Model WT-5300
Contents
1. sse nennen nnns 20 SEI MI 22 Disassembly GUJE A T m 23 Filter Cover Assembly Replacement sse 23 Separating the Warming Unit Front and Rear Covers rsrrrrrrrnarrvrrrrrnnnrverrrrnnnnr 25 Front Cover Assembly Replacement sse 28 Universal PCB Replacement rrnnrnnnnnvnnnrnvnnnnnrnnnrnvvnnnnnrnnennrennnnrnnnrnnensnrrnnsennneeenn 37 Heater Assembly Replacement sse enne 45 Duct Adapter Assembly Replacement AA 61 Rear Cover Assembly Replacement rannnnnnnrnnnnnnvnnnnnrnnnnnnnnrnrrrnnnnvnnnrrrrennnnnneennn 65 EE uu aca adco gg de OX OR CR CRY Coe qo o Cac 83 Ordering Information EE 83 WarmTouch Replacement Parts and Accessories sess 85 Manual Availability 2 tiec rettet ett eene eterne ee ude 85 Packing f r Shipment aa EE EE EE ENEE EE EE EE ske nha EE EN 87 nigore Pleno Larver 87 WT 5300 Contents Returning the WT 5300 WE 87 General Instructions ssssssssssssssssseseeeeeee enne enses nnns nnns 87 Repacking in Original Carton sse 87 Repacking in a Different Carton urrnrvnnenrrvnnnvrnnenvvnnnnrrvnrnnvnennnrnnennvenrsrrnesnnnnernnn 89 recs propi EEE v EE 91 Warming System Specifications ssssssssssseseeeeeeenn 91 Transport and Shipping in Shipping Container essseeseeeeeeeeeeee ennenen 922. sse 99 V Tables Tables vi Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 WI 5300 Symbols 2 ttt erret erede re ballet 6 HEPA Filter Replacement Equipment Required 9 Hose Replacement Equipment Required ssssssse 12 Power Cord Replacement Equipment Required 14 Thermostat Protection Check Equipment Required 17 Output Temperature Check Equipment Required 20 Replacement Parts and Accessories sssssssssss 83 Model WT 5300 Blower Specifications 91 Model WT 5300 Cart Specifications sss 91 Safety Information Warnings WT 5300 P EE EE E E WARNING Possible explosion hazard Do not use the WarmTouch Model WT 5300 patient warming system in the presence of flammable anesthetic agents WARNING Possible electrical shock hazard To reduce the risk of electrical shock do not remove the back case Servicing is only to be done by qualified personnel WARNING Possible electric shock hazard Grounding reliability can be achieved only when the warming system is connected to an equivalent socket marked HOSPITAL ONLY or HOSPITAL GRADE WARNING Possible fire hazard Prevent the blanket material from coming into contact with a laser or an electrosurgical active electrode rapid combustion
3. Figure 74 Figure 75 Figure 76 Figure 77 Figure 78 Figure 79 Figure 80 Figure 81 Figure 82 Figure 83 Figure 84 Figure 85 Figure 86 Figure 87 Figure 88 Figure 89 Figure 90 Figure 91 Figure 92 Figure 93 Power Cord Retaining Bracket rrrnnnnnvnnnnrrrnnnnrnnnrnrrnnnnnrnnennnennn 45 Filter Removal e E skadede ed aat aent 46 Blower Assembly Screws sss 47 Cable Harness Cable Ties downs sss 47 Front Cover Assembly sssssssssseeeeneneenens 48 Cable Disconnect A 49 Duct Adapter Placement rrrrrnnnnnnnnrrnnnnonnnrrnnnnnnnnrrrnnrennnrrrnnsernnn 50 Blower Motor Removal esee 50 Blower Assembly Clips esee 51 Rubber Washer esses eene 51 Heater Assembly icti eia hue teet eee Eten 52 Heater Assembly Installation eeeeeeeeeee 53 Rubber Washer i cte tte EES 53 Blower Assembly Clips ssssne 54 Blower Assembly Screws sss 54 Duct Adapter Placement rreennnnrnnnvnnnnnnnnnvnnnnnrnnnennnnnennnenennneenne 55 Cable Connections ssssssssssssseeeeeenn enne 56 Front Cover Assembly ruunnrnnnnnvvnnnnrrnnnnnvnnnnrrnnannvnnnenrrnennrnnnnnnenn 56 Equipotential Ground Stud Wiring sssssssssss 57 Cable Harness Cable Ties downs sees 58 Cover Screw Locations mrnnrnnrrnnannvvnrnnr
4. Model WT 5300 Patient Warming System Service Manual To obtain information about a warranty if any contact Nellcor s Customer Services Department 1 800 635 5267 or your local Nellcor representative Contents 65 TTE PTT i gol JR E E EE ne a et EE ce ee dE E iii EE tee EEE EEE E Ho vi Safety WON 44 44 o dC de ek ee pop D dendo Ue dede ERREUR EE 1 lE 1 CAUTIONS IM 2 EE eege EE Eege 3 nue Ligr q c EE 3 Manual Availability 3 Background Information eesssseeeeeeee eene nnnm enn 3 Safety Fedlutes o iier ae tadter ete dese edant end aedi RDub aud d aud 4 Customized Warming Therapy sse 4 Automatic Temperature Stepdown sss 4 Automatic Over Temperature Shutdown 4 Warning A Be ITT 4 glisse 4 Wheel lo GRE 5 Scc Em 6 Description of the Warming System sse 7 iud p p p MeeMETUTP E 9 HEPA Filter Replacement ene ennemis 9 Hose Replacement Rm 11 Power Cord Replacement sess eene nnne 13 NNozzle Replacement sipsik n aA EE Ee euntis 15 Cleaning the Warming System sse nnns 15 WII ET cd qaod Garde ko AER REL GE Jede odo od anna 17 Thermostat Protection Check ssssssssssssseseeeeeeneeen nennen 17 Output Temperature Check
5. Warnilouch FFF neLLcor Patient Warming System Medium High 1 Warning Light Figure 12 Warning Light 13 When the Warning Light indicator lights stop the stopwatch See Figure 12 14 The stopwatch should indicate 5 minutes or less and the temperature monitor should not exceed 58 degrees C 15 Turn off the warming system and unplug it WARNING Possible patient injury Connection of the jumper wire disables shorts out the thermistor that is part of the temperature control system and is only for use by qualified personnel The jumper wire must be removed 16 Remove the jumper wire from the over temperature test port See Figure 10 WT 5300 19 Performance Verification 17 Close the over temperature test port and tighten the screw 18 Disconnect the warming system from the blanket 19 Allow the warming system to cool for 30 minutes before using the unit on a patient Output Temperature Check 20 This procedure measures the warming system output air temperature at the input to the blanket This procedure should be accomplished before returning the warming system into service Table 6 lists the equipment required for the thermostat protection check No calibration of the temperature control circuit is required or possible If the test temperatures are outside the allowable range factory service is required Contact Nellcor s Customer Services Department 1 800 635 5267 or your local Nellcor represe
