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Twin Guard
Dual°Cool Refrigeration System
™
Dual, independent refrigeration systems operate in Normal or energy-saving EcoMode™ which is selected by the user and engaged through the
LCD controller. Normal Mode is used for the strictest of GMP applications. EcoMode™ is applicable to 90-95% of applications.
Twin Guard
Dual°Cool Refrigeration System
™
Status
System A and B ON
System A and B ON, Cycling On/Off
System A and B ON, Cycling On/Off
System A ON
System B ON
EcoMode
vs. Normal Mode
™
ECO mode operation image
Pull down
Stable temperature
Temp.
Comp A
Comp B
NORMAL mode operation image
Pull down
Stable temperature
Temp.
Comp A
Comp B
This chart shows the repeatable cycling wave form of normal mode vs. eco mode.
Normal mode is for strict GMP applications.
6
Twin Guard Series
-86°C Ultra-Low Freezers
™
Function
Maximum Pull-Down and Recovery Capcity
EcoMode™
Normal Mode
Back-Up for System B
Back-Up for System A
www.twinguardseries.com
Performance
Establishes highly uniform -86°C storage
temperature; maximizes recovery following
door openings and heat load additions
Maintains better energy management at
high or low ambient temperatures as well as
excellent top-to-bottom uniformity.
Maintains excellent top-to-bottom uniformity.
Maintains most repeatable, cycling wave form
for the strictest of GMP applications.
Maintains minimum -65°C reserve
temperature
Maintains minimum -65°C reserve
temperature
Chamber
temp
T12 on
T12 off
Comp A
Comp B
2 compressors are turned ON/OFF at same time
Chamber
temp
T on
T1 off
T12 on
Comp A
Comp B
Chamber
temp
T12 off
T12 on
T2 on
T2 off
Comp A
Comp B
2 compressors and fan motor for each are independently controlled by SV and read AT.
The SANYO Twin Guard Series
™
Freezer can be set for Normal or
EcoMode
™
operation. EcoMode
™
establishes an overlapping cycle to
significantly reduce energy consumption.
-86˚C
A
B
-86˚C
A
B
-86˚C
A
B
-65˚C
A
B
-65˚C
A
B
T2 off
T1 2 on
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