Rheem RGFG Installation Instructions Manual page 54

FIGURE 41
DIPSWITCH BANK S4 TEST MODE SELECT
Switch (SW2-1) Call
ON COOL
ON COOL
ON Heat
ON Heat
OFF COOL
OFF COOL
OFF Heat
OFF Heat
1. Normal ignition sequence
2. A calibration cycle will be performed
unless the Test Switches are set for
Test 40%. The LED status indicator
will flash "H" or "h" during the cali -
bration cycle.
NOTE: The supply air sensor (field
installed) is required for the furnace cali-
bration cycle. If the air sensor is faulty,
or not properly connected, the fur nace
will not attempt a calibration cycle and
will operate on factory default parame-
ters pre-pro grammed into the micro-
processor.
After calibration, the furnace will then
adjust to the desired Test capacity. This
allows time for the technician to check
steady-state operation and evaluate fur-
nace performance.
The furnace will operate at the fixed
Test capacity until one of the following
conditions:
54
Voltage at "HUM" Action
24 Normal Cool (c or C)
0 Dehum Cool (cd or Cd)
24 Hum Contacts Closed.
0 Hum Contacts Open.
24 Normal Cool (c or C)
0 Normal Cool (c or C)
24 Hum Contacts Closed.
0 Hum Contacts Open.
A. The thermostat is satisfied and the
call for heat is removed.
B. The furnace has been in test mode
continuously for sixty minutes, at
which time the furnace control (IFC)
will exit the test mode and proceed
to normal heating operation as con-
figured. Test mode can not be acti-
vated again unless line voltage
power to the furnace is cycled off
and back on. This is true even if the
dipswitches remain configured to the
test settings.
To set the furnace for normal
oper ation:
1. Set the thermostat mode to OFF.
2. Switch the 115 volt power to the
3. Remove furnace blower door.
4. Position dipswitches S4-2 and
5. Replace furnace blower door.
6. Switch the 115 volt power to the
7. Set the thermostat as desired.
TABLE 18
SW2-2 AND SW2-3 MODE SELECTION SETTING
Switch S4-2
Mode
Modulating / Single-
Stage
Test 40%
Test 100%
Two Stage
Note: The "Test 40%" and "Test 100%" settings will time out
and become invalid one hour after power reset.
ST-A1164-01
Always allow furnace to complete
the cool down cycle.
furnace OFF. Do not change
set tings with control energized.
S4-3 for modulating/single-stage
mode or 2-stage mode.
furnace ON.
Switch S4-3
Position Position
OFF OFF
ON OFF
OFF ON
ON ON