AAON Orion ASM01819 Technical Manual

OVERVIEW ....................................................................................................................................... 3 BASIC OPERATION .......................................................................................................................... 4 Sensor Operation ..................................................................................................................................................... 4 LED Operation ......................................................................................................................................................... 4 MOUNTING AND WIRING ................................................................................................................ 5 Dimensions .............................................................................................................................................................. 5 Environmental Requirements ................................................................................................................................... 5 Important Wiring Considerations .............................................................................................................................. 5 Mounting .................................................................................................................................................................. 5 SENSOR OPERATION ...................................................................................................................... 6 Main Sensor Display Screens.................................................................................................... 6 Temperature and Humidity Status Screen .......................................................................................................... 6 Outside Air Temperature Humidity Status Screen............................................................................................... 6 Unit Information Screen ...................................................................................................................................... 6 Setpoint Adjust Screen ....................................................................................................................................... 7 Operation Modes ................................................................................................................................................ 7 TROUBLESHOOTING ....................................................................................................................... 8 Temperature Sensor Testing for the Temperature Only Sensor ............................................................................... 8 APPENDIX ..................................................................................................................................... 10 Sensor Confi guration and Test Screens ................................................................................................................ 10 Connecting the E-BUS Digital Room Sensor to the HVAC Unit Controller ............................................................ 12 Connecting a Wall Mounted E-BUS CO2 Sensor to the HVAC Unit Controller ...................................................... 13 Connecting the E-BUS Digital Room Sensor to the VAV/Zone Controller ............................................................. 14 Connecting a Remote Sensor ................................................................................................................................ 15 Mounting Plate Dimensions ................................................................................................................................... 18 PART NUMBER CROSS REFERENCE TABLE PART DESCRIPTION AAON P/N E-BUS LCD Digital Room Sensor Temp Only ASM01819 E-BUS LCD Room Sensor Temp & Humidity ASM01820 E-BUS Digital Room Sensor Temp & Humidity (No Display) ASM02221 Wall-Mounted E-BUS CO2 Sensor ASM01829 Mounting Plate G026490 Return Air Duct Temperature Sensor - 12” P87140 VCCX2 Controller ASM01698 VCB-X Controller ASM01862 VAV/Zone Controller P.D. & P.I. ASM01627 / ASM01630 AAON, Inc. 2425 South Yukon Ave. Tulsa, OK 74107-2728 www.aaon.com Factory Technical Support Phone: 918-382-6450 Controls Support Phone: 866-918-1100 AAON Manual P/N: G042540, 01N Copyright February 2019 AAON, Inc. AAON, Inc. assumes no responsibility for errors or omissions. This document is subject to change without notice. This manual is also available for download from our website—aaon.com—where you can always fi nd the latest literature updates.

3 OVERVIEW Overview The E-BUS Digital Room Sensors are used to sense Space Temperature only or Space Temperature & Space Humidity. See Figures 1 & 2. The ASM01819 is the Space Temperature Sensor only model and the ASM01820 & ASM02221 are a combination Space Temperature & Space Humidity Sensor model. The ASM02221 model includes an enclosure without LCD display, front LEDs, and buttons. Any of the sensors can be used with the VCCX2 Controller and VCB-X Controller and connect to the controller using various lengths of EBC E-BUS cables connected between the controller and the sensor. The EBC E-BUS cables should not run in conduit with other AC line voltage wiring or with any conductors carrying highly inductive loads. The ASM01819 model can be used with the VAV/Zone Controller. It is either hard-wired or connected via EBC E-BUS cable. The ASM01819 & ASM01820 sensors provide the following useful functions: • Provides 112 x 64 monochrome Graphical LCD display with LED backlight • Displays the Current Space Temperature • Displays Outdoor Air Temperature (if controller is confi gured with an OA Temperature Sensor) Features Figure 1: ASM01819 & ASM01820 E-BUS Digital Room Sensor with LCD Display and Buttons Display Override OVERRIDE ALARM • Displays the Current Space Humidity (ASM01820 model only) • Displays Outdoor Air Relative Humidity (ASM01820 model if controller is confi gured with an OA Humidity Sensor) • Displays the Current Zone Setpoint Temperature when slide adjust is entered • Equipped with Push Buttons for changing the Zone Setpoint Temperature • Equipped with an Override Button for forcing the VAV/Zone Controller or VCCX2 / VCB-X Controller into Occupied Operation from Unoccupied Operation • Provides graphics to indicate the Mode of Operation • Allows connection of a remote 10K Ohm, Type III thermistor temperature sensor (or 4 sensor averaging array). See Connecting a Remote Sensor section in the Appendix on page 15 for details. • Provides LEDs to indicate Schedule Override, Button Push, Alarms, and Communications • Can display Temperature reading from a Remote Temperature Sensor (see Figures 21 & 22, pages 15 & 16 for instructions) Figure 2: ASM02221 E-BUS Digital Room Sensor - No LCD Display or Buttons

