Greenheck GreenJet GJI Installation, Operation And Maintenance Manual page 5

Mixed flow jet fan
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Electrical
NOTE
All field installation and wiring of electrical equipment
must be done to meet NEC, CEC and local codes.
Must use appropriately sized wire for the full load amp
draw.
The GJI fan requires single phase 115, 208-
277V 50 / 60 Hz power. Amperage ranges
depending on voltage.
Particular attention should be given when
connecting power to the unit. Supply wiring
must be properly fused and conform to local
and national electrical codes.
Two electrical knockouts are located on the
side of the terminal box (Figure 4). Utilize one
knockout for motor power supply and the second for control wiring. Each set of wiring connections are to be run
separately into the unit.
To access the wiring terminal strip, remove the electrical access panel. Motor supply power and control wires are
connected to a terminal strip as shown in the wiring diagrams on the next page (Figures 7 and 8).
After the electrical connections have been made secure, reattach the access panel back into position.
115V
Phase
1 (Single)
Hz
50 / 60
Voltage
115
MCA
22.1
MOP
30
Potentiometer / Speed Dial Control
GJI model comes pre-wired from the factory for use with the potentiometer dial. The speed control is intended for
local control of fans and receives its power supply through terminals 1 (COM) and 2 (V-IN). The position to which the
rotary knob is turned produces a proportional control signal output to terminal 3 (V-OUT).
Figure 5 – Potentiometer mounted in terminal box
®
Electrical Conduit Knock-Outs
ELECTRICAL DATA
GJI-26
208-230/277
115V
1 (Single)
1 (Single)
50 / 60
50 / 60
208
230/277
115
12.2
11.0
36.0
15
15
50
Figure 6 – Control Wiring
Wiring for 0 - 10 VDC
Potentiometer
Dial Wiring
Figure 4 – Side Panel
Disconnect Switch
Lockable Cover Plate –
Nema 3R
Power
Control Wiring
GJI-50
208-230/277
1 (Single)
50 / 60
208
230/277
19.8
18.0
25
25
L
Incoming power
by others
GreenJet – Mixed Flow Jet Fan
H
5

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