Gentherm Electri-Cool II User manual

Technology to the next degree™
ELECTRI-COOL® II
OPERATION AND TECHNICAL MANUAL
Model 767 Localized Cooling System
Gentherm Medical, LLC • 12011 Mosteller Road Cincinnati, Ohio 45241, U.S.A. www.gentherm.com

Gentherm Customer Relations
Gentherm Medical, LLC
Telephone [phone]
Toll-Free 1-800-989-7373
Fax [phone]
24-Hour Clinical Support 1-513-460-2038
Medical Technical Support 1-888-437-5608
Email [email protected]
Website: https://www.gentherm.com
Mailing Address: 12011 Mosteller Road
Cincinnati OH 45241
USA
Electri-Cool® II is a registered trademark of Gentherm Medical, LLC, Cincinnati, Ohio, USA.
© 2021, Gentherm Medical, LLC All rights reserved.
All other trademarks are the property of their respective owners.
Part No. 56269 Rev. V

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Electri-Cool II Model 767SECTION TITLE
Contents
1.0 Introduction ..............................................................1
1.1 Receiving and Inspection/ Important Safety Information .............................1
1.2 General Safety Precautions .......................................................1
1.3 General Product Description ......................................................1
1.4 Indications for Use ..............................................................2
1.5 Contraindications ...............................................................2
1.6 Transporting and Shipping .......................................................2
2.0 General Safety Precautions ................................................ 2
3.0 Warnings.................................................................3
4.0 Cautions .................................................................3
5.0 Symbols on the Device and in the Manual .................................... 5
6.0 Serial Number ............................................................7
7.0 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
7.1 Receiving Inspection and Setup .................................................. 7
8.0 Technical Help ............................................................7
9.0 Authorized European Representative.........................................7
10.0 Introduction ............................................................. 8
10.1 Before you call for service..........................................................8
11.0 Setup................................................................... 9
11.1 Equipment Set-Up ..............................................................9
11.2 Mounting the unit to a bed bracket ................................................9
11.3 Reservoir Filling Instructions .................................................... 10
11.4 Startup Instructions ............................................................ 10
11.5 Setting Temperature ........................................................... 10
11.6 Accessories.................................................................... 12
11.7 Pad Instructions ............................................................... 13
11.8 Disposal ...................................................................... 13
11.9 Cleaning (External)............................................................. 13
11.10 Storage ....................................................................... 14
12.0 Electromagnetic Emissions ................................................14
13.0 Maintenance ............................................................18
13.1 Overview ...................................................................... 18

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13.2 Inspection Frequency .......................................................... 18
13.3 Exterior Physical Inspection & Cleaning........................................... 18
13.4 Draining the Reservoir .......................................................... 18
14.0 Air Filter Inspection and Replacement.......................................19
14.1 Remove the Filter Retainer .....................................................20
15.0 Draining the Reservoir ................................................... 22
16.0 Troubleshooting Guide ................................................... 24
16.1 General .......................................................................24
16.2 Indicator Specifics .............................................................25
17.0 Service ................................................................ 26
18.0 ECII Interior Access...................................................... 27
18.1 Flow Test......................................................................28
18.2 Water Leak Test ................................................................28
18.3 Temperature Test ..............................................................28
18.4 Low Water Switch/Indicator Test .................................................29
18.5 Leakage Current Test ...........................................................30
18.6 Ground Continuity Test .........................................................30
18.7 Water Temperature Low-Limit Thermistor Test.....................................30
18.8 Internal Physical Inspection ..................................................... 31
19.0 Preventive Maintenance for Service Personnel............................... 33
20.0 Rear Enclosure and Reservoir Lid Replacement.............................. 38
20.1 Rear Enclosure and Reservoir Lid Removal .......................................39
20.2 Rear Enclosure and Reservoir Lid Installation ..................................... 41
21.0 Front Enclosure Replacement............................................. 43
21.1 Front Enclosure Removal .......................................................44
21.2 Front Enclosure Installation .....................................................45
22.0 Bottom Enclosure Replacement ........................................... 47
22.1 Bottom Enclosure Removal .....................................................48
22.2 Bottom Enclosure Installation ...................................................49
23.0 Equipotential Grounding Stud Replacement ................................ 50
23.1 Grounding Stud Removal .......................................................50
23.2 Grounding Stud Installation ..................................................... 51
24.0 Membrane Panel Replacement ............................................ 53
24.1 Membrane Panel Removal ......................................................54
24.2 Membrane Panel Installation....................................................55

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Electri-Cool II Model 767SECTION TITLE
25.0 Float Switch Replacement ................................................ 56
25.1 Float Switch Removal ..........................................................57
25.2 Float Switch Installation ........................................................58
26.0 Reservoir Replacement ...................................................61
26.1 Reservoir Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
26.2 Reservoir Installation...........................................................63
27.0 Pump Replacement ..................................................... 64
27.1 Pump Removal ................................................................65
27.2 Pump Installation ..............................................................68
28.0 Quick Disconnect Panel Mount Couplings Replacement........................71
28.1 Quick Disconnect Removal ......................................................72
28.2 Quick Disconnect Installation.................................................... 74
29.0 Fuse Replacement .......................................................77
29.1 Fuse Removal .................................................................78
29.2 Fuse Installation ...............................................................79
30.0 Power Inlet and Wire Harness Replacement ................................. 80
30.1 Power Inlet Removal ........................................................... 81
30.2 Power inlet Installation .........................................................84
31.0 Control Board Replacement .............................................. 87
31.1 Control Board Removal .........................................................88
31.2 Control Board Installation.......................................................89
32.0 Power Supply Replacement............................................... 90
32.1 Power Supply Removal ......................................................... 91
32.2 Power Supply Installation .......................................................93
33.0 Thermoelectric (TE) Module Replacement .................................. 96
33.1 TE Module Removal............................................................97
33.2 TE Module Installation..........................................................99
34.0 Fan Motor Replacement ..................................................101
34.1 Fan Motor Removal ...........................................................102
34.2 Fan Motor Installation .........................................................103
35.0 Fan Guard Replacement................................................. 106
35.1 Fan Guard Removal ........................................................... 107
35.2 Fan Guard Installation ..........................................................110
36.0 Specifications ..........................................................113
36.1 Expected Service LIfe ..........................................................114
36.2 Replacement Parts.............................................................118

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37.0 Fluid Circuit Disinfection/Dry Storage Procedure ........................... 122
37.1 Draining the Electri-Cool II .....................................................122
37.2 Chemical Cleaning Circulation Chart ............................................122
37.2.1 Disinfection/Dry Storage Procedure.............................................122
38.0 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
38.1 General Safety and Electrical Safety.............................................124

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Electri-Cool II Model 767SECTION TITLE
List of Figures
Figure 1 Mounting the unit to a bed bracket ......................................9
Figure 2 Mounting the bed bracket to rear enclosure ..............................9
Figure 3 Electri-Cool II Membrane Control Panel .................................11
Figure 4 Step 1 Unplug power cord.............................................20
Figure 5 Step 2 Pry off retainer ................................................20
Figure 6 Step 3 Discard used filter .............................................20
Figure 7 Step 4 Place filter in retainer .......................................... 21
Figure 8 Step 5 Align tabs to slots ............................................. 21
Figure 9 Step 6 Press retainer into place........................................ 21
Figure 10 Step 1 Unplug power from mains ....................................22
Figure 11 Step 3 Open reservoir lid .............................................22
Figure 12 Step 4 Tip unit forward ...............................................22
Figure 13 Control board diagram................................................32
Figure 14 Detail A Operate Position .............................................32
Figure 15 Detail A Test Position .................................................32
Figure 16 Exploded view with callouts ...........................................35
Figure 17 Step 1 Unplug power cord.............................................39
Figure 18 Step 3 Remove two handle screws .....................................39
Figure 19 Step 4 Remove two base screws .......................................39
Figure 20 Step 5 Remove collar ................................................40
Figure 21 Step 6 Lift rear enclosure with lid up and away ..........................40
Figure 22 Step 1 Install enclosure and lid ........................................ 41
Figure 23 Step 2 Install reservoir collar .......................................... 41
Figure 24 Step 3 Install two base enclosure screws. ............................... 41
Figure 25 Step 4 Install two handle screws .......................................42
Figure 26 Step 2 Remove four screws ...........................................44
Figure 27 Step 4 Remove front enclosure ........................................44
Figure 28 Step 5 Disconnect ribbon cable .......................................44
Figure 29 Step 3 Install front enclosure. .........................................45

