PROPERTY OF SOLIDSTATE CONTROLS, INC. 7/1998
The Inverter and Rectifier/Charger
This equipment is designed to set on any floor which is adequate to handle the loading. No bolting
to the floor is required, although some units have provision for bolting should the customer wish to
do so.
Room Temperature
All SCI Ferroresonant UPS systems are designed to operate at full load in an ambient temperature
of 0-40°C (32-104°F); 0-95% relative humidity; to altitudes of 5,500 feet (over 5,500 feet, consult
the factory). All SCI Powerbase (PWM) UPS systems to altitudes of 4,920 feet. However, as with
all electronic equipment, operating over a prolonged period of time at elevated temperatures may
be detrimental to the extended life of the equipment. In all probability we would expect the normal
temperature range to be between 70-80°F.
Some installations may require that equipment be designed to operate at 50°C (122°F) for periods
of time when normal cooling or ventilation has failed. SCI can design equipment to meet this
parameter where it is determined to be necessary.
High temperatures do have a negative effect on virtually all electronic components. For maximum
service life, plan the equipment room so that normal operating temperatures are between 65-90°F.
Appendix A shows actual worst case heat dissipation for our standard equipment which will aid you
in determining ventilation and air conditioning needs.
Since products do change frequently, you may contact SCI to verify current heat dissipation data.
Cleanliness
The equipment room should be relatively free of dust and dirt and other airborne contaminates as
heavy layers of dust will reduce the cooling efficiency of the electronic components.
Humidity and Condensation
It is important that the room low temperature control be adjusted to maintain the room temperature
above the dew point in order to prevent condensation of moisture on the electrical equipment.
Unloading Facilities
Before the UPS equipment arrives at the installation site, a number of checks need to be made of
the facility. Specific equipment size will determine the importance of each of the following items.
First, check if the site has an adequate loading dock or an unloading area that is accessible to the
trucker. If unloading facilities are not adequate, one might consider unloading at some other
location which has proper facilities; perhaps a nearby business that is willing to cooperate, and
using a smaller truck to deliver equipment to the site, or using the services of a professional moving
company.
(12 paginas)
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