Hoshizaki TempGuard PTR1SSB Series User manual

Hoshizaki
“A Superior Degree
of Reliability”
www.hoshizaki.com
Models
PTR1SSB-xxxx
TempGuard Pass-Thru Refrigerator
Hoshizaki America, Inc.
Issued: 9-19-2002
Revised: 10-30-2006
INSTRUCTION MANUAL
™
®

2
IMPORTANT
Only qualified service technicians should attempt to install, service or maintain
this unit. No installation, service or maintenance should be undertaken until the
technician has thoroughly read this Instruction Manual. Likewise, the owner/
manager should not proceed to operate the unit until the installer has instructed
them on its proper operation.
HOSHIZAKI provides this manual primarily to assist qualified service technicians in the
installation, maintenance and service of the unit.
Should the reader have any questions or concerns which have not been satisfactorily
addressed, please call, write or send an e-mail message 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]
E-mail: techsuppor[email protected]
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 unit is installed and
operated. Only qualified service technicians should install, service and maintain the unit.
This manual should be made available to the technician prior to installation, maintenance
or service.
• Keep this manual with the unit for later reference.
CONTENTS
I. Specifications ...................................................................................................................... 4
A. Nameplate Rating ......................................................................................................... 4
B. Dimensions ................................................................................................................... 5
II. Installation Instructions ...................................................................................................... 6
A. Location ........................................................................................................................ 6
B. Checks Before Installation ............................................................................................. 6
C. How to Open the Front Panel ........................................................................................ 7
D. Setup ............................................................................................................................. 7
E. Electrical Connection .................................................................................................... 7
F. Door Reversing (Stainless Steel Doors Only) ................................................................ 7
G. Final Checklist .............................................................................................................. 8
III. Operating Instructions ....................................................................................................... 9
A. Startup .......................................................................................................................... 9
B. Cabinet Temperature ..................................................................................................... 9
1. Current Temperature Display ................................................................................... 9
2. Temperature Setpoint .............................................................................................. 9
C. Defrost ........................................................................................................................ 10
D. Temperature Display Scale (°F or °C) ......................................................................... 10
E. Perimeter Frame Heater .............................................................................................. 10
IV. Cleaning and Maintenance Instructions .......................................................................... 11
A. Cleaning ...................................................................................................................... 11
1. Exterior .................................................................................................................. 11
2. Interior ................................................................................................................... 11
3. Door Gaskets ......................................................................................................... 11
4. Shelves .................................................................................................................. 11
5. Glass Door ............................................................................................................. 11
B. Maintenance ................................................................................................................ 11
1. Air Filter ................................................................................................................. 11
2. Condenser ............................................................................................................. 11
V. Alarm Signals .................................................................................................................. 12

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I. Specifications
A. Nameplate Rating
See the nameplate for electrical and refrigeration specifications. The nameplate is located
on the right side wall of the cabinet interior.
We reserve the right to make specification and design changes without prior notice.
MODEL NAME PTR1SSB-xxxx
SERIAL NUMBER
AC SUPPLY VOLTAGE 115/60/1
AMPERES 12.0
DESIGN PRESSURE-HI (PSI) 450
DESIGN PRESSURE-LO (PSI) 250
REFRIGERANT TYPE 404A
REFRIGERANT AMOUNT (OZ) 15.5
REFRIGERATOR
MOTOR-COMPRESSOR THERMALLY PROTECTED
Hoshizaki America, Inc.
Griffin, GA
� � � ������ � �www.hoshizaki.com
LISTED
COMMERCIAL
REFRIGERATOR
AND/OR FREEZER
4F73

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B. Dimensions
PTR1SSB-xxxx
Total Refrigerated
Volume Total Shelf Space Depth with Doors Open
674 l (23.8 ft3) 1.26 m2 (13.6 ft2) • Glass on both sides – 2,146.2 mm (84.7 in.)
• Glass on one side and solid on the other – 2,161.6 mm (85.3 in.)
• Solid on both sides – 2,177 mm (85.9 in.)
NOTES:
1) Units: mm (in.)
2) Legs have 25.4 mm (1 in.) height adjustment

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II. Installation Instructions
A. Location
CAUTION
This unit is not intended for outdoor use. The air temperature should be within
a +45°F to +100°F (+7°C to +38°C) range. Extended periods of operation at
temperatures exceeding these limitations may cause unsatisfactory results.
For best operating results:
• The machine should be on a flat, level and solid foundation.
• The unit should not be located in a corrosive environment.
• The unit should not be near ovens, grills or other high heat producing equipment.
• The unit should be a minimum of 4 inches (102 mm) from side walls. More clearance may
be necessary depending on the door combination of the unit.
• A minimum of 10 inches (254 mm) overhead clearance should be provided for proper
ventilation.
• Position unit for convenient usage of front and rear doors.
B. Checks Before Installation
IMPORTANT
Refer to the nameplate for electrical specifications. The nameplate is located
on the right side wall of the cabinet interior. We reserve the right to make
specification and design changes without prior notice.
1) All tape, packing material and shipping cartons should be removed from the machine
prior to installation. The equipment should be inspected for any damage which may
have occurred during shipment. Concealed damage claims must be filed with the
carrier.
2) Visually check that the refrigerant lines do not rub or touch other lines or surfaces and
that the fan blades turn freely.
3) Check that the compressor is snug on all mounting pads.
4) Remove all accessory containers before discarding the packing materials. Dispose of all
packing materials in a proper and environmentally responsible manner.
5) To remove the unit from the skid:
(a) Move as close to the final location as possible.
(b) Remove the four 5/8 in. bolts that secure the cabinet to the skid.
(c) Block the cabinet securely, at a height of 8 inches (203 mm) off the floor. Do not lay
the unit down.
(d) Attach the adjustable legs (or optional casters) to the bottom of the cabinet.