6. Cable Connections sriain a aaa ai 33 Power Switch Clips uictor tn tco dtr tee aaaeaii Rena cda 33 Front cover Assembly Component Locations 34 Equipotential Ground ssssssseeseeeeene enn 35 Cable Harness Cable Ties downs rrrrrrrnnrvrrrrrrnnrrrrrrrnnnrrrrrrrnnnnnn 35 Cover Screw Locations 36 Power Cord Retaining Bracket rrrnnnnnvnnnnrrrnnnnrnnnrnvnnnnnnrnnennnnnnn 37 Universal PCB Connections essssssseeeeeneennens 38 Universal PCB Screws ssssssssssssee ener 39 Universal PCB Solid State Relay Assembly 39 Part of Universal PCB esses rnnt nnns 40 Universal PCB Alarm Jumper sssssssssessseessseesssessessriresrnesernesrnnsens 41 Universal PCB Lights sssssssseeeeee enne 41 Universal PCB Screws esses enenatis 42 Cable Connections arorrrnnnnnnannsnnnnnnnnnarnarvennnnnrensnnannnnnnnrnnnnnnnen 42 Cable Harness Cable Ties downs sse 43 Cover Screw Locations sssssssssssseeeenneennn nnns 44 iii Contents Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Figure 52 Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Figure 65 Figure 66 Figure 67 Figure 68 Figure 69 Figure 70 Figure 71 Figure 72 Figure 73
7. Output Temperature Check on page 20 e Safety Tests on page 22 WT 5300 81 Blank Page Spare Parts and Accessories Ordering Information WT 5300 The warming system and blankets may be ordered from Nellcor s Customer Services Department 1 800 635 5267 press 3 or your local Nellcor representative See WarmTouch Replacement Parts and Accessories below for the Internet reference to part numbers for replacement parts and accessories Table 7 Replacement Parts and Accessories Description Part Number Deg 03 EE 04 Cart 502 2900 3 Connector Assembly 168 1202SP Duct Adapter Assembly 168 0205SP 14 Filter Cover Assembly 168 0202SP12 8 Front Cover Assembly 168 0201SP2 2 2 Fuse 0 32 amps 169 5800 13 Heater Assembly 168 5203SP 15 Hepa Filter 502 2200 9 Hose 502 2000 1 I V Clamp and Foot 168 0203SP 4 I V Clamp Knob 168 2005SP 5 Nozzle 502 2100 13 Nozzle Adapter Augustine Medical 502 1600 BairHugger Models 200 250 and 500 Nozzle Strap with Alligator Clip 312 0070 12 Power Cord 502 2400 7 Rear Cover Assembly 168 0200SP12 6 6 Shipping Carton 346 5849 Strap Velcro 168 2023 10 Universal PCB 129 9011SP12 16 83 Spare Parts and Accessories Figure 103 Spare Parts Sheet 1 84 Spare Parts and Accessories Figure 104 Spare Parts Sheet 2 WarmTouch Replacement Parts and Accessories Warming system replacement parts and accessorie
8. and tighten the nut The nut should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 94 item 1 Figure 94 Capacitor Installation 39 Install the cable tie around the capacitor See Figure 94 item 2 40 Connect the thermistor cable to the universal PCB assembly See Figure 95 item 3 WT 5300 75 Disassembly Guide 76 41 42 43 Figure 95 Cable Connections Connect a cable tie down around the thermistor cable connector See Figure 95 item 3 Connect the key pad ground strap and the blower ground wire The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 95 item 2 Install the cable tie around the thermistor cable See Figure 95 item 1 Connect the four wires to the power switch See Figure 96 item 5 WT 5300 Disassembly Guide Figure 96 Front Cover Assembly 45 Install the tie down around the four power switch wires See Figure 96 item 4 46 Install the AC power connector into the front cover assembly The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 96 item 3 47 Connect the 9 pin connector to the universal PCB See Figure 96 item 1 48 Connect the ground wires to the equipotential ground stud Figure 96 item 2 The nuts should be torqued to 36 in Ibs to 44 in Ibs 91 cm kg to 112 cm kg See Figure 97 77 Disassembly Guide 1 Blower Housing Ground
9. could result WARNING Possible burn hazard Do not apply heat directly to open wounds All patient s wounds should be covered while using the warming system WARNING Possible patient burns Use caution and consider discontinuing use on patients during vascular surgery when an artery to an extremity is clamped Do not apply the warming system to ischemic limbs This could possibly cause the patient to be burned WARNING Possible patient burns Use caution and monitor closely if used on patients with severe peripheral vascular disease This could possibly cause the patient to be burned Safety Information gt PP gt Cautions oOo Oo OOF WARNING Possible patient burns Do not warm patients with the warming system hose only Thermal injury may result Always attach the hose to a WarmTouch blanket before providing warming therapy WARNING WarmTouch CareDrape and CareQuilt blankets are for single patient use only WARNING MRI scanning The warming system is not suitable for use during magnetic resonance imaging MRI scanning The warming system may affect the MRI image WARNING Continuously monitor the patient s temperature Reduce the air temperature or discontinue therapy when normothermia is reached Caution Federal U S A law restricts the use of the warming system to sale by or on the order of a physician Caution The warming system is fitted with an air filter however airborne contamination should b
