_______
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Note：Kaltis° reserves the right to modify any parts of
this manual without prior notice.
1. No part of this manual may be reproduced in any form, or translated into other
languages, without the expressed written permission of Kaltis®.
2. Contact Kaltis® if any points in this is manual are unclear, or if
there are any inaccuracies.
2
KALTIS®
… The Future Has A Name!
Thank you for choosing Kaltis®. You have purchased one of the
finest, state of the art ultra low freezers available.
Kaltis® is a manufacturer of refrigeration products, with a 25 year
track record of product excellence. We specialize in a range of state
of the art, chest and upright, Ultra Low Temperature Freezers,
which offer some unique operating features, long term reliability
and minimal maintenance costs..
We focus on innovation and quality, utilizing the latest technologies
to guarantee reliable, environmentally friendly products.
Our freezers tolerate voltage fluctuations, high ambient
temperatures and heavy traffic in and out of the freezer and are
designed to perform in demanding environments.
Both low and high cascade compressors feature a high compression
rate, low noise and vibration, ensuring ultra quiet running. The
compressors high efficiency: horsepower ratio provides the
maximum gas displacement / hp, ensuring maximum refrigeration
efficiency at low energy consumption. Our compressors are
industrial grade units which, like the refrigerants, are available all
over the world, reducing your dependency on proprietary products,
reducing your maintenance costs.
Our freezers comply with CE and UL safety and performance
standards and only CFC-free refrigerants are used.
Our freezers are backed by a full range of accessories and inventory
systems to suite all your requirements.
3
1. Safety Precautions
It is imperative that users comply with this manual as it contains important
safety advice.
Items and procedures are described so that you can use this product correctly and
safely. Following these precautions will prevent possible injury to users.
Precautions are illustrated in the following way:
WARNING
Failure to observe WARNING signs could result in a hazard to personnel,
possibly resulting in serious injury or death.
CAUTION
Failure to observe CAUTION signs could result in injury to personnel and
damage to the product and to property.
Please keep this manual in a place accessible to users of this product.
Label on the unit
This label is found on the cover of the box housing high
voltage electrical components.
The cover should only be removed by a qualified
engineer or service personnel.
4
WARNING
z Use this product only in the way described in the product literature and
the manual. Before using the product, verify that this product is suitable for
its intended use.
z Do not modify system components. Before use, confirm that the product
has not been altered in any way.
z Your unit must be properly grounded in conformity with national or
local electrical codes. Never connect the unit to overloaded power sources.
z Do not use the unit outdoors. Current leakage or electric shock may result
if the unit is exposed to water.
z Only qualified engineers or service personnel shouold install the unit.
The installation by unqualified personnel may cause electric shock or fire.
z Install the unit on a sturdy floor. If the floor is not strong enough, level, or
the installation site is not adequate, may result in injury from the unit
falling or tipping over.
z Never install the unit in a humid place or a place where is likely to be
splashed by water. Deterioration of insulation may result which could
cause current leakage or electric shock.
z Never install the unit in a flammable or volatile location. This may cause
explosion or fire.
z Never install the unit where acid or corrosive gases are present as
corrosion may cause current leakage or electric shock.
z Never store volatile or flammable substances in this unit. This may cause
explosion or fire.
z Never store corrosive substances in this unit. This may lead to damage to
the inner components or electric parts.
z Disconnect the power source to the unit prior to any repair or
maintenances in order to prevent electric shock or other injury.
z Make sure not to inhale or consume medication or aerosols in close
proximity to the unit during maintenance. This may harmful to your health.
z Never slash water directly to the unit. This may cause electric shock or
short circuit.
z Never disassemble, repair, or modify the unit yourself. Any such work
carried out by unqualified personnel may result in fire or injury due to
malfunction.
5
CAUTION
z Connect the unit to a power source as printed on the data plate located
on the lower right side of the unit. Use of any other voltage or frequency
other than that on the rating label may caus damage to the unit, fire or
electric shock.
z When removing the plug from the power supply outlet, grip the power
supply plug, not the cord. Pulling the cord may result in electric shock or
short circuit.
z Do not damage or break the power supply plug or cord. Do not use the
power supply plug if its cord is loose. This may cause fire or electric shock.
z Do not touch any electrical parts such as the power supply plug or any
switches with a wet hand. This may cause electric shock.
z Put on dry gloves when you remove frozen items from the freezer.
Handing frozen contents or the inside walls with naked hand may cause
frostbite.
z Do not defrost the inside walls with a knife or any sharp object. There
are cooling pipes behind the walls. Be careful not to damage these pipes.
