Medivance ARCTIC SUN 5000 User manual

SERVICE MANUAL
SimplyAdvancedTM
TEMPERATURE MANAGEMENT SYSTEM

AS5000 SERVICE MANUAL
TABLE OF CONTENTS
TEMPERATURE MANAGEMENT SYSTEM
Chapter 1 – Getting Started ....................................................1
Introduction.................................................................................1
Indications for Use......................................................................1
Warnings and Cautions .............................................................1
System Setup ............................................................................2
System Navigation......................................................................3
Therapy Screens ........................................................................3
Fill Reservoir ..............................................................................3
Manual Control ..........................................................................4
Functional Verication ................................................................4
Chapter 2 Components ...........................................................4
Hydraulic Components ...............................................................4
Electronic Components ..............................................................5
Chapter 3 Theory of Operation ...............................................6
Main Hydraulic Circuits...............................................................6
Ancillary Hydraulic Circuits.........................................................6
Electronic Control System ..........................................................6
Chapter 4 – Maintenance ........................................................6
Maintenance Schedule...............................................................6
Clean the External Surfaces ......................................................6
Inspect Connectors and Cables ................................................6
Clean the Condenser .................................................................6
Replenish Cleaning Solution ......................................................7
Replenish Internal Cleaning Solution ........................................7
Inspect Screen Protector............................................................7
Inspect Fluid Delivery Line ........................................................7
Calibration .................................................................................7
Chapter 5 – Advanced Setup ..................................................7
Chapter 6 – Alarms and Alerts ...............................................8
Alarms .......................................................................................8
Main Safety Alarms ....................................................................8
Non-Recoverable Alarms ...........................................................8
Recoverable Alarms ..................................................................8
Alerts .........................................................................................8
Alarms and Alert Listing..............................................................9
Chapter 7 – Troubleshooting ................................................14
7.1 Diagnostic Screen ..............................................................14
7.2 Event Log ...........................................................................14
7.3 General Troubleshooting Guide..........................................14
7.4 Troubleshooting Assistance................................................15
Chapter 8 – Component Replacement..................................16
8.1 Tools Required....................................................................21
8.2 Drain the Control Module....................................................21
8.3 Remove Back Panel...........................................................21
8.4 Remove Outer Shell ...........................................................22
8.5 Removing / Replacing Circuit Cards from Card Cage........23
8.6 Replacing Upper Components ...........................................24
8.7 Removing Internal Components from Chiller Frame ..........25
8.8 Separating the Internal Components into
Two Sections ......................................................................26
8.9 Replacing Mixing Pump......................................................27
8.10 Replacing Circulation Pump .............................................28
8.11 Replacing AC Chiller Pump ..............................................29
8.12 Replacing DC Chiller Pump..............................................30
8.13 Replacing Heater..............................................................31
8.14 Replacing Flowmeter........................................................32
8.15 Replacing Control Panel...................................................32
8.16 Replacing Chiller ............................................................33
8.17 Replacing Tank Temperature Sensor Harness .................33
8.18 Replacing Manifold Harness.............................................34
8.19 Replacing Inlet/Outlet Manifold ........................................35
8.20 Replacing Level Sensor....................................................35
8.21 Replacing Power Module .................................................36
8.22 Replacing Mains Voltage Circuit Card.............................36
8.23 Replacing the AC Breaker Harness.................................37
8.24 Installing Transmission Interface Module .........................37
Chapter 9 – Calibration / Calibration Check ........................38
9.1 Calibration Test Unit ...........................................................38
9.2 When to Perform a Calibration or Calibration Check..........38
9.3 Calibration Setup................................................................38
9.4 Performing a Calibration ...................................................38
Appendix A: Product Specications ...................................39
Arctic Sun®5000/5000E Temperature Management System
Specications .........................................................................40
Appendix B: Symbols ............................................................41
Appendix C: Electromagnetic Compatibility........................42
Appendix D - Spare Parts and Accessories.........................44
Appendix E - Temperature Cables ........................................45
Appendix F - Shipping ...........................................................46
Appendix G - Warranty...........................................................47
Appendix H - Transmission Interface Module
Data Output Format.........................................48

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1
Chapter 1 – Getting Started
Introduction
The Arctic Sun®Temperature Management System is a device
that monitors and controls patient temperature within a range of
32°C to 38.5°C (89.6°F to 101.3°F). The system consists of the
Model 5000 and disposable ArcticGel™Pads. The Arctic Sun®
Temperature Management System delivers temperature-controlled
water ranging between 4°C and 42°C (39.2°F and 107.6°F) through
the pads adhered to the patient’s skin. This results in highly efcient
conductive heat transfer between the water and the patient.
The Arctic Sun®5000 Temperature Management System was
designed with ease of service in mind and incorporates several
features that will assist clinical engineers in maintaining its
performance. These features include: negative pressure ow
that eliminates water leaks, real-time air leak detection, and
performance monitoring. It also includes access to alarm logs and
past system case data, real-time diagnostic information, simplied
calibration and maintenance, and modular construction allowing for
simple repair if required.
Indications for Use
The Arctic Sun®Temperature Management System is a thermal
regulating system indicated for monitoring and controlling patient
temperature.
Warnings and Cautions
Warnings
• Do not use the Arctic Sun®Temperature Management System in
the presence of ammable agents because an explosion and/or
re
may result.
• Do not use high frequency surgical instruments or endocardial
catheters while the Arctic Sun®Temperature Management
System is in use.
• There is a risk of electrical shock and hazardous moving parts.
There are no user serviceable parts inside. Do not remove
covers. Refer servicing to qualied personnel.
• Power cord has a hospital grade plug. Grounding reliability can
only be achieved when connected to an equivalent receptacle
marked “hospital use” or “hospital grade”.
• When using the Arctic Sun®Temperature Management System,
note that all other thermal conductive systems, such as water
blankets and water gels, in use while warming or cooling with the
Arctic Sun®Temperature Management System may actually alter
or interfere with patient temperature control.
• Do not place ArcticGel™Pads over transdermal medication
patches as warming can increase drug delivery, resulting in
possible harm to the patient.
Cautions
• This product is to be used by or under the supervision of trained,
qualied medical personnel.
• Federal law (USA) restricts this device to sale, by or on the order of
a physician.
• Use only distilled or sterile water. The use of other uids will damage
the Arctic Sun®Temperature Management System.
• When moving the Arctic Sun® Temperature Management System
always use the handle to lift the controller over an obstacle to avoid
over balancing.
• The patient’s bed surface should be located between 30 and 60
inches (75 cm and 150 cm) above the oor to ensure proper ow
and minimize risk of leaks.
• The clinician is responsible to determine the appropriateness of
custom parameters. When the system is powered off, all changes
to parameters will revert to the default unless the new settings have
been saved as new defaults in the Advanced Setup screen. For small
patients (≤30 kg) it is recommended to use the following settings:
Water Temperature High Limit ≤40 °C (104 °F); Water Temperature
Low Limit ≥10 °C (50 °F); Control Strategy = 2.
• The operator must continuously monitor patient temperature when
using Manual Control and adjust the temperature of the water
owing through the pads accordingly. Patient temperature will not
be controlled by the Arctic Sun®Temperature Management System
in Manual Control.
• Due to the system’s high efciency, Manual Control is not
recommended for long duration use. The operator is advised to use
the automatic therapy modes (e.g. Control Patient, Cool Patient,
Rewarm Patient) for automatic patient temperature monitoring and
control.
• The Arctic Sun®Temperature Management System will monitor and
control patient core temperature based on the temperature probe
attached to the system. The clinician is responsible for correctly
placing the temperature probe and verifying the accuracy and
placement of the patient probe at the start of the procedure.
• Medivance supplies temperature simulators (xed value resistors)
for testing, training and demonstration purposes. Never use
this device, or other method, to circumvent the normal patient
temperature feedback control when the system is connected to the
patient. Doing so exposes the patient to the hazards associated with
severe hypo- or hyper-thermia.
• Medivance recommends measuring patient temperature from a
second site to verify patient temperature. Medivance recommends
the use of a second patient temperature probe connected to the
Arctic Sun®Temperature Management System Temperature 2 input
as it provides continuous monitoring and safety alarm features.
Alternatively, patient temperature may be veried periodically with
independent instrumentation.
• The displayed temperature graph is for general information
purposes only and is not intended to replace standard medical
record documentation for use in therapy decisions.
• Patient temperature will not be controlled and alarms are not
enabled in Stop Mode. Patient temperature may increase or
decrease with the
Arctic Sun®Temperature Management System in Stop Mode.
• Carefully observe the system for air leaks before and during
use. If the pads fail to prime or a signicant continuous air leak
is observed in the pad return line, check connections. If needed,
replace the leaking pad. Leakage may result in lower ow rates
and potentially decrease the performance of the system.
• The Arctic Sun®Temperature Management System is for use
only with the ArcticGel™Pads.
• The ArcticGel™Pads are only for use with the Arctic Sun®
Temperature Management Systems.
• The ArcticGel™Pads are non-sterile for single patient use. Do
not reprocess or sterilize. If used in a sterile environment, pads
should be placed according to the physician’s request, either
prior to the sterile preparation or sterile draping. ArcticGel™Pads
should not be placed on a sterile eld.
• Use pads immediately after opening. Do not store pads once the
kit has been opened.
• Do not place ArcticGel™Pads on skin that has signs of
ulceration, burns, hives, or rash.
• While there are no known allergies to hydrogel materials, caution
should be exercised with any patient who has a history of skin
allergies or sensitivities.
• Do not allow circulating water to contaminate the sterile eld
when patient lines are disconnected.
• The water content of the hydrogel affects the pad’s adhesion
to the skin and conductivity, and therefore, the efciency of
controlling patient temperature. Periodically check that pads
remain moist and adherent. Replace pads when the hydrogel
no longer uniformly adheres to the skin. Replacing pads at least
every 5 days is recommended.

