Service Menus, Service = Furnace Status

display. The word ″FAIL″ will also be displayed instead of the actual temperature for Zone 2. Reconnect Zone 2 sensor and try all remaining sensors one at a time in the system. Smart Sensors may also be checked, see Smart Sensor Installation Instructions for procedure.

AIRFLOW LIMITS:

•Low

•Medium

•High (default)

•Maximum

Because there is no bypass damper, the Zone Airflow Limit check will allow the installer to assess the airflow noise generated by the system providing the maximum amount of airflow to each zone. Select 9 ZONE, then select AIRFLOW LIMIT: Low, Medium, High (default), or Maximum. When Start is pressed (right side button), the selected zone’s damper will fully open, all others will close, and the indoor unit will provide the maximum airflow for that zone (as selected in Setup = ZONING, Airflow Limits). If the airflow noise is objectionable, the installer can select a lower airflow noise limit. If the noise is not objectionable, the installer should leave High selected, or even Maximum.

NOTE: Selecting a lower airflow noise limit may decrease the homeowner’s comfort in that zone.

SERVICE MENUS

The Service Info menu will only show the equipment installed in the system. Below is a sample using a furnace and a heat pump (dual fuel). A sample service menu is shown in Fig. 25.

SERVICE INFO

FURNACE STATUS

HEAT PUMP STATUS

ZONING STATUS

LAST 10 SYSTEM FAULTS

RUN/FAULT HISTORY

TODAY’S DATE

MODEL/SERIAL NUMBER

SERVICE PHONE NUMBER

BACK SELECT

A04092

Fig. 25 — SERVICE INFO MENUS

Service = FURNACE STATUS

The Status screens will show all of the current operating param- eters of each installed piece of equipment.

HEAT STAGE:

•OFF, LOW, HIGH

Displays stage of heat that the furnace is currently delivering.

AIRFLOW CFM:

•(furnace model dependent)

Cubic Feet per Minute of air the blower is currently delivering.

LEAVING AIR TEMP:

This sensor is NOT required. However, if LAT sensor is connected to the Damper Control Module, the sensor will read leaving air temperature of the furnace.

COIL TEMP:

This sensor is NOT required. However, if HPT sensor is connected to the Damper Control Module, the sensor will read temperature at that location (i.e. if placed in return-air, will read return-air temperature).

INDUCER RPM (90% furnaces only):

•Inducer motor RPM value.

BLOWER RPM:

•Blower motor RPM value.

—11—

STATIC PRESS:

•Inches of water. Displays static pressure that the furnace is currently experiencing.

LOCKOUT TIMER:

•Seconds

If a lockout timer is active, this will show the current time value. See furnace manual for details on lockout timers.

Service = FAN COIL STATUS

ELECTRIC HEAT:

•OFF, LOW, MED, HIGH

Displays stages of electric heat that the fan coil is currently delivering.

AIRFLOW CFM:

•(fan coil model number dependent)

Cubic Feet per Minute of air the blower is currently delivering.

LEAVING AIR TEMP:

This sensor is NOT required. However, if LAT sensor is connected to the Damper Control Module, the sensor will read leaving air temperature of the fan coil.

COIL TEMP:

This sensor is NOT required. However, if HPT sensor is connected to the Damper Control Module, the sensor will read temperature at that location (i.e. if placed down stream from evaporator coil, and before electric heat, will read coil leaving air temperature).

BLOWER RPM:

•Blower motor RPM value

STATIC PRESS:

•Inches of water

Displays static pressure that the fan coil is currently experiencing.

Service = HEAT PUMP / AC STATUS

STAGE: (HEAT / COOL):

•OFF, LOW, HIGH

Displays stage of heating or cooling that the Heat Pump/AC is delivering.

DEFROST:

•NO, YES

Displays status of defrost mode if heat pump.

AIRFLOW CFM:

•Indoor unit CFM measurement.

LEAVING AIR TEMP:

This sensor is NOT required. However, if LAT sensor is connected to the Damper Control Module, sensor will read leaving air temperature of the indoor unit.

COIL TEMP (outdoor unit):

•Degrees F.

Temperature of the outdoor unit coil (only available on 2-speed communicating outdoor units).

BLOWER RPM:

•RPM feedback from indoor motor.

STATIC PRESS:

•Static pressure of indoor unit.

Service = ZONING STATUS

ZONE STATUS:

This screen will show each zone in the system with the corre- sponding damper position (POS), and CFM being delivered to each zone. Damper position range from 0 to 15 (0=closed, 15=open).

SYSTXBBUIZ01 specifications

The Bryant SYSTXBBUIZ01 is a versatile and innovative thermostat designed to optimize the performance and efficiency of heating, ventilation, and air conditioning (HVAC) systems. As part of Bryant's commitment to providing reliable climate control solutions, this unit integrates advanced technologies for seamless user experience and enhanced energy savings.

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