Carrier 58PAV - Manual (Page 10)

Table 11—Dedicated Type B-1 Vent For
58PAV125-LC Maximum
Horizontal Length Allowed (Ft)
Table 12—Common Venting Of Furnaces
(Typicai instaliation)
Height Number of 90° Elbows Vent
Pipe 0 1 2 3 4 5
5 NA NA NA NA NA NA
5-IN.
DIAMETER
10 0 10 10 NA NA NA
15 0 15 15 15 15 15
20 0 20 20 20 20 20
25 0 25 25 25 25 25
30 0 30 30 30 30 30
5 0 5 5 5 NA NA
6-IN.
DIAMETER
10 0 10 10 10 10 10
15 0 15 15 15 15 15
20 0 20 20 20 20 20
25 0 25 25 25 25 25
30 0 30 30 30 30 30
NA—Not allowed. Condensation
could occur.
or positive pressure in vent system
C. Venting Tables For Common Vented Furnaces (two,
three, or four 58PAV Furnaces)
The following information refers to installations where two,
three, or four 58PAV Furnaces are common vented into a
single vent system. Do not connect more than four 58PAV
Furnaces into a common vent system. See Fig. 12. Table 12
data is for a vent system where all the furnaces are the same
size. For common vent apphcations using various sizes of
58PAV Furnaces, contact your Distributor or Dealer for
more information.
To determine the proper common vent size, total the heat
input of all the apphemces to be connected to the vent sys­
tem, next select the smallest vent size which wUl meet that
rated input.
NOTE: A listed single-wall to T3?pe B-1 vent adaptor is
required to connect single-wall vent connectors to the com­
mon vent.
1. Vent connectors should be as short and direct as possi­
ble, and should be made of Type B-1 double-wall vent
pipe or insulated single-wall vent pipe.
2. Vent connectors shall be sized using dedicated venting
table in Section B of this publication. The length of hor­
izontal run used in the vent connector and vent must
never exceed the height of the common vent.
FURNACE A89018
58PAV
Size
Number
of
Furnaces
Common Vent Height (Ft)
Vent
Dia
(Ins.) Minimum Maximum*
035-EC
or
035-GC
2 8 40 5
6 40 6
3 14 40 5
8 40 6
4 14 40 6
8 40 7
055-EC
or
055-GC
2 14 40 5
8 40 6
3 14 40 6
8 40 7
4 14 40 7
10 40 8
075-GC
or
075-JC
2 10 40 6
8 40 7
3 14 40 7
8 40 8
4 14 40 8
10 40 9
090-GC,
090-JC,
or
090-LC
2 14 40 6
10 40 7
3 10 40 8
8 40 9
4 10 40 9
10 40 10
110-JC
or
110-LC
2 14 40 7
8 40 8
3 10 40 9
8 40 10
4 16 40 9
10 40 10
125-LC 2 10 40 7
6 40. 8
6 40 9
3 14 40 8
8 40 9
8 40 10
4 18 40 8
14 40 9
10 40 10
*For applications requiring
tion other than specified,
information.
vent heights greater than 40 ft, or
contact your Distributor or Dealer combina-
for more
apart
Fig. 12—Common Venting Of Furnaces
(Typicai installation)
3. Vent connectors should be spaced at least 1 ft
when entering the common vent system.
4. Insulated vent connectors may be required for certain
applications. See Sections A.5. and A.6. for additional
information.
5. For multi-story installation, refer to Appendix G of
National Fuel Gas Code or Canadian standards CAN/
CGA.B149 for additional information in sizing the com­
mon vent. Individual vent connectors should be sized
per the dedicated appliemce tables shown in Section B.
D. Venting Tables For Common Vents (One 58PAV
Furnace and Gas Hot Water Heater)
The information in this section refers to the installation of a
common vent serving a 58PAV Furnace and a gas hot water
heater. Tables 13 and 14 use typical hot water heater input
rates of 40,000 Btuh or 50,000 Btuh. Refer to the water
heater rating plate for input ratings of the installed
equipment.
1. Size common vent and vent connector lengths using
Tables 13 and 14.
2. Vent connectors should be as short and direct as
possible.
3. Size gas water heater vent connector per National Fuel
10