Thermo Scientific Jewett XR60C User manual

Installation and Operation Manual
Thermo Scientific Jewett®
Blood Bank Refrigerators

©2008 Thermo Fisher Scientific. All rights reserved.
“Suva®” is a registered trademark of DuPont.
All other trademarks are the property of Thermo Fisher Scientific Inc. and
its subsidiaries.

Thermo Scientific Jewett Blood Bank Refrigerators Installation and Operation
1 Introduction
This product is a complete packaged unit ready to operate when
plugged into an electrical source. It is not necessary to have a
refrigeration serviceman set the unit in operation. The unit has
been tested prior to shipment. Read all the instructions before
proceeding with installation..
2 Inspection for Damage
Uncrate the product and remove all packing and crating
materials. Inspect the product and parts thoroughly for damage
or missing parts. File all claims for damage with the
transportation company immediately. Do not file claims with the
manufacturer.
3 Installation Instruction
1. Measure all doorways and passageways for clearance before
moving cabinet. Model sizes 17 and 37 will pass through a
standard 30" X 84" door opening. Model sizes 25 and 55 will
pass through a 36" X 84" door opening. For additional front
to back clearance, remove the door handles using a
screwdriver. If additional clearance is needed, remove the
condensate evaporator assembly, channel guards and drain
tube from the back of the cabinet. Remove (2) 1/4" bolts
using a 7/16"wrench. A 3/8" nut driver will enable removal
of the condensate heater. To remove the drain tube, detach
the rubber tube located below the unit cooler inside the
cabinet. With a slight twisting motion, pull drain tube from
the back of the cabinet. Do not disconnect wiring on
condensate evaporator assembly. Flexible armored cable will
permit sufficient movement to swing assembly to top or side
of cabinet.
2. Inspect the interior, exterior and mechanical equipment for
special instruction tags fastened at various points.
3. Move the refrigerator into the desired location. Make sure
the bottom of the refrigerator is evenly supported. Thin
shims under the points of rest can be used to equalize the
distribution of weight. If the cabinet sets on an uneven floor,
a slight rocking or vibration might result when the
condensing unit is set in operation.
4. A minimum of 8" clearance is required between the ceiling
and the top of the cabinet; and a minimum of 3" clearance is
required at the rear to allow adequate ventilation of the
mechanical equipment.
5. The condensing unit is shipped with all service valves open
and ready for operation. Do not adjust the refrigerant valves
or the temperature control.
6. Use of electrical characteristics, other than those specified on
the serial plate will cause permanent damage to the
mechanism. The serial plate is located inside the refrigerator
at the top of the right hand wall.
7. All models have been provided with an electric condensate
evaporator located on the back of the cabinet. Periodic
cleaning of the condensate pan will insure proper operation.
CAUTION! PAN AND HEATER ARE HOT.
8. Operate the refrigerator for several hours to allow the unit to
reach normal operating temperatures before storing product.
NOTE: Erratic operation on initial start-up does not indicate
a faulty control. When normal operating temperature is
reached, the condensing unit will cycle regularly.
4 Maintenance Instructions
1. Frequent cleaning of the interior and exterior with water and
a good fungicidal detergent that eliminates harmful bacteria,
stains and other foreign matter will keep the unit fresh and
new looking.
2. Shelves and/or drawers should be removed from the cabinet
and thoroughly scrubbed. Clean door gasket periodically.
3. The unit cooler fan operates continuously when the door is
closed and requires no lubrication. These models require no
manual defrosting. The cooling coil automatically defrosts
when the condensing unit is on the off cycle.
4. The condensing unit needs no oil or other lubrication. The
finned condenser can become clogged with lint or dust. The
openings between the fins should be kept clean. A vacuum
cleaner or small test tube brush works well for this purpose.
This should be accomplished on an annual basis. Failure to
keep the condenser fins free of dirt and lint will result in
erratic operation and may damage the refrigeration system.
5. Annual inspection of the mechanical refrigeration equipment
by a qualified serviceman is recommended. A qualified
mechanic can frequently make adjustments that will prevent
future breakdown.
6. The refrigeration system is charged with refrigerant R134a.
If the system is opened for any reason, extreme care should
be taken to prevent the entry of moisture-bearing air. A new
drier should be installed in the lines when the system is
closed.
5 Operating Instructions
JEWETT Blood Bank Refrigerators are factory preset to operate
within a +2° C to +4° C temperature range. Manual defrosting of
the refrigerator cabinet is not required, as the unit cooler defrosts
automatically when the condensing unit is on the off cycle. The
unit cooler fan motor inside of the refrigerator runs continuously
when the door is closed to provide a uniform cabinet
temperature.
1

Thermo Scientific Jewett Blood Bank Refrigerators Installation and Operation
TEMPERATURE CONTROL
This refrigerator uses a Dixell XR60 temperature control:
Control operation is described in detail on the following three insert pages.
