29
Table L: Category I Vertical Venting
* Vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the NFGC for further details.
When vertical height exceeds 25 ft, consult factory prior to installation.
** Subtract 10 ft per elbow. Max. 3 elbows.
Maximum combustion air duct length terminated at 100 equivalent ft.
Manifolds that connect more than one heater to a com-
mon chimney must be sized to handle the combined
load. Consult available guides for proper sizing of the
manifold and the chimney. At no time should the area
of the common vent be less than the area of the largest
heater exhaust outlet.
Common venting systems may be too large once an
existing unit is removed. At the time of removal of an
existing appliance,
the following steps must be fol-
lowed
with each appliance remaining connected to the
common venting system placed in operation, while the
other appliances remaining connected to the common
venting system are not in operation.
A
WARNING:
Vent connectors serving applianc-
es vented by natural draft shall not be connected
into any portion of mechanical draft systems op-
erating under a positive pressure.
1. Seal any unused opening in the common venting
system.
2. Visually inspect the venting system for proper size
and horizontal pitch and verify there is no block-
age, restriction, leakage, corrosion or other unsafe
condition.
3. Insofar as is practical, close all building doors and
windows and all doors between the space in which
the appliances remaining connected to the com-
mon venting system are located and other spaces
of the building. Turn on clothes dryers and any ap-
pliance not connected to the common vent system.
Turn on any exhaust fans, such as range hoods
and bathroom exhausts, at maximum speed. Do
not operate summer exhaust fan. Close fireplace
dampers.
Model
No.
Certified
Venting
Material
Vent
Size
Vertical Venting
Height*
Combustion
Air
Intake Pipe
Material
Air Inlet Max. Length**
Min.
Max.
6”
8”
10”
12”
399B
Category I
(Type B
Equivalent)
6”
5’
25’
Galvanized
Steel,
PVC, ABS,
CPVC
100’
499B
75’
100’
649B
8”
40’
749B
899B
989B
10”
75’
100’
1259B
12”
1529B
1799B
14”
40’
75’
1999B
2069B
2339B
16”
A
CAUTION:
Vent connectors for natural draft
venting systems must be Type B or better.
Summary of Contents for Raypak Delta Limited 399B
Page 39: ...39 Wiring Diagram Models 399B 1259B...
Page 40: ...40 Wiring Diagram Models 1529B 2339B...
Page 51: ...51 DIAGNOSTIC DETAIL 12 J 7 J 6 J 5 J 3 0 2 0 16 S 1 F 2 F 3 F 4 F BLOWER DETAIL...
Page 53: ...53 13 J 8 J 10 J 11 J 4 J 2 J 3 J 6 C 14 J 9 J 1 J CONTROL BOX DETAILS...
Page 57: ...57 ILLUSTRATED PARTS LIST MODELS 989B 2339B 10 J 3 O 5 O...
Page 58: ...58 12 H 6 H 7 H 8 H 2 H 9 H 3 H 5 H 1 H 4 H 1 P HEAT EXCHANGER DETAILS BURNER ASSEMBLY DETAILS...
Page 59: ...59 CONTROL BOX DETAILS 9 J 8 J 23 S 13 J 10 J 3 O 10 J 3 O 5 O FRONT SWITCH DETAILS...
Page 66: ...66...
Page 67: ...67 Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 Litho in U S A NOTES...
