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Section 3 control panel installation, 1 electrical specifications, 2 environmental specifications – SilentKnight SK-5208 Conventional FACP 10-30 Zone User Manual

Page 11: 3 wiring specifications, Electrical specifications -1, Environmental specifications -1, Wiring specifications -1

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3-1

Section 3
Control Panel Installation

3.1

Electrical Specifications

3.2

Environmental Specifications

It is important to protect the SK-5208 control panel from water. To prevent water damage, the following
conditions should be AVOIDED when mounting the units:

Do not mount directly on exterior walls, especially masonry walls (condensation).

Do not mount directly on exterior walls below grade (condensation).

Protect from plumbing leaks.

Protect from splash caused by sprinkler system inspection ports.

Do not mount in areas with humidity-generating equipment (such as dryers, production machinery).

When selecting a location to mount the SK-5208 control panel, the unit should be mounted where it will NOT be
exposed to temperatures outside the range of 0°C-49°C (32°F-120°F) or humidity equal to or greater than 93% at
30°C (89°F) noncondensing.

See also the mounting recommendations in Section 3.5 for additional environmental specifications.

3.3

Wiring Specifications

To avoid induced noise (transfer of electrical energy from one wire to another), keep input wiring isolated from
high current output and power wiring. Induced noise can interfere with telephone communication or even cause

Table 3-1: Electrical Specifications

Primary AC

120 Vrms at 60 Hz, 3A

Total DC Load

6A

Accessory Power

27.4 VDC, 1A

Smoke Power

27.4 VDC, 1A

Battery Charging Voltage

27.4

Battery Charging Current

.75 A max.

Class B (Style B) Circuit Current

95 mA max.

Telephone Minimum Input Sensitivity

35 dB

Good Phone Line Voltage

3 V

Maximum Low Battery Detect

20.4

Minimum Low AC Detect

98

Notification Power

3A max. per output (6A total)