Frymaster 47 SERIES Installation, Operation, Service, And Parts Manual page 99

7.11 Redesigned FootPrint III System
Supplemental Information
In September 1997, Frymaster began pro-
duction of a modified FootPrint III Filtration
System for 47 Series Gas Fryers. The modi-
fied FPIII is distinguished from original-
design units by the absence of casters on the
filter base assembly. The modification incor-
porated a redesigned oil return system that al-
lows oil/shortening to drain back to the filter
pan when the filter system is turned off, elimi-
nating the need for most heated oil return
Original System
Oil return manifolds assembled from ½" NPT
piping and fittings.
Return lines and manifolds wrapped with silicone
strip heaters and aluminum tape.
Filter base assembly connected to unit with a
black, heated return hose beneath the filter.
Filter base assembly equipped with swivel cast-
ers.
Operator-removable filter base assembly. (Filter
base assembly stoplocks in cabinet can be ro-
tated to remove tray.)
Oil/shortening remains in return lines when filter
system is turned off.
Square Drain Sub-System
The only change to the square drain sub-
system is the addition of a ¼" NPT coupling
to the leftmost end sections to allow attach-
ment to a vacuum-breaking solenoid.
8
47 SERIES GAS FRYERS
CHAPTER 7: SERVICE PROCEDURES
ORIGINAL VS REDESIGNED FP-III FILTRATION SYSTEM
The
components. Additionally, one-piece, welded
oil return manifolds eliminate the many cou-
plings in the original design. The changes are
summarized in the table below.
Operation of the modified FP-III system is the
same as for the original design.
changes in the major sub-systems of the filtra-
tion system are discussed in the following
paragraphs. NOTE: Numbers in the illus-
trations refer to the Item Numbers in the Ab-
breviated Parts List at the end of this section.
Redesigned System
One-piece, welded oil return manifolds .
No heater strips or aluminum tape on return lines
or manifolds.
Non-heated Teflon hose with a swivel joint con-
nects the filter base assembly to the unit above
the filter.
Filter base assembly has no casters.
Filter base assembly is not removable except by
a qualified service technician. (Filter base as-
sembly stoplocks fitted with a screw and nut to
prevent filter removal.)
Oil/shortening gravity-drains back to the filter pan
when filter system is turned off, leaving no oil or
shortening in return lines or manifolds.
new end sections may also be used on the
original-design filtration system by plugging
the vent port with a ¼" NPT pipe plug coated
with sealant. All other square drain compo-
nents remain unchanged.
7-40
Specific
7