Grain Systems PNEG-900 - Manual (Page 49)

4. Electrical Power Supply
PNEG-900 Series 2000 Autoflow Fan/Heater and Control Installation Instructions 49
Slave to Slave Interconnect
A second slave fan/heater unit can be added to operate in unison with the master fan/heater unit and
another slave fan/heater unit. This would create a three (3) fan unit. The interconnect between the first
slave fan/heater unit and the second slave fan/heater unit remains the same regardless of the type or
presence of a control center. To wire a second slave fan/heater unit to another slave fan/heater unit do
the following:
NOTE: Do NOT use solid wire for interconnection.
1. Run four (4) 16 gauge MTW type wires from the first slave fan/heater unit to the second slave
fan/heater unit.
2. Connect the wires as shown in Figure 4M .
NOTE: A shielded 16 gauge cable is recommended for use on the network connections. The network
connections for this configuration are attached to terminal #7 and terminal #8 in slave #1 and
terminal #3 and terminal #4 in slave #2. 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
Slave #2 Fan and Heater Dip Switch Setting: #1 and #2 - “OFF”/
All Others - “ON”
Figure 4M Wiring for a second slave fan/heater unit to another slave fan/heater unit.