Thermo Scientific Revco Slimline Value Freezers
Installation and Operation
1
1 Introduction
Revco
®
Slimline Value -86ºC upright freezers feature the use of
vacuum insulation technology to minimize wall thickness and
provide extra storage space. Because of the thin wall
construction, SI models can hold more inventory than
conventional models that take up the same lab space.
Standard features include:
•
High storage capacity — up to 15 inventory racks
•
Separately mounted inner doors with adjustable hinges for
each door
•
A pressure equalization port to combat the vacuum created
after door openings
SI Series freezers use 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 to minimize bearing
wear and operate efficiently under heavy work loads
•
Dupont Suva
®
refrigerants selected to provide maximum
cooling capacity under low-temperature conditions
•
A field-proven cascade refrigeration system design.
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 Pre-Installation
3.1 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 without written
authorization
. When submitting a claim for shipping damage,
request that the carrier inspect the shipping container and
equipment.
4 General Recommendations
This 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.
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.
4.1 Initial Loading
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 and
adjust the temperature setpoint if necessary.
The setpoint should be no warmer than -50ºC.
Allow the freezer
to operate at the desired temperature for a minimum of 12
hours before loading.
Load the freezer one shelf at a time, beginning with the top shelf.
After loading each shelf, allow the freezer to recover to the
desired setpoint before loading the next shelf. Repeat this process
until the freezer is fully loaded.
CAUTION!
Failure to follow these procedures or
overloading the unit may cause undue stress on the
compressors or jeopardize user product safety.
