REVCO Legaci ULT2186-9-D14 User manual

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39125H01 Rev. J
©2005 Revco
All rights reserved
Printed in U.S.A
Chest and
Upright Freezers
Installation and Operation Manual
Table of Contents
About Legaci®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . 1
General Recommendations . . . . . . . . . . . . . . . . . . 1
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operation (Ultimaand EliteFreezers) . . . . . . . 4
Operation (ValueFreezers) . . . . . . . . . . . . . . . . . 9
Maintenance and Troubleshooting . . . . . . . . . . . . 10
Chart Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . 12
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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Installation and Operation
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Table of Contents
1 About Legaci® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 General Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3.1 Initial Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4 Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
5.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.3 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
5.4 Door Operation (Upright Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
5.4.1 Opening the Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
5.4.2 Closing the Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
5.5 Pressure Equalization Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
6 Operation (Ultima II-9 and Elite-5 Freezers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1 Control Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
6.2 Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2.1 Turning the Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2.2 Setting the Cabinet Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2.3 Setting the Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2.4 Alarm Reset & Status Lights (Ultima II and Elite Freezers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
6.2.5 Alarm Test (Ultima II and Elite Freezers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.3 Backup System (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6.3.1 CO2and LN2Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
6.3.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
6.3.4 System Status Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7 Operation (Value Freezers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.1 Control Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.2 Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.2.1 Turning the Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.2.2 Setting the Cabinet Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
7.2.3 Optional Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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Installation and Operation
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8 Operation (Countertop Freezers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1 Control Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8.2 Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8.2.1 Turning the Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8.2.2 Setting the Cabinet Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
8.2.3 Warm Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
9 Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1 Condenser Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1.1 Cleaning the Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9.1.2 Cleaning the Condenser Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9.2 Gasket Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9.3 Defrost Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9.4 Alarm Battery Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
9.5 Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
10 Chart Recorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
10.1Set Up and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
10.2Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
10.3Changing Chart Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
10.4Calibration Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
11 Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11.1Backup Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
11.1.1 Liquid Nitrogen (LN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
11.1.2 Liquid CO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11.1.3 Voltage Safeguard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
11.2Remote Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
13 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.1Domestic Warranty
13 Months Full Warranty, Parts and Labor
United States of America and Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
13.2International Warranty
16 Month Parts Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
13.3Extended Warranty Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
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Installation and Operation
Chest and Upright Freezers
1
1 About Legaci®
All of the Revco ultra-low temperature freezers described in this
manual feature the Legacirefrigeration system, a combination
of advanced technologies designed specifically to provide
optimal reliability in low-temperature applications.
Legaci systems include:
•Copeland compressors custom-designed for Revco to
minimize bearing wear and operate efficiently under heavy
work loads
•Dupont Suvarefrigerants selected to provide maximum
cooling capacity under low-temperature conditions
•Revco’s field-proven cascade refrigeration system design.
All upright models include a pressure equalization port to combat
the vacuum created after door openings.
2 Safety Precautions
In this manual and on labels attached to this product, the words
WARNING and CAUTION mean the following:
•WARNING: a potentially hazardous situation which, if not
avoided, could result in serious injury or death.
•CAUTION: a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury or damage to
the equipment.
Before installing, using or maintaining this product, please be sure
to read this manual and product warning labels carefully. Failure to
follow these instructions may cause this product to malfunction,
which could result in injury or damage.
Below are important safety precautions that apply to this product:
•Use this product only in the way described in the product
literature and in this manual. Before using it, verify that this
product is suitable for its intended use.
•Do not modify system components, especially the controller.
Use OEM exact replacement equipment or parts. Before use,
confirm that the product has not been altered in any way.
•Your unit must be properly grounded in conformity with
national and local electrical codes. Never connect the unit to
overloaded power sources.
•Disconnect the unit from all power sources before cleaning,
troubleshooting, or performing other maintenance on the
product or its controls.
3 General Recommendations
The refrigeration system is designed to maintain ultra-low
temperatures with safety in a +32C (90F) ambient
environment, only when the freezer is used for storage.
WARNING! This unit is not a “rapid-freeze” device.
Freezing large quantities of liquid, or high-water
content items, will temporarily increase the chamber
temperature and will cause the compressors to
operate for a prolonged time period. Attempting to
utilize this freezer improperly may jeopardize safety or
cause undue stress or damage to the refrigeration
compressors.
Avoid opening the door for extended time periods since chamber
temperature air will escape rapidly. Room air, which is higher in
humidity, replacing chamber air may cause frost to develop in the
chamber more rapidly.
