Motor City Wash Works MCWW User manual

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
8MANULALTINS001 10-15-2020 www.motorcitywashworks.com 1
Dual Air Compressor w/Pressure Alternator
MCWW Alternator Enclosure
[8MANULALTINS001]
Notes and Safety Symbols
Where necessary, important points will be highlighted in this manual, using the following symbols:
NOTES: PROVIDES FURTHER INFORMATION!
WARNING! DANGEROUS SITUATION WHICH MAY CAUSE
EQUIPMENT DAMAGES, PERSONAL INJURIES OR
FATALITIES!
Always follow all “Notes”, “Warning” and instructions. Not doing so may have serious
consequences on the overall performance of the equipment and/or the safety of the people working
on the equipment!
Electrical Specs:
Alternator Enclosure…………………………….……………………..120VAC
Power Supply…………………………….…………………………….208/460 VAC Supply (for Compressors)
Suggested Installation Tools and Materials
  3 Conductor #14 AWG High Voltage Cable  Wire Stripper and Wire Ties
 6’ Step Ladder  Water Proof Wire Nuts
STOP! PRECAUTION TO TAKE TO AVOID EQUIPMENT
MALFUNCTION OR ERROR!

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
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Installation Procedures:
  Upon receiving your MCWW Alternator Enclosure, open the box and verify that you have all the
required components as well as there are no damages to the equipment. Verify also that you have
all your installation material.
 Mount the Control Panel in the mechanical room or on any wall in a CLEAN, DRY AREA.
 Secure the panel to the wall using the 1/4” mounting hole in the four mounting brackets.
 Pull and connect field installed wiring from the L1 and L2 legs of power from each compressor
to alternator enclosure as shown in drawing below.
 Pull and connect field installed wiring from both compressors to alternator unit within enclosure
as shown in drawing below.
 Pull and connect field installed wiring in-between both compressors as shown in drawing below.
 Set pressure switch ON/OFF on Load 2 (Compressor 2) to 10 PSI lower than Load 1 (Compressor
1). For example: Compressor 1 is set to 140/110PSI for ON/OFF, Compressor 2 should be set
to 130/100PSI.
Start-Up Procedures:
 Turn ON power to compressors and alternator enclosure. Verify alternator has power and that
Load 1 (Compressor 1) is on. Compressor 1 must be wired to Load 1.
 Once Load 1 (Compressor 1) is running and hits its high limit (in this case 140PSI) it will turn
OFF. The next time pressure drops, it will turn ON the idle compressor (Load 2, Compressor 2).
 Load 2 (Compressor 2) will run until the high limit of the lead pressure switch is reached again.
If the pressure drops below the lag pressure switch low limit (in this case 100PSI), both Load 1
& Load 2 (Compressors 1 & 2) will turn on to bring pressure back into range. This process will
continue to go back and forth reaching the lead pressure switch’s high limit.
 Note: Both compressors will never be on at the SAME TIME unless Load 2 (Compressor
2) pressure switch has hit its LOW limit, in which case both Loads (Compressors) will turn
on to compensate and try to bring pressure back up into range.

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
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WARNING! DISCONNECT BOTH AIR COMPRESSORS
BEFORE SERVICING
WARNING! ONE OR MORE LIVE CIRCUITS!
WARNING! DISCONNECT ALL POWER TO THIS
EQUIPMENT BEFORE SERVICING. ELECTRICAL SHOCK WILL
RESULT IN DEATH OR SERIOUS INJURY!

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
8MANULALTINS001 10-15-2020 www.motorcitywashworks.com 4
Control Box 208VAC

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
8MANULALTINS001 10-15-2020 www.motorcitywashworks.com 5
Control Box 230VAC

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
8MANULALTINS001 10-15-2020 www.motorcitywashworks.com 6
Control Box 460VAC

© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A. Phone: [phone] ▪ Fax: [phone]
8MANULALTINS001 10-15-2020 www.motorcitywashworks.com 7
Warranty and Return Procedure:
Motor City Wash Works warrants this product to be free of defect in material and/or workmanship for a
period of one year from the date of purchase. During the warranty period MCWW will at its discretion, at
no charge to the customer, repair or replace this product if found defective, with a new or refurbished unit,
but not to include costs of removal or installation. Any product returned to MCWW for warranty has to have
a Return Material Authorization Number. All shipping costs to MCWW are assumed by the customer.
This is only a summary of the MCWW Limited Warranty. Please, communicate with MCWW for our
complete warranty.
Prior to returning any product to MCWW, the customer must call in for a Return Material Authorization
Number and a copy of our Return Material Authorization Form must be completed. The RMA number
must be written clearly on the outside of the shipping package and a copy of the form must be included in
the package.