AS5000 SERVICE MANUAL
2
• Do not puncture the ArcticGel™Pads with sharp objects.
Punctures will result in air entering the uid pathway and may
reduce performance.
• If accessible, examine the patient’s skin under the ArcticGel™
Pads often, especially those at higher risk of skin injury. Skin
injury may occur as a cumulative result of pressure, time and
temperature. Do not place bean bag or other rm positioning
devices under the ArcticGel™Pads. Do not place positioning
devices under the pad manifolds or patient lines.
• The rate of temperature change and potentially the nal
achievable patient temperature is affected by many factors.
Treatment application, monitoring and results are the
responsibility of the attending physician. If the patient does not
reach target temperature in a reasonable time or the patient is
not able to be maintained at the target temperature, the skin may
be exposed to low or high water temperatures for an extended
period of time which may increase the risk for skin injury. Ensure
that pad sizing/coverage and custom parameter settings are
correct for the patient and treatment goals, water ow is greater
than or equal to 2.3 liters per minute and the patient temperature
probe is in the correct place. For patient cooling, ensure
environmental factors such as excessively hot rooms, heat lamps,
and heated nebulizers are eliminated and patient shivering
is controlled. Otherwise, consider increasing minimum water
temperature, modifying target temperature to an attainable
setting or discontinuing treatment. For patient warming, consider
decreasing maximum water temperature, modifying target
temperature to an attainable setting or discontinuing treatment.
• Due to underlying medical or physiological conditions, some
patients are more susceptible to skin damage from pressure
and heat or cold. Patients at risk include those with poor tissue
perfusion or poor skin integrity due to diabetes, peripheral
vascular disease, poor nutritional status, steroid use or high
dose vasopressor therapy. If warranted, use pressure relieving or
pressure reducing devices under the patient to protect from skin
injury.
• Do not allow urine, antibacterial solutions or other agents to pool
underneath the ArcticGel™Pads. Urine and antibacterial agents
can absorb into the pad hydrogel and cause chemical injury and
loss of pad adhesion. Replace pads immediately if these uids
come into contact with the hydrogel.
• Do not place ArcticGel™Pads over an electrosurgical grounding
pad. The combination of heat sources may result in skin burns.
• If needed, place debrillation pads between the ArcticGel™pads
and the patient’s skin.
• Carefully remove ArcticGel™Pads from the patient’s skin at the
completion of use. Discard used ArcticGel™Pads in accordance
with hospital procedures for medical waste.
• The USB data port is to be used only with a standalone USB ash
drive. Do not connect to another mains powered device during
patient treatment.
• Users should not use cleaning or decontamination methods
different from those recommended by the manufacturer without rst
checking with the manufacturer that the proposed methods will not
damage the equipment. Do not use bleach (sodium hypochlorite)
as it may damage the system.
• Medivance will not be responsible for patient safety or equipment
performance if the procedures to operate, maintain, modify or
service the Medivance Arctic Sun®Temperature Management
System are other than those specied by Medivance. Anyone
performing the procedures must be appropriately trained and
qualied.
System Setup
Unpack
1) Unpack the Arctic Sun®Temperature Management System
Control Module and accessories.
2) Allow the control module to remain upright for at least 2 hours
prior to completing the installation and setup procedure in order
to allow the chiller oil to settle. Damage to the chiller compressor
may result otherwise.
Connections
1) Use only Medivance approved cables and accessories with the
Arctic Sun®Temperature Management System Control Module.
Connect the Fluid Delivery Line, Patient Temp 1 cable, Patient
Temp 2 cable (optional) and Fill Tube to the back of the control
module.
2) Plug the Power Cord into the wall outlet. Position Arctic Sun®
Temperature Management System so that access to the power
cord is not restricted.
Fig. 1-1 Arctic Sun®Temperature Management System
Control Module
Power Switch
Patient
Temp
Out
Fluid
Delivery
Line
Power Cord
Equipotential
Stud
Patient
Temp 1
Strain Relief
Patient
Temp 2
Patient
Temp Cable
Fill Tube
Parking
Fill Tube/Port
Drain Ports
Air Filter

