ALERTON MICROSET 4 Installation & Operation Manual
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ALERTON MICROSET 4 Installation & Operation Manual

ALERTON MICROSET 4 Installation & Operation Manual

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MICROSET 4
INSTALLATION &
OPERATIONS GUIDE

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Do you have a question about the MICROSET 4 and is the answer not in the manual?

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Renee
March 31, 2025

how do i get to the override screen?

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1 comments:
Mr. Anderson
March 31, 2025

To access the override screen on ALERTON MICROSET 4:

1. Press anywhere on the screen to activate the unit.
2. Press the RIGHT navigation arrow to go to the override screen.
3. On the override screen, use the UP or DOWN arrows to adjust the override time.

This answer is automatically generated

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Summary of Contents for ALERTON MICROSET 4

  • Page 1 MICROSET 4 INSTALLATION & OPERATIONS GUIDE...
  • Page 2 (24) months from date of shipment from Honeywell (the “Product Warranty Period”). This entire Section 5 is defined as the “Warranty.” Honeywell also warrants Alerton Products that it has previously repaired or replaced for the greater of ninety (90) days from the date of their shipment from Honeywell or the remainder of the Product War- ranty Period of the originally shipped Alerton Product (the “Repair/Replacement Warranty Period”).
  • Page 3 Lynnwood, WA 98087 USA PHONE: (425) 921-4900 FAX: (425) 921-4872 Web Site: www.alerton.com All information in this document is provided as is without warranty of any kind. Honeywell reserves the right to change any information herein without prior notice. No guarantees are given as to the accuracy of information. Trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products.

  • Page 4: Table Of Contents

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Contents Quick reference Introduction Specifications Mounting Wiring Wire specifications Power supply guidelines and requirements Microset 4 power ratings Power supply grounding and wiring MS/TP LAN wiring Terminating MS/TP LAN cabling Grounding the MS/TP LAN shield...

  • Page 5: Quick Reference

    Quick reference Table 1 DISPLAY/CONTROL DESCRIPTION SOFTWARE REMARKS FUNCTION Setpoint (°F or °C as Displays unit setpoint, room temperature, Setpoint = AV-90. appropriate) after-hours/housekeeping timer, or ON/OFF Room temperature = AV-101. Room temperature status, depending on mode of operation. Also Housekeeping timer or after-hours timer = AV-98.

  • Page 6: Honeywell Lt-Ms4Iog Rev. 04 | Revised October

    4 generally displays an Across the Room View when it is not being actively used by a room occupant or a Detail Screen view when it is being used to adjust room settings.These screens can display a wide range of information depending on Microset 4 model, configuration, and settings. Across The Room Screen View Examples...

  • Page 7: Introduction

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Introduction The Microset 4 is a wall-mounted BACnet smart sensor. It is designed for applications with multiple zones, such as a restaurant or a shopping mall; or split zone control sites, like an office setting where occupants share a single zone split into multiple working areas.

  • Page 8: Specifications

    UL 916 Certified System compatibility The Microset 4 sensors work with legacy VLCs and ROCs, but also support optional new features that require a new ROC to support. These features include transfer of CO2 data to the VLC, password protection of Service Mode, user control of LEDs, and data support for controlling a room’s windows and lights.

  • Page 9: Mounting

    Microset 4 can be installed. For example, architects may not understand how the placement of windows, doors, air registers, printers, and other equipment impact temperature sensors. Or if a Microset 4 can be installed in an all-glass atrium without regard for the direction of the sun.
  • Page 10 Figure 2 Install a closed-cell foam barrier between the Microset 4 backplate and the wall. Figure 3 Completely cover all holes in the Microset 4 backplate to safeguard against air infiltration. Alerton recommends the M-D Light Switch Sealers model #03434 (or equivalent closed-cell foam).
  • Page 11 Figure 5 Backplate mounting dimensions. NOTE Microset 4 with CO2 sensor is larger: 3.040 in. (77.22 mm) wide, 4.536 in. (115.22 mm) high, and 1.27 in. (26.08 mm) or 1.243 in. (31.58 mm) deep. Two screws attach the backplate to an electrical box, mud ring, or other mounting surface.
  • Page 12 See the mounting template in Figure 7. New Construction In new construction, rough-in for the Microset 4 is standard 2 in. x 4 in. (50.8 mm x 101.6 mm) single gang wiring box or a single-gang mud-ring. Skip to Step 6.
  • Page 13 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Gently tap anchors into the pilot holes until flush with the wall. Pull the wires through the wiring opening, and position the wallplate over the mounting holes. Insert the screws into the holes and tighten.

