Download A.O. Smith One Heater One Pump Cert-Temp 80 with or w/o IID System Technical Documents
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WIRING DIAGRAMS ZA. (0), SIVA MH] CER-TEMP 80 — ONE UNIT HW-120M AND HW-160M WITH OR WITHOUT IID SYSTEM WITHOUT THERMAL BALANCER BK TEMPERATURE CIRCULATING | y CONTROL PUMP | ÿ | BK Je 120 VAC Li L2 HOT NEUTRAL FUSED EN 4 X 4 JUNCTION BOX DISCONNECT WITH TERMINAL SWITCH ® ? STRIP (OPTIONAL) | | À. O. SMITH ND. 55202 | | = == = FIELD WIRED BK, | W TANK — FACTORY WIRED | "TERMINAL RED AND YELLOW FLOW CLOSES CIRCUIT Y W HW-200M THRU 670 STANDING PILOT AND IID SYSTEMS AND THERMAL BALANCER 120 VAC 50/40 Hz Ly(HOD, L(NEUTRAL) 4 x 4 JUNCTION BOX FUSED WITH TERMINAL STRIP a aa АНОННЕ > * CONNECT TO WHITE TRANSFORMER WIRE. RMC ALT - nz ++ CONNECT To WHITE GAS VALVE WIRE. | CIRCULATING THERMAL ; PUMP ® BALANCER | « CONNECT TO BLACK TRANSFORMER WIRE. (GND.) | o р г — +: CONNECT TO YELLOW WIRE. FROM A | |3 LIMIT CONTROL DEVICE. Co ed TT TT TT | В STANDING PILOT i i TANK | **LLD. SYSTEM | TEMPERATURE | | , CONTRO ---- — — — FIELD WIRED l I | naaa J { + SAFETY FLOW SWITCH — FACTORY WIRED L | A.OS. NO. 78168 Revised August 1996 (Reviewed October 1998) A 055.0 WIRING DIAGRAMS CER-TEMP 80 — TWO UNITS HW-200M THRU WITH IID SYSTEM (ONE PUMP) 120 VAC 50/60 Hz L4(HOT), Lo(NEUTRAL) 4x 4 JUNCTION BOX WITH TERMINAL STRIP e e « CONNECT TO WHITE TRANSFORMER WIRE. — ZZ = CONNECT TC WHITE GAS VALVE WIRE. | CIRCULATING RMAL SEE RESPECTIVE UNIT DIAGRAM PUMP Q ———— BALANCER UNIT #1 ror FACTORY INSTALLED WIRING. | — « CONNECT Tô BLACK TRANSFORMER WIRE. (GND.) | a FE «+ CONNECT TG YELLOW WIRE. FROM A | | ; LIMIT CONTROL DEVICE. — о = — -— u | | PT | TANK I | TEMPERATURE 1. y 1010 — — — — FIELD WIRED | | ONTRO Ny | po 13 FACTORY WIRED | 1 | 1 Loc. LQ 0 L+4+- lO + SAFETY FLOW SWITCH | | La A.O.S. NO. T8168 NOTE: = — — = = = — = = = = = = = = — — —— у) DISCONNECT THE THERMAL г Г BALANCER ON UNIT #2. | I I | OO 4x4 JUNCTION BOX ı | 1 WITH TERMINAL STRIP | | poo _ + CONNECT TO WHITE TRANSFORMER WIRE. | | | | +» CONNECT TO WHITE GAS VALVE WIRE. | |! ое a | THERMAL UNIT #2 SEE RESPECTIVE UNIT DIAGRAM UN ~ + - — -| WI BALANCER FOR FACTORY INSTALLED WIRING. Q a (DISCONNECTED) I ~ e—e + - — —| =“ > 2 ~—> - CONNECT ТО BLACK TRANSFORMER WIRE. sai ° 1 «TT —— —| ФВ = CONNECT TO YELLOW WIRE. FROM ~ —_ + - — --B | LIMIT CONTROL DEVICE. e Ir | ——— | * STANDING PILOT | a + SAFETY FLOW SWITCH A.O.S. NO. 78168 + RED & YELLOW TERMINALS: FLOW CLOSES CIRCUIT. [2\a (0)e SIMA] HW-670 > 1.1.D. SYSTEM A) A 056.0 O A. O. Smith Corp., 1996 Printed in U.S.A.