Precautions On Installation & Wiring.3 - Aiphone TD-H Series Installation & Operation Manual

★ PRECAUTIONS ON INSTALLATION & WIRING --
A CAUTION
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Do not connect any terminal on any unit to AC power lines to prevent fire or unit damage.
■A
Do not install more than one power supplies PS-12A (or PS-12C) for an entire TD-H system,
inciuding adaptors for door station and/or paging.
^ Do not attempt to instaii or connect wires on TD-H equipment while system's power supply is
plugged in.
★ TD-H masters and related equipment, except door station, are designed for indoor use only. Do not
install outdoors.
★ Do not connect any other power source than specified on terminals +, - . Doing so can damage the
TD-H equipment.
IMPORTANT
★ For system's installation, there is no need to disassemble the equipment. Do not open any TD-H
system components unless properly qualified.
★ Any other manufacturer's products installed with this system (power supply, external signalling device,
etc.) are not covered under Aiphone's warranty.
★ Do not mount TD-H equipment in the following places, as it may cause the system to malfunction:
• High or extreme cold temperature areas; under direct sunlight, near equipment that varies in
temperature, in front of air-conditioner, inside a refrigerated area, etc.
• Places subject to moisture or humidity extremes.
• Places subject to environmental conditions, such as dust, oil, chemicals, etc.
★ TD-H is an electrical device, which must not be subjected to water, or any other liquid.
★ Weather conditions, such as lightning storms, may cause damage to TD-H equipment. We
recommend that power surge protection be installed as follows: (However, this does not guarantee
that no damage will occur).
Before actually installing the TD-H system, the contents on pages 4 ~ 10 must be thoroughly read
and understood.
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