10. decreased below the thermostat threshold temperature of 50 C If there is no malfunction in the warming system it should function normally If the warning light illuminates again the blower should be replaced and the faulty blower should be checked by qualified hospital personnel WT 5300 93 Principles of Operation Main Circuit Board See Figure 109 at the end of this section for the schematic diagram of the warming system main circuit board The main circuit board consists of DC Power Supply Circuit e Control Logic Circuit e Automatic Temperature Stepdown e Temperature Control Circuit e Liquid Crystal Display LCD Hour Meter There are three connectors on the main circuit board e Jl connects the main circuit board to the control panel e J2 connects the main circuit board to the AC power line circuit the heater and the blower e J3 connects the temperature control circuit of the main circuit board to YSI 400 series thermostat Over temperature test port DC Power Supply Circuit The 120 VAC enters the main circuit board through J2 pins 3 and 4 The power supply circuit consists of e F fuse located in the primary of the transformer e D7 bridge rectifier e VRI 12 VDC voltage regulator WARNING Dangerous voltages 120 VAC are exposed during this procedure Exercise extreme care not to come in contact with the 120 VAC Servicing is only to be done by qualified personnel In case of w
11. disconnect the power cord from the AC power source Caution Observe ESD electrostatic discharge precautions when working within the warming unit service technicians H Caution Repairs to the warming unit should only be accomplished by trained Follow local government ordinances and recycling instructions regarding the disposal of the warming unit and or parts Filter Cover Assembly Replacement The replacement Filter Cover Assembly is delivered assembled with e filter cover e bed hook e foot filter cover short e 4 8 32 truss HD screws The tools required for this procedure are Tool Parameter Use Phillips screw driver 2 Torque driver 8 in Ibs to 12 in bs 20 cm kg to 30 cm kg Use the following procedure to replace the filter cover assembly 1 Unplug the warming system power cord from the AC outlet 2 Place the warming system unit on a workbench with the bottom of the unit facing you 3 Unwind the power cord from the warming unit case See Figure 16 4 Disconnect the power cord connector from the warming unit WT 5300 23 Disassembly Guide 1 Power Cord Figure 16 Power Cord 5 Remove the 3 rear panel screws from the warming unit See Figure 17 Three Screws Figure 17 Rear Panel Screws 6 Slide the filter cover assembly from the warming unit Disassembly Guide 7 Place the new filter cover assembly on the warming unit and install the 3
12. fill the box completely with packing material 4 Sealthe carton with packing tape 5 Label the carton with the shipping address return address and RGA number if applicable 89 Blank Page Specifications Warming System Specifications No special transport or storage methods are required for the warming system Table 8 Model WT 5300 Blower Specifications Dimensions 38 cm x 41 cm x 28 cm 15 inches x 16 inches x 11 inches Weight 6 8 kg 15 lbs Power Requirements 120 VAC 50 60 Hz 10A Automatic Temperature Stepdown Boost to High Temperature Power Supply Cord After 45 minutes of continuous use 4 26 m 14 feet Thermal Protection Thermostat internal 47 C 50 C 117 F 122 F Ambient Blower Operating Temperature Range 18 C 30 C 64 F 86 F Protection Against Ingress of Fluids IEC 60601 1 sub clause 44 6 for class IPXO Protection Class 1 Protection Type B Table 9 Model WT 5300 Cart Specifications Weight Height with Handle Extended 4 6 kg 10 1 pounds 87 6 cm 34 5 inches Height with Handle Retracted Width 70 5 cm 27 8 inches 31 8 cm 12 5 inches Depth 38 6 cm 15 2 inches 91 Specifications Transport and Shipping in Shipping Container Temperature 40 C to 70 C 40 F to 158 F Altitude 390 m to 6 096 m 1 280 ft to 20 000 ft Barometric P
13. returning the warming unit into service e Thermostat Protection Check on page 17 e Output Temperature Check on page 20 e Safety Tests on page 22 Universal PCB Replacement The replacement universal PCB comes fully assembled except for the solid state relay assembly The tools required for this procedure are Tool Parameter Use Phillips screwdriver 2 Torque driver 4 in Ibs to 20 in Ibs 10 cm kg to 51 cm kg Wire cutter Cut cable tie downs and jumpers Use the following procedure to replace the universal PCB assembly WT 5300 37 Disassembly Guide 1 Separate the front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 2 Disconnect the 9 pin connector from the universal PCB See Figure 36 item 1 9 pin connector 3 Thermistor cable connector 2 Key pad and blower ground 4 Key pad ribbon cable connector Figure 36 Universal PCB Connections 3 Remove the thermistor cable connector cable tie down See Figure 36 item 3 4 Disconnect the thermistor cable connector See Figure 36 item 3 5 Disconnect the ribbon cable connector See Figure 36 item 4 6 Remove the four screws holding the universal PCB onto the front cover assembly See Figure 37 38 Disassembly Guide Figure 37 Universal PCB Screws 7 Carefully lift the universal PCB out of the front cover assembly 8 Remove the solid state relay assembly from the
