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TYPICAL WIRING DIAGRAM FOR
FOUR BOILER LINEAR-TEMP*
INSTALLATION
HW-300 THRU 670
TYPICAL WIRING DIAGRAM FOR A
FOUR BOILER LINEAR-TEMP
INSTALLATION WITH OUTDOOR
RESET CONTROLLING. PRIMARY
CIRCULATOR CONTROLLED BY
OTHER MEANS.
A.O. SMITH ELECTRONIC
SEQUENCING PANEL CAN BE
APPLIED TO SEQUENCE 4, 6 OR 8
BOILERS WITH OUTDOOR RESET.
*TRADEMARK, A.O. SMITH CORP.
Revised October 1995 (Reviewed June 2000)
© A. O. Smith Corp. 1995
Printed in the U.S.A.
E 124.1