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Figure 6: Vent Machine Wiring
Notes:
• During normal operation, the RBU-27 SE connects L1 through PWR to the Platinum relays. During emergencies, the
RBU stops supplying power to the Platinum controller.
• The RBU-27 SE can only open the vent machines.
• If the vent machines operate backwards, swap the L1 and L2 wires at the Platinum relays or at the vent machine.
• Do not change the wiring on the vent machine left terminal.