Yamato ULF001C User manual

ULTRA LOW FREEZER
ULF SERIES
MODEL
ULF001C / ULF101C / ULF201C / ULF301C
ULF401C / ULF501C / ULF601C / ULF801C
INSTRUCTION MANUAL
- FIRST EDITION –
•Thank you for purchasing ULF Series Ultra Low Freezer of Yamato
Scientific
•To use this unit properly, read this "Instruction Manual" thoroughly
before using this unit. Keep this instruction manual around this unit
for referring at any time.
WARNING: Carefully read and thoroughly understand the important
warning items described in this manual before using this unit.
Yamato Scientific America Inc.
Santa Clara, CA

CONTENTS
♦SYMBOLS AND STARTING INSTRUCTIONS………………………..
1
● MEANING OF ILLUSTRATED SYMBOLS…………………………………...
1
● STARTING INSTRUCTIONS…………………………………………………..
1
♦UNIT REQUIREMENTS………………………………………………….
2
●PRE-INSTALLATION INFORMATION………………………………………...
2
♦GENERAL SPECIFICATIONS…………………………………………..
3
● TEMPERATURE SPECIFICATIONS………………………………………….
3
● ELECTRICAL SPECIFICATIONS……………………………………………..
3
♦REFRIGERATION SPECIFICATIONS………………………………….
4
♦MAINTENANCE…………………………………………………………...
5
♦UNIT OPERATION………………………………………………………..
6
♦TEMPERATURE CONTROL…………………………………………….
7
♦ALARM OPERATION…………………………………………………….
8
● ALARM SYSTEM………………………………………………………………..
8
● DRY CONTACT RELAY………………………………………………………..
8
♦CONTROL PROGRAMMING……………………………………………
9
● CONTROL KEYS & DISPLAYS………………………………………………..
9
♦CONTROL PROGRAMMING……………………………………………
10
● CONTROL KEYS & DISPLAYS (CONT)……………………………………...
10
● USER PARAMETER MODE…………………………………………………...
10
● PROGRAM PARAMETER MODE…………………………………………….
11
● CALIBRATION PROCEDURE………………………………………………...
12
♦WIRING DIAGRAM……………………………………………………….
13
♦ALARM WIRING DIAGRAM……………………………………………..
14
♦REFRIGERATION FLOW CHART………………………………………
15
♦REPLACEMENT PARTS LIST…………………………………………..
16
♦AFTER SERVICE AND WARRANTY.….….………………...…………
17

Explanation
ILLUSTRATED SYMBOLS
Various symbols are used in this safety manual in order to use the unit without
danger of injury and damage of the unit. A list of problems caused by ignoring
the warnings and improper handling is divided as shown below. Be sure that you
understand the warnings and cautions in this manual before operating the unit.
CAUTION
BLACK WITH YELLOW BACKGROUND
LIGHTNING BOLT
CAUTION, RISK OF ELECTRICAL SHOCK
WARNING
BLACK WITH YELLOW BACKGROUND
EXCLAMATION POINT
CAUTION, REFER TO ACCOMPANYING DOCUMENTS
1. Move the freezer to an indoor location and plug the freezer into an appropriate
outlet with an adequate power supply. Consult your maintenance department for
additional information on the proper electrical configuration for this unit.
2. Once plugged in, the compressor(s) will start to operate and pull down to the
setpoint on the temperature control.
3. Allow the freezer to reach the setpoint temperature. Depending on the size of
the unit, this may take up to 12 hours.
4. Product can now be loaded into the freezer for storage.
1
SYMBOLS AND STARTING INSTRUCTIONS
MEANING OF ILLUSTRATED SYMBOLS
STARTING INSTRUCTIONS

