Installation manual

• RDU Rear Connection
– Remove (6) Seal screws holding the back
panel of the RDU. This will expose the
inside of the RDU with the following
connectors:
• MCU Fiber Optic communication
cable (1) pair -- Orange, Blue
• I.S.Power cable (1) pair --- White 12
volts (Switch hot), Black (GND).
• [Optional] RTD Probe cable (3)
wires --2 - Reds, 1 - White (Only
used on temperature compensated
systems.)
RDU Rear Connection
systems.)
• [Optional] Valve Fiber Optic cable
(1) Blue Fiber Optic. (Only used on
systems with valves.)
MCU POWER RTD VALVE
INSIDE COVER
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