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11
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6
Electrical Work
●The electrical work must be completed according to the local regulations. Improper writing
and connections could lead to earth leakages or fires.
●Always earth the device before turning the power on. Do not connect the earthing wire to
gas pipes, lightning rods, or telephone earthing wires.
●Install a dedicated earth leakages circuit breaker and overload protection device on the power
supply side. Failure to observe this could result in earth leakages, electric shocks or fires.
●Avoid multiple connections (connecting multiple electric devices) and carry out installation
using dedicated wiring. Failure to observe this could result in earth leakages, electric shocks or
fires.
●After work, return the terminal box cover to original position. Failure to observe this could
result in electric shocks or fires.
●Clean off any dust from the power plug, wiring connectors, connections and terminals.
An electrical discharge on dust could cause heating or fires.
●Confirm whether a wiring joint and a connection part become loose or disconnected.
If it loose or disconnected on point, failure to observe this could result in electric shocks or fires.
●Refer to the connection diagram inside the terminal box or this instruction manual for power
cable connection. Incorrect wiring could result in electric shocks or fires.
●Do not install a power cable and control cable in the same pipe or duct. Failure to observe
this could result in trouble at this blower or other equipment.
6.
1 For standard voltage products, see the drawing on the below and connect the motor terminals to
the power supply terminals correctly.
IE3 and GB3 specification UL&NEMA specification
(Note1) UL&NEMA specifications have 9 terminals (T1, T2,T3, T4, T5, T6, T7, T8, T9).
(Note2) The nominal size of crimp terminals with UL&NEMA specifications is 1.25-4.
!
WARNING
!
CAUTION
Summary of Contents for Showa Denki U2G-70T
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