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98C AIR COMPRESSOR INSTALLATION

Your Ultra Light Duty Onboard Air System comes complete with a 98C, 10% duty cycle compressor. 

Please follow the installation instructions that follow to enjoy the best use of your onboard air system.

CAUTION - To reduce risk of electrical shock or electrocution:

-  Do not disassemble the compressor.  Do not attempt repairs or modifications. 

    Refer to qualified service agencies for all service and repairs.

-  Do not use this product in an area where it can fall or be pulled into water or liquids.

-  Do not reach for this product if it has fallen into liquid. 

-  Use this compressor with 12-volt DC systems only.

-  This product should never be left unattended during use.

Guidelines for Selecting Mounting Location:

The selection of proper mounting location for your air compressor will help ensure a long

and trouble free compressor service life. Please pay close attention to the following:

-  Select a FLAT, UPRIGHT & SECURE LOCATION where the compressor can be mounted.

-  To maximize air compressor performance, install compressor as CLOSE TO THE BATTERY 

  as possible so that length of positive lead wire is as short as possible.

-  This compressor is moisture & dust resistant, but NOT WATERPROOF or DUSTPROOF. 

  Do not mount compressor in locations where the unit is likely to come in contact with water or excessive dirt.

-  If it is necessary to mount the air compressor further from the battery, such as inside your vehicle or in  

 

  the bed of your pickup, VIAIR recommends using wire larger than 12 AWG as a positive lead for 

  remote installation.

-  Do not mount compressor near areas where flammable liquids are stored.

-  Use thread sealant for proper fitting installation. Thread tape is not recommended.

  Properly sealed, recommended torque for 1/4" and 3/8" is 12~15 ft. lbs. 

  Recommended torque for 1/8" is 10~11 ft. lbs.

98C Compressor Wiring: (See Figure 3 on back of manual)

1.   Disconnect ground cable from vehicle’s battery.

2.   Temporarily position the air compressor in the location where it will be mounted.

3.   Route ground wire to the negative post of the battery or to an appropriate grounding point and 

    cut ground wire to length as needed.

4.   Mount the 98C air compressor with the two 13/64" (5 mm) bolts, nuts, washers, and locking washers  

 

    provided. Use of thread locker is recommended.

5.   This air compressor comes with a heavy duty heat resistant stainless steel braided leader hose. This leader  

    hose is designed to prolong the life of your air line. Do not remove this leader hose from air compressor.

6.   IMPORTANT: Please note; the leader hose that came with your compressor has a built-in inline check valve  

    pre-installed. Do not remove inline check valve from leader hose.

7.   To mount hose bracket, drill holes with 3/16" drill bit and push self–anchoring hose bracket pin into hole.    

    Route leader hose through hose bracket and secure hose by pressing bracket clamp into locked position.

8.   To remove hose from the hose bracket, simply press down on the hose clamp release tab to release  

 

    bracket clamp.

9.   Connect compressor’s positive lead wire to one of the leads of your pressure switch.

10. Make sure that your compressor setup is properly fused. The 98C pulls approximately 13 amps of power.

11. Always locate fuse as close as possible to power source.

12. Before connecting to power source, check to make sure that all connections are made properly.

13. Connect and test compressor system by running the compressor for a short time to build up pressure 

    in your air tank.

14. Once air pressure reaches preset cut out pressure of your pressure switch, the compressor will shut off.    

    Inspect all air line connections for leaks with soap and water solution. If a leak is detected, the air line may   

    not be cut squarely or pushed all the way in. Tighten connections if needed.

USER MANUAL

ULTRA-LIGHT DUTY ONBOARD AIR SYSTEM

Summary of Contents for 10000

Page 1: ......

Page 2: ...ns the parts needed for specific areas of installation and may contain smaller bags within each package for specific uses PARTS PACKAGES USER MANUAL ULTRA LIGHT DUTY ONBOARD AIR SYSTEM Package 1 Pressure Switch Relay A Pressure Switch 85 PSI on 105 PSI off 1pc B 40 amp relay 1pc REDUCER A O Package 2 Fittings C 1 4 NPT Drain Cock 1pc D 1 4 NPT 145 PSI Safety Valve 1pc E 1 4 NPT Compression Fitting...

Page 3: ... with a wrench Do not over tighten if your port fittings are made from brass since brass threads can be stripped Always release air from tank before servicing WARNING FAILURE TO DRAIN TANK AND REMOVE CONDENSATION WILL CAUSE TANK TO RUST PREMATURELY To remove accumulated condensation inside the tank bleed pressure from tank until pressure is approximately 5 PSI to 20 PSI using drain cock Drain wate...

Page 4: ...is 10 11 ft lbs 98C Compressor Wiring See Figure 3 on back of manual 1 Disconnect ground cable from vehicle s battery 2 Temporarily position the air compressor in the location where it will be mounted 3 Route ground wire to the negative post of the battery or to an appropriate grounding point and cut ground wire to length as needed 4 Mount the 98C air compressor with the two 13 64 5 mm bolts nuts ...

Page 5: ...et port of the tank to keep moisture from being able to seep back to the tank PRESSURE SWITCH WITH RELAY INSTALLATION Your VIAIR Ultra Light Duty Onboard Air System comes complete with a pressure switch and a 40 amp relay that will turn on the compressor at 80 PSI and off at 105 PSI The pressure switch has a 1 8 NPT inlet at the bottom that will need to be installed into the 1 8 NPT port of the T ...

Page 6: ...Y CYCLE Duty cycle refers to the amount of time a compressor can beoperated in a given time period at 100 PSI and a standard ambient temperature of 72 F It is commonly expressed in percentage format Compressor on time on time off time Duty Cycle ONE HOUR DUTY CYCLE MINUTES ON 100 PSI 72 F MINUTES OFF 9 5 Min On 55 Min Off 10 6 Min On 54 Min Off 15 9 Min On 51 Min Off 20 12 Min On 48 Min Off 25 15 ...

Page 7: ...lt tank to drain Drain tank more frequently 2 Move compressor to area with less humidity or use air line filter Compressor will not run 1 No power or power switch in OFF position 2 Blown fuse 3 Motor overheats 4 Faulty pressure switch 1 Make sure compressor switch is ON 2 Disconnect compressors from power source replace fuse Refer to Specifications section for correct fuse amperage 3 Let compresso...

Page 8: ... of the Manual shall be used reproduced translated converted adapted stored in a retrieval system communicated or transmitted by any means for any commercial purpose including without limitation sale resale license rental or lease without the prior express written consent of VIAIR VIAIR does not make any representations warranties or guarantees express or implied as to the accuracy or completeness...

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