Installation and Operation Instructions RH Room Series PLEASE READ INSTRUCTIONS CAREFULLY BEFORE INSTALLATION! AUTOMATION COMPONENTS, INC Version : 4.0 2305 Pleasant View Road Page 1 of 4 I0000545 Middleton, Wisconsin 53562 (888) 967-5224 www.workaci.com GENERAL INFORMATION The RH Room transmitter is a Relative Humidity transmitter that can be powered with either an AC or DC supply voltage. The transmitter can also include an optional temperature sensor for monitoring the space temperature. All units are shipped from the factory set up with a 4-20 mA output. The RH Room transmitter is field selectable with a 4-20 mA, 0-5 VDC, or 0-10 VDC output signal that is equivalent to 0 to 100% RH. MOUNTING INSTRUCTIONS Separate the cover from the base. Attach the base directly to the wall or to a standard 2” x 4” junction box. Refer to the wiring instructions to make necessary connections. After wiring, attach the cover to the base by snapping the top of the cover on first and then the bottom. WIRING INSTRUCTIONS 16 to 22 AWG shielded cable is recommended for all RH Transmitters. Twisted pair may be used for 2-wire current output transmitters. If using 24 VAC power, two separate wires must be pulled for the transmitter to work properly; one 16 to 22 AWG shielded cable for the supply voltage, and a second 16 to 22 AWG shielded cable for the selected output(s). Signal wiring must be run separate from high voltage wires (120-Volt). Refer to Figure #2 for RH wiring diagrams. Refer to Figure #5 for optional temperature sensor wiring diagrams. Caution: It is recommended that you use an isolated UL-listed Class 2 transformer when powering the unit with 24 VAC. Failure to wire the devices with the correct polarity when sharing transformers may result in damage to any device powered by the shared transformer. Remove power before wiring. Never connect or disconnect wiring with power applied. When using shielded cable, ground the shield only at the controller end. Grounding both ends can cause a ground loop. Figure #2 Figure #187651324ON2431ONWireConnectionsTemperatureSwitch OptionsFactoryuse onlyRH SwitchOptionsSupply Ground / Signal Common0-10 or 0-5 VDC Output SignalAC or DC Supply VoltageSupply Ground / Signal Common4-20 mA OutputDC Supply Voltage4-20 mA OutputAC or DC Supply VoltageVoltage Output Signal2 Wire Current Output Signal3 Wire Current Output Signal4-20mA VIN COM VOUT4-20mA VIN COM VOUT 4-20mA VIN COM VOUT AUTOMATION COMPONENTS, INC Version : 4.0 2305 Pleasant View Road Page 2 of 4 I0000545 Middleton, Wisconsin 53562 (888) 967-5224 www.workaci.com OUTPUT SELECTIONS Switches 6, 7, and 8 are used to set the RH output signal. Refer to Figure #3 for switch settings. Figure #3 REVERSE ACTING OUTPUT The output can be changed to reverse acting mode. The output range stays the same but the corresponding RH value is opposite. Example: Direct Acting (DA) 0-10V output mode, 0V = 0% RH and 10V = 100% RH Reverse Acting (RA) 0-10V output mode, 0V = 100% and 10V = 0% To change the transmitter to reverse acting or back to direct acting, set switch 4 ON to put the unit in setup mode. After switch 4 is on, switch 2 will put the unit in direct/reverse acting mode. When switch 2 is set to ON, the output can be used to show if the unit is in direct or reverse acting mode. For direct acting the output will be 1V for 0-5V, 2V for 0-10V, and 7.2mA for 4-20mA. For reverse acting the output will be 4V for 0-5V, 8V for 0-10V, and 16.8mA for 4-20mA. With switches 2 and 4 ON, each time switch 5 is set to ON the output will change to reverse acting or direct acting. To reset the unit to the default setting, toggle both switches 5 and 6 ON then OFF while both switches 2 and 4 are ON. When all calibration is completed, remember to place the switches back into the positions that correspond to the output needed as shown in Figure #3. RH CALIBRATION INSTRUCTIONS Note: This is only a single point calibration. All transmitters are factory calibrated to meet/exceed