Electrical Schematics
Control and power schematics for 30XV units with Green-
speed
®
Intelligence are shown in Fig. 90-102.
Quick Test (Service Test)
Main power and control circuit power must be on for Quick
Test. The Carrier Controller Quick Test function is used to ver-
ify proper operation of various devices within the chiller, such
as condenser fans, automated isolation valves, EXVs, and re-
mote alarm relays. This is helpful during the start-up procedure
to determine if devices are installed correctly.
To use the Quick Test mode, the unit must be in the local OFF
mode. To reach the Quick Test menu, follow the path: Main
Menu
Quick Test Table. The unit must be in Local Off
mode to adjust parameters in the table. The Quick Test function
is not available remotely, and can only be used from the Carrier
Controller display. See the Start-Up Checklist at the end of this
document, page CL-6, for a list of the parameters in the Quick
Test Table.
ALM
— Alarm
AUX
— Auxiliary
ALT
— Alert
CB
— Circuit Breaker
CLR
— Evaporator
COMPR — Compressor
CSR
— Current Sensing Relay
CWFS
— Chilled Water Flow Switch
DGT
— Discharge Gas Temperature
DPT
— Discharge Pressure and Temperature
ECTA
— Economizer A Temp
ECTB
— Economizer B Temp
EMM
— Energy Management Module
EPT
— Economizer Pressure Transducer
EXV
— Electronic Expansion Valve
FIOP
— Factory-Installed Option
FM
— Fan Motor
FU
— Fuse
Example: Test the function of the Ckt A condenser fans
•
Power must be applied to the unit. The Enable-Off-Remote
Contact switch must be in the OFF position.
•
Touch the Start/Stop button and ensure the unit is in Local
Off.
•
Navigate to the Quick Test table and set line 2 Quick Test
Enable to Enable.
•
Set line 11, VariFan Speed A, to 100%, then select SET
from the pop-up menu to accept the entry. Confirm all fans
are running.
Test component function by turning the item values from OFF to
ON or adjusting the actuated percentage. These discrete outputs
are then turned off if there is no keypad activity for 10 minutes.
See Fig. 103 and 104 for component arrangement diagrams.
NOTE: There may be up to a one-minute delay before the se-
lected item is energized.
LEGEND FOR FIG. 90-102
GFI-CO —
Ground Fault Interrupter - Convenience Outlet
GND
—
Ground
HPS
—
High-Pressure Switch
HTR
—
Heater
LIQ
—
Liquid
NEC
—
National Electrical Code
OPT
—
Oil Pressure Transducer
PMP
—
Pump
SGT
—
Suction Gas Temperature
SIOB
—
Standard Input/Output Board
SPT
—
Space Temperature
TB
—
Terminal Block
TRAN
—
Transformer
VFD
—
Variable Frequency Drive
UPC
—
Universal Protocol Converter
XL
—
Across the Line
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