CSZ ELECTRI-COOL II User manual

ELECTRI-COOL®II
OPERATION AND TECHNICAL MANUAL
Model 767 Cooling System
Cincinnati Sub-Zero Products, LLC 12011 Mosteller Road
Cincinnati, Ohio 45241, U.S.A.
www.cszmedical.com

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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Electri-Cool®II is a registered trademark of Cincinnati Sub-Zero Products, LLC, Cincinnati, Ohio, USA.
©Copyright 2017, Cincinnati Sub-Zero Products, LLC All rights reserved.
Manual 56269 Rev. Q
ECN: M1802-5455

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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40 - 45°F 46 - 50°F 51 - 55°F
5 - 7°C 8 - 10°C 11 -13°C
2°C/36°F
ELECTRI-COOL®II Symbol Definitions
Read Operation
Instructions and Manual
Before Operating
Inspect and Change
Filter Periodically
Low Water Level
Low Water
Temperature
Type B Applied Part
Temperature Settings
Voltage, Alternating
Current
Externally Accessible
Fuse
Potential Equalization
Connection (Grounding)
Risk of Explosion: Do
not use in the presence
of flammable
anesthetics
Power On (Located on
Switch)
Power Off (Located on
Switch)
Separate Disposal for
Electrical Equipment

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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ELECTRI-COOL®II
OPERATION AND TECHNICAL 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 temperature and use of equipment. At least every
20 minutes, or as directed by a physician, check the patient’s temperature and skin condition
of areas in contact with the blanket. Also check blanket water temperature. Pediatric,
temperature-sensitive patients with vascular disease, surgical patients, diabetics and
patients with Raynaud’s Disease should be checked more frequently. Notify the physician
promptly of any change, in order to avoid serious injury.
Observe patient’s skin condition frequently due to individual differences in sensitivity
and susceptibility to injury from cold and/or externally applied chemicals or pressure.
Patients at greatest risk are those unconscious, on prolonged therapy, diabetics,
children and persons incapacitated or with insensitive skin areas or poor circulation.
Prevent excessive and/or prolonged tissue pressure and shearing forces, especially over
bony prominences to prevent skin damage which may result.
Do not place additional heat or cold sources between the patient and blanket. Skin damage
may occur.
The area between the patient and the blanket should be kept dry to avoid injury to the
patient.
Do not use pins to secure pad or hoses. Do not allow pad or hoses to come in contact with
any sharp object. A water leak could cause a slip hazard.
Do not use the Electri-Cool® II system in the presence of flammable anesthetics. Risk of
explosion can result.
Power interruption will cause the Electri-Cool® II system to revert to the default range of 40°F
- 45°F (5°C - 7°C). Follow instructions for First Time Set-Up/System Test Routine to resume
operation. Failure to resume the desired therapy could result in injury.
In order to avoid the risk of electric shock, this equipment must only be connected to a
supply main with protective earth.
Electric shock hazard may be present. Do not remove cover.
Service is to be performed by qualified personnel only.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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CAUTION
US 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.
Do not overfill. Overfilling may result in overflow when the water in the blanket drains back
into the system when it is turned off.
Use only hospital grade power plug, or electrical shock may result.
Do not operate pump without pad connected or with pad clamps in the “closed” position.
Always check clamps to make sure they are fully open.
Check hose couplings to be certain that they are properly locked together.
Make sure hose and pads are free of kinks which might restrict flow.
Complete folding of pad may restrict flow and reduce therapy to patient.
The pad surface should be checked for damage prior to each application.
To ensure maximum therapy is delivered, it may be necessary to retain the pad on the
patient with straps for adequate contact with the patient.
Follow pad instructions as well as hospital/physician instructions for applying, storing and
disposal of product.
Special precautions regarding electromagnetic compatibility are required and the Electri-
Cool® II needs to be installed and put into service according to the electromagnetic
compatibility information provided. Electromagnetic compatibility refers to electronic devices
unintentionally affecting the operation of each other by emitting electromagnetic energy.
Due to electromagnetic compatibility, other equipment can affect the Electri-Cool® II system.
The Electri-Cool® II should not be used adjacent to or stacked with other equipment. Other
equipment includes ventilators, patient monitors, anesthesia delivery equipment, etc. If
adjacent placement or stacking is necessary, the Electri-Cool® II and the other equipment
should be observed to verify that it is operating normally in the mode that is set.
If the Electri-Cool® II system or 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 the specifications section for recommended separation distances between other
equipment and the Electri-Cool® II system.
For safe handling and use of chemicals, follow manufacturer guidelines for cleaning.
Always drain the Electri-Cool® II to a sanitary drain because bio-contaminants may be
present in the unit’s water supply.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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Table of Contents
TECHNICAL HELP.....................................................................................................................8
BEFORE YOU CALL FOR SERVICE ........................................................................................8
IN-WARRANTY REPAIR AND PARTS......................................................................................8