After reading and completing the Safety Considerations,
Pre-Installation, Installation, and Operation sections of this
manual, turn the Key Switch to the POWER ON position.
3.1 Initial Loading
When loading the unit with “pre-frozen” materials, the operating
temperature setpoint of the freezer should be set no lower than
the temperature of the “pre-frozen” material. Allow the unit to
operate at the setpoint for eight hours. The setpoint may then be
lowered in increments no greater than 10ºC. Allow a stabilizing
period of eight hours for each ten degree adjustment, until the
desired setpoint is achieved.
CAUTION! Failure to follow these procedures or
overloading the unit may cause undue stress on the
compressors or jeopardize user product safety.
4 Pre-Installation
4.1 Unpacking
At delivery, examine the exterior for physical damage while the
carrier’s representative is present. If exterior damage is
present, carefully unpack and inspect the unit and all
accessories for damage.
If there is no exterior damage, unpack and inspect the
equipment within five days of delivery. If you find any damage,
keep the packing materials and immediately report the damage
to the carrier. Do not return goods to Revco without written
authorization. When submitting a claim for shipping damage,
request that the carrier inspect the shipping container and
equipment.
CAUTION! Do not discard the sublids from
chest-style units. The sublids are necessary to
maintain correct temperature, moisture control, and
economy of operation. Upright models do not include
sublids as they utilize built-in metal inner doors.
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5 Installation
Do not exceed the electrical and temperature ratings printed on
the dataplate located on the lower left side of the unit.
CAUTION! Improper operation of the equipment
could result in dangerous conditions. To preclude
hazard and minimize risk, follow all instructions and
operate within the design limits noted on the
dataplate.
5.1 Location
Install the unit in a level area free from vibration with a minimum
of six inches of space on the sides, rear, and top. Refer to
Section 5.3 for further instructions on leveling cabinets. Allow
enough clearance so that door or lid can swing open at least
90 degrees.
Do not position the equipment in direct sunlight or near heating
diffusers, radiators, or other sources of heat. The ambient
temperature range at the location must be 59 to 90F
(15 to 32C).
CAUTION! To allow for proper air flow, a minimum
of six inches of clearance space is required behind the
freezer.
5.2 Wiring
CAUTION! Connect the equipment to the correct
power source. Incorrect voltage can result in severe
damage to the equipment.
CAUTION! For personal safety and trouble-free
operation, this unit must be properly grounded before
it is used. Failure to ground the equipment may cause
personal injury or damage to the equipment. Always
conform to the National Electrical Code and local
codes. Do not connect the unit to overloaded power
lines.
Your freezer is equipped with one of five NEMA style plugs
(refer to Figure 1). These plugs meet UL requirements.
Figure 1. NEMA Style Plugs
Always connect the freezer to a dedicated (separate) circuit. Each
freezer is equipped with a service cord and plug designed to
connect it to a power outlet which delivers the correct voltage.
Supply voltage must be within +10%, -5% of the freezer rated
voltage.
If you have known voltage stability problems which are outside
the limits of the freezer rated voltage, we recommended that the
freezer be equipped with a Voltage Safeguard. Order the Voltage
Safeguard from Revco (refer to Section 10.1.3 on page 12 for
ordering information).
Note: Revco 900 Series freezers are equipped with a standard
built-in Voltage Safeguard circuit to detect and adjust
low line voltage.
CAUTION! Never cut the grounding prong from the
service cord plug. If the prong is removed, the
warranty is invalidated.
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 low
wheel(s) with strips of sheet metal cut at least 1/2 in. wider than
the caster.
Upright models have adjustable leveling feet which are located
adjacent to the front casters.
15A-125V
NEMA 5-15P
20A-125V
NEMA 5-20P
15A-250V
NEMA 6-15P
20A-250V
NEMA 6-20P
30A-250V
NEMA 6-30P
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3
5.4 Door Operation (Upright Models)
Revco upright freezer models are equipped with an advanced
Cryolatch™assembly specifically designed for ultra-low
temperature freezers.
Features include:
•One-hand operation
•A front-accessible lock, keyed to match the freezer control
lock
•Hasps for a standard padlock to provide additional security
•Durable construction for reliable operation and safe product
storage.
CAUTION! When moving the freezer, always grasp
cabinet surfaces; never pull the freezer by the latch
handle.
5.4.1 Opening the Door
1. Remove the padlock if you have one.
2. Move the key into the open position by rotating it counter-
clockwise.
3. Grasp the latch handle (preferably with your left hand) and
pull it toward yourself until the latch disengages from the
cabinet strike.
4. Keep pulling by the latch handle or the integrated door
handle to open the main door.
