Installation Guide

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2
230VAC Air Compressor Wiring Instructions (continued)
PRESSURE SWITCH WIRING INSTRUCTIONS
1. Turn switch to “off” position.
2. Loosen phillips head screw from cover.
3. Remove cover.
4. Loosen cord clamp on rear of switch and route the
correct gauge wire (see Wire Size Chart on previous
page) through the clamp opening. Keep the wire length
as short as possible to allow the wires to fit under the
switch cover when re-assembled.
5. Install ground wire to the pressure switch metal body
using the supplied ground screw. Torque the ground
screw between 25-30 in/lbs and confirm the
connection is tight.
6. Loosen both screws noted as “line” on the pressure
switch.
7. Install/crimp insulated fork terminal to the black and
white wire you have chosen to use for electrical
connection.
a) Use fork style insulated terminal rated for the
correct gauge wire you are using. (see Wire Size
Chart on previous page)
b) Wire will need to be stripped to correct length prior
to crimping terminal to the wire. Refer to terminal
instructions provided by terminal manufacturer for
correct strip length.
8. Slide fork terminal into the proper location in the
pressure switch and tighten screws between 22-26
in/lbs.
9. Pull on wires and confirm the connection is tight and
terminals are crimped properly to the wires.
10. Once all connections are confirmed, verify wire lengths
in the switch are as short as possible. This will allow
the switch cover to be re-installed properly. If the
lengths are too long, it will not allow the cover to be
installed completely onto the switch.
11. Tighten cord clamp screw to 15-25 in/lbs.
12. Install pressure switch cover. Tighten the cover screw
snug.
13. Rotate the switch knob on and off several times to
ensure proper rotation before providing electrical
power to the compressor.
WARNING: The instructions provided
below are intended to aid a certified
electrician who is familiar with all
applicable electrical codes. Do not
attempt unless you are a qualified
eletrician. Before performing the
following steps make certain electrical
power has been shut off. Confirm with a
voltage meter that no power is being
supplied from the circuit.
14. If the switch knob does not rotate freely verify the wire
lengths again inside the switch. Refer to step 10
15. Once all the above steps are complete and performed
correctly, power can be provided to the compressor.