Dipswitches - Rheem RGFG Installation Instructions Manual

DIPSWITCHES

NOTE: The integrated furnace control
does not recognize switch setting
changes while energized.
S3
S3-1 AND S3-2 – COOLING AIRFLOW
SELECT – These dipswitches are used
to select the appropriate cooling airflow
based on the amount required. The
switch settings do not affect cooling air-
flow when installed with a fully commu-
nicating condenser. In that case, the
condenser supplies the information for
cooling airflow which is preset at the
factory and not adjustable.
For non-communicating systems or
communicating systems with a non-
communicating condenser (see section
titled SPECIAL CONFIGURATION –
COMMUNICATING THERMOSTAT
AND FURNACE WITH A NON-COM-
MUNICATING CONDENSER of this
document), the target cooling airflow will
be determined by the adjustments of
FIGURE 40
DIPSWITCH BANK S3
52
S3-1 and S3-2. Furnaces with ½ HP
motors will have a maximum target air-
flow setting of 1200 CFM. Furnace with
1 HP motors will have a maximum tar-
get airflow setting of 2000 CFM. The
airflow achieved may be less than the
target if the static pressure across the
furnace is over 0.6" wc. Consult the
cooling equipment instructions and doc-
uments for target airflow and adjust
accordingly.
Cooling airflow for non-communicating
systems can be adjusted approximately
+/- 10% by using the cool trim adjust-
ment dipswitches; S3-3 and S3-4. See
Figure 40.
Cooling airflow for non-communicating
systems is also affected by the settings
of dipswitch position S5-2. This switch
will determine the appropriate amount
of airflow to be used for the low stage
st
(1 stage) of cooling. See Table 17.
More information can be found in the
section titled S5 (S5-2).
Consult Figures 40, 41 and 42 and
Table 17 for target airflow settings
and adjustments based on the posi-
tions of the dipswitches S3-1, S3-2,
S3-3, S3-4 and S5-2.
S3-3 AND S3-4 – COOLING AND
HEAT-PUMP AIRFLOW ADJUST-
MENT – These dipswitches are
used to adjust the cooling and heat-
pump airflow for non-communicating
systems slightly based on the user's
preference.
S3-3 = "OFF", S3-4 = "OFF" – No
adjustment.
S3-3 = "ON", S3-4 = "OFF" – +10%
adjustment.
S3-3 = "OFF", S3-4 = "ON" – -10%
adjustment.
S3-3 = "OFF", S3-4 = "OFF" – No
adjustment.