A.O. Smith COF-199 manual Installation Diagrams, Inset B, Inset a

INSTALLATION DIAGRAMS

ONE TEMPERATURE - ONE HEATER VERTICAL STORAGE TANK FORCED

CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION

SCALD PREVENTION

HOT WATER CAN SCALD IF USED

CARELESSLY OR IN UNANTICIPATED

MANNER.

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: CONNECT RETURN LINE FROM HOT WATER CIRCULATING LOOP (IF USED) TO COLD WATER INLET LINE.

NOTE:

WHEN USING A A.O.Smith T-140,200,350,OR 400 STORAGE TANK,

USE LOWER 3/4" OPENING FOR TANK TEMP.CONTROL

ONE TEMPERATURE - ONE HEATER HORIZONTAL STORAGE TANK FORCED

CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATION

INSET B

VACUUM RELIEF VALVE INSTALL PER LOCAL CODES.

DANGER:

TEMPERATURE SETTING SHOULD NOT EXCEED SAFE TEMPERATURES AT FIXTURES. SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 11. IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT, ADD AN ANTI-SCALD VALVE FOR HOT WATER SUPPLIED TO FIXTURES.

INSET A

INSTALL THERMAL EXPANSION

TANK IN COLD WATER SUPPLY LINE,

IF CHECK VALVE OR PRESSURE

REDUCING VALVE IS USED IN

SUPPLY.

	WIRING DIAGRAM FOR HEATER TO TANK LOOP
* PIPE TO OPEN DRAIN	AND /OR HOT WATER LOOP (IF USED)

INSTALL IN ACCORDANCE WITH LOCAL CODES

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