Carrier 30XW150-400 Refrigerator User Manual

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Set this variable to 2 for stand-alone units that are not con-

nected to a CCN. With this configuration, daylight saving time

and holiday determination will be done without broadcasting

through the bus. This variable can only be changed when using

the Touch Pilot display, ComfortVIEW™ software, or

Network Service Tool. This variable cannot be changed with

the Navigator display.

To configure this option with the Touch Pilot display:

BROADCAST ACKNOWLEDGER — This configuration

defines if the chiller will be used to acknowledge broadcast

messages on the CCN bus. One broadcast acknowledger is

required per bus, including secondary buses created by the use

of a bridge. This variable can only be changed with the Touch

Pilot display, ComfortVIEW software, or Network Service

Tool. This variable cannot be changed with the Navigator

display.

To configure this option with the Touch Pilot display:

Alarm Control

ALARM ROUTING CONTROL — Alarms recorded on the

chiller can be routed through the CCN. To configure this op-

tion, the ComfortLink control must be configured to determine

which CCN elements will receive and process alarms. 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. Set-

ting all digits to 0 disables alarm processing. The factory de-

fault is 00000000. See Fig. 26. The default setting is is based

on the assumption that the unit will not be connected to a net-

work. If the network does not contain a ComfortVIEW, Com-

fortWORKS

, TeLink, DataLINK™, or BAClink module, en-

abling this feature will only add unnecessary activity to the

CCN communication bus.

This option can be modified by the Touch Pilot display. It

cannot be modified with the Navigator display.

Typical configuration of the Alarm Routing variable is

11010000. This Alarm Routing status will transmit alarms to

ComfortVIEW software, TeLink, BAClink, and DataLINK.

To configure this option with the Touch Pilot display:

ALARM EQUIPMENT PRIORITY — The ComfortVIEW

device uses the equipment priority value when sorting alarms

by level. The purpose of the equipment priority value is to de-

termine the order in which to sort alarms that have the same

level. A priority of 0 is the highest and would appear first when

sorted. A priority of 7 would appear last when sorted. For ex-

ample, if two chillers send out identical alarms, the chiller with

the higher priority would be listed first. The default is 4. This

variable can only be changed when using the Touch Pilot dis-

play, ComfortVIEW software, or Network Service Tool. This

variable cannot be changed with the Navigator™ display. To

configure this option with the Touch Pilot™ display:

COMMUNICATION FAILURE RETRY TIME — This vari-

able specifies the amount of time that will be allowed to elapse

between alarm retries. Retries occur when an alarm is not

acknowledged by a network alarm acknowledger, which may

be either a ComfortVIEW software or TeLink. If acknowledge-

ment is not received, the alarm will be re-transmitted after the

number of minutes specified in this decision. This variable can

only be changed with the Touch Pilot display, ComfortVIEW,

or Network Service Tool. This variable cannot be changed with

the Navigator display. To configure this option with the Touch

Pilot display: