GeoThermal

The picture above is a pressure test manifold.
Please note each zone has it's own pressure gauge.
When something goes wrong during the pouring of a concrete floor, 
MSA can see what zone has been affected, thru pressure loss with the system above.

There is alot more to a good pressure test than meets the eye.

Testing Existing systems.

1. Remove all UPONOR lines from the supply side of the manifolds and add pressure to the system draining the      return lines to a floor drain or a bucket if the system is full of glycol.

     (You cannot do an accurate pressure test thru a Uponor manifold.)

2.  Attach all supply lines to the pressure test manifold, and let the return line drain to a floor drain or a bucket  if the system has glycol in it. (As shown above.) 
    
3. Circulate Nitrogen thru the loops in the floor. (This will remove any excess moisture in the lines.)

4. Once you feel you have all the water and glycol out of the system you must cap the return lines.
    (This allows for the pressure test to take place.)

5. Knowing the system design is important. You do not want to over pressurize the loops in the floor.
    If you over pressurize the lines you will fracture your floor.  If you are not sure of the test pressure when             the concrete was poured you must use a low pressure. 20-30 psi.

6. This test must remain on for 24 hours . Just a quick pressure test does not do anything. We are normally looking for small leaks. These leaks normally take a while to come to light. If the system drops with in 5 minutes you know you have a very serious issue.

7. Review the pressures. If they are not at the pressure you charged the system to you have a leak.

Hire MSA to trouble shoot your radiant floor heating system.
MSA can and will show you any short falls that are plauging your system.

Thru the use of a Thermal Imaging Gun we can see the loops as clear as day.
We see the variance in floor temperature.
The above picture clearly shows how poorly the radiant floor system was laid out. 
Note: Most contractors have moved to an 8" spacing with their systems.
None of the radiant lines in this photo are straight, and they exceed 12" in spots. 
The home owners would find this system full of hot and cold spots.
This system is non desirable.

There is no way to fix the above issue, when it is found incased in concrete.

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