Weil-McLain EG - Manual (Page 8)

Part Number 550-110-639/0703 8
EG, PEG, EGH G
AS
-
FIRED
B
OILERS
—
SERIES
4 — B
OILER
M
ANUAL
Installation
(continued)
1
Spill switch installation
On EG 30-75 boilers only, fasten spill switch to draft
hood as shown on page 22, Drawing Ref. Letter “K”.
Connect wires as shown in Control Supplement.
Damper installation
If damper will be installed, see Control Supplement for
information.
Breeching erection
Connect from draft hood or damper outlet to chimney
or vent with same size breeching. Where possible, vertical
venting to the outside from draft hood or damper outlet
will offer best performance. Where horizontal breeching
is used, slope upward at least 1/4 inch per lineal foot
toward chimney or vent and support with hangers to
prevent sagging.
A vertical height of 3 feet to 5 feet of
breeching before any elbow or horizontal
breeching is recommended to reduce
chances of flue gas spillage at draft hood
on EGH-95 thru -125 boilers (not
restricted on any EG or EGH-85). Long
horizontal breechings, excessive numbers
of elbows or tees, or other obstructions
which restrict the flow of combustion gases
should be avoided.
Breeching must not be connected to any portion of a
mechanical draft system operating under positive
pressure.
Draft hood installation
Attach draft hood to flue collector hood using #10 x 1/2"
sheet metal screws provided. Use boiler cement furnished
to provide gas tight seal.
Failure to maintain gas-tight seal can cause
flue gas spillage and carbon monoxide
emissions, resulting in severe personal
injury or death.
Do not alter boiler draft hood or place any
obstruction or non-approved damper in
the breeching or vent system. A.G.A. and
C.S.A. certifications will become void. Flue
gas spillage and carbon monoxide
emissions will occur causing severe
personal injury or death.
Jacket installation
(Factory installed on PEG
boilers)
1. Remove the proper knockout discs from panels as
shown in tapping table, page 6.
Tankless and storage heater knockouts
must be removed for EG and EGH boilers
with optional tankless heaters prior to
jacket installation.
2. Follow Jacket Instructions in jacket carton.
Figure 10 Draft hood
Seal across back of
block assembly with
boiler cement between
cast iron and sheet
metal edge of draft hood