Frymaster FTB-350A - Manual (Page 7)

7
D. TEST CONTROLLING FUNCTION
1. Press controller ON/OFF switch to ON (set point = 340°F/171°C).
2. Set FTB-350A PROBE switches (6 & 7) to VARIABLE.
(a) RELAY POWER indicator (3) illuminates.
(b) Rotate VARIABLE knob (8 & 9) counterclockwise until controller
indicates a temperature.
(c) Rotate VARIABLE knob (8 & 9) slowly clockwise until controller
indicates DROP.
(d) Press Temperature button on controller. Controller should indicate a
temperature from one (1) to (4) degrees +/- set point (340°F/171°C).
If not, rotate the VARIABLE knobs (8 & 9) counterclockwise very
slowly until HEAT indicators (2 & 4) cycles ON. DROP band is
338°F/170°C-344°F/173°C.
(e) HEAT indicators (2 & 4) should now cycle ON and OFF very slowly.
E. TEST CONTROLLER HIGH LIMIT
1. Press controller ON/OFF switch to ON.
2. Set FTB-350A PROBE switches (6 & 7) to 414°F/212°C.
(a) RELAY POWER indicator (3) illuminates.
(b) Controller
displays “HOT” “HI-1” alternating with the temperature and
the alarm sounding.
(c) RELAY POWER indicator (3) is no longer illuminated.
(d) Turn off FTB-350A POWER switch (10).
F. TEST PROBE FAILURE MALFUNCTION
1. Press controller ON/OFF switch to ON.
2. Set FTB-350A PROBE switches (6 & 7) to SHORT.
(a) RELAY POWER indicator (3) illuminates.
(b) Controller displays “HIGH LIMIT FAILURE” alternating with
“DISCONNECT POWER” and the alarm sounding.
(c) RELAY POWER indicator (3) is no longer illuminated.
(d) Turn off FTB-350A POWER switch (10).
(e) Controller test is now complete.