© 2022 All rights reserved. Data subject to change without notice.
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Rev. B | 2022.03
LPT-M - Operation Manual
Enter to save and Exit.
6.9 Relay Operation
The LPT-M has one dry contact relay that are designed to operate fans or to
control equipment that draws no more than 3 volts, 2 amps max at start-up and
/ or operational current. The system does not provide any power from these
terminals. Dry contacts operate like a switch to simply activate (switch on) or
de-activate (switch off) equipment to be controlled, such as fan starters.
The relay is SPDT (single pole, double throw) thereby providing one set of
usable dry contacts for the relay. Because the LPT-M system is designed to be
fail-safe, any equipment to be controlled by the system relay should be wired to
the “NC” (Normally closed) and “COM” (Common) terminals.
The relay coils are
normally energized in non-alarm state for failsafe operation.
6.9.1 Enable / Disable Relay
The relay in the LPT-M can be enabled or disabled. The factory default for the
relay setting is enabled. If the relay is disabled it will not be able to be controlled
by the BAS / DDC.
In the Hardware Configuration Menu (passcode 1001), press either ARROW to
scroll through the menu and select Program Relay. Press ENTER to select.