14. screws The screws should be torqued to 8 in Ibs to 12 in Ibs 20 cm kg to 30 cm kg See Figure 17 8 Install the power cord on the warming unit See Figure 16 Separating the Warming Unit Front and Rear Covers This procedure requires Phillips screw driver 2 Socket wrench 10 mm Use the following procedure to separate the warming unit covers 1 Unplug the warming system power cord from the AC outlet 2 Place the warming system unit on a workbench with the bottom of the unit facing you 3 Unwind the power cord from the warming unit case See Figure 18 1 1 Power Cord Figure 18 Power Cord 4 Loosen the power cord retaining bracket Figure 19 item 2 by loosening the retainer bracket screws item 1 WT 5300 25 Disassembly Guide Retaining bracket screws 3 Power cord connector 2 Retaining bracket Figure 19 Power cord Removal 5 Disconnect the power cord connector from the warming unit See Figure 19 item 3 6 Remove the seven screws holding the front and rear covers together See Figure 20 26 Disassembly Guide Figure 20 Cover Screw Locations between the covers are short and may be damaged if too much pressure is applied lt gt Caution Separate the front and rear covers very carefully The wires connected to them 7 Carefully separate the front and back covers See Figure 21 Figure 21 Separated Covers WT 5300 27 Disas
15. 2 Blower Motor Ground 3 AC Power Connector Ground Figure 97 Equipotential Ground Stud Wiring 49 Install the cable harness cable tie down See Figure 98 items 1 and 2 Figure 98 Cable Harness Cable Ties downs Caution When placing the front and rear cover assemblies together ensure that the wires are not pinched between the covers 50 Carefully place the front and rear cover assemblies together 51 Install the seven screws into the rear cover assembly to attach it to the front cover assembly The screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 99 78 Disassembly Guide Figure 99 Cover Screw Locations 52 Place the filter assembly into the rear cover assembly See Figure 100 item 1 Figure 100 Filter Installation 53 Install the filter cover assembly on the rear cover assembly The screws should be torqued to 8 in Ibs to 12 in Ibs 20 cm kg to 30 cm kg See Figure 101 WT 5300 79 Disassembly Guide Figure 101 Filter Cover Installation 54 Attach the AC power cord to the warming unit 55 Install the power cord retaining bracket Figure 102 item 2 by tightening the bracket screws item 1 Figure 102 Power Cord Retaining Bracket 56 Perform the following checks test to verify proper operation of the warming unit prior to returning the warming unit into service e Thermostat Protection Check on page 17 80 Disassembly Guide e
16. 30 0 C to 34 0 C 10 Select the medium temperature setting 11 Allow the temperature to stabilize 8 to 10 minutes The temperature monitor should indicate 36 0 C to 40 0 C 12 Select the high temperature setting 13 Allow the temperature to stabilize 8 to 10 minutes The temperature monitor should indicate 41 0 C to 45 0 C WT 5300 21 Performance Verification Safety Tests 22 14 Select the Boost temperature setting 15 Allow the temperature to stabilize 8 to 10 minutes The temperature monitor should indicate 44 0 C to 46 0 C 16 Turn off the warming system 17 Disconnect the warming system nozzle from the blanket 18 Remove the temperature probe from the warming system nozzle The warming system is provided with a ground stud to allow safety testing without opening the case 1 Ground Stud Figure 15 Ground Stud The warming system meets the standards of CSA C22 2 No 125 Risk Class 2 and UL 544 Applicable tests for these standards are listed below Technicians should be familiar with the standards applicable to their institution and country Test equipment and its application must comply with the applicable standard e Ground Integrity See page 92 for test values e Earth Leakage Current See page 92 for test values e Enclosure Leakage Current See page 92 for test values Disassembly Guide Warning Before attempting to open or disassemble the warming unit
17. Ground Integrity Test ssssssssssssssseseeeeeee entere 92 Earth Leakage Current Test sssssssssssseeeenneeeennns 92 Enclosure Leakage Current Test 92 SE RER EE 93 Gonttol Pane RE 93 ETITEeTTe UBER 94 DC Power Supply Circuit rrrrrnannvnnnnrrvnnnnnvnnrnrrnnnnnvnnnenrenennrnnsennrennnnnnnennnee 94 Control Logic Circuit cR 95 Automatic Temperature Stepdown ssssssseeeen 95 Temperature Control Circuit essen 96 LGD Hour Meter tonic reden erp aeu d rs etie auk see 96 Lee 96 slg eden 97 pilcngec e 97 Thermostat Protection enit trece dne LESSER ENEE 97 Over Temperature Test Port nnnnrrnnannvnnnonrrnnnnnvnnnnrrnnannrnnnnnnrennnrnnnnnnrensnnrnnnennnee 97 si tet eho ta Gb hh a a oh ed do m 101 Figures WT 5300 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Contents Cart W
18. Harness Cable Ties downs 7 Disconnect the 9 pin connector from the universal PCB See Figure 50 m item 1 46 Disassembly Guide 9 pin connector 4 Cable tie down 2 Equipotential ground terminal 5 Power switch 3 AC power connector Figure 50 Front Cover Assembly 8 Disconnect the equipotential ground stud wires See Figure 50 item 2 9 Remove the AC power connector from the front cover assembly See Figure 50 item 3 10 Remove the cable tie down from the front cover assembly See Figure 50 item 4 Note Write down the color code of each wire connected to the power switch This will ensure that the wires will be reconnected properly 11 Disconnect the four wires from the power switch See Figure 50 item 5 12 Cut the cable tie See Figure 51 item 1 WT 5300 47 Disassembly Guide Figure 51 Cable Disconnect 13 Remove the ground screw See Figure 51 item 2 14 Cut the cable tie down from the thermistor cable connector See Figure 51 item 3 15 Disconnect the thermistor cable connector See Figure 51 item 3 16 Place the front cover assembly in a safe place connection to the duct adaptor is fragile and will become disconnected if too much m Caution Care must be taken when moving the duct adapter The thermistor pressure is applied to it 17 Carefully lift the duct adapter and lay the duct adapter on the rear cover handle See Figure 52 48 Disasse