The operating temperature setpoint for all blood bank refrigerators is pre-set to 4ºC at the factory and should
not normally be changed for blood storage applications. If you want to adjust any control parameters, it is
advisable to contact Technical Service before doing so.
CAUTION! Unless a front panel control option has been specified, the control panels for BBR blood
bank refrigerators are located inside a junction box on the back of the refrigerator. To access the
control, remove the four screws and carefully remove the cover. Be sure to avoid touching any
component inside the junction box other than the control panel.
WARNING! Making control adjustments inside the junction box involves potential contact with line
voltage and should only be performed by a qualified service technician.
ºC
SET
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Digital controller with defrost and fans management
XR60C
CONTENTS
1. GENERAL WARNING_____________________________________________ 1
2. GENERAL DESCRIPTION _________________________________________ 1
3. CONTROLLING LOADS___________________________________________ 1
4. FRONT PANEL COMMANDS_______________________________________ 1
5. TEMPERATURE ALARM AND ITS DURATION RECORDING (HACCP)______ 1
6. MAIN FUNCTIONS _______________________________________________ 2
7. PARAMETERS __________________________________________________ 2
8. DIGITAL INPUT__________________________________________________ 3
9. INSTALLATION AND MOUNTING ___________________________________ 3
10. ELECTRICAL CONNECTIONS______________________________________ 3
11. HOW TO USE THE HOT KEY ______________________________________ 3
12. ALARM SIGNALS ________________________________________________ 4
13. TECHNICAL DATA _______________________________________________ 4
14. CONNECTIONS _________________________________________________ 4
15. DEFAULT SETTING VALUES ______________________________________ 4
1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
•This manualis part of the product and should be kept near the instrument for easy
and quickreference.
•The instrument shall not be used for purposes different from those described
hereunder. It cannot be used as a safety device.
•Check the application limits before proceeding.
1.2 SAFETY PRECAUTIONS
•Check the supplyvoltage is correctbefore connecting the instrument.
•Do not expose to water or moisture: use the controller only within the operating
limits avoiding sudden temperature changes with high atmospheric humidity to
prevent formation of condensation
•Warning: disconnect all electrical connections before any kind of maintenance.
•Fit the probe where it is not accessible by the End User. The instrument must not
be opened.
•In case of failure orfaulty operation send the instrumentback to the distributor or to
“Dixell s.r.l.” (see address)with a detailed description of the fault.
•Consider the maximum current which can be applied to each relay (see Technical
Data).
•Ensure that the wires for probes, loadsand the power supply are separated and far
enough from each other,without crossing or intertwining.
•In case of applications in industrial environments, the use of mains filters (our mod.
FT1) in parallel with inductive loadscould be useful.
2. GENERAL DESCRIPTION
Model XR60C, 32x74 mm format, is a microprocessor based controller, suitable for
applications on medium or low temperature ventilated refrigerating units. It has three
relay outputs to control compressor, fan, and defrost, which can be either electrical or
reverse cycle (hot gas). It is also provided with two NTC or PTC probe inputs, one for
temperature control, the other, to be located onto the evaporator, to control the defrost
termination temperature and to managed the fan. The instrument is fully configurable
through specialparameters that can be easilyprogrammed through the keyboard.
3. CONTROLLING LOADS
3.1 COMPRESSOR
The regulation is performed according to the temperature measured by the thermostat
probe with a positive differential from the set point: if the temperature increases and
reaches set point plus differential the compressor is started and then turned off when
the temperature reaches the setpoint value again.
In case of fault in the thermostat probe the start and stop of the compressor are timed
through parameters“COn” and “COF”.
3.2 DEFROST
Two defrost modes are available through the “tdF” parameter: defrost through electrical
heater (tdF = EL) and hot gas defrost (tdF = in). Other parameters are used to control
the interval between defrost cycles (IdF), its maximum length (MdF) and two defrost
modes: timed or controlled by the evaporator’sprobe (P2P).
At the endof defrost dripping time is started, its length is set in the FSt parameter. With
FSt =0 the dripping time isdisabled.
3.3 CONTROL OF EVAPORATOR FANS
The fan control mode is selected by means ofthe “FnC” parameter:
FnC = C_n:fans will switch ON and OFF with the compressor and not run during
defrost;
FnC = o_n fans will run even if the compressor is off, and not run during defrost;
Afterdefrost, there isa timed fan delay allowing fordrip time, set by meansof the “Fnd”
parameter.
FnC = C_Y fans will switch ON and OFF with the compressor and run during defrost;
FnC = o_Y fans will run continuously also during defrost
An additional parameter “FSt” provides the setting of temperature, detected by the
evaporator probe, above which the fans are always OFF. This is used to make sure
circulation of air only if his temperature is lower than set in “FSt”.
3.3.1 Forced activation of fans
This function managed by the Fct parameter is designed to avoid short cycles of fans,
that could happen when the controller is switched on or after a defrost, when the room
air warms the evaporator.
Functioning: if the difference of temperature between the evaporator and the room
probes is more than the value of the Fct parameter,the fans are switched on.