4 Figure 3: E-BUS Digital Room Sensor Components Alarm LED Sense LED Override LED Override Button Display Button Up Button Down Button LCD Display Cover Set Screw MICROCHIP PIC24HJ 256GP206 Back View Remote Thermistor Sensor Connector Front View E-BUS Cable Connection +12Vdc GND -COM SHLD Comm LED (Not visible with back cover on) Display Override OVERRIDE ALARM Sensor Operation When power is fi rst applied to the ASM01819 E-BUS Digital Room Sensor, the sensor will display the Current Room Temperature and the current setting of the slide off set. The ASM01820 model will also display Relative Humidity. NOTE: The sensor readings are not accurate until the controller that the sensor is connected to is done calibrating. The sensor has 4 buttons—, , , and . You can also access certain functions by touching the area below the and buttons. The sensor has 4 LEDs—one to indicate an Override, one to indicate an Alarm, one to indicate Communications, and one to indicate that a button has been pressed. See Figure 3 for LED and Button Descriptions. An icon for the current mode of operation will appear in the sensor display. The operation mode icons are a Snowfl ake for Cooling Mode, a Flame for Heating Mode, a Fan in motion for Vent Mode, and a Moon for Unoccupied Mode. When the unit is in Unoccupied Mode, the screen’s background will turn dark. See Figure 9, page 7 for examples of operation modes. Buttons and LEDs LED Operation Refer to Figure 3 for LED locations. Alarm LED: The Alarm LED will blink when there is an alarm from the Controller. Sense LED: The Sense LED will blink when the sensor gets a valid touch. Override LED: The Override LED is inoperable when in Occupied Mode. In Unoccupied Mode, if you touch the button, the Override LED will blink, indicating an override request. The Control- ler will respond by sending the unit into override. The Override LED will then stay on for the duration of the Override. Any time the Unit is in Override, you can request to cancel the override by touching the button, and the Override LED will blink. The Unit will then cancel the override. The Override LED will then turn off . Comm LED: The Comm LED located on the back of the sensor blinks on whenever communications are sensed.

MOUNTING AND WIRING 5 Mounting CAUTION: Do not touch the front face of the sensor while you are plugging in the modular sensor cable. Touching the front face of the sensor while plugging in the cable may prevent proper initial- ization and keep the buttons on the sensor from working properly. The E-BUS Digital Room Sensor is designed to be mounted to a vertical 2” x 4” electrical box recessed in the wall. If the wall cannot be pen- etrated, a plastic surface mount box such as those made by WiremoldTM may be used to mount the sensor to the wall surface. The Sensor should be mounted at least 5 feet above the fl oor. The Sensor is mounted by removing the front cover and fastening the housing base to the electrical box using the supplied (2) 6/32” x 1” machine screws. The modular cable is then plugged into the phone jack located on the circuit board that is mounted on the cover. The cover is then placed onto the housing base, and the Allen Screw on the bottom of the base is adjusted to hold the cover in place. A locking screw secures the sensor to the wall. See Figure 4 for E-BUS Digital Room Sensor dimensions. Optional Mounting Plate Included with the Digital Room Sensor is a mounting plate that can be used, if necessary, to cover the sensor sheet rock opening. This mounting plate screws onto the back of the housing base. The mounting plate is then mounted and covers the recessed space in the wall. A locking screw secures the sensor to the wall. See Figure 25, page 18 for dimensions. Environmental Requirements The E-BUS Digital Room Sensor needs to be installed in an environment that does not exceed a temperature greater than 150°F or less than -30°F and does not exceed 90% relative humidity levels (non-condensing). Indoor Reading Range The E-BUS Digital Room Sensor’s Indoor Reading Range is 40°F to 120°F and 0-100% RH (RH is available on the ASM01820 & ASM02221 models). Its temperature reading accuracy is +/- .8°F, and its RH reading accuracy is +/- 3%. Its sensor element is the integral communicating digital sensing device or external Type III Thermistor 10K Ohm @ 77°F. Outdoor Reading Range If your E-BUS Digital Room Sensor is set up to read an Outdoor Air Temperature Sensor, any outdoor air temperature below -40°F will not appear on the E-BUS Digital Room Sensor’s display. Important Wiring Considerations The E-BUS Digital Room Sensors connect to the VCCX2 or VCB-X Controller using various lengths of EBC E-BUS cable connected between the controller and the sensor. The EBC E-BUS cables should not run in conduit with other AC line voltage wiring or with any conductors carrying highly inductive loads. See Figure 18, page 12 for wiring. Dimensions and Mounting Figure 4: E-BUS Digital Room Sensor Dimensions MICROCHIP PIC24HJ 256GP206 4.55” 2.80 Front View Side View Back View 0.69 1.1 1.81 1.87 0.49 Remote Thermistor Sensor Connector 0.81 +12Vdc GND -COM SHLD Display Override OVERRIDE ALARM

