Gentherm CSZ Blanketrol II 222S User manual


Operation and Technical Manual
Model 222S Hyper-Hypothermia Units
Cincinnati Sub-Zero Products, LLC 12011 Mosteller Road Cincinnati, Ohio 45241, U.S.A.
www.cszmedical.com

Operation / Technical Manual BLANKETROL II, Model 222S
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BLANKETROL® is a registered trademark of Cincinnati Sub-Zero Products, LLC, Cincinnati,
Ohio USA.
©Copyright 2017, Cincinnati Sub-Zero Products, LLC. All rights reserved.
Manual 57947 Rev. R
ECN: M1708-5362

Operation / Technical Manual BLANKETROL II, Model 222S
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Symbols and Definitions
AC Voltage
Water
Temperature
Silence
Alarm
Temperature Set
Risk of Explosion:
Do not use in the
Presence of Flammable
Anesthetics
Danger; Risk of
Electric Shock
Disconnect Power
Before Servicing
Patient
Temperature
Automatic
Control
Manual
Control
Test Indicators
Monitor
Only
Water Flow
Indicator
Fill to Strainer
Outlet
Inlet
Low Water
Level
Power Failure
Read Operation
Instructions and Manual
Before Operating
Separate collection for
electrical and electronic
equipment
Power Cord
Holder
Type BF
Equipment
ESD
Susceptibility
OFF / ON Switch
O / I
~
Earth (Ground)
INCREMENT
(Increase
Temperature)
DECREMENT
(Decrease
Temperature)

Operation / Technical Manual BLANKETROL II, Model 222S
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BLANKETROL®II
OPERATION MANUAL
Cincinnati Sub-Zero Products, LLC, reserves the right to make equipment changes and improvements, which
may not be reflected in this manual.
Warning
A physician’s order is required for setting blanket temperature and use of equipment. At least every
20 minutes, or as directed by the physician, check patient’s temperature and skin integrity of areas
in contact with blanket; also, check the BLANKETROL II’s water temperature. Pediatric patients,
temperature-sensitive patients with vascular disease, surgical patients, diabetics and patients with
Raynaud’s Disease are at greater risk for developing tissue injuries, and this should be considered
when selecting the temperature, duration of therapy and frequency of skin checks. Notify the
physician promptly of any change in patient status in order to avoid serious injury or death.
The method of temperature control provided by all hyper-hypothermia units presents the danger of
heating or cooling body tissues, particularly the skin, to a point where they are injured, i.e. burns or
frostbite, respectively. The clinician is responsible for determining the appropriateness of the
temperature limits in dependency to time. Exceeding 40°C water temperature for extended periods
can cause tissue damage and burns. Clinical judgment should be used to determine the safe
maximum contact periods based on patient age, clinical condition, and current medications.
Depending on the extent and severity of a burn, very serious and even fatal complications
may arise.
Do not use the BLANKETROL II System distal to arterial cross clamping. Thermal injury may
result.
Thermal injury may occur if heating/cooling therapy is applied to ischemic limbs.
The warming of transdermal medications (patches) can increase drug delivery, resulting in
possible injury to the patient.
Prevent excessive and/or prolonged tissue pressure and shearing forces, especially over bony
prominences. Failure to do so may result in tissue injury.
Do not place additional heat sources between the patient and blanket. Tissue damage may result.
Means to maintain contact between the patient and the blanket during therapy may be required and
should not block the fluid pathways of the blanket or connecting hose. Failure to do so may result
in inadequate treatment.
Prep solutions have been reported to injure the skin when allowed to remain between patients and a
water-circulating heating blanket during prolonged procedures. Use of materials of good thermal
conductivity, such as water, gel and similar substances, with the BLANKETROL II not switched ON
may decrease the temperature of the patient. The area between the patient and the blanket
should be kept dry to avoid injury to patient.
Proper sanitation procedures must be practiced and hygienic safety must be maintained, to prevent
contamination. Contamination can affect patient’s health, i.e. skin irritation/rash may result.
Use only YSI 400 Series, or equivalent, probes on CSZ equipment (refer to list of accessories in
Figure (6-9)). Failure to do this will cause incorrect temperature readings and may result in
inadequate/inappropriate treatment.
Due to static electricity, a 400 Series Probe may not be connected to the BLANKETROL II unit
without first discharging one’s body to the frame of the BLANKETROL II unit or another grounded
object. Failure to do so may result in damage from electrostatic discharge (ESD). All staff that
may touch the 400 Series Probe must be familiar with this warning and basic static electricity or
electrostatic discharge (ESD) training.