With Fct=0 the function is disabled.
4. FRONT PANEL COMMANDS
SET: To display target set point; in programming mode it selects a parameter or
confirm an operation.
(DEF) To start a manualdefrost
9
9
(UP): To see the last temperature alarm happened; in programming mode it
browsesthe parameter codes orincreasesthe displayed value.
8
8
(DOWN) To see the last temperature alarm happened; in programming mode it
browsesthe parameter codes ordecreases the displayed value.
KEY COMBINATIONS:
9
9
+ 8
8
To lock& unlock the keyboard.
SET + 8
8
To enter in programming mode.
SET + 9
9
To return to the room temperature display.
4.1 USE OF LEDS
Each LED function is described in the following table.
LED MODE FUNCTION
ON Compressor enabled
Flashing -Programming Phase (flashing with )
- Anti-short cycle delay enabled
ON Defrost enabled
Flashing - Programming Phase (flashing with )
- Drip time in progress
ON Fansenabled
Flashing Fans delay after defrost in progress.
ON An temperature alarm happened
5. TEMPERATURE ALARM AND ITS DURATION RECORDING (HACCP)
XR60C signals and records temperature alarms, together with their duration and max
value reached. See drawing:
Ex. High temperature alarm
Set
ALu
High temp. alarm
Time
Temperature
ALL
Low temp. alarm
;
;
;
Alarm duration
Max
Temperature
Safe food zone
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5.1 HOW TO SEE THE ALARM DURATION AND MAX (MIN) TEMPERATURE
If the alarm LED is on, an alarm has taken place.
To see the kind of alarm, the max (min) reached temperature and alarm duration do as
follows:
1. Push the Up orDown key.
2. On the display the following message isshown::
“HAL” for high temperature alarm (“LAL” for the minimum allarm), followed by the
Maximum (minimum) temperature.
Then the “tiM” (tiMe) message is displayed, followed by the “Duration” in h.mm.
3. Then the instrumentdisplaysthe temperature once again.
NOTE1: if an alarm is still occurring the “tim” shows the partial duration.
NOTE2: the alarm is recorded when the temperature come back to normal values
5.2 HOW TO RESET A RECORDED ALARM OR ONE THAT IS STILL
OCCURRING
1. Hold the SET key pressed for more than 3s, while the recorded alarm is displayed.
(the rSt message will be displayed)
2. To confirm the operation, the “rSt” message starts blinking and the normal
temperature will be displayed.
6. MAIN FUNCTIONS
6.1 HOW TO SEE THE SETPOINT
1. Push and immediately release the
SET
key: the display will
show the Set point value;
2. Push and immediately release the SET key or wait for 5 seconds to display the
probe value again.
6.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key formore than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the LED starts blinking;
3. To change the Setvalue push the 9
9
or 8
8
arrows within 10s.
4. To memorise the new setpoint value push theSET key again or wait 10s.
6.3 HOW TO START A MANUAL DEFROST
Push the DEF keyfor more than 2 seconds and a manual defrost
will start.
6.4 HOW TO CHANGE A PARAMETER VALUE
To change the parameter’s value operate asfollows:
1. Enter the Programming mode by pressing the Set and DOWN
key for 3s ( and start blinking).
2. Selectthe required parameter.
3. Press the “SET” key to display its value (now only the LED is
blinking).
4. Use “UP” or “DOWN” to change its value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting the time-out
to expire.
6.5 THE HIDDEN MENU
The hidden menu Includes all the parametersof the instrument.
6.5.1 HOW TO ENTER THE HIDDEN MENU
1. Enter the Programming mode by pressing the Set + 8
8
key for
3s (LED 1 and start blinking).
2. When a parameter is displayed keep pressed the Set+ 8
8
for
more than 7s.
The Pr2 label will be displayed immediately followed from the HY
parameter.NOW YOU ARE IN THE HIDDEN MENU.
3. Selectthe required parameter.
4. Pressthe “SET” key to display its value (Now only the LED is blinking).
5. Use 9
9
or 8
8
to change its value.
6. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET +
9
9
or wait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting the time-out
to expire.
6.5.2 HOW TO MOVE A PARAMETER FROM THE HIDDEN MENU
TO THE FIRST LEVEL AND VICEVERSA.
Each parameterpresentin the HIDDEN MENUcan be removed or put into “THE FIRST
LEVEL” (user level) by pressing “SET + 8
8
”.
In HIDDEN MENU when a parameter ispresent in FirstLevel the decimalpoint is on.
6.6 HOW TO LOCK THE KEYBOARD
1. Keep pressed for more than 3 s the UP and DOWN keys.
2. The “POF”message will bedisplayed and the keyboard will be locked. At this point
it will be possible only to see the set point or the MAX o Min temperature stored
3. If a keyis pressed more than 3s the “POF” message will be displayed.
6.7 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the 9
9
and 8
8
keys, till the “Pon” message
will be displayed.