  • Page 14: Wiring

    This is known as line loss. The wire size is based on the length of the wire run and the current draw of the Microset 4. Use Figure 9 to determine wire size;...

  • Page 15: Ms/Tp Lan Wiring

    Each MS/TP Microset 4 employs a high-quality EIA–485 transceiver and exerts unit load on the MS/ TP LAN. The maximum number of MS/TP Microset 4 units that can be installed per MS/TP segment depends on the device the MS/TP Microset 4s are being connected to. Refer to the BACtalk System Design Guide, LTBT-TM-SYSDSGN, for more information, or the user documentation of the global controller that provides the MS/TP trunk to determine how many devices it can support.

  • Page 16: Terminating Ms/Tp Lan Cabling

    VLC-1188-S may require UL-864 listed terminating resistors. Shield grounding Ground shield drain wire at single point earth (panel) ground, not Microset 4 ground. Tape off shield drain wire at other end. Tie shield drain wire through at each MS/TP Microset 4.

  • Page 17: Wiring The Wall Sensor

    Mounting the wall sensor on the wallplate Insert Microset 4 tabs into backplate slots. See Figure 11. Push bottom of Microset 4 until it clicks into position. See Figure 11. (Optional) Install security setscrew. © Honeywell LT-MS4IOG Rev. 04 | Revised October 2015...

  • Page 18: Operational Overview

    Operational overview The Microset 4 operates in one of nine modes. In each mode, the Microset 4 displays data and has operational features unique to that mode. Operating modes are listed in Table 5 on page 20 and Table 6 on page 21.

  • Page 19: Housekeeping Override Operation

    Outside air temperature (OAT) display For OAT read at another unit to display at the Microset 4, the OAT value must be written in BCM DDC to the Present Value of AV-103 in the Microset 4 or the VLC. Set AV-103 to -100 to disable the OAT display.

  • Page 20: Operating Mode Specifics

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Operating mode specifics This topic provides LCD, button operation, for each of the operating modes. Use Table 5 to compare operating mode features. Use Table 6 on page 21 to determine values to set for enabling each operating mode.

  • Page 21: Enabling Operating Modes

    Office modes are typically used in commercial use environments. Screens might not appear on the Microset 4 in the order shown, or at all, depending on Microset 4 model, configuration, and settings. © Honeywell LT-MS4IOG Rev. 04 | Revised October 2015...
  • Page 22 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 M1—Office, No Fan Control, Occupied Set BV-64 ON and BV-65, BV-80, and BV-81 OFF. The screen in the Across the Room View shows the value of occupant-selected space temperature setpoint (AV-90) or the room temperature (AV-101) alternating with the current time-of-day (if enabled).
  • Page 23 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 M3—Office, No Fan, Occupied, ON/OFF Set BV-64 and BV-65 ON and BV-80 and BV-81 OFF. When the unit is displaying the Across the Room View, the occupant can press anywhere on the screen to display the ON/OFF screen. Once at the...

