Pressure Switch Conversion Kit, TS4, TS5, TS51 1Ph Ingersoll-Rand Tendy Style

Pressure Switch Conversion Kit for Ingersoll Rand TS4 and TS5 Air Compressor – 38473278

38473278 is a pressure switch conversion kit that replaces pressure switch number 56288806 if you are running the Ingersoll Rand TS4 or TS5 piston compressor. This kit includes a replacement pressure switch, copper unloader tube, and pressure gauge.

IR changed pressure switch manufacturers in approximately 2009. The on/off switch and unloader valve are now on the opposite side of the older version switch. The old pressure switch part number was 56288806. This conversion kit provides all parts necessary to successfully convert your switch to the newer version. If instead you are running an Ingersoll Rand reciprocating compressor manufactured after 2010, you are able to purchase the 23474653 switch separately.

Please note 38473278 will only work with the single phase TS4 and TS5 air compressors.

The pressure switch turns the compressor on when it hits the lower pressure setpoint and turns the compressor off when the upper setpoint is reached. This is an OEM switch from Ingersoll Rand. Plenty of aftermarket switches are sold online, but many of them are not rated for the full load amp draw of the compressor and will cause pre-mature wear to the switch. The OEM switch from Ingersoll Rand is rated for a higher amp draw and is much heavier duty compared to others.

If you find your pressure switch is constantly leaking out of the unloader line, you should consider changing the check valve instead 85582229.