Do not make holes in the cabinet walls to install attachments.
z Checks the filter mentioned in this manual and clean it when necessary. A
dirty filter may cause temperature fluctuations, or total product failure.
z Disconnect the power supply plug before moving the unit. Take care not
to damage the cord. A damaged cord may cause electric shock or fire.
z Do net tilt the unit while moving it.
z Disconnect the power plug when the unit is not used for a long time.
6
2. Usage Precautions
1. Do not defrost the inside walls with a knife or any sharp object.. The
cooling pipes run behind the cabinet walls. Be careful not to damage
the pipes because this could cause breakdown. Do not make holes in
the cabinet walls to installation attachments.
2. Frost will accumulate on the inside walls of the freezer during normal
use. Excess frost may make the internal doors difficult to open..
Remove the frost with a spatula, or a similar tool. Frost can be wiped
off with a clean, dry cloth.
3. An access port for the measuring cable in the case is provided on the
back wall of the freezer. Be sure to replace the cap and heat insulator
after removing the cable or the inside temperature may not be reached
and frost may accumulate outside the port.
4. In case of high ambient temperatures, the cabinet front may heat up
after the freezer starts to operate for the first time. This is normal and
does not suggest a malfunction. It is caused by hot gas piped around
the unit to prevent frost or ice from adhering to the cabinet.
7
3. General Recommendations
The refrigeration system is designed to maintain ultra-low temperatures with safety in
a +32oC ambient environments, only when the freezer is used for its intended purpose
( storage).
CAUTION!
This unit is not a “rapid-freeze” device. Freezing large quantities or liquid, or
high-water content items will temporarily increase the chamber temperature
and will cause the compressors to operate for a prolonged period of time.
Improper use of the freezer may jeopardize safety or cause undue stress or
damage to the compressors.
Avoid opening the door for extended time periods because cold chamber air will
rapidly escape. Room air, which is higher in humidity, replacing chamber air may
cause rapid frost build-up in the chamber.
3.1 Environmental Conditions
This equipment is designed to operate in following conditions:
1. Indoor use;
2. Ambient temperature between 15°C and 32oC;
3. Main supply voltage fluctuation not to exceed +10% to -10% of normal
voltage.
Initial Loading
When loading the unit with “pre-frozen” materials, the operating temperature set point
should not be set lower than the temperature of the “pre-frozen” material. Allow the
unit to operate at the set point for eight hours. The set point may than be lowered in
increments no greater than 10oC. Allow a stabilizing period of eight hours for every
ten degrees, until the desired set point is achieved.
CAUTION!
Failure to follow these procedures, or overloading the unit, may cause
excessive stress on the compressors any jeopardize user safety.
8
4. Pre-Installation
On delivery, unpack the unit and check the cabinet exterior for signs of damage.
CAUTION!
Do not discard the internal lids from chest-style units. These lids are
necessary to maintain the correct temperature, moisture control, and general
operational efficiency.
5. Installation
Do not deviate from the electric and temperature ratings printed on the data plate
located on the rear, lower right side of the unit.
CAUTION!
Incorrect operation of the equipment could result in potentially dangerous
conditions. To avoid hazards and minimize risk, follow all instructions and
operate the unit within the limits stated on the data plate.
5.1 Positioning
Install the unit on a vibration free, level floor, with a minimum of fifteen centimeters
of space on the sides, rear, and top. Refer to Section 5.3 for instructions on leveling
cabinets. Allow enough clearance so that door or lid can open at least 90 degrees.
Do not position the equipment in direct sunlight or near sources of heat such as
diffusers, radiators etc. The ambient temperature range at the site must be 15°C to
32oC.
WARNING!
Install the unit on a sturdy floor.
WARNING!
Never install the unit in a flammable or volatile location. This may
result in fire or explosion.
Never install the unit where acid or corrosive gases are present.
Current leakage or electric shock may result due to corrosion.
9
WARNING!
Do not use outdoors. Current leakage or electric shock may result if
the unit is exposed to water.
Never install the unit in an excessively humid environment. or where
there is a high risk of being splashed. by water. Deterioration of the
insulation may result which could cause current leakage or electric
shock.
CAUTION!
To allow for proper air flow, a minimum of fifteen centimeters clearance is
required behind the freezer.
5.2 Wiring
CAUTION!
Connect the equipment to the correct power source. Incorrect voltage can
result in damage to the equipment.
CAUTION!
For personal safety and trouble-free operation, the unit must be properly
grounded. Failure to ground the equipment may cause personal injury or
damage to the equipment. If the power supply outlet is not grounded, it is
necessary to install a ground from the ground screw located on the lower
right rear side of the unit by qualified engineers.