published specifications. Field adjustment should not be necessary. The dipswitch allows the user to calibrate the sensor through the software. Setting switch 4 ON will put the transmitter into setup mode allowing the increment and decrement to work. Once in setup mode, the output will change to 50% (2.5V for 0-5V, 5V for 0-10V, 12mA for 4-20mA). Each increment or decrement step will cause the output to change by 0.1V for 0-5V, 0.2V for 0-10V, and 0.32mA for 4-20mA in setup mode. This can be used to show the user how far offset the transmitter is. To see the starting point again set switch 1 ON. This will show the 50% output again. When the unit is out of setup mode the output will go back to RH output. Increment RH Output This will shift the RH output linearly up in 0.5% steps. Switch 4 must be set to ON first. After switch 4 is on, each time switch 5 is set ON the RH output will increase by 0.5%. The increase goes into effect each time switch 5 is set to ON. Decrement RH Output This will shift the RH output linearly down in 0.5% steps. Switch 4 must be set to ON first. After switch 4 is on, each time switch 6 is set ON the RH output will decrease by 0.5%. The decrease goes into effect each time switch 6 is set to ON. Reset RH Output This will reset the RH output back to the original calibration. Switch 4 must be set to ON first. After switch 4 is on, toggle switches 5 and 6 ON then OFF. After 5 and 6 are OFF slide switch 4 OFF. When all calibration is completed, remember to place the switches back into the positions that correspond to the output needed as shown in Figure #3. Note: Potentiometers P1 (Zero) and P2 (Span) in Figure #1 are not used for RH sensor calibration. They are used for factory use only! Output Selection Switches (SW1)ON2681OFF0-10 VDC Output0-5 VDC Output43OFF5ON7ON2378ON1456OFFON484-20 mA Output1ON23567 AUTOMATION COMPONENTS, INC Version : 4.0 2305 Pleasant View Road Page 3 of 4 I0000545 Middleton, Wisconsin 53562 (888) 967-5224 www.workaci.com TEST INSTRUCTIONS Test mode will make the transmitter output a fixed 0%, 50%, or 100% value. The sensor will not affect the transmitter output. This is used for troubleshooting or testing only. Switches 1, 2, and 3 are used for test mode. The output will be a fixed 0%, 50%, or 100% signal that corresponds to the output selected with switches 6, 7, and 8. Refer to Figure #4 for switch settings. Figure #4 TEMPERATURE WIRING DIAGRAMS 2-Wire Resistive Sensors Figure #5 AD592 or LM334 Current Sensor AD592, LM334, or LM34 Voltage Output Setpoint and Override Wiring Setpoint and Override Common Ground Wiring 50% RH Output100% RH OutputONOFF11OFFONONON62345786243587Test Selection Switches (SW1)ON0% RH OutputOFF1ON2345867+ Temperature Sensor / Override (Short Sensor) Output - Temperature Sensor / Override (Short Sensor) Output 3 Wire Sensor (Only for 3 wire applications) Tenant Override or Dry Contact (Separate Output only) Tenant Override or Dry Contact (Separate Output only) Setpoint Output Setpoint Output +5 VDC to +30 VDC Supply Voltage Current Output +5 VDC to +30 VDC Supply Voltage Voltage Output Power Supply Common or Ground Tenant Override or Dry Contact (Separate Output Only) Setpoint Output AUTOMATION COMPONENTS, INC Version : 4.0 2305 Pleasant View Road Page 4 of 4 I0000545 Middleton, Wisconsin 53562 (888) 967-5224 www.workaci.com TEMPERATURE DIPSWITCH DIAGRAMS RH CONVERSION FORMULAS To convert output signal to percent RH: 4-20 mA (mA signal) -4) / 0.16 = percent RH Example: 12mA output signal (12-4) / 0.16 = 50% RH 0-5 VDC (VDC signal) / 0.05 = percent RH Example: 1.25vdc output signal 1.25 / 0.05 = 25% RH 0-10 VDC (VDC signal) / 0.10 = percent RH Example: 7.50vdc output signal 7.50 / 0.10 = 75% RH TROUBLESHOOTING Problem: No Reading Check that you have the correct supply voltage at the power terminal blocks. Check that wiring configurations and all DIP switch settings are as in Figures #2 and #3. Verify that the terminal screws are all connected tightly and