MODEL: PSN3

PSN3 SPECIFICATIONS

ES-4858 Rev.18 Page 4/7

http://www.m-system.co.jp/

When the high temperature protection is activated in a high

temperature ambient, adjust the timer to a longer interval.

• Motor Preheat Function

When this unit detects a temperature lower than 0°C or

32°F (approximate) on the surface of its motor, this unit

supplies current to the motor in order to warm up and

maintain its surface temperature at 5°C or 41°F

(approximate).

Maintain the power supply ON when this unit is used in the

ambient temperature below 0°C or 32°F.

• Sealing Spring

The PSN is incorporated with springs to maintain sealing

pressure when the valve is fully closed. Choose an

appropriate sealing pressure.

These springs provide the same pressure at both fully

closed and fully open positions.

Do not apply a greater pressure to the spring than specified.