Weil-McLain CG Series Manual page 4

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 maxi¬
mum speed. Do not operate a summer exhaust fan. Close
fireplace dampers.
d. Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so appliance
will operate continuously.
e. Test for spillage at the draft hood relief opening after 5 min¬
utes 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, ANSI Z223.1 - latest edition. 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
Appendix G in the National Fuel Gas Code, ANSI Z223.1-
latest edition.
Canadian installations must comply with CAN/CGA B 149.1 or
.2 Installation Codes.
SELECT THE BOILER LOCATION
• Consider all connections to boiler before selecting a location.
• Boiler must be installed so that gas control system compo¬
nents are protected from dripping or spraying water or rain
during operation or service.
WARNING
To avoid personal injury, death or
property damage, keep boiler area
clear and free from combustible ma¬
terials, gasoline and other flammable
vapors and liquids.
INSTALLATION CLEARANCES
Suggested for easy servicing:
24 inches for cleaning and servicing, left side.
18 inches for access to controls and components, front.
35 inches from top for cleaning flueways.
7 inches on remaining sides.
Screwdriver clearance for removal of jacket screws should be
provided. If not, unions and shut-off valves should be installed
in system so boiler can be moved for servicing.
Required clearances to combustible material for closet
installations
Top 35" R. Side 2" Front 3"
Rear 7" L. Side 6"
Hot water pipes must be at least lA inch from combustible
material.
Single wall vent pipe must be at least 6 inches from com¬
bustible material.
Double wall vent pipe refer to vent manufacturer's recommen¬
dation for clearances to combustible material.
RESIDENTIAL GARAGE INSTALLATION
Install boiler so burners are at least 18 inches above the floor.
FIGURE 1
BOILER FOUNDATION
Boilers are approved for use on combustible flooring but must
not be installed on carpeting.
WARNING
Do not install boiler on carpeting even
if foundation is used. Fire can result
causing severe personal injury, death
or substantial property damage.
1. Level concrete or solid brick pad foundation is required if:
a) Water could flood area.
b) Non-level conditions exist.
2'M!N
4
BOILER FOUNDATION
FIGURE 2