Installation Instructions
UM17E User Manual, June 2010
7
Installation Instructions
Step 1: Prepare for Installation
IMPORTANT!
Perform the following steps BEFORE installation of the monitor�
1� Ensure that sufficient power is available and a readily accessible disconnect device is
incorporated in the building installation wiring�
2� Ensure that sufficient space is available to allow for proper air flow around the
enclosure�
3� Ensure that the air temperature around the unit (top and bottom)
will not exceed the
rated specifications of the unit.
f
The maximum rated temperature for the HIS-UM17 is 50°C (122°F)�
f
Remember that even though this product is designed to operate at
50°C, the life span of any electronic device is shortened when it is
consistently operated at high temperatures� Therefore, it is wise
to take steps to keep the temperature of the ambient air around the
unit as low as possible�
4� Ensure that the ambient humidity of the air around the unit
does not exceed the
specifications of the unit.
f
The maximum rated humidity for the HIS-UM17 is 90%
non-condensing�
!