6 LCD Display Screens Main Sensor Display Screens There are 3 Main Sensor Display Screens. The fi rst screen displays the Current Room Temperature, Operation Mode, Slide Off set, and RH (RH is available on the ASM01820 model). The second screen displays the Outside Air Temperature and/or Humidity if Outdoor Air Temperature and/or Outdoor Air Humidity that is being monitored. The third screen displays the unit information for the controller that the Digital Room Sensor is connected to. Temperature and Humidity Status Screen The Main Display Screen dis- plays the current room tem- perature, the humidity in the room (RH is available on the ASM01820 model), the current setting of the slide off set, and an icon for the current mode of operation once the controller it is connected to is done calibrating. The diff erent icons shown are a Snowfl ake for cooling mode, a Flame for heating mode, a Fan in motion for vent mode, and a Moon for unoccupied mode. When the unit is in unoccupied mode, the screen’s background will turn dark. Refer to Figure 9, page 7 for operation mode screen examples. Figure 5: Main Display Screen Figure 6: Outdoor Status Screen Figure 7: Unit Information Screen Outside Air Temperature Humidity Status Screen If the connected controller is receiving an outdoor air tempera- ture and/or humidity broadcast, touching will fi rst bring up the Outdoor Status Screen. Unit Information Screen Touching again will bring up the Unit Information Screen which contains the con- troller’s address or ID number, screen ID, and software version of the controller connected to the sensor.

SENSOR SCREENS 7 Setpoint Adjust Screen Touching <> or <> will dis- play the Setpoint Adjust Screen. You can adjust the cooling and heating setpoints from this screen based on the VAV/Zone, VCCX2, or VCB-X Controller slide off set setpoint. For example, if the con- nected controller’s Max Slide Off set Setpoint is set for fi ve, you can adjust the setpoint up fi ve degrees and down fi ve degrees. NOTE: If the VAV/Zone or Unit Controller’s slide off set setpoint is set to Zero, this screen will not appear when you touch <> or <>. Figure 9: Operation Mode Screens Cooling Mode with Snowfl ake Icon Heating Mode with Flame Icon Vent Mode with Fan in Motion Icon Figure 8: Setpoint Adjust Screen Unoccupied Mode with Moon Icon Operation Modes Refer to Figure 9 for operation mode screen examples. The diff erent icons shown are a Snowfl ake for cooling mode, a Flame for heating mode, a Fan in motion for vent mode, and a Moon for unoccupied mode. When the unit is in unoccupied mode, the screen’s background will turn dark. LCD Display Screens

8 Troubleshooting the Temperature Only Sensor Figure 10: Temperature/Resistance Testing for ASM01819 - Temperature Only Sensor

TROUBLESHOOTING 9 Temperature/Resistance Chart Table 1: Temperature/Resistance for Type III 10K Ohm Thermistor Sensors Temperature – Resis- tance –for Type III 10K Ohm Thermistor Sensors Temp (ºF) Resistance (Ohms) -10 93333 -5 80531 0 69822 5 60552 10 52500 15 45902 20 40147 25 35165 30 30805 35 27140 40 23874 45 21094 50 18655 52 17799 54 16956 56 16164 58 15385 60 14681 62 14014 64 13382 66 12758 68 12191 69 11906 70 11652 Temperature – Resis- tance – for Type III 10K Ohm Thermistor Sensors Temp (ºF) Resistance (Ohms) 71 11379 72 11136 73 10878 74 10625 75 10398 76 10158 78 9711 80 9302 82 8893 84 8514 86 8153 88 7805 90 7472 95 6716 100 6047 105 5453 110 4923 115 4449 120 4030 125 3656 130 3317 135 3015 140 2743 145 2502 150 2288

