctU refrigerants, icith con Types 771-772 SUCTION PRES SURE REGULATORS--HOLD BACK VALVES--prevent motor overload. "Freon-it" "Frcon-2!." Type 760 "EVAPOTROL" --Pressure Regulator--ton, ,,Freon-lt"-~$i ton,Methyl Chloride. nection sizes up lo 6 in. ALCO SOLENOID VALVES: for. all types of service. For Liquid: "Freon-12" up to 75 tons; 110 tons "Freon-22." For Suction: "Freon-12" up to 10 tons; 15 tons "Freon- 22." For brine, water, steam, hot gas discharge, air and oil. Type St Type M3 ^Type R! ALCO THERMO,EXPANSION VALVES: for automatic control of liquid refrigerant on all types of refrigeration and air conditioning systems. Capacities--from frac tional tonnage to 200 tons "Freon-12," and "Freon-22;" selective charges. Low temperature valves for --40F to -- 100F. Type TCL Type 402 with preesure limiting feature A ngte type or straightthrough connections ALCO AMMONIA CONTROLS: Solenoid Liquid Valves--up to 172 tons. Solenoid Suction Valves up to 28 tons. Thermo Expansion Valves--from fractional tonnage to 125 tons. Automatic Expansion Valves--from fractional tonnage to 60 tons. ------ icmuws uuiu mermostats for proportioning control. MOTOR-OPERATED VALVES n" liotb fixed and adjustable ratio outdoor any size0buTld^g.COntr0lS applicable to ELECTRONIC CONTROLS A complete line of factory-assembled motor-operated valves for two-position and proportioning control. CONTROL MOTORS--PROGRAM SWITCHES On-off or fully proportioning. Extremely sensitive and flexible control of air or liquid temperature. Large, legible, easily understood dials. Mounted in metal "Control Center." ECONOSTAT ZONE CONTROL Type Bwith --------- JTypeUG Type TX U Strainer:-/ ALCO ALSO MAKES: Refrigerant Distributors--Constant Pressure (Automatic) Expansion Valves Liquid and Suction Line Strainers--Flooded Evaporator Con trols--Reversing Valves. 280 Spring return, unidirectional, reversible, multi-position, and proportioning types. Adjustable speed optional. Program switches for multiple step control of compressors, pumps, etc. Outdoor-indoor zone control for multi- occupancy buildings. Night depression with automatic morning warm-up. Op tional week end cutout. 281