If possible, it is preferable to connect the freezer to a dedicated (separate) power
supply.. Each freezer is equipped with a service cord and plug designed to connect it
to a power outlet which it delivers the correct voltage. Supply voltage must within
+10% to -10% of the freezer’s rated voltage.
CAUTION!
Never cut or remove the grounding prong from the service cord plug. If the
prong is removed, the freezer will not be properly grounded.
10
5.3 Leveling
The unit must be level: both front to back and side to side.
To level chest models, leave the casters in place and shim the wheel(s) with strips of
sheet metal cut wider than the caster.
Upright models have adjustable leveling feet located adjacent to the front casters.
Extend the leveling feet by rotating them counterclockwise. Ensure the unit is100%
level.
5.4 Door Operation (Upright Models)
5.4.1 Opening the Door
1. Remove the padlock (Not supplied with the unit)..
2. Grasp the latch handle (preferably with your left hand) and pull it toward to you
until the latch disengages from the track.
3. Keep pulling by the latch handle, or the integrated handle, to open the main door.
5.4.2 Closing the Door
Note that the latch does not self-engaged automatically when you close the door.
You must first push the latch to the open position.
1. Grasp the latch handle (preferably with your left hand) and pull it toward you,
rotating the latch to the open position.
2. Move the freezer door to the closing position and gently push the handle away
from you, making sure that the latch engages fully with the track.
CAUTION!
Closing the door without ensuring that the latch is fully engaged with the
track could result in damage to the door.
11
6. Operation
6.1 Prime Series Control Panel: Features
Figure 1. Prime Series Control Panel with Optional Backup System
Before using the freezer, familiarize yourself with the freezer controls.
6.1.1 Control Keys
6.1.1.1 On /Off
Press to start or stop the unit. The indicator lights when the freezer is
in “On “. Press and enter password （Follow sequence ） to
start or stop the freezer.
6.1.1.2 Alarm Mute
Press to silence the alarm. The alarm indicator will light. If the failure
lasts more than five minutes, the alarm will sound again.
6.1.1.3 Alarm Test
Press to test the alarm.
6.1.1.4 Alarm Mode Switch
Press these keys to sequentially scroll between cold alarm, warm
alarm, and control temperature.
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6.1.1.5 Temperature Increment and Decrement
Use these keys to increase or decrease the temperature value.
6.1.1.6 Enter/ Escape
After entering the password, press the key to return to setting mode.
After setting, press to return to monitoring mode.
6.1.2 Indicators
6.1.2.1 Operation Indicator
The indicator lights when the freezer is operating.
6.1.2.2 Alarm Indicator
The indicator lights when an alarm is triggered.
6.1.2.3 Temperature Failure Indicator
The indicator lights when the freezer temperature deviates from either
above or below the set alarm temperatures.
6.1.2.4 Door Open Indicator
The indicator lights when the main door is opened, or is not properly
closed.
6.1.2.5 Compressor Protection Indicator
The indicator lights when the compressor has gone into a reduced
operating state.
6.1.2.6 Ambient Temperature Indicator
The indicator lights when the ambient temperature has exceeded the
upper limit of the recommended operating range.
6.1.2.7 Heat Exhaust Indicator
The indicator lights when the heat exhaust system is not functioning
properly.
6.1.2.8 Clean Filter Indicator
The indicator lights when the condenser filter is dirty.
6.1.2.9 Power Failure Indicator
The indicator lights when there is a power failure.
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6.1.2.10 Fuse Indicator
The indicator lights when the surge protector on the main electric
panel has blown due to a power surge.
6.1.2.11 Voltage Failure Indicator
The indicator lights when the incoming line voltage is above or below
the voltage regulator operating range.
6.1.2.12 Alarm Battery Low Indicator
The indicator lights when the alarm battery charge is low.
The following indicators are active only when the freezer is equipped with the
optional backup system.
6.1.2.13 Backup System Supply Indicator
The indicator lights when the backup system is operating.
6.1.2.14 Backup System Condition Indicator
The indicator lights when the CO2 or LN2 back-up cylinders are
empty.
6.1.2.15 Backup System Battery Indicator
The indicator lights when the backup system battery charge is low.
14
6.2 Merit Series Control Panel: Features
Figure 2. Merit Series Control Panel with Optional Backup System
Before using the freezer, familiarize yourself with the freezer controls.
6.2.1 Control Keys
6.2.1.1 On /Off
Press to start or stop the unit. The indicator lights when the freezer is
in “On “. Press and enter password （Follow sequence ） to
start or stop the freezer.
