Above Floor Installation Guide
J.Pressure Test the Finished Tubing Installation
1.After all tubing has been routed and connected to the manifold, pressure test all tubing circuits before finished flooring is installed. Refer to AlumiPex Manifold Instructions.
2.Isolate the AlumiPex manifolds and tubing from any other piping.
3.Attach a pressure gauge with a 150 psig scale range to the manifold using a high pressure hose.
•Locate the gauge so it can be read during all phases of construction.
4.Fill the system for pressure test with water only if there is no freeze potential.
•You will need to keep the system pressurized as discussed in the next section.
•So the fluid used for testing would have to remain in place.
•You must be sure, if using water, that no freeze potential would exist from time of installing pipe until time for you to complete the system piping and fill the system for
5.If there is freeze potential, fill the system with air and perform the pressure test using air.
•If using air, remove all air vents from the manifolds and plug the openings.
6.Pressurize the system to between 70 and 100 psig for 30 minutes.
a.Observe the pressure on the gauge.
b.The pressure should not drop unless testing with air on a cold day.
•On cold days, air pressure testing will show a drop as the air in the tubing cools off. But the pressure should reach a steady level and drop no further.
•If the pressure does drop, check the connections at the manifolds first.
c.Examine the system for leaks. Repair any leaks found and repeat the test.
d.Check threaded joints with leak detection fluid (soap mixture if using air).
When pressure testing with air, or when air is left anywhere in the system being pressurized, there is a risk of explosive discharge of compressed air or water if a leak or break occurs.
Do not leave these pressure tests unattended while others are present.
Remove all
Failure to follow these guidelines could lead to severe personal injury, death or substantial property damage.
Failure to check for and repair leaks can result in damage to system components and the premises, causing severe personal injury, death or substantial property damage.
Part Number | 17 |