5.4.2 Closing the Door
Note that the latch does not self-engage automatically when you
close the door. You must rotate the latch into the open position
first.
1. Grasp the latch handle (preferably with your left hand) and
pull it toward yourself, rotating the latch into the open
position.
2. Move the freezer door into the closed position and gently
push the handle away from you, making sure that the latch
engages fully with the cabinet strike.
CAUTION! Closing the door without making sure
the latch engages fully with the strike can result in
substantial prying forces on the door.
3. Keep applying gentle pressure to the latch handle until the
latch is securely in closed position.
4. Insert the key and rotate clockwise to lock.
5. Replace the padlock if you are using one.
5.5 Pressure Equalization Port
When an upright ultra-low temperature freezer door is opened,
room temperature air rushes into the storage compartment. 
When the door is closed, the fixed volume of air is cooled rapidly.
Pressure drops below atmospheric pressure, resulting in a
substantial vacuum. Re-entry into the cabinet is impossible until
internal pressures are returned to atmospheric pressure. Without a
pressure equalization mechanism, it can take several minutes
before the door can easily be reopened.
All upright models feature a port that provides vacuum relief
after door openings.
The pressure equalization port is located in the bottom left side of
the storage chamber. Although the port is designed to self-
defrost, excessive frost accumulation in the bottom of the
chamber could eventually restrict air flow. Therefore you should
periodically inspect the port and brush away any loose frost using
a stiff nylon brush.
WARNING! To ensure proper operation, be sure not
to obstruct the port. Push any storage racks near the
port all the way to the rear of the cabinet.
WARNING! When the freezer is in operation, avoid
touching the lower left side of the cabinet exterior near
the “hot surface” warning label. The port can get hot
immediately after it is activated.
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Installation and Operation
Chest and Upright Freezers
4
6 Operation (Ultima II-9 and Elite-5 Freezers)
6.1 Control Panel Features
Figure 2. Ultima II 900 Series Control Panel with Optional Backup System
off
life-guard alert extreme ambient alert
clean filter
power failure
temperature failure
alarm test alarm reset
cabinet
temperature
control
set point
alarm
battery low
voltage
warm alarm
set point
cold alarm
set point
power on
alarm on
set point security
Ultima
1157 9 10
11
SUPPLY
ON
SUPPLY
EMPTY
BACKUP SYSTEM
BATTERY
LOW
823
612 13 2120 22
14 1819
17
16
2
543
check
fuse
boost
Before the initial start up, take some time to become familiar
with the controls on your freezer. Figure 2 illustrates the Revco
Ultima II Chest and Upright Freezer control panel.
Note: Figure 2 shows all possible functions. These functions
vary depending on the model and options. You may not
have all of the functions on your equipment. Elite models
do not include the Check Fuse indicator light (6) or the
Voltage Boost light (19) as these models do not come
standard with these options. Likewise, only Ultima II
models will include the Set Point Security feature (23),
Life-Guard Alert indicator light (5), and the Extreme
Ambient Alert indicator light (16). The CO2or LN2
Backup System lights (20, 21, 22) represent status
indicators for a built-in CO2or LN2backup system,
which is optional on Ultima II and Elite models.
1. Three position keyed Power On Switch.
2. Power On Indicator. This indicator lights when power is
connected to the freezer.
3. Temperature Failure Indicator. This indicator lights when the
freezer temperature deviates either above or below the alarm
temperature settings.
4. Power Failure Indicator. This indicator lights when there is a
power failure to the freezer (refer to Section 8 on page 10).
5. Life-Guard Alert Indicator (Ultima II Models only.) This
indicator lights when the first stage compressor has gone into
a cautionary state of operation to help prevent failure.
6. Check Fuse Light (Ultima II and Ultima Models only). This
indicator lights when the surge protector on the main
electronic panel is blown by a power surge (refer to Section 8
on page 10).
7. Alarm Test Pad. Press this pad to start an alarm test (refer to
Section 5.2.5 on page 6).
8. Alarm Reset Pad. Press this pad to reset slowly blinking
indicators. Slowly blinking indicators denote that the
condition has occurred but is now within the given operating
parameters. This pad is also depressed to temporarily silence
the audible alarm (refer to Section 6.2.4 on page 5).
9. Cold Alarm Setpoint. Press this pad to set the cold alarm
(refer to Section 6.2.3 on page 5).
10. Warm Alarm Setpoint. Press this pad to set the warm alarm
(refer to Section 6.2.3 on page 5).
