COVIDIEN, COVIDIEN with logo, and Covidien logo are U.S. and internationally registered
trademarks of Covidien AG. Other brands are trademarks of a Covidien company.
This manual, for use by qualified personnel only, contains instructions for
servicing, testing, and maintaining the Covidien WarmTouch™ Convective
Warming Unit. The manual includes all information necessary for
troubleshooting problems with the warming unit and replacing affected
components, including parts lists, replacement procedures, and system
diagrams.
Safety InformationPage 1-2
ESD (Electrostatic Discharge) PrecautionsPage 1-7
Tools Required for ServicePage 1-7
Serial Number, Software Version, and Error CodesPage 1-9
Component Disposal - WEEE DirectivePage 1-11
Labeling SymbolsPage 1-12
Obtaining Technical AssistancePage 1-14
Related DocumentsPage 1-17
Warranty InformationPage 1-17
1-1
Introduction
1.2 Safety Information
This section lists safety information associated with the warming unit. Where
appropriate in the manual, individual Warnings and Cautions are repeated as
reminders. Please familiarize yourself with this safety information before servicing the warming unit.
For reference, additional Warnings and Cautions that apply to operating the
warming system in the clinical environment are provided in Warnings (Patient
Treatment) on page 1-4 and Cautions (Patient Treatment) on page 1-6.
1.2.1 Safety Symbol Definitions
Table1-1.Safety Symbol Definitions
SymbolDefinition
WARNING
Warnings alert users to potential serious outcomes (death, injury, or adverse
events) to the patient, user, or environment.
Caution
Cautions alert users to exercise appropriate care for safe and effective use of the
product.
Note
Notes provide additional guidelines or information.
1.2.2 Warnings (Service)
WARNING:
Possible electric shock hazard. Grounding reliability can be achieved only
when the warming unit is connected to a suitable mains outlet with
protective earth grounding.
WARNING:
The use of accessories or cables with the warming system other than those
indicated in this manual may result in non-compliance with the specifications
listed in Electromagnetic Compatibility (EMC) on page 13-4.
1-2 Service Manual
WARNING:
No modification of this equipment is allowed. Modification can result in
death, injury, or property damage.
WARNING:
Before attempting to open or disassemble the warming unit, disconnect the
power cord from the AC power source.
WARNING:
Do not operate the warming unit with the filter enclosure removed.
1.2.3 Cautions (Service)
Safety Information
Caution:
Do not spray, pour, or spill any liquid on the warming unit, its accessories,
connectors, switches, or openings in the case.
Caution:
The HEPA filter must
whichever comes first.
Caution:
Operation of the warming system may affect or be affected by other devices
in the vicinity due to electromagnetic interference (EMI). If interference
occurs, try increasing the distance between devices, repositioning the cabling,
or plugging the devices into separate outlet circuit branches. Reference
Electromagnetic Compatibility (EMC) on page 13-4 for additional guidance.
Caution:
The institution should follow local governing ordinances and recycling
instructions regarding disposal or recycling of filter and device components or
end of life of the product.
be replaced every 2,000 hours of operation or 365 days,
Caution:
Observe ESD (electrostatic discharge) precautions when servicing the
warming unit.
Service Manual 1-3
Introduction
WARNING:
WARNING:
WARNING:
1.2.4 Warnings (Patient Treatment)
The following additional Warnings apply to operating the warming system in
a clinical environment for patient treatment:
Possible explosion hazard. Do not use the device in the presence of flammable
anesthetics or in an oxygen-rich environment.
No free-hosing. Keep hose nozzle connected to a WarmTouch™ blanket at all
times or thermal injury may occur.
Possible burn or infection hazard. Do not allow warming blanket to come in
contact with open wounds. All patients’ wounds should be covered while
using the warming system.
WARNING:
Possible patient burns. Use caution and consider discontinuing use on
patients during vascular surgery when an artery to an extremity is clamped.
Do not apply the warming system to ischemic limbs.
WARNING:
Thermal injury may occur if the warming unit hose comes into contact with
the patient.
WARNING:
Possible fire hazard. Prevent the blanket material from coming into contact
with a laser or an electrosurgical active electrode.
WARNING:
Continuously monitor the patient's temperature during treatment with the
warming system. Use good clinical judgment in selecting and adjusting
temperature settings based on the patient's warming needs and response to
treatment.
1-4 Service Manual
WARNING:
Using the warming system on patients with transdermal medication patches
may increase the rate of drug delivery, potentially causing harm to the
patient.
WARNING:
Thermally conductive materials, such as water, gel, and similar substances,
can decrease the patient's body temperature when the warming unit is
switched off.
WARNING:
Do not use the warming system during magnetic resonance imaging (MRI)
scanning.
Safety Information
WARNING:
Do not operate the warming system in a stacked configuration with other
equipment.