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Figure 30 Step 5 Reconnect ribbon cable........................................45
Figure 31 Step 5 Install front enclosure..........................................46
Figure 32 Step 5 Remove rubber feet ...........................................48
Figure 33 Step 1 Install feet ....................................................49
Figure 34 Step 2 Apply the BF label.............................................49
Figure 35 Step 3 Apply the GTIN label...........................................49
Figure 36 Step 1 Remove 1st Keps nut ...........................................50
Figure 37 Step 2 Remove ground wire and second Keps nut .......................50
Figure 38 Step 1 Insert stud .................................................... 51
Figure 39 Step 2 Add the green and gold ring .................................... 51
Figure 40 Step 3 Install Keps nuts 1 & 2..........................................52
Figure 41 Step 5 Attach ground wire and second Keps nut .........................52
Figure 42 Step 3 Unplug ribbon cable ...........................................54
Figure 43 Step 4 Push flat screwdriver through cable slot from the inside ...........54
Figure 44 Step 1 Thread cable through slot.......................................55
Figure 45 Step 4 Connect ribbon cable ..........................................55
Figure 46 Step 3 Disconnect J7 .................................................57
Figure 47 Step 4 Loosen reservoir insulation .....................................57
Figure 48 Step 5 Unscrew float switch mounting nut ..............................57
Figure 49 Step 1 GEMS orientation ..............................................58
Figure 50 Step 2 Thread wires through gasket ....................................58
Figure 51 Thread connector and wires through reservoir ...........................58
Figure 52 Step 4 Secure float switch mounting nut................................59
Figure 53 Step 5 Loosen reservoir insulation .....................................59
Figure 54 Step 6 Route wiring behind bracket ....................................59
Figure 55 Step 7 Attach connector to J7..........................................60
Figure 56 Step 5 Loosen two hose clamps .......................................62
Figure 57 Step 6 Remove tubing................................................62
Figure 58 Step 1 connect tubing to reservoir with clamps ..........................63
Figure 59 Step 3 Float switch wires position ......................................63
Figure 60 Step 4 Connect float switch to J7.......................................63

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Figure 61 Step 3 Unplug pump wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Figure 62 Step 4 Remove the wire tie............................................65
Figure 63 Step 5 Remove EMI suppressor .......................................65
Figure 64 Step 7 Remove discharge tubing.......................................66
Figure 65 Step 5 Loosen two hose clamps .......................................66
Figure 66 Step 6 Unscrew pump bracket from base enclosure......................66
Figure 67 Step 8 Remove inlet tubing ...........................................67
Figure 68 Step 1 Remove pump from bracket.....................................67
Figure 69 Step 1 Mount pump to bracket.........................................68
Figure 70 Step 2 Mount bracket to base .........................................68
Figure 71 Step 3 slide tubing onto new pump ....................................68
Figure 72 Step 4 Tighten the hose clamps........................................69
Figure 73 Step 5 Install EMI suppressor .........................................69
Figure 74 Step 6 Wire tie below EMI suppressor ................................69
Figure 75 Step 7 Secure wires to bracket .........................................70
Figure 76 Step 8 Route wires behind bracket .....................................70
Figure 77 Step 9 Connect power wire connector to J5 .............................70
Figure 78 Step 4 Tubing at 90 degree elbow .....................................72
Figure 79 Step 5 Remove tubing from pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 80 Step 6 Slide retainer nuts up .......................................... 73
Figure 81 Step 7 Pull couplings out of enclosure .................................73
Figure 82 Slide retainer nuts onto tubing ........................................ 74
Figure 83 Step 6 Extend tubing through enclosure................................74
Figure 84 Step 7 Insert couplings into hose ......................................75
Figure 85 Step 8 Turn and align couplings .......................................75
Figure 86 Step 9 Tighten retaining nuts..........................................76
Figure 87 Step 11 Tape the exposed clamps ......................................76
Figure 88 Step 12 Apply electrical tape around insulation .......................76
Figure 89 Step 1 Unplug power .................................................78
Figure 90 Step 2 Open fuse door ...............................................78
Figure 91 Step 3 Note direction arrows ..........................................78