Unit Information
RANGE OF ENVIRONMENTAL CONDITIONS
FOR WHICH THIS EQUIPMENT IS DESIGNED
1. Indoor use.
2. Altitude up to 2000m.
3. Ambient temperatures 15°C to 30°C (60°F TO 85°F )
4. Recommended humidity range of 30% to 90%.
5. Mains supply fluctuations up to -5% to +10% of the nominal voltage.
6. Transient over-voltages typically present on the mains supply
(overvoltage category II). Pollution degree 1.
WARNING
THIS FREEZER IS PROVIDED WITH AN INPUT CIRCUIT
PROTECTIVE DEVICE WHICH SHALL BE MAINTAINED
AND SERVICED BY QUALIFIED PERSONNEL ONLY.
CAUTION
FUSES OR BREAKERS USED INSIDE PROTECTIVE DEVICE
15A OR 20A 250V TIME DELAY.
CAUTION
UNPLUG FREEZER BEFORE ANY TECHNICAL SERVICE IS
PERFORMED ON THE UNIT.
WARNING
DO NOT POSITION EQUIPMENT SO IT IS DIFFICULT TO
DISCONNECT FROM THE POWER SUPPLY.
2
UNIT REQUIREMENTS
PRE-INSTALLATION INFORMATION

Specifications
OPERATIONAL TEMPERATURE RANGE
-40°C TO -85°C
ELECTRICAL PLUG
•Plug the freezer into the proper outlet with an adequate power supply.
•This unit requires a Dedicated Electrical Line.
MODEL VOLTAGE AMPERAGE PLUG
ULF001C
ULF101C
ULF201C
115 VOLTS
60 HERTZ
1 PHASE
15 AMP
DEDICATED LINE
NEMA 5-15
ULF301C
ULF401C
ULF501C
ULF601C
ULF801C
115 VOLTS
60 HERTZ
1 PHASE
20 AMP
DEDICATED LINE
NEMA 5-20
WARNING
ONLY PLUG THIS UNIT INTO THE PROPER OUTLET. DO
NOT ATTEMPT TO MODIFY PLUG IN ANY WAY. IMPROPER
USE OF THE ELECTRICAL PLUG WILL VOID WARRANTY
3
GENERAL SPECIFICATIONS
TEMPERATURE SPECIFICATIONS
ELECTRICAL SPECIFICATIONS

MODEL CU. FT. REFRIGERATION
SYSTEM
HIGH STAGE
REFRIGERANT
LOW STAGE
REFRIGERANT
ULF001C 2 1/3 HP EMBRACO R404A – 14 oz. R170 - 30” to 25 psi
R508B - 140 psi
ULF101C 3 1/3 HP EMBRACO R404A – 15 oz. R170 - 30” to 25 psi
R508B - 140 psi
ULF201C 5 1/3 HP DANFOSS R404A – 16.5 oz. R170 - 30” to 25 psi
R508B - 155 psi
ULF301C 9 1/3 HP DANFOSS R404A – 18 oz. R170 - 30” to 25 psi
R508B - 155 psi
ULF401C 12 1 HP TECUMSEH R404A – 19 oz. R170 - 30” to 20 psi
R508B - 130 psi
ULF501C 14 1 HP TECUMSEH R404A – 19 oz. R170 - 30” to 20 psi
R508B - 130 psi
ULF601C 17 1 HP TECUMSEH R404A – 19 oz. R170 - 30” to 20 psi
R508B - 130 psi
ULF801C 22 1 HP TECUMSEH R404A – 23 oz. R170 - 30” to 20 psi
R508B - 130 psi
4
REFRIGERATION SPECIFICATIONS
REFRIGERATION SPECIFICATIONS

