507651-01
Page 20 of 32
Issue 1907
Figure 21.
Horizontal Applications Possible Gas Piping Configurations
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT-OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT-OFF
VALVE
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT-OFF
VALVE
Horizontal Application
Left-Side Air Discharge
Horizontal Application
Right-Side Air Discharge
FIELD
PROVIDED
AND INSTALLED
NOTE:
BLACK IRON PIPE
ONLY
TO BE ROUTED INSIDE OF CABINET
FIELD
PROVIDED
AND INSTALLED
Left Side Piping
(Standard)
Right Side Piping
(Alternate)
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT-OFF
VALVE
AUTOMATIC
GAS VALVE
(with manual
shut-off valve)
GROUND
JOINT
UNION
DRIP LEG
MANUAL
MAIN SHUT-OFF
VALVE
AUTOMATIC
GAS VALVE
(with manual
shut-off valve)
NOTE:
BLACK IRON PIPE
ONLY
TO BE ROUTED INSIDE OF CABINET
Figure 19.
Electrical
ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
Electrostatic discharge can affect
electronic
components.
Take
precautions to neutralize electrostatic
charge by touching your hand and tools
to metal prior to handling the control.
CAUTION
The unit is equipped with a field make-up box on the left
hand side of the cabinet. The make-up box may be moved
to the right side of the furnace to facilitate installation. If
the make-up box is moved to the right side, clip the wire
ties that bundle the wires together. The excess wire must
be pulled into the blower compartment. Secure the excess
wire to the existing harness to protect it from damage.
Fire Hazard. Use of aluminum wire with this product
may result in a fire, causing property damage, severe
injury or death. Use copper wire only with this product.
WARNING
Refer to Figure 22 or Figure 23 for wiring diagram and
troubleshooting.
The power supply wiring must meet Class I restrictions.
Protected by either a fuse or circuit breaker, select circuit
protection and wire size according to unit nameplate.
