Perform A Control Test - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

left, first) are used. The others do not matter. The bits can be
set by any device which can access and change configuration
tables. If any of these 3 bits is set to 1, the controller (ICVC,
for example) will broadcast any alarms which occur.
• first bit = 1 indicates that the alarm should be read
and processed by a "front end" device, such as a
ComfortWORKS® device.
• second bit = 1 indicates that the alarm should be read and
processed by a TeLINK™ or Autodial Gateway module.
• fourth bit = 1 indicates that the alarm should be read and
processed by an alarm printer interface (an optional
module), ServiceLink™, or DataLINK™ modules.
The Re-Alarm time is a time period after which, if a preex-
isting and previously broadcast alarm has not been cleared, it
will be rebroadcast on the CCN network. See Fig. 36.
Other Tables — The CONSUME, NET_OPT, and RUN-
TIME screens contain parameters used with a CCN system.
See the applicable CCN manual for more information on these
screens. These tables can only be defined from a CCN
Building Supervisor.
ALARM CONTROL
ALARM ROUTING
This decision determines which CCN system elements will receive
and process alarms sent by the CSM. Input for the decision consists
of eight digits, each of which can be set to either 0 or 1. Setting a
digit to 1 specifies that alarms will be sent to the system element
that corresponds to that digit. Setting all digits to 0 disables alarm
processing. Digits in this decision correspond to CCN system
elements in the following manner:
Alarm Printer Interface Module
Autodail Gateway
Local Building Supervisors(s)
or ComfortWORKS
1
a19-1627
NOTE: If your CCN does not contain ComfortWORKS® controls or
a Building Supervisor, Autodial Gateway, or APIM to serve as an
alarm acknowledger, set all digits in this decision to 0 in order to
prevent unnecessary activity on the CCN Communication Bus.
Allowable Entries 00000000 to 11111111
0 = Disabled, 1 = Enabled
Default Value 10000000
Fig. 36 — Alarm Control and Alarm Routing
Perform a Control Test —
status by performing an automated control test. Access the
CONTROL TEST table and select a test to be performed
function. See Table 13.
The Automated Control Test checks all outputs and inputs
for function. In order to successfully proceed with the controls
test, the compressor should be off, no alarms showing, and volt-
age should be within ±10% of Nameplate value. The compres-
sor can be put in OFF mode by pressing the STOP push button
on the ICVC. Each test asks the operator to confirm the opera-
tion is occurring and whether or not to continue. If an error oc-
curs, the operator can try to address the problem as the test is
being done or note the problem and proceed to the next test.
NOTE: Enter guide vane calibration to calibrate guide vane
actuator feedback potentiometer input on CCM (Plug J4 upper
terminals 9 and 10).
NOTE: If during the control test, the guide vanes do not open,
verify the low pressure alarm is not active. (An active low
pressure alarm causes the guide vanes to close.)
NOTE: The oil pump test will not energize the oil pump if
cooler pressure is below –5 psig (–35 kPa).
1
1 0 0 0 0 0
Check the safety controls
Table 13 — Control Test Menu Functions
TESTS TO BE
PERFORMED
1. CCM Thermistors Entering Chilled Water
2. CCM Pressure
Transducers
3. Pumps
4. Discrete
Outputs
5. IGV & SRD
Actuator
6. Head Pressure
Output
7. Diffuser Actuator* Open/Close (independent of guide vanes)
8. Pumpdown
unused
Lockout
9. Terminate
Lockout
10. Guide Vane
Calibration
*Diffuser tests function only on size 4 and 5 compressor with diffuser
control enabled.
NOTE: During any of the tests, an out-of-range reading will have an
asterisk (*) next to the reading and a message will be displayed if
diffuser control is enabled.
When the control test is finished or the
pressed, the test stops, and the CONTROL TEST menu
displays. If a specific automated test procedure is not
completed, access the particular control test to test the function
when ready. The CONTROL TEST menu is described in
Table 13.
67
DEVICES TESTED
Leaving Chilled Water
Entering Condenser Water
Leaving Condenser Water
Evap Saturation Temp
Comp Discharge Temp
Comp Thrust Brg Temp
Oil Sump Temp
Comp Motor Winding Temp
Spare Temperature 1
Spare Temperature 2
Remote Reset Sensor
Evaporator Pressure
Condenser Pressure
Oil Pump Delta P
Chilled Water Delta
Condenser Water Delta P
Transducer Voltage Ref
Humidity Sensor Input
Relative Humidity
Oil Pump — Confirm Pressure
Chilled Water — Confirm Flow and Delta P
Condenser Water — Confirm Delta P
Oil Heater Relay
Hot Gas Bypass Relay
Tower Fan Relay Low
Tower Fan Relay High
VFD Coolant Solenoid
Alarm Relay
Shunt Trip Relay
Open/Close
If present, split ring diffuser will operate in
coordination with the guide vanes per con-
figured schedule.
Increase/Decrease 4-20 mA output
When using pumpdown/lockout, observe
freeze up precautions when removing
charge:
Instructs operator which valves to close and
when.
Starts chilled water and condenser water
pumps and requests flow confirmation.
Monitors
Evaporator pressure
Condenser pressure
Evaporator temperature during
pumpout procedures
Turns pumps off after pumpdown.
Locks out compressor.
Starts pumps and monitors flows.
Instructs operator which valves to
open and when.
Monitors
Evaporator pressure
Condenser pressure
Evaporator temperature during
charging process
Terminates compressor lockout.
Automatic, displays guide vane position sig-
nal voltage. This test is required before first
startup with new Actuator or Controller.
EXIT
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