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Installation Precautions
1-1
Installation Precautions
The F250 is highly reliable and resistant to most environmental factors. The
following guidelines, however, must be followed to ensure reliability and opti-
mum use of the F250.
!Caution
Read the Precautions section before proceeding with installation or operation.
1-1-1
Controller Installation
Installation Site
Do not install the F250 in locations subject to the following conditions:
1,2,3...
1.
2.
3.
4.
5.
6.
7.
8.
Orientation of Controller
To improve heat dissipation, install the Controller in the following orientation
only. For proper air flow, provide at least 20 mm of clearance above the Con-
troller and at least 50 mm of clearance on both sides.
2
Ambient temperatures outside of the 0 to 50•C (32 to 122•F) range
Rapid temperature fluctuations (likely to cause condensation)
Relative humidities outside of the 35% to 85% range
Presence of corrosive or flammable gases
Presence of dust, salt, or iron particles
Direct vibration or shock
Direct sunlight
Water, oil, or chemical fumes or spray
• Horizontal Installation
CORRECT
Do not install the Controller upside down as shown in the following dia-
gram.
INCORRECT
Section 1-1
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