Place Boiler - Weil-McLain WGO 4 Series Manual

WGO
OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 4—
Install boiler –
Fiberglass wool and ceramic fiber materials are
possible cancer hazards. See warning on page 40.

Place boiler

Semi-packaged WGO-2 through 6 — position
on site
Smaller sized boilers may be top heavy. Use caution
when handling to avoid minor personal injury or
property damage.
Boiler is shipped for back flue outlet. To change to top flue outlet
(see Figure 4, page 13):
1. Remove the jacket cap and the 8.00" diameter piece of insula-
tion that covers the vent opening from the top jacket panel.
2. Loosen two (2) screws holding flue cap strap to collector
hood. Remove strap and flue cap from opening. Re-tighten
screws.
3. Check rope placement inside flue cap.
(Read above Step #1 on page 13.)
4. Loosen two (2) screws on back flue outlet. Set flue cap on
outlet. Install strap by engaging slots in screws. Tighten
screws. Make sure cap is securely installed.
5. Place the jacket cap insulation disc in the back opening of
the boiler covering the flue cap.
6. Snap jacket cap in back outlet opening.
Jacket cap and insulation disc must be in place on
boiler to avoid requiring an 18" minimum clearance
from back of boiler to combustible material.
12
SERVICE TECHNICIAN ONLY — read and follow completely.
Semi-packaged and Knocked-down boilers only
Boiler Manual
Knocked-down WGO-7, 8 & 9 — split the
assembled block for easier handling
Figure 4, page 13)
1. Open burner mounting door and, using utility knife, slit floor
insulation at joint to be separated.
2. Remove 5½" draw rod and the longest draw rod from each
side. Pull block apart. Save draw rods, nuts, washers and seal-
ing rings for reassembly.
3. Move divided block to location.
4. Clean port openings with clean rag.
Do not use petroleum-based compounds to clean
openings. Damage to system components can re-
sult, causing property damage.
5. Place rings in port openings. If ring slips out of groove, stretch
ring gently for several seconds, then place in groove.
6. Position sections so aligning lugs fit into sockets of next
section. Make sure sealing rope is in good condition and in
position.
7. Oil threads on draw rods. Install washer and nut on end to
be tightened. Use nut only on other end.
8. With wrench at washer/nut end, uniformly tighten nuts start-
ing with 5½" rod at large port, 5½" rod at small port, bottom
long rod and finally top long rod.
9. Torque on both 5½" rods and bottom long rod should be
50-60 ft. lbs.; long top rod should be 20-25 ft. lbs. Do not
back-off nuts.
10. Metal-to-metal contact should be made around port open-
ings. If gap does exist, it should be less than .020". Check
with feeler gauge.
11. If gap around port openings exceeds .020", check for dirt on
port openings, sockets or misaligned lugs. If corrections are
made and gap still exists, contact our Technical Services group
for assistance before continuing installation.
(see
Part number 550-142-331/0421