General Safety Instructions
Only trained and qualified personnel should install this kit. most states, countries etc. may require
the installer to be licensed. Please check with your local government agency.

DANGER - Electrical Shock Hazard
Only trained and qualified personnel should install this kit. most states, countries etc. may require the
installer to be licensed. Please check with your local government agency.

CAUTION - Equipment Damage
Failure to properly install this kit can and will cause permanent damage to the compressor and
related components.

1) Disconnect all sources of power to the unit. Note that there may be more than one.
2) Locate and remove the electrical service access door or panel.
3) Mount the 5-2-1 Kit potential relay and start capacitor in a suitable location within the electrical
box. The potential relay should be mounted with the mounting tab up. The capacitor should be
mounted with the terminals up. Take care to mount the components so that all non-insulated live
terminals are at least 1⁄2” away from all metal or electrical conducting parts or components. Mount
in a location that will prevent water from coming in contact with the non-insulated live contacts.

NOTE– The 5-2-1Compressor Saver® has been pre-wired for your convenience. There are only 3
color coded wires which need to be connected. The Black wire will be connected to the Common
side of the compressor. The Striped wire will be connected to the Start winding of the compressor
and the Red wire will be connected to the Run winding of the compressor. Remember – 5, 2, 1, =
Common, Start, Run. Proceed as follows:

5) Common- Connect the loose end of the Black wire to T1 of the contactor. Check to see that the
Common “C” terminal of the compressor also connects to T1. In most cases you will find a Black
wire coming from the Common “C” terminal of the compressor.
2) Start - Connect the loose end of the Striped wire to the Start winding side of the run capacitor.
The Start winding side of the run capacitor is always marked “HERM“. The Start winding side of the
run capacitor can also be verified by following the yellow or orange or blue wire (in most cases) from
the compressor “S” terminal to the Start winding side of the run capacitor.
1) Run- Connect the loose end of the Red wire to the Run winding side of the compressor. The Run
winding is connected to T2 of the contactor as well as the common side of the run capacitor which is
usually marked with a “C” or “=”. The Run winding can be identified in most cases by a Red wire
coming from the R terminal on the compressor. The Red wire from the 5-2-1start kit is normally
connected at the “C” or “=” terminal on the run capacitor, but can also be connected to T2 of the
contactor. See the illustration below.