The 599388 from Grundfos is a Timer for UP-15 Circulator Pumps, 24 hours. The Timer is designed only for use with specified Grundfos Series UP circulators installed in indoor hot water service systems. Applicable Series UP models include all single speed UP 10-15, 1-phase, 115 volt, 60 hertz pumps with date codes of 0528 and higher. The Grundfos Timer control is designed to turn the circulator on and off at preset times, allowing the user to select operation of the circulator during high use periods of the day.

Technical Specifications:

• Supply Voltage: 115-120 VAC, 60 hertz;
• Contact Rating: 16 amps;
• Ambient Temperature: -4F to 175F;
• Shortest Switching Interval: 15 minute increment;
• Switch Modes:"Timer", "ON" Override, "OFF" Override;
• Protection: Clear plastic cover for dust and moisture protection of the clock face;