Form No. 43539049
Oct 2013
–15–
7. It is strongly recommended that a field installed manual shut-off valve be installed in the gas piping to
each brooder. This will allow service of individual brooders without having to shut down the entire gas
supply system. When installing the gas line, it is recommended to connect a sediment trap (shown
below) in the gas line at a point before the gas line enters the house. This trap or “drip leg” acts to trap
impurities and water that can condense out of the gas. It helps to keep impurities from entering the
appliance and causing potential damage to gas valves, etc. Periodically remove the cap from the drip leg
and drain any accumulation of dirt and/or water.
FIGURE 8
8. After all gas connections and adjustments are made, check all gas connections for leaks (not just the gas
connections at the brooders) using a heavy soap suds solution or by using one of the methods listed in
Appendix D of the National Fuel Gas Code.
WARNING: DO NOT USE AN OPEN FLAME OF ANY KIND TO
TEST FOR LEAKS!
9. It is recommended that a pressure gauge be installed at the end of the gas piping run to allow you to
check the gas supply pressure in the system. This needs to be capable of accurately measuring in units
of inches of water column or mbar.
7A
INSTRUCTIONS FOR TESTING FOR GAS LEAKS AND PROPER GAS PRESSURE
WARN ING: DO NOT OMIT THESE TESTS
!
TESTING THE INSTALLATION FOR GAS LEAKS:
1. Inspect all connections and appliance valves to be sure connections are wrench-tight and that all
appliance valves are closed, including the pilot valves.
2. Connect a low-pressure test set to the low pressure piping system just upstream of the appliance
regulators and control. NOTE: A dry gauge manometer is available as an accessory (Part No.
43649000).
3. Fully open the LP gas container valve slowly to pressurize the piping system. Once the system is
pressurized and stabilized, close the container valve tightly.
4. Observe the indicated pressure on the low-pressure test set gauge. This reading should be approximately
equivalent to the set delivery pressure of the final stage regulator. Now, slowly open one burner valve or
pilot valve on the appliance to vent off just enough gas to reduce the pressure on the test gauge by 1”
water column, then close the burner or pilot valve.
If the pressure remains unchanged on the gauge for at least 10 minutes, the system can be assumed leak-
tight. If a drop in pressure does occur, it indicates a leak in the system.
If the pressure drop occurs, check the joints, connectors, and other possible points of leakage with an
approved, high quality leak detection solution. NEVER USE A MATCH OR OPEN FLAME TO CHECK FOR LEAKS.
Once a leak has been located and repaired, repeat Steps 3 and 4. If there is an increase in pressure, it
indicates that the LP gas container valve is not shut off tightly. Shut off the valve tightly and repeat Step 4.
