Bair Paws Model 850 Warming Unit Service Manual ® Warning: Electrical Shock Hazard. There are electrically live parts within the warming unit when it is connected to a power source, even when the hand-held temperature controller is in the OFF position.
Table of Contents Introduction to the Bair Paws® Patient Adjustable Warming System.....................................1 Important Information about the Bair Paws Model 850 Warming Unit...............................2 Indications/Intended Use.........................................................................................2 Contraindication......................................................................................................2 Warnings...................................................
Introduction to the Bair Paws® Patient Adjustable Warming System The Bair Paws patient adjustable warming system consists of the Model 850 forced-air warming unit and disposable warming gowns. The Bair Paws Model 850 and warming gown can provide comfort warming and prewarming to patients in preoperative settings. In postoperative settings the Model 850 can provide comfort warming. This manual includes service procedures and unit specifications for the Model 850 warming unit.
Important Information about the Bair Paws Model 850 Warming Unit Indications/Intended Use The Model 850 warming unit is indicated for patient warming. This warming unit has been designed for use with the Bair Paws warming gowns in all preoperative and postoperative settings. Contraindication Do not apply heat to lower extremities during aortic cross-clamping. Thermal injury may occur if heat is applied to ischemic limbs. Warnings • 2 Do not warm patients with the warming unit’s hose alone.
Precautions • Do not initiate patient warming unless the Model 850 warming unit is safely placed on a hard surface or securely mounted. Otherwise, injury may result. • The Model 850 warming unit meets the international electronic interference requirements of EN 60601-1-2 and EN 55011. However, if radio frequency interference with monitoring equipment occurs, connect the warming unit to a different power source.
Preparing the Bair Paws Model 850 Warming Unit for Use Before using the warming unit, make sure that it is safely placed on a flat, hard surface such as a table, or securely mounted on a wall, IV pole, or bedrail. Caution: Do not place the warming unit on a soft or uneven surface, such as a bed, or the air intake may become blocked. A wall-mount bracket is shipped with every warming unit; the brackets for mounting the warming unit to an IV pole or a bedrail are available separately.
Mounting the Warming Unit to the Wall-mount 1. Slide the V-shaped bracket on the back of the warming unit into the groove of the wall-mount bracket. 2. Tighten the 2 setscrews located on either side of the wall-mount bracket using a three-inch-long (or longer) small Phillips screwdriver to lock the unit in place (see Figure 2). Setscrew Figure 2. Side view of warming unit in the wall-mount bracket. Arizant Healthcare Inc.
Mounting the Warming Unit on an IV Pole Caution: To prevent tipping, mount the Model 850 warming unit on an IV pole at a height that ensures stability. We recommend mounting the warming unit no higher than 44 in. (112 cm) from the floor on an IV pole with a minimum wheelbase radius of 14 in. (35.6 cm). Failure to do so may result in IV pole tipping, leading to potential catheter site trauma and other patient injuries. Note: The wall-mount bracket is shipped attached to the IV pole mount. 1.
Mounting the Warming Unit on a Bedrail Note: The wall-mount bracket is shipped attached to the rail-mount. 1. Slide the V-shaped bracket on the back of the warming unit into the groove of the rail-mount bracket. 2. Tighten the setscrews (see Figure 2). 3. Hang the rail-mount on the bedrail. 4. Wrap the safety strap around the bedrail and connect the end to the fastener on the strap. The safety strap will prevent the warming unit from falling if the unit is accidentally dislodged from the bedrail.
Mounting the Warming Unit with a Rail-mount to the Wall 1. Using the wall-screw holes on the rail-to-wall bracket (see Figure 5) as a template, mark the position for the two wall anchors on the desired wall. The use of a level is recommended. 2. Install two suitable wall anchors at the marked positions. If using the provided self-drilling wall anchors, use a Phillips screwdriver to screw the anchors into position. If installing into industrialgrade plasterboard, predrilling may be required. 3.
Using the Temperature Controller Holder The controller holder helps to prevent cord clutter around the patient or accidental damage to the controller. 1. Press the holder onto the warming unit hose so it is within the patient’s reach (see Figure 6). 2. Slide the temperature controller into the holder. It should fit securely with the dial facing the patient (see Figure 7). Warming unit hose Temperature Controller holder Figure 6. Temperature Controller holder. Temperature Controller Figure 7.
Service Procedures Calibrating the Operating Temperatures Service Frequency • Calibrate the unit before placing it in service if the ambient temperature where the warming unit will be used is higher than 24°C (75°F). • Always recalibrate after performing service procedures. • Routinely calibrate every 6 months.
Method 1. Turn the warming unit “ON” and set the controller to its maximum (warmest) setting. 2. Press the clip buttons on the hose end and insert the hose end into the temperature test kit. 3. Allow the system to warm 10 minutes before starting the calibration. 4. Extend the hose straight to its full length. Remove the two screws that attach the case bottom (dark purple) to the warming unit and slide it down the hose. 5.
