Block1 - Installation of ICI Air Heating Appliances Flashcards
What is the first step in installing an ICI air heating appliance?
Determine the appropriate location for the air heating appliance. It should be installed in a well-ventilated, unobstructed area that meets the requirements of the local building and safety codes.
What types of ICI air heating appliances are mentioned?
- Furnaces
- Process burners
- Air driers
- Kilns
- Paint driers
- Food processing
- Direct-fired make-up air heaters
- Indirect make-up air heaters
- Atmosphere generators
True or False: An industrial furnace operates similarly to a domestic furnace.
False. An industrial furnace is used to provide heat for an industrial process by mixing fuel with air, while a domestic furnace primarily heats air.
What should be consulted for the installation of any gas-fired appliance?
The manufacturer’s documentation.
What is a key feature of direct-fired kilns?
The hot gases of combustion are released directly inside the kiln.
Fill in the blank: A conventional kiln uses _______ into the kiln through pipes and radiates heat into the kiln’s atmosphere.
steam flow
What is the purpose of a gas pressure regulator in the installation of ICI air heating appliances?
To ensure the gas pressure supplied to the appliance is within the required range.
What types of paint dryers are mentioned?
- Powder coating booths
- Spray booths
What is a significant difference between direct-fired and indirect-fired make-up air heaters?
Indirect-fired heaters require the installation of a flue vent on the exit of the unit’s heat exchanger flue passages.
What must be done before installing an ICI air heating appliance?
The design must first go through the design registry through Technical Safety BC and approvals need to be in place if the appliance/system is not already approved.
What is the function of vibration isolation in ICI air heaters?
To prevent vibration transmission and keep vibration energy from entering an object.
List the types of vibration isolation mounts mentioned.
- Wire rope isolators
- Spring mount vibration isolators
- Vibration isolation pad mounts
- Seismic mounts
- Ceiling mounted vibration isolation hangers
- Roof mounted vibration isolators
True or False: Seismic restraint systems must be designed and installed by a qualified professional.
True.
What are the two stages of a spray booth for vehicles?
- Spray stage
- Baking stage
What is the purpose of the control system in air heating kilns?
To monitor and regulate the kiln’s temperature, humidity, and airflow.
Fill in the blank: The installation of a food processing dryer depends on whether it uses _______ or indirect-fired burners.
direct-fired
What should be done if damage is found upon inspecting the shipment of an appliance?
Take pictures of any visible damage for reference and report any damage to the delivery carrier.
What is an important aspect of the installation process for direct-fired make-up air units?
Considerations include unit location, structural support, rigging, ducting sizing, and gas piping installation.
What types of atmosphere generators are commonly used in heat-treating?
- Exothermic
- Endothermic
What document outlines the seismic design standards in Canada?
National Building Code of Canada (NBCC) and Canadian Standards Association (CSA) Standard S832.
How should the electrical wiring be connected to the appliance?
As per the manufacturer’s instructions, ensuring that the electrical supply matches the appliance’s requirements.
What is the purpose of vibration isolation hangers?
To prevent the transmission of vibration to the building structure
Vibration isolation hangers are used with suspended piping and equipment.
Which type of hanger is designed to isolate high frequency vibrations?
Neoprene hangers
Neoprene hangers are specifically meant for high frequency vibration isolation.
Which type of hanger is designed to isolate low frequency vibrations?
Spring hangers
Spring hangers are intended for low frequency vibration isolation.
What is the best option for isolating both low and high frequency vibrations?
Ceiling mounted hangers with a combination of elastomer and spring elements
This combination effectively addresses both frequency types.
What type of support systems are used for mounting rooftop mechanical equipment?
Rugged, structural tubular steel support systems
These systems help prevent noise and vibration from entering the building.
What is the function of a flexible duct connector?
To isolate equipment noise and vibration from the ductwork
Flexible duct connectors consist of fabric secured to sheet metal.
According to the rule of thumb, where should HVAC be placed if cooling is the priority?
In the attic with ducting and vents in the ceiling
This placement enhances cooling efficiency.
If heating is prioritized, where should the HVAC and vents be placed?
In or below the floor
This placement is more effective for heating.
True or False: Floor venting is typically possible in commercial or industrial settings.
False
Floor venting is unlikely to be feasible in such settings.
What are the two main types of air coils used in commercial settings for heating and cooling?
Separate air coils for heating and cooling
This configuration removes the need for zoning a ductwork system.
What are dampers used for in a ductwork distribution system?
To balance the airflow
Dampers are installed at the ends of each branch for easy access.
Fill in the blank: The method for balancing the ductwork system begins with measuring the _______.
airflow
Accurate measurements are crucial for proper balancing.
What is the purpose of high-pressure pumps in a fog humidification installation?
To create fog droplets for humidification
This is a typical component of an Air Handling Unit (AHU).
What does a direct steam injection humidifier do?
Leaves steam in an all-vapor state through distribution tubes
The steam mixes with the air stream for humidification.
What is the function of a steam-to-steam humidifier?
Uses a heat exchanger to separate steam from the boiler from the steam entering the air stream
This avoids concerns with treated boiler water.
What type of humidifier uses electrodes to pass electricity through water?
Electric steam humidifiers
These require careful water quality management.
Gas-fired steam humidifiers heat water using what medium?
Ionic beds of fibrous mediums
This method reduces cleaning frequency.
What is the principle behind evaporative humidifiers?
Air passes over media while water trickles down, cooling and increasing humidity
They can be installed in air handlers or ductwork.
What type of sensors ensure humidity does not exceed a maximum level?
High limit sensors
These are essential for maintaining safe humidity levels.
What is the purpose of placing filters at an angle in air heaters?
To optimize airflow by increasing filter media surface area
This design allows for more air volume to pass through.
What does a duct heater exemplify?
A heat exchanger
Heat exchangers are crucial in HVAC systems.
What is an important consideration for condensate management in industrial air heaters?
Designing an efficient drainage system
This involves appropriately sized drainpipes and traps.
What should be installed at specific areas where condensate accumulates?
Collection points like drain pans or drip legs
These direct condensate towards the drainage system.
What is one method to treat condensate before discharge?
Installing a neutralizing tank
This helps comply with environmental regulations.
