AAON ASM07527 E-BUS Digital Display User Guide

AAON ASM07527 E-BUS Digital Display

Specifications

• Product Name : E-BUS Digital Display
• Part Number : ASM07527
• Software: SS3025
• Onboard Temperature and Relative Humidity Sensing: Not available

Product Information

• General Information
  The E-BUS Digital Display is designed to show the active space temperature and space humidity being used by the VCCX2 controller.

Mounting and Wiring

• Requirements and Considerations
  Ensure proper mounting and wiring according to the guidelines provided in the manual to ensure optimal functionality.

• Wiring
  Connect the EBUS Digital Display to the VCCX2 Controller following the specified wiring instructions in the manual.

• Basic Operation
  The E-BUS Digital Display features buttons and LEDs for user interaction and feedback. Refer to the manual for detailed information on their functionalities.

• Display Screens
  The LCD display screens provide information on space temperature and humidity. Configuration and test screens are also available for further customization.

FAQ

1. Q: Does the E-BUS Digital Display have temperature and humidity sensing capabilities onboard?
   A: No, the display does not have onboard temperature and relative humidity sensing capabilities. It relies on data provided by the VCCX2 controller.

2. Q: Where can I download the manual for the E-BUS Digital Display?
   A: The manual can be downloaded from www.aaon.com or you can contact AAON, Inc. for support.

E-BUS Digital Display Technical Guide

ASM07527Software SS3025

NOTE : Display does not have onboard temperature  and relative humidity sensing capabilities.

EBUS DIGITAL DISPLAY TECHNICAL GUIDE

REVISION AND DATE| CHANGE
Rev. A, June 28, 2023| Original
Rev. B, July 13, 2023| Added Not e: Display does not have onboard temperature and relative humidity sensing capabilities.
EBUS DIGITAL DISPLAY PARTS REFERENCE

PART DESCRIPTION| PART NUMBER
E-BUS Digital Display| ASM07527
VCCX2 Controller| ASM01698

• 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
• All rights reserved. © July 2023 AAON, Inc.
• AAON® is a registered trademark of AAON, Inc., Tulsa, OK.
• It is the intent of AAON to provide accurate and current product information. However, in the interest of product improvement, AAON reserves the right to change pricing, specifications, and/or design of its product without notice, obligation, or liability.

GENERAL INFORMATION

Features

Overview

• The E-BUS Digital Display is used to display the active space temperature and space humidity the VCCX2 is currently using. See Figure 1, this page.
• The E-BUS Digital Display connects to the controller using various lengths of EBUS cables.

WARNING: The E-BUS cables should not run in conduit  with other AC line voltage wiring or with any conductors carrying highly inductive loads.

Figure 1: E-BUS Digital Display

The E-BUS Digital Display provides the following functions:

• Provides 112 x 64 monochrome graphical LCD display with LED backlight.
• Displays the current space temperature.
• Displays outdoor air temperature if controller is configured with an outdoor air temperature sensor.
• Displays the current space humidity.
• Displays outdoor air relative humidity if the controller is configured with an outdoor air humidity sensor.
• Displays the current zone setpoint temperature.
• Equipped with buttons for changing the zone setpoint temperature.
• Equipped with an override button for forcing the VCCX2 Controller into Occupied Mode.
• Provides graphics to indicate the mode of operation.
• Provides LEDs to indicate schedule override, button push, alarms, and communications.
  NOTE : Display does not have onboard temperature and relative humidity sensing capabilities

MOUNTING AND WIRING

Requirements and Considerations

• Environmental Requirements

  • The E-BUS Digital Display 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 95% relative humidity levels (non-condensing).

• Mounting

  • The E-BUS Digital Display is designed to be mounted to a vertical 2” x 4” electrical box recessed in the wall. If the wall cannot be penetrated, a plastic surface mount box such as those made by WiremoldTM may be used to mount the display to the wall surface. The display should be mounted at least 5 ft. above the floor.
  • The display is mounted by removing the front cover and fastening the housing base to the electrical box using the supplied mounting screws. The E-BUS cable is plugged into the E-BUS connector located on the circuit board. The cover is then placed onto the housing base, and the screw on the bottom of the base is adjusted to hold the cover in place.

• CAUTION: Do not touch the front face of the display while plugging in the E-BUS cable. Touching the front face of the display while plugging in the cable may prevent proper initialization and keep the buttons on the display from working properly.
  Mounting Plate

  • A mounting plate is included with the E-BUS Digital Display. The plate screws onto the back of the housing base. The mounting plate is then mounted and covers the recessed space in the wall.

WIRING

• E-BUS Digital Display to VCCX2 Controller
• The E-BUS Digital Display connects directly to the VCCX2 Controller with an E-BUS cable when only the display is used.

See Figure 3, this page, for wiring details.