IMPORTANT SAFETY INFORMATION .....................................................................................8
1) RECEIVING AND INSPECTION ............................................................................................9
2) INTRODUCTION....................................................................................................................9
a) General Safety Precautions.............................................................................................9
b) General Product Description............................................................................................9
c) Intended Use....................................................................................................................9
d) Contraindications.............................................................................................................9
e) Transporting and Shipping.............................................................................................10
3) SET-UP/OPERATION/CLEANING & STORAGE ................................................................11
a) Equipment Set-Up..........................................................................................................11
b) Filling Instructions ..........................................................................................................12
c) Startup Instructions ........................................................................................................12
d) Setting Temperature ......................................................................................................12
e) Accessories....................................................................................................................14
f) Pad Instructions ..............................................................................................................15
g) Disposal.........................................................................................................................15
h) Cleaning (External) ........................................................................................................15
i) Storage............................................................................................................................15
4) TROUBLESHOOTING GUIDE.............................................................................................19
a) General..........................................................................................................................19
b) Indicator Specifics..........................................................................................................19
5) GENERAL MAINTENANCE AND CHECKOUT PROCEDURE...........................................20
a) Exterior Physical Inspection...........................................................................................20
b) Air Filter Inspection ........................................................................................................20
c) Flow Test........................................................................................................................20
d) Temperature Test ..........................................................................................................21
e) Low Water Switch/Indicator Test....................................................................................21
f) Leakage Current Test .....................................................................................................21
g) Ground Continuity Test..................................................................................................21
h) Water Temperature Low-Limit Thermistor Test..............................................................22
i) Internal Physical Inspection.............................................................................................22
6) SPECIFICATIONS................................................................................................................24
7) APPROVALS .......................................................................................................................25
8) SERVICE..............................................................................................................................25
a) Replacement Parts ........................................................................................................25
b) Parts List........................................................................................................................26
9) FLUID CIRCUIT DISINFECTION/DRY STORAGE PROCEDURE ......................................29

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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List of Figures
Figure 1 - Electri-Cool®II Front View................................................................................................... 10
Figure 2 - Electri-Cool®II Left-side View............................................................................................. 10
Figure 3 - Mounting the Electri-Cool®II to the Bed Bracket............................................................. 11
Figure 4 - Electri-Cool®II Membrane Control Panel.........................................................................13
Figure 5 - Electri-Cool®II Filter View...................................................................................................20
Figure 6 - Electri-Cool®II Exploded View........................................................................................... 27
Figure 7 - Electri-Cool®II Wiring Schematic....................................................................................... 28
List of Tables
Table 1 - Tables Presented in Fulfillment of IEC 60601-1-2............................................................ 16
Table 2: Preventive Maintenance Inspection Sheet..........................................................................23

