Condensate Trap - International comfort products B Series Installation Instructions Manual

INSTALLATION INSTRUCTIONS
Table 4 Minimum Space Volumes for 100% Combustion, Ventilation and Dilution Air from Outdoors
OTHER THAN FAN-ASSISTED TOTAL
(1,000'S BTUH GAS INPUT RATE)
30
ACH
1,050
0.60
(29.7)
1,260
0.50
(35.6)
1,575
0.40
(44.5)
2,100
0.30
(59.4)
3,150
0.20
(89.1) (118.9)
6,300
0.10
(178.0) (237.8)
0.00 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
tubing. Refer to Figure 8 for upflow condensate trap
information. Refer to Condensate Drain section for information
how to install the condensate drain.
Condensate Trap − Downflow
Orientation
When the furnace is installed in the downflow position, the
condensate trap will be initially located at the upper left corner
of the collector box, as received from the factory. See the top
Figure 8 Upflow Trap Configuration
Collector Box
Plugs
12
40 50
1,400 1,750 1,400
(39.6) (49.5) (39.6)
1,680 2,100 1,680
(47.5) (59.4) (47.5)
2,100 2,625 2,100
(59.4) (74.3) (59.4)
2,800 3,500 2,800
(79.2) (99.1) (79.2)
4,200 5,250 4,200
(148.6) (118.9)
8,400 10,500 8,400
(297.3) (237.8)
NP NP
Condensate Trap
Relief Port
UPFLOW TRAP CONFIGURATION
Representative drawing only, some models may vary in appearance.
Specifications subject to change without notice.
FAN-ASSISTED TOTAL
(1,000'S BTUH GAS INPUT RATE)
40 60 80
3 3
Space Volume Ft (M )
1,500 2,000
(42.5) (56.6)
1,800 2,400
(51.0) (67.9)
2,250 3,000
(63.7) (84.9)
3,000 4,000
(84.9) (113.2)
4,500 6,000
(127.3) (169.8)
9,000 12,000
(254.6) (339.5)
NP NP NP
image in Figure 9. When the furnace is installed in the
downflow orientation, the condensate trap must be relocated
for proper condensate drainage. See the bottom image in
Figure 9.
To Relocate the Condensate Trap:
S
Orient the furnace in the downflow position.
S
Figure 9 shows the condensate trap and tubing before and
after relocation. Refer to Figure 9 to begin the trap conversion.
S
Refer to Condensate Drain section for information how to install
the condensate drain.
Vent Pipe Clamp
Pressure Switch
Port
1 & 2 Stage Units
Gas Furnace: N9MSB
100 120 140
2,500 3,000 3,500
(70.8) (84.9) (99.1)
3,000 3,600 4,200
(84.9) (101.9) (118.9)
3,750 4,500 5,250
(106.1) (127.3) (148.6)
5,000 6,000 7,000
(141.5) (169.8) (198.1)
7,500 9,000 10,500
(212.2) (254.6) (297.1)
15,000 18,000 21,000
(424.4) (509.2) (594.1)
NP NP NP
Vent Elbow Clamp
Vent Elbow
Collector Box
Plug
Condensate Trap
Relief Port
Condensate Trap
Outlet
A11307
440 01 4102 01