Programming instructions

22
Configuring relays for curtain control
Curtains are usually controlled by equipment called curtain machines, which are sometimes referred
to as winches. Curtains are opened to let in more air, or closed to let in less air. The theory behind
curtain control is more air cools the building.
Each curtain machine requires two relays: one for opening the curtain, one for closing the curtain.
Configuring relays for curtain control means:
 Selecting the relays
 Entering a descriptive name
A good description helps you identify the stage more easily.
 Enabling tunnel mode (if required)
For more information about tunnel mode, read Programming tunnel mode on page 34.
 Enabling rain detection (if required)
For more information about rain detection, read Enabling additional probes, deicing, and rain
detection on page 16.
 Use the Installation and configuration worksheets when configuring Power
Blocks. The worksheets are in the back of the Power Block installation guide.
 For more information about curtain control, read Programming relays for curtain
control on page 53.
To configure relays for curtains
1. In the main window, click Configuration, and then Ventilation.
2. Below Your Power Blocks, select the Power Block you want to configure and then click Configure
Power Block.
The Power Block configuration window displays.
3. Click Edit relay for the relay you want to configure as the curtain open relay.