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Warning
Basic static electricity or ESD training should include an introduction to the physics of electrostatic
charge, the voltage levels that can occur in normal practice and the damage that can be done to
electronic components if equipment is touched by an operator who is electrostatically charged.
Further, an explanation should be given of methods to prevent build-up of electrostatic charge, and
how and why to discharge one’s body to the BLANKETROL II unit or another grounded object.
Failure to do so may result in damage from electrostatic discharge (ESD).
Do not use the BLANKETROL II system in the presence of flammable anesthetics. Risk of
explosion can result.
Power interruption will cause the BLANKETROL II to revert to CHECK SET POINT resulting in no
therapy to the patient. Follow instructions for desired mode to resume operation. Failure to
resume therapy could result in serious injury or death.
Do not by-pass ground lug (230V System). Electrical Hazards may result.
To avoid the risk of electric shock, this equipment must only be connected to a supply mains with
protective earth. Risk of electrical shock may occur.
Blanket punctures can result in an increased risk of infection or electrical shock. Inspect
all blankets for mechanical damage before use. Do not use in proximity to sharp objects.
Any time water is found leaking into or around the unit, connecting hose, and/or blanket, turn the
unit off, disconnect the power cord from its power source, and correct the problem before
proceeding. Proper maintenance procedures should be followed including, but not limited to, the
preventative maintenance described in this manual. Leaky blankets or hoses should never be
used. Water leaks could present a slip hazard and risk of infection and could lead to
electric shock.
Exercise extreme caution if the BLANKETROL II System is used on patients with cardiac issues,
for example, patients with pacemakers, or when a probe is inserted in or attached to the patient.
Failure to properly monitor patient may result in serious injury or death.
Due to electromagnetic compatibility, the BLANKETROL II unit should not be used adjacent to or
stacked with other equipment. Potential electromagnetic interference may result. Other
equipment includes ventilators, patient monitors, anesthesia delivery equipment, etc.
Electromagnetic interference refers to electronic devices unintentionally affecting the operation of
each other by emitting electromagnetic energy. Unit complies with IEC 60601-1-2.
If the BLANKETROL II unit or the other equipment is not operating normally, remove the device
from service and have a biomedical or service technician observe the device in operation. Refer
to Section 7 for recommended separation distances between other equipment and the
BLANKETROL II. Failure to do so may result in damage to the BLANKETROL II system and
patient injury.
Always unplug the unit before accessing internal components during service. Failure to
unplug the unit could result in electric shock.
The repair, calibration, and servicing of the BLANKETROL II should be performed by qualified
Medical Equipment Service Technicians, Certified Biomedical Electronics Technicians, or Certified
Clinical Engineers familiar with good repair practices for servicing medical devices, and in
accordance with instructions contained in this manual. Improper repair can result in damage to
the BLANKETROL II system and patient injury.
No modification of this equipment is allowed without prior, written authorization from CSZ. Failure
to do so may result in damage to the BLANKETROL II system and patient injury.
Before returning the BLANKETROL II to patient use after repairs, the FIRST TIME SET-
UP/SYSTEM TEST ROUTINE in Section 2 must always be performed. Improper repair and
inadequate maintenance can result in damage to the BLANKETROL II system and patient
injury.

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Warning
Remove the BLANKETROL II from service if the outer casing or membrane control panel is cracked
or internal components are exposed. Contact with internal components could result in electric
shock or thermal injury to the patient or operator and exposure to sharp edges.
Keep grill and condenser clean and free of debris and obstruction. Blockage of the grill and
condenser could result in the unit overheating which could render the unit unable to provide
adequate therapy and excessive surface temperatures could cause injury of patient or
operator. Keep unit, specifically the grill away from curtains or other obstructions.
Working with electronic boards, plugs, and cables requires delicate handling. Proper electrostatic
discharge (ESD) procedures should be followed during replacement of any electronic board.
Failure to do so may result in damage to the board.
Use of accessories other than those specified in the Operation and Technical Manual may result in
increased electromagnetic emissions or decreased immunity to electromagnetic emissions
of the BLANKETROL II unit. This could affect the BLANKETROL II’s compatibility with other
electrical equipment. Electromagnetic compatibility refers to electronic devices unintentionally
affecting the operation of each other by emitting electromagnetic energy.

