Product Overview:
Regulates room temperature in unit ventilators, fan coil units, and HVAC systems through proportional pneumatic control. The Crandall Stats & Sensors 2298-061-CSS features a direct-acting mechanism, adjustable 65°F–85°F set point, and remote bimetal sensing element. Its two-pipe design provides temperature-responsive pneumatic signals to compatible actuators and control devices.
Two-Pipe Pneumatic Control:
The thermostat operates with a two-pipe pneumatic control arrangement and requires a clean, dry, oil-free air supply. Its proportional control response supports stable temperature regulation in HVAC applications.
Remote Bimetal Temperature Sensing:
The remote bimetal sensor detects changes in surrounding air temperature and communicates the temperature response to the controller. The sensor can be installed away from the main thermostat body using compatible pneumatic tubing.
Replacement Guidelines:
The Crandall Stats & Sensors 2298-061-CSS may require replacement if temperature regulation becomes inconsistent, pneumatic output fails to respond, or the sensing mechanism becomes inaccurate. A qualified HVAC controls technician should inspect the remote sensor, pneumatic tubing, air supply pressure, connections, and connected actuator before determining whether the thermostat itself needs replacement.
Common Signs of Failure:
Temperature readings do not produce the expected control response.
Pneumatic output pressure remains unchanged despite temperature variations.
Setpoint adjustment becomes unresponsive.
Air connections develop leakage.
Connected pneumatic actuators operate inconsistently.
Equipment Compatibility:
The Crandall Stats & Sensors 2298-061-CSS is an OEM direct-acting thermostat designed for its designated unit ventilator control application. Its direct-acting mechanism and 65°F-85°F temperature range define its control configuration. Verify the original part number and equipment documentation to confirm the correct application before purchasing.
Technical Specifications:
Brand: Crandall Stats & Sensors
Part Number: 2298-061-CSS
Product Type: Unit Ventilator Thermostat
Control Action: Direct Acting
Temperature Range: 65°F-85°F
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