6.8 THE CONTINUOUS CYCLE
When defrost is not in progress, it can be activated by holding the
“ 9
9
” key pressed for about 3 seconds.
The compressor operates in continuous mode for the time set through the “CCt”
parameter. The cycle can be terminated before the end of the set time using the same
activation key “ 9
9
” for 3 seconds.
7. PARAMETERS
NOTE: the parameters preceded by dots are in the Hidden Menu.
REGULATION
Hy Differential: (0,1 ÷ 25,5°C / 1÷255 °F) Intervention differential for set point.
Compressor Cut IN is Set Point Plus Differential (Hy). Compressor Cut OUT is
when the temperature reaches the setpoint.
•LS Minimum set point: (- 50°C÷SET/-58°F÷SET): Sets the minimum acceptable
value for the set point.
•US Maximum set point: (SET÷110°C/ SET÷230°F). Set the maximum
acceptable value for set point.
Ot Thermostat probe calibration: (-12.0÷12.0°C;
-120÷120°F) allows to adjust possible offset of the thermostat probe.
P2PEvaporator probe presence: n= not present: the defrost stops by time; y=
present: the defrost stops by temperature.
•OE Evaporator probe calibration: (-12.0÷12.0°C; -120÷120°F). allows to adjust
possible offset of the evaporator probe.
•OdS Outputs activation delay at start up: (0÷255min) This function is enabled
at the initial start up of the instrument and inhibits any output activation for the
period oftime set in the parameter.
AC Anti-short cycle delay: (0÷50 min) minimum interval between the compressor
stop and the following restart.
•CCt Compressor ON time during continuous cycle: (0.0÷24.0h; res. 10min)
Allows to set the length of the continuous cycle: compressor stays on without
interruption for the CCttime. Can be used, for instance, when the room is filled with
new products.
•COn Compressor ON time with faulty probe: (0÷255 min) time during which the
compressoris active in case of faultythermostat probe. With COn=0 compressor is
always OFF.
•COF Compressor OFF time with faulty probe: (0÷255 min) time during which
the compressor is OFF in case of faulty thermostat probe. With COF=0 compressor
is always active.
DISPLAY
•CF Temperature measurement unit:
°C=Celsius; °F=Fahrenheit. WARNING: When the measurement unit is changed
the SET point and the values of the parameters Hy, LS, US, Ot, ALU and ALL
have to be checked and modified if necessary).
rES Resolution (for °C): (in = 1°C; dE = 0.1 °C) allows decimal point display.
•Lod Display : select which probe is displayed by the instrument: P1 =
Thermostat probe; P2 = Evaporator probe
DEFROST
tdF Defrost type: EL = electrical heater; in = hot gas
dtE Defrost termination temperature: (-50÷50 °C/
-58÷122°F) (Enabled only when EdF=Pb) sets the temperature measured by the
evaporator probe, which causes the end of defrost.
IdF Interval between defrost cycles: (0÷120h) Determines the time interval between
the beginning oftwo defrost cycles.
MdF (Maximum) length for defrost: (0÷255min) When P2P = n, (not evaporator
probe: timed defrost) it sets the defrost duration, when P2P = y (defrost end based
on temperature) it sets the maximum length for defrost.
•dSd Start defrost delay: ( 0÷99min) This is useful when different defrost start
timesare necessary to avoid overloading the plant.
•dFd Temperature displayed during defrost: (rt = real temperature; it =
temperature at defrost start; SEt = set point; dEF = “dEF” label)
•dAd MAX display delay after defrost: (0÷255min). Sets the maximum time
between the end ofdefrost and the restarting of the real room temperature display.
•Fdt Drip time: (0
÷
120 min) time interval between reaching defrost termination
temperature and the restoring of the control’s normal operation. This time allows
the evaporator to eliminate waterdrops that might have formed due to defrost.
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•dPo First defrost after start-up: (y = immediately; n = after the IdF time)
•dAF Defrost delay after continuous cycle: (0
÷
23.5h) time interval between
the end of the fastfreezing cycle and the following defrost related to it.
FANS
FnC Fans operating mode: C-n= runswith the compressor, OFF during defrost;
o-n = continuousmode, OFF during defrost;
C-Y = runs with the compressor, ON during defrost;
o-Y = continuousmode, ON during defrost;
Fnd Fans delay after defrost: (0÷255min) Time interval between end of defrost and
evaporator fans start.
Fct Temperature differential avoiding short cycles of fans (0÷59°C; Fct=0 function
disabled). If the difference of temperature between the evaporator and the room
probes is more than the value of the Fct parameter,the fans are switched on.
FSt Fans stop temperature: (-50÷50°C/122°F) setting of temperature, detected by
evaporator probe,above which fansare alwaysOFF.
ALARMS
•ALC Temperature alarms configuration: (Ab; rE)
Ab= absolute temperature: alarm temperature is given by the ALL or ALU values.
rE = temperature alarms are referred to the set point. Temperature alarm is
enabled when the temperature exceedsthe “SET+ALU” or“SET-ALL” values.
