Pressure Testing Gas Supply Piping System
Note: The appliance and its appliance main valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi. (3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi. (3.5 kPa).
Test Pressures In Excess of 1/2 PSIG (3.5 kPa)
1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping systems. Pressures in excess of 1/2 psig (3.5 kPa) will damage burner system gas regulator.
2.Cap off open end of gas pipe where equipment shutoff valve was connected.
3.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas burner system or opening main gas valve located on or near gas meter for natural gas burner system, or using compressed air.
4.Check all joints of gas supply piping system. Apply commercial leak test solution to all gas joints. Bubbles forming show a leak. Correct all leaks at once.
5.Reconnect burner system and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve.
2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas burner system or opening main gas valve located on or near gas meter for natural gas burner system, or using compressed air.
3.Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 34, page 17 for propane/LP or Figure 35, page 17 for natural). Apply commercial leak test solution to all gas joints. Bubbles forming show a leak. Correct all leaks at once.
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| CSA/AGA Design- |
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| Certified Equipment |
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| Shutoff Valve With |
Union |
| 1/8" NPT Tap |
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| Gas Control |
| LP | NATURAL |
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PRESSURE: | 10.0" W.C. | 3.5" W.C. |
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*MIN. INLET | 11.0" W.C. | 4" W.C. |
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MAX. INLET | 13.0" W.C. | 10.5" W.C. | OPEN |
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| EQUIPMENT | |
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| SHUTOFF | |
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| VALVE |
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| CLOSED |
FIGURE 13 | EQUIPMENT SHUTOFF VALVE |
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Page 17