10 Pixel Test Screen To select the first option— Pixels—touch <> while at the Sensor Configuration & Test Screen (Figure 12). The Pixel Test Screen tests the pixels of the LCD display, allowing you to make the screen white with black characters, black with white characters, or a black or white screen. To exit this screen, touch . Sensor Info & LED Test Screen To select the second option— Info & LEDS—touch < > while at the Sensor Confi gura- tion & Test Screen (Figure 12). The Sensor Info & LED Test Screen shows the version of software that the sensor is run- ning and allows you to test the LEDs that are used on the con- troller. Touching <> will turn the LEDs on and touching <> will turn the LEDs off . To exit this screen, touch . Sensor Confi guration and Test Screens Sensor Confi guration and Test Screens To access the Sensor Confi guration & Test Screens, you fi rst need to access the Unit Information Screen by touching while at the Main Display Screen. NOTE: While in the Sensor Confi guration & Test Screens, the button functions as an exit key to return to the previous screen or menu. After a few seconds, however, the sensor will automatically revert to the Main Display Screen. Refer to Figure 11 when reading the instructions that follow. Sensor Confi guration & Test Screen While the Unit Information Screen is being displayed, you can enter the Sensor Confi gura- tion & Test Screen options by touching simultaneously below the and buttons. (See Figure 11 which shows where to touch to access this option.) Override Button Display Button Touch Here Touch Here Display Override Figure 11: E-BUS Digital Room Sensor Buttons Figure 12: Sensor Confi guration & Test Screen Figure 14: Sensor Info & LED Test Screen Figure 13: Sensor Info & LED Test Screen

APPENDIX 11 LCD Backlight Test Screens To select the third option— BACKLT—touch while at the Sensor Confi guration & Test Screen (Figure 12, page 10). This option allows you to control when the LCD backlight turns on and off . You can con- fi gure the backlight to stay on at all times, remain off at all times, or to come on when any button is touched on the sensor. To exit this screen, touch . Sensor Confi guration and Test Screens Thermistor Averaging Screen To select the fourth and fi nal op- tion—THRM AVG—, while at the Sensor Confi guration & Test Screen (Figure 12, page 10), touch simultaneously below the and buttons. (See Figure 11, page 10 which shows where to touch to access this option.) This option allows you to set the rate—from 1-15 seconds—at which the sensor takes a new temperature reading. Touch <> to increase the number of seconds and touch <> to decrease the number of seconds. To exit this screen, touch . NOTE: The sensor takes the average of the last 10 readings based on the number that is entered in this screen. For example, if you want a 3-second sample, the sensor will take the average of the last 10 readings every 3 seconds over a 30-second span. Therefore, if you have your sensor next to an outside doorway, you would want to enter a higher number for your sample to give a more accurate read- ing for the room temperature in case the outside door is opened often. Figure 15: Backlight Test & Confi guration Screen Figure 16: Temperature Averaging Screen Address Screen To access the Address Screen, while at the Thermistor Averag- ing Screen, (Figure 16), touch the button. This option allows you to set the address—from 1-10. Touch <> to increase the number and touch <> to decrease the number. The default is 1. To exit this screen, touch . Figure 17: Address Screen SENSOR 1 COMM ADDRESS

12 E-BUS Digital Room Sensor to HVAC Unit Controller Wiring E-BUS Digital Room Sensor to HVAC Unit Controller Wiring The E-BUS Digital Room Sensor connects to the VCCX2 or VCB-X Controller with the EBC E-BUS expansion cable. The E-BUS Digital Room Sensor should be mounted at approximately 5 Ft. above the fl oor on the wall in an area that does not have drafts or is exposed to direct sunlight. See Figure 18 for wiring details. Figure 18: E-BUS Digital Room Sensor Wiring

APPENDIX 13 Figure 19: ASM01829 – Wall Mounted E-BUS CO2 Sensor Wiring E-BUS CO2 Wall Mounted Sensor to HVAC Unit Controller Wiring The ASM01829 Wall Mounted E-BUS CO2 Sensor is used to monitor CO2 levels in the space served by the HVAC unit. The CO2 Sensor con- nects to the VCCX2 or VCB-X Controller with an EBC E-BUS cable. It can be daisy-chained with the E-BUS Digital Room Sensor for applica- tions requiring both a room CO2 sensor and room temperature sensor. It should be mounted at approximately 5 Ft. above the fl oor on the wall in an area that does not have drafts or is exposed to direct sunlight. See Figure 19 for wiring details and installation notes. Wall Mounted E-BUS CO2 Sensor Wiring NOTE: The ASM01831 Duct Mounted E-BUS CO2 Sensor can be used if desired instead of the Wall Mounted E-BUS CO2 Sensor. However, the E-BUS Digital Room Sensor does not directly connect to the Duct Mounted E-BUS CO2 Sensor. See the Duct Mounted E-BUS CO2 Sensor Technical Guide for Duct Mounted E-BUS CO2 Sensor wiring details.

