Service Manual

15
2. Sequence Flow Chart
F/S check
1 to 3-min. timer in control (S4 dip switch 1 & 2)
"G" Control Board Sequence Flow Chart
1. 1-Minute Fill
Cycle
Cycle Steps
2. Harvest Cycle
•WVtime:6min.orthelengthofharvestminus50sec.
(S4 dip switch 7), whichever is shorter. DO NOT ADJUST S4 dip switch 7.
•Maximumharvesttime:20min.
Thermistor in control
3. Freeze Cycle
•Minimumfreezetime:5min. •Maximumfreezetime:freezetimersetting
(S4 dip switch 9 & 10)
F/S in control
4. Pump-Out Cycle
•Factorysetforevery
10th cycle
(S4 dip switch 5 & 6) •PMstopsfor2sec.,
then reverses for 10/20 sec.
(S4 dip switch 3 & 4)
DO NOT ADJUST S4 dip switch 3 and 4 to 3 off and 4 on.
WV energized
F/S open
WV continues Comp energized FMR energized HGVs energized
Thermistor temperature reaches 48°F (9°C) (3.9 kΩ or less). Harvest timer starts.
F/S open
Comp continues FMR continues PM continues LLVs energized HGVs de-energized
F/S closed
Comp continues FMR continues PM de-energized for 2 sec., then energized in reverse direction for 10/20 sec. HGVs energized LLVs de-energized
F/S check
Startup begins here after 5-sec. delay
If F/S is open, Comp and FMR de-energize and cycle returns to 1-Minute Fill Cycle
5-min. timer in control
F/S closed
F/S open or freeze timer terminates
50 sec.
PM energized WV de-energized
Harvest Pump Timer
KMS-830MLH with SRK-8H/3
Legend: BC–bin control Comp–compressor FMR–fan motor-remote F/S–oat switch
HGVs–hot gas valves (KMS and SRK) LLVs–liquid line valves (KMS and SRK) PM–pump motor WV–inlet water valve
1. Bin Full
Shutdown Delay: •Fill Cycle – 15 sec. after activation. •Harvest Cycle – At the end of the harvest cycle, or up to 15 sec. into the
freeze cycle if activated at the end of the harvest cycle.
•Freeze Cycle – 15 sec. after activation if activated at least 15 sec. before
the 5-min. short cycle protection timer terminates. Otherwise, at the end of the next harvest cycle.
Shutdown andRestart
BC Operation
BC open Green"BCCLOSED"LEDoff Yellow"BCOPEN"LEDon
Yellow"BCOPEN"LEDcontinues All components de-energized
2. Icemaker Off All components de-energized.
3. Ice Level Lowered
Ice level lowered. No ice pressing against BC actuator paddle. Icemaker starts at "1.1-MinuteFillCycle."
To 1 above
BC closed Green"BCCLOSED"LEDon Yellow"BCOPEN"LEDoff
Components Energized when the Control Switch is in the "WASH" Position The"WASH"positiononthecontrolswitchisusedwhencleaningandsanitizingtheunit.Wheninthe"WASH"position, power is supplied to the pump motor. With the cleaning valve closed, the cleaner and sanitizer ow over the outside of the evaporator plate assembly. With the cleaning valve open, the cleaner and sanitizer ow over both the outside and the inside of the evaporator plate assembly.
Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the unit will not re-start when the
controlswitchisplacedinthe"ICE"position.