10
1. Be sure fan unit is installed and
wired to meet local codes. Be
sure equipment is well grounded
(see page 9).
2. A separate neutral is required
for 120 volt heater circuit in 220
volt 1PH and 3PH fan units. For
460 volt fan units a separate 120
volt power supply or transformer
is required.
3. Run cord from heater unit to fan
unit and connect as shown in
Figure 2.
WIRING
HEATER UNIT
SERIES 2000 HEATER INSTALLATION
4. Third heater unit may also be
added to system. If adding third
unit, run connections to master
unit #1 and connect them in
parallel with secondary heater
unit.
2. Run (2) 20 gauge (minimum)
wires from secondary heater
unit (slave) to heater unit #1
(master).
3. Connect wires as shown in Figure 3.
1. Secondary heater unit runs as
a slave of heater unit #1 and re-
quires no plenum or grain tem-
perature sensor.
Figure 3: Secondary heater wiring diagram.
Figure 2: Wiring diagram for the fan and heater unit.
SECONDARY
HEATER UNIT