11. Control Setpoint. Press this pad to set the cabinet temperature
(refer to Section 6.2.2 on page 5).
12. Cabinet Temperature Indicator. This indicator lights when the
temperature display window is showing the cabinet
temperature (refer to Section 6.2.1 on page 5).
13. Digital Temperature Display Window. This window displays
chamber temperature, alarm values, etc. depending on the
operating status of the freezer and the procedure being
performed.
14. Decrement Pad ( ). Use this pad to decrease temperature
values.
15. Increment Pad ( ). Use this pad to increase temperature
values.
16. Extreme Ambient Alert (Ultima II Models only). This
indicator lights when the ambient temperature has exceeded
the upper limit of the recommended operating range. If the
Extreme Ambient Alert is activated, the ambient
environment needs to be improved for proper function of the
freezer.
17. Clean Filter Indicator. This indicator lights when the air
cooled condenser filter is dirty (refer to Section 8 on
page 10).
18. Alarm Battery Low Indicator. This indicator lights when the
charge on the alarm battery is low. Press this button to
display the percent of full battery charge in the digital display
window.
19. Voltage Boost Indicator. This indicator lights when incoming
voltage is low and the Voltage Safeguard has been activated
(refer to Section 8 on page 10). Press this pad to display the
current line voltage in the digital display window.
23. Alarm On/Set Point Security Indicator. This indicator lights
when the alarm is activated.Also indicates that Setpoint
Security is activated (Ultima II Models only).
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Installation and Operation
Chest and Upright Freezers
5
The following indicators are available only when the freezer is
equipped with the optional backup system (refer to Section 6.3.4
on page 7).
20. Backup System Supply On Indicator.
21. Backup System Empty Indicator
22. Backup System Battery Low Indicator.
6.2 Start Up
Refer to Section 6.1 and Figure 2 on page 4 as you complete the
following procedures.
6.2.1 Turning the Power On
To start up the Ultima 900, Ultima 700 and Elite 500 Series
Freezers, complete the following steps:
1. Plug the freezer into the power outlet (refer to Section 4.2 on
page 2).
2. Turn the key switch to the POWER ON position. The Power
On LED and the Cabinet Temperature LED illuminate.
Note: The alarm function is not active at this time. Refer to
Section 5.2.3 for information about setting the alarms. In
addition, for Ultima II units only, the Setpoint Security
will be deactivated in this key position.
6.2.2 Setting the Cabinet Temperature
To set the cabinet temperature, complete the following steps:
1. For Ultima II units, press and hold the Control Setpoint pad.
2. The Control setpoint LED lights and the Cabinet
Temperature LED goes out.
3. Press and hold to increase the temperature or to
decrease the temperature. The digital display scrolls through
temperature settings.
4. Release both pads when the digital temperature display
window shows the correct setpoint value.
Note: If no keys are pressed within ten seconds, the
temperature display reverts to the cabinet temperature.
6.2.3 Setting the Alarms
To set the cold alarm, complete the following steps:
1. For Ultima II units only, confirm that the key switch is at the
Power On position (Setpoint Security disabled)
2. Press and hold the Cold Alarm Setpoint pad. The LED next
to this pad lights. The temperature display shows the Cold
Alarm value.
3. Press and hold or to adjust the Cold Alarm Setpoint.
4. Release both pads when the digital temperature display
window shows the correct setpoint value.
To set the warm alarm, complete the following steps:
1. For Ultima II units only, confirm that the key switch is at the
Power On position (Setpoint Security disabled).
2. Press and hold the Warm Alarm Setpoint pad. The LED next
to this pad lights. The temperature display shows the Warm
Alarm value.
3. Press and hold or to adjust the Warm Alarm Setpoint.
4. Release both pads when the digital temperature display
window shows the correct setpoint value.
When the cabinet temperature drops below the Warm Alarm
setting, turn the key switch to ALARM ON. The freezer is ready
to operate.
Note: If a power failure lasting over 30 seconds occurs, the
POWER ON light goes out, the POWER FAILURE light
and digital temperature display flash simultaneously,
and a buzzer sounds.
WARNING! You must turn the three-position key
switch to the ALARM ON/SETPOINT SECURITY
position to activate the alarm and place it in security
operation.
6.2.4 Alarm Reset & Status Lights (Ultima II and Elite
Freezers)
The alarm reset feature ensures user acknowledgment of the
occurrence of certain alarm conditions. This provides greater
monitoring power by alerting the user if an alarm condition has
occurred during periods when the freezer must be left
unattended. The alarm conditions incorporating this feature are:
•Temperature Failure-Warm Alarm
•Temperature Failure-Cold Alarm
•Voltage Low
•Power Failure
•Life-Guard Alert (Ultima II only)
•Extreme Ambient Alert (Ultima II only)
During any of these alarm conditions, the corresponding
indicator will flash quickly, approximately 90 times per minute.
