Installation Instructions
UM19.5A User Manual, 99159, March 2017
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 into and out of the
unit�
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-UM19.5 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-UM19.5 is 90%
non-condensing.
!
