Taco SR501 Wiring Manual

Contents

Taco SR501 Wiring Manual Manual pdf 90 page image

88TACO SR501-845RP REPLACEMENT CROSS-REFERENCEMANUFACTURER MODEL CONNECTIONSTaco SR501-845RP L1 L2 3 4 5 6 R/T W/TArgo AR821 1 2 3 4 5 6 TAR822 L1 L2 3 4 NO 5 6 NO R/T G/TColombus MR10 L1 L2 3 4 NO 5 6 NO R/T G/TErie SR100 L1 L2 3 4 NO 5 6 NO R/T G/THoneywell RA89A 1 2 3 4 T TRA832A 1 2 3 4 X X T TR845A 1 2 3 4 5 6 T TWhite-Rogers 889-189 1 2 3 4 T T829-845 1 2 3 4 5 6 T TFeatures:Universal ReplaceabilityIndicator LightsSnap-in PC Board to Existing EnclosureSimplified WiringFully Enclosed Snap-Out Relay100% Factory TestedUniversal Thermostat CompatibilityUL ApprovedExtended 3 Year WarrantyMade in the USAOperation:Connect a thermostat to the “T T” terminals onthe switching relay. When the thermostat calls forheat, the relay is energized and power is given tothe circulator.Power Input:Connect 120 volt ac power to terminals L1 and L2.Jumper Placement:The jumper is factory installed between terminalsL1 and 3 to switch power on terminal 4.Diagnostics:The Indicator lights show full functionality of theswitching relay. The green light should always beon, indicating that power is connected. When thethermostat calls for heat, both the appropriate cir-culator and red indicating light is energized.The Taco Connection:Combine the reliability of the Taco Zone Valves,Priority Zoning Circulators, Thermostats, and the“00” family of circulators with the advanced featuresof the Taco Zone Controls to achieve total systemintegration. No matter the application, Taco now pro-vides the products to maximize system performancewhile simplifying both installation and service.TypicalWiringAlternativeWiringTO: ZRTO: ZCTHERMOSTATTO: 120 VAC POWERINPUTR WT TL2 L1 3 4 5 6120 VACPOWERT STATUNIVERSAL REPLACEMENT RELAYMODEL: SR501-845RPREPLACES HONEYWELLR845, RA89A & RA832OR COMPARABLE RELAYCIRCULATORTHERMOSTATTO: 120 VAC POWERCIRCULATORTO: TT ON BOILERJUMPERR WT TL2 L1 3 4 5 6120 VACINPUTPOWERT STATUNIVERSAL REPLACEMENT RELAYMODEL: SR501-845RPREPLACES HONEYWELLR845, RA89A & RA832OR COMPARABLE RELAYTerminal Description:T & T Thermostat ConnectionL2 Neutral wire of power inputL1 Hot wire of power input3 Common terminal for 44 Normally open terminal6 Normally open terminal5 Common terminal for 6Specifications:PRODUCT NUMBER TRANSFORMER MAXIMUM DIMENSIONS OF ENCLOSURENUMBER OF ZONES VOLTAGE COMBINED LOAD WIDTH HEIGHT DEPTHSR501-845RP 1 Zone 120 VAC Input 7.2 amps 4 1/4" 5 1/4" 2 3/4"All Switching Relays are relay type DPDT, have a thermostat current of .18, and have a single phasemotor rating per zone of 1/3 hp (7.2A) @ 120 VAC.Instruction SheetSR501-845RP Universal Replacement RelayWarning: Wiring connections must be made in accordance with all applicable elec-trical codes and these instructions. Use copper wire only. Failure to follow thisinstruction can result in personal injury or death and/or property damage. 10-18gauge wire recommended for 120 VAC connections with 9 in.lbs. max torque, 12-22gauge wire for thermostat connections with 9 in.lbs. max torque, and 12-22 gaugewire for 24 VAC source with 5 in.lbs. max torque.Do it Once. Do it Right. ®TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436.Visit our web site at: http://www.taco-hvac.comPrinted in USACopyright 2005TACO, Inc.Note: When using Alternative Wiring diagram, the boiler operating control’sZC terminal will see the load of the circulator(s).Warning: When using Alternative Wiring diagram, wiring instructions mustbe followed so power originates from the boiler aquastat. Failure to followthese wiring instructions may result in a secondary source of power beingconnected to the boiler that may activate it under certain circumstances,causing injury or death.