ENGLISH
3
System Navigation
Fig. 1-2 Start-up screen with training module
A training module including a section for Clinical Engineering
(Setup and Maintenance) is available from the start-up screen.
Fig. 1-3 Therapy Selection screen
When the self-test is complete, the Patient Therapy Selection
screen will appear on the control panel.
Therapy Screens
Fig. 1-4 Normothermia Therapy screen
Fig. 1-5 Hypothermia Therapy screen
The following information is displayed and functions are available
from the Normothermia and Hypothermia therapy screens.
A Cool Patient window (Hypothermia screen)
Control Patient window (Normothermia screen)
B Rewarm Patient window (Hypothermia screen)
C Patient Monitoring area
D Patient Temperature
E Patient Temperature 2 (if enabled)
F Patient Temperature Trend Indicator
G System Monitoring area
H Water Temperature
I Water Flow Rate
J Reservoir Water Level
K Therapy Graph
L Manual Control button (if enabled)
M Empty Pads button
N Fill Reservoir button
O Therapy Selection / Screen Lock button
P Temperature Units button (if enabled)
Q Stop button
R Help button
Fill Reservoir
1) Fill the reservoir with sterile or distilled water only.
2) Four liters of water will be required to ll the reservoir at
initial installation.
3) Add one vial of Arctic Sun®Temperature Management System
Cleaning Solution to the sterile or distilled water.
4) From the Patient Therapy Selection screen, press either the
Normothermia or Hypothermia button, under the New Patient
heading.
5) From the Hypothermia or Normothermia therapy screen,
press the Fill Reservoir button.
6) The Fill Reservoir screen will appear. Follow the directions on
the screen.
Fig. 1-6 Fill Reservoir screen
A
C
D
E
F
G
H
I
J
K
L
M
N
Q
P
O
R
A
C
D
E
F
G
H
I
J
K
L
M
N
Q
P
O
R
B

AS5000 SERVICE MANUAL
4
Manual Control
Manual Control allows the user to directly set the water temperature
in the Circulating Tank. It does not require a patient temperature
probe to be connected and therefore can be used for troubleshooting
and diagnostic purposes.
If Manual Control has been disabled it will need to be enabled. To
enable Manual Control, from the Normothermia Therapy screen
press the Adjust button located at the bottom center of the screen.
From the Control Patient-Adjust screen, press the More button.
This will display the Normothermia Settings screen (Fig. 1-9).
Press the adjust button for manual control. Select the desired water
temperature and time. Press Save. Enabling Manual Control will not
automatically change the default settings.
When enabled, the Manual Control button is visible in the upper right
hand corner of the Therapy screen. Pressing the Manual Control
button allows the user to change the water target and duration, and
to start Manual Control.
Fig 1-7 Control Patient panel from Normothermia screen
Fig 1-8 Control Patient - Adjust panel
(appears after user presses Adjust on Control Patient panel)
Fig 1-9 Normothermia Settings screen
Fig. 1-10 Manual Control panel (appears after user presses Manual
Control on main Normothermia or Hypothermia Screen)
Functional Verication
Certicates of Conformance for calibration, performance, and
electrical safety tests are included with the shipment of each
Arctic Sun®5000 Temperature Management System. To verify the
system will heat and cool properly, perform the following:
1) Power On the control module
2) From the Patient Therapy Selection screen, press the
Hypothermia button to display the Hypothermia therapy
screen.
3) From the Hypothermia therapy screen, press the Manual
Control button to open the Manual Control window.
4) Use the Up and Down arrows to set the Manual Control water
target temperature to 40 °C and the duration to 30 minutes.
5) Press the Start button to initiate Manual Control. Allow at least
3 minutes for the system to stabilize.
6) Monitor the ow rate and water temperature in the System
status area on the Hypothermia therapy screen.
7) Verify that the ow rate reaches at least 1.5 liters/minute.
8) Verify that the water temperature increases to 30 °C.
9) Press the Stop button.
10)Set the Manual Control water target temperature to 4 °C and the
duration to 30 minutes.
11)Press the Start button to initiate Manual Control.
12) Monitor the ow rate and water temperature in the System
status area of the Hypothermia therapy screen. Verify that the
water temperature drops to 6 °C.
13)Press the Stop button to stop Manual Control
14)Press the Cancel button to close the Manual Control window
15)Power Off the control module.
Chapter 2 Components
Hydraulic Components
Fluid Delivery Line – reusable dual lumen tubing that connects the
Control Module to the ArcticGel™Pads.
Pumps
Circulation Pump – pumps water from the Circulation Tank
through the ArcticGel™Pads.
Mixing Pump – Transfers cold water from the Chiller Tank to
the Circulation Tank.
Chiller Pump – continuously circulates the water from the
Chiller Tank through the chiller’s evaporator.
Tanks
Circulation Tank – contains temperature-controlled water that
supplies the ArcticGel™Pads.
Chiller Tank – contains water that is maintained at
approximately 4°C.
Supply Tank – contains water that is used to replenish the
Circulation Tank when the ArcticGel™ Pads are lled.

ENGLISH
5
Sensors
Outlet Monitor Temperature - T1 – located within the
Circulation Tank. Used to monitor the temperature of water that
supplies the ArcticGel™Pads.
Outlet Control Temperature - T2 – located within the
Circulation Tank. Used to control the temperature of water that
supplies the ArcticGel™Pads.
Inlet Temperature – T3 – located within the Inlet/Outlet
Manifold. Monitors the temperature of water returning from the
ArcticGel™Pads.
Chiller Temperature – T4 – located within the Chiller Tank.
Used to control temperature of water in the Chiller Tank.
Pressure Sensor – located within the Inlet/Outlet Manifold.
Used to maintain a constant negative pressure within the
ArcticGel™Pads by controlling the speed of the Circulation
Pump.
Flow Sensor – located at the outlet of the Circulation Pump.
Monitors the ow rate in the Circulation Circuit.
Valves
Conditioning Valve – located within the Inlet/Outlet Manifold.
When open, allows water to circulate internally when priming or
preconditioning.
Fill Valve – located within the Inlet/Outlet Manifold. When open,
allows the Circulation Pump to draw water into the system.
Vent Valve – located within the Inlet/Outlet Manifold. When
open, allows air to supply ArcticGel™Pads and the displaced
water to be returned to the Supply Tank.
Heater – located in the Circulation Tank. The heater consists of
4 heating rods. The heating element within each rod is in series
with a non-resettable thermal fuse, which protects each rod
against an over-temperature condition.
Inlet/Outlet Manifold – connects to Fluid Delivery Line and Fill
Tube. Contains the valves, the inlet temperature sensor, and the
pressure sensor.
Chiller – a refrigeration unit that continuously cools the
evaporator.
Electronic Components
Cables – power cord and temperature cables. Additional
adapter cables are available to purchase for use with different
manufacturers’ temperature probes. In addition, temperature out
cables can be purchased to allow output of patient temperature
to an external monitor. Please refer to the Temperature Cables
in Appendix C.
The Mains Voltage Circuit Card – located below the Supply
Tank. Includes electromechanical relays to control mains power
to the chiller and heater. Also includes solid state relays to
control power to each of the four heating elements.
Power Module – located next to the Mains Voltage Circuit Card.
Converts AC mains voltage to 24 VDC.
Power Circuit Card – located within the Card Cage. Converts
24 VDC to lower DC voltages used by the system.
The Processor Circuit Card – located within the Card Cage.
Includes both the control and monitor microprocessors and
associated circuitry, including nonvolatile memory.
The Isolation Circuit Card – located within the Card Cage.
Provides electrical isolation for the Patient Temperature
circuits to a level of 1500V. Also provides a simulated YSI 400
compatible patient temperature signal (Temperature Out) to an
external monitor.
The Input/Output Circuit Card – located within the Card Cage.
Contains circuits that monitor water temperature, pressure and
ow. Provides control for Circulation and Mixing Pumps, valves,
and Chiller.
The Backplane Circuit Card – located at the back of the Card
Cage. Interconnects the circuit cards within the card cage.
Control Panel – located at the top of the Control Module.
Consists of touch screen, microprocessor, hard drive, USB
interface, and USB-powered speaker.
Fig. 2-1 The Hydraulic Schematic
MIXING
PUMP
CHILLER
PUMP
CHILLER
TANK CIRCULATION TANK
CIRCU-
LATION
PUMP
EVAPORATOR
CHILLER AIR FLOWAIR FLOW
FLOW METER
SUPPLY TANK
CHILLER
CIRCUIT CIRCULATING CIRCUIT
INLET/OUTLET
MANIFOLD
ATMOSPHERE
HEATER T2T1
T4
DRAIN PORTS
VENT
FILL LINE
ARCTICGEL
PAD
BYPASS LINE FV
T3
P1
BV
VV
KEY
VV Vent Valve
BV Bypass Valve
FV Fill Valve
P1 Pressure Sensor
T1 Outlet Monitor Temperature
T2 Outlet Control Temperature
T3 Inlet Temperature
T4 Chiller Temperature
VALVE
FLUID
DELIVEY
LINE
VALVE
FLUID
DELIVERY
LINE

