Bryant 580J*04--12 Manual de instalación descargar pdf (Pagina 29)

OAQ Sensor

This alarm indicates the mA input at the associated

channel falls below 3.5 mA or rises above 21 mA, or the

Network value for space RH is no longer being received.

Cooling, heating, and supply fan operation continues.

However, the controller’s IAQ control function uses

400ppm as the fixed outdoor air CO2 level until the fault

condition is corrected.

Space Temperature

When Occupied, a Space Temperature alarm is generated

if the space temperature falls below the lower limit or

rises above the upper limit.

When Unoccupied, an unoccupied space temperature

alarm is generated when the space temperature falls below

the alarm configuration Unoccupied Low SPT Alarm

Limit or when the space temperature rises above the alarm

configuration Unoccupied High SPT Alarm Limit.

The following values are related to the Space Temperature

alarm:

Alarming Temperature – This variable displays the value

of the space temperature that caused the alarm and is only

visible when the space temperature is in an alarm state.

Alarm Limit Exceeded – This variable displays the value

of the alarm setpoint that was exceeded by the alarming

space temperature and is only visible when the space

temperature is in an alarm state.

Supply Air Temperature

This alarm indicates the supply air temperature fell below

the alarm configuration Low SAT Alarm Limit or

exceeded the alarm configuration High SAT Alarm Limit

for 5 minutes. This alarm is inhibited until the RTU has

been running for 30 minutes to allow for system

stabilization after startup.

Setpoint Slider

This alarm indicates an open circuit is detected at the

setpoint adjustment input. This can only occur if the

Space Sensor Type is set to T56. Note that only an open

circuit results in an alarm. A short across this input offsets

the setpoints negatively by the amount configured by

configuration Setpoint Adjustment Range.

Switch Configuration

This occurs if more than one binary input (inputs 3, 5, 8,

and 9) is configured for the same function. When this

happens the two inputs (or more) configured wrong will

be disabled as an inputs. This alarm will automatically be

cleared when configuration is corrected.

An example of this would be: Input 3 = Compressor

Safety, input 5 = Fan Status, input 8 = Fan Status, and

input 9 = Humidistat; the alarm would be active, unit

would run, compressor safety and humidistat would

function normally, and Fan Status (inputs 5 & 8) will be

interpreted as “No Function.”

Analog Input Configuration

This occurs if more than one analog input (inputs 1 & 2)

is configured for the same sensor. When this happens the

two inputs will be disabled as inputs. This alarm will

automatically be cleared when configuration is corrected.

An example of this would be: Input 1 = IAQ Sensor, input

2 = IAQ Sensor; the alarm would be active, unit would

run, but the IAQ Sensor (inputs 1 & 2) will be interpreted

as “No Function.”

Space Relative Humidity

This alarm indicates the space humidity fell below the

alarm configuration Low Space Humidity Alarm Limit or

exceeded the alarm configuration High Space Humidity

Alarm Limit for 10 minutes. This alarm is inhibited until

the RTU runs for 15 minutes to allow for system

stabilization after startup.

Indoor Air Quality

This alarm indicates the space CO

level exceeds the

alarm configuration Occupied High CO

Alarm Limit for

1-minute. This alarm will be inhibited until the RTU has

been running for 2-minutes to allow for system

stabilization after startup.

Supply Fan Runtime

This alarm indicates the accumulated runtime exceeds the

unit configuration Supply Fan Service Alarm Timer value

(when not set to 0). This alarm is most commonly used to

indicate an equipment maintenance interval is due. The

supply fan runtime accumulator may be reset by setting

the maintenance point Reset Supply Fan Runtime Alarm

to Clear, and then back to Run – acknowledging each

selection by clicking the OK button when it appears.

Setting unit configuration Supply Fan Service Timer value

to 0 disables the supply fan runtime alarm function.

Compressor 1 Runtime

This alarm indicates the accumulated runtime exceeds the

unit configuration Compressor 1 Service Alarm Timer value

(when not set to 0). This alarm is most commonly used to

indicate an equipment maintenance interval is due. The

Compressor 1 Runtime accumulator may be reset by setting

the maintenance point Reset Comp 1 Runtime Alarm to

Clear, and then back to Run – acknowledging each selection

by clicking the OK button when it appears. Setting unit

configuration Compressor 1 Service Timer value to 0

disables the Compressor 1 Runtime alarm function.

Compressor 2 Runtime

This alarm indicates the accumulated runtime exceeds the

unit configuration Compressor 2 Service Alarm Timer value

(when not set to 0). This alarm is most commonly used to

indicate an equipment maintenance interval is due. The

Compressor 2 runtime accumulator may be reset by setting

the maintenance point Reset Comp 2 Runtime Alarm to

Clear, and then back to Run – acknowledging each selection

by clicking the OK button when it appears. Setting unit

configuration Compressor 2 Service Timer value to 0

disables the Compressor 2 runtime alarm function. Note that

this function is unavailable if the service configuration

Compressor Stages value is not set to Two Stages.

Filter

This alarm indicates the accumulated runtime exceeds the

unit configuration Filter Service Alarm Timer value

(when not set to 0). This alarm is most commonly used to

indicate a filter replacement is due. Reset the filter service

runtime accumulator by setting the maintenance point

Reset Filter Runtime Alarm to On, back to Off, and

clicking the OK button after each setting. Setting unit

configuration Filter Service Alarm Timer value to 0

disables the filter service alarm function.

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Bryant 580J*04--12 Manual de instalación Pagina 29

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