that all of the wires are firmly in place. Erratic Readings Verify that all of the wires are terminated properly. Make sure that there is no condensation on the board. Check that the input power is clean. In areas of high RF interference or noise, shielded cable may be necessary to stabilize signal. Inaccurate Readings If you suspect that the transmitter is not reading within the specified tolerance, please contact the factory for further assistance. ON1324ON13244-20mA Output: 250 Ohm Load 15 - 40 VDC / 18 - 28 VACRH Measurement Range0 to 100% RH 4-20mA Output: 500 Ohm Load 18 - 40 VDC / 18 - 28 VAC (500 Ohm Load Max)RH Accuracy @ 77oF (25oC) 1% over 20% span (between 20 to 90%) ± 2%, 3%, or 5% from 10 to 95% 0-5 VDC Output: 12 - 40 VDC / 18 - 28 VAC (4K Load Minimum)Repeatability0.5% RH0-10 VDC Output: 18 - 40 VDC / 18 - 28 VAC (4K Load Minimum)Operating Humidity Environment0 to 95% RH Supply CurrentVoltage Output: 8mA Max Current Output: 24mA Max Operating Temp. Environment32 to 122°F (0 to 50°C)2-Wire, 4 - 20 mAStorage Temp. Range-40 to 160°F (-40 to 71°C)3-Wire, 0 - 5VDC, 0 - 10VDC, or 4-20mASupply VoltageRH OutputPRODUCT SPECIFICATIONS ON1324ON1324OVERRIDE SHORTS SENSOR OVERRIDE SEPARATE INPUT ON1324SETPOINT IN SERIES WITH SENSOR, OVERRIDE SEPARATE INPUT COMMON GROUND OVERRIDE SHORTS SENSOR ON1324COMMON GROUND OVERRIDE SEPARATE INPUT SETPOINT IN SERIES WITH SENSOR, OVERRIDE SHORT SENSOR Installation and Operation Instructions A/TT100, A/TT1K A/TTM100, A/TTM1K AUTOMATION COMPONENTS, INC Version : 2.0 2305 Pleasant View Road I0000100 Middleton, Wisconsin 53562 Page 1 of 3 www.workaci.com (888) 967-5224 READ THESE INSTRUCTIONS BEFORE YOU BEGIN INSTALLATION The A/TT and TTM DO NOT support an AC input. All ACI/TT and TTM temperature transmitters can be powered from either an unregulated or regulated 8.5 to 32VDC power supply. The minimum voltage at the transmitter power terminal is 8.5V after load resistor voltage drop. 249 ohm load resistor (1-5VDC output) = 13.5V minimum supply Voltage 499 ohm load resistor (2-10VDC output) = 18.5V minimum supply Voltage Several transmitters may be powered from the same supply as shown below. +VDC (Red Wire)4 to 20mA Output (White Wire)RTD Wires(100 Ohm RTD Brown Wires)(1K Ohm RTD Black Wires)+VDC (Red Wire)GND (White Wire)RTD Wires(100 Ohm RTD Brown Wires)(1K Ohm RTD Black Wires)Voltage Output (Yellow Wire)(1 to 5, 2 to 10VDC)Voltage Output(1 to 5, 2 to 10VDC)Current Output(4 to 20 mA)-++VDC4 to 20mA OutputCurrent Output(4 to 20 mA)Voltage Output(1 to 5, 2 to 10VDC)+VDCGNDVoltage Output(1 to 5, 2 to 10VDC)+-GNDVOUTRTD-++-RTDSPANZEROSPANZEROSPANZEROSPANZEROStandard UnitsPotted Units AUTOMATION COMPONENTS, INC Version : 2.0 2305 Pleasant View Road I0000100 Middleton, Wisconsin 53562 Page 2 of 3 www.workaci.com (888) 967-5224 Each transmitter could draw 25mA. To determine the number of transmitters use the following formula: N=I/25mA where: N = number of transmitters I = current available from power supply 25mA = maximum current draw of transmitter e.g., If I = 1.5A then: N = 1.5/25mA N = 60 Therefore a 1.5A power supply will safely power up to 60 transmitters. All A/TT and TTM temperature transmitters are reverse polarity protected. Room Temperature Transmitters This unit is suitable for either drywall or junction box mounting. First, remove the cover of the housing and mount the base of the Room unit to the wall, using the (2) 6/32” x 1” screws that are provided. Once the base is mounted to the wall, make all of the proper connections and then place the cover back onto the unit. Now tighten the cover down, using the (2) Allen screws located in the bottom of the housing. The Room transmitter is provided with a two pole terminal block for power and a two pole terminal block for the RTD, which allows for easy wiring of the unit. Duct & Duct Averaging Temperature Transmitters Duct Temperature Sensors - Drill a 3/8” hole in the duct and insert the probe through the hole until the foam pad is