What does TCO mean on a water heater?

Thermal Cut Off Switch (TCO): The water heater is also equipped with a resettable thermal switch, designed to shut off the gas supply in the event the water heater has been exposed to high combustion chamber temperatures caused by flammable vapors (e.g. spilled gasoline), poor combustion caused by a blocked vent or …

What is a thermocouple TCO?

The TCO is an automatic reset thermal switch. When activated it will open the. thermocouple circuit and shut off the main and pilot burner gas flow. The pilot would have to be relit. after the TCO has had sufficient time to cool down (sensor is below 120 degrees F).

How do you reset a TCO switch?

Step 1: Reset the Thermal Switch

1. The thermal switch can trip if the water heater is not getting enough air.
2. Press the small reset button in the center of the thermal switch.
3. Even if you do not hear the thermal switch click, try lighting the pilot using the instructions on the water heater’s label.

How do you test a TCO switch?

To check if a TCO has failed, an electrician can test for continuity across the TCO terminals with a multimeter (with the shower isolated and made safe). The circuit will be open through the TCO if it has failed. If the TCO is ‘good’ the circuit will be closed and the multimeter will emit an audible tone.

How does a TCO work?

Key Takeaways. The total cost of ownership (TCO) includes the purchase price of a particular asset, plus operating costs, over the asset’s lifespan. Looking at the total cost of ownership is a way of assessing the long-term value of a purchase to a company or individual.

How do I know what thermocouple to buy?

How to choose a Thermocouple

1. Determine the application where you will use the thermocouple sensor.
2. Determine the temperature ranges the probe will be exposed to.
3. Determine how important a fast response time is.
4. Consider any chemical, abrasion or vibration resistance.
5. Consider any installation requirements.

What is a TCO switch?

Thermal cutoff (TCO) is mechanical bi-metal disc thermostat, also called a temperature sensor, thermal switch, thermal limit switch that operates as a single-pole switch to turn a circuit on or off depending on design specification.

How do I test my TCO?

What is a TCO electrical?

Known as a thermal fuse, thermal link, or TCO, the MICROTEMP® thermal cutoff provides protection against overheating by interrupting an electrical circuit when operating temperatures exceed the rated temperature of the cutoff.

How do you conduct a TCO?

How to perform a TCO analysis

1. Identify the acquisition you’re analyzing. You can use total cost of ownership to estimate the costs of various products and intellectual property.
2. Define the length of ownership.
3. Consider all possible costs.
4. Consider possible additional income.
5. Compare several different scenarios.

Are thermocouples all the same?

Selection of Appropriate Thermocouples Some of the factors include chemical resistance, temperature range, vibration and abrasion resistance, and installation requirements. Different alloys are employed to measure different temperature ranges. Properties such as corrosion resistance are also a selection factor.