3. Extend the hose straight to its full length. Remove the two screws that attach the case bottom (dark purple) to the warming unit and slide it down the hose. 4. Allow the system to warm 10 minutes before starting the test. 5. With a small screwdriver, press the OT test button (see Figure 9). Continuously depress for the duration of the over-temperature test.
Replacing the Temperature Controller and/or Hose Tools/Equipment Needed • Medium Phillips screwdriver • Needle-nose pliers Method 1. Disconnect the warming unit from the power source. 2. Remove the two screws that attach the case bottom (dark purple) to the warming unit. 3. Slide the case bottom down the hose to expose the hose connection point. 4. Remove the two screws that fasten the hose to the warming unit: 1 on front and 1 on the back of the warming unit. 5.
8. Using either a replacement temperature controller assembly or a replacement hose, thread the controller wire through the hose hole. Hold the hose vertical and let the wire connector drop through to the hose end that attaches to the warming unit. 9. Reattach the hose to the warming unit by following steps 2 – 7 in reverse order. 10. Recalibrate the temperature and test the over-temperature circuit before returning the unit to service.
10. Route the new power cord through the enclosure hole and around the case as shown. Make sure the cord is held firmly by the notches in the case. Thread the crimped black and white wires through the case opening as shown in Figure 13. Figure 13. Power cord configuration in the warming unit case. Reassembling the Warming Unit 11. Replace the motor assembly in the case and screw into place (see step 9). Make sure the motor wires are not pinched between the motor and the case. 12.
Cleaning the Warming Unit Service Frequency As needed. Tools/Equipment Needed • Soft cloth • Mild cleaning solution or antimicrobial spray* • Dry soft cloth Warning: Do not immerse any part of the warming unit while cleaning it. Moisture will damage the components, and thermal injury may result. Precautions: • Do not use a dripping wet cloth to clean the warming unit. Moisture may seep into the electrical contacts and damage the components. • Do not use harsh solvents to clean the warming unit.
Technical Support and Customer Service U.S. Customer Service TEL: 800-733-7775 952-947-1200 FAX: 800-775-0002 952-947-1400 When You Call for Technical Support Please be ready to give the Technical Support Representative the serial number of your Bair Paws warming unit. The serial number is located on the back of the unit. Repair and Exchange Call Arizant Healthcare customer service if your Model 850 warming unit requires service.
Bair Paws Warming Unit Limited Warranty Two-Year Limited Warrantya, c Arizant Healthcare Inc. (“Company”) warrants to the original end-user (“User”)a that each Bair Paws warming unit (“Unit”)b will be free from defects in materials and workmanship under normal use and service for two yearsc from the date of shipment.
Specifications Physical Characteristics dimensions of warming unit 11 in. high x 2.5 in. deep x 7.7 in. wide 27.9 cm high x 6.4 cm deep x 19.6 cm wide dimensions of temperature controller 2.5 in. wide x 5.8 in. long 6.4 cm wide x 14.7 cm long weight of warming unit 6.3 lb; 2.9 kg. mounting options Wall mount bracket, IV pole clamp, and rail-mount bracket with safety strap. hose Detachable, flexible, and washable. 78 in. long x 1.5 in. wide; 198 cm long x 3.
Specifications - Continued Electrical Characteristics 20 blower motor Airflow: 7-9 cfm power consumption Peak: 290W leakage current Meets IEC 60601-1 and UL 60601-1 requirements heating element 285W Resistive power cord 15-foot, SJT, 3 cond., 10A device ratings 110-120 VAC, 60 Hz, 3.0 A fuses 3.0 A temperature controller cord 32” from hose collar, 4 cond., Max.
Maintenance Log Date Maintenance Action Performed Arizant Healthcare Inc.
Maintenance Log Date 22 Maintenance Action Performed Bair Paws® Model 850 Warming Unit Service Manual
Definition of Symbols The following symbols may appear on the product, on the exterior packaging, or in the product labeling. ON/STANDBY Temperature control Equipotentiality plug (ground) Fuse Attention, consult accompanying documents Dangerous voltage Type BF Equipment (patient applied) Voltage, alternating current (AC) Protective earth ground Ground Class II Equipment No free hosing Arizant Healthcare Inc.
Arizant Healthcare Inc., 10393 West 70th Street, Eden Prairie, MN 55344 USA TEL 800-733-7775 • 952-947-1200 FAX 800-775-0002 • 952-947-1400 www.bairpaws.com Bair Hugger, Bair Paws, Arizant, Arizant Healthcare, bright ideas that work, and the Bair Paws and Arizant logos are trademarks of Arizant Healthcare Inc., registered or pending in the U.S. Patent & Trademark Office and in other countries. U.S. Patent 7,226,454; 6,876,884; D485,338. Other patents pending. ©2008 Arizant Healthcare Inc.
