11. If a remote or automatic generator start system is used, disable the automatic starting circuit and/or
disconnect the generator from its starting battery while servicing to prevent accidental starting.
Underwriters Laboratory (U.L.) Compliance Requirements
The Power Module cabinet is listed (UL file#39FL under
“Rainproof Modular Enclosure for use as a
photovoltaic Power System Accessory,”
UL1741. The modules are shipped with a listing sticker approved
for use by UL. The sticker is valid if and only if the following compliance requirements are met in the final
installation.
1. Stability Requirements The optional mounting feet (PMO-FEET) must be included for each
assembled cabinet. The bottom module of each cabinet must be secured with at least six 1/2" anchor
bolts through the mounting feet to a concrete pad or platform of sufficient mass and footprint to keep the
completed cabinet and the intended contents from being pushed over. It is the user’s responsibility to:
ü
insure that the concrete pad or platform meet these requirements;
ü
maintain the anchor bolts over time;
ü
replace components as needed.
Additional mounting of the upper module(s) to a wall may be needed to meet local earthquake code
requirements.
2. Grounding Continuity Requirements Individual modules, doors, and lids must be assembled as per
the details outlined in this manual with the fastening hardware supplied by Trace Engineering. The PM
modules and lid must have a star washer on the outside between the head of the carriage bolt and the
module, and on the inside between the module and the nut, to insure grounding continuity between
modules. The door latch assemblies are factory installed with earth nuts and the powder-coat is removed
on the module where the door latch contacts to insure grounding continuity of the doors. As an added
insurance, the neoprene gasket is attached to the module between the door to insure that the latch
remains in contact with the bare metal spot. It is the user’s responsibility to insure that the gasket remains
maintained over time and replace as needed.
3. Baffle Requirements The water baffle and screening is required on each door on a module containing
electronic components for all installations. The kit (PMO-ODTEK) is factory installed as per the
instructions outlined in this manual. After assembly, use the silicone rubber sealant included with the kit to
treat all seams to insure lone-term weather-proofing perfoamance. It is the user’s responsibility to
maintain the weatherproofing accessories over time, and to replace components as needed.
4. The installer/user is responsible to insure that the power module cabinets are properly installed and that
all electrical connections are made to meet local National Electric Code (NEC) and inspector’s
requirements.
Copyright
Trace Engineering Co., Inc.
Telephone (360) 435-8826
Part Number 3471
5916 195th Street, NE
Fax (360) 435-2229
Released: Thursday, April 29, 1999
Arlington, WA 98223 USA
Underwriters Laboratory (U.L.) Compliance Requirements
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