StayFresh 4H11560US Manual de usuario
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StayFresh*Home*Freeze*Dryer*
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MODEL!4H11560US!
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1.!Specifications!..........................................................................................................................!4!
2.!Installation*Guide!...................................................................................................................!6!
3.!Freeze-Drying*Process!............................................................................................................!9!
Freezing!......................................................................................................................................!9!
Main!drying!................................................................................................................................!9!
Final!drying!.................................................................................................................................!9!
4.!Food*Preparation!..................................................................................................................!10!
Size!and!shape!..........................................................................................................................!10!
Type!of!food!.............................................................................................................................!10!
5.!Automated*Freeze-Drying!....................................................................................................!11!
Freeze-drying!unfrozen!food!without!the!temperature!probe!................................................!12!
Freeze-drying!unfrozen!food!with!temperature!probe!............................................................!14!
Freeze-drying!frozen!food!without!temperature!probe!..........................................................!16!
Freeze-drying!frozen!food!with!temperature!probe!................................................................!18!
6.!Defrosting!.............................................................................................................................!20!
7.!Advanced*Freeze-Drying!......................................................................................................!22!
Manual!freeze-drying!...............................................................................................................!22!
Pre-set!curve!freeze-drying!......................................................................................................!23!
8.!Freeze-Dryer*Settings!...........................................................................................................!25!
Set!parameters!.........................................................................................................................!25!
Download!data!.........................................................................................................................!25!
Set!temperature!.......................................................................................................................!25!
System!reboot!..........................................................................................................................!25!
Touch!calibration!......................................................................................................................!26!
Reset!time!................................................................................................................................!26!
9.!Vacuum*Pump*Oil*Change!....................................................................................................!27!
10.!Touch*Screen*Info!.................................................................................................................!28!
Main-menu!...............................................................................................................................!28!
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Auto-freezedry-start!.................................................................................................................!29!
Auto-freezedry-setting!.............................................................................................................!30!
Auto-freezedry-freezing!...........................................................................................................!31!
Auto-freezedry-maindry!...........................................................................................................!33!
Auto-freezedry-finaldry!............................................................................................................!34!
Auto-freezedry-finaldry-pause!.................................................................................................!34!
Auto-freezedry-complete!.........................................................................................................!35!
Preset-curve-drying!..................................................................................................................!35!
Function-test!............................................................................................................................!37!
Defrosting-setting!....................................................................................................................!37!
Defrosting!.................................................................................................................................!38!
Defrosting-complete!................................................................................................................!38!
Settings!.....................................................................................................................................!39!
Cable-connection-warning!.......................................................................................................!40!
Vacuum-leak-warning!..............................................................................................................!40!
Vacuum-pressure-abnormal.....................................................................................................!41!
Vacuum-not-reached-warning!.................................................................................................!41!
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Specifications!
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1!Touch!screen!controller!
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7!Ventilation!grille!
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2!Acrylic!door!
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8!USB!port!
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3!Door!gasket!
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9!Drain!valve!
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4!Tray!shelf!
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10 !Main!power!inlet!!
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5!Vacuum!port!
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11 !Main!power!switch!
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6!Vacuum!valve!
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12 !Vacuum!pump!power!outlet!
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There!are!three!cables!inside!the!chamber:!one!for!the!power,!one!for!tray!temperature,!and!
one!for!the!temperature!probe.!!The!temperature!sensors!are!connected!by!a!three-pin!
connector.!The!power!is!connected!by!a!two-pin!connector.!The!cables!for!the!power!and!the!
tray!temperature!are!bundled!together.!!
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Table&1&Technical&specifications&
Number!of!trays!
4!
Tray!size!
W!8!in.!x!D!20!in.!x!H!0.75!in.!
Cold!trap!temperature!!
-40F!
Rated!current!
15A!
Power!
115v/60Hz!
Weight!
165!lbs.!
Dimension!
W!20!in.!x!D!26!in.!x!H!31!in.!
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2.
