PEC Plus user manual Configuring relays
31040003 37
To configure relays for curtain control
1. Press Function until the LED for CONFIGURATION is lit.
2. Press
Up or Down until rly is displayed and then press Select.
The display shows rly1.
3. Press
Up or Down until the relay you want to configure for opening
the curtain is displayed and then press Select.
The display shows the current configuration.
4. Press
Up or Down until (urt is displayed and then press Select.
The control returns to the Relay menu.
5. Press
Back once to return to the Configuration menu, or twice to
return to the main display.
Configuring relays for single-stage heating and cooling or
duty cycles
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 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.
For more information about duty cycles, read How normal duty cycles work on page 55.
If you need to connect more cooling elements than you have relays available, and
you are not using both variable stages, you can use an available variable stage as
an ON/OFF stage (for 120/230 VAC-powered equipment only). For more
information, read
Programming variable stages on page 46.
Use the
Relay configuration worksheet on page 88 when configuring relays.
rly1
CONFIGURATION
(urt
rly
RELAY1
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