aci TUCH Installation And Operation Instructions Manual
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Installation and Operation InstructionsACI/TUCH Room UnitGENERAL INFORMATION WIRING INSTRUCTIONSThe ACI/TUCH Room Unit is factory-configured tosupport your specific requirements.The number of wires needed to connect the ACI/TUCHRoom Unit to a controller depends on the application.Most applications require five wires to support thetemperature output, the set point output, the RH output,power, and ground (common); although someapplications will require additional wires. All signalsare common ground referenced. ACI recommends 16-22 AWG twisted pair wires or shielded cable for allsensor installations. Be sure to connect the cableshield to the ground at the controller ONLY.CAUTION• CHECK THAT THE ACI/TUCH ROOM UNIT ISCORRECTLY CONFIGURED FOR THEAPPLICATION; CONTACT ACI IF YOU AREUNSURE.• THE ACI/TUCH ROOM UNIT IS A PRECISIONINSTRUMENT; PLEASE HANDLE IT WITHCARE! WIRING DIAGRAMRH/FANRH signal to controller.OFBOccupied feedback signal from controller.COM (-)Ground or signal common, 20-28Vac (-).POWER (+)+15 to +30VDC, or 20-28Vac (+). See notes.SENTemperature sensor signal to controller.SETSet point temperature signal to controller.OROverride signal to controller. See notes.AUXAuxiliary signal to/from controller. See notes.MOUNTING INSTRUCTIONSSeparate the cover from the base. Attach the basedirectly to drywall, or to a standard 2” x 4” junction boxusing the mounting hardware provided. Refer to thewiring instructions to make the necessary connections.After wiring, attach the cover to the base and turn the(2) hex-screws at the bottom of the base until the covercannot be removed.WARNING• REMOVE POWER BEFORE WIRING! NEVERCONNECT OR DISCONNECT WIRING WITHPOWER APPLIED. DO NOT ALLOW LIVEWIRES TO TOUCH THE CIRCUIT BOARD!CAUTION• WIRING MUST COMPLY WITH APPLICABLELOCAL AND NATIONAL ELECTRICALREGULATIONS.NOTES:1. The OR signal can be factory configured to short the SEN or SET terminalsto COM(-) to eliminate the need for a wire jumper between terminals OR andSEN or SET outputs.• DO NOT RUN THE ACI/TUCH ROOM UNITWIRING IN ANY CONDUIT WITH MAINSPOWER SYSTEM WIRING.2. If the ACI/TUCH Room Unit has any output configured as 0-10V or 2-10V,the voltage at the POWER(+) terminal must be at least +18VDC.3. The AUX output/input is normally not used. For special applications, theAUX output/input can be factory configured to support various functions.• ACI RECOMMENDS USING A SEPARATE UL-LISTED CLASS 2 TRANSFORMER WHENPOWERING THE ACI/TUCH ROOM UNITWITH 24VAC! FAILURE TO WIRE DEVICESWITH THE CORRECT POLARITY WHENUSING A SHARED TRANSFORMER MAYRESULT IN DAMAGE TO ANY DEVICEPOWERED BY THE SHARED TRANSFORMER.2305 Pleasant View Rd. ● Middleton Industrial Park ● Middleton, WI 53562PHONE (608) 831-2585 ● FAX (608) 831-7407I0000493 REV 1 06/09/2008 Page 1 of 2 |
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