Raccordements et dispositifs de sécurité
Point critiqueWater heater must have functional T&P relief valve with discharge pipe. Gas water heaters need proper venting. Temperature set to 120°F maximum.
Norme
Water heater must have functional T&P relief valve with discharge pipe. Gas water heaters need proper venting. Temperature set to 120°F maximum.
Comment vérifier
1. Check T&P (temperature & pressure) relief valve — must be installed and not capped or plugged
2. Verify T&P discharge pipe — must run to within 6" of floor or to exterior (never capped)
3. Check temperature setting — 120°F maximum (prevents scalding)
4. For gas: verify proper venting — draft hood, vent connector rising to chimney or direct vent
5. For gas: check for backdrafting — hold match near draft hood with burner running (flame should draw up)
6. Check earthquake straps (required in seismic zones)
7. Verify gas flex connector is properly connected with shut-off valve
8. Check for drip pan if installed above living space
9. Verify clearance from combustible materials (gas units)
Problèmes fréquents
- T&P valve missing or capped (explosion risk — CRITICAL safety issue)
- No discharge pipe on T&P valve
- Temperature set too high (scald risk, especially for children)
- Backdrafting on gas unit (carbon monoxide in living space — DEADLY)
- Missing earthquake straps (unit topples, breaks gas line)
- No shut-off valve on gas line
- Combustible storage too close to gas water heater