
53
Table 7 — Capacity Overrides
OVERRIDE
CONDITION
(CONFIGURABL
E OVERRIDE
PARAMTER)
FIRST STAGE SET POINT
(CAPACITY INHIBIT)
SECOND STAGE SET POINT
(FORCED CAPACITY
DECREASE)
OVERRIDE
TERMINATION
VIEW/MODIFY
ON ICVC
SCREEN
OVERRIDE
DEFAULT VALUE
CONFIGURABLE
RANGE
VALUE
VALUE
HIGH
CONDENSER
PRESSURE
(COND PRESS
OVERRIDE)
SETUP1
CONDENSER
PRESSURE > 125
PSIG (862 kPa)
90 to 165 PSIG
(621 to 1138 kPa)
CONDENSER PRESSURE >
COND PRESS OV 2.4
PSIG (16.5 kPA)
CONDENSER PRES-
SURE < CON-
DENSER PRESS
OVERRIDE - 1 PSI
(6.9 kPa)
HIGH MOTOR
TEMPERATURE
(COMP MOTOR
TEMP
OVERRIDE)
SETUP1
COMP MOTOR
WINDING TEMP >
COMP MOTOR
TEMP OVERRIDE
threshold but <=
COMP MOTOR
TEMP OVERRIDE
thr10° F
150 to 200 F
(66 to 93 C)
COMP MOTOR WINDING TEMP
> COMP MOTOR TEMP OVER-
RIDE + 10 F (5.6 C)
COMPR MOTOR
WINDING TEMP <
COMP MOTOR TEMP
OVERRIDE - 2 F
(1.1 C)
LOW
EVAPORATOR
TEMPERATURE
(REFRIG
OVERRIDE
DELTA T)
SETUP1
CALC EVAP SAT
TEMP < EVAP
REFRIG TRIP-
POINT + 3 F(1.7 C)
2 to 5 F
(1.1 to 2.8 C)
CALC EVAP SAT TEMP < EVAP
SAT OVERRIDE TEMP - 1 F
(0.6 C) NOTE: EVAP SAT
OVERRIDE TEMP = EVAP
REFRIG TRI REFRIG
OVERRIDE DELTA T
CALC EVAP SAT
TEMP > EVAP SAT
OVERRIDE TEMP +
2 F (1.1 C)
HIGH
COMPRESSOR
LIFT (SURGE
PREVENTION)
(TSMIN, IGVMIN,
TSMAX,
IGVMAX,
SHAPEFAC)
OPTIONS
Tsmain: 45 ^F
IGVmin: 5%
Tsmax: 70 ^F
IGVmax: 100%
shapefac: -0.04
0 to 150 ^F
0 to 110%
0 to 150 ^F
0 to 110%
-1 to 0
None
Active
Tsat < Surge-
Line
Tsat + Dead-
band Setting
MANUAL GUIDE
VANE TARGET
(TARGET
GUIDE VANE
POS)
COMPRESS
Automatic
0 to 100%
None
Press RELEASE soft-
key after selecting
TARGET GUIDE
VANE POS
MANUAL
SPEED
CONTROL
(TARGET VFD
SPEED)
COMPRESS
Automatic
VFD MINIMUM SPEED
to 100%
Forced TARGET VFD SPEED
cannot override either a capacity
inhibit or a capacity decrease
command generated by the PIC
II
Press RELEASE soft-
key after selecting
TARGET VFD SPEED
MOTOR LOAD
(ACTIVE
DEMAND LIMIT)
MAINSTAT
AVERAGE LINE
CURRENT or
MOTOR PERCENT
KILOWATTS > 100%
40 to 100%
AVERAGE LINE CURRENT or
MOTOR PERCENT KILOWATTS
> ACTIVE DEMAND LIMIT + 5%
AVERAGE LINE CUR-
RENT or MOTOR
PERCENT KILO-
WATTS < ACTIVE
DEMAND LIMIT
LOW
DISCHARGE
SUPERHEAT
OVERRIDE
ACTUAL SUPER-
HEAT < SUPER-
HEAT REQUIRED
for conditions
None
ACTUAL SUPERHEAT <
SUPERHEAT REQUIRED - 0.5 F
(0.3 C)
ACTUAL SUPER-
HEAT > SUPERHEAT
RE 1 F
(0.56 C)
Summary of Contents for AquaEdge 19XR series
Page 69: ...69 Fig 33 19XR Leak Test Procedures a19 1625 ...
Page 154: ...154 Fig 64 Benshaw Inc Wye Delta Unit Mounted Starter Wiring Schematic Low Voltage a19 1873 ...
Page 161: ...161 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v ...
Page 162: ...162 Fig 69 Typical Low Voltage Variable Frequency Drive VFD Wiring Schematic 575 v cont ...
Page 186: ...186 APPENDIX B LEAD LAG WIRING 19XR Lead Lag Schematic Series Cooler Flow a19 1655 ...
Page 187: ...187 APPENDIX B LEAD LAG WIRING cont 19XR Lead Lag Schematic Parallel Cooler Flow a19 1717 ...