Armstrong World Industries 6100 - Manual (Page 3)

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Warning: Do not operate the supplied humidifier in combustible or explosive surroundings.
Warning: Do not operate the supplied humidifier if there is any damage to the cabinet or any
components in humidifier are damaged.
Warning: The main switch should be a connection breaker which has over current and leakage
current protecting functions per code EN60947-3 or EN60947-2 if point gap required by EN60947-3
can be fulfilled.
4. Physical environment and operating conditions
• Ambient temperature + 4°C ~ + 38°C (40°F to 100°F)
• Humidity = 50 % at 40°C (104°F), = 90 % at 20°C (68°F)
• Altitude = 1000 m (above mean sea level) (3300 ft)
5. Transportation and storage conditions
Electrical equipment shall be designed to withstand, or suitable precautions shall be taken to
protect against, the effects of transportation and storage temperatures within a range of
-25°C to + 55°C (-15°F to 130°F) and for short periods not exceeding 24h, up to +70°C (160°F).
Suitable means shall be provided to prevent damage from humidity, vibration and shock.
6. Requirements
The supply disconnecting device (i.e. a switch-disconnect, a disconnect used in combination with
switching devices, or a circuit-breaker) shall fulfill all of the following requirements:
• Isolate the electrical equipment from the supply and have one OFF (isolated) and one ON
position only, clearly marked with “O” and “I” (symbols 60417-2-IEC-5008 and
60417-2-IEC-5007, see 10.2.2), with the actuating directions in accordance with IEC60447.
Circuit-breaker that, in addition, has a reset (tripped) position between “O” and “I” are also
deemed to satisfy this requirement.
• Have a visible gap or a position indicator which cannot indicate OFF (isolated) until all contacts
are actually open and there is an adequate isolating distance between all the contacts in
accordance with IEC 60947-3.
• Be provided with a means permitting it to be locked in the OFF (isolated) position
(e.g. by padlocks). When locked, remote as well as local closing shall be prevented.
• Disconnect all live conductors of its power supply circuit. However, for TN supply systems, the
neutral conductor may or may not be disconnected. It is noted that in some countries,
disconnection of the neutral conductor (when used) is compulsory.
• The handle of the supply-disconnecting switch shall be located between 0.6m and 1.7m
(2 ft. and 5-1/2 ft) above the servicing level.
• The disconnecting switch must have over current and overload protecting functions and
initialize them as low as possible under normal running.
• This disconnecting switch should have leakage current protecting function. The max leakage
current should be less than 30mA.