BEFORE PERFORMING MAINTENANCE
To reduce the risk of fire, electric shock or injury to persons using this freezer, read
all instructions and follow basic safety precautions.
CAUTION
DISCONNECT THIS UNIT FROM THE POWER SUPPLY
BEFORE PERFORMING MAINTENANCE ON THE UNIT.
•Wipe down the exterior of the freezer with a soft cloth and spray type polish.
•If frost builds up in the chamber, a bucket and ice-scraper can be used to remove
the ice.
•If excessive ice builds up, the unit can be defrosted (see below).
1. Remove any product in the freezer and store it in a back-up freezer or elsewhere.
2. Unplug the freezer and open the freezer front door / lid.
3. Use a cloth to protect the control from dripping water.
4. Air out the freezer for at least 12 hours, allowing the unit to reach room temperature.
5. Take a rag and wipe up all the excess water in the unit (melted frost).
6. Plug the unit in and set your temperature to the desired setpoint
7. Once the desired temperature is reached, add product back into the unit.
WARNING
IT IS RECOMMENDED TO SLOWLY RE-ADD YOUR
PRODUCT INTO THE FREEZER TO PREVENT AN
EXTREME LOAD ON THE COMPRESSORS, WHICH
COULD SHORTEN FREEZER LIFE EXPECTANCY.
5
PREVENTATIVE MAINTENANCE
MAINTENANCE
CLEANING PROCEDURE
DEFROST PROCEDURE

The automatic starting system is provided on all freezer systems in case of
power failure. If there is an electrical power interruption to the unit and power is
not restored immediately, the unit will automatically start up whenever power is
returned.
AUTOMATIC COMPRESSOR STARTING TIMER
A timer will engage after power is restored to the unit, the low stage will start to
operate and the automatic starting timer will not operate again until power is
disconnected from the unit or the low stage system cycles off on high pressure
control.
WARNING
ALWAYS LEAVE THE REFRIGERATION SWITCH IN ON
POSITION, AS THIS WILL AUTOMATICALLY ACTIVATE
THE AUTOMATIC STARTING SYSTEM.
CAUTION
COVER SCREEN ON BACK OF FREEZER MAY ONLY BE
REMOVED BY AUTHORIZED PERSONNEL ONLY.
FOR CONNECTIONS TO THE EXTERNAL ALARM COVER
SCREEN MUST BE REPLACED BEFORE PUTTING FREEZER
INTO SERVICE.
FAILURE TO REINSTALL COVER COULD RESULT IN
HAZARD.
The high-pressure control is factory set to shut off the low stage system in case
of high pressure. The control is set to cut-out at 298 P.S.I.
The low stage system will automatically restart after a preset time delay.
6
AUTOMATIC STARTING SYSTEM
UNIT OPERATION
HIGH-PRESSURE CONTROL

The temperature control is manually adjustable to the desired temperature in 1°
C increments within the limits of the control range.
TEMPERATURE SET POINT
The control has two displays, the upper display is the actual chamber
temperature and the lower display is the temperature set point. The
temperature set point has been pre-set at the factory.
CHANGING TEMPERATURE SETPOINT
The temperature set point can be changed by simply pressing the “up” arrow to
raise or the “down” arrow to lower the temperature set point.
WARNING
CHANGING THE CONTROL PARAMETERS OUTSIDE OF
THE MANUFACTURE RECOMMENDED RANGE, COULD
SHORTEN THE LIFE-SPAN OF YOUR EQUIPMENT; OR
CAUSE ISSUES RESULTING IN MECHANICAL FAILURE.
WARNING
USE ONLY THE “UP” AND “DOWN” KEYS WHEN MAKING
CHANGES ON THIS CONTROL. WARRANTY WILL BE VOID
IF USED IN ANY OTHER WAY.
CONTACT FACTORY FOR ALL OTHER ADJUSTMENTS IN
SETTINGS.
7
FDC 4000 CONTROL
TEMPERATURE CONTROL
TEMP
SET
-888
-888

