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Opera ng Instruc ons
Not included
on all units
Pipe to tank outlet(s)
Manual OPEN/
CLOSE valve
Drain interval
Drain me
Filter access
Clean regularly,
see Fig. 13.
Improperly grounded electrical
components are shock hazards.
Make sure all the components are
properly grounded to prevent
death or serious injury.
9. Make sure proper overload protec on for the
motor is installed.
Wiring Installa on
Install power leads into terminals opposite motor
Figure 4: Auto Drain Feature
1. Plug auto drain into 120V outlet.
2. Set mers to desired se ngs. See
fi
gure 4.
If drain is used for mul ple units, increase
mer se ngs as needed.
3. Use test bu on to check proper opera n.
wires.
When wiring unit with magne c
starter, do not install power
directly to pressure switch to
avoid possible
fi
re and property
damage.
Refer to maintenance sec on for proper care.
Electrical Safety
Be sure only trained and
authorized personnel install and
maintain this compressor in
accordance with all applicable
federal, state and local codes,
standards and regula ons. Follow all NEC (Na onal
Electric Code) standards, especially those concerning
equipment grounding conductors.
1. Follow all NEC and local codes for electrical wiring.
Allow only authorized Flexzilla service person or
ce
fi
ed electrician to install electrical components.
2. Put unit on dedicated circuit and make sure
no other electrical equipment is wired into it.
Failure to wire unit on independent circuit can
cause circuit overload and/or imbalance in
motor phasing. Install proper No Fuse Breaker
(NFB) according to kW output of compressor.
3. Ensure incoming service has adequate ampere
ra ng.
4. Ensure supply line has the same electrical char-
acteris cs (voltage, cycles and phase) as the
electric motor.
5. Refer to amp load informa on on motor tag and
use correctly sized wiring.
Be sure to consider
distance between power supply and machine.
6. Install surge protec on device between power
supply and compressor motor.
7. Make sure to install properly sized breakers and
fuses.
8. The unit must be properly grounded. DO NOT
connect ground wire to air or cooling lines.
Ensure power supply and internal wiring is adequate
according to voltage and frequency stated on motor
nameplate and starter. Voltage should not vary more
than 12% to ensure proper opera on of compressor.
S
(Flexzilla 5 HP)
S
(Flexzilla Pro 7.5-10 HP)
ingle Phase Motors - No Magne c Starter
1. Connect
fi
rst power lead to 1L1.
2. Connect second power lead to 3L2.
3. Connect ground wire to exis ng motor ground wire.
Figure 5: Single Phase Wiring Diagram
without magne c starter
Single Phase Motors - With Magne c Starter
1. Connect
fi
rst power lead to 1L1. Leave exist-
ing jumper wire installed. See Figure 6.
2. Connect second power lead to 3L2. Leave
exis ng jumper wire installed.
3. Connect ground wire to ground lug.
4. Ensure all wiring and terminals are properly
ghtened.
220
1
2
1
2
3
4
5
6
TO ACTIVATE
WARRANTY
Scan or go to
for warranty registration
Warranty only valid by following conditions expressed in the Warranty Statement section of the Compressor Operating Manual.