AS5000 SERVICE MANUAL
6
Chapter 3 Theory of Operation
Main Hydraulic Circuits
Circulation Circuit – circulates temperature-controlled water
from the Circulation Tank through the ArcticGel™Pads and
returns to the inlet port of the Circulation Pump. The speed of
the Circulation Pump varies to maintain -7.0 PSI (0.5 bar) at
the Pressure Sensor. Since water in the ArcticGel™ Pads ows
under negative pressure, a break in the circuit, such as a pad
being punctured or disconnected, will result in air leaking into the
system instead of water leaking out. Air in the system is removed
in the Circulation Tank and exits through the tank vent. When
warmer water is required, the heaters located in the Circulation
Tank are energized. The heater power is dependent upon the
ow rate through the circulation tank and the difference between
the water temperature and the commanded water temperature.
The heater has four elements that are cycled on sequentially to
minimize power uctuations in the mains supply.
Chiller Circuit – maintains the water in the Chiller Tank at
approximately 4°C. Water is gravity-fed into the centrifugal
Chiller Pump and is then pumped through the chiller’s evaporator
and returned to the Chiller Tank. The refrigerant system’s cooling
capacity is controlled by a refrigerant valve. When the Chiller
Circuit approaches 4°C, the cycling of the valve can be heard.
Mixing Circuit – when cold water is required to cool the
Circulation Circuit, the Mixing Pump pulls water from the
Circulation Tank and meters it into the Chiller Tank. Cold water
overows from the Chiller Tank into the Circulation Tank. The
speed of the mixing pump is dependent upon the ow rate
through the circulation tank and the difference between the water
temperature and the commanded water temperature.
Ancillary Hydraulic Circuits
Filling – When lling, the Fill Valve is opened and water is drawn
up through the valve by the Circulation Pump. Water returns
through the Circulation Tank to the Supply Tank. Negative
Pressure must be generated at the inlet of the Inlet/Outlet
Manifold for lling to occur, therefore the Fluid Delivery Line must
be attached. ArcticGel™Pads should not be attached to the
Fluid Delivery Line during lling.
Preconditioning – The system can be programmed to
precondition water prior to initiating therapy. In this mode, the
Bypass Valve opens and allows temperature-controlled water to
circulate internally to bring the Circulation Tank and Supply Tank
water to a pre-programmed temperature.
Empty Pads – To empty water from the ArcticGel™Pads, the
Vent Valve is opened, which enables air to enter the pads. Water
is pulled from the pads by the Circulation Pump and returned
through the Circulation Tank to the Supply Tank.
Electronic Control System
The electronic system consists of two independent subsystems:
control and monitor. The control subsystem is responsible for
delivering therapy to the patient. The monitor subsystem conrms
the safe operation of the control subsystem. Each subsystem has
an independent microprocessor, audio alarm, and both water and
patient temperature sensing circuits.
The control subsystem performs the following functions:
• Command interpretation from the Control Panel
• System information update to the Control Panel
• Circulation Tank water temperature control (T1 & T2)
• Circulation Pump speed control from pressure sensor (P1)
• Patient temperature measurement (PT1)
• Temperature Out signal generation
• Chiller Tank water temperature control (T4)
• Valve control (VV, BV and FV)
• Chiller control
The monitor subsystem performs the following functions:
• Redundant command interpretation from Control Panel
• Circulation Tank temperature monitoring (T1)
• Patient temperature measurement (PT2)
• Circulation Pump power interrupt control
• Power Circuit Card voltage monitoring
Chapter 4 – Maintenance
Maintenance Schedule
Procedure Interval
Clean external surfaces As required
Inspect connectors and cables 6 months
Clean the condenser 6 months
Replenish Cleaning Solution 6 months
Inspect Screen Protector 6 months
Calibration
Every 2000 hours or 250
uses, whichever occurs
rst, as indicated by system
display
Inspect Fluid Delivery Line 6 months
Inspect manifold O-rings for wear 6 months
Inspect foam adherence to hoses During all internal service
procedures
Required accessories and supplies can be ordered separately.
Refer to Appendix B for the Spare Parts and Service Items.
Clean the External Surfaces
Cleaning should include the exterior of the Control Module,
Fluid Delivery Lines, Temperature Cables and the power cord.
Clean visible contamination from the surfaces with a dampened
cloth using a mild detergent. Rinse and dry thoroughly. Use
a soft cloth dampened with disinfectant according to hospital
protocol. Medivance has qualied and approves the use of the
following types of disinfectants for exterior surfaces: sodium
hypochlorite, isopropyl alcohol, and quaternary ammonium.
Inspect Connectors and Cables
Inspect the patient temperature cable(s) and power cord for integrity.
Ensure temperature cables are properly strain relieved. Ensure
power cord bracket is secure.
Clean the Condenser
A dirty chiller condenser will signicantly reduce the cooling capacity
of the control module. To clean the condenser, wipe the dust from
the exterior grill using a soft cloth. Depending on the quality of your
institution’s air, periodically remove the back cover and vacuum or brush
the condenser ns. At a minimum the condenser ns should be cleaned
annually. Maintenance activities should be performed by qualied
personnel.

