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STAT
IM 2000/2000S
Service Guide
96-106775 Rev 5.0
11. Steam Generator, Check Valve, Thermal Fuse and Pressure Relief Valve
Steam Generator Thermal Fuses
You may encounter four types of thermal fuse configurations on STAT
IM units. Three for
aluminium steam generators and one for the stainless steel generator. Early 1st generation
aluminium steam generators had a single thermal fuse located in series in the main power supply
line to the generator (the black wire) which was held in place by a mounting bracket on the
underside of the steam generator.
This was replaced with a double fuse, again, in series in the main power supply line and
sandwiched between the bracket and the steam generator base. Unlike the single fuse, this
protected more of the surface area of the underside of the steam generator.
It should be noted that the steam generator bases/brackets may be different, so the
appropriate fuse must be obtained for each steam generator.
The three configurations for aluminium steam generators are as follows (see Figure 9):
Figure 9
STAT
IM
5000/5000S/5000 G4 Service Guide