T46SAA-1C Johnson Controls Fan Coil Thermostat

Overview

The Johnson Controls T46SAA-1C is a line voltage fan coil thermostat designed to control heating, cooling, or combination heating and cooling equipment. It is engineered for standard duty applications requiring integrated system and fan switching, making it suitable for fan coil units, packaged terminal air conditioners, and zone heating valves in commercial and residential spaces.

Features

• Narrow operating differential without the need for an anticipator to ensure precise temperature control
• Integral system and fan switches providing Heat-Off-Cool selection and Low-Med-High fan speed adjustment
• Switch mechanism and wiring connections contained within the switch box to isolate electrical circuits from the liquid-filled sensing element
• Robust design featuring a high-impact plastic enclosure with a locking cover and Allen-head screw to prevent unauthorized tampering
• Dual Fahrenheit and Celsius internal scales with options for knob or concealed setpoint adjustment

Specifications

• Model: T46SAA-1C
• Supply Voltage: 120 VAC, 208 VAC, 240 VAC, 277 VAC
• Control Type: 1 Heat / 1 Cool, Non-Programmable
• Changeover Type: Manual
• Thermostat Temperature Range: 40°F to 90°F (5°C to 30°C)
• Thermometer Range: 50°F to 90°F (10°C to 30°C)
• Mechanical Differential: Approximately 0.7°F (0.4°C)
• Mounting: Standard double gang box with a separable mounting plate
• Contact Action: SPDT (Single-Pole Double-Throw)
• Wiring Connections: Color-coded No. 16 AWG wires, 8 inches long

Applications

• Control of line voltage fan coil units in commercial and industrial HVAC systems
• Management of packaged terminal air conditioners (PTAC)
• Operation of zone heating and cooling valves in conditioned spaces