4. Electrical Power Supply
48 PNEG-900 Series 2000 Autoflow Fan/Heater and Control Installation Instructions
Master to Slave Interconnect
A slave fan/heater unit can be added to operate in unison with the master fan/heater unit. The interconnect
between the master and slave fan/heater units remains the same regardless of the type or presence of a
control center. To wire a slave fan/heater unit to a master 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 master fan/heater unit to the slave fan/heater unit.
2. Connect the wires as shown in Figure 4L.
NOTE: A shielded 16 gauge cable is recommended for use on the network connections. The network
connections for this configuration are attached to terminal #8 and terminal #9 in the master unit and
terminal #3 and terminal #4 in the slave unit. 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 #1 Fan and Heater Dip Switch Setting: #2 - “OFF”/All Others - “ON”
Figure 4L Wiring for a slave fan/heater unit to a master fan/heater unit.
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