34
6.5 COOLING AIRFLOW SETTINGS (BY TONNAGE) (-)H2V
The (-)H2V-series of air handlers automatically set cooling airflow when using the
Comfort Control
2
. The air handler detects the tonnage of the condensing unit/heat pump
and sets airflow for optimum performance and comfort. Refer to Table 1 for the airflow
provided when the (-)H2V air handler is matched to the RARL/RASL condensing units.
6.6 COOLING AIRFLOW ADJUSTMENT (-)H2V
The Comfort Control
2
does allow the installer to tweak the cooling airflow +/-10% to suit
the installation. When using the Comfort Control
2
System™, the airflow can only be
adjusted using the Comfort Control
2
thermostat or a service tool. To adjust the airflow,
go to the airflow adjustment menu and select the desired adjustment. (Refer to Table 2).
IMPORTANT: Cooling airflow adjustment is accessible via the Comfort Control
2
ther-
mostat or via a service tool. Refer to their instructions to access the cooling airflow
adjustment menu.
NOTE: Cooling airflow adjustments are in effect for cooling operation only. They are
ignored when in heating mode or when electric heat is activated.
6.7 ELECTRIC HEAT AIRFLOW (-)H2V
The H2V-series of air handlers are factory programmed to provide adequate airflow for
the maximum electric heat (auxiliary heat) allowed for a given model. Airflow adjustment
for lower KW heater applications is accessible via the Comfort Control
2
System thermo-
stat or via a service tool. Refer to their instructions to access the “Heating Airflow
Adjustment” menu.
TABLE 7
RHPN AIRFLOW WHEN MATCHED TO THE (-)ASL CONDENSING UNITS (-)H2V
RHPN AIRFLOW WHEN MATCHED TO THE (-)ARL CONDENSING UNITS
TABLE 8
AIRFLOW ADJUSTMENT SELECTION TABLE (-)H2V
Airflow (cfm)
Condensing Unit
M
odel
2
nd Stage 1st Stage
(-)ASL-025 775 600
(
-)ASL-037 1175 950
(-)ASL-039 1175 825
(-)ASL-048 1600 1000
(-)ASL-060 1700 1050
Airflow (cfm)
Condensing Unit
Model
2nd Stage
1st Stage
(-)ARL-025 775 600
(-)ARL-038 1175 950
(-)ARL-049 1600 1200
(-)ARL-061 1700 1275
Selection
None
+10%
–10%
TABLE 9
ELECTRIC HEAT AIRFLOW FOR THE RHPN AIR HANDLERS (-)H2V
Air Handler
Model
Above
15KW:
15KW and
below:
RH2V2421HTACJA00 800 CFM 600 CFM
RH2V3624HTACJA00 1200 CFM 600 CFM
RH2V4824HTACJA00 1600 CFM 800 CFM
RH2V6024HTACJA00 1800 CFM 800 CFM
CONVENTIONAL THERMOSTAT WIRING