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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TECHNICAL HELP:
United States and Canada
Cincinnati Sub-Zero Products, LLC Toll Free 1-800-989-7373
12011 Mosteller Road (U.S.) 24hr Clinical Support 1-513-460-2038
Medical Tech Service 1-888-437-5608
Cincinnati, OH, 45241 Fax [phone]
www.cszmedical.com
BEFORE YOU CALL FOR SERVICE....
To help us better serve you, please have the serial number of your Electri-Cool® II unit ready when you call
for parts or service. The serial number is located on the unit’s rear panel.
IN-WARRANTY REPAIR AND PARTS:
All parts on your Electri-Cool® II unit are covered by a one-year (1) warranty. Additional three 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.
IMPORTANT SAFETY INFORMATION:
Refer to this manual for instructions and operator information. Read and understand all WARNINGS and
CAUTIONS before using, prescribing or servicing the Electri-Cool® II system.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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1) RECEIVING AND INSPECTION/ IMPORTANT SAFETY INFORMATION
After unpacking the Electri-Cool®II, inspect the system for concealed damage. Retain all packing material
and carefully record 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 instruction.
2) INTRODUCTION
a) General Safety Precautions
To provide the patient with maximum safety during the use of the Electri-Cool®II Cold Therapy 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 operation and technical manual as well as
all precautions and warnings prior to use. It is recommended that this manual be read at least semi-annually
as a refresher for safe operation and application. For proper knowledge and understanding, in-service is
available upon request.
b) General Product Description
The Electri-Cool®II system has been designed to provide maximum thermal transfer efficiency at optimum
safety. The Electri-Cool®II consists of a plastic reservoir for holding distilled water; a float switch to sense
water level; a pump for circulating water through an external pad; a thermoelectric (TE) module to cool the
water; a microprocessor-based electronic control to regulate water temperature; and a fan to transfer
absorbed heat to the ambient air. The user can select among three pre-set temperature ranges: 51°F - 55°F
(11°C - 13°C); 46°F - 50°F (8°C - 10°C); and 40°F - 45°F (5°C - 7°C). In addition to the aforementioned
features, this model includes audible and visual indicators for low temperature and low water levels. The unit
also shuts down entirely in the event of an internal component over-temperature condition.
c) Intended Use
The Electri-Cool®II, Model 767 Portable Cold TherapyUnit is used to provide cold therapy immediately
following the surgical procedure at the wound site. The system is composed of a water reservoir, a
thermoelectric sub-assembly, a circulating pump, a micro-processor control board, a fan and a local therapy
pad.
d) Contraindications
There are currently no known contraindications.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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Figure 1 - Electri-Cool®II Front View
Figure 2 - Electri-Cool®II Left-side View
e) Transporting and Shipping
Drain all water from the reservoir before shipment or storage. The Electri-Cool® II can be transported
through normal shipping methods via ground, air, or water when packaged in its approved packaging
material. During transportation and storage, packaging should not be exposed to conditions that fall out of
the ranges below:
I. Temperature: -40°C to 70°C (–40°F to 158°F)
II. Humidity: 10% to 100%
III. Atmospheric Pressure: 500 to 1060hPa (7.25 to 15.37 PSIA)

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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3) SET-UP/OPERATION/CLEANING & STORAGE
a) Equipment Set-Up
I. Before use, check the air filter for accumulated dust. If filter is dirty, replace it with a new one.
Refer to, “General Maintenance and Checkout Procedures”, for filter replacement instructions.
II. Check to ensure that the water level in the reservoir is at its maximum level. The maximum level
is at the lowest level of the fill spout (or threaded neck). Refer to “Filling Instructions”.
CAUTION
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.
III. The Electri-Cool® II should be placed on a secure, flat surface at least 61cm (2 feet) from any
wall or object that may restrict airflow to the unit. A bed bracket or universal stand as listed in
“Accessories” section can also be used within proximity of the patient such that the attached
hoses will reach the desired therapy site.
Figure 3 - Mounting the Electri-Cool®II to the Bed Bracket