ALU MAXIMUM temperature alarm: (SET÷110°C; SET÷230°F) when this
temperature isreached the alarm is enabled,after the “ALd” delaytime.
ALL Minimum temperature alarm: (-50.0÷ SET°C; -58÷230°F when this temperature
is reached the alarm is enabled, after the “ALd” delay time.
•ALd Temperature alarm delay: (0÷255 min) time interval between the detection
of an alarm condition and alarm signalling.
•dAO Exclusion of temperature alarm at startup: (from 0.0 min to 23.5h) time
interval between the detection of the temperature alarm condition after instrument
power on and alarm signalling.
DIGITAL INPUT
i1P Digital input polarity: oP: the digitalinput isactivated by opening the contact;CL:
the digital inputis activated by closing the contact.
i1F Digital input configuration:
EAL = external alarm: “EA” message is displayed; bAL = serious alarm “CA”
message is displayed. PAL = pressure switch alarm, “CA” message is displayed;
dor = door switch function; dEF = activation of a defrost cycle; LHt =not enabled;
Htr = kind of action inversion (cooling – heating).
did:(0÷255 min)
with i1F= EAL or i1F = bAL digital input alarm delay: delay between the
detection of the external alarm condition and its signalling.
with i1F= dor: door open signalling delay
with i1F = PAL: time for pressure switch function: time interval to calculate the
number of the pressure switch activation.
nPS Pressure switch number: (0 ÷15) Number of activation of the pressure switch,
during the “did”interval, before signalling the alarm event (I2F= PAL).
If the nPS activation in the did time is reached, switch off and on the
instrument to restart normal regulation.
•odc Compressor and fan status when open door: no = normal; Fan = Fan
OFF; CPr = Compressor OFF; F_C = Compressorand fan OFF.
OTHER
PbC Type of probe: it allows to set the kind of probe used by the instrument: PbC =
PBC probe, ntC = NTC probe.
•dP1 First probe display
•dP2 Second probe display
•rEL Software release for internal use.
•Ptb Parameter table code: readable only.
8. DIGITAL INPUT
The free contactdigital input isprogrammable in five differentconfigurationsby the “i1F”
parameter.
8.1 DOOR SWITCH INPUT (i1F = dor)
It signals the door status and the corresponding relay output status through the “odc”
parameter:
no = normal (any change);
Fan = Fan OFF;
CPr = Compressor OFF;
F_C = Compressor and fan OFF.
Since the door is opened, after the delay time set through parameter “did”, the door
alarm is enabled, the display shows the message “dA” and the regulation restarts.
The alarm stops as soon as the external digital input is disabled again. With the door
open, the high and low temperature alarms are disabled.
8.2 GENERIC ALARM (i1F = EAL)
As soon as the digital input is activated the unit will wait for “did” time delay before
signalling the “EAL” alarm message. The outputs status don’t change. The alarm stops
just after the digital input isde-activated.
8.3 SERIOUS ALARM MODE (i1F = bAL)
When the digital input is activated, the unit will wait for “did” delay before signalling the
“CA” alarm message. The relay outputs are switched OFF. The alarm will stop as soon
as the digital input is de-activated.
8.4 PRESSURE SWITCH (i1F = PAL)
If during the interval time set by “did” parameter, the pressure switch has reached the
number of activation of the “nPS” parameter, the “CA” pressure alarm message will be
displayed. The compressor and the regulation are stopped. When the digital input is ON
the compressor is always OFF.
If the nPS activation in the did time is reached, switch off and on the instrument
to restart normal regulation.
8.5 START DEFROST (i1F = dFr)
It starts a defrost ifthere are the right conditions. After the defrost is finished, the normal
regulation will restart only ifthe digital input is disabled otherwise the instrument will wait
until the “MdF” safety time is expired.
8.6 INVERSION OF THE KIND OF ACTION: HEATING-COOLING (i1F = Htr)
This function allowsto invert the regulation of the controller: from cooling to heating and
viceversa.
8.7 DIGITAL INPUTS POLARITY
The digitalinput polarity dependson the “i1P” parameter.
i1P=CL: the input is activated by closing the contact.
i1P=OP: the inputis activated byopening the contact
9. INSTALLATION AND MOUNTING
Instrument XR60C shall be mounted on vertical panel, in a
29x71 mm hole, and fixed using the special bracket
supplied.
To obtain an IP65 protection grade use the front panel
rubber gasket (mod. RG-C) as shown in figure.
The temperature range allowed for correct operation is 0÷60 °C. Avoid places subject
to strong vibrations, corrosive gases, excessive dirt or humidity. The same
recommendations apply to probes.Let air circulate by the cooling holes.
10. ELECTRICAL CONNECTIONS
The instrument is provided with screw terminal block to connect cables with a cross
section up to 2,5 mm2. Before connecting cables make sure the power supply complies
with the instrument’s requirements. Separate the probe cables from the power supply
cables, from the outputs and the power connections. Do not exceed the maximum
current allowed on each relay, in case of heavier loadsuse a suitable external relay.