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CAUTION
Federal law restricts this device to sale by or on the order of a physician.
Use distilled water only. Do Not Use De-Ionized water. De-Ionized water may cause corrosion
to plumbing system components. Do Not Use Tap Water. Minerals and deposits can clog
plumbing system components.
Do not use alcohol. Alcohol may cause blanket and unit deterioration.
Use only hospital grade plug or electric shock may result.
Do not overfill. Overfilling may result in overflow when the water in the blanket drains back into the
system when the system is turned off.
Always drain the BLANKETROL II to a sanitary drain because bio-contaminants may be present in
the unit’s water supply.
Handling or use of the patient probe may result in damage from electrostatic discharge (ESD) if
proper precautions are not taken.
All wire-lead, patient-connected transducer assemblies are subject to reading error, local heating,
and possible damage from high intensity sources of RF energy. Inadequately grounded
electrosurgical equipment represents one such source, since capacitively coupled currents may
seek alternate paths to ground through probe cables and associated instruments. Patient burns may
result. If possible, remove the probe from patient contact before activating an electrosurgical unit.
Do not immerse the probes or connecting cables in liquid. Failure to do so may result in damage to
the probes.
If unit was shipped on its side, permit the unit to rest in an upright position for twelve (12) hours
before operating due to refrigeration oil displacement.
For safe handling and use of chemicals follow manufacturer guidelines.
Users should not use cleaning or decontamination methods different from those recommended by
CSZ without first checking with CSZ that the proposed methods will not damage the equipment.
Working with electronic boards, plugs, and cables requires delicate handling. Proper electrostatic
discharge (ESD) procedures should be followed during replacement of any electronic board.
Failure to do so may result in damage to the board.
If device is set to operate in Automatic mode, the device will shut down and activate the CHECK
PROBE alarm if the patient temperature falls below 30.0ºC (86°F). Patient temperature must rise
above 30.0ºC (86°F) before restarting the device in Automatic mode. The device can be operated in
Manual Control mode in order to warm the patient above 30.0°C (86°F). Potential for interruption of
therapy.
Unapproved blankets or hoses should never be used.