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7
Replenish Cleaning Solution
Replenish Internal Cleaning Solution
Contact Medivance Customer Service to order internal
cleaning solution.
To replenish the internal cleaning solution:
1) Drain the reservoir.
• Turn control module power Off.
• Attach the drain line to the two drain ports on the back of
the control module. Place the end of the drain line into a
container. The water will passively drain into the container.
2) Rell the reservoir.
• From the Hypothermia therapy screen or the Normothermia
therapy screen, press the Fill Reservoir button.
• The Fill Reservoir screen will appear. Follow the directions
on the screen.
• Add one vial of Arctic Sun®Temperature Management
System cleaning solution to the rst bottle of distilled or
sterile water.
• The lling process will automatically stop when the reservoir
is full. Continue to replace the bottles of sterile or distilled
water until the lling process stops.
• When the Fill Reservoir process is complete, the screen
will close.
Inspect Screen Protector
The Control Panel’s touchscreen is supplied with a disposable
screen protector. If it becomes damaged, it can be removed by
lifting the edge and carefully peeling it from the screen. To ensure
dust and particulates are removed, clean the touchscreen using
isopropyl alcohol. Remove the blue liner from the screen protector.
Then carefully apply the protector to the screen with the liner side
down against the screen.
Inspect Fluid Delivery Line
1. Power On the system
2. From the Patient Therapy Selection screen press the
Hypothermia button to display the Hypothermia therapy screen.
3. From the Hypothermia therapy screen, press the Manual
Control button to open the Manual Control window.
4. Set the Manual Control water target temperature to 28 °C and
the duration to 30 minutes.
5. Connect a shunt to a set of uid delivery line ports.
6. Press the Help button and then press the Help Index button.
Select the topic Maintenance and Service and sub topic
System Diagnostics then press the Display button. Verify that
inlet pressure is -7 ± 0.2.
7. Repeat on all valves. If inlet pressure is out of range, replace the
two valves that the shunt is connected to.
8. Ensure that the shunt is removed before device is put back
in service.
Calibration
To perform a calibration on the Arctic Sun®5000 Temperature
Management System, press the Advanced Setup button on the
Therapy Selection Screen. Press the Start button and follow the
on-screen directions. Refer to Chapter 9 for additional instructions.
Chapter 5 – Advanced Setup
Use the Advanced Setup screen to view the current settings
and modify the settings for the following parameters. To modify
any parameter setting, press the Adjust button to the right of the
parameter.
Location / Time Settings
• Language
• Number Format
• Current Time
• Date Format
• Current Date
The following functions can be initiated from the Advanced Setup
screen.
• Download Patient Data: The Patient Data for the last 10 (ten)
cases are stored on the Arctic Sun®Temperature Management
System hard drive. This data is maintained when the Arctic Sun®
Temperature Management System is powered down, or in the
event of a total loss of power.
• Calibration
• Total Drain
• Save All Settings As Default
• Upload custom le
Additionally, the following information can be viewed in the
Advanced Setup screen.
• Software Versions
• Last Calibration Date
• Next Calibration Due
To access the Advanced Setup screen:
1) Press Advanced Setup button on the Patient Therapy Selection
screen.
2) The Advanced Setup screen will be displayed.
To access the Additional Protocol Selection screen:
Refer to the Arctic Sun® Temperature Management System Help
screens for information regarding additional protocol setup.
Fig. 5 -1 Advanced Setup

AS5000 SERVICE MANUAL
8
Chapter 6 – Alarms and Alerts
The Arctic Sun®Temperature Management System safety system
continually monitors the state of the device and the patient, and
issues alarms or alerts to notify the user of conditions that may
interfere with patient safety or system performance.
There are two types of conditions: Alarms and Alerts.
An Alarm noties the user that a condition that may potentially
pose an unsafe situation with respect to the patient or the device.
An Alarm is a High Priority condition that requires immediate
operator response.
An Alert informs the user about patient and device status without
interrupting the procedure. An Alert is a Medium Priority condition
that requires prompt operator response.
Alarms
An Alarm is denoted by an audio signal that repeats every
10 seconds until the Alarm is cleared. The Alarm screen will appear
that displays the alarm number, alarm title, a description of the
problem or conditions that triggered the alarm, and solutions and
instructions for troubleshooting and resolving the alarm condition.
If certain Alarm conditions are not acknowledged by the operator
within 2 minutes, a Reminder tone will sound. All Alarm settings are
maintained in the event of a power interruption.
Fig. 6-1 Alarm screen
Main Safety Alarms
While there are multiple alarms and safety features in the Arctic
Sun® Temperature Management System, there are ve main safety
alarms that will place the device into Stop mode until the condition
is addressed.
Alarm Specication
High Patient Temperature 39.5 °C (103.1 °F)
Low Patient Temperature 31.0 °C (87.8 °F)
High Water Temperature 42.5 °C / 44 °C (108.5 °F / 111.2 °F)
Low Water Temperature 3.0 °C / 3.5 °C (37.4 °F / 38.3 °F)
System Self-Test Failure At device power ON
Each time the Arctic Sun®Temperature Management System is
powered On, a system self test for the independent safety alarm is
automatically run. This test simulates a “water high temperature”
fault situation on both the primary and secondary water temperature
sensors. Both the primary and secondary safety systems must
respond to the fault and be veried by the opposing safety system.
If either safety systems do not respond appropriately either an
alarm 80 or 81 will be issued. Contact Customer Support.
Non-Recoverable Alarms
If an Alarm condition occurs that prevents proper use of the device
or proper patient treatment (such as the ve main safety alarms
discussed above), the system is placed into Stop mode and will not
allow therapy to continue. This type of Alarm is known as Non-
Recoverable. If this situation occurs, cycle the device power (turn
device Off then On). If the alarm recurs contact Customer Support.
Recoverable Alarms
Other Alarms that temporarily Stop the device until the user
is able to correct the cause and clear the Alarm are classied
as Recoverable. If the condition that initiated the alarm is not
addressed and problem persists, the Alarm will recur.
If a Recoverable Alarm occurs:
1) When an alarm is issued the device is placed into Stop mode.
2) Read the displayed instructions.
3) Note the Alarm number.
4) Press the Close button to clear the alarm.
5) Follow the instructions to correct the alarm condition. Perform
the actions in the order listed until the alarm condition is
resolved.
6) Once you have cleared the alarm, press the Start button in the
therapy window to restart therapy. You will hear a tone and a
voice stating “Therapy Started”. Additionally, the active therapy
window and the Arctic Sun®Temperature Management System
icon will blink.
7) If the condition does not resolve, contact Customer Support.
Alerts
Alerts are denoted by an audio signal that repeats every 25
seconds. The Alert screen will appear that displays the alert
number, alert title, a description of the problem that triggered
the alert, and solutions and instructions for troubleshooting and
resolving the alert condition.
Fig. 6-2 Alert screen
If an Alert occurs:
1) Read the displayed instructions.
2) Note the Alert number.
3) Press the Close button to clear the alert.
4) Follow the instructions to correct the alert condition. Perform the
actions in the order listed until the alarm condition is resolved. If
the condition does not resolve, contact Customer Support.
5) Refer to the Arctic Sun®Temperature Management System Help
screens for additional information regarding alarms and alerts.

