35
HORIZONTAL INSTALLATIONS
RIGHT SIDE DOWN
Horizontal installations with the right side down require that the
drain hoses be connected to the right side front cover drain port
and the rubber elbow drain port.
NOTE: On counterflow models, relocation of the front cover
pressure switch hose is required.
Make connections as follows:
1. Remove the rubber plug/cap from right side of the front
cover drain port.
Counterflow furnaces
Relocate the front cover pressure switch hose connec-
tion from the left side pressure tap to the right (down)
side tap. The pressure switch hose must be connected
to the down side to guard against blocked drain condi-
tions. Cut hose to appropriate length to minimize sag-
ging. Plug left (unused) pressure tap with plug removed
from right side.
2. Secure Hose A to front cover drain tap with a red hose
clamp. Route hose to rear right (down) side panel grom-
met holes.
3. Cut 1/4 inch from the end of the drain port on the rubber
elbow and discard.
4. Insert Tube 1 into rubber elbow drain port and secure
with a silver hose clamp. Angle tube outward toward front
of furnace.
5. Cut 17 3/4 inches from the long end of Hose B and dis-
card.
6. Secure remaining end of Hose B to exposed end of Tube
1 with a green hose clamp. Route hose to front right
down side panel grommet holes.
7. Cut 5 1/2 inches straight length from the long end of
each Tube 2 and discard the radius pieces.
8. Insert approximately one inch of each Tube 2 through
the right down side panel grommet holes. Secure tubes
to Hose A and Hose B using green hose clamps. En-
sure hoses and tubes maintain a downward slope for
proper drainage and are not kinked or bound.
For details concerning mounting of the drain trap, refer to Con-
densate Drain Lines and Drain Trap - Horizontal Drain Trap Mount-
ing.
HOSE A
HOSE B
GREEN
HOSE
CLAMP
(3 PLACES)
TUBE 1
RUBBER
ELBOW
RIGHT
SIDE
PANEL
DRAIN TRAP
Allow 4-3/4”
minimum
for trap
TUBES 2
RUBBER ELBOW
DRAIN PORT
FRONT COVER
DRAIN PORT
FRONT
COVER
PRESSURE
TAP
RED HOSE
CLAMP
SILVER HOSE
CLAMP
Horizontal Connections - Right Side Down
(Upflow Shown, Counterflow Similar)
When using the horizontal alternate
vent configuration, you must use the
RF000142 vent drain kit.
OPERATION
VENT
NOTE:
MAKE SMALL
LOOP IN HOSE TO
SERVE AS “P-TRAP”
RF000142 KIT
FIELD SUPPLIED HOSE
AND CONNECTORS
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