Alarm will automatically activate when the freezer reaches set point or 8 hours
after the unit has been first plugged in.
The alarm will not sound again until the temperature varies 12°C (20°F) from
the temperature control set point.
Please note that the alarm will use battery power to sound if there is a power
outage to the freezer.
ALARM SYSTEM BATTERY REPLACEMENT
•Rechargeable batteries should be changed approximately every three years
with lead acid rechargeable 1.2 Ah min, model PS-640F1 or equivalent.
WARNING
ALARM SYSTEM SHOULD BE TESTED EVERY 30 DAYS.
The dry contact relay is a terminal strip located on the back of the freezer.
RATING OF THIS CONNECTION:
2A 125 VAC
2A 30 VDC
RED – NORMALLY CLOSED
WHITE – COMMON
BLUE – NORMALLY OPEN
WARNING
IF IT IS NECESSARY TO REMOVE METAL COVER SCREEN
ON BACK OF FREEZER TO MAKE CONNECTIONS TO
ALARM RELAY, COVER MUST BE REPLACED BEFORE
FREEZER IS PUT INTO OPERATION
8
ALARM SYSTEM
ALARM OPERATION
DRY CONTACT RELAY

The FDC-4000 controller is programmed by using three keys on the front
panel. The available key functions are listed in following table. Note: Only use
the tip of your finger to depress the keys. Using a rigid object such as a pen,
screwdriver or even your finger-nail may permanently damage the keypad.
TOUCH KEYS
FUNCTION
DESCRIPTION
Up Key
Press and release to increase the control set-point (while in normal control
mode) or to change lower display program parameter (while in User Menu or
Factory Mode). Press and hold to accelerate increment speed.
Down Key
Press and release to decrease the control set-point (while in normal control
mode) or to change lower display program parameter (while in User Menu or
Factory Mode). Press and hold to accelerate decrement speed.
Pressing
key while in
normal control
mode
Scroll Key
Press and hold for at least 2 seconds and release (while in normal control
mode) to access operator level parameters. Press and release to cycle
through all user parameters. Press and hold for 2 seconds and release to
silence audible alarm under normal power or on battery power. While unit is in
an alarm condition, the external alarm relay contacts will remain energized
until the alarm condition no longer exists. Press and hold to display chamber
temperature while the controller is on battery power. Chamber temperature will
be displayed until key is released. Alarm contact will remain energized while
operating on battery power.
Press both keys
simultaneously
Current Power
Reading
Displays current AC power (i.e. 110VAC) as long as keys are pressed. If
power is 110VAC or 220VAC, unit will display 110. Mode is only active during
normal control mode (when top display = PV, Lower display = SP). N/A on
battery power.
Press both keys
simultaneously
Alarm Test
Energize audible alarm and alarm relay output as long as keys are pressed.
Mode is only active during normal control mode (when top display = PV,
Lower display = SP). N/A on battery power.
Note: When the controller is displaying temperature in normal control mode,
press/release or press/hold the up/down keys to change the set-point value.
This set-point mode does not apply to power off modes.
9
CONTROL KEYS & DISPLAYS
CONTROL PROGRAMMING
TEMP
SET
-888
-888

A
A
E
E
I
I
N
n
S
S
X
B
b
F
F
J
J
O
o
T
t
Y
y
C
C
G
G
K
Y
P
P
U
u
Z
C
c
H
H
L
L
Q V
u
?
?
D
d
h
h
M
N
R
r
W =
=
:Confused Character
The upper display is used to show the process value or menu prompt. The
lower display is used to show the set-point value or menu value. Both displays
are blank while on battery power unless the button is pressed to
display the process value. Note: When operating on battery power, the battery
status LED (labeled “BAT” on the front panel) will be lit.
To enter the USER parameter mode, hold the scroll key for 2 seconds and
release.
To enter the user parameter mode, hold the Scroll Button
for 2 seconds and release.
To make changes in the user parameter mode, press the up or
down arrows.
To exit the user parameter mode, press and release the Scroll
Button.
10
CONTROL KEYS & DISPLAYS CONT.
CONTROL PROGRAMMING
USER PARAMETER MODE

