Hoshizaki KM-2500SRH3 User Manual download pdf (Page 14)

2. Sequence Flow Chart

"E" Control Board Sequence Flow Chart

KM-2500SWH3, KM-2500SRH3

Startup begins

here after

5-sec. delay

4. Pump-Out Cycle

• Factory set for every

cycle (S4 dip switch

5 & 6)

• Pump motor stops for

2 sec., then reverses

for 10/20 sec. (S4 dip

switch 3 & 4)

F/S Check

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 restart when the

control switch is placed in the "ICE" position.

Legend:

Comp–compressor

FMR–fan motor-remote

F/S–oat switch

HGV–hot gas valve

LLV–liquid line valve

PM–pump motor

TBC–thermostatic bin control

WV–inlet water valve

1. 1-Minute Fill

Cycle

2. Harvest Cycle 3. Freeze Cycle

WV energized

F/S open

F/S closed

WV continues

Comp energized

FMR energized

HGV energized

Thermistor temp

warms to 48°F (9°C)

(3.9 kΩ or less)

Harvest timer starts

F/S open

Comp continues

FMR continues

LLV energized

PM energized

HGV de-energized

WV de-energized

F/S closed

F/S Check

• WV time: 6 min. or the length of harvest,

whichever is shorter.

• Maximum harvest time: 20 min.

Thermistor in control

1 to 3-min. timer in control

(S4 dip switch 1 & 2)

• Minimum freeze time: 5 min.

• Maximum freeze time: freeze timer setting

(S4 dip switch 9 & 10

5-min. timer

in control

F/S in control

If F/S is open, compressor stops and cycle returns to 1-Minute Fill Cycle

1. Bin Full

Unit shuts down

within 10 sec.

after ice contacts

thermostatic bulb.

Shutdown

and Restart

TBC Operation

Ice contacts

thermostatic bulb

2. Icemaker Off

All components

de-energized.

3. Ice Level Lowered

Ice level lowered. No ice

touching thermostatic

bulb. Icemaker starts at

"1. 1-Minute Fill Cycle."

TBC closed

TBC open

All components

de-energized

To 1 above

Comp continues

FMR continues

HGV energized

WV energized if dip switch

3& 4 set to 3 off and 4on.

LLV de-energized

PM de-energizes for 2 sec.,

then reverses for 10/20 sec.

F/S open or freeze

timer expires

Cycle Steps

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 60 61

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Hoshizaki KM-2500SRH3 User Manual Page 14

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