Navien BCM-40RW Installation & Operation Manual page 5

Wireless communication module
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CAUTION
• Use suitable tools and appropriate
force to install the device.
_
Using unsuitable tools or excessive
force during installation may
damage the device.
• Do not expose the device to direct
sunlight or high temperatures for an
extended period of time.
_
Prolonged exposure to sunlight or
extreme temperature can cause
permanent damage to the device's
internal components.
• Avoid water and wet areas.
_ This may damage the device's
internal components. Always keep
the device dry.
• Do not clean the device with water
or a damp cloth.
_
You may damage the device.
• Do not install the device in very hot
or very cold areas. The operating
temperature of the device is 0℃–40℃.
• Do not use loose or damaged cables.
_
This may result in a poor
connection or cause the device to
malfunction.
• This device has been approved for
use in the UK and EU only.
_ Using the device in any other
country will void the manufacturer's
warranty.
5

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