Table 4 Minimum Space Volumes for 100% Combustion, Ventilation and Dilution Air from Outdoors
OTHER THAN FAN-ASSISTEDTOTAL FAN-ASSISTEDTOTAL
(1,000'S BTUH GAS INPUT RATE) (1,000'S BTUH GAS INPUT RATE)
30 40 50 40 60 80 1O0 120 140
AOH Space Volume Ft3 (M3)
1,050 1,400 1,750 1,400 1,500 2,000 2,500 3,000 3,500
0.60 (29.7) (39.6) (49.5) (39.6) (42.5) (56.6) (70.8) (84.9) (99.1)
1,260 1,680 2,1 O0 1,680 1,800 2,400 3,000 3,600 4,200
0.50 (35.6) (47.5) (59.4) (47.5) (51.0) (67.9) (84.9) (101.9) (118.9)
1,575 2,1 O0 2,625 2,1 O0 2,250 3,000 3,750 4,500 5,250
0.40 (44.5) (59.4) (74.3) (59.4) (63.7) (84.9) (106.1 ) (127.3) (148.6)
2,1 O0 2,800 3,500 2,800 3,000 4,000 5,000 6,000 7,000
0.30 (59.4) (79.2) (99.1) (79.2) (84.9) (113.2) (141.5) (169.8) (198.1 )
3,150 4,200 5,250 4,200 4,500 6,000 7,500 9,000 10,500
0.20 (89.1) (118.9) (148.6) (118.9) (127.3) (169.8) (212.2) (254.6) (297.1)
6,300 8,400 10,500 8,400 9,000 12,000 15,000 18,000 21,000
0,10 (178.0) (237.8) (297.3) (237.8) (254.6) (339.5) (424.4) (509.2) (594.1)
0,00 NP NP NP NP NP NP NP NP NP
NP = Not Permitted
CONDENSATE TRAP
Condensate Trap - Upflow Orientation
When the furnace is installed in the upflow position, it is not
necessary to relocate the condensate trap or associated
Figure 8 1Upflow Trap Configuration
Condensate Trap
Relief Port
tubing. Refer to Figure8 for upflow condensate trap
information. Refer to Condensate Drain section for information
how to install the condensate drain.
Vent Pipe Clamp
Vent Elbow Clamp
Collector Box
Plugs
Vent Elbow
Collector Box
Plug
Condensate Trap
Relief Port
Pressure Switch
Port
P
Outlet
UPFLOW TRAP CONFIGURATION
1 & 2 Stage Units
Al1307
Condensate Trap - Downflow
Orientation
When the furnace is installed in the downflow position, the
factory-installed trap will be located at the upper left corner of
the collector box. When the furnace is installed in the downflow
orientation, the factory-installed trap must be relocated for
proper condensate drainage.
To Relocate the Condensate Trap:
1. Orient the furnace in the desired position.
2. Figure 9 shows the condensate trap and tubing before
and after relocation.
3. Remove the relief tube from the condensate trap.
4. Remove the screw that secures the condensate trap to
the collector box.
5. Remove the trap.
6. Remove the relief tube from of the port on the collector
box. It is not necessary to remove the tube from the
inducer assembly.
7. Remove the pressure switch tube from the front pressure
switch and discard the tube. A new pressure switch tube
is shipped in the loose parts bag.
8. Loosen the clamp around the inlet of the vent elbow on
the inducer.
9. Remove the middle and bottom plugs from the lower
right side of the collector box and set aside. Do Not
Discard Plugs,
10. Refer to the appropriate figure to begin the trap
conversion.
11. Install the two (2) plugs previously removed from the
collector box in the ports where the condensate trap was
removed.
12 Specificati ..... bject to change without notice. 440 01 4001 02
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