York YCWS0313SC, Инструкция по установке, эксплуатации и обслуживанию, Страница: 52 / 104

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52
FMP DIP SWITCH SETTINGS
Auto restart will not occur because a manual reset is
required. A fault lock-out will automatically occur af-
ter the microprocessor attempts 2 more starts with the
MP contacts open.
Manual reset is accomplished by firstly shutting down
the other system (if running) and removing the 115VAC
control power (using the common input section con-
trol circuit switch disconnect) from the control panel,
in the case of over temperature after the motor sensors
have sufficient time to cool.
Mechanical High Pressure Cutout:
The cutout protects against excessive refrigerant dis-
charge pressure and is set to 28 bar. Auto-restart will
be permitted after shutdown on discharge pressure,
when the pressure drops below 23 bar and the cutout
contacts close.
A fault lock-out will result if safety thresholds are ex-
ceeded three times in a 90 minute period.
Low Evaporator Temperature Cutout:
This cutout protects the evaporator from freeze-up with
R407C. The cutout uses the cooler inlet refrigerant tem-
perature sensors (BCIRT) to monitor the evaporator
inlet refrigerant temperature on each system. These
sensors are only installed on R407C units.
If the refrigerant temperature falls below -6°C in the
Water Cooling mode, the system will be shutdown.
If the refrigerant temperature falls 11°C below the leav-
ing chilled liquid temperature in the Glycol Cooling
mode, the system will shutdown.
In addition, if the cooler inlet refrigerant temperature sen-
sor reads out of range low, the system will also shutdown.
3.7 PRINTOUT ON FAULT SHUTDOWN
If an optional printer is installed, the contents of His-
tory Buffer 1 will be sent to the printer any time a fault
shutdown occurs.
This will allow record keeping of individual faults, even
if they do not cause a lock-out of the system. This in-
formation may be useful to identify developing prob-
lems and troubleshooting.
The ‘NO RUN PERMISSIVE’ fault messages will not
be stored in the History Buffer and will not cause an
automatic printout.
Due to extreme operating conditions or
systems where control deficiencies are
present, occasional faults may occur
with the corresponding automatic print-
out. This is not a cause for concern.
S Y S 1 L O W E V A P T E M P
S Y S 2 L O W E V A P T E M P
Micropanel
TABLE 3 – MP DIP SWITCH SETTINGS
YCWS
SYSTEM
107% FLA
AMP SET
SYS X SYS X MP DIP SWITCH SETTINGS ON
MOTOR INPUT -FMP LEFT = 1 RIGHT = 0
CURRENT VOLTAGE 1 6 3 1 8 4 2 1
= 100% = 125% 2 4 2 6
FLA FLA 8
0313 1 & 2 081 1.29 87 50 0 0 1 1 0 0 0 0
0373
1 081 1.29 87 50 0 0 1 1 0 0 1 0
2 103 1.64 110 64 0 1 0 0 0 0 0 0
0423 1 & 2 103 1.64 110 64 0 1 0 0 0 0 0 0
0503
1 103 1.64 110 61 0 0 1 1 1 1 0 1
2 130 2.07 139 81 0 0 1 1 1 1 0 1
0563 1 & 2 130 2.07 139 81 0 0 1 1 1 1 0 0
0613
1 130 2.07 139 81 0 0 1 1 1 1 0 1
2 155 2.47 166 96 0 1 1 0 0 0 0 0
0663 1 & 2 155 2.47 166 96 0 1 1 0 0 0 0 0