Converting Downflow/Horizontal Models To Horizontal Configuration - Rheem RGFE Installation Instructions Manual

CONVERTING DOWNFLOW/HORIZONTAL (RGGE WITH HB
FUEL CODE ONLY) MODELS TO HORIZONTAL CONFIGU-
See additional instructions
on page 38 for instruc-
tions on installing the trap
for dedicated horizontal
models (RGJF only)
CONDENSATE DRAIN
FOR HORIZONTAL
INSTALLATION
NOTE: Only RGGE models with HB
fuel codes can be installed in the hori-
zontal configuration. All other fuel gas
codes must be installed as dedicated
downflow configuration only.
Refer to Figure 36 for Steps 1-5.
1. This unit is shipped factory ready
for downflow installation. The con-
densate trap assembly and drain
hoses require conversion for hori-
zontal installation. Remove the
existing condensate trap with the
unit in the upright position.
IMPORTANT: This furnace may
only be installed so that when fac-
ing the front of the furnace, supply
air is discharged on the left hand
side.
2. Remove the burner compartment
door from the unit.
3. Remove the two screws from the
right side of the furnace jacket
which support the trap mounting
bracket . Remove the two plas-
tic plugs on either side of the trap
outlet hole and discard.
4. Remove the (L-shaped) clear
vinyl drain tube Ž from the top of
the existing trap Œ.
Do not disconnect the short end
from the furnace collector box.
5. Remove the ribbed drain tube 
from the existing trap Πand the
exhaust transition . Discard this
tube. Retain the clamps for future
use. Additional clamps are provid-
ed in the parts bag if any clamps
are damaged during conversion
process.
NOTE: The following steps should
take place with the furnace in the hori-
zontal position.
Refer to Figure 37 for Steps 6-11.
6. Locate the parts bag in the burner
compartment. Install two plastic
plugs ‘ in the side of the jacket
from bottom side up.
36
7. Fill the trap assembly ’ with 1/2
cup of water.
8. Attach the gasket “ onto the trap
assembly so that the gasket holes
on the gasket line up with the
holes on the trap assembly.
9. Insert the trap assembly with gas-
ket up through the existing hole in
the jacket and secure from inside
the jacket. Use two screws pro-
vided. Screw down into the two
"ears" molded into either side of
the trap. Snug the trap assembly
against the furnace jacket com-
pressing the gasket slightly to
eliminate any air leaks. Do not
overtighten!
10. Attach the black molded rubber
90° elbow ” to the straight spout
on the trap top using a black
nylon clamp •. Attach the other
end of the rubber elbow to the
spout located on the exhaust
— 11
transition  using a black nylon
clamp.
11. Attach the end of the ribbed tube
Ž to the 45° elbow molded into
the top of the trap assembly using
a black nylon clamp.
FIGURE 35
HORIZONTAL CONDENSATE DRAIN
(GAS VALVE, MANIFOLD AND PRESSURE
SWITCHES MAY BE DIFFERENT THAN
SHOWN)
IMPORTANT: Tighten all clamp
connections with a pair of pliers
and check for leaks after conver-
sion is complete.
12. IMPORTANT: There are two
options when choosing a height
for the condensate riser:
CONDENSATE OVERFLOW:
With a 1 3 ⁄ inch riser installed
4
above the tee, a blocked drain
will result in overflow from the
riser.
FURNACE SHUTDOWN: To
cause the furnace to shut down
when a blocked drain is present,
install a riser which is a minimum
of 5 1 ⁄ ". If the furnace is installed
2
in an attic, crawlspace or other
area where freezing tempera-
tures may occur, the furnace
drain can freeze while shut off
for long periods of time.
Use a solvent cement that is
compatible with PVC material.
ST-A1128-01