  • Page 24: Hotel Modes

    Hotel modes Hotel modes have a feature set typically used in the hospitality industry. Screens might not appear on the Microset 4 in the order shown, or at all, depending on Microset 4 model, configuration, and settings. M6—Hotel, No Fan, Rented Set BV-64 and BV-81 ON and BV-80 OFF.
  • Page 25 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 M7—Hotel, No Fan, Vacant Set BV-81 ON and BV-64 and BV-80 OFF. The unit controls HVAC equipment to maintain space temperature within unoccupied heating and cooling setpoints. The display is blank. This mode’s counterpart is M6, which is activated by setting BV-64 ON.
  • Page 26 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 M9—Hotel, Fan, Vacant Set BV-64 OFF and BV-80 and BV-81 ON. The Across the Room View screen s blank, the fan screen shows Auto, which cannot be adjusted, ad the Temperature screen does not allow adjustment of the space temperature setpoint.

  • Page 27: Operating Mode Screens

    DOWN Screen and icons might not appear on the Microset 4 in the order shown, or at all, depending on Microset 4 model, configuration, and settings. Across the Room View - Occupied screen If BV-82 is turned on, Current Setpoint or Current Room Temperature and Current Time will alternate approximately every 4 seconds.
  • Page 28 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 The Across the Room View for ON/OFF modes M3 or M6, in the OFF state: ON/OFF Status Unoccupied or Vacant Across the Room View screen In an unoccupied or vacant room, the default screen display is blank with the green status light on. The status light can be disabled by setting BV-85 active.
  • Page 29 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 The occupant can press the navigation arrow to scroll through the additional screens and LEFT RIGHT change their values as normal. Operation when OFF The LCD displays the word OFF. The unit controls to unoccupied setpoints.
  • Page 30 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 The after-hours timer automatically resets to zero if the zone is set to occupied (BV-64 ON). Housekeeping Override (hotel mode): Press the up arrow to set the override timer to the 0:00 limit set in AV-97.
  • Page 31 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Fan speed mode HIGH Current fan speed value. MEDIUM Press the up or down arrows to increase or decrease the fan speed. AUTO (If any value other than HIGH is selected, the up arrow will be visible.) Fan Speed screen is active.
  • Page 32 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Air Quality screen Current CO level. AIR QUALITY Air Quality screen is active. Press the left arrow to move Press the right arrow to move to the previous screen. to the next screen.
  • Page 33 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Lights screen Press the on/off button to turn on or off the lights. Light bulb icon changes (If ON is selected, the when when lights are down arrow will be visible.) turned on or off.

  • Page 34: Setting The Mac Address And Bacnet Device Instance

    Setting the MAC address and BACnet device instance (MS4-TH-MSTP only) Set the MAC address and BACnet device instance on the display using the MAC/Device Instance screens in field service mode. NOTE: There are no DIP switches on the Microset 4. NOTE Two-digit codes only used for Custom Codes settings.

  • Page 35: Service Mode

    Service Mode can be secured using an optional password when the Microset 4 is attached to a VLC with new ROC. If the Microset 4 is attached to a VLC without the new ROC support, the password screen is not available.
  • Page 36 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 If the password entered is incorrect, the user will see this screen. Press any key to return to the password screen. After 45 minutes of inactivity, the Password screen and the Incorrect Password screen will exit automatically.
  • Page 37 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 To adjust values of variables within each mode (Field Service, Balance, Custom Codes, and Settings) Press the Field Service, Balance, Custom Codes, or Settings button on the screen. (Balance button not available in MS4-TH-MSTP model.) Press the navigation arrow until the variable you want to adjust appears.

  • Page 38: Field Service Mode

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Field Service mode Field Service mode enables technicians to query and adjust key operating settings in the Microset 4. In Field Service mode a technician uses the buttons to scroll through variables (one screen for...
  • Page 39 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 To start Field Service mode Enter Service mode. Press the F button on the screen. IELD ERVICE 11:30AM 11:30AM MODEL: MS4-TH-MSTP MODEL: MS4-TH ROC: 1.00 BLD 18 ROC: 1.00 BLD 18 BOOT: RL 1.00 BLD 2 BOOT: RL 1.00 BLD 2...
  • Page 40 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Press the navigation arrow to accept your change and scroll to a different LEFT RIGHT variable. To exit Field Service mode • Press the navigation arrows simultaneously to return to the Service Mode Menu,...
  • Page 41 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Service Mode Menu Screen Field Service Selected BACnet Dev BACnet Dev Information MS/TP Instance Instance High Occupied Occupied Current Current Occupied Setpoint Setpoint Cooling Heating Setpoint High Limit Low Limit Setpoint Setpoint Unoccupied...

