Frymaster FTB-350A - Manual (Page 10)

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B. TEST POWER TO FRYER INTERFACE BOARD
1. Switch the HP690 POWER switch (11) to ON.
2. RELAY POWER indicator (3) should illuminate.
3. Turn power off switching the HP690 POWER switch (11) to OFF.
C. TEST MELT-CYCLE FUNCTION
1. Switch the HP690 POWER switch (11) to ON.
2. Set FTB-350A PROBE switch (7) to 3°C/37°F.
(a)
RELAY POWER indicator (3) illuminates.
(b) HEAT indicator (4) should cycle on and off. “MLT-CYCL” is
displayed on the controllers alternating with setpoint on the left and
actual temperature on the right.
3. Set FTB-350A PROBE switch (7) to 97°C/206°F.
(a) HEAT indicator (4) should illuminate continuously.
(b) Setpoint is displayed on the left and actual temperature on the right.
NOTE: Only RIGHT HEAT indicator (4) will function and only VARIABLE
knob (9) will function.
4. Turn power off by switching the HP690 POWER switch (11) to OFF.
D. TEST CONTROLLING FUNCTION
1. Switch the HP690 POWER switch (11) to ON (set point = 340°F/171°C).
2. Set FTB-350A PROBE switch (7) to VARIABLE.
(a) RELAY POWER indicator (3) illuminates.
(b)
Rotate VARIABLE knob (9) counterclockwise until controller
indicates a temperature.
(c) Rotate VARIABLE knob (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 knob (9) counterclockwise very slowly
until HEAT indicator (4) cycles ON. DROP band is 338°F/170°C-
344°F/173°C.
(e) HEAT indicator (4) should now cycle ON and OFF very slowly.
E. TEST CONTROLLER HIGH LIMIT
1. Switch the HP690 POWER switch (11) to ON.
2. Set FTB-350A PROBE switch (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).