A.O. Smith ATX-199 Instruction Manual page 51

FLAMMABLES
1.
2.
3.
4.
vapors.
1.
2.
3.
4.
5.
6.
Shutoff Devices for Hot Water Supply System, ANSI Z21.22 • CSA 4.4
DANGER
Read and follow water heater warnings and instructions. If the owner's
manual is missing, contact the retailer or manufacturer.
Vapors:
1. Cannot be seen.
2. Are heavier than air.
3.
4.
DANGER
51
Relief Valve and Automatic Gas
HOT
HOT
BURN