Monitors boiler temperature and system pressure, the Rinnai 807000081 Temperature Pressure Gauge 1/4" NPT 1/2" Lock is a combined gauge assembly that provides a visual indication of conditions within the boiler water circuit. It combines two hydronic measurements in one instrument for direct observation during boiler operation. The assembly includes a 1/4" NPT gauge connection and a 1/2" lock.
Temperature Pressure Measurement:
Measures temperature and pressure through separate mechanical indications within the same gauge assembly. The pressure indication responds to pressure within the boiler water circuit, while the temperature indication corresponds to the thermal condition of the circulating water. Both readings are presented through the same instrument for direct observation.
Replacement Guidelines:
Replacement of the Rinnai 807000081 Temperature Pressure Gauge 1/4" NPT 1/2" Lock is recommended when the gauge no longer provides a clear temperature or pressure indication, the readings remain unchanged despite changing boiler conditions, or physical damage affects the gauge face, housing, or display function. Selection should be based on the specified part number and applicable equipment documentation.
Common Failure Symptoms:
Common signs that the temperature/pressure gauge may require replacement include:
Temperature indication that is difficult to read or remains unchanged.
Pressure indication that does not provide a clear reading.
Physical damage to the gauge face or housing.
Indications that do not correspond with changing boiler conditions.
Physical deterioration affecting the gauge's ability to display readings.
Equipment Compatibility:
The Rinnai 807000081 Temperature Pressure Gauge should be selected by verifying the 807000081 part number, 1/4" NPT gauge connection, 1/2" lock, and specific boiler model. Check the equipment's manufacturer documentation to confirm that this temperature/pressure gauge is specified for the intended Rinnai boiler before purchasing.
Technical Specifications:
Brand: Rinnai
Part Number: 807000081
Component Type: Temperature Pressure Gauge
Gauge Connection: 1/4" NPT
Lock: 1/2"
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