Plug in the power cord to a properly grounded main circuit. The Ready Green LED will come on within 3 minutes, indicating the relay temperature (10°C) has been achieved. After approximately 3 minutes, the set point of +3.5°C. (38.3°F) is achieved. The sample gas flow may be started immediately after the Green LED comes on.
The ICOOL is virtually maintenance free. However, in the event of electrical problems, contact the Perma Pure LLC service department for troubleshooting assistance.