24
Fig. 20 — Factory Inhibitor Charge Isolation
Software Configuration
See the 19DV with PIC5 Controls Operation and Trouble-
shooting manual for instructions on using the PIC5 interface to
configure the 19DV unit. As the unit is configured, all configu-
ration settings should be written down. A log, such as the one
shown starting on page CL-1, provides a list for configuration
values.
Charge Unit with Refrigerant
.
CONDENSER SIDE
FACTORY CLOSED
BALL VALVE
EVAPORATOR SIDE
FACTORY CLOSED
BALL VALVE
WARNING
Do not operate the chiller before the control configurations
have been checked and a Calibration and Control Test has
been satisfactorily completed. Protection by safety controls
cannot be assumed until all control configurations have
been confirmed.
IMPORTANT: Turn on the chilled water and condenser
water pumps to prevent freezing.
CAUTION
Always operate the condenser and chilled water pumps
whenever charging, transferring, or removing refrigerant
from the chiller. Always confirm that water flow is estab-
lished. Failure to follow this procedure may result in equip-
ment damage.
CAUTION
The transfer, addition, or removal of refrigerant in
spring isolated chillers may place severe stress on exter-
nal piping if springs have not been blocked in both up
and down directions. Failure to block springs in both up
and down directions could result in severe personal
injury and equipment damage.
CAUTION
Always operate the condenser and chilled water pumps
during charging operations to prevent freeze-ups. Dam-
age could result to equipment if condenser and chilled
water pumps are not operated during pumpdown or
charging.
WARNING
Always charge refrigerant gas into unit until pressure
exceeds water freeze temperature using PUMPDOWN/
LOCKOUT (located in the Maintenance menu) and TER-
MINATE LOCKOUT mode on the PIC5. Cooler and con-
denser water pumps must be running to prevent tube
freezing.
For R-1233zd(E) water freeze point is exceeded at -15 in. Hg
(-51 kPa).
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