Description
Overview
The Johnson Controls T-4506-201 is a dual temperature, direct acting pneumatic thermostat engineered for reliable climate control in commercial and industrial HVAC applications. Designed for horizontal mounting with an integrated indexing switch, this thermostat provides precise pneumatic output control across both heating and cooling seasons — all within a single, compact unit.
Key Features
- Dual temperature operation for year-round heating and cooling control
- Direct acting pneumatic output signal
- Horizontal mounting configuration for flexible installation
- Integrated indexing switch for easy seasonal changeover
- Automatic switchover at 17 Psig supply pressure
- Wide 55°F to 85°F dial range for versatile setpoint adjustment
- High 400 SCIM flow capacity for responsive system performance
- Low 20 SCIM air consumption for efficient pneumatic operation
- Compatible with 13 to 25 Psig supply pressure systems
Specifications
- Model: T-4506-201
- Brand: Johnson Controls
- Action: Direct Acting
- Mounting: Horizontal
- Switchover Pressure: 17 Psig
- Flow Capacity: 400 SCIM
- Air Consumption: 20 SCIM
- Supply Pressure Range: 13 to 25 Psig
- Dial Temperature Range: 55°F to 85°F
Application
Ideal for VAV systems, fan coil units, and other pneumatically controlled HVAC equipment in commercial buildings where dual-season temperature control and dependable switchover performance are required. The indexing switch simplifies summer/winter changeover, while the broad supply pressure compatibility ensures easy integration into existing pneumatic control systems.
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