Burnham 20_PV_I - Manual (Page 10)

10
Table 5: Burnham Vent System Components
Figure 7: Vent Connector Installation
B. Removal of Existing Boiler. For installations not
involving the replacement of an existing boiler,
proceed to Step C.
When an existing boiler is removed from a common
venting system, the common venting system is likely to
be too large for proper venting of the remaining
appliances. At the time of removal of an existing
boiler, the following steps shall be followed 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) Seal any unused openings in the common venting
system.
(b) Visually inspect the venting system for proper size
and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion, and
other deficiencies which could cause an unsafe
condition.
(c) Insofar as is practical, close all building doors and
windows and all doors between the space in which
the appliances remaining connected to the common
venting system are located and other spaces of the
building. Turn on clothes dryers and any appliance
not connected to the common venting system. Turn
on any exhaust fans, such as range-hoods and
bathroom exhausts, so they will operate at
maximum speed. Do not operate a summer exhaust
fan. Close fireplace dampers.
(d) Place in operation the appliance being inspected.
Follow the Lighting (or Operating) Instructions.
Adjust thermostat so appliance will operate
continuously.
(e) Test for spillage at the drafthood relief opening
after 5 minutes of main burner operation. Use the
flame of a match or candle, or smoke from a
cigarette, cigar or pipe.
(f) After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers
and any other gas burning appliance to their
previous conditions of use.
(g) Any improper operation of the common venting
system should be corrected so the installation
conforms with the National Fuel Gas Code, NFPA
54/ANSI Z223.1. When resizing any portion of the
common venting system, the common venting
system should be resized to approach the minimum
size as determined using the appropriate tables in
Part II in the National Fuel Gas Code, NFPA 54/
ANSI Z223.1.
C. Install Vent Connector.
1. Remove vent connector from vent accessory carton.
2. Remove gaskets, orifice plate and hardware from
blower outlet flange.
3. Assemble orifice plate gaskets, orifice plate, and
vent connector. See Figure 7.
4. Secure vent connector with washers and locknuts.
3. Minimum vent length requirement is 2 feet of pipe
and one (1) elbow. Maximum vent length is 15 feet
with one (1) or two (2) elbows.
4. Do not install venting system components on the
exterior of the building except as specifically
required by these instructions.
Vent System
Comp onent
Bu rnham
*Car to ned
Part
Number
Bu rnham
Comp onent
Part
Number
3" Dia. P ipe x 1 Ft 611 60112 8116135
3" Dia. P ipe x 3 Ft 61160101 8116058
3" Dia. P ipe x 4 Ft ** 8116176
3" Dia. P ipe x 5 Ft 6116 0111 8116059
3" Dia . 90 E lbow 61160121 8116060
3" Dia . 45 E lbow 61160131 8116061
* Com plete with Lock ing B and(s )
* * 61160 33 Contains (4 ) 4 ft. l engths
61160 40 Contains (2 ) 4 ft. l engths