24Heater Unit WV-SW3H (option)• Installing this heater unit enables the camera to operate in a low-temperature environmentbelow –30 °C {22 °F}. A small fan inside the unit will minimize condensation on the surface ofthe enclosure caused by changes in ambient temperature unless temperatures change too rap-idly. The fan will stop when there is no possibility of condensation.• The heater unit is automatically turned on or off according to the temperature inside the camerathat is monitored.Important:• 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 this product is installed and operated in low temperatures below –10 °C {14 °F}, normalimages may not be obtained immediately after startup. In such a case, wait until the camera iswarmed up (approx. 2 hours or more) and turn on the power again.How to install the heater unitq Detach the camera’s enclosure (☞ page 34) and mount it in the specified position with thescrew (accessory).w Connect the harness cable to the heater unit connector of the camera.Important:• After mounting the heater unit, arrange the harness cable as shown in the illustration in step eso as not to be tangled round the enclosure, assist wire or equipment inside the camera.How to install the heater unit