Other Accessories Available; Rxgw-B01 Chimney Adapter; Typical Wiring For Select Accessories For Communicating Residential Systems - Rheem RGPE series Installation Instructions Manual

B2. WITH NON-COMMUNICATING
THERMOSTAT (REQUIRES
OPTIONAL HUMIDISTAT).
Control of dehumidification only
(no humidification) can be
accomplished by installing an
optional humidistat as shown in
Figure 22 (IV). The dipswitch
SW2-1 must be set to the "ON"
position. If this switch is not
turned "ON", dehumidification
operation will not take place.
Further, if this switch is "ON"
and no humidistat is installed,
airflow in cooling will be perma-
nently reduced by approximate-
ly 15%.
C. HUMIDIFICATION AND DEHUMIFI-
CATION CONTROL
(REQUIRES OPTIONAL HUMIDIFI-
ER).
C1. WITH COMMUNICATING
THERMOSTAT
Humidifier control is included
with the (-)HC-TST412MDMS
(modulating, non-communicat-
ing) and (-)HC-TST550CMMS
(full-color communicating)
model thermostats. However, it
is not included with the (-)HC-
TST501CMMS model commu-
nicating thermostat. Do not
purchase the latter thermostat if
humidification control is
required. To wire the furnace
for humidification and dehumidi-
fication control using the former
thermostat, refer to the wiring
diagram in Figure 19 (I). Be
sure not to install the jumper
between "R" and "HUM STAT"
on the furnace control.
Installing this jumper will oper-
ate the humidifier any time
THERMOSTAT AND ACCESSORIES FOR THERMOSTAT
Programmable Communicating:
(-)HC-TST501CMMS
Full-Color, Programmable Communicating:
(-)HC-TST550CMMS
Remote Sensor:
(For Thermostats Above Only)
F1451378
Thermostat Wall Plate For Thermostat HC-TST501CMMS
Above Only:
F61-2600
there is a heat call and dehu-
midification will never take
place when in cooling. Without
the jumper, a humidification call
from the thermostat must be
active and a heat call must be
present with the blower running
for the "HUM OUT" relay con-
tacts to close.
C2. WITH NON-COMMUNICATING
THERMOSTAT (REQUIRES
OPTIONAL HUMIDISTAT.)
For non-communicating ther-
mostats, an optional humidistat
must be installed. Controlled
humidification and dehumidifi-
cation can be accomplished
using a humidistat as shown in
Figures 20 (II) or 21 (III).
These figures show installation
of a humidifier with external and
internal power supplies respec-
tively. Dehumidification opera-
tion will be disabled if the dip-
switch SW2-1 is in the "OFF"
position. If this switch is in the
"ON" position, dehumidification
control will be active.
OTHER ACCESSORIES
AVAILABLE
FOSSIL FUEL KIT (non-communicat-
ing systems only)
Use of a heat pump with the two stage
furnace requires a heat pump thermostat
used in conjunction with the fossil fuel
kit. For proper operation use the follow-
ing procedures:
a. With the RXPF-F01 kit, connect the
thermostat "E" terminal, one side of
the plenum switch, and the black wire
from the fossil fuel kit to "W2" on the
IFC.
b. For the RXPF-F02 kit, connect
"W" on the fossil fuel kit interface
wiring board to "W2" on the IFC.
Regardless of which fossil fuel kit is
used, when activated, the two stage
furnace follows the sequence of
operation for a single stage thermo-
stat.
­ IMPORTANT: ALWAYS FOLLOW
THE MANUFACTURER'S FOSSIL
FUEL KIT INSTRUCTIONS.
TWINNING: Most installations of
(-)GPE and (-)GLE furnaces cannot
be twinned. However, a few excep-
tions exist for installations with some
commercial evaporator coils. Consult
the installation instructions of the coil
to see if the furnace can be twinned.
If so, a twinning kit will be required
and the part number for the kit can
be found in the installation instruc-
tions for the coil.
RXGW-B01 CHIMNEY
ADAPTER
IMPORTANT: Chimney adapter is
certified for use on upflow only.
This appliance is CSA certified for
use with RXGW-B01 chimney
adapter. Refer to kit installation
instructions
92-101682-01.
TYPICAL WIRING FOR
SELECT ACCESSORIES
FOR COMMUNICATING
RESIDENTIAL SYSTEMS
The Rheem Serial Communicating
(CC2) system allows accessories to
be connected to shut down the sys-
tem in the event of a fault. Typical
devices that can be connected are
the drain overflow switch, smoke
detector and freeze protection
switch. There are two methods of
connecting the switch to the system
depending on the device configura-
tion normally closed or normally
open. The blower can run during a
fault or the blower can shut off dur-
ing a fault depending on how the
system is connected. Please refer to
local and/or state codes for installing
these devices. The following opera-
tion applies only when BOTH the
condenser and thermostat are serial
communicating devices. If the con-
denser is non-communicating (tradi-
tional, legacy 24VAC controlled) this
diagram is not valid.
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