User guide

53688 3-1
Section 3
Before You Begin Installing
This section of the manual is intended to help you plan your tasks to facilitate a smooth
installation. Please read this section thoroughly, especially if you are installing a MS-25 panel
for the first time.
3.1 What’s in the Box?
The MS-25 ships with the following hardware:
• A cabinet with all hardware assembled
• Two keys for the front door
• Installation and Operation manual P/N 53688
• Ten 4.7K ohm end-of-line resistors
• A battery cable for batteries wired in series
3.2 Environmental Specifications
It is important to protect the MS-25 control panel from water. To prevent water damage, the
following conditions should be AVOIDED when installing the units:
• Intended for indoor use in dry locations only
• 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 MS-25 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 outside the range of 10%-93% at 30°C (86°F) noncondensing.