Isolite E3-MAC Series, Installation & Operation Manual, Page: 6 / 40

3.3 Ventilation
Because the E3-MAC Series uses a maintenance-free sealed valve regulated lead acid
(VRLA) battery, no special ventilation is required. Spaces normally occupied by humans
with either natural or forced ventilation allowing at least 1 to 2 air exchanges per hour is
recommended. Choose a mounting location that is clean and dust free. Do not install in
areas where there is particulate or high pollution degree from heavy industrial
machinery, corrosive chemicals or welding or plasma cutting environments etc.
3.4 Clearance
Air ventilation is through the front surface so there are no clearance requirements for
the top, back or sides of the cabinet. However, the NEC code does require an
unobstructed 3 ft. of clearance in front of the cabinet (i.e. electrical panels).
3.5 Floor Preparation
The mounting floor should be smooth and level so that the cabinet is not skewed or
twisted which would prevent the systems front door from being easily removed. Final
system leveling should be accomplished by shimming the cabinets corners so that the
front door can easily be removed for service. Floor mounting holes are provided in the
cabinet
’s base and will accommodate up to a 3/8” mounting bolt . All 4 mounting holes
should be secured with bolts due to the weights of the cabinet(s) and associated
batteries. We recommend concrete wedge anchors such as the Hilti brand Wedge
Anchor series Kwik Bolt TZ or equivalent.
3.6 Cabinet Configurations
There are 4 cabinet sizes/configurations for the E3-MAC Series. Electrical Knock Outs
(EKO’s) are provided on three surfaces. Ensure all metal conduit is secured and
tightened creating a good connection to earth ground. Use an Ohm-Meter to check that
continuity between conduit and protective earth ground has been established.
Seismic bracing is available for the E3-MAC Series. Please see Isolite.com for details of
seismic dimensions and configurations.
Note – Cabinet sizes and construction may change due to optional features such as
mixed voltages which require Isolation Transformers and/or Auto-Transformers.
All systems are shipped with a Contractors Guide for each model. This should be
referred to in the installation process since there may be more details available.
WARNING – Drilling into cabinet may void warranty if metal filings causes unit failure.
6 | INSTALLATION / OPERATION MANUAL