Carrier 30XA080-500 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 83

Example -- Test the condenser tim AI (see Table 43).
Power must be applied to the unit. Enable/Off/Remote
Contact switch must be in the OFF position.
Test the condenser fans, cooler pump(s) and alarm relay by
changing the item values fiom OFF to ON. These discrete
outputs me then turned off if there is no keypad activity for
10 minutes. Test the compressor and minimum load valve sole-
noid (if installed) outputs in a similar mannel: Tile minimum
load valve solenoids will be turned off if there is no keypad
activity for 10 minutes. Compressors will stay on until the
operator turns them off. The Service Test mode will remain
enabled for as long as them is one or more compressors
running. All safeties am monitored during this test and will
turn a compressor, cimuit or the machine off if required. Any
other mode or sub-mode can be accessed, viewed, or changed
during the Manual Control mode only. Tile STAT item (Run
Status --)VIEW) will display "0" as long as the Service mode is
enabled. Tile TEST sub-mode value must be changed back to
OFF befom the chiller can be switched to Enable or Remote
contact for normal operation.
NOTE: Them may be up to a one-minute delay before the
selected item is energized.
Table 43 -- Testing Circuit A Oil Solenoid
MODE SUB-MODE KEYPAD ITEM DISPLAY VALUE
DESCRIPTION COMMENT
(Red LED) ENTRY EXPANSION (Units)
SERVICE TEST [] Service Test Mode
TEST [] Manual Sequence
QUIC [] Q.REQ
PASS WORD Password may be required
] 0111
[] Each [] will lock in the next
] digit. If 0111 is not the password,
use the arrow keys to change the
[] _assword digit and press []
] when correct.
] Q.REQ Returns to the original field
] OFF
] OFF OFF will flash
The Enable/Off/Remote Contact
] ON switch must be in the OFF
_osition.
Q.REQ
] EXV.A
] Press 15 times.
] OLG.A Oil Solenoid cir.A
] OFF
] OFF OFF will flash
[] oN
] ON OLS.A will turn on.
] ON 1 will flash
] OFF
] OFF OLS.A will turn off.
LEGEND FOR FIG. 42-44
ALM -- Isolation
CB -- Circuit Breaker
CPM -- Compressor Protection Module
CWFS -- Chilled Water Flow Switch
EMM -- Energy Management Module
EXV -- Electronic Expansion Valve
FlOP -- Factory-Installed Option
HTR -- Heater
ISO --
MBB --
MLV --
MM --
PMP --
SGT --
TB --
Isolation
Main Base Board
Minimum Load Value
Low Ambient Temperature Head Pressure Control
Pump
Saturated Gas Temperature
Terminal Block
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