Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 1. Press MENU. 2. Select PROGRAM. Press RIGHT. 3. Select LOOP 1. Press RIGHT. 4. Select THROT RNG. Press RIGHT. 5. Adjust the range using the UP or DOWN arrows. To confirm the new selection press RIGHT. The fans are programmed to wait for a short delay after being called to turn on or off before switching. This helps limit large inrush currents. By default the delay is set to 10 seconds. To adjust the fan onoff delay 1. Press and hold MENU until the SETUP menu appears. 2. Select OUTPUTS. Press RIGHT. 3. Select LOOP1. Press RIGHT. 4. Select ON DELAY or OFF DELAY. 5. Adjust the delay in 10 second intervals using UP or DOWN. To confirm the new selection press RIGHT. Maintenance WARNING Work should not be performed on the cooler without first isolating the circuit involved or disconnecting power. Automatic starting of the fans could lead to danger. Under no circumstances should the fans be run with the guards removed. Follow all relevant lockout tagout procedures. On completion of any work the unit should be returned to its normal operating condition. The VIRGA III is designed to operate with a minimum of user attention. However regular preventive maintenance must be performed to ensure safe and reliable service. The minimum recommended maintenance procedures are outlined below. The temperature sensor should occasionally be checked for accuracy. To do this remove the sensor probe from the thermowell on the outlet water pipe and submerge as much of the tip as possible in a glass containing as much ice as cold water. The temperature display on the controller should read 32F 2F. Electrical connections should be checked periodically to ensure that no loose connections are present. Mechanical parts such as bolts and pipe fittings should be checked for secure attachments. English 4