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Installation Electrical
Connecting Module Power and
Control Wires
Connections are typically made at the power distribution
panel of each chiller.
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/national
electrical codes.
Power Distribution Panel
The chiller must be fed by its own individual power. All
power wiring, up to the power panel, is the responsibility of
the installing contractor.
BMS Wiring
The physical medium will be determined by project
parameters and is the responsibility of the installing
contractor.
Hardwire Options
Table 3. Hardwire options
Function
Detail
Analog Inputs
4 -20 mA Signal to control chilled water output.
Remote Setpoint
Requires remote setpoint enable.
16
Table 3. Hardwire options (continued)
Function
Detail
4-20 mA signal to work with as chiller-based
Remote Offset
baseline setpoint. Requires remote offset enable.
External Load
0-10 v or 4-20 mA signal to limit max power of the
Shedding
chiller.
Chiller Pump
0-10 v or 4-20 mA signal use as a pass-through to
Speed Ref
control pump.
Digital Inputs
Hardwired Binary input to enable and disable
Cooling Enable
chiller. Requires chiller be in auto mode.
Remote Setpoint
Binary input required to use remote setpoint.
Enable
Remote Offset
Binary input required to use remote offset.
Enable
External Load
Binary input to engage external load limit internal
Shedding
chiller parameter.
Digital Outputs
Binary output to enable external chiller pumping
Chiller Pump
package.
Enable
Binary output indicating occurrence of
General Alarm
unacknowledged fault.
Binary output indicating that any compressor is
Chiller Running
running.
Compressor
Binary outputs (up to 4) indicating specific
Running
compressor running.
Binary output indicating that all compressors are
No Compressor
not available to operate.
Available Fault
Binary output indicating chiller is producing its
Chiller at
maximum cooling at the current conditions.
Maximum
Binary output top enable external cooling tower
Cooling Tower
(water-cooled only).
Enable
Binary output to enable external condenser
Condenser Pump
pumping package (water-cooled only)
Enable
ARTC-SVX013A-EN
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