International comfort products B Series Installation Instructions Manual page 13

INSTALLATION INSTRUCTIONS
Figure 9 Unconverted Factory Configuration as viewed in the Downflow Orientation
Remove relief tube from relief
port on condensate trap.
Remove the screw
that secures the trap
to the collector box and
remove trap.
Loosen clamp on inlet
to vent elbow.
Install the two plugs
previously removed
on the open ports
of the collector box.
Connect relief tube
to port on collector
box.
Rotate elbow to
desired position and
tighten clamp to
15 lb.−in.
Slide tube in stand−offs
4
to adjust length.
440 01 4102 01
Remove pressure switch tube from
front pressure switch and discard. A
new tube is shipped in the loose parts
bag.
Representative drawing only, some models may vary in appearance.
Downflow Trap Configuration
Connect the new pressure switch
tube from Loose Parts bag to
port on front pressure switch.
Representative drawing only, some models may vary in appearance.
Specifications subject to change without notice.
Gas Furnace: N9MSB
Remove tube from relief port.
Remove middle and bottom
plugs. DO NOT DISCARD.
Route tube through inducer
stand−offs to adjust position
of the tube.
Trim excess tube.
Connect pressure switch
tube to port on collector
box.
Attach condensate trap
with screw to collector box.
Connect relief tube to
5
relief port on condensate
trap.
Align condensate trap
over middle and bottom
ports of collector box.
A11587LA
A11587LB
13