15
Charge Calculation (Appears with Variable
Capacity Heat Pump)
S
Calculates the amount of charge needed in the system. Takes
into account lineset length, liquid line diameter, and indoor coil
model.
Checkout -- Ventilator
Speed:
S
OFF
S
LOW
S
HIGH
The ventilator can be exercised through all of its operating speeds
with this menu option.
Checkout -- Zoning
Duct Assessment
This is the same Duct Assessment that runs on first start--up.
Measures duct capacity for each zone. The Duct Assessment will
perform an airflow measurement on each zone and determine the
relative size of each zone along with damper leakage. This
assessment will require approximately 1 minute for each zone in
the system.
NOTE
: A Duct Assessment will automatically occur every 24
hours at selected time to check system static and calibrate dampers.
Sensor / Damper Check:
The Sensor/Damper Check allows the installer to check each zone
damper for operation, as well as insure the zone sensor corresponds
to that particular zone.
When first initiated, the Zone 1 damper will fully open, and all
other zones will close. Using the scroll button, the installer can
select each zone and verify the damper is fully open while all other
dampers remain closed.
After proper damper operation has been verified, the installer can
now check and verify that each Remote Room Sensor corresponds
to the proper zone damper in the same zone. Start from the top and
highlight zone 1 to open damper. Temporarily disconnect any other
zone Remote Room Sensor (at sensor location). That zone damper
will now open, while the Zone 1 damper will close.
EXAMPLE: If the Zone 2 Remote Room Sensor is disconnected,
the Zone 2 damper will now open as indicated on the User
Interface 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:
S
LOW
S
MED LOW
S
MED
S
MED HIGH
S
HIGH (default)
S
NO LIMIT
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 ZONE, then select AIRFLOW LIMIT: 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
NO LIMIT.
NOTE
: Selecting a lower airflow noise limit may decrease the
homeowner’s comfort in that zone.
Sensor Types:
Shows list of all zones with corresponding sensor types.
UI = User Interface
SS = Smart Sensor
RS = Remote Sensor
Checkout -- System Access Module (SAM)
See System Access Module Installation Instructions for full details.
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
(Hybrid Heat). A sample service menu is shown in Fig. 34.
SERVICE INFO
FURNACE STATUS
HEAT PUMP STATUS
LAST 10 SYSTEM FAULTS
RUN/FAULT HISTORY
TODAY’S DATE
MODEL/SERIAL NUMBER
SERVICE PHONE NUMBER
BACK SELECT
A03205
Fig. 34 -- Service Menu
Service -- Furnace Status or Gas PAC Status
The Status screens will show all of the current operating parameters
of each installed piece of equipment.
NOTE
: To view a less detailed Equipment Status screen, press the
right side button. This will display equipment stage, fan status,
actual and target humidify settings.
Heat Stage:
S
OFF, LOW, HIGH
Displays stage of heat that the furnace is currently delivering.
Airflow CFM:
S
(furnace model dependent)
Cubic Feet per Minute of air the User Interface is currently
requesting.
Inducer RPM (90% furnaces only):
S
Actual inducer motor RPM value.
Blower RPM:
S
Actual blower motor RPM value.
Static Press:
S
Inches of water. Displays calculated static pressure that the
furnace is currently experiencing.
S
If static pressure cannot be accurately calculated, the display will
read UNKNOWN. When this is seen, the system is adjusting to
high static pressure by cutting back blower RPM.
Lockout Timer:
S
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:
S
OFF, LOW, MED, HIGH
Displays stages of electric heat that the fan coil is currently
delivering.
Airflow CFM:
S
(fan coil model number dependent)
UIZ0
1
--
V
