Brandon has over the years developed different versions of computer control fryers.   As we add more features to the new version, the earlier version has not been discontinued as their no-frills design is still welcomed by many fast food restaurants with a concern on budget.  

Price aside, let's take a look at the differences in their features:

Conventional design Later designs
Collections FRYH FRYS / FRYA / OEF
Dimension for one full tank (mm) 400 x 800;
840 working height
400 x 800;
880 working height
Power (kW) 18 15
Vat volume (liter) 28-32 18 (Low Oil Volume)
Stainless steel Grade Galvanized steel for back and lateral;  Vat is of 201. Vat is of 304; others are of 201.
Gauges Thinner Thicker
Cold Zone Yes Depending on collection
Heating element Conventional tubular profile Ribbon type: lower thermal density and sustain higher power; easier to clean
Heating element (spring up for easy cleaning) Yes Yes
Number of programming channel 12 40
Cooking Menu Text Input - Yes
Setting of date and time - Yes
Automelt cycle for solid shortening (oil) Yes Yes
Shake basket reminder buzzer (for French Fries) Yes Yes
Different programming temperature setting - Yes
Load compensation - Yes
Temperature accuracy (deg C) +/-2 +/-1
Cook Remain (Filter Reminder) - 99
AIF (Rush hour filter reminder bypass) - Yes
Vat Deep Clean Mode - Yes
REC (automatic daily check on oil heat up speed) - Yes
Quality time - Yes
Drain valve safety latch Yes Yes
Heating auto-cutout during filter - Yes
Hi Limit (Hi Temperature Cutout) Yes Yes
Hi Limit Test - Yes
Special heater bracket - Yes (oil droplets and fumes will not ingress into electric wiring so reduce risk of fire)
Optional auto basket lift-up - Yes
Optional built-in filtering system Yes Yes