Block1 - Installation of ICI Air Heating Appliances

Question 1

What is the first step in installing an ICI air heating appliance?

Answer 1

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.

Question 2

What types of ICI air heating appliances are mentioned?

Answer 2

• Furnaces
• Process burners
• Air driers
• Kilns
• Paint driers
• Food processing
• Direct-fired make-up air heaters
• Indirect make-up air heaters
• Atmosphere generators

Question 3

True or False: An industrial furnace operates similarly to a domestic furnace.

Answer 3

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.

Question 4

What should be consulted for the installation of any gas-fired appliance?

Answer 4

The manufacturer’s documentation.

Question 5

What is a key feature of direct-fired kilns?

Answer 5

The hot gases of combustion are released directly inside the kiln.

Question 6

Fill in the blank: A conventional kiln uses _______ into the kiln through pipes and radiates heat into the kiln’s atmosphere.

Answer 6

steam flow

Question 7

What is the purpose of a gas pressure regulator in the installation of ICI air heating appliances?

Answer 7

To ensure the gas pressure supplied to the appliance is within the required range.

Question 8

What types of paint dryers are mentioned?

Answer 8

• Powder coating booths
• Spray booths

Question 9

What is a significant difference between direct-fired and indirect-fired make-up air heaters?

Answer 9

Indirect-fired heaters require the installation of a flue vent on the exit of the unit’s heat exchanger flue passages.

Question 10

What must be done before installing an ICI air heating appliance?

Answer 10

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.

Question 11

What is the function of vibration isolation in ICI air heaters?

Answer 11

To prevent vibration transmission and keep vibration energy from entering an object.

Question 12

List the types of vibration isolation mounts mentioned.

Answer 12

• Wire rope isolators
• Spring mount vibration isolators
• Vibration isolation pad mounts
• Seismic mounts
• Ceiling mounted vibration isolation hangers
• Roof mounted vibration isolators

Question 13

True or False: Seismic restraint systems must be designed and installed by a qualified professional.

Answer 13

True.

Question 14

What are the two stages of a spray booth for vehicles?

Answer 14

• Spray stage
• Baking stage

Question 15

What is the purpose of the control system in air heating kilns?

Answer 15

To monitor and regulate the kiln’s temperature, humidity, and airflow.

Question 16

Fill in the blank: The installation of a food processing dryer depends on whether it uses _______ or indirect-fired burners.

Answer 16

direct-fired

Question 17

What should be done if damage is found upon inspecting the shipment of an appliance?

Answer 17

Take pictures of any visible damage for reference and report any damage to the delivery carrier.

Question 18

What is an important aspect of the installation process for direct-fired make-up air units?

Answer 18

Considerations include unit location, structural support, rigging, ducting sizing, and gas piping installation.

Question 19

What types of atmosphere generators are commonly used in heat-treating?

Answer 19

• Exothermic
• Endothermic

Question 20

What document outlines the seismic design standards in Canada?

Answer 20

National Building Code of Canada (NBCC) and Canadian Standards Association (CSA) Standard S832.

Question 21

How should the electrical wiring be connected to the appliance?

Answer 21

As per the manufacturer’s instructions, ensuring that the electrical supply matches the appliance’s requirements.

Question 22

What is the purpose of vibration isolation hangers?

Answer 22

To prevent the transmission of vibration to the building structure

Vibration isolation hangers are used with suspended piping and equipment.

Question 23

Which type of hanger is designed to isolate high frequency vibrations?

Answer 23

Neoprene hangers

Neoprene hangers are specifically meant for high frequency vibration isolation.

Question 24

Which type of hanger is designed to isolate low frequency vibrations?

Answer 24

Spring hangers

Spring hangers are intended for low frequency vibration isolation.

Question 25

What is the best option for isolating both low and high frequency vibrations?

Answer 25

Ceiling mounted hangers with a combination of elastomer and spring elements ## Footnote This combination effectively addresses both frequency types.

Question 26

What type of support systems are used for mounting rooftop mechanical equipment?

Answer 26

Rugged, structural tubular steel support systems ## Footnote These systems help prevent noise and vibration from entering the building.

Question 27

What is the function of a flexible duct connector?

Answer 27

To isolate equipment noise and vibration from the ductwork ## Footnote Flexible duct connectors consist of fabric secured to sheet metal.

Question 28

According to the rule of thumb, where should HVAC be placed if cooling is the priority?

Answer 28

In the attic with ducting and vents in the ceiling ## Footnote This placement enhances cooling efficiency.

Question 29

If heating is prioritized, where should the HVAC and vents be placed?

Answer 29

In or below the floor ## Footnote This placement is more effective for heating.

Question 30

True or False: Floor venting is typically possible in commercial or industrial settings.

Answer 30

False ## Footnote Floor venting is unlikely to be feasible in such settings.

Question 31

What are the two main types of air coils used in commercial settings for heating and cooling?

Answer 31

Separate air coils for heating and cooling ## Footnote This configuration removes the need for zoning a ductwork system.

Question 32

What are dampers used for in a ductwork distribution system?

Answer 32

To balance the airflow ## Footnote Dampers are installed at the ends of each branch for easy access.

Question 33

Fill in the blank: The method for balancing the ductwork system begins with measuring the _______.

Answer 33

airflow ## Footnote Accurate measurements are crucial for proper balancing.

Question 34

What is the purpose of high-pressure pumps in a fog humidification installation?

Answer 34

To create fog droplets for humidification ## Footnote This is a typical component of an Air Handling Unit (AHU).

Question 35

What does a direct steam injection humidifier do?

Answer 35

Leaves steam in an all-vapor state through distribution tubes ## Footnote The steam mixes with the air stream for humidification.

Question 36

What is the function of a steam-to-steam humidifier?

Answer 36

Uses a heat exchanger to separate steam from the boiler from the steam entering the air stream ## Footnote This avoids concerns with treated boiler water.

Question 37

What type of humidifier uses electrodes to pass electricity through water?

Answer 37

Electric steam humidifiers ## Footnote These require careful water quality management.

Question 38

Gas-fired steam humidifiers heat water using what medium?

Answer 38

Ionic beds of fibrous mediums ## Footnote This method reduces cleaning frequency.

Question 39

What is the principle behind evaporative humidifiers?

Answer 39

Air passes over media while water trickles down, cooling and increasing humidity ## Footnote They can be installed in air handlers or ductwork.

Question 40

What type of sensors ensure humidity does not exceed a maximum level?

Answer 40

High limit sensors ## Footnote These are essential for maintaining safe humidity levels.

Question 41

What is the purpose of placing filters at an angle in air heaters?

Answer 41

To optimize airflow by increasing filter media surface area ## Footnote This design allows for more air volume to pass through.

Question 42

What does a duct heater exemplify?

Answer 42

A heat exchanger ## Footnote Heat exchangers are crucial in HVAC systems.

Question 43

What is an important consideration for condensate management in industrial air heaters?

Answer 43

Designing an efficient drainage system ## Footnote This involves appropriately sized drainpipes and traps.

Question 44

What should be installed at specific areas where condensate accumulates?

Answer 44

Collection points like drain pans or drip legs ## Footnote These direct condensate towards the drainage system.

Question 45

What is one method to treat condensate before discharge?

Answer 45

Installing a neutralizing tank ## Footnote This helps comply with environmental regulations.