Frick QUANTUM Maintenance Manual page 11

SYMPTOM
LIQUID INJECTION SOLENOID DOES NOT
ENERGIZE* (Liquid Injection Refrigerant Cutout -
LICO)(Continued)
HI Vi LIQUID INJECTION PORT SOLENOID
DOES NOT ENERGIZE*
ECONOMIZER*
ALARM CIRCUIT DOES NOT ENERGIZE
CONTROL PANEL DOES NOT RESPOND TO
REMOTE CONTROL SIGNALS
FRICK QUANTUM CONTROL PANEL
MAINTENANCE
PROBABLE CAUSES and CORRECTIONS
Output 9 controls the Liquid Injection Solenoid. If the LED (D9) for
Output 9 (MOD 9) is on, check for the proper panel voltage between
position 4 and 1 on the P3 DIO connector on Digital I/O board #1. If
the proper voltage is not found, check the fuse (F9) and if the fuse is
OK, check the output module (MOD 9). If the voltage was OK, check
for the proper voltage between position 1 on the P3 DIO connector
and position 13 on the terminal strip. If voltage is OK, check for the
proper voltage between position 13 and 2 on the terminal strip. If the
voltage is OK, check the solenoid.
Output 10 controls the Hi Vi Liquid Injection Port solenoid. If the LED
(D10) for Output 10 (MOD 10) is on, check for the proper panel volt-
age between position 4 and 2 on the P3 DIO connector on Digital I/O
board #1. If the proper voltage is not found, check the fuse (F10) and
if the fuse is OK, check the output module (MOD 10). If the voltage
was OK check for the proper voltage between position 2 on the P3
DIO connector and position 12 on the terminal strip. If voltage is OK,
check for the proper voltage between position 12 and 2 on the termi-
nal strip. If the voltage is OK, check the solenoid. NOTE: For an RXB
and a GST compressor model, this output should only be on when
the Vi is at 5.0.
Output 11 (MOD 11) controls the Economizer Solenoid Valve. If the
LED (D11) for Output 11 (MOD 11) is on, check for the proper panel
voltage between position 4 and 5 on the P3 DIO connector on Digital
I/O board #1. If the proper voltage is not found, check the fuse (F11)
and if the fuse is OK, check the output module (MOD 11). If the voltage
was OK, check for the proper voltage between position 5 on the P3
DIO connector and position 11 on the terminal strip. If voltage is OK,
check for the proper voltage between position 11 and 2 on the termi-
nal strip. If the voltage is OK, check the solenoid.
NOTE: The economizer output should only be on when the slide
valve is at or above the 90% position.
Output 22 (MOD 22) controls the Alarm Circuit. The Alarm should turn
on only when there is an alarm or shutdown. If the Alarm does not
occur when these conditions are found and the LED (D22) for Output
22 (MOD 22) is on, check for the proper panel voltage between posi-
tion 4 and 2 on the P6 DIO connector on Digital I/O board #1. If the
proper voltage is not found, check the fuse (F22) and if the fuse is OK,
check the output module (MOD 22). If the voltage was OK, check for
the proper voltage between position 2 on the P6 DIO connector and
position 21 on the terminal strip.
Digital I/O Board 2, Inputs 3 through 5 can be used to operate the
compressor from a remote location. NOTE: Check the Operating dis-
play to verify that the compressor and the Slide Valve are in REMOTE.
If the Input 3 (MOD 3) does not turn on, check if the LED (D3) is lit
when it should be. If it isn't, check the fuse (F3) and if the fuse is OK,
check the input module (MOD 3).
If the Input 4 (MOD 4) does not turn on, check if the LED (D4) is lit
when it should be. If it isn't, check the fuse (F4) and if the fuse is OK,
check the input module (MOD 4).
If the Input 5 (MOD 5) does not turn on, check if the LED (D5) is lit
when it should be. If it isn't, check the fuse (F5) and if the fuse is OK,
check the input module (MOD 5).
S90-010 M
Page 11