Bair Hugger 750 Service Manual

Bair Hugger 750 Service Manual

Warming unit
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Check the Bair Hugger therapy website to ensure you have the most recent version of this document.
Warning: Electrical Shock Hazard. There are electrically live parts within the temperature management unit when it is connected to a power
source, even when the unit is in Standby mode.
For information on operating the Model 750 temperature management unit, please refer to the Model 750 Operator's Manual.
Please forward to Biomedical Engineering Department
Bair Hugger Modell 750 Temperaturmanagementgerät Service Gebrauchsanleitung
Warnung: Gefährliche elektrische Spannung. In einem an das Netz angeschlossenen Temperaturmanagement-Gerät stehen bestimmte elektrische
Komponenten auch dann unter Strom, wenn sich das Gerät im Betriebsmodus Standby befindet.
Informationen zum Betrieb des Temperaturmanagement-Gerätes Modell 750 finden Sie im Betriebshandbuch für das Modell 750.
Bitte an die Abteilung für biomedizinische Technik weiterleiten.
Unité de gestion de température Bair Hugger modèle 750 Service Manuel
Avertissement : risque de secousses électriques. L'appareil de gestion de la température contient des pièces qui sont sous tension lorsqu'il est
raccordé à une source d'alimentation et cela même si l'appareil est en mode d'attente.
Pour de plus amples informations sur le fonctionnement de l'appareil de gestion de la température, modèle 750,
consulter le manuel de l'utilisateur du modèle 750.
A transmettre au Service d'ingénierie biomédicale
T o t a l T e m p e r a t u r e M a n a g e m e n t S y s t e m
Bair Hugger
Model 750 Warming Unit
www.bairhugger.com
*
Service Manual
reorder #200595F

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Summary of Contents for Bair Hugger 750

  • Page 1 Warning: Electrical Shock Hazard. There are electrically live parts within the temperature management unit when it is connected to a power source, even when the unit is in Standby mode. For information on operating the Model 750 temperature management unit, please refer to the Model 750 Operator’s Manual. Please forward to Biomedical Engineering Department Bair Hugger Modell 750 Temperaturmanagementgerät Service Gebrauchsanleitung...
  • Page 2 Bair Hugger Model 750 Warming Unit Service Manual English Deutsch Français...
  • Page 3: Table Of Contents

    Table of Contents Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Description of the Total Temperature Management System �...
  • Page 4: Description Of The Total Temperature Management System

    (with available rolling stand and sheet clip) and disposable components, including Bair Hugger forced-air blankets, Bair Paws* patient warming gowns, and the 241* blood/fluid warming set� You can use the Model 750 temperature management unit in all clinical settings including the operating room to provide patient temperature management�...
  • Page 5: Cautions

    Cautions 1� Except for specific blanket models, Bair Hugger blankets are not sterile and are all intended for single patient use ONLY� Placing a sheet between the Bair Hugger blanket and the patient does not prevent contamination of this product�...
  • Page 6: Notices

    If service does not require the manufacturer’s attention, the Model 750 Service Manual provides the technical information needed to service the unit, or Arizant Healthcare Inc�...
  • Page 7: Overview

    Bair Hugger Model 750 Temperature Management Unit Service Manual Overview When you connect the Model 750 temperature management unit to a grounded power source, the unit automatically performs the power-on-reset operation described below� Following the power-on-reset operation, the unit will enter the Standby mode� You can select any operating mode by pressing the appropriate button on the unit’s control panel�...
  • Page 8: Operating Modes

    Bair Hugger Model 750 Temperature Management Unit Service Manual Operating Modes The Model 750 temperature management unit has 4 operating modes: Ambient, Low, Medium, High. To select the Low, Medium, High, or Ambient mode, press the corresponding button� The temperature management unit will operate within the specified temperature range, shown in the table below�...
  • Page 9: Fault Conditions

    Bair Hugger Model 750 Temperature Management Unit Service Manual Fault Conditions The Model 750 temperature management unit’s software recognizes several nonhazardous fault conditions including: • Sensor failures • Heater failures • Computer failure • Software failure • Keypad failure •...
  • Page 10: Alternative Modes

    Bair Hugger Model 750 Temperature Management Unit Service Manual Alternative Modes The Model 750 temperature management unit has 5 alternative modes that allow access to the service and calibration utilities of the unit� Alternative Modes AltMode0 Hour meter Calibration AltMode1...
  • Page 11: Accessing The Alternative Modes

    To access the alternative modes, you must press the Alternative Mode button that is located on the front panel of the temperature management unit but is unlabeled� Press the “Bair Hugger” text on the bear logo when the instructions direct you to press the alternative mode button�...
  • Page 12: Service Procedures