To enter the PROGRAM parameter mode, hold the scroll key until the screen
changes to ‘SPL’, then release. This will take approximately 15 seconds.
To page through Parameters, Press and Release the scroll key
Please read the superscript instructions (bottom of page) for
each Parameter value.
THE FOLLOWING VALUES WERE SET WHEN THIS UNIT WAS SHIPPED
PARAMETERS DESCRIPTION °F °C ON OFF
SPL
3
Lower Setpoint -148 -100 X
SPH
3
Upper Setpoint -40 -40 X
Al
2
Alarm X
INV
1
Temperature Scale °F °C X
SHF
1
Calibration X
ASP
1
Alarm Differential 22 12 X
AHY
3,1
Alarm Hysteresis 1.8 1.0 X
OHY
3,1
Output Hysteresis 3.6 2.0 X
RB
1
Alarm Delay in Minutes 30 X
DoR
4
Door Alarm X
SP
2
Setpoint X
IN2
4
N / A N / A
TO EXIT TAP SCROLL KEY REPEATEDLY UNTIL TEMPERATURE/SETPOINT SCREEN
APPEARS
1) This parameter has been turned “on” by pressing either arrow key then make your changes in
“user” mode.
THE VALUES TO BE CHANGED ARE DISPLAYED IN USER MODE ONLY, except SPL and SPH.
2) No values to change, either enable or disable by pressing the or arrow buttons.
3) Any changes made here without expressed permission from the manufacturer will VOID the
warranty of the unit.
4) The parameter “DoR” and IN2 cannot be utilized at this time.
11
PROGRAM PARAMETER MODE
CONTROL PROGRAMMING

To calibrate the control, the calibration parameter must be turned on.
To enter the CALIBRATION mode, hold the scroll key until the screen changes
to ‘SPL’, then release. This will take approximately 15 seconds.
Press and Release the scroll key to page through Parameters.
Once value SHF is shown, Use the or arrow keys to change
value to ON.
PARAMETERS DESCRIPTION °F °C ON OFF
SPL
3
Lower Setpoint
SPH
3
Upper Setpoint
Al
2
Alarm
INV
1
Temperature Scale
SHF
1
Calibration X
•Hold SCROLL KEY for 2 seconds and release. SHF should
appear in the top display and the current calibration value should
appear in the bottom display.
•The value can now be changed with UP or DOWN arrow keys.
•Once finished, press and release the SCROLL KEY to return to
the main screen.
12
CALIBRATION PROCEDURE
CONTROL CALIBRATION
ONCE THE CALIBRATION PARAMETER HAS BEEN TURNED ON

13
WIRING DIAGRAM

14
ALARM WIRING DIAGRAM

15
REFRIGERATION FLOW CHART

COMPRESSOR MODEL
HP
VOLTAGE
HERTZ
PHASE
PART #
TECUMSEH AJB2433ZXA
1
115
50/60
1
AJB24-115
TECUMSEH AJB2433ZXD
1
208/220/230
50/60
1
AJB24-208
EMBRACO FFI12HBX
1/
3
115
50/60
1
FF12-115
DANFOSS SC15FTX
1/
3
115
50/60
1
SC15-115
DANFOSS SC18FTX
1/
2
208/220/230
50/60
1
SC15-208
TEMPERATURE CONTROL PARTS
PART #
FDC 4000
4000
FDC nCOMPASS
nCOMPASS
CASCADE ELECTRICAL PARTS
PART #
Heater Harness No. H-200
217-VOLTAGE
Refrigeration Switch No. 2X464
TOGGLE
Condenser Fan Motor No. GE-5411 - 115/60/1
500-115
Condenser Fan Motor No. GE-5421 - 230/50-60/1
500-VOLTAGE
Electrical Cord No. 8-3 (Please Specify Voltage)
PWRCRD-VOLTAGE
Control Board No. CECB2TUV (Please Specify Voltage)
231-VOLTAGE
REFRIGERATION HIGH STAGE PARTS
PART #
Air Cooled Condenser No. 3CZ0602B
254
Drier No. C-053-S
256H
Capillary Tube
HS-17, HS-20
Oil Separator, Temprite Series 900 (If Applicable)
900
REFRIGERATION LOW STAGE PARTS
PART #
Pressure Control No. 20PS01-0039
259
Receiver Condenser
RCN-LS
Drier No. CO-52S-S
256L
Capillary Tube
LS-28, LS-31
Oil Separator, Temprite Series 900 (If Applicable)
900
HARDWARE PARTS
PART #
Latch No. METL-L1-99
REX37L1-3
Chest Hinge
59-928M
Upright Hinge No. Polar 109-LH
59-928U
Cabinet Gasket
NX504B1
Lid or Door Gasket
PSOS
Grill No. 650H
356F, 356S
Sub-Lids (Must have Model Number)
SL-MODEL NUMBER
Inner Door (Must have Model & Serial Number)
357-MODEL NUMBER-SERIAL NUMBER
Clips & Rollers for Inner Doors (Quantity 10 minimum)
405
Shelves for Freezer (Must have Model Number)
4015-MODEL NUMBER
16
REPLACEMENT PARTS LIST

