Payne PG9MAB Series A Installation Manual page 11

2. Remove trap from blower shelf by gently pushing tabs inward and rotating trap.
3. Install casing hole filler cap (factory-supplied in loose parts bag) into blower shelf hole where trap was removed.
WARNING: CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or death.
Casing hole filler cap must be installed in blower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room.
4. Install condensate trap into left-hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap
into locking position.
5. Fill unused condensate trap casing holes with plastic filler caps (factory-supplied in loose parts bag).
B. Condensate Trap Tubing
NOTE: See Fig. 8 or 9 or tube routing label on main furnace door to check for proper connections.
1. Collector Box Drain Tube
a. Remove factory-installed plug from LOWER collector box drain tube (blue and white striped label).
b. Install removed clamp and plug into UPPER collector box drain tube (blue label) which was connected to condensate trap.
c. Connect LOWER collector box drain connection to condensate trap.
Condensate Trap Located on Left Side of Casing
(1.) Connect LOWER collector box drain tube (blue and white striped label) to condensate trap. Tube does not need to be cut.
(2.) Clamp tube to prevent any condensate leakage.
Condensate Trap Located on Right Side of Casing
(1.) Install drain tube coupling (factory-supplied in loose parts bag) into collector box drain tube (blue and white striped label) which
was previously plugged.
(2.) Connect larger diameter drain tube (factory-supplied in loose parts bag) to drain tube coupling, extending collector box drain tube
for connection to condensate trap.
(3.) Route extended collector box drain tube directly from collector box drain to condensate trap as shown in Fig. 9.
(4.) Determine appropriate length and cut.
(5.) Connect to condensate trap.
(6.) Clamp tube to prevent any condensate leakage.
2. Inducer Housing Drain Tube
a. Remove factory-installed cap and clamp from LOWER inducer housing drain connection.
b. Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to condensate trap.
c. Install cap and clamp on UPPER inducer housing drain connection where molded drain tube was removed.
d. Use inducer housing drain tube (violet label and factory-supplied in loose parts bag) to connect LOWER inducer housing drain
connection to the condensate trap.
e. Connect inducer housing drain connection to condensate trap.
Condensate Trap Located on Left Side of Casing
(1.) Determine appropriate length and cut.
(2.) Connect tube to condensate trap.
(3.) Clamp tube to prevent any condensate leakage.
Condensate Trap Located on Right Side of Casing
(1.) Route inducer housing drain tube (violet label) directly from inducer housing to condensate trap as shown in Fig. 9.
(2.) Determine appropriate length and cut.
(3.) Connect tube to condensate trap.
(4.) Clamp tube to prevent any condensate leakage.
3. Relief Port Tube
Refer to Pressure Switch Tubing section for connection procedure.
C. Condensate Trap Field Drain Attachment
Refer to Condensate Drain section for recommendations and procedures.
D. Pressure Switch Tubing
One collector box pressure tube (pink label) is factory connected to the pressure switch for use when furnace is installed in UPFLOW applications.
This tube MUST be disconnected and used for the condensate trap relief port tube. The other collector box pressure tube (green label) which was
factory connected to the condensate trap relief port connection MUST be connected to the pressure switch in DOWNFLOW or HORIZONTAL
RIGHT applications.
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