Installation!Guide!
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The!freeze!dryer!is!for!indoor!use!only.!It!is!best!used!in!a!temperature-controlled!room,!where!
the!temperature!ranges!from!60F!to!80F.!!Do!not!use!the!freeze!dryer!when!the!room!
temperature!is!over!85F.!The!freeze!dryer!requires!proper!ventilation!in!the!room.!!
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The!freeze!dryer!needs!at!least!three!inches!of!distance!from!the!wall!to!its!back,!and!at!least!
six!inches!of!distance!from!the!walls!to!the!left!and!right!side.!
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The!freeze!dryer!needs!a!dedicated!circuit,!and!a!15-amp!outlet!which!must!be!within!five!feet!
of!distance.!
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Installation*steps:*
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Step*1.**
Unpack!the!delivery!box!and!make!sure!items!in!the!packing!list!are!not!missing.!Place!the!
freeze!dryer!in!a!proper!location!as!described!above.!!!
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Step*2.**
Remove!the!oil!cap!and!fill!the!vacuum!pump!with!oil!using!the!funnel!until!the!oil!level!in!the!
sight!glass!reaches!the!middle!line.!Note!that!the!oil!level!does!not!change!initially!when!you!
pour!in!the!oil,!but!when!it!starts!to!rise!it!rises!quickly.!Replace!the!oil!cap!and!place!the!
vacuum!pump!to!the!left!side!of!the!freeze!dryer.!
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Step*3.**
Plug!the!power!cord!to!the!wall!outlet!and!the!other!end!to!the!back!of!the!freeze!dryer!(○
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main!power!inlet!in!page!4).!Plug!the!vacuum!pump!cord!to!the!back!of!the!freeze!dryer!(○
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vacuum!pump!power!outlet!on!page!4).!Turn!on!the!vacuum!pump!switch!on!the!back!of!the!
vacuum!pump.!The!following!is!a!generic!schematic!of!ON/OFF!statuses!for!a!switch.!!
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Step*4.**
Connect!one!end!of!the!PVC!vacuum!hose!to!the!freeze!dryer!(○
5!Vacuum!port!on!page!4),!and!
the!other!end!to!the!vacuum!pump!the!same!way!as!shown!below.!Tighten!the!connection!
using!the!hose!clamps.!!
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Step*5.**
Close!the!vacuum!valve!(○
6vacuum!valve!on!page!4)!and!the!drain!valve!(○
9drain!valve!on!page!
4).!The!following!image!shows!the!Open/Close!statuses!for!a!valve:!
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Step*6.**
Connect!drain!hose!to!the!drain!valve!(○
9drain!valve!on!page!4).!Put!the!other!end!of!the!hose!
in!a!water!bucket!(not!provided).!!
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Step*7.**
Turn!on!the!power!switch!in!the!back!of!the!freeze!dryer!(○
11 !main!power!switch!on!page!4).!The!
touch!screen!should!light!up!and!show!the!main!menu.!Let!the!freeze!dryer!settle!for!24!hours!
before!the!first!use.!Go!to!Section!5!to!learn!how!to!run!the!automated!freeze-drying!process.!
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3.
Freeze-Drying!Process!!
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The!freeze-drying!cycle!includes!three!stages:!freezing,!main!drying,!and!final!drying.!!
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Freezing!
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The!freezing!stage!takes!6-15!hours!if!the!food!is!unfrozen!and!2-4!hours!if!frozen.!The!time!of!
freezing!also!depends!on!the!type,!weight,!and!geometry!of!the!foods.!Foods!of!higher!moisture!
and!greater!thickness!need!more!freezing!time.!In!the!freezing!stage,!the!cold!trap!(bottom!of!
the!chamber)!temperature!gradually!drops!to!around!-40F.!!
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In!the!freezing!stage,!only!the!compressor!is!running.!You!will!observe!frost!on!the!interior!
surface!of!the!chamber!and!sometimes!condensation!on!the!acrylic!door!and!the!gasket.!
