Installation Instructions

22 | Installation
SB625WS/SB745WS6 720 805 218 (2016/02)
5.3.2 Removing the hinge assembly “B”
▶ Ensure that the side safety bolt is tight.
▶ Remove the main fixing bolt.
▶ With the door open, remove the hinge assembly ‘B’ (bushing, bolt,
and washer) opposite the pivot side of the door.
Fig. 20 Remove hinge assembly B
[1] Bushing
[2] Washer
[3] Bolt
5.4 Burners
Installing the burner
Follow the burner manufacturer’s instructions when fitting the burner.
An accessory plate may be required if a non-standard burner is used (see
factory for details).
Follow the burner manufacturer’s instructions when fitting the burner.
As standard, the burner plate gasket must be trimmed in order to fit the
burner blast tube. The installer must cut the hole 3/8" larger than the
blast tube diameter.
The combustion chamber door must be opened to allow the burner to be
mounted.
Fig. 21 Burner
[A] Ceramic insulation (shipped loose)
[L] Minimum length
[Ø ] Diameter
A
1
3
2
6 720 805 218-31.1T
A pre-drilled burner plate is included with the boiler
vessel.
When you finish installing the burner, fill the gap
between the burner tube and the refractory material in
the door with the ceramic insulation (A) supplied with
the boiler.
A
Ø
L
6 720 805 218-63.1T
SB625WS SB745WS
Model 160 220 290 370 480 640 800 1050 1300 1550
Min. L
inch (mm)
6 5/16
(160)
6 11/16
(170)
7 1/16
(180)
7 1/16
(180)
7 11/16
(195)
7 7/8
(200)
7 7/8
(200)
7 7/8
(200)
8 1/16
(205)
8 1/16
(205)
DOOR HOLES Ø
inch (mm)
7 1/2
(190)
7 1/2
(190)
8 7/8
(225)
8 7/8
(225)
10 1/4
(260)
10 1/4
(260)
10 1/4
(260)
10 1/4
(260)
12 3/16
(310)
12 3/16
(310)
Table 9 Installation dimensions