A.O. Smith ***81-199 Specifications download pdf (Page 15)

DANGER

TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT

FIXTURES. SEE WATER TEMPERATURE CONTROL SECTION ON PAGE 17 & 19.

IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE

BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED

TO FIXTURES.

ONE OR TWO TEMPERATURE - ONE HEATER MEDIUM TEMPERATURE STORAGE

WITH RECIRCULATED LOOP

(FOR STORAGE OR INSTANTANEOUS HEATERS ONLY)

CAUTION: IF BUILDING COLD WATER SUPPLY HAS A BACK-FLOW

PREVENTER, CHECK VALVE OR WATER METER WITH CHECK VALVE,

PROVISIONS FOR THERMAL EXPANSION OF WATER IN THE HOT WATER

SYSTEM MUST BE PROVIDED.

NOTE:IF TEMPERED WATER IS RECIRCULATED, RETURN LINE SHOULD BE

CONNECTED AT POINT “A”.

NOTE:STORED TEMPERATURE WATER LOOP, IF USED, CONNECT TO COLD

WATER INLET.

NOTES

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A.O. Smith ***81-199 Specifications Page 15