Market Forge Industries STM-E, Owner'S Manual, Page: 9 / 36

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SECTION 1 INSTALLATION INSTRUCTIONS
THE ELECTRIC SUPPLY CONNECTIONS FOR STM-E AND STM-EL
Connect to proper electrical supply as indicated on nameplate on top of unit. Connection is
located behind the terminal box cover at the lower left side of unit. Whether the supply
current is 208 or 240 volt, single phase or three phase, all control circuits are 120 volts.
In
order to accomplish this, a current-carrying grounded neutral must be provided.
Thus, a three phase system must be 4-wires and a single phase system must be 3-wires. If a current-
carrying grounded neutral is not available from the power source, a separate 120 volt circuit must be
run. Most electrical codes require, and we recommend, that a separate disconnect switch be located
within sight of the sterilizer. When a separate 120 volt control circuit must be run, this must also be
part of the disconnect box assembly.
THE ELECTRIC SUPPLY CONNECTIONS FOR STM-EX AND STM-ELX EXPORT
Connect to proper electrical supply as indicated on nameplate on top of unit. Connection is located
behind the terminal box cover at the lower left side of the unit. All control circuits are 220 volts.
In order to accomplish this, a current-carrying grounded neutral must be provided.
Thus, a three phase system must be 4-wires. Most electrical codes require, and we recommend, that
a separate switch be located within sight of the sterilizer.