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Figure 92 Step 1 Place fuses into holders ........................................79
Figure 93 Step 2 Match arrow direction ..........................................79
Figure 94 Step 3 Locking tabs ..................................................79
Figure 95 Step 3 Plastic power inlet shroud ...................................... 81
Figure 96 Step 4 Remove retaining Keps nut and ground wires ..................... 81
Figure 97 Step 5 Disconnect harness from the power supply . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 98 Step 6 Remove suppressor............................................82
Figure 99 Step 7 Remove retaining screws .......................................83
Figure 100 Step 8 Power inlet removal 2 .........................................83
Figure 101 Step 2 Install power inlet .............................................84
Figure 102 Step 3 Connect control board wires to J2 ...............................84
Figure 103 Step 4 Install EMI suppressor .........................................84
Figure 104 Step 5 Route wire harness connector behind bracket.....................85
Figure 105 Step 6 Connect power supply .........................................85
Figure 106 Step 7 Attach all grounding wires ......................................85
Figure 107 Step 8 Reinstall plastic power inlet shroud..............................86
Figure 108 Step 3 Disconnect all 5 connectors.....................................88
Figure 109 Step 4 Remove three plastic screws ....................................88
Figure 110 Step 5 Remove three plastic washers (one shown) .......................88
Figure 111 Step 1 Remove three plastic washers (one shown) .......................89
Figure 112 Step 2 Reinstall three plastic screws ...................................89
Figure 113 Step 3 Connect all 5 connectors .......................................89
Figure 114 Step 4 Unscrew power supply from front bracket ........................ 91
Figure 115 Step 5 Control board power wire harness ............................... 91
Figure 116 Step 6 Remove Phillips screws from rear braket. ........................92
Figure 117 Step 7 Disconnect power supply wires to power inlet .....................92
Figure 118 Step 8 Remove wire tie on power supply................................92
Figure 119 Step 1 Connect power supply wires from power inlet .....................93
Figure 120 Step 2 Install two truss-head screws on rear bracket .....................93
Figure 121 Step 3 Connect fan wires to the power supply ...........................93
Figure 122 Step 4 Detail ........................................................94

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Figure 123 Step 5 Power supply wires placement ..................................94
Figure 124 Step 6 Secure power supply wires to front bracket .......................94
Figure 125 Step 7 Wire tie the harness to the third slot..............................95
Figure 126 Step 5 Remove screws and plastic spacers .............................. 97
Figure 127 Step 6 Remove two screws attaching the TE module to the back bracket ... 97
Figure 128 Step 7 Remove tubing from TE module.................................98
Figure 129 Step 1 Reconnect TE tubing ...........................................99
Figure 130 Step 2 Install 2 screws attaching TE module to the front bracket ..........99
Figure 131 Step 3 Install 2 screws and spacers ....................................99
Figure 132 Step 7 Remove the fan ..............................................102
Figure 133 Step 8 Remove brackets .............................................102
Figure 134 Step 1 Install four screws into fan guard holes ..........................103
Figure 135 Step 2 Place filter into retainer .......................................103
Figure 136 Step 3 Re-attach filter retainer .......................................103
Figure 137 Step 4 Raise up off table.............................................104
Figure 138 Step 5 Install brackets...............................................104
Figure 139 Step 6 Place fan over TE brackets on fan guard screws ..................104
Figure 140 Step 7 Wire position .................................................105
Figure 141 Step 3 Pry filter cover off............................................. 107
Figure 142 Step 4 Remove shield ............................................... 107
Figure 143 Step 5 Unscrew four screws .......................................... 107
Figure 144 Step 6 Remove Keps nut #1 ..........................................108
Figure 145 Step 7 Remove Keps nut #2..........................................108
Figure 146 Step 8 Remove Keps nut #3..........................................108
Figure 147 Step 9 Remove Keps nut #4..........................................109
Figure 148 Step 1 Insert screws in order. ..........................................110
Figure 149 Step 3 Hold Keps nut #3..............................................110
Figure 150 Step 4 Insert screw #4................................................110
Figure 151 Step 5 Hold Keps nut #4..............................................111
Figure 152 Step 6 Place plastic shield in position ..................................111

