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GAS TRADE: UNIT 30 (5th ed. pub. 2016)
Gas Trade: Unit 30 - Controls: Purpose and operation
SKU: 2021627
Published by CSA Group
Publication Year 2016
93 pages
Withdrawn
Product Details
Overview
CSA Group's 2015 Gas Trade materials reference the Red Seal Program's trade outlines for your preparation to become a nationally recognized gasfitter. Please visit the Red Seal Program's website for more details.
Unit 30 - Controls: Purpose and operation
Purpose:
Controls are mechanical, electrical, or electro-mechanical components that determine when and how a controlled device will operate or stop operating. A control in its simplest form is a manually operated mechanical device such as a manual shutoff valve. Simple automatic controls can be mechanical, like a pressure relief valve, or electro-mechanical, such as a bi-metal thermostat.
Electrical controls determine when and how power will be delivered to an electrical load. An electrical control, in its simplest form, will apply or remove a voltage to a single load. In more complex control systems, the initial switch of one control will govern the action of another control that may control a load.
Learning Objectives:
At the end of this unit you will be able to:
CSA Group's 2015 Gas Trade materials reference the Red Seal Program's trade outlines for your preparation to become a nationally recognized gasfitter. Please visit the Red Seal Program's website for more details.
Unit 30 - Controls: Purpose and operation
Purpose:
Controls are mechanical, electrical, or electro-mechanical components that determine when and how a controlled device will operate or stop operating. A control in its simplest form is a manually operated mechanical device such as a manual shutoff valve. Simple automatic controls can be mechanical, like a pressure relief valve, or electro-mechanical, such as a bi-metal thermostat.
Electrical controls determine when and how power will be delivered to an electrical load. An electrical control, in its simplest form, will apply or remove a voltage to a single load. In more complex control systems, the initial switch of one control will govern the action of another control that may control a load.
Learning Objectives:
At the end of this unit you will be able to:
- Describe the basic functions of controls.
- Define common control terms.
- List the function and selection criteria for mechanical controls.
- List the function and selection criteria for electrical controls.
- Describe the interaction of mechanical and electrical control devices.
- Describe troubleshooting procedures for control systems.
- State the propane and natural gas code requirements for controls on appliances over 400,000 Btu/h (120kW).
- Review a control system application to ensure manufacturer and Code requirements are met.
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