Bryant 580J*04--12 Installationshandbuch PDF herunterladen (Seite 27)

Table 4 -- RTU Open Alarms (cont)

POINT NAME

BACnet Object

NAME

ACTION TAKEN BY

CONTROL

RESET METHOD PROBABLE CAUSE

Indoor Air Quality Sen sor iaq_sensor_fail No IAQ Operation Automatic Sens o r reading is out of range. Bad

sensor, bad wiring, failure to recei v e

Network or sensor configured incorrectly.

Outdoor Air Quality Sensor oaq_fail Control uses default OAQ valu e of

400 ppm.

Automatic Sensor reading is out of range. Bad

sensor, bad wiring, failure to receive

Networkvalue,orsensorconfigured

incorrectly.

Economizer Operation econ_opr Alert Gener ated Automatic This al arm is active whenever an

economizer fault is detected as required

by the California Title 24 Economizer

FDD logic.

Economizer f ault conditions include;

Failed to Fully Open, Failed to Open,

Failed to Close, and Stuck Open.

Space Temperature spt_alrm_status Alert Generated Automati c Space Temperatu re value is less than

the low limit value or greater than the

high limit value

Supply Air Temperature sat_alarm Alert Generated Automatic SAT is greater than the high limit value

or less than the low limit value for more

than 5 minutes

Setpoint Slider slidepot_alarm Set Offset to zero Automatic STO sensor is open for more than 5

seconds

Switch Configuration di_cfg_alarm Disable only wrong switch

functions

Configure correctly More than one discrete input is confi g ure d

to provide the same function.

Analog Input

Configuration

ai_cfg_alarm Disable 4 selectable analog inputs Configure correctly More than one analog input is

configured to provide the same

function.

Space Relative Humidity sprh_hi_alarm Alert Generated Automatic Indoor RH is greater than the high limit

value or less than the low limit value for

more then 15 minutes

Indoor Air Quality iaq_alarm Alert Gener ated Automatic CO

ppm reading is above the

configuration for 1 minute

Supply Fan Runtime sfan_rntm_alarm Alert Gener ated zero the timer Supply fan run time exceeded user

defined limit

Compressor 1 Runtime comp1_rntm_alarm Alert Gener ated zero the timer Compressor #1 run time li mit is exceeded

Compressor 2 Runtime comp2_rntm_alarm Alert Gener ated zero the timer Compressor #2 run time li mit is exceeded

Filter filter_alarm Alert Gener ated Automatic / res et

timer

Dirty Filter, supply fan run time exceeded,

filter switch configuration wrong.

TS---5580J---02

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