Vixen Air VXO4840DB User manual

VXO4840DB
INSTALLATION GUIDE
PAGE 1 of 5
BEFORE BEGINNING YOUR INSTALLATION
Read through the instruction guide before getting started with the installation. Professional installation is recommended for
this product.
CONTENTS
200 PSI Air Compressor (Black) x 2
4 Gallon Pancake Air Tank
170-200 PSI Pressure Switch
1/4" NPT Wing Style Drain Valve
Intake Air Filter with Remote Installation Kit (10 FT
Hose) x 2
4-PIN 12V/40A Relay with Pre-wired Plug x 2
40A In-line Fuse with Waterproof Holder x 2
60A In-line Fuse with Waterproof Holder x 1
Mounting Hardware
SAFETY INSTRUCTIONS
Do not attempt to disassemble, repair or customize this product.
Avoid setting up any parts of this product where there is a risk of falling off or risk of coming in contact with water.
Avoid reaching out to touch or pick up any fallen or water submerged parts.
Never leave this product unattended during use.
Intended for use by adults only.
During and immediately after use, avoid touching any part of the compressor with bare hands as it is very hot
during such periods.
Avoid use of product near flames, explosive materials, aerosol products or oxygen devices.
Be sure to pump nothing other than atmospheric air.
It is important to determine the maximum air pressure for any tool or attachment before using it.
Air sprayer or nozzle should always be pointed away from any part of the body.
Compressors has Thermal Overload Protection, if this protection activates, cut off the source of power and let the
unit cool down for about 30 minutes. This will reset the system and allow you to safely resume use of the air
compressor.
Make sure your battery ground is detached and the tank has no pressure before you begin the installation.
Employ equipment for eye protection during drilling operations.
Ensure that your air system has no pressure before you begin.
The specific voltage requirement for this on-board air system is 12 volt DC, therefore installation must be done to
a DC power source of 12 volts.
PLANNING YOUR INSTALLATION
Before beginning the installation, determine each component’s spot.
Confirm you have the proper length of airline and wire.
Power wire to compressor should be kept short.
To power up the air compressor, make sure you use a 12-gauge wire or thicker.

VXO4840DB
INSTALLATION GUIDE
PAGE 2 of 5
COMPRESSOR
MOUNTING
Determine a dry place to mount your compressors. If you have chosen to install in the engine compartment,
you should mount it as close to the front as possible to allow for maximum flow of air around them and also to
avoid heat from the exhaust. IMPORTANT: Never attach the compressors to any plastic or other flexible
material.
For optimal results, the compressors should be placed as close to the battery as possible. This will reduce the
amount of wiring needed.
Avoid placing compressors near flammable liquids.
If you are planning to move compressor’s air intake to an area other than where the compressors were
installed, make sure your placement allows for the airlines to be routed from the air inlet of the compressors
to the remote inlet air filters.
Mark the spots for the holes with the mounting base as a guide and then drill. Make sure both compressors
are secured.
To enhance performance and make sure the battery of your vehicle doesn’t discharge, keep the engine
running while the compressor is being used.
BRAIDED HOSE INSTALLATION
Connect the stainless steel braided hose of the compressor to the tank’s inlet ports.
IMPORTANT: The tank’s inlet ports must be 3/8" N.P.T. (National Pipe Thread).
REMOTE AIR FILTER INSTALLATION KIT
Only use if you need to move compressor’s air intake to an area other than where the compressor was installed.
A. Braided Hose Bracket with Self-Anchoring Pin (1 pc)
B. 3/8" NPT Female x 3/8" Barbed Tube Fitting (1 pc)
C. 3/8" NPT Male x 3/8" Barbed Tube Fitting (1 pc)
D. 3/8" OD Air Line (1 pc)
E. Air Line Clips (3 pcs)
F. Air Line Clips Screws (3 pcs)
G. Remote Inlet Air Filter with Filter Element (1 pc)
H. Remote Filter Holder with Self-Anchoring Pin (1 pc)
I. Filter Elements (2 pcs)
J. Remote Filter Holder Screws (2 pcs)
10 feet of air line is enclosed for attaching the remote air filter.
Find an installation location for the remote air filter, ensuring that the location should be dry and far from a
heat source.
Use a hose cutter, a razor blade, or a sharp knife when trimming the airline. A clean, square cut is optimal.
IMPORTANT: Do not use wire cutters or scissors to cut the air line, these tools may flatten or crimp the air
line causing it to leak.
Place the airline all the way onto the barbed fittings or at least, until it covers two ridges and starts routing the
air line.