Figure 3: E-BUS Digital Display Wiring to Controller

BASIC OPERATION

Buttons and LEDs

• Display Operation
  • When power is first applied to the E-BUS Digital Display the current space temperature, humidity. and slide offset are visible.
  • NOTE: The readings are not accurate until the controller the display is connected to is finished calibrating.
  • The display has four buttons: , , , and . Certain functions can be accessed by touching the area below the and buttons. The display has three user-visible LEDs, one to indicate an override, one to indicate an alarm, and one to indicate a button has been pressed. See Figure 4, this page, for LED and button descriptions.
• LED Operation
  • Alarm LED : The Alarm LED lights up solid when there is an alarm from the controller. The default for the Alarm LED is to be disabled. The Alarm LED can be enabled by configuring the VCCX2 Controller.
  • Sense LED : The Sense LED blinks when the display gets a valid touch.
  • Override LED: The Override LED is inoperable when in Occupied Mode. In Unoccupied Mode, the Override LED blinks when the button is touched, indicating an override request. The controller responds by sending the unit into override. The Override LED stays on for the duration of the override. Any time the unit is in Override Mode, the override can be canceled by touching the button. The Override LED blinks and the unit cancels the override. The Override LED then turns off.
  • Comm LED: The Comm LED located on the back of the display blinks on whenever communications are sensed.

DISPLAY SCREENS

LCD Display Screens

• Main Display Screens

  • There are three main display screens. The first screen displays the current space temperature, operation mode, slide offset, and RH. The second screen displays the outdoor air temperature and/or humidity if connected to the appropriate sensor. The third screen displays the unit information for the controller connected to the E-BUS Digital Display.

• Home Screen

  • The Home Screen displays the current space temperature, the humidity in the room, the current setting of the slide offset, and an icon for the current mode of operation once the controller it is connected to is done calibrating.
  • Descriptions of the displayed operation modes can be found on page 10.

• Outdoor Status Screen

• Figure 5: Home Screen

  • If the connected controller is receiving an outdoor air temperature and/or humidity broadcast, touching will first bring up the Outdoor Status Screen.
  • Figure 6: Outdoor Status Screen

• Unit Information Screen
  Touching again will bring up the Unit Information Screen which contains the unit address or ID, screen ID, and software version of the controller connected to the display.

• Figure 7: Unit Information Screen

Setpoint Adjust Screen

• Touching , or will display the Setpoint Adjust Screen. You can adjust the cooling and heating setpoints from this screen based on the VCCX2 Controller slide offset setpoint.
• For example, if the connected controller’s max slide offset setpoint is set for five, you can adjust the setpoint up five degrees and down five degrees.
• Figure 8: Setpoint Adjust Screen
• NOTE : If the VCCX2 Controller’s slide offset setpoint is set to zero, this screen will not appear when you touch

DISPLAY SCREENS

LCD Display Screens

• Operation Modes
  • The different icons shown are a snowflake 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.

• Configuration and Test Screens
  • To access the Configuration and Test Screens, you first need to access the Unit Information Screen by touching while at the Home Screen.
  • NOTE: While in the Configuration and Test Screens, the button functions as an exit key to return to the previous screen or menu. After a few seconds, however, the display will automatically revert to the Home Screen.
• While the Unit Information Screen is being displayed, you can enter the Configuration and Test Screen options by touching simultaneously below the and buttons. 
• Figure 10: Configuration and Test Screen
• Pixel Test Screen
  • Touch while at the Configuration and Test Screen to access the Pixel Test Screen. This tests the pixels of the LCD display, allowing you to make the screen white with black characters, black with white characters, a solid black screen, or a solid white screen. To exit this screen, touch .
• Figure 11: Pixel Test Screen
• Info & LED Test Screen
  • Touch while at the Configuration and Test Screen to access the Info & LED Test Screen. This screen shows the version of software that the display is running and allows you to test the LEDs that are used on the controller. Touching will turn the LEDs on and touching will turn the LEDs off. To exit this screen, touch .
• Figure 12: Info & LED Test Screen
• LCD Backlight Test Screens
  • Touch while at the Configuration and Test Screen to access the Backlight Screen. This option allows you to control when the LCD backlight turns on and off. You can configure the backlight to stay on at all times, remain off at all times, or to come on when any button is touched on the display. To exit this screen, touch .
• Figure 13: Backlight Screen

APPENDIX A – MOUNTING PLATE Dimensions

Mounting Plate
Included with the Digital Display is a mounting plate that can be used, if necessary, to cover the display 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 display to the wall.

Figure 14: Mounting Plate Dimensions

• E-BUS Digital Display Technical Guide
• Rev. B · 230713
• AAON Controls Support:
  • 866-918-1100
  • Monday through Friday, 7:00 AM to 5:00 PM Central Time
• Controls Support website:
  • www.aaon.com/aaon-controls-technical-support
• AAON Factory Technical Support:
  • 918-382-6450
  • [email protected]
• 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.-
• 2425 So. Yukon Ave
• Tulsa, OK
• 74107-2728
• Ph: 918-583-2266
• Fax: 918-583-6094 Created in the USA
• © July 2023 AAON
• All Rights Reserved

References

• AAON Controls Tech Support | AAON

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