Carrier AquaSnap 30MPA Series Controls, Start-Up, Operation, Service, And Troubleshooting page 106

C. Unit Start-Up (cont)
COMPONENT TEST
Use escape/arrow keys to illuminate configuration LED. Press enter to display 'DISP'. press enter again to display
'TEST' followed by 'OFF'. Press enter to stop display at 'OFF' and enter again so 'OFF' display flashes. 'PASS' and
'WORD' will flash if password needs to be entered. Press enter to display 'PASSWORD' field and use the enter key
for each of the four password digits. Use arrow keys if password is other than standard. At flashing 'OFF' display,
press the up arrow key to display 'ON' and press enter. All LED segments and mode LEDs will light up. Press
escape to stop the test. Press escape to return to the 'DISP' display. Press the escape key again and use the
arrow keys to illuminate the Service Test LED. Press enter to display 'TEST'. Press enter to stop display at 'OFF'
and enter again so 'OFF' flashes. Press the up arrow key and enter to enable the manual mode. Press escape and
display now says 'TEST' 'ON'. Turn switch (SW1) to the enable position.
Press the down arrow to display 'OUTS'. Press the enter key to display 'LL.SV'. Press the enter key to stop display
at 'OFF' and enter again so 'OFF' flashes. Press the up arrow key and enter to turn the output on. Press enter so
the 'ON' display flashes, press the down arrow key, and then enter to turn the output off. Outputs will also be
turned off or sent to 0% when another output is turned on. Check off the items in the service test table on the next
page that apply after being tested.
Use escape key to return to 'OUTS' display. press down arrow to display 'CMPA'. Press enter key to display
'CC.A1'. note that unloaders and hot gas bypass solenoids can be tested both with and without compressor(s)
running. Make sure all service valves are open and cooler/condenser pumps have been turned on before starting
compressors. Check off each item after successful test. The control will only start one compressor per minute.
When at the desired item, press the enter key twice to make the 'OFF' flash. Press the up arrow key and enter to
turn the output on. Check off the items in the service test table below that apply after being tested.
KEYPAD
SUB-MODE
ENTRY
ENTER
TEST
ENTER
OUTS
ENTER
CMPA
SERVICE TEST
ITEM DISPLAY
EXPANSION
OFF/ON SERVICE TEST MODE
OUTPUTS AND PUMPS
CLR.P OFF/ON COOLER PUMP RELAY
CND.P OFF/ON CONDENSER PUMP
UL.TM 0 TO 15 COMP A1 UNLOAD TIME
CC.H OFF/ON CRANKCASE HEATER
CW.VO OFF/ON CONDENSER VALVE OPEN
CW.VC OFF/ON CONDENSER VALVE CLOSE
LL.SV OFF/ON LIQUID LINE SOLENOID
RMT.A OFF/ON REMOTE ALARM RELAY
EXV.A XXX% EXV% OPEN
CIRCUIT A COMPRESSOR TEST
CC.A1 OFF/ON COMPRESSOR A1 RELAY
UL.TM 0 TO 15 COMP A1 UNLOAD TIME
CC.A2 OFF/ON COMPRESSOR A2 RELAY
CC.A3 OFF/ON COMPRESSOR A3 RELAY
MLV OFF/ON MINIMUM LOAD VALVE RELAY
ITEM
To Enable Service Test Mode,
move Enable/Off/Remote
Contact switch to OFF. Change
TEST to ON. Move switch to
ENABLE.
CL-6
Completed
COMMENT
(Yes/No)