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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b) Filling Instructions
I. Lift the reservoir lid and fill the reservoir with distilled water to its maximum level. The maximum
level is at the lowest level of the fill spout (or threaded neck). Close the lid.
CAUTION
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.
II. Select a CSZ pad and insert the male couplings from the pad into the female couplings on the
hose. Make sure the couplings are locked together tightly. Check the clamps on the pad, making
sure they are fully open. The hose and pad must be free of kinks which might restrict flow. Refer
to “Pad Instructions”
Note: Optimum operation is obtained when water level is well above the low water level marked
“MIN”. The low water cut-off switch will activate before the water level reaches the bottom of the
window.
c) Startup Instructions
I. Plug the power cord into a grounded receptacle providing the proper voltage and frequency.
II. Press the power switch to the “ON” position. Electri-Cool® II will then go into a startup sequence
for approximately one (1) minute. During this sequence, check to make sure that all audible and
visual indicators are working. Check to make sure that there is water flow through the pad. Check
water level and refill with cool distilled water if necessary.
III. The Electri-Cool® II is now ready for use.
d) Setting Temperature
I. The Electri-Cool® II must be filled with distilled water and connected to a pad before attempting to
set temperature.
II. Select a temperature range among the three possible settings:
11°C - 13°C (51°F - 55°F)
8°C - 10°C (46°F - 50°F)
5°C - 7°C (40°F - 45°F)
III. A visual light (temperature indicating LED) located in the upper-left area of the selected button will
indicate the selected range. Allow fifteen to twenty minutes for the water to reach selected
temperature. The time required for the unit to reach the set point depends on the pad used and
the ambient temperature. The time may also vary from patient to patient.

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Figure 4 - Electri-Cool®II Membrane Control Panel

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e) Accessories
The essential accessories for the Electri-Cool®II are listed below:
The Thermal Pads consist of two layers of plastic sealed together to provide multiple passageways for
water flow in a random-flow pattern designed to prevent occlusion.
Localized Cold Therapy Pads
Category Number
Description
Sterile w/o Straps
Sterile w/Straps
Non-Sterile
5" x 10" (12.7cm x 25.4cm)
510-US
510-USS
510-NS
8" x 14" (20.3cm x 35.6cm)
814-US
814-USS
814-NS
11" x 12" (27.9cm x 30.5cm)
1112-US
1112-USS
1112-NS
12" x 15" (30.5cm x 38.1 cm)
1215-US
-
1215-NS
Universal (Knee / Shoulder)
CT-99
Maxi-Therm® Lite Pads
Description
Category Number
12.5” x 18” (31.8cm x 45.7cm)
873
25” x 19” (63.5cm x 31.8cm)
872
22” x 17.25” (55.9cm x 43.8cm)
871
25” x 4” (63.5cm x 10.2cm)
870
ImmobilICE®Supports consist of a Temp-Pad®Pad contained within a polypropylene felt body,
brushed nylon outer laminate and Tietex 100% polyester with hook and loop closures.
ImmobilICE®Supports
Description
Category Number
Universal Back Support
814-IMB
Other Accessories
Description
Category Number
6’ (1.83m) Connecting Hose, Insulated
757-HIE
12” (1 ft.)(30.5cm) Dual Pad Connecting Hose
757-H1D
24” (2 ft.)(61cm) Dual Pad Connecting Hose
757-H2D
8’ (2.44m) Dual Pad Connecting Hose, Insulated
757-H8D
Bed Bracket
767-BBK
Universal Stand (must purchase EC-080)
UNV LPS
Adapter Plate for Universal Stand
EC-080
Dual-Matic (Temp Tester, Flow Meter)
TF-100

