Installation
RT-SVX46G-EN
35
Main Unit Power
Standard Wiring
1. Location of the applicable electrical service entrance is
illustrated in the Dimensions and Weights chapter.
Complete the unit’s power wiring connections at
Compressor Contactor # 1 (CC1) inside the unit control
panel. Refer to the customer connection diagram that
is shipped with the unit for specific termination points
2. Provide proper grounding for the unit in accordance
with local and national codes.
Optional TBUE Wiring (Through-the-Base
Electrical Option)
1. Location of the applicable electrical service is
illustrated below. Refer to the customer connection
diagram that is shipped with the unit for specific
termination points. The termination points, depending
on the customer option selected would be a factory
mounted non-fused disconnect switch (UDC) or circuit
breaker (UCB). If neither a factory mounted non-fused
disconnect switch (UDC) or circuit breaker (UCB) was
factory mounted, field wiring connections should be
terminated in the control box at Compressor Contactor
# 1 (CC1).
2. Provide proper grounding for the unit in accordance
with local and national codes.
Note:
Black gasket is shipped from the factory and is
located in the literature ship-with bag in the control
box. Apply black gasket around conduit plate on all
4 sides after installation to prevent air leakage from
the building entering the electrical enclosures.
Note:
Seal between wiring and conduit with black gasket
or weather proof sealer to prevent air leakage from
the building entering the electrical enclosures. Also
seal around conduit and wiring at all roof and curb
penetrations.
Field-Installed Control Wiring
An overall layout of the various control options available
with the required number of conductors for each control
device is illustrated in
Note:
All field wiring must conform to NEC guidelines as
well as state and local codes.
Control Power Transformer
The 24 volt control power transformers are to be used only
with the accessories called out in this manual.
Transformers rated greater than 50 VA are equipped with
internal circuit breakers. If a circuit breaker trips, turn “Off”
all power to the unit before attempting to reset it.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
Figure 62. 3 to 8.5 ton ultra high efficiency units
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. 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.
Seal between
wiring and conduit
with weather proof
sealer to prevent
air leakage
Control Wiring
Conduit
Black Gasket
Field Powered
Convenience Outlet
Conduit
Power Wiring
Conduit
