Hoshizaki DB-200H User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Model
DB-200H
Ice Dispensing Bin
Hoshizaki America, Inc.
Number: 73136
Issued: 5-8-2006
SERVICE MANUAL

2
IMPORTANT
Only qualified service technicians should attempt to service or maintain this
dispensing bin. No service or maintenance should be undertaken until the
technician has thoroughly read this Service Manual.
HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
service and maintenance of the dispensing bin.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call or write to the HOSHIZAKI Technical Support Department for
assistance.
HOSHIZAKI AMERICA, INC.
618 Highway 74 South
Peachtree City, GA 30269
Attn: HOSHIZAKI Technical Support Department
Phone: [phone] Technical Service
[phone]
Fax: [phone]
[phone]
Web Site: www.hoshizaki.com
Note: To expedite assistance, all correspondence/communication MUST include the
following information:
   •ModelNumber
   •SerialNumber
   •Completeanddetailedexplanationoftheproblem

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Please review this manual. It should be read carefully before the dispensing bin is
serviced or maintenance operations are performed. Only qualified service technicians
should service and maintain the dispensing bin. This manual should be made available
to the technician prior to service or maintenance.
CONTENTS
I. Specification ....................................................................................................................... 4
II. General Information ........................................................................................................... 5
A. Construction.................................................................................................................. 5
III. Technical Information ........................................................................................................ 6
A. Wiring Diagram ............................................................................................................. 6
IV. Service Diagnosis ............................................................................................................. 7
V. Removal and Replacement of Components ..................................................................... 9
A. Gear Motor and Chain .................................................................................................. 9
B. Safety Switch ................................................................................................................ 9
C. Spout Switch ................................................................................................................. 9
D. Solenoid ...................................................................................................................... 10
VI. Cleaning and Maintenance Instructions ......................................................................... 11
A. Cleaning Instructions .................................................................................................. 11
1. Cleaning Procedure............................................................................................... 11
2. Sanitizing Procedure – Following Cleaning Procedure.......................................... 13
B. Maintenance................................................................................................................ 13
1. Exterior Panels ...................................................................................................... 13
2. Chain ..................................................................................................................... 13
C. Preparing the Ice Dispensing Bin for Long Storage.................................................... 13

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I. Specification
We reserve the right to make changes in specifications and design without prior notice.
A
C SUPPLY VOLTAGE 115/60/1
A
MPERAGE 1.4
A
MINIMUM CIRCUIT AMPACITY 15
A
MAXIMUM FUSE SIZE 15
A
A
PPROXIMATE ELECTRIC CONSUMPTION 110 W
A
PPROXIMATE STORAGE CAPACITY 200 lbs (91 Kg)
A
PPROXIMATE ICE DISPENSING SPEED 13 lbs/min (6 kg/min)
EXTERIOR DIMENSIONS ( W x D x H ) 30" x 30" x 53" (762 x 757 x 1346 mm) With 6" Legs
INTERIOR DIMENSIONS ( W x D x H ) 23.3" x 22.4" x 22.5" (592 x 569.5 x 571 mm)
EXTERIOR FINISH Plastic/SUS Front Cover, P.V.C Galvanized Steel Side Panel
s
Galvanized Steel Rear Panel
INTERIOR FINISH Polyethelene 1 pc. Mold
INSULATION Polyurethane Foam
WEIGHT Net 187 lbs (85 kg), Shipping 220 lbs (100 kg)
CONNECTIONS - ELECTRIC Permanent Connection
- DRAIN Outlet 3/4" FPT
- WATER INLET N/
A
GEAR MOTOR 60 W
A
GITATOR Stainless Steel Round Bar 14.5" Dia.
GEAR MOTOR PROTECTION Thermal Protector (Internal)
SAFTEY PROTECTION Interlock Switch for Front Panel
Saftey Switch for Ice Spou
t
ACCESSORIES 6" Legs, 4 pcs
OPERATING CONDITIONS VOLTAGE RANGE 104 - 132 V
AMBIENT TEMP. 45 - 100° F

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II. General Information
A. Construction
Agitator
Bin Body
Junction Box Cover
Junction Box
Gear Motor
Assembly
Solenoid
Assembly
Side Panel
Drain Pan
Safety
Switch
Front Panel
Spout (A)
Shutter
Spout Switch
Door
Switch

