Installation
RT-SVX35H-EN 43
Main Unit Power Wiring
1. Figure 29, p. 46 list the field connection wire ranges for
both the main power terminal block 1TB1 and the
optional main power disconnect switch 1S14. Table 11
list the component electrical data for Casing 2-9 units.
The electrical service must be protected from over
current and short circuit conditions in accordance with
NEC requirements. Protection devices mus
t be sized
a
ccording to the electrical data on the nameplate. Refer
to p. 47, Electrical Service Sizing Equations, for
determining;
a. The appropriate electrical service wire size based
on "Minimum Circuit Ampacity" (MCA),
b. The "Maximum Over Current Protection" (MOP)
device.
c. The "Recommended Dual Element fuse size" (RDE)
2. If the unit is not equipped with an optional factory
installed non-fused disconnect switch, a field supplied
disconnect switch must be installed at or near the unit
in accordance with the National Electrical Code (NEC
latest edition). Refer to p. 47, DSS calculation, for
determining the correct size.
3. Location for the electrical service entrance is shown in
Figure 4, p. 19 - Figure 8, p. 23. Complete the unit's
power wiring connections onto either the main
terminal block 1TB1, o
r the factory mounted non-fused
d
isconnect switch 1S14, inside the unit control
panel. Refer to the customer connection diagram that
shipped with the unit for specific termination points.
4. Provide proper grounding for the unit in accordance
with local and national codes.
WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or se
rious injury.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
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