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TABLE OF CONTENTS
TECHNICAL HELP ..................................................................................................................................................11
AUTHORIZED EUROPEAN REPRESENTATIVE:.............................................................................................11
BEFORE YOU CALL FOR SERVICE.................................................................................................................... 11
IN-WARRANTY REPAIR AND PARTS ...............................................................................................................11
RECEIVING INSPECTION.................................................................................................................................... 11
IMPORTANT SAFETY INFORMATION..............................................................................................................11
SECTION 1. INTRODUCTION................................................................................................................................ 12
1-0. GENERAL SAFETY PRECAUTIONS............................................................................................................12
1-1. GENERAL DESCRIPTION OF THIS MANUAL ........................................................................................... 12
1-2. GENERAL DESCRIPTION OF THE BLANKETROL II SYSTEM................................................................ 13
1-3. PHYSICAL DESCRIPTION OF THE BLANKETROL II UNIT.....................................................................14
1-3.1. External Features - Front View ................................................................................................................ 14
1-3.2. External Features - Right Side View......................................................................................................... 16
1-3.3. External Features - Rear View.................................................................................................................. 18
1-3.4. Expanded Description Of The BLANKETROL II Membrane Control Panel............................................ 20
1-4. REQUIRED ACCESSORIES........................................................................................................................... 22
1-5. FUNCTIONAL DESCRIPTION OF THE BLANKETROL II SYSTEM......................................................... 22
1-5.1. Theory Of Operation................................................................................................................................. 22
1-5.2. Heating System.......................................................................................................................................... 22
1-5.3. Cooling System.......................................................................................................................................... 23
1-5.4. Circulating System.................................................................................................................................... 23
1-5.5. Temperature Safety Control System.......................................................................................................... 24
SECTION 2. GENERAL PREPARATION OF THE BLANKETROL II SYSTEM ...........................................25
2-0. INTRODUCTION ............................................................................................................................................ 25
2-1. UNPACKING THE SHIPMENT...................................................................................................................... 25
2-2. FIRST TIME SET-UP/SYSTEM TEST ROUTINE ......................................................................................... 25
2-2.1. Inspecting And Arranging The Equipment................................................................................................ 25
2-2.2. Completing A System Test Routine ........................................................................................................... 27
2-3. UNIT AND PATIENT RELATED PRECAUTIONS....................................................................................... 32
2-4. PATIENT PREPARATION AND BEDSIDE CARE ....................................................................................... 32
SECTION 3. OPERATING THE BLANKETROL II UNIT..................................................................................37
3-0. INTRODUCTION ............................................................................................................................................ 37
3-1. ARRANGING THE SYSTEM COMPONENTS.............................................................................................. 37
3-2. OPERATING THE BLANKETROL II UNIT IN AUTO CONTROL MODE ................................................... 39
3-3. OPERATING THE BLANKETROL II UNIT IN MANUAL CONTROL MODE.............................................. 41
3-4. OPERATING THE BLANKETROL II UNIT IN MANUAL CONTROL MODE WITH THE ADDITION OF
THE PATIENT PROBE...........................................................................................................................................43
3-5. OPERATING THE BLANKETROL II UNIT IN MONITOR ONLY MODE.................................................... 44
3-6. CONCLUDING HYPER-HYPOTHERMIA TREATMENT........................................................................... 45
3-7. SETPOINT/ STATUS DISPLAY MESSAGES............................................................................................... 45
SECTION 4. GENERAL MAINTENANCE OF THE BLANKETROL II SYSTEM..........................................52
4-0. INTRODUCTION ............................................................................................................................................ 52
4-1. TEST EQUIPMENT REQUIRED.................................................................................................................... 53
4-2. MAINTENANCE OF THE WATER RESERVOIR......................................................................................... 55
4-2.1. Fluid Circuit Disinfection/Dry Storage Procedure (For Circulating Water Units Utilizing Household
Bleach) ................................................................................................................................................................ 55
4-2.2. Fluid Circuit Disinfection/Dry Storage Procedure (for Circulating Water Units Utilizing CE Approved
Gigasept FF)....................................................................................................................................................... 56
(Product of Schulke & Mayr) (Contact your local Cleaning Supplier)............................................................... 56
4-2.3. Fluid Circuit Disinfection/Dry Storage Procedure (For Circulating Water Units Utilizing CE Approved
Maranon H)......................................................................................................................................................... 57
4-2.4. Draining The Reservoir ............................................................................................................................ 58