Yamato Scientific America warrants, from the date of shipment from warehouse in
Cincinnati, Ohio, U.S.A., for a period of one (1) year. All products, parts and materials shall
be free of defects in material and workmanship under normal use consistent with the
product instructions. This product warranty does not apply to products purchased from
unauthorized resellers/distributors.
Yamato reserves the right to inspect the product under claim before having an obligation
to repair or replace the defective unit covered by this warranty. All costs of shipping to
Yamato for inspection shall be borne solely by the purchaser. Products repaired or
replaced under the terms of the warranty may be refurbished or new product will be
provided at the discretion of Yamato.
Warranty Conditions
This warranty shall have force and effect only if all items are used with proper circuits,
voltages, and frequencies and the operation thereof is in accordance with instructions
furnished by the manufacturer.
This warranty shall not extend to such parts as refrigerants, finishes, belts, and dryers.
This warranty shall not extend to ordinary wear and tear, or ordinary refrigeration service
and refrigeration adjustments, unless specifically included in the equipment purchase
contract.
This warranty does not apply to equipment or parts which fail because of abuse, accident,
alteration, misuse, erosion, improper installation, or improper replacement of a repaired
item.
The buyer assumes all risks for results obtained from these products, whether used alone
or in combination with other items. It is expressly understood that we are not responsible
and will not be held liable for damage and/or injury caused using our products.
17
AFTER SERVICE AND WARRANTY
WARRANTY POLICY

Product Return Policy
If you are not satisfied with your purchase and wish to make a return, contact our customer
service to inquire about a Return of Merchandise Authorization Number (RMA).
Merchandise returned without an RMA number will not be accepted and will be returned
to the sender. Return requests must be made within 15 days of the customer’s receipt of
the merchandise.
All returns must be unused and in unopened original packaging and include all items and
manuals originally shipped.
The purchaser is responsible for the shipping cost of return shipment. Insurance on the
return shipment is required. Damage or loss of merchandise during shipping is the
responsibility of the sender. Returned shipments that arrive damaged will be returned back
to the sender, and credit will not be rendered.
All returned products, parts and materials are subject to a 25% restocking fee. Shipping
and handling cost are non-refundable. All retrofitted, customized and special order item
sales are final and non-returnable.
In Case of Request for Repair
If the failure occurs, stop the operation, turn OFF the power switch, and unplug the power
plug. Please contact the sales agency that this unit was purchased, or Yamato Scientific's
sales office.
< Check following items before contact >
◆Model Name of Product
◆Serial Number
◆Purchase Date
◆Issue (as detailed as possible)
Responsibility
Please follow instructions in this document when using this unit. Yamato Scientific has no
responsibility for accidents or breakdown of device due to failure to comply. Never conduct
what this document forbids as unexpected accidents or breakdown may result.
Yamato Scientific America Inc.
925 Walsh Ave, Santa Clara, CA 95050
Tel: [phone]
http://www.yamato-usa.com
For customer service:
Email: [e-mail]
For technical support:
Email: [e-mail]
18
WARRANTY POLICY CONTINUED