Dual-Fuel Operation - Rheem RGFG Installation Instructions Manual

100 PRCNT TEST – (SW2-2 = OFF
and SW2-3 = ON) Represents the
mode of operation which will provide
100% heat rate for any heat call –
regardless of the rate transmitted by
the thermostat. This mode ends
automatically after the first 60 min-
utes of operation after power-up.
9. AC HP STG MULT – This allows for
adjustment to the airflow for low-
stage of cooling and heat-pump
operation. See the section of this
manual titled "DIPSWITCH" under
"SW2" (SW2-4) for details and
selections.
DUAL-FUEL OPERATION IN COMMU-
NICATING MODE
Systems configured for dual-fuel opera-
tion will include a communicating con-
denser with a reversing valve. Dual-
fuel systems will display "HP" for Heat-
Pump heat operation at the furnace
control's (I.F.C.) dual seven-segment
displays. During defrost mode, "dF" will
be displayed. All other codes apply.
The balance point can be adjusted at
the thermostat for optimal operation.
The balance point is the point below
which gas heat will be used and above
which heat-pump heat will be used.
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