ENGLISH
9
Alarm/
Alert
Message Displayed Problem
01 Patient Line Open The system is detecting that the uid delivery line or patient line is
open to air or has signicant air in the line.
The uid pump is working at the expected speed but the ow rate is
less than 1 liter per minute and the uid pressure is less than -6 psi.
02 Low Flow The ow rate is less than 50% of the maximum ow rate measured
since the last power On or Empty Pads, or the ow rate is less than
300 ml/minute.
03 Water Reservoir Low At power On or the end of the Empty Pads cycle or the Fill Reservoir
cycle, the system uid level sensors are detecting that the water
reservoir is low. There is only enough water in the reservoir to run one
patient therapy.
04 Water Reservoir Below Minimum At the end of the Empty Pads cycle, the system uid level sensors are
detecting that the water reservoir is empty or below the minimum level
required to operate the system.
05 Water Reservoir Empty At power On or the end of the Empty Pads cycle, the system uid
level sensors are detecting that the water reservoir is empty or below
the minimum level required to operate the system.
07 Empty Pads Not Complete A signicant amount of water was still being returned from pads at the
end of the Empty Pads cycle.
08 Patient Temperature 1 high The Patient Temperature 1 reading is above 39.5°C (103.1°F), and
the water temperature is above 39.5°C (103.1°F), and the system is
continuing to warm the patient when the system is in a patient control
mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
09 Patient Temperature 1 Above High
Patient Alert
In Normothermia Therapy: The Patient Temperature 1 reading is
above the High Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 1 reading is above
the High Patient Alert setting in Hypothermia Settings.
10 Patient Temperature 1 Low The Patient Temperature 1 reading is below 31°C (87.8°F), and
the water temperature is below 31°C (87.8°F), and the system is
continuing to cool the patient when the system is in a patient control
mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
11 Patient Temperature 1 Below Low
Patient Alert
In Normothermia Therapy: The Patient Temperature 1 reading is
below the Low Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 1 reading is below
the Low Patient Alert setting in Hypothermia Settings.
12 Patient Temperature 1 High The Patient Temperature 1 reading is above 39.5°C (103.1°F), and
the water temperature is above 39.5°C (103.1°F) while in Manual
Control mode.
Patient temperature is not automatically controlled while in Manual
Control Mode.
13 Patient Temperature 1 Low The Patient Temperature 1 reading is below 31°C (87.8°F), and the
water temperature is below 31°C (87.8°F) when the system is in
Manual Control mode.
Patient temperature is not automatically controlled while in Manual
Control mode.
Alarm Alert
Alarms and Alert Listing
The following table consists of a listing of the alarms and alerts that a user might observe during
use of the Arctic Sun®Temperature Management System 5000. Text highlighted in yellow denotes
an alert, while red denotes an alarm.

AS5000 SERVICE MANUAL
10
14 Patient Temperature 1 Probe Out
of Range
Patient Temperature 1 probe is not detected, or the temperature
reading is below of the lower limits of the display range (10°C /50°F)
while in a patient control mode (e.g. Control Patient, Cool Patient or
Rewarm Patient).
15 Unable to Obtain a Stable Patient
Temperature
Patient temperature discontinuity. A signicant change in the patient
temperature reading for more than 10 minutes while in a patient
control mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
16 Patient Temperature 1 Probe Out
of Range
Patient Temperature 1 probe is not detected, or the temperature
reading is above the upper limit of the display range (44°C/111.2°F)
while in a patient control mode (e.g. Control Patient, Cool Patient or
Rewarm Patient).
17 Patient Temperature 1 Calibration
Error
The system is unable to internally check the calibration of the Patient
Temperature 1 channel within ± 1.0°C while in a patient control mode
(e.g. Control Patient, Cool Patient or Rewarm Patient).
18 Patient Temperature 1 Calibration
Error
The system is unable to internally check the calibration of the Patient
Temperature 1 channel within ± 1.0°C when the system is in Manual
Control mode.
19 Patient Temperature 1 Calibration
Error
The system is unable to internally check the calibration of the Patient
Temperature 1 channel within ± 1.0°C while in a patient control mode
(e.g. Control Patient, Cool Patient or Rewarm Patient).
20 Patient Temperature 1 Calibration
Error
The system is unable to internally check the calibration of the Patient
Temperature 1 channel within ± 1.0°C when the system is in Manual
Control mode.
21 Patient Temperature 2 High The Patient Temperature 2 reading is above 39.5°C (103.1°F), and
the water temperature is above 39.5°C (103.1°F), and the system
is continuing to warm the patient while in a patient control mode
(e.g. Control Patient, Cool Patient or Rewarm Patient).
22 Patient Temperature 2 Above High
Patient Alert
In Normothermia Therapy: The Patient Temperature 2 reading
is above the High Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 2 reading is above
the High Patient Alert setting in Hypothermia Settings.
23 Patient Temperature 2 Low The Patient Temperature 2 reading is below 31°C (87.8°F), and
the water temperature is below 31°C (87.8°F), and the system is
continuing to cool the patient when the system is in a patient control
mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
24 Patient Temperature 2 Below Low
Patient Alert
In Normothermia Therapy: The Patient Temperature 2 reading is
below the Low Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 2 reading is below
the Low Patient Alert setting in Hypothermia Settings.
25 Patient Temperature 2 High The Patient Temperature 2 reading is above 39.5°C (103.1°F), and
the water temperature is above 39.5°C (103.1°F) while in Manual
Control mode.
Patient temperature is not automatically controlled while in Manual
Control mode.
26 Patient Temperature 2 Low The Patient Temperature 2 reading is below 31°C (87.8°F), and the
water temperature is below 31°C (87.8°F) when the system is in
Manual Control Mode.
Patient temperature is not automatically controlled while in Manual
Control Mode.
27 Patient Temperature 2 Probe Out
of Range
Patient Temperature 2 probe is not detected, or the temperature
reading is below the lower display range (10°C /50°F).

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11
28 Patient Temperature 2 Probe Out
of Range
Patient Temperature 1 probe is not detected, or the temperature
reading is above the upper limit of the display range (44°C/111.2°F)
while in a patient control mode (e.g. Control Patient, Cool Patient or
Rewarm Patient).
29 Patient Temperature 2 Calibration
Error
The system is unable to internally check the calibration of the Patient
Temperature 2 channel within ± 1.0°C when the system is in a patient
control mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
Patient Temperature 2 channel is made inactive.
30 Patient Temperature 2 Calibration
Error
The system is unable to calibrate the Patient Temperature 2 channel
within ± 1.0°C when the system is in Manual Control mode.
Patient Temperature 2 channel is made inactive.
31 Patient Temperature 2 Calibration
Error
The system is unable to calibrate the Patient Temperature 2
channel within ± 1.0°C when the system is in a patient control mode
(e.g. Control Patient, Cool Patient or Rewarm Patient).
Patient Temperature 2 channel is made inactive.
32 Patient Temperature 2 Calibration
Error
The system is unable to calibrate the Patient Temperature 2 channel
within ± 1.0°C when in Manual Control mode.
Patient Temperature 2 channel is made inactive.
33 Water Temperature High The primary outlet water temperature is above 44°C (111.2°F).
34 Water Temperature High The primary outlet water temperature is above 42.5°C (108.5°F)
35 Water Temperature Low The primary outlet water temperature is below 3.5°C (38.3°F).
36 Water Temperature High The secondary outlet water temperature is above 44°C (111.2°F).
37 Water Temperature High The secondary outlet water temperature is above 43°C (109.4°F).
38 Water Temperature Low The secondary outlet water temperature is below 3.0°C (37.4°F)
40 Unable to Maintain Stable Water
Temperature
In Manual Control mode, the system is unable to control the water
temperature within 1.0°C/°F of the water target after 25 min. in the
current mode or since last change to water target temperature.
41 Low Internal Flow Insufcient internal ow during system priming or pre-conditioning.
43 User Settings Not Saved The user settings are invalid and are unable to be saved. The saved
system default settings are restored.
44 Invalid System Log Entry One or more of the entries into the system event log is invalid.
The system event log is used by clinical engineering personnel for
product service.
This issue does not affect the performance of the system to deliver
patient therapy.
45 AC Power Lost The AC power was lost while the power switch was in the On position.
46 Control Panel Communication The control panel is not communicating with the system.
47 Control Panel Communication The control panel is not communicating with the system.
48 Patient Temperature Out Invalid The Patient Temperature Out calibration data in non-volatile memory
is invalid.
50 Patient Temperature 1 Erratic Patient Temperature 1 discontinuity. There has been a signicant
change in patient temperature over the past 8 minutes.
51 Patient Temperature 1 Below
Control Range
Patient Temperature 1 is less than 31°C (87.8°F) while in a patient
control mode (e.g. Control Patient, Cool Patient, or Rewarm Patient).