6.1.1.2 Alarm Mute
Press to silence the alarm. The alarm indicator will light. If the failure
lasts more than five minutes, the alarm will sound again.
6.1.1.3 Alarm Test
Press to test the alarm.
6.2.1.4 Alarm Mode Switch
Press these keys sequentially to switch between cold alarm, warm
alarm, and control temperature.
15
6.2.1.5 Temperature Increment and Decrement
Use these keys to increase or decrease the temperature value.
6.2.1.6 Enter/ Escape
After entering the password press the key to return to setting mode.
After setting, press to return to monitoring mode.
6.2.2 Indicators
6.2.2.1 Operation Indicator
The indicator lights when the freezer is operating.
6.2.2.2 Alarm Indicator
The indicator lights when an alarm is triggered.
16
6.3 Start Up
Refer to Section 6.1 and to Figure 1 for the following procedures.
6.3.1 Turning the Power On
1. Plug the freezer to the power outlet. The control panel screen displays lights up.
2. Press , and enter the password ( Sequentially press: ). Then press
, and the operation indicator lights up..
6.3.2 Setting the Cabinet Temperature
1. Press until CONTROL TEMP shows in the lower screen.
2. Press or . A password request appears on the screen.
3. Enter the password (Sequentially press ), then press . The
temperature can be increased or decreased by pressing and holding or .
4. Press to return to the monitoring mode.
6.3.3 Setting the Alarm
1. Press or until WARM ALARM or COLD ALARM is displayed on the
bottom of the screen.
2. Press or . You are prompted to enter the password.
3. Enter the password (Sequentially press ), then press . The
temperature can be increased or decreased by pressing and holding or .
6.3.4 Alarm Mute
1. When the alarm sounds, press to silence the alarm.
2. If the failure lasts more than five minutes, the alarm will sound again.
17
6.3.5 Alarm Test
CAUTION!
If the warm alarm set point exceeds than 10°C warmer than the operating
temperature set point, we do not suggest you test the alarm as detailed below.
1. Press and hold . The temperature display shows the temperature rising. When
the temperature reaches the warm alarm set value, the alarm will sound.
Note: The temperature of the refrigerated spaces does not change. Only the sensor is
heated.
2. Release . The sensor and display return to the cabinet temperature in a few
minutes.
6.3.6 Remote Alarm Terminal
The terminal for the remote alarm is located on the rear lower right side of the unit.
The alarm is outputted from the terminal. Contact capacity is DC 24V, 5A or AC
115V / 230V, 5 / 3.5A. No voltage contact.
Contact output Used between COM and NO
At normal condition ”Open”
At abnormal condition “Close”
Used between COM and NC
At normal condition “Close”
At abnormal condition “Open”
Note:
The alarm is activated under the following conditions:
1. When the power cord is disconnected from the outlet, or there is a power failure.
2. When the freezer temperature deviates above or below the alarm temperature
settings.
18
7. Maintenance
WARNING!
To prevent electric shock and possibly injury, always disconnect the power
supply to the unit prior to any repair or maintenance.
Do not to inhale or consume medication or aerosols around the unit during
maintenance. This may harmful to your health.
CAUTION!
During maintenance, wear gloves.
Never touch the condenser when removing the condenser filter for cleaning.
Touching of the condenser may result in burns.
7.1 Condenser Maintenance
Clean the condenser at least every six months but more frequently in dusty
environments.
To clean the condenser:
1. Pull open the grill.
2. Remove the filter and check the fans. If a fan is not operating, contact a service
engineer.
3. Vacuum the condenser.
4. Replace the filter and close the grill.
7.1.2 Cleaning the Condenser Filter
Clean the condenser filter every two to three months.
1. Pull open the grill.
2. Remove the filter.
3. Shake the filter to loosen dust. Rinse the filter in clean water. Shake the excess
water from the filter, and replace the filter.
4. Close the grill.
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7.2 Gasket Maintenance
Periodically check the door or lid gasket for punctures or tears. Leaks are visible as aa
streak of frost which forms at the point of gasket failure. Make sure that the cabinet is
level (refer to Section5.3 for leveling information).
7.3 Defrosting
To defrost the freezer:
1. Empty the freezer.
2. Turn off the unit and allow the interior to warm to room temperature. This is
faster if the door is left open during the warm up process.
3. Allow all ice to melt and remove all the water from the bottom of the cabinet.
Dry the interior with a towel.
Should there be an odor in the freezer, wash the interior with a solution of baking soda
and warm water. Clean the exterior with any common household cleaning wax.
Do not use detergents to clean the cabinet interior or exterior.
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