Mounting Orientation; Dc Side Connections - Samlex Power PST-150-12 Manuel Du Propriétaire

SECTION 8 |

8.3 MOUNTING ORIENTATION

The unit has air intake and exhaust openings for the cooling fan. It has to be mounted
in such a manner so that small objects should not be able to fall easily into the unit from
these openings and cause electrical / mechanical damage. Also, the mounting orienta-
tion should be such that if the internal components overheat and melt / dislodge due to
a catastrophic failure, the melted / hot dislodged portions should not be able to fall out
of the unit on to a combustible material and cause a fire hazard. The size of openings
has been limited as per the safety requirements to prevent the above possibilities when
the unit is mounted in the recommended orientations. In order to meet the regulatory
safety requirements, the mounting has to satisfy the following requirements:
- Mount on a non-combustible material.
- The mounting surface should be able to support the weight of the unit
- Mount horizontally on a horizontal surface - above a horizontal surface
(e.g. table top or a shelf).
- Mount horizontally on a vertical surface – The unit can be mounted on a vertical sur-
face (like a wall) with the fan axis horizontal (fan opening facing left or right).
WARNING!
Mounting the unit vertically on a vertical surface is NOT recommended (fan
opening facing up or down). As explained above, this is to prevent falling of
objects into the unit through the fan opening when the fan opening faces up.
If fan opening faces down, hot damaged component may fall out.

8.4 DC SIDE CONNECTIONS

8.4.1 Preventing DC Input Over Voltage
It is to be ensured that the DC input voltage of this unit does not exceed 16.5 VDC for
PST-150-12 or 33.0 VDC for PST-150-24 to prevent permanent damage to the unit. Please
observe the following precautions:
- Ensure that the maximum charging voltage of the external battery charger / alterna-
tor / solar charge controller does not exceed 16.5 VDC for PST-150-12 or 33.0 VDC for
PST-150-24
- Do not use unregulated solar panels to charge the battery connected to this unit.
Under open circuit conditions and in cold ambient temperatures, the output of the
solar panel may be > 22V for 12V nominal panel and > 44V for 24V nominal panel.
Always use a charge controller between the solar panel and the battery.
- When using Diversion Charge Control Mode in a charge controller, the solar / wind /
hydro source is directly connected to the battery bank. In this case, the controller will
divert excess current to an external load. As the battery charges, the diversion duty
cycle will increase. When the battery is fully charged, all the source energy will flow
into the diversion load if there are no other loads. The charge controller will discon-
nect the diversion load if the current rating of the controller is exceeded. Disconnec-
Installation
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