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f) Pad Instructions
The Electri-Cool®II has been designed and tested to be used with CSZ thermal pads. Use of unapproved
pads is not recommended. CSZ pads allow maximum flow while resisting restriction or kinks. The unique
foam-layered side or non-woven covered sides offer maximum patient comfort.
I. Read and understand operation manual before connecting pad to Electri-Cool® II.
II. Read and understand pad application instructions accompanying CSZ pad.
III. Connect hose to unit by inserting connectors on hose into connectors on unit. Connectors should
“click” as they lock together.
IV. Apply pad to patient and attach pad to hose by inserting connectors on pad into hose connectors.
Normal use of the pad is to be applied in direct contact with the patient. Pad may be used over or
under a patient, in the flat state or wrapped around patient.
V. If the pad has clamps, make sure clamps on tubing of pad are open.
VI. Turn unit “ON” and set to temperature.
VII. After pad has filled, check water level in unit. Add distilled water, only if necessary.
VIII. When therapy is no longer needed, turn unit “OFF” at the power switch and unplug the power cord
from the outlet.
IX. If the pad has clamps, close clamps on pad.
X. Disconnect pad from hose by depressing metal clips. Dispose of pad.
g) Disposal
Medical Devices that have come in contact with patients contain the risk of bio-contamination. This device
generates no waste products or residues under normal use and normal cleaning routines. Follow local
State and Hospital guidelines regarding disposal of medical devices at the end of their useful lives.
h) Cleaning (External)
The Electri-Cool®II case is constructed of plastic. For cleaning and disinfecting, always use conventional
hospital-approved topical equipment cleaners and disinfectants that do not contain alcohol. Avoid alcohol
and other strong, undiluted disinfectants. These may cause staining of the device’s outer skin. Thoroughly
wipe down device with a damp cloth to remove any residue from cleaning solutions. For internal cleaning,
please see procedure on page 31.
i) Storage
CAUTION
Always drain the Electri-Cool® II to a sanitary drain because bio-contaminants may be present
in the unit’s water supply.
Drain the reservoir completely and clean thoroughly prior to storage of the Electri-Cool®II. Contact the
Cincinnati Sub-Zero Technical Service Department for the reservoir disinfection procedure.

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Table 1 - Tables Presented in Fulfillment of IEC 60601-1-2
Guidance and manufacturer’s declaration – electromagnetic emissions
The Electri-Cool®II system is intended for use in the electromagnetic environment specified below. The customer or the user of the
Electri-Cool®II system should assure that it is used in such an environment.
Emissions tests
Compliance
Electromagnetic environment –guidance
RF emissions
CISPR 11
Group 1
The Electri-Cool®II system uses RF energy only for its internal
function. Therefore, its RF emissions are very low and are not
likely to cause any interference in nearby electronic equipment.
RF emissions
CISPR 11
Class A
The Electri-Cool®II system is suitable for use in all establishments
other than domestic and those directly connected to the public low-
voltage power supply network that supplies buildings used for
domestic purposes.
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
Guidance and manufacturer’s declaration – electromagnetic immunity
The Electri-Cool®II system is intended for use in the electromagnetic environment specified below. The customer or the user of the
Electri-Cool®II system should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment - guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete or ceramic tile. If floors
are covered with synthetic material, the relative humidity
should be at least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power supply
lines
±1 kV for input/output
lines
±2 kV for power
supply lines
±1 kV for input/output
lines
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV common mode
±1 kV differential
mode
±2 kV common mode
Mains power quality should be that of a typical
commercial or hospital environment.
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11
<5% UT
(>95% dip in UT)
for 0,5 cycle
40% UT
(60% dip in UT)
for 5 cycles
70% UT
(30% dip in UT)
for 25 cycles
<5% UT
(>95% dip in UT)
for 5 s
<5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycles
70% UT
(30% dip in UT)
for 25 cycles
<5% UT
(>95% dip in UT)
for 5 s
Mains power quality should be that of a typical
commercial or hospital environment. If the user of the
Electri-Cool®II system requires continued operation
during power mains interruptions, it is recommended that
the Electri-Cool®II system be powered from an
uninterruptible power supply or a battery.
Power frequency
(50/60 Hz) magnetic
field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields should be at levels
characteristic of a typical location ina typical commercial
or hospital environment.
Note: UT is the a.c. mains voltage priorto application of the test level.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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Guidance and manufacturer’s declaration – electromagnetic immunity
The Electri-Cool®II system is intended for use in the electromagnetic environment specified below. The customer or the user of the
Electri-Cool®II system should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the Electri-Cool®
II system, including cables, than the recommended
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
d = 1,2√P
d = 1,2√P 80 MHz to 800 MHz
d = 2,3√P 800 MHz to 2,5 GHz
Where Pis themaximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and dis the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey,ashould be less than
the compliance level in each frequency range.b
Interference may occur in the vicinity of equipment
marked with the following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
aField strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radio, AM and FMradio broadcast and TV broadcast cannot be predicated theoretically with accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic sitesurvey should be considered. If the measure
field strength in the location in which the Electri-Cool®II system is used exceeds the applicable RF compliance level above, the
Electri-Cool®II system should be observed to verify normal operation. If abnormal performanceis observed, additional measures
may be necessary, such as re-orienting or relocating the Electri-Cool®II system.
bOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
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Recommended separation distances between portable and mobile RF communications equipment
and the Electri-Cool®II system
The Electri-Cool®II system is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or the user of the Electri-Cool®II system can help prevent electromagnetic interference bymaintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the Electri-Cool®II system as recommended below,
according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
Separation distance according to frequencyof transmitter
m
150 kHz to 80 MHz
d = 1,2√P
80 MHz to 800 MHz
d = 1,2√P
800 MHz to 2,5 GHz
d = 2,3√P
0,01
0,12
0,12
0,23
0,1
0,38
0,38
0,73
1
1,2
1,2
2,3
10
3,8
3,8
7,3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance din meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where Pis the maximum output power rating of the
transmitter in watts (W) according to the transmittermanufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.

