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corresponding pressure tap on the oppo-
site of the header box.
5. Place the gray tubing that was removed,
to the corresponding pressure tap on the
right side of the header box. ( Refer to
Figure 3)
6. If field supplied parts are used, discon-
nect both soft tubes from the hard "J" tube
drain trap after loosing 7/8" clamps.
Shorten long side of the "J" trap by 8-1/2".
7. Feed the 10" piece of soft tubing through
the round hole located in the right side of
the cabinet wrapper Note: A downward
slope must be maintained on the tube as
it is routed through the furnace (when the
furnace is in the horizontal position).
8. Assemble the 10" piece of soft tube to 5"
tall end of the hard (J) tube to the end of
the 10" soft tube located outside of the
furnace. Secure the connection using
one of the clamps that was removed, from
the "J" trap. Secure the connection with
the 7/8" hose clamp.
9. Reassemble the 30" piece of soft tubing
removed from the factory installed "J"
tube drain trap to the 2' tall end of the
modified "J" tube drain trap.
Note: Ensure the clamps in step 7 and 8 are
securely tightened in order to avoid any con-
densate leakage.
Note: PVC "T" drain assembly must be in-
stalled so that condensate does not get into the
induced draft blower.( refer to Figure 3).
5/8" Vinyl Cap
Pressure Switch
Figure 3. 90+ Upflow Converted for Horizontal Installation (Horizontal Right)
Alternative
for
Horizontal
Vent
PVC Tee
Reducer
Bushing
Soft Tubing
Looped to Provide
a Drain Trap
Figure 4. 90+ Upflow Converted for Horizontal Installation (Horizontal Left)
Note: To avoid condensate freezing in the
drain trap assembly and tubing, insulate around
the drain trap assembly and all tubing located
in unconditioned space.
Conversion of the *TC Upflow Furnace for
a Horizontal Left Installation.
Refer to Figure 4.
NOTE: To avoid condensate freezing in the
drain trap assembly and tubing, insulate around
the drain trap assembly and all tubing located in
unconditioned space. See note in Figure 4.
1/4" Vinyl Cap
1/2" Vinyl
Cap
Drain Trap
3" to 2"
Reducer
Pressure Switch
Drainage Port
(Optional)
(Condensate)
is Downard
Soft Tubing
Grey
Soft
Tubing
Tubing
Drain Trap
1. Remove the hard "J" tube drain trap as-
sembly.
2. If field supplied parts are used, discon-
nect both soft tubes from the hard "J" tube
drain trap after loosing 7/8" clamps.
Shorten long side of the "J" trap by 8-1/2".
3. Feed the 10" piece of soft tubing through
the round hole located in the left side of the
cabinet wrapper. Note: A downward slope
must be maintained on the tube as it is
routed through the furnace (when the
furnace is in the horizontal position).
4. Assemble the 5" tall end of the hard "J"
tube to the end of the 10" soft tube located
outside of the furnace. Secure the con-
nection using one of the 7/8" hose clamps
that were removed from the "J" trap.
5. Assemble the 30" piece of soft tubing that
was removed from the "J" trap o the 2" tall
end of the modified "J" drain trap. Secure
the connection with the 7/8" hose clamp.
Grey
Tubing
3" to 2"
Reducer
(Optional)
PVC Tee
PVC Reducer
Bushing
Soft Tubing
Looped to Provide
Soft
Tubing
a Drain Trap
NOTE: When converting
Vinyl Cap
the furnace, to horizontal
Pressure
Switch
left, ensure that the drain-
age port on the in-line
drain assembly is down-
ward as shown in this fig-
ure. If the in-line drain as-
sembly is not rotated, then
the furnace may not drain
1/4" Vinyl Cap
properly.
9
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