19. N AMB BN C14 0 1mF 50v 3 gt MC14049 13 KR O MC14049 MC14044 MC14082 MC14049 R13 150K 1 U6 MC14521 MC14049 VOC A1 LCD TIMER HOUR METER NOTES 1 ALL RESISTORS ARE IN OHMS UNLESS OTHERWISE SPECIFIED 2 ASSOCIATE ONE DECOUPLING CAPACITOR PER EACH I C 3 REFER TO TABLE FOR VCC AND GND CONNECTIONS TO I C S VCC VCC RP2B 1K vec vec vec RP2C RP2D RP1F 1K 1K 10K D3 D4 GRN GRN 38 C BN 44 C Ka R5 1 62K 1 A R1 d 10K 5 0 1 4 MC14066 R16 400K vec 8 LM393 Om a VR1 TI 780 12C VCC C7 R2 10K 0 1 5 7 5 LM393 VOC 0 1mF VOC Principles of Operation TEST PORT vec J3 gt R4 v 10K 0 1 RPIG J3 10K map 4 7K 1 THERMOSTAT THERMOSTA 1 4 1 SM zl vec vcc vec O THERMOSTA P HEATER H 1KW l 3 2 A B 2 O O H RP2E 1 1K SPKR1 240V 50A nd 6 RA2450 YEL P M 2 R12 100K 1W CIRCUIT BREAKER 4 7K e BV o l BL Va 2N3904 56 R19 mg NGC JE RTE C13 0 33mF BL on FILTE 100 120VAC 10A 100K F2 0 250A 125V F BR GRN YE BRN O O VIO PREW 1006 Fi 0 032A 250V T 2 B BLOWE GRN YE 2mF BRN SCHEMATIC SHOWN REFLECTS 115VAC CONFIGURATION FOR MODEL 5300 Figure 109 5300 Schematic Diagram 99 Index A AC power section 96 Accessories 83 Accessories web address 85 Automatic shutdown 4 B Blower 97 Burn hazard 1 C Cleaning 15 Control logic ci
20. Nose Pliers Bending hose wire 1 Unplug the warming system 2 Place the warming system on a workbench with the back of the unit facing you 3 Remove the 7 screws holding the case together See Figure 7 Seven Screws Figure 7 Back of Case 4 Open the top of the case assembly far enough to access the hose and the hose retaining wire See Figure 8 9 Routine Maintenance 1 Hose Retaining Wire Figure 8 Hose Retaining Wire Straighten the hose retaining wire Remove the hose from the warming system Install the new hose Ensure that the hose retaining wire is threaded through the hose retaining wire hole Bend the hose retaining wire to ensure that the hose does not detach from the warming system Close the warming system case 10 Install the 7 screws to hold the case together See Figure 7 Power Cord Replacement WT 5300 e The warming system is equipped with a detachable power cord If the power cord is damaged contact Nellcor s Customer Services Department 1 800 635 5267 or your local Nellcor representative Caution Only qualified hospital personnel should replace the power cord 13 Routine Maintenance Table 4 Power Cord Replacement Equipment Required Equipment Description Use Allen Wrench 3 32 inch loosening retaining bracket 1 Unplug the warming system power cord from the AC outlet 2 Place the warming system unit on a workbench with the bottom of th
21. arming system unit failure no lights the presence of 12 VDC should be verified This can be done by opening the warming system unit See Figure 107 Connect a voltmeter to the test points 1 and 4 of J4 test point J4 4 is ground and test point J4 1 is 12 VDO J4 is located on the circuit board assembly 94 Principles of Operation Seven Case Screws Figure 107 Remove Screws to Open Case Control Logic Circuit The control logic circuit for temperature settings consists of e Ul and U2 logic gates e Ud inverter e U3 dual R S latch Automatic Temperature Stepdown The temperature setting automatically lowers from boost to high after 45 minutes of continuous use See Figure 109 This circuit consists of e U6 e Two gates of U4 WT 5300 95 Principles of Operation Temperature Control Circuit The temperature control circuit consists of e U7 comparator e KI relay controls the heater e U8 optical isolator which senses the status of the thermostats See Output Temperature Check procedure on page 20 LCD Hour Meter The warming system unit is equipped with an hour meter that is located on the front panel of the unit The meter displays the number of hours the unit has been in use See Figure 108 i Ko J 1 Operating Hours Meter Figure 108 Hour Meter AC Power Section The warming system unit operates from a 120 VAC power source Input power selection consists
22. bly See Figure 23 item 3 6 Remove the cable tie down from the front cover assembly See Figure 23 item 4 Caution Write down the color code of each wire connected to the power switch This will ensure that the wires will be reconnected properly 7 Disconnect the four wires from the power switch See Figure 23 item 5 8 Depress the four clips on the power switch and push the power switch through the front cover assembly See Figure 24 Figure 24 Power Switch Removal 9 Cutthe cable tie See Figure 25 item 1 Figure 25 Cable Disconnect 30 Disassembly Guide 10 Remove the ground screw See Figure 25 item 2 11 Cut the cable tie down holding the thermistor cable to the connector See Figure 25 item 3 12 Disconnect the thermistor cable connector See Figure 25 item 3 13 Disconnect the ribbon cable connector See Figure 25 item 4 14 Remove the four screws holding the universal PCB onto the front cover assembly See Figure 26 Figure 26 Universal PCB Screws 15 Carefully lift the universal PCB out of the front cover assembly 16 Discard the old front cover assembly m Caution Carefully align the five lights on the universal PCB with the control panel key pad push buttons Failure to do so could damage the key pad or the universal PCB lights See Figure 27 WT 5300 31 Disassembly Guide Figure 27 Universal PCB Lights 17 Carefully place the universal PCB into the replacement fro
