GVZC20 Service Manual
SERVICING
48
HEAT PUMP ADVANCED FEATURE MENU
SUBMENU ITEM INDICATION/USER MODIFIABLE OPTIONS COMMENTS
ALL (The Active and History Fault codes are displayed.) Active fault code and up to 6 fault code histories.
ACTIVE (The Active Fault codes are displayed.) Active fault code only.
HISTORY (The History Fault codes are displayed .) Up to 6 fault code histories.
REFRESH N/A Selecting this menu will refresh the display.
SUBMENU ITEM INDICATION/USER MODIFIABLE OPTIONS COMMENTS
HVAC DEVICE HEAT PUMP The type of HVAC Device.
FIRMWARE VERSION ** Specific number associated with the control software.
MODEL NUMBER *VZC200*01*
This number match the model name found on the
serial plate.
SERIAL NUMBER *********
This number match the serial number found on the
serial plate.
SUBMENU ITEM INDICATION(Units) COMMENTS
HEAT CAPACITY REQUEST %
The request for heating.
0% means the system is off.
All other values mean the system is running.
COOL CAPACITY REQUEST %
The request for cooling.
0% means the system is off.
All other values mean the system is running.
HEAT CAPACITY REQUEST DURING DEFROST %
Indoor heat request during defrost operation.
It states that additional capacity is being requested or
if it is not being requested.
The outdoor unit will request supplemental heating
while a defrost cycle is running.
0% means defrost is not being requested and
additional heating is not requested and additional
heating is not required.
All other values mean defrost is being requested and
additional heat is bein
g
re
q
uested.
DEHUMIDIFICATION REQUEST %
Request for dehumidification.
0% means dehumidification is not being requested.
All other values mean dehumidification is being
requested.
OUTDOOR FAN SPEED RPM
Current speed of the outdoor fan in rotations per
minute.
REQUESTED AIRFLOW CFM
This is the airflow the indoor unit will try to deliver
while the unit is active.
REPORTED AIRFLOW CFM
Indoor airflow (in cubic feet per minute) as reported
by the indoor unit.
BOOST MODE OFF or ON
If this feature is available and enabled, an inverter
can ramp the compressor above default speeds to
increase capacity.
This shows if the feature is active or inactive.
To check if this function is enabled, find the Boost
Mode Enable item in the settin
g
for this unit.
SUBMENU ITEM INDICATION(Units) COMMENTS
OUTDOOR TEMP F Displays the outdoor air temperature.
COIL TEMP F Displays the outdoor coil temperature.
LIQUID LINE TEMP F Displays the outdoor liquid temperature.
DISCHARGE TEMP F Displays the outdoor discharge temperature.
DEFROST SENSOR F Displays the defrost temperature.
SUCTION PRESSURE PSI
Displays the pressure of taken slightly upstream of
the suction accumulator.
HEAT PUMP / FAULT CODE HISTORY
HEAT PUMP / CONFIGRATION INFO
HEAT PUMP / DEVICE STATUS
HEAT PUMP / SENSOR DATA
A representative menu is posted. Item ames and setting value are subject to change.










