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Appendix B: Quick Reference Installation Requirements
Before you install the control unit, make sure that the installation area meets
the following requirements.
Environment
The environment for the control unit should be as follows:
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Temperature: 40 to 104 °F (4 to 40 °C).
Humidity: not to exceed 80%.
Airborne Contamination: no exposure to corrosive gases, dust, chemicals, or
similar substances.
Ventilation: 1-inch space above and to the sides.
Wiring
A branch circuit is part of your building wiring and it includes all the wires,
receptacles, and switches controlled by one circuit breaker. For best results,
your MERLIN Plus system control unit should be plugged into a dedicated ac
branch circuit, that is, one that is not used by other appliances, such as
heaters, refrigerators, coffee makers, or microwave ovens than can generate
large transient voltage when they switch on and off.
The control unit should be located within:
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A single cord length of the network interface, allowing for slack. You can
use up to 400 feet of DIW cable.
6 inches of the jack field that is centered beneath it.
5 feet of a grounded ac power source (not switch-controlled).
Also, a wiring run from the control unit to a voice terminal location cannot
exceed 1000 feet.
Caution Because lightning can induce high voltage on parallel runs of
wire that are near each other, do not route wiring from the control
unit to voice terminals along side CO line or ac building wires. If
voice terminal wiring must cross CO or ac wiring, cross them as near
to 90 degrees as possible.
Appendix B: Quick Reference Installation Requirements
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