23. e considered when using the warming system Caution If the warming system is mounted on the intravenous IV pole it should be installed with the top of the unit s handle less than 76 cm 30 inches above the floor to prevent the IV pole from tipping over Caution If a malfunction occurs in the warming system discontinue use Notify your sales service center of the malfunction Service is only to be done by qualified personnel Caution The Model WT 5300 should not be operated in the presence of electromagnetic fields that are greater than 3 Volts meter This could cause shutdown of the Model WT 5300 by the fail safe function within the equipment Caution Ensure that the patient is dry or the warming system may be ineffective Introduction Intended Use The WarmTouch Model WT 5300 Patient warming system warming unit and blanket is intended for prevention and treatment of hypothermia For example with the surgical patient the patient in the preoperative holding area the pregnant woman who shivers during epidural anesthesia due to hypothermia or any patient who is uncomfortable anywhere in the cold critical care environment Manual Availability The most recent revision of this manual is available on the Internet at http www mallinckrodt com respiratory resp Serv Supp ProductManuals html Background Information WT 5300 There are numerous ways of warming your patient from cotton blankets to water mattress
24. e returned goods authorization RGA number Return the WT 5300 by any method that provides proof of delivery Repacking in Original Carton If available use the original carton and packing materials See Figure 105 Pack the monitor as follows 1 Place the WT 5300 in the original packaging WT 5300 87 Packing for Shipment 88 Place cut outs over cart handle and blower handle 2 Route nozzle and hose under cart handle and place nozzle behind insert in basket 3 Use ty wrap to hold insert to cart while packing 4 Mount blower onto mounting pins on cart Cart pins fit into lower blower case screw holes Notes Cart handle must be in the fully down position 2 Tape or staples may be used on the inserts to ensure the insert retains it s form 3 Ensure nozzle clip is placed away from basket and insert Place as shown Figure 105 Packing Packing for Shipment 2 Sealcarton with packing tape 3 Label carton with shipping address return address and RGA number if applicable Repacking in a Different Carton WT 5300 If the original carton is not available use the following procedure to pack the WT 5300 1 Locate a corrugated cardboard shipping carton with a bursting strength of at least 200 pounds per square inch psi 2 Fillthe bottom of the carton with at least 2 inches of packing material 3 Place the WT 5300 on the layer of packing material and
25. e unit facing you 3 Unwind the power cord from the warming unit case Note The power cord retaining bracket screws have retaining nuts Do not unscrew the screws enough to break the retaining nuts 4 Loosen the power cord retaining bracket screws enough to pull the bracket away from the power cord connector See Figure 9 Power Cord Retaining Bracket Screws 2 Power Cord Retaining Bracket 3 Power Cord Connector Figure 9 Power Cord Routing 5 Disconnect the power cord connector from the warming unit 6 Remove the power cord from the power cord routing bracket Routine Maintenance 7 Connect the new power cord connector to the warming unit 8 Insert the power cord into the power cord routing bracket It may be necessary to use a screwdriver to separate the power cord routing bracket 9 Tighten the power cord retaining bracket screws Nozzle Replacement If the nozzle is damaged contact Nellcor s Customer Services Department 1 800 635 5267 or your Nellcor representative The nozzle is held in place by four clips on the hose assembly Pull and twist the nozzle to remove it To replace the nozzle push the new nozzle over the four clips on the hose assembly Cleaning the Warming System WT 5300 e Caution Do not spray pour or spill any liquid on the warming system its accessories connectors switches or openings in the case For surface cleaning and disinfecting follow
26. e warming system on the new filter label and unit label Unplug the warming system Lay the warming system on the front cover Unwrap the power cord from the rear of the warming system Remove the three screws from the rear of the warming system See Figure 5 Three Panel Screws Figure 5 Rear Panel Screws Routine Maintenance 6 Remove the WarmTouch Model WT 5300 Patient Warming System back panel HEPA Filter 2 Power Cord Strain Relief Figure 6 HEPA Filter 7 Remove the filter See Figure 6 8 Place the new filter into the warming system 9 Ensure that the power cord s female connector is fully seated into the warming system case 10 Place the warming system back panel on the case and insert the power cable into the power cable slot on the bottom of the case 11 Align the back case with the three screw holes in the filter and install the three screws holding the back case to the unit Hose Replacement WT 5300 If the warming system hose is damaged contact Nellcor s Customer Services Department 1 800 635 5267 or your local Nellcor representative to obtain a replacement hose The hose for the warming system is made of plastic reinforced with wire Caution Only qualified hospital personnel should replace the hose 11 Routine Maintenance Table 3 Hose Replacement Equipment Required Equipment Description Use Phillips Screwdriver 2 removing screws Needle