WARNING:
Do not operate the warming system adjacent to other equipment. If such a
configuration cannot be avoided, first test the warming system in the
intended configuration to verify normal operation.
WARNING:
Use WarmTouch™ blankets only as directed. Carefully follow the Instructions
for Use provided with the blankets regarding proper handling and
positioning.
WARNING:
WarmTouch™ blankets are for single patient use only.
WARNING:
Clean the warming unit after each use, as described in this manual.
WARNING:
If a fault or sudden change in performance occurs in the warming system,
discontinue use. Notify your sales/service center. The unit must be serviced by
qualified personnel using procedures provided in the Service Manual.
Service Manual 1-5
Introduction
WARNING:
Caution:
Possible electrical shock hazard. To reduce the risk of electrical shock, do not
remove the back case. Servicing is only to be done by qualified personnel.
1.2.5 Cautions (Patient Treatment)
The following additional Cautions apply to operating the warming system in a
clinical environment for patient treatment:
Federal (U.S.A.) law restricts the use of the warming system to sale by or on
the order of a physician.
Caution:
Only use WarmTouch™ blankets with the WarmTouch warming unit. Do not
attempt to use other types of blankets with the warming unit. Similarly, do
not attempt to use WarmTouch blankets with other types of warming units.
Caution:
The USB port on the warming unit is for service use by qualified personnel
only. During patient treatment, a USB cable must not
warming unit.
be connected to the
1-6 Service Manual
ESD (Electrostatic Discharge) Precautions
1.3 ESD (Electrostatic Discharge) Precautions
Caution:
Observe ESD (electrostatic discharge) precautions when servicing the
warming unit.
To avoid damaging ESD-sensitive components while service the warming unit,
follow all appropriate ESD guidelines. These guidelines include:
•Using an ESD wrist strap, properly connected to a reliable ground.
•Using an anti-static mat.
•Handling ESD-sensitive components properly. (Do not touch connection points,
ing, cellophane tape, etc.) away from the work area.
1.4 Tools Required for Service
•Electrical leakage tester
•Ground bond tester
•Ohmmeter or digital multi-meter with resistance function
•Temperature probe (see page 7-2 for requirements)
•Torque driver with:
#1 Phillips bit
#2 Phillips bit
11/32” hex socket
10mm hex socket
(See Table 1-2 on page 1-8 for torque requirements.)
•10 mm open-end or box wrench
•70% isopropyl alcohol solution and soft cloth for cleaning
•Small flat-blade screwdriver
•Pliers
Service Manual 1-7
Introduction
•Medium flat-blade screwdriver with long handle
•Knife, box cutter, or similar tool with a thin, stiff blade
•Wire cutters
•Small knife or scissors
•Cable ties
•Strap or cable tie to wrap around handle of unit and hose duct adapter
•Non-metallic stylus or similar tool
•Ruler
•Small rubber mallet or similar tool
•Handheld blow-dryer
Table1-2.Torque Requirements
ItemBitTorque (Metric)Torque (English)
USB port cover screwPhillips #21.1 to 1.5 N-m9.7 to 13.3 lb-in
USB cable connector screwsPhillips #10.18 to 0.27 N-m1.6 to 2.4 lb-in
Filter enclosure screwsPhillips #21.2 to 1.6 N-m10.6 to 14.2 lb-in
Front/rear enclosure screwsPhillips #21.1 to 1.5 N-m9.7 to 13.3 lb-in
UI PCBA screws11/32" socket0.4 to 0.6 N-m3.5 to 5.3 lb-in
Power PCBA screwsPhillips #21.1 to 1.5 N-m9.7 to 13.3 lb-in
Speaker screwsPhillips #21.1 to 1.5 N-m9.7 to 13.3 lb-in
Power supply screwsPhillips #10.4 to 0.6 N-m3.5 to 5.3 lb-in
Equipotential stud screws10mm socket3.2 to 3.8 N-m28.3 to 33.6 lb-in
AC power inlet screwsPhillips #10.4 to 0.6 N-m3.5 to 5.3 lb-in
Fan assembly screwsPhillips #21.1 to 1.5 N-m9.7 to 13.3 lb-in
1-8 Service Manual
Serial Number, Software Version, and Error Codes
1.5 Serial Number, Software Version, and Error
Codes
Prior to servicing the warming unit, note the unit’s serial number, software
version, and any error codes.
The serial number is located on the back of the warming unit (Figure 1-1).
Figure1-1.Serial Number Label on Back of Warming Unit
The software version number and error codes can be obtained from the
warming unit’s System Information screen as described below.
To access the System Information screen:
1.Plug the warming unit’s power cord into the outlet, and press the On/Standby
key.
2.Press the Menu key. The Menu screen appears (Figure 1-2).