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Figure 153 Step 2 Place filter into retainer ........................................111
Figure 154 Step 8 Re-attach filter retianer ........................................112
Figure 155 Exploded view ......................................................120
Figure 156 Wiring Schematic ....................................................121

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List of Tables
Table 1 Device and Manual Symbols ...........................................5
Table 2 Presented in Fulfillment of IEC 60601-1-2 .............................. 14
Table 3 Electromagnetic Immunity............................................ 15
Table 4 Troubleshooting .....................................................24
Table 5 Preventive Maintenance Inspection Sheet ..............................33
Table 6 Parts List............................................................36

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Electri-Cool II Model 767SECTION TITLE
1.0 Introduction
Use this manual for service and repair information. Read and understand all
precautions before servicing the device.
1.1 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 Gentherm. Call our Medical Technical Service department for
further instruction.
1.2 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.
Gentherm recommends reading this manual at least semi-annually for safe operation and
application. In-service training is available upon request.
This manual may not be reproduced in whole or in part without written permission from
Gentherm Medical, LLC.
Gentherm Medical, LLC reserves the right to make changes to the Electri-Cool II that might
not be reflected in this manual. Current manuals are available on the website: https://www.
gentherm.com
1.3 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 sterile water
or water that has been passed through a filter less than or equal to 0.22 microns; 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.

Operation & Service Manual
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1.4 Indications for Use
The Electri-Cool® II, Model 767 Portable Cold Therapy Unit 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.
1.5 Contraindications
There are currently no known contraindications.
1.6 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:
Temperature: -40°C to 70°C (–40°F to 158°F)
Humidity: 10% to 100%
Atmospheric Pressure: 500 to 1060hPa (7.25 to 15.37 PSIA)
Receiving Inspection
After unpacking the ELECTRI-COOL II System, be sure to inspect the components 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 Gentherm. Call our Medical Technical
Service department for further instructions.
2.0 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.

Warnings Electri-Cool II Model 767
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3.0 Warnings
Gentherm Medical, LLC, reserves the right to make equipment changes and
improvements, which may not be reflected in this manual.
• 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 pad. Also check pad 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 pad. Skin damage may
occur.
• The area between the patient and the pad 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 section 11.4 Startup Instructions, on page 10 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.
4.0 Cautions
• US Federal Law restricts this device to sale by or on the order of a physician.
• Use sterile water or water that has been passed through a filter less than or equal
to 0.22 microns only. Do not use De-Ionized water. De-ionized water may cause
corrosion to plumbing system components. Do not use tap water or distilled water.

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• Do not use alcohol. Alcohol may cause pad and unit deterioration.
• Do not overfill. Overfilling may result in overflow when the water in the pad 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.

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Introduction
5.0 Symbols on the Device and in the Manual
Table 1. Device and Manual Symbols
Symbol Definition
I/O On / Off
Read and Understand the Manual
Warning
Inspect and Change Filter Regularly
Low Water Level
Caution
2°C/36°F
Low Water Temperature
Type B Applied Part
Temperature Settings
Alternating Current
Externally Accessible Fuse

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Table 1. Device and Manual Symbols
Symbol Definition
Potential Equalization Connection (Grounding)
AP
GRisk 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