14 E-BUS Digital Room Sensor to VAV/Zone Controller Wiring E-BUS Digital Room Sensor to VAV/ Zone Controller Wiring The Temperature Only E-BUS Digital Room Sensor connects to the VAV/Zone Controller with an EBC E-BUS expansion cable. It can also be hard-wired to the VAV/Zone Controller. The E-BUS Digital Room Sensor should be mounted at approximately 5 Ft. above the fl oor on the wall in an area that does not have drafts or is exposed to direct sunlight. See Figure 20 for wiring details. Figure 20: VAV/Zone Controller E-BUS Digital Room Sensor Wiring

APPENDIX 15 Connecting a Remote Sensor Connecting a Remote Sensor If the job requires this Sensor to be mounted outside of a conditioned space, a remote Standard Space Sensor (ASM02227) or Return Air Tem- perature Sensor (P87140), or any 2-wire 10K Ohm, Type III thermistor temperature sensor can be hard-wired to the E-BUS Digital Room Sen- sor. Other versions of the AAON standard space sensors (ASM01638, ASM01642, ASM01643) with slide adjust and/or override button should not be used as the remote sensor. Contact AAON Controls for wiring information if a four sensor averag- ing array will be used as the “remote sensor”. See Figure 21 for Return Air Temperature Sensor wiring. See Figure 22, page 16 for Space Sensor wiring. E-BUS Digital Room Temperature Only Sensor Disconnect the modular cable from the E-BUS Digital Room Sensor before performing the following modifi cations. If using the Temperature Only version of the Digital Room Sensor, you must fi rst remove the Sensor’s back cover. You will see a loop of wire hanging off of the sensor circuit board. See Figure 23, page 17. This is the external thermistor loop wire. Clip the external thermistor loop wire so that the sensor will read the remote temperature input. Be sure to cut Figure 21: Return Air Temperature Sensor Wiring the ends of the wire close to the circuit board so that the sensor loop wire ends won’t short between each other. The remote sensor then wires to the remote sensor terminal block on the back of the Digital Room Sensor. If using the Standard Space Sensor as the remote sensor, you must clip off the C1 capacitor from the back of the Sensor Be sure to cycle power to begin reading the remote sensor. See Figure 22, page 16. E-BUS Digital Room Temperature and Humidity Sensor Disconnect the modular cable from the Digital Room Sensor before performing the following modifi cations. If using the Temperature and Humidity versions of the Digital Room Sensor, you only need to wire the remote sensor to the remote sensor terminal block on the Digital Room Sensor. DO NOT CLIP OFF OR REMOVE the temperature/humidity sensor element on the Digital Room Sensor. See Figure 24, page 17. When the remote temperature sensor is wired in, it will override the on-board temperature value of the Digital Room Sensor, even though the sensor element remains attached. If using a Standard Space Sensor as the remote sensor, you must clip off the C1 capacitor from the back of the sensor. Be sure to cycle power to begin reading the remote sensor. See Figure 22, page 16.

16 Connecting a Remote Sensor Figure 22: Attaching the ASM02227 Space Room Sensor

APPENDIX 17 Connecting a Remote Sensor Figure 23: Wire Clipping Instructions For Digital Room Temperature Only Sensor Figure 24: Instructions For Digital Room Temperature & Humidity Sensor

18 Mounting Plate Dimensions Figure 25: G026490 Mounting Plate Dimensions 1.64 3.285 0.060 5.045 3.27 Optional Mounting Plate Included with the Digital Room Sensor is a mounting plate that can be used, if necessary, to cover the sensor sheet rock opening. This mounting plate screws onto the back of the housing base. The mounting plate is then mounted and covers the recessed space in the wall. A locking screw secures the sensor to the wall. See Figure 25 for dimensions.

Ph: (918) 583-2266 • Fax: (918) 583-6094 AAON® Manual P/N: G042540, 01N Printed in the USA • © February 2019 AAON • All Rights Reserved AAON Factory Technical Support: 918-382-6450 [email protected] AAON Controls Support: 866-918-1100 Monday through Friday, 7:00 AM to 5:00 PM central standard time. NOTE: Before calling Technical Support, please have the model and serial number of the unit available. PARTS: For replacement parts please contact your local AAON Representative.