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You are here: Using The System > FP AHU > First-time Setup (Physical) > Run FP AHU Discover Wizard

Run FP AHU Discover Wizard

  1. Auto Discover WEMScontroller4.
  2. Configure FP AHU Control Points.

This guide covers the first-time setup of an FP AHU, and assumes that a WEMScontroller4 has already been discovered and been through the Auto Build setup.

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  1. Go to Discovery | FP AHU Discover, and then click Next to begin the wizard.

The FP AHU Discover Wizard

  1. Select the type of interface for the FP AHU, and then click Next.

The FP AHU Discover Wizard

  1. Enter an appropriate description for the new FP AHU, and then click Next.

Currently for BT this description is the PIRM ID, which is a unique 8 digit reference number used to identify every piece of equipment in the BT Estate. The description entered in this field will appear when the pointer hovers over the FP AHU Object on the Floorplan.

The FP AHU Discover Wizard

  1. Enter a location for the new FP AHU, and then click Next.

The FP AHU Discover Wizard

  1. Select the type of FP AHU unit, and then click Next. ClosedMore information about FP AHU types …

    2. Options are split into three columns:

    1. DX FAU: for electrical cooling and fresh-air cooling
    2. Fresh Air: for fresh-air cooling only
    3. DX Only: for electrical cooling only

    The selection of Up-Flow (air supplied from the ceiling) or Down-Flow (air supplied from the floor) will change the appearance of the diagram that appears on the FP AHU Control Screen but will not influence the behaviour of the FP AHU unit itself.

The FP AHU Discover Wizard

  1. Select the stage for the FP AHU, and then click Next. ClosedMore information about stages …

    2. The stages 1-4 are predefined setpoints for the enable, fan speed and cooling relays to follow.

    Stage 1 (lead) will enable the relay outputs at lower temperature setpoints and will enable first, then stage 2 and so on up to stage 4 (lag), which enables at higher temperature setpoints.

    This is a strategy to maximize energy savings by enabling different AHUs that serve the same space at different temperatures. This can prolong the life expectancy of the units by switching the staging between them so that one unit does not always work harder than the others.

The FP AHU Discover Wizard

  1. Enter the asset name for the new FP AHU, and then click Next.

In the case of BT, the PIRM ID is entered again. This name will appear at the top of the Info Panel on the FP AHU Control Screen.

The FP AHU Discover Wizard

  1. Choose whether to send performance alarms, and then click Next.

The FP AHU Discover Wizard

  1. Set damper alarm values, and then click Next.

The FP AHU Discover Wizard

  1. Set DX alarm values, and then click Next.

The FP AHU Discover Wizard

  1. Click Next to the confirmation screen.

The FP AHU Discover Wizard

  1. Finally, click Finish to complete the FP AHU Discover Wizard.

The FP AHU Discover Wizard

Next Step

The FP AHU Discover Wizard is now complete.

The next step is to Configure The FP AHU Control Points.

WEMS User Guide version 4.0 20150130.
This guide relates to features up to and including 1.18.0.3