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III. Technical Information
A. Wiring Diagram

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IV. Service Diagnosis
Problem Possible Cause Remedy
[1] No ice dispensed. a) Power Supply 1. "OFF" position. 1. Move to "ON" position.
2. Loose connection. 2. Tighten.
3. Bad contacts. 3. Check for continuity and
replace.
4. Voltage too high. 4. Check and get
recommended voltage.
b) Fuse (Inside Fused
Disconnect, if any)
1. Blown. 1. Check for short circuit and
replace.
c) Spout Switch 1. Bad contacts. 1. Check for continuity and
replace.
2. Loose connection. 2. Tighten.
d) Door Switch 1. Front panel is not in
position.
1. Place in position.
2. Actuating plate does not
push door switch.
2. Check for continuity and
adjust.
3. Bad contacts. 3. Check for continuity and
replace.
4. Loose connection. 4. Tighten.
e) Safety Switch 1. Spout is not in position. 1. Check for continuity and
place in position.
2. Bad contacts. 2. Check for continuity and
replace.
3. Loose connection. 3. Tighten.
f) Gear Motor 1. Thermal protector is
tripped.
1. Allow to cool.
2. Gear motor winding
opened.
2. Replace.
3. Bearing worn out. 3. Replace.
4. Wiring to gear motor. 4. Check for loose connection
or open circuit, and replace
wiring as needed.
5. Defective capacitor. 5. Replace.
6. Agitator rotates in
reverse direction.
6. Check leads and reverse the
connections.
g) Solenoid 1. Solenoid winding open. 1. Replace
2. Wiring to solenoid. 2. Check for loose connection
or open circuit, and replace
wiring as needed.
3. Overload due to
loosening screws.
3. After tightening, apply
thread sealant to the parts.

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Problem Possible Cause Remedy
h) Mechanism 1. Chain out of position or
loose.
1. Place in position or tighten.
2. Corrosion. 2. Apply oil.
3. Key of sprocket is not in
position.
3. Place in position.
4. Bad alignment of
sprocket.
4. Readjust.
5. Foreign matter
interrupting agitator.
5. Remove foreign matter.
i) Ice Storage 1. No ice or little ice in
storage bin.
1. Make ice.
2. Ice bridge or block
formed.
2. Break with a poker.
[2] Abnormal noise. a) Gear Motor or Gear Head 1. Bearing worn out. 1. Replace.
2. Grease leaks. 2. Supply grease and replace
O-ring.
b) Mechanism 1. Bad setting. 1. Apply oil and readjust.
2. Bad alignment of
sprocket.
2. Readjust.
3. Foreign matter
interrupting agitator.
3. Remove foreign matter.
c) Solenoid 1. Overload due to
loosening screws.
1. After tightening, apply
thread sealant to the parts.
2. Foreign matter on
plunger.
2. Clean.
[3] Ice in storage bin often
melts.
a) Bin Drain 1. Foreign matter blocking
bin drain.
1. Remove foreign matter.

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V. Removal and Replacement of Components
A. Gear Motor and Chain
1) Turn off the power supply.
2) Remove the front panel and right side
panel.
3) Loosen the four bolts securing Gear Motor
Bracket (B) and loosen the adjustment bolt.
4) Remove the chain.
5) Loosen the socket set screw securing the
sprocket, then use a gear puller to remove
the sprocket.
6) Install a new gear motor.
7) Assemble the removed parts in the reverse
order of the above procedure.
NOTE:
•Whenweight(2.2Ib)isappliedtothechainatthecenter,thedisplacementmustbe
0.31 to 0.51".
•Lubricant(ClassSAE20)mustbeappliedtothechainusingacloth.
8) Turn on the power supply.
B. Safety Switch
1) Turn off the power supply.
2) Remove the front panel.
3) Remove the safety switch cover.
4) Disconnect the connectors from the safety switch leads.
5) lnstall a new safety switch.
6) Assemble the removed parts in the reverse order of the above procedure.
7) Turn on the power supply.
C. Spout Switch
1) Turn off the power supply.
2) Remove the front panel.
3) Remove the spout switch assembly.
4) Disconnect the connectors from the spout switch leads.
5) Install a new spout switch.
6) Assemble the removed parts in the reverse order of the above procedure.
7) Turn on the power supply.
Gear Motor
Bracket (B)
Adjustment Bolt
Chain
Bolts
Bolts
Sprocket