    NOTES: • The Model 22110 Temperature Test Unit simulates the operating characteristics of Bair Hugger blankets when used with Bair Hugger temperature management units� • When using the Model 22110 Test Unit, take temperature readings using a calibrated thermometer that can accept a male, subminiature connector and read a “K” style thermocouple (e�g�, a Fluke Model 52 K/J Thermometer)�...
  • Page 13 Bair Hugger Model 750 Temperature Management Unit Service Manual Method Note: If the temperature management unit has been stored at a temperature lower than 20˚C, allow it to reach ambient temperature before beginning the calibration procedure� 4� Attach the Model 22110 temperature test device to the end of the temperature management unit hose�...
  • Page 14: Testing The Over-Temperature Detection System

    Bair Hugger Model 750 Temperature Management Unit Service Manual Testing the Over-Temperature Detection System warning Do not perform the over-temperature detection system test while the temperature management unit is being used for temperature management therapy� Thermal injury may result� caution Connect each warming unit being tested to a separate power source�...
  • Page 15 Bair Hugger Model 750 Temperature Management Unit Service Manual 5� Wait for the temperature management unit to perform the over-temperature test� When the test is complete, the temperature management unit performs the following tasks: • Heater elements deactivate� • Blower continues to operate� ( note: The blower turns off if an over-temperature condition occurs during normal use�)
  • Page 16: Viewing The Fault Code Log

    Bair Hugger Model 750 Temperature Management Unit Service Manual Viewing the Fault Code Log Service frequency As often as necessary� Tools/equipment None required� Method 1� If your temperature management unit is already ON, you can access the fault code log from any operating mode�...
  • Page 17: Fault Code Table

    Bair Hugger Model 750 Temperature Management Unit Service Manual Fault Code Table The software will detect and report the following conditions by displaying the corresponding fault code: Fault Condition_______________________________Fault Code Internal sensor 1 over-temperature condition Hose end sensor 2 over-temperature condition...
  • Page 18: Viewing The Hour Meter

    Bair Hugger Model 750 Temperature Management Unit Service Manual Viewing the Hour Meter Service frequency As often as necessary� Tools/equipment None required� Method 1� If your unit is already ON, you can begin the test from any operating mode� Otherwise, connect the temperature management unit to a grounded power source�...
  • Page 19: Replacing The Air Filter

    Bair Hugger Model 750 Temperature Management Unit Service Manual Replacing the Air Filter Service frequency Every 6 months or 500 hours of use� Tools/equipment • Replacement air filter • #2 Phillips screwdriver warning Do not attempt to clean the air filter as it may contain hazardous microorganisms� Discard the filter in a manner consistent with institutional protocol for biohazardous material�...
  • Page 20: Replacing The Hose

    Bair Hugger Model 750 Temperature Management Unit Service Manual Replacing the Hose Service frequency As needed� Tools/equipment • Replacement hose • Phillips screwdriver • Slotted screwdriver (for grommet replacement option) • Needle-nose pliers • Screw grommets (included in kit) Method DETACHING HOSE 1�...
  • Page 21 Bair Hugger Model 750 Temperature Management Unit Service Manual Figure 3� Hose replacement REATTACHING HOSE 1� Attach the cable connector of the new hose to the header plug, making sure that the protrusions on the connector align with the corresponding slots on the header�...
  • Page 22: Cleaning The Warming Unit

    Bair Hugger Model 750 Temperature Management Unit Service Manual Cleaning the Warming Unit Service frequency As needed� Tools/equipment • Soft cloth lightly dampened with water • Mild detergent or antimicrobial spray • Dry soft cloth warning • Do not immerse the cabinet or hose while cleaning� Moisture will damage the components, and thermal injury may result�...
  • Page 23: Technical Support And Customer Service

    0800-877-088 (Toll-free in Switzerland) When You Call for Technical Support We will need to know the serial number of your Bair Hugger temperature management unit when you call us� The serial number label is located on the back or side of the unit�...
  • Page 24: Returning Units For Service

    Bair Hugger Model 750 Temperature Management Unit Service Manual Returning Units for Service Tools/equipment • Arizant Healthcare service carton • Tape dispenser • Shipping label • Marking pen Method 1� Call Technical Support (see page 20 for contact information) to get a Return Authorization (RA) number and a service carton�...
  • Page 25: Specifications

    Bair Hugger Model 750 Temperature Management Unit Service Manual Specifications Physical Characteristics dimensions 12˝ high x 13�5˝ deep x 10˝ wide 30 cm high x 34 cm deep x 25 cm wide weight 15�5 lb (7kg) relative noise level 55 dBA...
  • Page 26 Bair Hugger Model 750 Temperature Management Unit Service Manual Electrical Characteristics heating element 1400 W Resistive leakage current Meets UL 60601-1 and IEC 60601-1 requirements� blower motor Operating speed: approximately 4,000 rpm Airflow: up to 48 cfm or 23 L/s...
  • Page 27: Maintenance Log

    Bair Hugger Model 750 Temperature Management Unit Service Manual Maintenance Log aintenance ction erforMed eter...
  • Page 28: Definition Of Symbols

    Bair Hugger Model 750 Temperature Management Unit Service Manual Definition of Symbols The following symbols may appear on the product’s labeling or exterior packaging� ON/STANDBY ON (used on isolation switch) OFF (used on isolation switch) ON/OFF push button switch Temperature control...

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