10.1 PROBE CONNECTION
The probes shall be mounted with the bulb upwards to prevent damages due to casual
liquid infiltration. It is recommended to place the thermostat probe away from air
streams to correctly measure the average room temperature. Place the defrost
termination probe among the evaporator fins in the coldest place, where most ice is
formed,far from heatersor from the warmest place during defrost, to preventpremature
defrost termination.
11. HOW TO USE THE HOT KEY
11.1 HOW TO PROGRAM A HOT KEY FROM THE INSTRUMENT (UPLOAD)
1. Program one controller with the front keypad.
2. When the controller is ON, insert the “Hot key” and push 9
9
key; the "uPL"
message appears followed a byflashing“End”
3. Push “SET” key and the End will stop flashing.
4. Turn OFF the instrument remove the “Hot Key”, then turn it ON again.
NOTE: the “Err” message is displayed for failed programming. In this case push again
9
9
key if you want to restart the upload again or remove the “Hot key” to abort the
operation.
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11.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY
(DOWNLOAD)
1. Turn OFF the instrument.
2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the
Controller ON.
3. Automatically the parameter list of the “Hot Key” is downloaded into the
Controller memory, the “doL” message is blinking followed a byflashing“End”.
4. After 10 seconds the instrument will restart working with the new parameters.
5. Remove the “Hot Key”..
NOTE the message “Err” is displayed for failed programming. In this case turn the unit
off and then on if you want to restart the download again or remove the “Hot key” to
abort the operation.
12. ALARM SIGNALS
Message
Cause Outputs
“P1” Room probe failure Compressor outputaccording to par.
“Con” and “COF”
“P2” Evaporator probe failure Defrost end is timed
“HA” Maximum temperature alarm Outputsunchanged.
“LA” Minimum temperature alarm Outputsunchanged.
“dA” Door open Compressor and fans restarts
“EA” External alarm Output unchanged.
“CA” Serious external alarm (i1F=bAL) All outputs OFF.
“CA” Pressure switch alarm (i1F=PAL) All outputs OFF
12.1 ALARM RECOVERY
Probe alarms “P1” and “P2” start some seconds after the fault in the related probe; they
automatically stop some seconds after the probe restarts normal operation. Check
connections before replacing the probe.
Temperature alarms “HA” and “LA” automatically stop as soon as the thermostat
temperature returns to normal values and when defrost starts.
Alarms “EA” and “CA” (with i1F=bAL)recover as soon as the digital input is disabled.
Alarm “CA” (with i1F=PAL) recovers only by switching off and on the instrument.
13. TECHNICAL DATA
Housing: self extinguishing ABS.
Case: XR60C frontal 32x74 mm; depth 60mm;
Mounting: XR60C panel mounting in a 71x29mm panel cut-out
Protection: IP20; Frontal protection: IP65 with frontal gasketRG-C (optional).
Connections: Screw terminal block ≤2,5 mm2wiring.
Power supply: according to the model: 12Vac/dc, ±10%; 24Vac/dc, ±10%; 230Vac
±10%, 50/60Hz, 110Vac ±10%, 50/60Hz
Power absorption: 3VA max
Display: 3 digits, red LED,14,2 mm high.
Inputs: 2 NTC orPTC probes.
Digital input: free contact
Relay outputs
compressor: SPST relay 8(3) A, 250Vac or SPST relay 16(6)A; 250Vac
defrost: SPDT relay 8(3) A, 250Vac
fan: SPST relay 8(3) A, 250Vac
Data storing: on the non-volatile memory(EEPROM).
Kind of action: 1B; Pollution grade: normal;Software class: A.
Operating temperature: 0÷60 °C;Storage temperature: -30÷85 °C.
Relative humidity: 20÷85% (no condensing)
Measuring and regulation range: NTC probe:-40÷110°C (-40÷230°F);
PTC probe: -50÷150°C (-58÷302°F)
Resolution: 0,1 °C or 1°C or 1 °F (selectable).
Accuracy (ambient temp. 25°C): ±0,7 °C ±1 digit
14. CONNECTIONS
14.1 XR60C – 12VAC/DV OR 24 VAC/DV
N.C.
Line
8(3)A250V
a


8(3)A
Max
16A
Comp
Def
Fan
Evap.
Room

Hot Key
NOTE: The compressorrelay is8(3)A or 16(6)A according to the model.
24Vac/dc supply: connectto the terminals 7 and 8.
14.2 XR60C – 120VAC OR 230 VAC
N.C.
Line
8(3)A250V
a


8(3)A
Max
16A
Comp
Def Fan
Evap.
Room

Hot Key
NOTE: The compressorrelay is8(3)A or 16(6)A according to the model.
120Vac supply: connectto the terminals 6 and 7.