tight to the duct. Now insert (2) screws through the mounting holes in the flange and tighten until the unit is held firmly to the duct. Duct Averaging Sensors – Drill a 3/8” hole in the duct and insert the averaging element through the hole until the foam pad is tight to the duct. Now insert (2) screws through the mounting holes in the flange and tighten until the unit is held firmly to the duct. The sensor should then be strung in a criss-cross pattern throughout the duct (see Figure #2) using the mounting clips provided, in a pattern that covers the greatest surface area of the duct, to insure that there is no stratification. When bending the copper tubing, be careful that you use a gradual bend and that you DO NOT kink the copper tubing. Power Supply + - + - + -Temp.Transmitter #1Temp.Transmitter #NTemp.Transmitter #2 -VDC+ Controller Gnd In1 In2 In3 = ConnectionsIn1 = Controller Input #1In2 = Controller Input #2In3 = Controller Input #3 AUTOMATION COMPONENTS, INC Version : 2.0 2305 Pleasant View Road I0000100 Middleton, Wisconsin 53562 Page 3 of 3 www.workaci.com (888) 967-5224 Immersion Temperature Transmitters The ACI Immersion type transmitters are provided with a 2.5”, 4” or 8” 304 series stainless steel thermowell. The thermowell has a 1/2” external or process NPT threads and 1/2” internal or instrument NPT threads. All of the ACI thermowells will accept a probe diameter of 0.250”. Strap-On Temperature Transmitters The ACI Strap-On transmitters are provided in a junction box with an adjustable 2” to 5” pipe clamp. The unit should be mounted on the bottom side of the pipe to ensure good temperature transfer. In hot water applications (over 150oF) it is recommended that the transmitter be remote located so as not to exceed the operating temperature of the transmitter. Extra straps may be ordered for larger diameter pipes. Outside Air Temperature Transmitters The ACI Outside Air transmitters are provided in two parts including a weatherproof enclosure and a 2” X 4” junction box. The sensors will be mounted in the weatherproof enclosure and mounting hardware is provided. The transmitter will be provided in the 1 gang junction box and should be mounted on an inside wall so as not to exceed the operating temperature limits of the transmitter. This sensor should be mounted on either the North side of the building or anywhere out of direct sunlight with the sensor probe pointed downward. Weatherproof Aluminum Bell Boxes and NEMA 4X Polycarbonate enclosures are available upon request. Stainless Plate Temperature Transmitters The ACI Stainless Plate temperature transmitters are mounted on the back of a 2” x 4” stainless plate. The sensor is covered with a 1/8” foam insulation, which allows the sensor to sense the actual room temperature and ignore any heat produced by the transmitter or drafts from within the wall. All mounting screws are provided. Troubleshooting No Reading No power to board - check voltage at power terminal - should be between +8.5 and 32 VDC. Reading too Low RTD wires shorted - check with ohmmeter - should be close to either 100 or 1000 Improper range of transmitter (too low) - check current - should be between 4 and 20mA. Reading too High RTD opened - check with ohmmeter - should be close to either 100 or 1000 Improper range of transmitter (too high) - check current - should be between 4 and 20mA. RF Interference Input power must be clean. Use twisted wires or shielded cable. RF resistant power supply. Use a shielded cable to connect the sensor - connect the shield to ground. Encase the board in a RF shielded enclosure. OhmMeterOHMSDisconnect RTD beforetesting sensor resistanceVOLTSMeasure across the + and – ofthe Power WiresRedLeadBlackLeadVoltMeterBlackLeadRedLead+ -+1 to 5 VDC / +2 to 10 VDCOutputCURRENTDisconnect (-) and placemeter in Series~ 100 Ohm or~ 1000 OhmCurrent MeterPowerSupplyTo ControllerInput or PowerSupply Common+4 to 20 mAOutputBlackLeadRedLeadRTDPower Supply /Controller CommonNext >