VXO4840DB
INSTALLATION GUIDE
PAGE 3 of 5
AIR TANK
MOUNTING
Find a convenient mounting location in your vehicle for the air tank. This tank was specifically designed to be
install on the spare tire compartment. Ensure ports are reachable before drilling any holes.
Mark the location of holes using the mounting bracket of the air tank as a template, and then drill to size.
Using mounting hardware provided, secure the air tank. IMPORTANT: Do not mount on a flexible material.
PORT LOCATIONS AND THREAD SIZE (NPT)
PRESSURE SWITCH RATING
The included pressure switch has a rating of 170 PSI ON, 200 PSI OFF. When the air pressure in the air tank
is below the preset ON pressure (170 PSI), the compressor will automatically turn on and will start pumping
air into the tank. When the pressure reaches the cut OFF pressure (200 PSI), the compressor will be
automatically shut off.
DRAIN VALVE
This valve helps you drain the water that can collect in the air tank after long periods of use.
REMOVING CONDENSATION:
To remove any condensation which has accumulated inside the tank, bleed the tank’s pressure until it ranges
from approximately 5 PSI to 20 PSI.
Remove the drain valve found at the tank’s bottom to drain the water from the tank. After draining the
accumulated condensation, reinstall the drain valve.
IMPORTANT: Draining the system regularly will extend the life of the air tank.
MAINTENANCE
Make sure that electrical and fitting connections are regularly inspected, cleaned and tightened when needed.
Make sure mounting screws are regularly tightened if needed.
Drain weekly, to avoid excessive buildup of condensation.
Compressor features a washable air filter which should be cleaned using any mild form of liquid soap every
two months if it gets dusty. Just remove the front cover of the filter’s housing to reach it. Replacement time
frames depend on the operating environment and how often it is used.
Clean dirt and dust from heat spreader and motor housing of the compressor.
The motor of the air compressor has a maintenance-free lasting lubricant. DO NOT LUBRICATE.

VXO4840DB
INSTALLATION GUIDE
PAGE 4 of 5
ELECTRICAL CONNECTION
COMPRESSOR
Red wire (positive) of the compressor is connected to PIN 87 on the relay. IMPORTANT: Make sure to use
wire that is as heavy as the wire of the compressor
Black wire (negative) of the compressor and PIN 85 of the relay are connected to ground.
Repeat above steps for the second compressor.
Connect together PIN 86 of both relays and then connect it to one of the terminal of the pressure switch.
Attach the remaining terminal of the pressure switch to a power source in the vehicle that only gets power
when the vehicle’s ignition is on. Recommended connection points are: windshield wiper motor, blower motor
or an accessory terminal on the fuse panel. Make sure to use wire that is as heavy as the wire of the
compressor.
Connect together PIN 30 of both relays and connect it to a constant power source using the provided 60A
fuse.
Both compressors are now set for use and will turn on automatically when air pressure in the air tank falls.
When air pressure reaches maximum PSI, they will turn off. If compressors fails to reach the maximum air
pressure of the tank, which is the Pressure Switch's cut OFF pressure, check all air connections for leaks.
While compressor are pumping, use soapy water or any bubble solution to perform this check. In case the
leak remains after tightening, re-apply thread sealant.
NOTE: To makes installation fast, trouble free and professional, this kit comes with two Pre-wired Relay Plugs
(one for each relay), they will attach to the relay only in one position.

VXO4840DB
INSTALLATION GUIDE
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SOLUTIONS TO COMMON ISSUES
Issue: Compressor inoperable.
Solution 1: Check all switches to make sure they are ON.
Solution 2: Check the fuse; if blown, disconnect compressor from power and replace the fuse.
Solution 3: Allow compressor to cool off for 30-60 minutes.
Solution 4: Check pressure switch, replace if damaged or inoperable.
Issue: Excessive moisture on suspension valves or safety valve.
Solution 1: Depressurize and drain the tank.
Solution 2: Relocate the compressor to a drier location.
Issue: Continual cutting-off of Thermal overload protection.
Solution 1: Relocate the compressor to a drier, cooler location.
Solution 2: Replace the compressor.
Issue: Excessive vibration or noise
Solution 1: Tighten system components.
Solution 2: Replace the compressor.
Issue: Loss of pressure of tank when compressor is shut off.
Solution 1: Tighten drain cock.
Solution 2: Examine the check valve and replace if damaged or leaking.
Solution 3: Use soap and water solution on air connections, and tighten connections or repair leaks where needed.
Solution 4: Replace safety valve if present in the tank, it may be defective.
Issue: Compressor runs continuously and has low air flow.
Solution 1: Decrease the frequency of use.
Solution 2: Use soap and water solution on air connections, and tighten connections or repair leaks where needed.
Solution 3: Clean or replace the air filter element if it is clogged.
Solution 4: Replace compressor.