Specifications

ManualsBrandsCarrier ManualsAir Compressor19XRV

should be only one device on a CCN network which is desig-

nated as the Time Broadcaster.

ALARM ROUTING — This is in the table SERVICE–>

EQUIPMENT CONFIGURATION–>NET_OPT under the

heading Alarm Configuration. ALARM ROUTING consists

of an 8-bit binary number. Only bits 1, 2, and 4 (counting

from the left, first) are used. The others do not matter. The bits

can be set by any device which can access and change configu-

ration 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 pro-

cessed by a “front end” device, such as a Comfort-

WORKS

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 mod-

ule) or ServiceLink™ 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. 41.

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 Build-

ing Supervisor.

Perform a Control Test — Check the safety controls

status by performing an automated control test. Press the

STOP button on the ICVC to place the chiller in STOP mode.

The CONTROL TEST screen can only be accessed when the

chiller is in STOP mode. Access the CONTROL TEST table

and select a test to be performed function (Table 15).

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

voltage should be within ±10% of rating plate value. The com-

pressor can be put in OFF mode by pressing the STOP push-

button on the ICVC. Each test asks the operator to confirm the

operation is occurring and whether or not to continue. If an er-

ror occurs, the operator can try to address the problem as the

test is being done or note the problem and proceed to the next

test.

Table 15 — Control Test Menu Functions

LEGEND

*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 the diffuser control is

enabled.

Alarm Printer Interface Module

Autodial Gateway

Local Building Supervisors(s)

or ComfortWORKS

unused

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:

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. 41 — Alarm Control and Alarm Routing

a19-1627

TESTS TO BE

PERFORMED

DEVICES TESTED

1. CCM Thermistors Entering Chilled Water

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

2. CCM Pressure

Transducers

Evaporator Pressure

Condenser Pressure

Oil Pump Delta P

Condenser Water Delta P

Transducer Voltage Ref

3. Pumps Oil Pump — Confirm Delta P

Chilled Water — Confirm flow and

Delta P

Condenser Water — Confirm flow and

Delta P

4. Discrete Outputs Oil Heater Relay

Hot Gas Bypass Relay

Tower Fan Relay Low

Tower Fan Relay High

Alarm Relay

Shunt Trip Relay

5. IGV and SRD

Actuator

Open/Close

Software version 10 or higher:

Guide vanes and diffuser will both

move. The relative movement during

Control Test does not apply to opera-

tion. During operation, guide vane and

diffuser are controlled independently.

Earlier software versions:

If present, split ring diffuser will oper-

ate in coordination with the guide

vanes per configured schedule.

6. Head Pressure

Output

Increase/Decrease 4-20 mA output

7. Diffuser Actuator Open/Close (independent of guide

vanes)

8. Pumpdown Lockout 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 confirms flows.

Monitors

Evaporator pressure

Condenser pressure

Evaporator temperature during

pumpout procedures

Turns pumps off after pumpdown.

Locks out compressor.

9. Terminate Lockout 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.

10. Guide Vane

Calibration

Automatic, displays guide vane posi-

tion signal voltage. This test is required

before first startup with new actuator,

new controller, or new software.

Calibrates guide vane input on CCM.

CCM — Chiller Control Module

IGV — Inlet Guide Vane

SRD — Spilt Ring Diffuser