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Honeywell Excel 10 Quick Manual

Vav ii balancing controllers
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See also: Instruction and Installation Manual
Excel 10
VAV II Balancing
Controllers
QUICK GUIDE
INTRODUCTION
The Honeywell Excel 10 VAV II Balancing Quick Guide
is intended to act as a on-the-job help for VAV Air
Balancers, Contractors, and Honeywell Technicians
balancing the Excel 10 VAV II family of controllers
using E-vision, L
S
™, or the hand-held tool. The
ON
PEC
guide covers general troubleshooting tips, rules of
thumb, and step-by-step guides of these tools. The
guide is not intended to replace the Excel 10 VAV
software tools User Guides, but rather to act as a
supplement.
74-3965
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Summary of Contents for Honeywell Excel 10

  • Page 1 ™, or the hand-held tool. The guide covers general troubleshooting tips, rules of thumb, and step-by-step guides of these tools. The guide is not intended to replace the Excel 10 VAV software tools User Guides, but rather to act as a supplement.

  • Page 2: Troubleshooting Tips

    IMPORTANT • Excel 10 VAV II Controllers must have an air flow pickup table downloaded to ensure accurate balancing. Configuration tools do not automatically install the flow pickup table defined for the controller.

  • Page 3: Disconnecting Airflow Pickup Tubes

    Disconnecting Airflow Pickup Tubes Anytime the airflow pickup tubes are disconnected from the controller, the controller should be powered down. There is no chance of damage to the controller, but if the controller is exposed to unusually high static pressure (< 5.0 in. w.c.) when one pickup tube is connected there is a very slight possibility that the controllers sensing process will stop operating.

  • Page 4: Erratic Or Unstable Airflow Or Zero / "Invalid" Display After Balancing

    Table 1. Setpoint Guidelines. Airflow Setpoint Rule Maximum Maximum airflow setpoint cannot result in a duct velocity greater than 3500 fpm Maximum airflow setpoint must be greater than the Minimum airflow setpoint Minimum Minimum airflow setpoint cannot be set to zero for balancing Minimum airflow setpoint should be less than or equal to 80% of the Maximum...

  • Page 5: Airflow Sensor

    Minimum Airflow Setpoint too Close to Maximum Airflow Setpoint Decrease the value of the Minimum Airflow setpoint and repeat the minimum airflow balance procedure. Airflow Velocity Less Than 200 fpm Check the velocity at the minimum airflow setpoint. If the minimum airflow velocity is at or below 200 fpm, try increasing the minimum airflow setpoint.

  • Page 6: Balancing Excel 10 Vav Ii With S7751A Hand-Held Tool Version 2 (Hht2)

    TURN ON HHT2 SELECT HHT2 FUNCTION SELECT "CHANGE AUTHORIZATION" SELECT "BALANCE VAV2" ENTER AAAA* PRESS TOP MENU BUTTON SELECT "EXCEL 10" SELECT EXCEL 10 TO BE BALANCED THROUGH ENTERING NODE #, NEURON ID, OR IF A NON-NETWORKED CONTROLLER, USE STANDALONE ID 74-3965...
  • Page 7 PRESS ANY KEY THEN SELECT "BALANCE VAV2" CHECK TROUBLESHOOTING SELECT "MAXIMUM" AND RULES OF THUMB; MAKE CORRECTIONS AIRFLOW STABILIZED, INDICATED BY THE HHT2 BEEP? ENTER MEASURED VALUE IN CFM AND PRESS ENTER SELECT "PREVIOUS MENU" CHECK TROUBLESHOOTING SELECT "MINIMUM" AND RULES OF THUMB; MAKE CORRECTIONS AIRFLOW STABILIZED,...

  • Page 8: Balancing Excel 10 Vav Ii With Lonspec/Vav Plug-In

    BALANCING EXCEL 10 VAV II WITH LONSPEC/VAV PLUG-IN NOTE: The standard commissioning and flow table download steps must be completed before starting this task. See L User Guide, Form 74-2937. START LAUNCH LONSPEC / VAV II PLUG-IN HIGHLIGHT "HONEYWELL VAV2 CALIBRATE"...
  • Page 9 SELECT "MAXIMUM" UNDER THE ACTION WINDOW CLICK THE "START" BUTTON STABLE FLOW IS NOT YET REACHED MEASURED FLOW BOX TURNED WHITE? MAXIMUM AIR BALANCE ENTER STABLE FLOW MEASURED VALUE CLICK THE "CALIBRATE" BUTTON UNDER THE ACTION WINDOW SELECT "MINIMUM" CLICK THE "START" BUTTON STABLE FLOW IS NOT YET REACHED...

  • Page 10: Balancing Excel 10 Vav Ii With E-Vision

    BALANCING EXCEL 10 VAV II WITH E-VISION NOTE: The standard commissioning and Flow table download steps must be completed before starting this task. See E-Vision User Guide, Form 74-2588. START DOUBLE CLICK E-VISION SELECT A VAV II CONTROLLER FROM THE NETWORK DIAGRAM CLICK MENU ITEM "CONTROLLER"...
  • Page 11 FROM THE CALIBRATION DIALOG BOX CLICK THE "MINIMUM" BUTTON STABLE MINIMUM FLOW REACHED BALANCE ENTER MEASURED FLOW IN CFM AND THEN CLICK CALIBRATE FROM THE CALIBRATION DIALOG BOX CLICK THE "SETPOINTS" BUTTON IF YOU WANT TO CHANGE THEM TYPE NEW VALUES FOR THE MAX AND MIN FLOW SETPOINTS CLICK CLOSE STOP...
  • Page 12 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 Printed in U.S.A. on recycled paper containing at least 10% 74-3965 B.B. 8-03 post-consumer paper fibers. Copyright © 2003 Honeywell International Inc. All Rights Reserved www.honeywell.com...

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