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27
Table 20 — Unit States
Table 21 summarizes the unit control method and stop or go
status with regard to the following parameters set in the Carrier
Controller module:
• Machine Control Method: Machine Control Method as se-
lected on the unit Start/Stop screen.
•
CHIL_S_S
: Current CCN chiller start/stop force com-
mand (enable/disable).
Main Menu
General Parame-
ters
Net:Cmd Start/Stop
.
•
ONOFF_SW
: Start-stop contact status when unit is under re-
mote operating type.
Main Menu
Inputs Status
Re-
mote On/Off Switch
.
•
CHIL_OCC
: Chiller occupied state. If the occupancy
override input switch is closed, the chiller remains occu-
pied regardless of the set point scheduled selection.
Main
Menu
General Parameters
Net:Cmd Occupied
.
•
MS_CTRL
: Master control type. This parameter status will
determine if the master unit is going to be controlled locally,
remotely, or through CCN.
Main Menu
Maintenance
Menu
Master Slave Control
(0=disabled, 1=master,
2=slave).
• EMSTOP: CCN emergency stop command (enable/disable).
Main Menu
General Parameters
Emergency Stop.
• Alarm shutdown: Unit is totally stopped due to alarm.
The Machine Control Method and Parameter Status combina-
tions listed in Table 21 will determine the actual unit running
state.
NOTE: When changing from one Machine Control Method
(Local On, Local Schedule, Network, Remote, or Master) to
another, the unit will observe a transition through the Off state
before being allowed to start again. At this time the on-to-off
delay is always applied.
Chilled Water Set Point Configuration
The chilled water set point and fluid type configuration will de-
termine the chiller operating conditions.
FLUID SET POINT CONTROL LOCATION
The factory default for the chilled water fluid set point is to
control to the leaving water temperature. An option to config-
ure the machine for entering water control is available. To con-
figure this option go to
Main Menu
Configuration Menu
Service Parameters
. The default for
Entering Fluid Con-
trol
is Off (leaving fluid control is the default condition). To
enable Entering Water Control, change
Entering Fluid Con-
trol
to
On
. Entering Water Control is recommended for con-
stant flow applications only.
COOLING SET POINT SELECTION
The
Control Point
(shown in the lower right corner of the Home
Screen, or
Main Menu
General Parameters
Control
Point
) represents the water temperature that the unit must pro-
duce. The unit will vary the capacity depending on the load condi-
tions in order to satisfy the set point. The
Control Point
(CTRL_PNT) is calculated based on the Active Setpoint (
Main
Menu
General Parameters
) [Main Menu and General Param-
eters in bold italics]. and the reset calculation, where Control Point
= Current Se Temperature Reset. (See “Temperature Re-
Control Point
can be written to by the Building
Management System, instead of the set point calculation only if
Network is selected as the Machine Control Method for the unit.
See
Main Menu
General Parameters
Local=0 Net.-1 Re-
mote=2
to verify operating type.
Table 21 — Start/Stop Control
LEGEND
STATE
DESCRIPTION
Off
Unit is commanded to be off
Stopping
Unit is currently stopping (after a manual, emergency, or
shutdown request). Next state will be Off.
Delay
Unit is in delay at start-up (waiting for the end of the On/Off
delay to be reached). Next state will be Running.
Running
Unit compressor capacity is more that 0% (unit has started
running)
Ready
Unit compressor capacity is 0%. Unit is ready to start.
Override
The compressor cannot start because of an override (SST,
SCT, etc.)
Tripout
Unit is Off due to an alarm
Test
Unit is in Quick Test
MACHINE CONTROL METHOD
PARAMETER STATUS
OPERATING
TYPE
UNIT
STATUS
CHIL_S_S
ONOFF_SW
MS-CTRL
CHIL_OCC
EMSTOP
Alarm
Shutdown
Local Off
—
—
—
—
—
—
Local
Off
Local On
—
—
—
—
Disable
No
Local
On
Local Schedule
—
—
—
Yes
Disable
No
Local
On
—
—
—
No
—
—
Local
Off
Remote
—
Open
—
—
—
—
Remote
Off
—
—
—
No
—
—
Remote
Off
Closed
Yes
—
—
Remote
On
CCN
Disable
—
—
—
—
—
CCN
Off
—
—
—
No
—
—
CCN
Off
Enable
—
—
Yes
Disabled
No
CCN
On
Master
—
—
Local
No
—
—
Local
Off
—
Open
Remote
—
—
—
Remote
Off
—
—
Remote
No
—
—
Remote
Off
Disable
—
CCN
—
—
—
CCN
Off
—
—
CCN
No
—
—
CCN
Off
—
—
Local
Yes
Disable
No
Local
On
—
Closed
Remote
Yes
Disable
No
Remote
On
Enable
CCN
Yes
Disable
No
CCN
On
—
—
—
—
—
Enable
—
—
Off
—
Yes
—
Off
CHIL_OCC
—
Chiller Occupied State
MA St
—
Master/Slave Operating Type
CHIL_S_S
—
CCN Chiller Start/Stop Command
MS-CTRL
—
Master/Slave Control
EMSTOP
—
Emergency Stop
ONOFF_SW
—
Remote On/Off Switch
Summary of Contents for AquaForce 30XV140
Page 79: ...79 Fig 76 VFD Communication Wiring Compressor A B Fan VFD A1 A2 B1 B2...
Page 228: ...228 Fig 90 30XV Typical Field Wiring Schematic cont...
Page 229: ...229 Fig 91 30XV Standard Tier 140 275 All Voltages Power Schematic NOTE See Legend on page 226...
Page 230: ...230 Fig 92 30XV Standard Tier 300 325 All Voltages Power Schematic NOTE See Legend on page 226...
Page 240: ...240 Fig 99 30XV Communication Wiring...
Page 241: ...241 Fig 100 30XV 115V Control Wiring All Tonnages All Voltages...
Page 242: ...242 Fig 101 30XV 24V Control Wiring 30XV140 325 All Voltages...
Page 243: ...243 Fig 101 30XV 24V Control Wiring 30XV140 325 All Voltages cont...
Page 244: ...244 Fig 102 30XV 24V Control Wiring 30XV350 500 All Voltages...
Page 245: ...245 Fig 102 30XV 24V Control Wiring 30XV350 500 All Voltages cont...
Page 246: ...246 Fig 103 Component Arrangement Diagram for 30XV140 325...
Page 247: ...247 Fig 103 Component Arrangement Diagram for 30XV140 325 cont...
Page 248: ...248 Fig 104 Component Arrangement Diagram for 30XV350 500...
Page 337: ...337 APPENDIX J FACTORY SUPPLIED PUMPS cont Fig L System Information...
Page 338: ...338 APPENDIX J FACTORY SUPPLIED PUMPS cont Fig M Unit and Language Settings...
Page 341: ...341 APPENDIX J FACTORY SUPPLIED PUMPS cont Fig P Data Input 2...
Page 342: ...342 APPENDIX J FACTORY SUPPLIED PUMPS cont Fig Q Data Input 3...
Page 347: ...347 APPENDIX J FACTORY SUPPLIED PUMPS cont Fig U Pump Wiring Diagram...