31Optional Heater Unit WV-CW5H (option)Installing the heater unit enables the camera to operate in a low-temperature environment below–30 °C. The heater turns on automatically when the temperature inside the camera drops below+10 °C and turns off when the temperature rises. A small fan inside the unit will minimize conden-sation on the surface of the enclosure caused by changes in ambient temperature unless tempera-tures change too rapidly.Important:• When using 12 V DC power supply, the optional heater unit is unavailable (WV-CW504).• Turning the heater on and off may disturb the camera images.• The power supply of the camera shall be turned off when mounting or dismounting the heater.When servicing, pay attention to high temperature on the surface of the heater unit. Disconnectthe harness and wait until the heater unit cools.• When the camera is installed and operated in low temperatures below –10 °C, normal imagesmay not be obtained immediately after startup. In such a case, wait approxilately 60 minutes ormore.How to install the heater unitq Remove the camera’s enclosure and mount it in the specified position with the supplied screw.w Connect the heater unit cable to the connector of the camera.Important:• After mounting the heater unit, arrange the harness cable as shown in the drawing so as not tobe tangled around the enclosure, safety wire, and equipment inside the camera.Heater output connectorScrew for heater unit*(supplied with heater unit)* Two screws including a spare screw areprovided as the standard accessories.