Daikin DZ18VC Series Installation Instructions Manual page 43

System Setup
This menu allows for the setting of BOOST MODE. BOOST
MODE enables the system to operate at a higher compressor
speed than maximum compressor speed.
BOOST MODE temperature can be adjusted in BOOST
TEMP menu. When ambient temperature gets higher than
BOOST MODE temperature, the system will operate in
BOOST MODE.
Equipment Test
The mandatory system verification test is enabled from this
menu, which enables a functional check of the equipment,
in addition to ensuring proper stop valve position. The heat
pump unit can be set to manual defrost from this menu by
selecting FORCE DF CYCLE.
Cool Set-up
This menu allows for the adjustment of several cooling per-
formance variables. Cool Airflow Trim (range from -15% to
+15% in 3% increments), Cool Airflow Profiles, Cool Fan ON
Delay, Cool Fan OFF Delay and Dehumidification Select
(enable or disable dehumidification) can be adjusted in this
menu. You can also reset this entire menu to factory default
settings. See the following images showing the four cooling
airflow profiles.
• Profile A provides only an OFF delay of one (1) minute
at 100% of the cooling demand airflow.
100% CFM
OFF
• Profile B ramps up to full cooling demand airflow by first
stepping up to 50% of the full demand for 30 seconds.
The motor then ramps to 100% of the required airflow.
A one (1) minute OFF delay at 100% of the cooling
airflow.
50% CFM
OFF
1/2 min
100% CFM
1 min
100% CFM 100% CFM
1 min
• Profile C ramps up to 82% of the full cooling demand
airflow and operates there for approximately 7 1/2
minutes. The motor then steps up to the full demand
airflow. Profile C also has a one (1) minute 100% OFF
delay.
OFF
• Profile D (default) ramps up to 50% of the demand
for 1/2 minute, then ramps to 82% of the full cooling
demand airflow and operates there for approximately
7 1/2 minutes. The motor then steps up to the full
demand airflow.
OFF delay.
OFF
See service manual for more detailed information.
Cool Run Values
Depending on the system configuration, adjusting the maxi-
mum compressor RPS (revolutions per second) may be re-
quired. Necessary adjustments to the maximum compressor
RPS are made through the following sub-menus.
OFF
Maximum Compressor RPS Range for Cooling
Select the range that your maximum compressor RPS
falls within.
Maximum Compressor RPS Selection for Cooling
Within the selected range, choose the specific maximum
compressor RPS for the system configuration.
Heat Set-up
This menu allows for the adjustment of several heating
performance variables. Heat Airflow trim (range from -15%
OFF
to +15% in 3% increments), Heat Fan ON Delay, Heat Fan
OFF Delay and timed Defrost interval can be adjusted in this
menu. Time interval of 30, 60, 90 and 120 minutes between
two defrost cycles can be set to suit the weather conditions
and performance of the unit.
Heat Run Values
Similar to cooling mode, the maximum compressor speed
RPS (revolutions per second) can be adjusted for heating
mode under this menu.
Maximum Compressor RPS Range for Heating
Select the range that your maximum compressor RPS
falls within.
Maximum Compressor RPS Selection for Heating
Within the selected range, choose the specific maximum
compressor RPS for the system configuration.
See service manual for more detailed information.
43
100% CFM
Profile D has a 1/2 minute at 50% airflow
Airflow Tables
OFF
OFF