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4-2.5. Replenishing The Reservoir ...................................................................................................................... 59
4-3. MAINTENANCE OF THE WATER FILTER.................................................................................................. 60
4-4. MAINTENANCE OF THE CONDENSER AND GRILL ................................................................................ 61
4-5. MAINTENANCE OF THE BLANKETROL II EXTERIOR –CLEANING INSTRUCTIONS ...................... 61
4-6. MAINTENANCE OF THE HYPER-HYPOTHERMIA BLANKETS............................................................. 62
4-6.1. Reusable Blankets.....................................................................................................................................62
4-6.2. Disposable, Single-Patient Use Blankets..................................................................................................62
4-7. MAINTENANCE OF REUSABLE THERMISTOR PROBES........................................................................62
4-8. LOW LIMIT SAFETIES CHECK .................................................................................................................... 63
4-9. HIGH LIMIT SAFETIES CHECK ................................................................................................................... 64
4-10. TEMPERATURE ACCURACY CHECK ...................................................................................................... 65
SECTION 5. FIELD REPAIR/SERVICE OF THE BLANKETROL II UNIT ....................................................66
5-0. INTRODUCTION ............................................................................................................................................ 66
5-1. ACCESS TOTHE INTERIOR OF THE BLANKETROL II UNIT.................................................................. 69
5-1.1. Removing The Rear Enclosure Panel ....................................................................................................... 69
5-1.2. Removing The Top Of The Unit ................................................................................................................ 69
5-1.3. Removing The Left Side Enclosure Panel ................................................................................................. 70
5-1.4. Disconnecting The Cables From The Microprocessor Board ..................................................................70
5-1.5. Extending The Front Storage Drawer....................................................................................................... 71
5-1.6. Repositioning The Front Storage Drawer................................................................................................. 71
5-2. REPLACEMENT OF THE HEATER .............................................................................................................. 72
5-3. REPLACEMENT OF THE WATER FILTER ASSEMBLY............................................................................ 72
5-4. REPLACEMENT OF THE PUMP HOUSING................................................................................................. 73
5-5. REPLACEMENT OF THE PUMP MOTOR .................................................................................................... 74
5-6. REPLACEMENT OF THE FLOW SWITCH................................................................................................... 76
5-7. REPLACEMENT OF THE WATER TEMPERATURE SENSOR ..................................................................77
5-8. REPLACEMENT OF THE UPPER AND/OR LOWER WATER MANIFOLDS............................................78
5-9. REPLACEMENT OF THE COMPRESSOR STARTING CAPACITOR, THE OVERLOAD PROTECTOR,
AND/OR THE COMPRESSOR RELAY ................................................................................................................79
5-10. REPLACEMENT OF THE THERMAL DISC OVER TEMPERATURE DEVICE ......................................79
5-11. REPLACEMENT OR CLEANING OF THE WATER FLOW INDICATOR ASSEMBLY.......................... 80
5-12. REPLACEMENT OF THE I/O POWER SWITCH........................................................................................ 81
5-13. REPLACEMENT OF THE WATER LEVEL SENSOR ASSEMBLY........................................................... 82
5-14. REPLACEMENT OF THE MICROPROCESSOR BOARD AND/OR THE MEMBRANE CONTROL
PANEL .................................................................................................................................................................... 83
5-15. REPLACEMENT OF THE BEEPER ASSEMBLY ....................................................................................... 84
5-16. REPLACEMENT OF THE POWER CORD .................................................................................................. 84
5-17. LEAKAGE CURRENT..................................................................................................................................85
5-17.1. Arranging The Equipment....................................................................................................................... 85
5-17.2. Taking Measurements In Normal Polarity.............................................................................................. 85
5-17.3. Taking Measurements In Reverse Polarity ............................................................................................. 85
5-18. REFRIGERANT CHECK............................................................................................................................... 86
5-19. TROUBLESHOOTING GUIDE .................................................................................................................... 87
SECTION 6. PARTS INFORMATION.................................................................................................................... 95
6-0. INTRODUCTION ............................................................................................................................................ 95
6-1. ORDERING INFORMATION FOR REPLACEMENT PARTS......................................................................95
6-2. RECOMMENDED REPLACEMENT PARTS INVENTORY ........................................................................ 95
6-3. RETURNING PARTS UNDER WARRANTY................................................................................................ 96
6-4. SHIPPING PARTS........................................................................................................................................... 96
SECTION 7. SPECIFICATIONS AND CERTIFICATIONS OF THE BLANKETROL II .............................107
WORLDWIDE ORDER PLACEMENT................................................................................................................ 111

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TABLE OF FIGURES
FIGURE 1- 1: BLANKETROL II, FRONT VIEW....................................................................................................................... 15
FIGURE 1-2: BLANKETROL II, RIGHT SIDE VIEW ................................................................................................................ 17
FIGURE 1- 3: BLANKETROL II, REAR VIEW ......................................................................................................................... 19
FIGURE 1- 4.A.: BLANKETROL II MEMBRANE CONTROL PANEL, ENGLISH ........................................................................ 21
FIGURE 1- 4.B.: BLANKETROL II MEMBRANE CONTROL PANEL, SYMBOLS ....................................................................... 21
FIGURE 4- 1: MAINTENANCE CHECKLIST........................................................................................................................... 54
FIGURE 5- 1: BLANKETROL II, EXPOSED REAR VIEW ......................................................................................................... 68
FIGURE 6- 1: PARTS LIST A ................................................................................................................................................ 97
FIGURE 6- 2: BLANKETROL II, INTERNAL EXPLODED - FRONT VIEW ................................................................................. 98
FIGURE 6- 3: PARTS LIST B................................................................................................................................................. 99
FIGURE 6- 4: BLANKETROL II, INTERNAL EXPLODED - REAR VIEW .................................................................................. 100
FIGURE 6- 5: BLANKETROL II, ELECTRICAL WIRING DIAGRAM 115V............................................................................... 101
FIGURE 6- 6: BLANKETROL II, ELECTRICAL WIRING DIAGRAM, 230 V............................................................................. 102
FIGURE 6- 7: BLANKETROL II, WATER CIRCULATION DIAGRAM...................................................................................... 103
FIGURE 6- 8: BLANKETROL II, REFRIGERATION FLOW DIAGRAM.................................................................................... 104
FIGURE 6- 9: BLANKETROL II, SYSTEM ACCESSORIES ...................................................................................................... 106
TABLE 7-1: GUIDANCE AND MANUFACTURER’S DECLARATION –ELECTROMAGNETIC EMISSIONS .............................. 109
TABLE 7-2: GUIDANCE AND MANUFACTURER’S DECLARATION –ELECTROMAGNETIC IMMUNITY .............................. 109
TABLE 7-3: GUIDANCE AND MANUFACTURER’S DECLARATION –ELECTROMAGNETIC IMMUNITY FOR BLANKETROL
II THAT IS NOT USED FOR LIFE SUPPORT..................................................................................................... 110
TABLE 7-4: RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF COMMUNICATIONS
EQUIPMENT AND THE BLANKETROL II, MODEL 222S ................................................................................. 111