AS5000 SERVICE MANUAL
12
52 Extended Period of Cold Water The circulating water temperature has been below 10°C (50°F) for 8
of the previous 10 hours.
The alert will recur after 1 hour if the condition continues. After the
device has issued 11 extended cold water exposure alerts, it will issue
a prolonged cold water exposure alarm.
Extended periods of cold water delivery may increase the risk for skin
injury. Assess patient’s skin underneath the ArcticGel™Pads.
53 Prolonged Cold Water Exposure The circulating water temperature has been below 10°C (50°F) for a
prolonged period of time. The extend period of cold water alert has
been issued 11 times. The alert was rst issued after the system
sensed that the water temperature was below 10°C (50°C) for 8 of
10 hours. The alert was then issued an additional 10 times every
1 hour because the situation was not resolved.
Prolonged cold water exposure may increase the risk for skin injury.
Assess patient’s skin underneath the ArcticGel™Pads.
60 Non-Recoverable System Error Control processor and Monitor processor start up synchronization
fault.
61 Non-Recoverable System Error Control processor parameter memory fault.
62 Non-Recoverable System Error Monitor processor parameter memory fault.
64 Non-Recoverable System Error Unable to enable pump power (Control processor).
65 Non-Recoverable System Error Unable to enable pump power (Monitor processor).
66 Non-Recoverable System Error Unable to disable pump power (Control processor).
67 Non-Recoverable System Error Unable to disable pump power (Monitor processor).
71 Non-Recoverable System Error Primary outlet water temperature sensor out of range – high resistance.
72 Non-Recoverable System Error Primary outlet water temperature sensor out of range – low resistance.
73 Non-Recoverable System Error Secondary outlet water temperature sensor out of range – high resistance.
74 Non-Recoverable System Error Secondary outlet water temperature sensor out of range – low resistance.
75 Non-Recoverable System Error Inlet water temperature sensor out of range – high resistance.
76 Non-Recoverable System Error Inlet water temperature sensor out of range – low resistance.
77 Non-Recoverable System Error Chiller water temperature sensor out of range – high resistance.
78 Non-Recoverable System Error Chiller water temperature sensor out of range – low resistance.
79 Non-Recoverable System Error Primary and secondary outlet water temperature sensors differ by
greater than 1°C.
80 Non-Recoverable System Error The control processor failed to detect a simulated water temperature
fault.
81 Non-Recoverable System Error The monitor processor failed to detect a simulated water temperature
fault.
83 Non-Recoverable System Error Monitor processor communications fault.
84 Non-Recoverable System Error Control processor communications fault.
86 Non-Recoverable System Error Power supply voltage fault.
99 Non-Recoverable System Error Program unexpectedly aborted.
100 Unable to Save Default Settings The system is unable to save the default settings in Advanced Setup.
101 No USB Drive Found During Save When attempting to Download Patient Data, no ash drive was found
in the USB port.

ENGLISH
13
102 Control Panel Locked Approximately 2 minutes after Control Patient, Cool Patient, Rewarm
Patient or Manual Control is activated, the control panel screen will
lock to prevent inadvertently changing parameters during patient
therapy.
An image of a padlock will appear over the Therapy Selection button
when the screen is locked.
103 Unable to Communicate Settings There was an error communicating Hypothermia Settings,
Normothermia Settings or Advanced Setup settings to the system.
104 Manual Control End The Manual Control has reached the end of its set duration.
105 Cool Patient End Cool Patient timer has reached the end of its set duration and
Rewarming Begins in Hypothermia Settings is set t o Manually.
See Help Index topic Hypothermia Settings – Rewarming Begins for
more information.
106 Non-Recoverable System Error Graphic user interface communications lost with control module
control processor.
107 Non-Recoverable System Error Graphic user interface communications lost with control module
monitor processor
108 Operating Mode Incorrect The system has not successfully entered the commanded therapy
mode.
109 Esophageal Probe Recommended Control Strategy 3 has been chosen which allows the Patient Target
temperature to be set between 32.0°C and 32.9°C (89.6°F to 91.2°F).
For patient target temperatures between 32ºC to 32.9ºC (89.6ºF to
91.2ºF) an esophageal temperature probe should be used. During
the hypothermia induction phase, the esophageal temperature tracks
real-time core temperature changes more closely than bladder or
rectal temperature. Due to this lag time when using bladder or rectal
temperature sites, actual patient core temperatures may be lower
than measured. Therefore, the use of esophageal temperature is
recommended for patient temperature control below 33ºC.
110 Data File Not Readable The data le which contains the system default settings has been
corrupted. The system has automatically reset the system to the
factory defaults.
112 Conrm Return to Cooling Phase Treatment is currently programmed to be in the Rewarming phase,
but the Start button in the Cool Patient window was pressed.
113 Reduced Water Temperature
Control
The system has detected that the water temperature has not been
controlled as accurately as expected in the last 30 minutes.
This situation may be temporary due to sudden patient temperature
changes, interruption in water ow, or blockage of air ow by an
obstruction or dirty lter.
114 Treatment Stopped Treatment has been stopped for the last ten (10) minutes.
115 Prolonged Warm Water Exposure The circulating water temperature has been between 38°C (100.4°F)
and 42°C (107.6°F) for a prolonged period of time.
Prolonged warm water exposure may increase the risk for skin injury.
Assess patient’s skin underneath the ArcticGelTM pads.
116 Patient Temperature 1 Change Not
Detected
Patient Temperature 1 has not changed for an extended period
of time.
117 Patient Temperature 1 Change Not
Detected
Patient Temperature 1 has not changed for an extended period
of time.
118 Hospital Form Not Found When attempting to Upload Hospital Form, le was not found or it
was not readable.

