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4. Electrical Power Supply

PNEG-900 Series 2000 Autoflow Fan/Heater and Control Installation Instructions 41

Autoflow to Master Fan/Heater Unit Interconnect

The master fan/heater unit is the only fan and heater in a single fan unit. In two (2) fan units it is the

fan/heater with the air switch, plenum temperature sensor and grain temperature sensor connected to it.

DO NOT run the control wires for the master fan/heater in the same conduit as the power wires for the fan

motor. To wire the master fan/heater unit to the Autoflow control box do the following.

NOTE: Do NOT use solid wire for interconnections.

NOTE: A shielded 16 gauge cable is recommended for use on the network connection. The network

wires for this configuration are attached to terminal #4 and terminal #5. Ground each end of the

shielded cable to the housing. A shielded 16 gauge 2 wire cable can be purchased from GSI.

Part #WR-16/2S.

1. Run five (5) control wires from the Autoflow control box to the master fan/heater unit.

2. Connect the wires as shown in Figure 4E.

Figure 4E Master Fan and Heater Dip Switch Setting: #1 - “OFF”/All Others - “ON”

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