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PULL FORWARD FRONT PANEL
LOCKING COLLAR
ROTATE
PUSH UP
1
2
3
C. How to Open the Front Panel
1) Push the front panel up approximately 1/2 inch
(13 mm) until it is disengaged from the locking
collars and stops.
2) Rotate the panel up and away from the face of
the unit until it stops once more.
3) Pull the front panel forward until the hinge
assembly is in the locked position.
D. Setup
1) Position the unit in the selected location. Level the unit in both the front-to-back and
side-to-side directions. Turn the bottom portion of the legs to lower or raise them.
2) Install the shelves using the shelf support clips provided in the accessory pack.
Indexing holes are provided on the pilasters in evenly spaced intervals to assist you in
positioning the support clips at the same height.
E. Electrical Connection
Cord-connected units should only be plugged into a 115 volt ±10%, 60 Hz. circuit with a
national and local electrical code approved, grounded wall receptacle. An independent
circuit with its own circuit breaker (HACR type) or fuse (LP-CC type) should be provided.
Refer to the nameplate for the proper electrical specifications.
WARNING
Failure to use a proper breaker or fuse can result in tripped breaker, blown
fuses or damage to existing wiring.
F. Door Reversing (Stainless Steel Doors Only)
This unit is provided with a cabinet design which, after being delivered to the installation
location, permits changing the door swing of stainless steel doors from left to right or
right to left. To change the door swing, special accessories are required. If installed
improperly, the doors will not close and seal correctly. Contact HOSHIZAKI Technical
Support or your local HOSHIZAKI distributor if door reversing is desired.

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G. Final Checklist
1) Is the unit level?
2) Is the unit located in a site where the ambient temperature will be within the +45°F to
+100°F (+7°C to +38°C) range all year around?
3) Is there at least 10 inches (254 mm) overhead clearance for proper ventilation?
4) Have all shipping cartons, tapes and packing materials been removed from the unit?
5) Has the power supply been checked or tested against the nameplate rating?
6) Have the shelves been properly installed?
7) Has the unit been checked for shipping damage?
8) Has the warranty tag been filled out and forwarded to the factory for warranty
registration?

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III. Operating Instructions
A. Startup
Open the front panel for access to the power switch—located on the front of the control
box—and turn the switch on. Allow the unit to pull down prior to loading it with food
products.
IMPORTANT
At startup, there is a 2 1/2 minute normal delay before the compressor starts.
B. Cabinet Temperature
1. Current Temperature Display
• The cabinet temperature is displayed on the control panel. The display default is °F, but
it can be changed to read °C. To change, see "D. Temperature Display Scale (°F or °C)".
• The cabinet temperature is updated every 20 seconds.
2. Temperature Setpoint
The temperature setpoint is the value for the average cabinet temperature. For example,
setpoint = 36°F, compressor on at 39°F, compressor off at 33°F. If necessary, adjust the
setpoint temperature as follows:
1) Press and hold the up/down arrows simultaneously for 3 seconds. The current setpoint
temperature will be displayed.
2) To change the setpoint, press the up/down arrows until the desired value is displayed.
The cabinet temperature is adjustable between 36°F and 50°F (2.2°C and 10°C). The
factory default is 36°F (2.2°C).
3) Press "ENTER" to set the value and view the next setting. If no change in the value
is desired, press "ENTER", and the next setting will be displayed. At the end of the
sequence, press "ENTER", and the unit will return to normal display mode.
Important Note: For the change to take effect, you must cycle through the menu until
you return to the normal display.

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C. Defrost
This unit uses an off-cycle defrost. When a sensor in the evaporator coil reaches the
initiation setpoint, the unit enters defrost. When the sensor reaches the termination
setpoint, the unit ends defrost.
Units with a control board of revision level R23 or later (board revision level can be seen
on display at power up) also feature an adjustable time-initiated defrost along with the
normal temperature-initiated defrost.
The time-initiated defrost is factory set for normal conditions. Before changing this
setting, contact the HOSHIZAKI Technical Support Department for recommendations. If
necessary, adjust the time-initiated defrost frequency as follows:
1) Press and hold the up/down arrows simultaneously for 3 seconds. Press "ENTER" until
the dF frequency is displayed.
2) To change the time-initiated defrost frequency, press the up/down arrows until the
desired value is displayed. The defrost frequency is adjustable between 0 and 12
defrosts per 24 hours. The factory default is 6.
3) Press "ENTER" to set the value and view the next setting. If no change in the value is
desired, press "ENTER" and the unit will return to normal display mode.
Important Note: For the change to take effect, you must cycle through the menu until
you return to the normal display.
Note: The change in the defrost setting will take effect after the next defrost based on
the previous setting. If it is desired that this change in interval timing take effect
immediately, turn the unit off and back on. The next time-initiated defrost will take
effect "x" hours after power is resupplied. For example, if the setting is dF 6, x=4
and the next defrost will take place 4 hours from the time that power is applied.
D. Temperature Display Scale (°F or °C)
To change the display scale, follow the steps below.
1) Press and hold the up/down arrows simultaneously for 3 seconds. Press "ENTER" until
the F or C temperature display scale is displayed.
2) To change the temperature display, press the up/down arrows until the desired scale is
displayed. The factory default is F.
3) Press "ENTER" to set the value and return to normal display mode.
Important Note: For the change to take effect, you must return to the normal display.
E. Perimeter Frame Heater
This unit is equipped with a perimeter frame heater. This prevents the formation of
condensate on the front frame of the unit under high humidity conditions. If operating the
unit under conditions where condensate will not form, these heaters may be turned off
using the switch on the control box.