Install jacket
Before installing jacket
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 34 of this manual. Failure to comply could result in severe personal injury.
1.These parts must be on boiler:
a.Plugs for unused tappings
b.Supply and return piping and steam supply header
c.Cleanout plates
d.Tankless heaters (when used), tankless heater cover plates (when used), tankless heater piping (when used)
e.Flue damper assembly
f.Observation port assemblies
2.These parts may be on boiler:
a.Burner mounting plate and burner
3.These parts must be off boiler:
a.Water or steam gauge
b.Limit control and low water cutoff
c.Gauge glass and gauge glass cocks,
d.Drain cock
Remove jacket parts from cartons
1.Locate jacket cartons.
2.Remove jacket parts from cartons as needed. Leave in cartons as long as possible to avoid damage.
3.Jacket parts are in the boxes listed below:
Part | Box label descriptions |
|
|
Jacket screws (in jacket corner boxes) | included in CRNR boxes |
|
|
Jacket support brackets & hex nuts | BKT |
|
|
Jacket side support channels, upper & lower | included in TRM/CHNL boxes |
|
|
Jacket front/rear support channels, upper & lower | COM |
|
|
Jacket front panel | |
|
|
Jacket back panel | |
|
|
Jacket side and top panels | L / R / T |
|
|
Jacket corners | CRNR |
|
|
Jacket trim | TRM/CHNL |
|
|
Install support brackets/channels
1.Place upper and lower support brackets over draw rods as shown in Figure 29, page 21. Place the brackets on the sections as given in Figure 27. Sections are numbered from front to back.
2.Fasten each bracket loosely using two 5/8" nuts screwed onto the ends of the tie rods as shown.
Models 488 through 988 do not require lower support brackets. Only upper brackets are required.
Fasten all nuts and screws loosely during assembly to allow adjustment after all jacket frame parts are in- stalled.
20
Figure 27 Place support brackets as listed below
Boiler | Upper brackets on | Lower brackets | |
| sections: | on sections: | |
488 | 2, | 3 | None |
588 | 2, | 4 | None |
688 | 2, | 5 | None |
788 | 2, | 6 | None |
888 | 3, | 6 | None |
988 | 2, 5, 8 | None | |
|
|
| |
1088 | 3, 6, 9 | 6 | |
1188 | 3, 6, 9 | 6 | |
1288 | 3, 7, 10 | 7 | |
1388 | 3, 7, 11 | 7 | |
1488 | 3, 7, 10, 13 | 7 | |
1588 | 2, 5, 8, 11, 14 | 8 | |
1688 | 2, 5, 9, 12, 15 | 9 | |
1788 | 2, 5, 9, 13, 16 | 9 | |
1888 | 2, 6, 10, 14, 17 | 10 |
3.Attach the upper channels to the upper supports as shown in callouts , and , Figure 29, page 21. Use two #10 x ½" screws at each bracket. Models 988 and larger have
•The side channels are labelled A and B in Fig- ure 29. Figure 28 gives the lengths of the side channel parts for each model.
•The channels at the boiler front and rear are part numbers 426400030 & 426400031, re- spectively.
Figure 28 Upper and lower side channel lengths
Boiler | Upper channel lengths | Lower channel lengths | ||||
|
| (inches) |
| (inches) | ||
| A |
| B | A |
| B |
488 | 30 |
| NA | 26 |
| NA |
588 | 38 |
| NA | 34 |
| NA |
688 | 46 |
| NA | 42 |
| NA |
788 | 54 |
| NA | 50 |
| NA |
888 | 62 |
| NA | 58 |
| NA |
|
|
|
|
|
|
|
988 | 35 |
| 35 | 66 |
| NA |
|
|
|
|
|
|
|
1088 | 43 |
| 35 | 40 |
| 34 |
1188 | 43 |
| 43 | 40 |
| 42 |
1288 | 51 |
| 43 | 48 |
| 42 |
1388 | 51 |
| 51 | 48 |
| 50 |
1488 | 51 |
| 59 | 48 |
| 58 |
1588 | 59 |
| 59 | 56 |
| 58 |
1688 | 67 |
| 59 | 64 |
| 58 |
1788 | 67 |
| 67 | 64 |
| 66 |
1888 | 71 |
| 71 | 72 |
| 66 |
4.Attach the four jacket corners to the upper channels as shown in callout , Figure 29, page 21. Corner part numbers are: 426400054 (front left), 055 (front right), 056 (back left), and 057 (back right).
5.Attach the lower side, front and rear channels to the jacket corners as shown in callouts and of Figure 29, page 21. Models 1088 and larger have
Part No.