Weil-McLain CGi 4 Series Manual page 12

CGi
SERIES 4 — GAS-FIRED WATER BOILER —
2a
Prepare boiler — placement & setup
Place boiler/crate near
position
1. Leave boiler in shipping carton and on pallet until
installation site is ready.
2. Move entire shipping carton and pallet next to selected
location.
3. Remove shipping carton.
4. Remove boiler from pallet.
a. Tilt left side of boiler up and place a board under
left legs.
b. Tilt boiler the other way and place a board under
right legs.
c. Slide boiler backward off pallet and into position.
5. Check level.
a. Shim legs, if necessary.
b. Do not alter legs.
Inspect orifices and burners
1. Remove front jacket door. Remove burner shield (see
Figure 40
2. Check for correctly-sized manifold orifices. See
for sizing. (The orifice size is stamped on the orifice
spud barrel.)
3. Reinstall burner shield.
Table 2 Manifold orifice sizing at sea level and altitudes to 4,500 feet
Location Boiler model
U. S.
Canada
Note 1:
12
Do not drop boiler or bump jacket on
floor or pallet. Damage to boiler can
result.
, item , page 64).
4
Correctly-sized manifold orifices must
be used. Failure to do so will result in
severe personal injury, death or sub-
stantial property damage.
number
CGi-25
CGi-3 and CGi-5
CGi-4, CGi-6 - CGi-8
CGi-25
CGi-3 and CGi-5
CGi-4, CGi-6 - CGi-8
For elevations above 2,000 feet, contact your local Weil-McLain sales office for details.
Boiler Manual
Orifice replacement
procedure
(when required)
1. Remove the screws securing the burner shield
and remove burner shield.
2. Using a
burner orifices from the manifold.
3. Apply a small amount of pipe dope to each of
the new orifices and install in the manifold us-
7
ing a
fices are aligned correctly, not cross-threaded
in the manifold tappings.
Table 2
4. Carefully replace the burner shield.
5. Follow the check-out procedure, Section
page 36, to assure the boiler is now operating
properly after orifices are replaced.
Natural gas
0-2,000 ft. over 2,000 ft.
2.30 mm
2.55 mm (Note 1)
2.70 mm
0-2,000 ft. 2,000-4,500
2.30 mm #44
2.55 mm #41
2.70 mm #38
Do not operate boiler without
burner shield in place. Failure
to do so could result in severe
personal injury, death or sub-
stantial property damage.
7 " open-end wrench, remove the
16
" open-end wrench. Make sure the ori-
16
Use only pipe dope compatible
with propane gas, even if boiler
is to be operated on natural
gas. Failure to comply could
result in severe personal injury,
death or substantial property
damage.
Propane gas
0-2,000 ft. over 2,000 ft.
#54
1.60 mm (Note 1)
1.65 mm
0-2,000 ft. 2,000-4,500
#54
1.60 mm 1.45 mm
1.65 mm
Part Number 550-142-302/0520
8
#55
#53