27. ector See Figure 43 item 4 WT 5300 41 Disassembly Guide Figure 43 Cable Connections 14 Connect the thermistor cable connector See Figure 43 item 3 15 Attach a cable tie down around the thermistor cable connector and the universal PCB connector See Figure 43 item 3 16 Connect the 9 pin connector to the universal PCB See Figure 43 item 1 17 Install the cable harness cable tie down See Figure 44 item 1 Figure 44 Cable Harness Cable Ties downs Caution Ensure that the cable harness between the two cover halves is not pinched by the covers when joining the front and rear cover assemblies 42 Disassembly Guide 18 Carefully align the front and rear cover assemblies and install the seven screws The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 45 Figure 45 Cover Screw Locations 19 Attach the AC power cord to the warming unit 20 Install the power cord retaining bracket Figure 46 item 2 by tightening the bracket screws item 1 WT 5300 43 Disassembly Guide Figure 46 Power Cord Retaining Bracket 21 Perform the following checks test to verify proper operation of the warming unit prior to returning the warming unit into service Thermostat Protection Check on page 17 e Output Temperature Check on page 20 e Safety Tests on page 22 Heater Assembly Replacement The replacement heater assembly comes assembled with e heate
28. el 2 Bed Hook Bracket 5 Nozzle Strap with Clip 3 Filter Cover 6 Instruction Label Figure 3 Model WT 5300 Back View Routine Maintenance instructions regarding disposal or recycling of filter and device components or end Caution The institution should follow local governing ordinances and recycling of life of the product HEPA Filter Replacement The warming system filter should be replaced after every 2 000 hours of use Contact Nellcor s Customer Service Department 1 800 635 5267 or your local Nellcor representative to purchase new filters The correct filter will be sent to your hospital for installation H Caution Only qualified hospital personnel should replace the air filter The warming system total operating hours and the date of filter installation should be recorded on the new filter label and on the unit label when the filter is installed See Figure 4 for the location of the Hour Meter on the warming system Note The warming system must be operating to read the total operating hours meter Table 2 HEPA Filter Replacement Equipment Required Equipment Description Use Phillips Screwdriver 2 removing screws lt 1 S er LA Operating Hours Meter Figure 4 Operating Hours Meter WT 5300 9 Routine Maintenance removed WARNING Do not operate the warming system with the back cover 1 Write the date and total hours of operation of th
29. es Research has shown that low temperatures surrounding the patient are a major factor contributing to hypothermia The warming system covers the patient with warm air and actively transfers heat across the skin The result is to achieve normal thermia In creating this warm customized pocket of air around the hypothermic patient it is important to note that stagnant air even if it is warm does not work as an effective heat transfer medium Stagnant air acts as an insulator preventing the boundary layer of molecules next to the skin surface from transferring heat Forced air warming causes warmed air molecules to flow over cooler skin surface It is this active flow of warmed molecules that acts as a heat transfer medium With the warming system air is warmed and delivered into a lightweight blanket CareQuilt or CareDrape Blanket that rests over or under the patient The CareQuilt and CareDrape blankets have many small perforations on the underside that allow air to exit the blanket and surround the patient 1 Morris RH Wilkey BR The Effects of the Ambient Temperature on Patient Temperature During Surgery Not Involving Body Cavities Anesthesiology 32 102 107 1970 2 Morris RH Influence of Ambient Temperature on Patient Temperature During Intra abdominal Surgery Annals of Surgery 173 230 233 1971 Introduction Safety Features The Warming System is designed to give healthcare professionals more control over the patien
30. ess Cable Ties downs Caution When placing the front and rear cover assemblies together ensure that the wires are not pinched between the covers 43 Carefully place the front and rear cover assemblies together 44 Install the seven screws into the rear cover assembly to attach it to the front cover assembly The screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 66 57 Disassembly Guide Figure 66 Cover Screw Locations 45 Place the filter assembly into the rear cover assembly See Figure 67 item 1 Figure 67 Filter Installation 46 Install the filter cover assembly on the rear cover assembly The screws should be torqued to 8 in Ibs to 12 in Ibs 20 cm kg to 30 cm kg See Figure 68 58 Disassembly Guide Figure 68 Filter Cover Installation 47 Attach The AC power cord to the warming unit 48 Install the power cord retaining bracket Figure 69 item 2 by tightening the bracket screws item 1 Figure 69 Power Cord Retaining Bracket 49 Perform the following checks test to verify proper operation of the warming unit prior to returning the warming unit into service e Thermostat Protection Check on page 17 WT 5300 59 Disassembly Guide e Output Temperature Check on page 20 e Safety Tests on page 22 Duct Adapter Assembly Replacement The replacement duct adapter assembly come assembled with e duct adapter e screen The tools required f
