State manuals are published on statewaterheaters.com (operates under AO Smith corporate). Printed manuals ship in the box.
Where to download
- statewaterheaters.com — search by model number; download Installation & Operation Manual plus Owner Manual
- State customer service — 1-800-365-0024 emails manuals within hours
- AO Smith hotwater.com — some State manuals are cross-listed
Documents by line
- ProLine atmospheric gas — model-specific (GS6 series)
- ProLine XE — high-efficiency variant (GS6-XEVIT / XPDV)
- ProLine Power Vent — separate manual for FRBVIT series
- ProLine electric (ES6 series)
- Premier Hybrid — separate manual for HPX heat pump series
- Sandblaster commercial — commercial install manual with code references
Bottom line
Always use the model-specific Installation Manual. For Premier Hybrid heat pump installs, the manual's air-space and condensate requirements are mandatory reference.