1010041 Potter TTS-W Tank Temp Switch For Wood

Description

The Model TTS is a water tank temperature supervisory switch preset to give a low temperature signal at 40°F/4,5°C and a high temperature signal at 140°F/60°C (±5°F/3°C). It is UL Listed and FM Approved. A bi-metal thermostat is used for low temperature sensing and a bi-metal thermostat for high temperature sensing. A diode is used in this unit as a testing aid. When the polarity of DC current is reversed at the feed wires to a TTS, the diode in the circuit prevents the flow of current, proving the absence of a short circuit fault in the wiring or the device itself.

Testing

To test for a short or open in the TTS, connect an ohmmeter across the white and black TTS leads. With the meter connected positive to white and negative to black, the meter will read continuity (about 1 meg ohm). With the meter connected reverse polarity, the meter will read open. If using the diode tester setting on the meter, the meter will read .5 observing polarity and open with reverse polarity. To test the thermostat, the device must be exposed to temperatures of 40°F and 140°F. The appropriate thermostat will open creating an open circuit regardless of polarity.

Wiring

The TTS is normally closed device that opens when the probe is exposed to the operating temperature of the thermostats. The device is polarity sensitive. The positive leg of the initiating device circuit must be connected to the white wire lead. The negative leg of the initiating device circuit must be connected to the black wire lead. If the TTS is the last or only device on the initiating circuit, the EOLR must be wired in series with the TTS. It can be wired in series with either the black or white wire.

Specifications

• CUL, UL and CSFM Listed, FM Approved, and NYMEA Accepted
• 2 1/2" DIA x 17 1/2"L (63,5mm DIA x 445mm L)

1010041 Specifications PDF