Overview
The Johnson Controls T-4054-1 is a horizontal-mounted, direct-acting pneumatic room thermostat belonging to the T-4054 Energy Manager Series. Designed for dual-temperature heating and cooling applications in commercial HVAC systems, it features an adjustable deadband between set points to eliminate overlap and promote energy conservation. It delivers a proportional output signal to precisely modulate pneumatic valves and damper actuators in response to space load changes.
Features
- Energy manager dual-temperature heating and cooling control
- Adjustable deadband of 0 to 30°F to prevent heating and cooling overlap
- Direct control action with a high-volume output capacity
- Premium bimetal sensing elements with pneumatic feedback for high accuracy
- Vibration and shock-resistant mechanical construction
Specifications
- Temperature Setting Range: 55 to 85°F (13 to 29°C)
- Operating Supply Pressure: 13 to 25 psig (20 psig nominal)
- Air Consumption: 38 scim (10 mL/s)
- Sensitivity: Adjustable from 1 to 3 psi/°F (factory set at 2.5 psi/°F)
- Piping configuration: 2-pipe system
- Mounting: Horizontal wall installation
Applications
- Individual space temperature control in commercial building automation systems (BAS)
- Single-stage heating and cooling HVAC systems requiring energy-efficient deadband management
- Proportional modulation of pneumatic valves, damper actuators, and zone controllers



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