Overview
The Alco Controls 200RB5T4T is a pilot-operated, 2-way normally-closed solenoid valve engineered for refrigerant systems. Manufactured by Emerson Climate Technologies, this valve delivers precise control of refrigerant liquids and gases in HVAC and light commercial refrigeration applications. The 1/2″ ODF (Outer Diameter Flange) connection and 8.2 ton R22 capacity make it suitable for mid-range refrigeration cycles where energy efficiency and system balance are critical.
Key Features
- Pilot-operated design enables smooth solenoid actuation at lower power consumption
- 2-way, normally-closed operation prevents backflow when de-energized
- 1/2″ ODF connection for standard flare-type refrigerant tubing
- Rated for R22 refrigerant at 8.2 ton cooling capacity
- Compact form factor suitable for retrofit and new installations
- Solenoid coil (24V standard) allows remote electronic control integration
Technical Specifications
- Manufacturer: Emerson Climate Technologies / Alco Controls
- Model Number: 200RB5T4T
- Valve Type: Pilot-Operated Solenoid, 2-Way Normally Closed
- Connection Size: 1/2″ ODF (Outer Diameter Flange)
- Refrigerant: R22
- Capacity: 8.2 tons
- Operating Pressure AC: 300 PSI (2067 kPa)
- Maximum Pressure: 500 PSI (3445 kPa)
- Standard Coil Voltage: 24V AC/DC
Typical Applications
- Medium-capacity refrigeration units and walk-in coolers
- Light commercial HVAC systems requiring solenoid liquid line control
- Refrigeration cycles with 6–10 ton cooling demand
- Equipment retrofit and replacement in existing R22 systems
- OEM assembly for refrigeration equipment manufacturers
Compatibility & Replacements
Compatible With
- R22 refrigerant systems and blends
- Receiver tanks and vertical liquid line installations
- Standard 24V AC/DC solenoid control circuits
- Emerson/Alco refrigeration manifolds and control panels
- HVAC equipment rated for 8.2 ton or smaller capacity
Replaces / Drop-In Replacement For
- Alco Controls 200RB4T4T (verify tonnage and refrigerant compatibility before substitution)
- Earlier 200RB series valves with identical ODF connection
- Verify compatibility with your equipment manufacturer or system integrator before ordering
Works With
- Standard refrigeration control boards and timers
- Emerson Climate Technologies components and assemblies
- Manual and automatic expansion valve circuits
- 24V solenoid coil driver circuits in HVAC microcontrollers
