20
13. Use two silver clamps and secure the hoses to drain
trap. The trap outlet faces the front of the furnace.
Secure the trap to the cabinet using two screws
removed in step 2 by inserting the two screws through
the large set of holes in the top mounting tabs of the
trap into the two pre-drilled holes in the side of the
cabinet.
14.
Refer to Field Supplied Drain section for instructions
on field supplied/installed drain on outlet of furnace
trap.
Insert flange. Cut 2 ½” long
.
RF000142
2 ½”
Figure 28
Horizontal Installation with Left Side Down -
Alternate
*See Front Cover Pressure Switch Tube Location on Figure
27.
1.
Draining the RF000142 Coupling: Locate hose #2
(factory installed). Cut off and discard the 45° radius
end.
2. Install 90°radius end of hose #2 on RF000142 drain
outlet and secure with a red clamp.
3. Insert coupling in hose #2 and secure with a red
clamp.
4. Locate hose #5 and cut 3” from the non-grommet end.
Discard the section without the grommet.
5. Insert the cut end of tube #5 through the lower cabinet
drain hole.
6. Insert 100° elbow in the cut end of hose #5.
7. Locate hose #6. Using red clamps, connect between
the coupling and 100° elbow, cutting off excess
tubing.
8.
Draining the Collector Box: Remove cap from left
side collector box drain port (bottom in horizontal left
position) and install it on right side (top) collector box
drain port and secure with a red clamp.
9. Install the non-grommet end of hose #11 from outside
the cabinet in the upper drain hole. Install on collector
box and secure with a silver clamp.
10. Use two silver clamps and secure the hoses to drain
trap. The trap outlet faces the front of the furnace.
Secure the trap to the cabinet using two screws
removed in step 2 by inserting the two screws through
the large set of holes in the top mounting tabs of the
trap.
ELECTRICAL CONNECTIONS
WARNING
Edges of sheet metal holes may be sharp. Use gloves as a
precaution when removing hole plugs.
Wiring Harness
The wiring harness is an integral part of this furnace.
Wires are color coded for identification purposes. Refer to
the wiring diagram for wire routings. If any of the original
wire as supplied with the furnace must be replaced, it must
be replaced with wiring material having a temperature
rating of at least 105°C. Any replacement wiring must be a
copper conductor.
115 Volt Line Connections
Before proceeding with electrical connections, ensure
that the supply voltage, frequency, and phase correspond
to that specified on the unit rating plate. Power supply to
the furnace must be NEC Class 1, and must comply with
all applicable codes. The furnace must be electrically
grounded in accordance with local codes or, in their
absence, with the latest edition of The National Electric
Code, ANSI NFPA 70.
Use a separate fused branch electrical circuit containing
properly sized wire, and fuse or circuit breaker. The fuse
or circuit breaker must be sized in accordance with the
maximum overcurrent protection specified on the unit
rating plate. An electrical disconnect must be provided at
the furnace location.
Connect hot, neutral, and ground wires as shown in the
wiring diagram located on the unit’s blower door. Metal
conduit is not considered a substitute for an actual ground
wire to the unit. For direct vent applications, the cabinet
opening to the junction box must be sealed air tight using
either an UL approved bushing such as Heyco Liquid
Tight or by applying non-reactive UL approved sealant to
bushing.
Line polarity must be observed when making field
connections. Line voltage connections can be made
through either the right or left side panel. The furnace is
shipped configured for a left side electrical connection with
the junction box located inside the burner compartment. To
make electrical connections through the opposite side of
the furnace, the junction box must be relocated to the other
side of the burner compartment prior to making electrical
connections. To relocate the junction box, follow the steps
shown in the Junction Box Relocation section.