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TECHNICAL HELP
United States and Canada Telephone [phone]
Cincinnati Sub-Zero Products, LLC (U.S.) Toll Free 1-800-989-7373
12011 Mosteller Road (U.S.) 24hr Clinical Support 1-513-460-2038
Cincinnati, OH 45241 Fax [phone]
www.cszmedical.com
Authorized European Representative:
CEpartner4U, BV
Esdoornlaan 13
3951 DB Maarn
The Netherlands
www.CEpartner4U.com
BEFORE YOU CALL FOR SERVICE...
To help us better serve you, please have the serial number of your BLANKETROL II unit ready
when you call for parts or service.
How to read serial numbers:
Example: 121-2-60000
12 indicates a manufacturing date of the year 2012
1 indicates the quarter (first)
-2- indicates the unit is a BLANKETROL II, Model 222S
60000 indicates that this is the 60,000th unit of a certain model
IN-WARRANTY REPAIR AND PARTS
All parts on your BLANKETROL II unit are covered by a two-year (2) warranty. Additional third
year warranty is available at the time of purchase. To return defective parts or units, first obtain
a Returned Materials Authorization (RMA) number from our Medical Technical Service
department. All returns should be made in CSZ-issued shipping cartons.
RECEIVING INSPECTION
After unpacking the BLANKETROL II System, be sure to inspect the system for concealed
damage. Retain all packing material and carefully describe or photograph any damage. Notify
the carrier at once and ask for an inspection (in writing). Failure to do this within 15 days may
result in loss of claim. Do not return the equipment to Cincinnati Sub-Zero. Call our Medical
Technical Service department for further instructions.
IMPORTANT SAFETY INFORMATION
Refer to this manual for instructions and caregiver information. Read and understand all
precautionary information before using, prescribing, or servicing the BLANKETROL II unit.

OPERATION BLANKETROL II, Model 222S
OPERATION AND TECHNICAL MANUAL
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SECTION 1. INTRODUCTION
1-0. GENERAL SAFETY PRECAUTIONS
To provide the patient maximum safety during the use of the BLANKETROL II system, a
thorough knowledge and understanding of the system, and its correct application and operating
use are required. Each person who is responsible for use or direction of use of the system,
such as physicians, nurses, technicians and operators must read and understand this operating
manual and all precautions and warnings prior to use. It is recommended this manual be
reviewed at least semi-annually as a refresher to safe operation and application. For proper
knowledge and understanding, in-service training is available upon request.
1-1. GENERAL DESCRIPTION OF THIS MANUAL
This manual describes the operation, maintenance, and service of the BLANKETROL II system.
Section one describes the physical and functional characteristics of the BLANKETROL II
System. Section two describes how to prepare the BLANKETROL II unit for general use.
Section three describes how to operate the unit in the MANUAL CONTROL MODE, AUTO
CONTROL MODE, and MONITOR ONLY MODE. Section four describes the regular
maintenance of the BLANKETROL II unit. Section five describes Field Repair and Service of
the BLANKETROL II unit and contains a troubleshooting guide. Section six outlines parts
information and section seven lists the specifications of the BLANKETROL II.
This manual is prepared for professional personnel who use the BLANKETROL II for patient
care as well as technicians and service personnel who are responsible for maintaining the
equipment. All personnel who operate or service the unit should be familiar with all parts of this
manual. However, Sections one, two, and three are primarily intended for personnel who
unpack and setup the unit. Section three is primarily intended for personnel who operate the
unit, and Sections three through six are primarily intended for personnel who service and repair
the unit. Section (1-3.) describes the external features of the BLANKETROL II and Section (3-7.)
describes display messages. These sections should be consulted if questions arise over the
terminology used in this manual.
Operating modes are described in Section (1-5.1.) and are highlighted throughout the manual in
italics and capital letters. Button names and display messages are shown in all capital letters.