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D. Solenoid
1) Turn off the power supply.
2) Remove the front panel and the right side panel.
3) Disconnect the connectors from the solenoid leads, and remove the solenoid assembly.
4) Remove the solenoid, and install a new solenoid. Securing torque should be
13 to 17.3 in. lb.
5) Assemble the removed parts in the reverse order of the above procedure.
6) Turn on the power supply.

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VI. Cleaning and Maintenance Instructions
IMPORTANT
Ensure all components, fasteners and thumbscrews are securely in place after
any maintenance or cleaning is done to the equipment.
A. Cleaning Instructions
WARNING
1. HOSHIZAKI recommends cleaning this unit at least once a year. (See the
"Cleaning Instructions" on the icemaker.) More frequent cleaning, however,
may be required in some existing water conditions.
2. To prevent injury to individuals and damage to the icemaker/ice dispensing
bin, do not use ammonia type cleaners.
3. Always wear liquid-proof gloves to prevent the cleaning and sanitizing
solutions from coming into contact with skin.
1. Cleaning Procedure
See Fig. 1
1) Clean and sanitize the ice dispensing bin/icemaker (see the cleaning instructions on the
icemaker) as conditions require.
2) Remove all ice from the bin.
3) Disconnect electrical power to the ice dispensing bin/icemaker.
4) Remove or reposition the icemaker to allow access to the inside. Be sure that the
icemaker is secured and cannot fall.
5) Remove the front panel from the ice dispensing bin.
6) Remove the grill and chute from the front panel.
7) Remove the shutter assembly and Spout (A) from the bin as follows:
a. Remove the snap pin fitted to the shutter shaft. Shift the shaft to the left, pull out the
right side and slide out.
b. Pull out on the sides of the hook to release Spout (A). Lift the spout up and out from
the bin. Take off the snap pin and the shaft from Shutter (B). Open out Shutter (B)
and remove Shutter (B) and the balance weight.
c. Remove the thumbscrews securing the hook and remove the hook.
8) Dilute approximately 5 fl. oz. of Hoshizaki "Scale Away" with 1 gallon of warm water.
9) Scrub the inside of the bin, the agitator, the bin spout, the front panel spout, the grill, the
chute and all parts removed in step 7 using a nylon scouring pad, brushes and cleaning
solution.
10) Rinse all parts thoroughly with clean water.

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Inside of Bin
Agitator
Spout – Front Panel
Chute
Snap Pin
Shutter Assembly
Spout – Bin
Hook
Shaft
A
A
Grill
Shutter (B)
Thumbscrew
Spout (A)
Snap Pin
Balance Weight
Fig. 1

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2. Sanitizing Procedure – Following Cleaning Procedure
1) Dilute approximately .5 fl. oz. of a 5.25% sodium hypochlorite solution (chlorine bleach)
with 1 gallon of warm water.
2) Wash all parts from step 9 of the cleaning procedure using the sanitizing solution.
3) Rinse all parts thoroughly with clean water.
4) Reassemble in the reverse order of the removal procedure.
5) Turn on the icemaker/ice dispensing bin.
6) Check for proper operation.
B. Maintenance
1. Exterior Panels
To prevent corrosion, wipe occasionally with a clean, soft cloth. Use a damp cloth
containing a neutral cleaner to wipe off oil or dirt build up.
2. Chain
Inspect and oil the chain (2 or 3 drops) annually. Adjust as necessary for 3/8" to 1/2" free
play.
C. Preparing the Ice Dispensing Bin for Long Storage
IMPORTANT
Drain the icemaker and remove all ice from the ice dispensing bin when
shutting off the icemaker/ice dispensing bin for storage. The ice dispensing bin
should be cleaned and wiped dry.
1) Shut off the icemaker. See the "Preparing the Icemaker for Long Storage" instructions
on the icemaker.
2) Turn off the power supply switches for both the icemaker and the ice dispensing bin
after removing all ice.
3) Clean the ice dispensing bin and wipe it dry.