Programming instructions

24
Configuring relays for heating, cooling, and duty cycle
Relays configured for heating can control equipment such as electric or gas heaters that can be either
on or off. The relays switch on when the temperature drops below the set point and off when it rises
above.
Relays configured for cooling can control single-speed fans, misters, or other cooling equipment that
can be either on or off. The relays switch on when the temperature rises above the set point and off
when it drops below.
Relays configured for duty cycle control equipment as described above, but also use on durations and
off durations.
Configuring relays means:
 Selecting the relay function
Heating, cooling, duty cycle heating, or duty cycle cooling
 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.
 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 heating, cooling, or duty cycles, read Programming
heating, cooling, and duty-cycle relays on page 56.
To configure relays for single-stage heating and cooling
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.