LPG cylinder systems

LPG cylinder systems

​Self Check #1

Multiple Choice

How many bottles would be needed for an installation of 400 Mj/hr

• 4

• 2

• 8

• 1

Open Ended

Give a suitable location where a cylinder safety valve may discharge

Multiple Choice

What is the maximum length of a pigtail?

• 600mm

• 1200mm

• 1000mm

• 950mm

Multiple Choice

Where the 1st & 2nd stage regulators are separate items, what must be fitted.

• A vent

• A valve

• A condensate trap

• A heat trap

Multiple Choice

Are chain restraints required for a cylinder capacity lower than 25 liters

• No

• Yes

• Yes, only if a vaporiser is fitted

Multiple Select

Where should an excess flow valve be fitted

• In the cylinder valve

• Next to the regulator

• Integral of the POL fitting

• Upstream of the piping or hose assembly

​Note: Some appendix numbers have changed because of updated codes

​Self check # 2

​Please answer the following

Multiple Choice

Can an LPG cylinder be stored in a boat or caravan

• Yes

• No

Multiple Choice

What is the approximate volume (water capacity) of a 9kg cylinder

• 9 ltrs

• 90 ltrs

• 22 ltrs

• 18 ltrs

Multiple Choice

What is the vapourising capacity of a 45kg cylinder with an ambient temperature of 16*C

• 320 Mjh

• 188 Mjh

• 45 Mjh

• 246 Mjh

Multiple Select

Select the types of piping that can be used for the high side piping of an LPG system in caravans or boats

Multiple Choice

Which Appendix covers LP gas cylinder llocations

• A

• D

• J

• G

Multiple Choice

What is the volume in liters for a 25 mtr 32mm polyethylene pipeline

• 32

• 13

• 0.52

• 5.2

Multiple Choice

According to NZS5807 what is the colour code for gas pipe

• Yellow

• Yellow diagonal stripes

• BSO8C35

• Buff yellow BSO5807

Multiple Choice

Other than air what other gas can be used for safely purging an installation

• Oxygen

• LPG

• Nitrogen

• Argon

​Commissioning

• ​Copy the checklist of the one in NZS 5601

• ​You can also use the manufacturers commission sheet if it is available

• You may use these checklists in the workshop

• Or you can use the ICE generic one

​When commissioning always use the data badge on the appliance or the rating plate to confirm the correct operating pressures and gas type

​One method of eliminating corrosion is by fitting "Cathodic" protection

​Self Check # 3

​Please complete

Multiple Choice

Which legislative document covers gas safety and measurement

• Gas Act

• PGD Board

• GSMR 2010

• AS/NZS5601

Multiple Choice

AS/NZS 5601: What is the next step after observing the operation of safety and operational devices 

• Handover to the customer

• Test for soundness

• Test that no spillage occurs

• Test the burners work properly

Multiple Select

What three documents should you hand over to the customer

• Gas Cert

• The bill

• Manufacturers instructions

• PS3

• Electrical certificate

​Well Done !

​Thank you for completing this quiz