OPERATION BLANKETROL II, Model 222S
OPERATION AND TECHNICAL MANUAL
Page 13 of 110
1-2. GENERAL DESCRIPTION OF THE BLANKETROL II SYSTEM
INDICATIONS FOR USE
The BLANKETROL II Hyper-Hypothermia Temperature Management System is used to lower
or to raise a patient’s temperature and/or maintain a desired patient temperature through
conductive heat transfer. The system is composed of a heater, a compressor, a circulating
pump and blankets/pads.
BLANKETROL II Model 222S
This unit requires no field adjustments or calibrations in order to maintain the board
measurement of temperature and temperature limits.
Distilled water is heated or cooled and pumped from the unit to a blanket. The blanket* rests
under and/or on top of the patient and is designed so that the water circulates through the
blanket and returns to the unit.
If water that is at a lower temperature than the patient’s temperature is circulated through the
blanket, the desired effect is to reduce the patient's temperature. If water that is at a higher
temperature than the patient’s temperature is circulated through the blanket, the desired effect is
to elevate the patient's temperature.
The BLANKETROL II unit can be set so that it operates based on the temperature of the water
in the BLANKETROL II equipment (MANUAL CONTROL MODE) or it can be set so that it
operates based upon the patient’s temperature (AUTO CONTROL MODE).
The BLANKETROL II unit can also be used solely to monitor the temperature of the patient
(MONITOR ONLY MODE).
The BLANKETROL II is intended for use in ambient temperatures of 15°C –30°C (59°F –86°F).
The maximum contact surface temperature is 41°C (105.8°F).
* The recommended blanket(s) for use are described in Section (1-4.)

OPERATION BLANKETROL II, Model 222S
OPERATION AND TECHNICAL MANUAL
Page 14 of 110
1-3. PHYSICAL DESCRIPTION OF THE BLANKETROL II UNIT
See Section (7.) for specifications and certifications of the BLANKETROL II.
1-3.1. External Features - Front View
The external features in Figure (1-1.) of the BLANKETROL II unit are described as follows:
A. The control panel is composed of pressure sensitive touch switches, six LED
indicators, a liquid crystal display, and two LED displays. An expanded description of
the membrane control panel is presented in Section (1-3.4.).
B. The recessed handle permits the operator to grip the unit when moving it.
C. The power switch is a bevel rocker switch labeled “I” (on) at the top and “O” (off) at the
bottom. The switch illuminates green when the unit is on. A circuit breaker is built into
the switch to protect against overload conditions.
D. The storage drawer tilts out from the top to provide storage space for items such as
probes, connecting cables, connecting hoses, the drain hose, and the Operator's
Manual.
E. The grill permits air to be drawn into the unit and pass over the condenser. The air is
then discharged through the bottom of the unit. The grill and compressor should be
kept clear from blockage and cleaned regularly as described in Section (4-4.).
F. The protective bumper guard surrounds the lower edge of the unit and protects the
unit as well as the walls.
G. Four swivel casters are specially designed to permit the unit to move easily and to
prevent it from tipping. The unit is equipped with two locking casters to prevent
unintended movement during operation.