15. DEFAULT SETTING VALUES
Label Name Range °C/°F
Set Set point LS÷US -5/0
Hy Differential 0,1÷25.5°C/ 1÷255°F 2/4
LS Minimum set point -50°C÷SET/-58°F÷SET -50/-58
US Maximum set point SET÷110°C/ SET ÷230°F 110/230
Ot Thermostat probe calibration -12÷12°C /-120÷120°F 0
P2P Evaporator probe presence n=not present; Y=pres. y
OE Evaporator probe calibration -12÷12°C /-120÷120°F 0
OdS Outputs delay at start up 0÷255 min 0
AC Anti-short cycle delay 0 ÷50 min 1
CCt Continuos cycle duration 0.0÷24.0h 0.0
COn Compressor ON time with faulty probe 0 ÷255 min 15
COF Compressor OFF time with faulty probe 0 ÷255 min 30
CF Temperature measurement unit °C÷°F °C/°F
rES Resolution in=integer; dE= dec.point dE/-
Lod Probe displayed P1;P2 P1
tdF Defrost type EL=el. heater; in= hot gas EL
dtE Defrost termination temperature -50 ÷50 °C 8/46
IdF Interval between defrost cycles 1 ÷120 ore 6
MdF (Maximum) length for defrost 0 ÷255 min 30
dSd Start defrost delay 0÷99min 0
dFd Displaying during defrost rt, it, SEt, DEF it
dAd MAX display delay after defrost 0 ÷ 255 min 30
Fdt Draining time 0÷120 min 0
dPo First defrost after startup n=after IdF; y=immed. n
dAF Defrost delay after fast freezing 0 ÷ 23h e 50’ 0.0
Fnc Fan operating mode C-n, o-n, C-y, o-Y o-n
Fnd Fan delay after defrost 0÷255min 10
Fct Differential of temperature for forced
activation of fans 0÷50°C 10
FSt Fan stop temperature -50÷50°C/-58÷122°F 2/35
ALc Temperat. alarms configuration rE= related to set;
Ab = absolute Ab
ALU MAXIMUM temperature alarm Set÷110.0°C; Set÷230°F 110/230
ALL Minimum temperature alarm -50.0°C÷Set/ -58°F÷Set -50/-58
ALd Temperature alarm delay 0 ÷255 min 15
dAO Delay of temperature alarm at start up 0 ÷23h e 50’ 1.30
i1P Digital input polarity oP=opening;CL=closing CL
i1F Digital input configuration EAL=extern. alarm; bAL=lock regulation;
PAL=press. switch; dor=door switch;
dEF=defrost; LHt=disabled; Htr = heating
- cooling
dor
did Digital input alarm delay 0÷255min 15
Nps Number of activation of pressure switch 0 ÷15 15
odc Compressor and fan status when open
door: no = normal; Fan = Fan OFF;CPr =
Compr. OFF; F_C = Compr & fan OFF F-C
PbC Kind of probe Ptc;ntc ntc/Ptc
dP1 Room probe display -- --
dP2 Evaporator probe display -- --
rEL Software release -- 2.7
Ptb Map code -- -
Hidden parameters
Dixell s.r.l. Z.I. Via dell’Industria, 27
32010 Pieve d’Alpago (BL)ITALY
tel.+39 - 0437 - 98 33 - fax +39 -0437 - 98 93 13
(PDLO GL[HOO#GL[HOOFRP  KWWSZZZGL[HOOFRP
6

Thermo Scientific Jewett Blood Bank Refrigerators Installation and Operation
6 INSTALLATION AND REMOVAL OF
DRAWERS
INSTALLATION
1.Place drawer on top of slides and push into rear stops.
2.Align slot in drawer slide with lock in tabs and press in place.
Lock in tabs must be fully engaged in slots, otherwise damage
may result to door pan.
REMOVAL
1.Press lock in tabs inward towards drawer slide.
2.Lift front of drawer up and pull clear of slides.
.
DRAWER SLIDE MOUNTING INSTRUCTIONS
1.Push into slots in rear standard as shown in Step # 1. Make
certain that the opposite drawer slides are in the same slots in the
opposite standards.
2.Push into slots in front standard and press down as shown in
Step # 2. If necessary, tap into place.
.
7 SHELVES (OPTIONAL)
Units for which optional shelves have been ordered come with
shelves pre-installed at the factory.
If you need to adjust or re-install shelves, follow the instructions
on the following insert page.
Note: Units with interior lights use two different kinds of shelf
clips: long clips on the right side and short clips on the left.
7

Thermo Scientific Jewett Blood Bank Refrigerators Installation and Operation
8 Hinge And Latch Adjustment
8.1 Hinge Adjustment
1. Remove exterior hinge cover plate by opening the
refrigerator door. Place a screwdriver under interior
portion of cover and gently pry cover outward. Pull
straight out. Close cover.
2. Loosen the three (3) screws "B" which hold adjusting
plate "C" in position.