Service Manual 1-9
Introduction
Figure1-2.Menu Screen
3.Press the System Information key. The System Information screen shows the
software version and the most recent error messages, if any (Figure 1-3).
Figure1-3.System Information Screen
1Software Version2Error Messages (Up to Six)
Note:
Time stamps associated with error messages do not necessarily reflect local time.
The warming unit is set to UTC (Coordinated Universal Time) at manufacture.
4.To return to the Main screen, press the Exit key twice.
5.Press the On/Standby key to power off the unit.
1-10 Service Manual
Component Disposal - WEEE Directive
1.6 Component Disposal - WEEE Directive
The warming unit contains components that must be disposed of
in accordance with WEEE Directive. Do not dispose of the
warming unit as a whole or the following individual components
as unsorted municipal waste:
•Power cord – page 8-5
•Display (LCD) – page 10-8
•User Interface (UI) PCBA – page 10-12
•Clock battery – page 10-29
•Power PCBA – page 10-31
•Power supply – page 10-43
Service Manual 1-11
Introduction
1.7 Labeling Symbols
Table 1-3 defines the symbols that appear on the warming unit or its shipping
label.
Table1-3.Symbols on the Warming Unit and Shipping Label
SymbolDescriptionAppears On...
Warming
Unit
By prescription onlyXX
No Free Hosing: Hose nozzle must be connected to a
WarmTouch™ blanket or thermal injury may occur.
Do not use during magnetic resonance imaging (MRI).XX
Degree of protection from electric shock:
Protection Class I, Type BF applied part
Recommendation to consult accompanying documentsXX
Requirement to consult accompanying documentsXX
Nature of power supply: Alternating Current (AC)X
Potential equalization conductor terminal
Used to access the warming unit’s electrical ground for
electrical safety testing
X
X
X
Shipping
Label
Universal Serial Bus (USB) port
(For service use by qualified personnel only)
Keep dryXX
Temperature limitations (shipping/storage): -40°C to
+70°C
1-12 Service Manual
X
X
Table1-3.Symbols on the Warming Unit and Shipping Label (Continued)
SymbolDescriptionAppears On...
Labeling Symbols
Warming
Unit
Temperature limitations (operating): +18°C to +28°CX
Relative humidity limitations (shipping/storage): 10% to
95% (non-condensing)
Relative humidity limitations (operating): 15% to 85%
(non-condensing)
Atmospheric pressure limitations (shipping/storage):
12 kPa to 106 kPa
Atmospheric pressure limitations (operating): 70 kPa to
106 kPa
CE – Conformité Européene authorization mark
0123 – TÜV SÜD Product Service GmbH (notified body)
Signifies compliance with Medical Device Directive
93/42/EEC
Shipping
Label
X
X
X
X
XX
CSA – Canadian Standards Association certification
mark
European Community (EC) authorized representativeXX
Serial numberXX
Catalog numberXX
ManufacturerXX
Date of manufactureXX
Proper waste disposal for electrical and electronic equipment (WEEE)
X
X
Service Manual 1-13
Introduction
1.8 Obtaining Technical Assistance
For technical assistance or to order parts and additional manuals, contact Covidien Technical Services or a local Covidien representative.
When contacting Covidien for troubleshooting or service issues, please provide
the information described in Serial Number, Software Version, and Error Codes
on page 1-9.
Covidien Technical Services
Covidien Argentina
Aguero 351
Capital Federal - 1171 ABC
Argentina
Tel: (5411) 4863-5300
Fax: (5411) 4863-4142
Covidien Austria GmbH
Campus21
Europaring F09402
Brunn am Gebrige
A-2345 Österreich
Tel: (+43) 2236 - 3788 39
Fax: (+43) 2236 - 3788 3940
Covidien Canada
19600 Clark Graham
Baie d'Urfe, QC, H9X 3R8
Canada
Tel:1-514-695-1220, Ext.4004
Fax: 1-514-695-4965
Covidien Colombia
Edificio Prados de la Morea
Carretera Central Del Norte
(Cra 7a) Kilometro 18,
Chia-Cundinamarca
Bogota, Colombia
Tel: (571) 619-5469
Fax: (571) 619-5425
Covidien Asia
Singapore Regional Service
Centre
15 Pioneer Hub, #06-04
Singapore 627753
Tel (65) 6578 5288
Fax (65) 6515 5260
Covidien Belgie S.A.-N.V.
Generaal De Wittelaan 9/5
Mechelen
2800
België
Tel +32 152 981 37
Fax +32 152 167 83
Covidien Chile
Camino lo Boza (Ex 8395)
Pudehuel
Santiago
Chile
Tel: (562) 739 - 3000
Fax: (562) 783 - 3149
Covidien Costa Rica
Global Park, Parkway 50
La Auroa de Heredia
Costa Rica
Tel: (506) 2239 - 5386
Fax: (506) 2239 - 5319