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Figure 1- 1: BLANKETROL II, FRONT VIEW

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1-3.2. External Features - Right Side View
The external features in Figure (1-2.) of the BLANKETROL II unit are described as follows:
A. The water flow indicator is a paddle wheel immersed in the path of the circulating
water with a window to the outside. As water is circulated through the system, it
passes over the paddle wheel causing it to spin (like a pinwheel). The water flow
indicator provides a visual display of the general rate at which the water is circulating.
For example, if the unit is circulating water but the connecting hose is pinched, the
circulation of the water is restricted. The restriction in water flow decreases the speed
of the paddle wheel.
The water flow indicator only spins when a blanket or by-pass hose is connected to the
unit. It will not spin while the water is being circulated internally to pre-condition the
water to the ‘preset” water temperature chosen by the operator.
A total obstruction of the water path will cause the paddle wheel to stop completely.
B. The air vents, on both the right and left side of the unit, provide air circulation for the
microprocessor.
C. The four capped screws on the right and left side of the unit secure the top to the base.
D. The patient 1/4 inch receptacle is where the 400 Series probe (refer to Figure 6-9 for a
list of temperature probes) is connected to the unit. Only one patient probe can be
connected at a time.
E. Three female, quick-disconnect return fittings on the top row are designed for water to
flow in when the male coupling of the connecting hose is attached.
F. The three male quick-disconnect outlet fittings on the bottom row are designed for
water to flow out when the female coupling of the connecting hose is attached.
G. The power cord with a hospital-grade plug should only be plugged into a properly
grounded hospital grade receptacle. Electrical Specifications are described in Section
(7.).
H. The isolation label indicates that the BLANKETROL II and the blanket (applied part)
are BF rated as a system. Contact with other parts (i.e. the quick-disconnect fittings) at
the same time as contacting the patient will negate the type BF rating.

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FIGURE 1-2: BLANKETROL II, RIGHT SIDE VIEW

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1-3.3. External Features - Rear View
The external features in Figure (1-3.) of the BLANKETROL II unit are described as follows:
A. The specification label outlines the BLANKETROL II unit's electrical requirements and
displays the serial and model numbers of the unit.
B. The air vents, on both the right and left side of the unit, provide air circulation for the
microprocessor board.
C. The nylon strap is used to secure and store the coiled power cord when not in use.
D. The rear enclosure panel secured with four screws provides access to the interior. The
panel is removed to perform maintenance, repair, or replacement of components.
E. The water fill opening is where the operator pours distilled water into the unit to fill the
reservoir.
F. The operating instructions are printed directly on the back lid of the unit. This allows the
operator to clearly see the directions and efficiently use the unit.

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Figure 1- 3: BLANKETROL II, REAR VIEW

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1-3.4. Expanded Description Of The BLANKETROL II Membrane Control Panel
The membrane control panel as shown in Figure (1-4.A.) for English and (1-4.B.) for
Symbols is composed of pressure sensitive touch switches and LED displays.
The membrane control panel is divided into the following sections:
A. The digital display labeled WATER shows the actual temperature of the water in the
BLANKETROL II equipment.
B. The MANUAL CONTROL button is used to activate the unit so that operation is based
on the temperature of the water in the BLANKETROL II equipment relative to the set
point temperature.
C. The digital liquid crystal display reports the status of the unit, indicates the set point,
and/or indicates changes the operator should make. It is referred to as the SETPOINT/
STATUS display. The possible SETPOINT/ STATUS displays are listed in Section (3-
7.).
D. The TEMP SET button and the UP and DOWN arrow buttons are used to set the SET
POINT display.
E. The digital display, labeled PATIENT, shows the actual temperature of the patient.
F. The AUTO CONTROL button is used to activate the AUTO CONTROL MODE. In this
mode the operation is based on the temperature of the patient relative to the set point
temperature.
G. The MONITOR ONLY button is used to set the unit to monitor the temperature of the
patient without heating, cooling or circulating the water.
H. The two switches labeled TEST INDICATORS and SILENCE ALARM are used to
confirm that all the indicators on the membrane control panel are working and to silence
the alarm in certain conditions.
I. The POWER FAILURE symbol flashes the red LED to the left of the symbol and sounds
an audible alarm when the unit loses power or when power has been interrupted,
restored, and the unit does not resume previous operation.
J. The LOW WATER symbol indicates when the unit is low on water by flashing the red
LED to the left of the symbol, sounding an audible alarm and displaying ”LOW WATER”
in the SETPOINT/ STATUS display. Refer to Section (3-7.).
K. C/F button allows the operator to select the measurement scale, Celsius or Fahrenheit,
by which the unit functions. It is only available on units with an English membrane.