3. To tighten gasket seal, place hand against exterior of
door near hinges; gently press in on door so gasket sits
firmly against cabinet face. Tighten screws "B".
4. When adjustment is complete, it hinges are adjusted so
gasket seal is too tight, door will tend to spring open.
Door must be readjusted. To test gasket seal, insert a
dollar bill (or piece of paper of similar size) between
the gasket and the cabinet opening. Close door; a slight
resistance to removal of the dollar bill (test strip)
should be felt. Check the perimeter of the door. If the
latch is loose, see latch-adjusting information.
5. Replace cover plate "A."
Note: To accomplish different offsets, shims are utilized.
If replacing hinges, make sure to reuse any shims
furnished on the cabinet.
8.2 Latch and Strike Adjustment
1. Latch is fastened to door.
2. For up or down adjustment (proper latch engagement)
loosen mounting screws "B".
3. Strike plate "C" remains in position.
4. Move strike "D" up or down as required and tighten
screws "B" when adjustment is satisfactory. No play
will be present in the latch handle with the door closed.
5. For in and out adjustment (proper gasket seal) loosen
screw "E". Adjust in or out as required and tighten
screw when adjustment is satisfactory.
6. The stainless steel hex head cap screw is 10/32" X
5/16" long. Use box wrench, open-end wrench, or
ratchet to tighten. Do not use a nut driver or pliers.
Note: If replacing latch and strike assembly, make sure
to reuse any shims furnished on the cabinet.
8

Thermo Scientific Jewett Blood Bank Refrigerators Installation and Operation
WEEE Compliance
WEEE Compliance. This product is required to comply with the European
Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96EC.
It is marked with the following symbol. Thermo Fisher Scientific has contracted
with one or more recycling/disposal companies in each EU Member State, and this
product should be disposed of or recycled through them. Further information on
our compliance with these Directives, the recyclers in your country, and
information on Thermo Scientific products which may assist the detection of
substances subject to the RoHS Directive are available at www.thermo.com/
WEEE Konformittät. Dieses Produkt muss die EU Waste Electrical & Electronic
Equipment (WEEE) Richtlinie 2002/96EC erfüllen. Das Produkt ist durch
folgendes Symbol gekennzeichnet. Thermo Fisher Scientific hat Vereinbarungen
getroffen mit Verwertungs-/Entsorgungsanlagen in allen EU-Mitgliederstaaten
und dieses Produkt muss durch diese Firmen widerverwetet oder entsorgt werden.
Mehr Informationen über die Einhaltung dieser Anweisungen durch Thermo
Scientific, dieVerwerter und Hinweise die Ihnen nützlich sein können, die Thermo
Fisher Scientific Produkte zu identizfizieren, die unter diese RoHS.
Anweisungfallen, finden Sie unter www.thermo.com/
Conformità WEEE. Questo prodotto deve rispondere alla direttiva dell’ Unione
Europea 2002/96EC in merito ai Rifiuti degli Apparecchi Elettrici ed Elettronici
(WEEE). È marcato col seguente simbolo.Thermo Fischer Scientific ha stipulato
contratti con una o diverse società di riciclaggio/smaltimento in ognuno degli Stati
Membri Europei. Questo prodotto verrà smaltito o riciclato tramite queste
medesime. Ulteriori informazioni sulla conformità di Thermo Fisher Scientific con
queste Direttive, l’elenco delle ditte di riciclaggio nel Vostro paese e informazioni
sui prodotti Thermo Scientific che possono essere utili alla rilevazione di sostanze
soggette alla Direttiva RoHS sono disponibili sul sito www.thermo.com/
Conformité WEEE. Ce produit doit être conforme à la directive euro-péenne
(2002/96EC) des Déchets d’Equipements Electriques et Electroniques (DEEE). Il
est marqué par le symbole suivant. Thermo Fisher Scientific s’est associé avec une
ou plusieurs compagnies de recyclage dans chaque état membre de l’union
européenne et ce produit devraitêtre collecté ou recyclé par celles-ci. Davantage
d’informations sur laconformité de Thermo Fisher Scientific à ces directives, les
recycleurs dans votre pays et les informations sur les produits Thermo Fisher
Scientific qui peuvent aider le détection des substances sujettes à la directive
RoHS sont disponibles sur www.thermo.com/
Great Britain
Deutschland
Italia
France

Important
For your future reference and when contacting the factory, please have the
following information readily available:
Model Number:
Serial Number:
Date Purchased:
The above information can be found on the dataplate attached to the
equipment. If available, please provide the date purchased, the source of
purchase (manufacturer or specific agent/rep organization), and purchase
order number.
IF YOU NEED ASSISTANCE:
SALES DIVISION
Phone: [phone]
1-866-9-THERMO
LABORATORY PARTS and SERVICE
Phone: [phone]
TECHNICAL SUPPORT
Phone: [phone]

Thermo Fisher Scientific Inc.
275 Aiken Road
Asheville, NC 28804
United States
www.thermofisher.com
306098H01 Rev. E