AS5000 SERVICE MANUAL
14
Chapter 7 – Troubleshooting
7.1 Diagnostic Screen
The Diagnostic screen allows the user to view the ow, pressure,
patient temperatures and individual water temperature sensor
readings. This information is valuable during the troubleshooting
process. The Diagnostic screen can be accessed from the
Maintenance and Service Topic in the Help Index.
Fig. 7-1 System Diagnostics
7.2 Event Log
The Event Log will record non-recoverable system alarms and
recoverable operational alarms and alerts from the last 10 cases.
The Event Log can be accessed from the Maintenance and Service
Topic in the Help Index.
Fig. 7-2 Help Index
Fig. 7-3 Event Log
7.3 General Troubleshooting Guide
A calibration check is an effective method for verifying proper
operation of the device. Many technical issues with the
Arctic Sun®5000 Temperature Management System can be
diagnosed during a calibration check. See Chapter 9 for the
Calibration Check procedure.
Case data recorded at one minute intervals such as water ow
rate, pressure, water and patient temperatures, pump and heater
commands for the previous 10 cases are available for download
from the USB port. This can be valuable information when
attempting to troubleshoot reported problems from previous
cases. The download feature is available from the Advanced
Settings screen.
The following are the most common issues and methods
of resolution:
7.3.1 Device Not Controlling Patient Temperature
The Arctic Sun®5000 Temperature Management System has a
sophisticated control algorithm which calculates the appropriate
water temperature based on a comparison of the patient’s actual
temperature versus the programmed target temperature. The
system also monitors the actual water temperature versus the
commanded water temperature. If the system fails to deliver the
commanded temperature within a short period of time, alarm 113
will occur. This is the best indication as to whether the system was
controlling appropriately during patient therapy. If this alarm has
occurred, it can be viewed in the Event Log viewable on the device,
as described in Section 7.2.
7.3.2 Patient Does Not Cool
To verify the cooling function of the device, perform the following
steps:
• Check that the water temperature limits have not been adjusted
too high on the Normothermia or Hypothermia Therapy Setting
screen.
• With the device at room temperature power the device on,
wait 5 minutes, and check the Chiller temperature (T4 on the
Diagnostic screen). This temperature should be below 10°C
(50°F).
• Connect the Fluid Delivery Line and a Shunt Tube, initiate
Manual Control, and set water target to 4° C (39°F).
• Verify that the water temperature lowers to less than 10°C
(50°F) within 10 minutes.
• If no problems seem evident, perform a calibration check.

ENGLISH
15
7.3.3 Patient Does Not Warm
To verify the heating function of the device, perform the following
steps:
• Verify with clinical staff that ow rate during therapy was at least
1 lpm as water ow rates below this will limit heater power.
• Check that the water temperature limits have not been adjusted
too low on the Normothermia or Hypothermia Therapy Setting
screen.
• Connect the Fluid Delivery Line and the Shunt Tube, initiate
Manual Control, and set water target to 42° C (108°F).
• Verify water temperature increases from room temperature to at
least 35° C (95°F) within 10 minutes.
• If unsuccessful, remove back panel and shell and check Heater
power connection on Mains Voltage Circuit Card.
• Test heating elements as follows:
Remove heater power connection from mains voltage circuit
card then check resistance of heating elements.
Fig. 7-4 Location of connector
Fig. 7-5 Pins to test for each heating element
For 115V devices, resistance should be 70-81 ohm each element.
For 230V devices, resistance should be 280-327 ohm each
element.
• If no problems seem evident, consider performing a calibration
check.
7.3.4 Device Will Not Fill
If the device will not ll, perform the following steps:
• Ensure the Fluid Delivery Line is connected with no Shunt Tube
or pads connected. The Fluid Delivery Line must be connected
in order for the device to ll.
• Replace the ll tube. Attempt lling to check for resolution.
• To conrm Fluid Delivery Line does not leak air, remove the
Fluid Delivery Line, place thumb over the left port of the Inlet/
Outlet Manifold, and repeat ll process.
7.3.5 Control Panel Will Not Power On
To verify proper operation of the Control Panel, perform the
following steps:
• Check that mains power is available by ensuring the amber light
is lit on the power switch.
• Remove the back panel and shell. Check connection at top of
card cage to Control Panel and verify the connection is seated
properly.
7.3.6 Low Flow Alarm
If the device shows a Low Flow alarm, perform the following steps:
• Power device on; ensure Fluid Delivery Line is connected.
• With no pads or Shunt Tube attached, start the device in Manual
Control and allow 3 minutes for bypass ow to stabilize.
• Using the Diagnostic screen, verify a ow rate of > 1.5 lpm and
a Circulation Pump Command of less than 70%. If this cannot
be achieved it indicates an air leak either internal to the device
or in the Fluid Delivery Line.
• To conrm there is no internal air leak, remove Fluid Delivery Line
and place thumb over the left port. Repeat the test in step 3.
• To conrm there are no leaks in the Fluid Delivery Line valves,
attach a shunt tube to any set of valves and, initiate Manual
Control. Watch for water to ow through tube, then without
stopping, move shunt tube quickly to the opposite branch of the
Fluid Delivery Line. Watch for water ow through the tube. Place
the Fluid Delivery line on the oor. Press Stop. Remove the
shunt tube. Monitor the Fluid Delivery Line valves for any water
leaks over the next 5 minutes.
• To conrm the pad connector seals are not damaged, inspect
the orange seal at the end of each valve and look for damage.
Actuate each valve and ensure it moves freely.
7.4 Troubleshooting Assistance
For further assistance with troubleshooting, contact your distributor
or Medivance Technical Support.

AS5000 SERVICE MANUAL
16
Chapter 8 – Component Replacement
The Arctic Sun® 5000 Temperature Management System is designed and built to have a high degree of reliability; however, failures can
occur. Use the troubleshooting methods in Chapter 6 or consult with Medivance Technical Support to determine the root cause component
for the failure. Once this root cause component for the failure has been determined, follow the appropriate procedure for removal and
replacement of the component. An abbreviated list of spare parts and accessories is located in Appendix B. For parts not listed, contact
Medivance Technical Support. In general, reverse the order of removal to install a replacement component. Please note any special
instructions to the contrary.
Caution: Observe precautionary electrostatic discharge control procedures (ESD) when working with circuit card assemblies.
Fig. 8-1 Control Module, rear view after removal of Back Panel
Power Switch
Card Cage
Inlet/Outlet Manifold
Inlet/Outlet Ports
Serial Number Label
Power Inlet Module
Drain Ports
Chiller Condenser
Chiller Frame
Shell

ENGLISH
17
Fig. 8-2 Control Module, front inside view
Card Cage
Main Harness:
• Pump Connections
• Control Panel Connection
• Chiller Power Connection
Chiller Evaporator
Chiller Frame
Compressor
Manifold Harness
Level Sensor Cable
Flowmeter Cable
A/C Breaker Harness
Tank
Heater Power Cables

AS5000 SERVICE MANUAL
18
Fig. 8-3 Control Module, right inside view
Card Cage
Chiller Frame
Inlet/Outlet Manifold
Chiller Pump
Chiller Fan
Chiller Evaporator
Hot Gas Bypass Valve