Panasonic WV-NW470S - Manual (Page 34)

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■ Optional Heater Unit WV-CW3HE
● Introduction
Installing this heater unit enables the camera to operate under in a low-temperature environment of –30 °C (–22 °F).
The heater turns on automatically when the temperature inside the camera drops below +10 °C (50 °F) and turns off
when it rises.
A small fan inside the unit will minimize condensation on the surface of the dome cover caused by changes in ambi-
ent temperature unless temperatures change too rapidly. The fan will stop when there is no possibility of condensa-
tion.
● Precautions
• This product should be installed and connected by qualified service personnel or system installers.
• Do not use the same 24 V AC power source supplying the power to the camera for the heater unit. Connect anoth-
er 24 V AC power source to the heater unit. If the same power source is used, turning the heater on and off may
disturb the camera images.
• When servicing, pay attention to high temperature on the surface of the unit. Disconnect the harness and wait until
it cools.
• When you install the camera in a low-temperature location and start operating it, it may take time (around 30 min-
utes) for the inside of the camera to warm up. Cut power once then supply power again.
● Installation
1. Open the dome cover. (See Disassembling the camera.)
2. Place the heater unit in the camera and fix it with the sup-
plied screw.
3. Insert the harness into the heater unit connector of the
camera.
4. Fold the desiccant pack in half, and attach it with adhe-
sive tape to point "A" shown in the figure.
Note: Attach the desiccant pack so that it does not block
ventilation holes or hang over the top of the wall.
5. Attach the dome cover while paying attention not to pinch
the harness cable.
6. Connect the heater power cable of the camera. (See
Connection.)
● Specifications
Required power: 24 V AC, 50 Hz
Power consumption: 12.1 W maximum
Dimensions: 29 mm (H) x 83 mm (W) x 89.5 mm (D)
[1-1/8" (H) x 3-1/4" (W) x 3-1/2" (D)]
Weights: 45 g (0.1 lbs)
● Accessories
Fixing screw (M3 x 12) .................................. 1 pc.
Desiccant pack ............................................. 1 pc.
APPENDIX
Adhesive tape
Fold
Supplied screw
Harness
Point "A" (wall)