Appliance Installation Flashcards
6 cards from real ACS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Appliance Installation flashcards as text
Which British Standard provides guidance on the installation of domestic gas appliances?
Answer: BS 6798 for boilers and BS 5440 for flues and ventilation (with BS 6891 for pipework)
BS 6798 covers the installation and maintenance of domestic gas boilers; BS 5440 covers flues and ventilation; BS 6891 covers internal pipework — engineers must be familiar with all relevant standards.
Before installing a new gas appliance, what must the engineer check regarding the gas supply?
Answer: The available gas pressure, meter capacity, and pipework size to ensure the supply is adequate for the new appliance's gas rate
The engineer must verify that the gas supply pressure is correct, the meter has sufficient capacity, and the existing pipework can deliver the required gas flow rate without inadequate pressure drops.
What is the purpose of an 'appliance service interval'?
Answer: To ensure the appliance continues to operate safely and efficiently, with worn parts replaced before they cause dangerous conditions
Regular servicing maintains safe and efficient operation — it checks combustion performance, heat exchanger integrity, flue performance, and replaces wear items before they create safety hazards.
When installing a gas cooker in a domestic kitchen, what minimum clearances must be maintained?
Answer: Minimum clearances from combustible surfaces as specified in the manufacturer's instructions and BS 6172
Manufacturer's instructions and BS 6172 specify minimum clearances from combustible surfaces above, beside, and behind gas cookers to prevent ignition of adjacent materials.
What does 'commissioning' a gas appliance involve?
Answer: Setting the appliance to operate correctly, verifying gas pressure, checking combustion performance, and handing over to the customer with instructions
Commissioning involves verifying gas supply, setting burner pressure, checking combustion (CO/CO2 ratio), testing controls and safety devices, and instructing the customer on safe operation.
Which document must be left with the customer (or installed on the appliance) after installing a new gas boiler?
Answer: The manufacturer's installation and user instructions, the Gas Safe notification certificate, and the benchmark commissioning record
The customer must receive the manufacturer's user instructions, the Benchmark commissioning record (confirming correct commissioning), and the Building Regulations notification certificate.