Product Overview:
Temperature-limit regulation helps protect compatible HVAC equipment by controlling operation when specified thermal conditions are reached. The Bard HVAC 8402-105 Limit Control is an OEM component identified by its L230°F–30°F temperature designation and 7-inch specification.
Temperature Limiting:
The Limit Control is designed to monitor temperature conditions within its specified operating range. Its temperature-responsive function establishes the point at which the equipment's controlled operation is affected, helping maintain the intended temperature-limit conditions. The L230°F–30°F designation identifies the control's specified temperature configuration within the equipment's limit-control arrangement.
Limit Switching:
When the monitored temperature reaches the designated limit, the control produces a switching response that changes the state of the controlled circuit. This response determines how the connected equipment operation is affected under the specified temperature condition. The switching function allows the limit control to participate in the equipment's temperature-protection arrangement without serving as the primary temperature-regulation control.
Replacement Guidelines:
Replace the Bard HVAC 8402-105 Limit Control if physical damage, deterioration, or switching malfunction prevents it from responding correctly to temperature-limit conditions. Failure affecting its temperature-responsive control action may also indicate the need for replacement.
Common Failure Symptoms:
- Equipment operation stops unexpectedly.
- Temperature-limit control becomes inconsistent.
- The controlled circuit does not respond at the expected temperature.
- Equipment experiences repeated limit-related interruptions.
- The control exhibits visible physical damage.
Equipment Compatibility:
The Bard HVAC 8402-105 Limit Control is an OEM part for compatible Bard HVAC equipment requiring this specific control configuration. Verify the complete equipment model, original part number, temperature-limit designation, and 7-inch specification against Bard parts documentation before confirming fitment.
Technical Specifications:
Brand: Bard HVAC
Part Number: 8402-105
Product Type: Limit Control
Temperature Designation: L230°F–30°F
Length: 7"
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