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Main!drying!
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The!main!drying!stage!starts!automatically!when!the!preset!freezing!time!is!reached,!or!preset!
shelf!temperature!is!reached,!or!preset!food!temperature!is!reached.!(Check!the!Auto-freeze-
dry-setting!in!Section!10.!Touch!screen!info!for!more!details.)!You!can!also!start!the!drying!
process!by!pressing!the!‘Drying’!button.!!
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At!the!start!of!the!main!drying!stage,!the!vacuum!pump!will!be!turned!on!for!a!preset!amount!
of!time.!Then!the!chamber!should!reach!a!low!vacuum!pressure!at!or!below!550mTorr.!The!
heater!will!then!be!turned!on!to!maintain!the!pressure!at!the!initial!target!pressure.!Then!the!
patented!freeze-drying!algorithm!will!start!to!control!the!heater!to!alternate!between!the!
constant-pressure!phase!and!the!constant-temperature!phase.!In!the!constant-pressure!phase,!
the!controller!maintains!the!pressure!at!the!same!level!while!the!shelf!temperature!will!
gradually!increase.!Once!the!target!shelf!temperature!increase!is!reached,!the!algorithm!will!
enter!the!constant-temperature!phase,!where!the!controller!keeps!the!shelf!temperature!
constant,!and!the!vacuum!pressure!will!gradually!decrease.!Once!the!target!pressure!decrease!
is!achieved,!the!algorithm!will!go!back!to!the!constant-pressure!phase!and!so!forth!until!the!
maximum!shelf!temperature!is!reached.!!!
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In!the!main!drying!stage,!the!compressor/vacuum!pump!are!both!running!nonstop!while!heater!
is!turned!on!and!off!according!to!the!controller.!At!this!point!you!should!observe!rings!of!ice!
grow!on!the!interior!surface!of!the!chamber.!!
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Final!drying!
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The!final!dry!stage!starts!when!some!indicators!are!observed:!the!maximum!temperature!is!
reached,!or!a!preset!food!temperature!measured!by!the!temperature!probe!is!reached!(the!
later!indicator!will!work!only!when!the!probe!is!being!used).!The!indicators!tell!that!most!of!the!
moisture!is!extracted!from!the!food.!The!final!dry!stage!will!run!a!default!seven!hours.!The!
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drying!algorithm!will!automatically!adjust!the!final!dry!time!when!the!temperature!probe!is!
used.!Add!extra!final!dry!hours!manually!if!necessary.!!
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In!the!final!drying!stage,!the!compressor/vacuum!pump/heater!work!the!same!way!as!the!main!
drying!stage.!After!the!drying!is!complete,!the!vacuum!pump!and!the!heater!will!be!turned!off,!
while!the!compressor!is!still!running!to!keep!the!chamber!cool.!!
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4.
Food!Preparation!
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Size!and!shape!
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If!the!food!is!liquid!or!semi-liquid,!directly!pour!the!food!evenly!on!the!trays.!If!the!food!is!solid,!
cut!or!make!them!with!less!than!half!inch!thickness.!It!is!recommended!to!have!foods!of!similar!
type!and!thickness!on!each!tray!for!a!better!drying!result.!
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Always!cut!the!food!into!small!pieces,!if!possible,!for!a!better!drying!result.!The!thicker!the!
food,!the!longer!it!will!take!for!freeze-drying.!!
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Type!of!food!
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The!freeze!dryer!only!removes!water!from!the!food.!Oily!food!may!not!be!suitable!for!freeze-
drying.!Further,!oil!may!go!rancid!after!packaging!in!the!mylar!bag.!
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Do!not!mix!frozen!and!unfrozen!foods!in!the!same!batch.!
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It!is!recommended!to!have!foods!of!similar!moisture!in!one!batch!for!efficiency!reasons.!!The!
drying!time!will!depend!on!the!moisture!level!of!the!foods!in!the!same!batch.!The!higher!the!
moisture,!the!longer!the!drying!time.!
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