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Gas A Level 2 > Block1 - Installation of ICI Air Heating Appliances > Flashcards

Block1 - Installation of ICI Air Heating Appliances Flashcards

1
Q

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

A

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.

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2
Q

What types of ICI air heating appliances are mentioned?

A
  • Furnaces
  • Process burners
  • Air driers
  • Kilns
  • Paint driers
  • Food processing
  • Direct-fired make-up air heaters
  • Indirect make-up air heaters
  • Atmosphere generators
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3
Q

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

A

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.

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4
Q

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

A

The manufacturer’s documentation.

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5
Q

What is a key feature of direct-fired kilns?

A

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

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6
Q

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

A

steam flow

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7
Q

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

A

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

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8
Q

What types of paint dryers are mentioned?

A
  • Powder coating booths
  • Spray booths
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9
Q

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

A

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

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10
Q

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

A

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.

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11
Q

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

A

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

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12
Q

List the types of vibration isolation mounts mentioned.

A
  • Wire rope isolators
  • Spring mount vibration isolators
  • Vibration isolation pad mounts
  • Seismic mounts
  • Ceiling mounted vibration isolation hangers
  • Roof mounted vibration isolators
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13
Q

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

A

True.

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14
Q

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

A
  • Spray stage
  • Baking stage
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15
Q

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

A

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

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16
Q

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

A

direct-fired

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17
Q

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

A

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

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18
Q

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

A

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

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19
Q

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

A
  • Exothermic
  • Endothermic
20
Q

What document outlines the seismic design standards in Canada?

A

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

21
Q

How should the electrical wiring be connected to the appliance?

A

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

22
Q

What is the purpose of vibration isolation hangers?

A

To prevent the transmission of vibration to the building structure

Vibration isolation hangers are used with suspended piping and equipment.

23
Q

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

A

Neoprene hangers

Neoprene hangers are specifically meant for high frequency vibration isolation.

24
Q

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

A

Spring hangers

Spring hangers are intended for low frequency vibration isolation.

25
Q

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

A

Ceiling mounted hangers with a combination of elastomer and spring elements

This combination effectively addresses both frequency types.

26
Q

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

A

Rugged, structural tubular steel support systems

These systems help prevent noise and vibration from entering the building.

27
Q

What is the function of a flexible duct connector?

A

To isolate equipment noise and vibration from the ductwork

Flexible duct connectors consist of fabric secured to sheet metal.

28
Q

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

A

In the attic with ducting and vents in the ceiling

This placement enhances cooling efficiency.

29
Q

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

A

In or below the floor

This placement is more effective for heating.

30
Q

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

A

False

Floor venting is unlikely to be feasible in such settings.

31
Q

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

A

Separate air coils for heating and cooling

This configuration removes the need for zoning a ductwork system.

32
Q

What are dampers used for in a ductwork distribution system?

A

To balance the airflow

Dampers are installed at the ends of each branch for easy access.

33
Q

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

A

airflow

Accurate measurements are crucial for proper balancing.

34
Q

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

A

To create fog droplets for humidification

This is a typical component of an Air Handling Unit (AHU).

35
Q

What does a direct steam injection humidifier do?

A

Leaves steam in an all-vapor state through distribution tubes

The steam mixes with the air stream for humidification.

36
Q

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

A

Uses a heat exchanger to separate steam from the boiler from the steam entering the air stream

This avoids concerns with treated boiler water.

37
Q

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

A

Electric steam humidifiers

These require careful water quality management.

38
Q

Gas-fired steam humidifiers heat water using what medium?

A

Ionic beds of fibrous mediums

This method reduces cleaning frequency.

39
Q

What is the principle behind evaporative humidifiers?

A

Air passes over media while water trickles down, cooling and increasing humidity

They can be installed in air handlers or ductwork.

40
Q

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

A

High limit sensors

These are essential for maintaining safe humidity levels.

41
Q

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

A

To optimize airflow by increasing filter media surface area

This design allows for more air volume to pass through.

42
Q

What does a duct heater exemplify?

A

A heat exchanger

Heat exchangers are crucial in HVAC systems.

43
Q

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

A

Designing an efficient drainage system

This involves appropriately sized drainpipes and traps.

44
Q

What should be installed at specific areas where condensate accumulates?

A

Collection points like drain pans or drip legs

These direct condensate towards the drainage system.

45
Q

What is one method to treat condensate before discharge?

A

Installing a neutralizing tank

This helps comply with environmental regulations.

Gas A Level 2 (22 decks)

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