  • Page 42: Balance Mode

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Balance Mode Balance mode is similar to field service mode, except the data list is shorter, and the cold- and hot-duct VAV airflows are adjustable. Airflow balancing technicians can use this mode to calibrate the box and to set the high and low airflow limits while in the zone.

  • Page 43: Custom Codes Mode

    • Lights (enable/disable) • Windows (enable/disable) • Offset (adjust to ±2 °F). Offset is a setting in the Microset 4 that allows an optional temperature bias adjustment to compensate for a difference between the Microset’s temperature measurement and other room thermometers. It allows a service technician to set any value between -2.0 and +2.0 °F, with 0.1 degree resolution, to be added to the actual room temperature measured by the Microset.
  • Page 44 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 To exit Settings mode • Press the button, or the navigation arrows simultaneously to return to the EXIT LEFT RIGHT Service Mode menu. • After 45 minutes of inactivity, Settings mode will exit automatically.

  • Page 45: Locking The Screen

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Locking the screen To access the Lock Screen option, press and hold anywhere on the Across the Room View screen for 4 seconds. The Lock Screen option will appear. Press the button on the screen to lock the touch screen for 30 seconds.

  • Page 46: Bacnet Object And Property Reference

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 BACnet object and property reference This section shows the BACnet objects available in the MS/TP Microset 4. The tables that follow list individual points and give details about the properties of each object listed.

  • Page 47: Object Properties

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 Object properties Device object properties PROPERTY ACCESS NOTES Object Identifier Object Name Object Type System Status OPERATIONAL Vendor Name Alerton Vendor Identifier Model Name MS4-TH MS4-TH-NL MS4-TH-MSTP MS4-THC Firmware Revision RL 1.00 (build x) Application Software Version 1.00 (build y)
  • Page 48 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 AI-object properties Applies to AI-0 only since that is the only analog input object in the Microset 4. PROPERTY ACCESS NOTES Object Identifier Object Name AI-0. Object Type Present Value Value handled as described in the sequence of operation...

  • Page 49: Bv And Av Assignments

    INSTALLATION & OPERATIONS GUIDE | MICROSET 4 BV and AV assignments Each Microset 4 has a number of pre-assigned data points—Binary and Analog Values (BVs and AVs). These data points are available from the Microset 4 as BACnet objects; BACnet-compliant devices can access the properties of these objects.
  • Page 50 AV-110 = 24–31, Red LED is ON The temperature read by the Microset 4 is available as AI-0. BV-75 controls transfer of AI-0 to AV-101. Typically, this is a demand offset value controlled by a BACtalk demand limiting program or by an global controller DDC demand limit- ing algorithm.

  • Page 51: Troubleshooting

    Solar exposure heats the sensor. Microset 4 is mounted near a window • Physically move the Microset 4 so it is or glass door where it sits in direct not installed in direct sunlight. sunlight for at least part of the day.

  • Page 52: Appendix

    Figure 30 Dimensions in inches (millimeters): Microset 4 vacuum-formed foam air barrier with a pre-cut slit for wires. Installing the foam barrier The foam barrier fits onto the Microset 4 wallplate and has a pre-cut slit in the foam to allow wires to pass through easily during installation.
  • Page 53 INSTALLATION & OPERATIONS GUIDE | MICROSET 4 To install the MS4-FOAM: Position the foam barrier onto the wall side of the Microset 4 wallplate with the vacuum- formed foam fit over the terminal block protrusion near the center. Insert the wires through the pre-cut slit in the foam.
  • Page 54 Alerton.com 16201 25th Ave. West Lynnwood, WA 98087 (425) 921-4900 Fax: (425) 921-4872 tech.support@alerton.com...

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