If the alarm condition then disappears, the flash rate will
decrease to approximately 15 times per minute. The indicator
will then remain flashing at this rate, unless the condition
reoccurs, until the Alarm Reset button is pressed. Once this has
occurred, the indicator will no longer be lit.
In the case of TEMPERATURE FAILURE-WARM ALARM and
TEMPERATURE FAILURE-COLD ALARM, if these
conditions have occurred but are now within the given limits, the
two indicators will alternately flash (180° out of phase). In
addition, for these two temperatures failures, the highest
temperature and lowest temperature, respectively, during the
error condition will be saved. Prior to the temperature failure
being reset, the temperature extreme may be viewed by pressing
the Cabinet Temperature pad in conjunction with either the
Warm Alarm Setpoint pad or the Cold Alarm Setpoint pad.
Note: Once the Alarm Reset button is depressed, the extreme
temperature value is reset to the current cabinet
temperature.
6.2.5 Alarm Test (Ultima II and Elite Freezers)
To test the cold and warm alarms, complete the following steps:
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Installation and Operation
Chest and Upright Freezers
6
1. Press and hold the Alarm Test pad. The digital temperature
display indicates rising temperature. When the temperature
reaches the warm alarm value, the alarm sounds.
Note: The temperature of the refrigerated space does not
change during this procedure. Only the sensor is heated.
2. Release the Alarm Test pad, the sensor and display return to
cabinet temperature in a few minutes.
You can press the Audio Silence pad to silence the alarm but the
alarm will ring back in five to seven minutes. You can silence the
alarm in this manner as many times as necessary until the sensor
cools below the warm alarm temperature. The alarm quits
automatically when the sensor cools below the warm alarm
value.
Note: There is a limit on the alarm test feature. The alarm test
will not commence if the warm alarm setpoint is more
than 15 degrees warmer than the operating temperature
setpoint.
6.3 Backup System (Optional)
When you purchase a built-in CO2or LN2optional backup
system for the freezer, the backup system control panel is located
behind a hinged panel adjacent to the grill (refer to Figure 3).
Note: Always purchase the cylinders which are equipped with
siphon tubes for withdrawing liquid from the bottom of
the cylinder. CO2cylinders must be kept at room
temperature to function properly. LN2 bottles are
functional at any reasonable temperature.
Use this panel to set the backup initiation temperature, usually
10 to 15C warmer than the operating setpoint.
Figure 3. Control Panel for Optional
Built-In Backup System
Note: Value Series units use free-standing, field installed
Backup Systems.
TEMPERATURE °C
PUSH
TO SET
SETPOINT
ADJUST
POWER
OFF
ON
Power
Switch
Temperature Control
Setpoint Screw
Temperature Control
Set Button
Digital Temperature
Display
Calibration Pot.
6.3.1 CO2and LN2Precautions
The following are precautions for using liquid CO2and LN2
backup systems.
WARNING! If a CO2or LN2cylinder falls and a
valve is knocked off, the cylinder becomes a deadly
and completely unguided missile. Transport the
cylinders in a handtruck or cart with secure chain ties
for the cylinder. After cylinders are connected to the
equipment, securely attach them with chains to a
solid, stationary object such as a building column.
WARNING! CO2and LN2liquids are non-poisonous
but are very cold and will burn unprotected skin.
Always wear protective eyewear and clothing when
changing cylinders or working on the piping systems
attached to an active source of liquid refrigerant.
WARNING! The gases produced by evaporation of
CO2or LN2are non-poisonous but displace the
oxygen in a confined space and can cause
asphyxiation. Do not store the cylinders in subsurface
or enclosed areas.
CAUTION! When closing the cylinder valve, make
sure that the injection solenoid is energized to allow all
the liquid to bleed off instead of being trapped in the
supply tubing. Failure to do this results in activation of
the pressure relief device, which could damage the
freezer and requires replacing if it is activated.
CAUTION! For chest and upright models ordered
with factory installed built-in backup systems, the flow
of liquid CO2or LN2will be discontinued if the door or
lid is opened during operation of the backup system.
For units operated with free-standing, field installed
type backup system, the flow of liquid CO2or LN2will
be discontinued upon door or lid opening only if the
switch provided with the free-standing package is
installed on the freezer.
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