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4) TROUBLESHOOTING GUIDE
a) General
This section provides information to aid the service technician in diagnosing problems with the Electri-
Cool®II system. The left column lists problems which may occur; the right column lists the most probable
causes of the problem.
Problem Probable Cause
Unit will not turn on. 1. Unit not plugged into proper voltage supply.
2. Blown fuse.
3. Loose connector.
Unit turns on, but will not pump 1. Kinks in pad/hose.
2. Improper connections to pad/hose.
3. Improper connections to P.C. board.
4. Defective P.C. board.
Unit will not cool. 1. Air filter clogged.
2. Air intake blocked.
3. Air outlet vents restricted.
4. Defective P.C. board
Low water warning light/audible on. 1. Reservoir water level too low.
2. Unit Tilted
3. Defective P.C. board(s).
Low temp warning light/audible on. 1. Water used to fill pump too cold.
2. No water flow.
3. Defective P.C. board(s).
LED(s) will not illuminate. 1. Defective membrane control panel.
2. Defective P.C. board.
Desired setting cannot be set 1. Defective membrane control panel.
2. Loose connection to membrane control panel.
3. Defective P.C. board.
Ground continuity exceeds .2 ohm. 1. Loose or disconnected ground (green) wire(s).
2. Defective connector on ground wire.
3. Defective power cord.
Leakage current exceeds 300 1. Defective Power supply
microamperes.
b) Indicator Specifics
Indicator Condition
Indicator
Water Low Temp Limit
Constant blue LED & audible indicator
Low Water
Constant blue LED & audible indicator
Internal Heatsink High
Temp Limit
Unit completely shuts down

OPERATION AND TECHNICAL MANUAL ELECTRI-COOL®II, MODEL 767
Page 20 of 34
5) GENERAL MAINTENANCE AND CHECKOUT PROCEDURE
It is suggested you perform the following procedures quarterly in their order of listing and document the results on
a Preventive Maintenance Inspection Record. Refer to Table 2 for an example of an inspection form.
a) Exterior Physical Inspection
Look for cracked, bent, missing, or otherwise damaged parts. Carefully inspect the power cord for cuts or
exposed wire. Check the plug for missing or bent pins. Remove the fuse and make sure it is the same
type and rating as described on top of the unit.
b) Air Filter Inspection
Inspect filter before each use of unit. Remove air filter retainer to access the air filter on the bottom of the
unit. Inspect the filter for accumulated dust. If the filter is 30% clogged with dust, replace filter with a new
one and reattach the air filter retainer.
Figure 5 - Electri-Cool®II Filter View
c) Flow Test
Maximum flow rate is obtained with water temperature at room temperature and the pad lying flat on a
smooth surface. If no flow rate is observed, check for kinks in the pad or hose, clamps closed on pad, or
couplings not properly seated and locked together, or reversed connections to the pump. Allow water
temperature to reach room temperature, and check flow rate with a flow meter. If the flow rate is
substantially less than 68 LPH (18 GPH), check the pump and/or pad/hose for restrictions. See
Troubleshooting Guide.