31. ete patient warming system Lower Body Blanket 1 Lay the temperature probe beside the warming system nozzle at the end of the hose and bend approximately 4 centimeters 1 5 inches of the temperature probe into the nozzle opening 2 Position the tip of the temperature probe so that it is centered in the middle of the nozzle opening and is inside the nozzle approximately 2 5 to 5 centimeters 1 to 2 inches 3 Tape the probe in place 4 Connect the probe to the temperature monitor 5 Connect the nozzle to the blanket 6 Unplug the warming system 17 Performance Verification 7 Loosen the over temperature test port screw See Figure 10 8 Slide the over temperature test port cover to the side Over Temperature Test Port Figure 10 Over Temperature Test Port shorts out the thermistor that is part of the temperature control system and T WARNING Possible Patient Injury Connecting the jumper wire disables is only for use by qualified personnel 9 Connect the jumper wire across the two terminals in the over temperature test port 10 Plug in the warming system and turn it on 11 Select the Boost temperature setting See Figure 11 Performance Verification Wami louch lt lt neLLcor Patient Warming System Medium High Boost Temperature Setting Figure 11 WarmTouch Boost Temperature Setting 12 When the monitored temperature exceeds 46 degrees C start the stopwatch
32. he heater thermostat Figure 57 item 3 is at the top of the heater when the heater is installed in the rear cover assembly 27 Slide the new heater into the rear cover assembly See Figure 57 item 1 51 Disassembly Guide Figure 57 Heater Assembly Installation 28 Orient the heater with the heater thermostat item 3 is nearest the rear cover assembly handle item 2 See Figure 57 29 Route heater black and red wires through the cut outs in the rear cover assembly See Figure 57 item 4 30 Place the rubber washer into the rear cover assembly with the wire indentations over the heater wires See Figure 58 item 1 Figure 58 Rubber Washer 31 Place the blower assembly into the rear cover assembly and ensure that the four blower assembly clips attach over the edges of the blower assembly See Figure 59 52 Disassembly Guide Figure 59 Blower Assembly Clips 32 Install the four blower assembly mounting screws into the rear cover assembly The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 60 Figure 60 Blower Assembly Screws WT 5300 53 Disassembly Guide connection to the duct adaptor is fragile and will become disconnected if too much H Caution Care must be taken when moving the duct adapter The thermistor pressure is applied to it 33 Carefully insert the duct adapter into the blower assembly See Figure 61 Duct adapter 2 Thermi
33. heel LOCK itt i tete bec anadi 5 Model WT 5300 Front View r rannnnnnnnnnnnnnnnnnnnnnnnnnnenrnrnsnrnrnrnrnnnnnnn 7 Model WT 5300 Back View sess 8 Operating Hours Meter murnrrnnnnnrnnannvvnnnnrrnnrnnrnnnnrrnnnrnnennrnnrnnsnnnennr 9 Hear Panel Screws 2s onte krana 10 HEPA gu m T ees 11 Back Of CaSO Lunn eee 12 Hose Retaining Wire eese 13 Power Cord Routing sse 14 Over Temperature Test Port mnrrnrnnrrnannnvnnnvrrnnnnnrnnrnrrennnnrnnernnne 18 WarmTouch Boost Temperature Setting sssse 19 Warming HONE eresse nra 19 Output Temperature Setup ssssssseeeeeee 21 Temperature Selection sssssssseeeeee 21 Ground Stud aar 22 Pwer GOrd EE 24 Rear Panel SGreWS eiii bes Ponit e geed 24 Power GOI C T 25 Power cord Removal eese nennen 26 Cover Screw Locations sssssssssssseeeenneeenn nnns 27 Separated Covers ssssssssssseseeeeee nennen 27 Cable Harness Cable Ties downs sss 29 Front Cover Assembly ssssssssssseeeeeeneneenes 29 Power Switch Removal esses eene 30 Gable Disconnect itt eere tene eed bie ue 30 Universal PCB Screws sss eene 31 Universal PCB Lights sssssssseeeeenennenns 32 Universal PCB Screws sessi nennt nnns 32
34. igure 79 item 1 5 2 4 9 pin connector 4 Cable tie down 2 Equipotential ground terminal 5 Power switch 3 AC power connector Figure 79 Front Cover Assembly 11 Disconnect the equipotential ground stud wires See Figure 79 item 2 WT 5300 67 Disassembly Guide 68 12 Remove the AC power connector from the front cover assembly See Figure 79 item 3 13 Remove the cable tie down from the front cover assembly See Figure 79 item 4 Note Write down the color code of each wire connected to the power switch This will ensure that the wires will be reconnected properly 14 Disconnect the four wires from the power switch See Figure 79 item 5 15 Cut the cable tie See Figure 80 item 1 Figure 80 Cable Disconnect 16 Remove the ground screw See Figure 80 item 2 17 Cut the cable tie from the thermistor cable connector See Figure 80 item 3 18 Disconnect the thermistor cable connector See Figure 80 item 3 19 Place the front cover assembly in a safe place Caution The thermistor is very delicate and easily damaged Use extreme care when handling removing or replacing the thermistor 20 Remove the thermistor cable terminal board See Figure 81 item 2 Disassembly Guide Figure 81 Thermistor Cable Removal 2 Cut the cable tie on the thermistor cable See Figure 81 item 1 Note The blower assembly is held onto the rear cover assembly by four screws a
35. ipped with two wheel locks The wheel locks prevent the cart from moving while in use The wheel locks must be released when moving the cart Press the wheel lock arm down to lock the wheel Lift the wheel lock arm to release the wheel lock See Figure 1 Figure 1 Cart Wheel Lock Introduction Symbols The symbols identified in Table 1 are the symbols used on the WT 5300 and all WT 5300 labeling Table 1 WT 5300 Symbols Attention symbol consult accompanying documentation Temperature Control Low 32 C Temperature Control Medium 38 C Temperature Control High 43 C Temperature Control Boost 45 C for 45 minutes I Power On O Power Off Protection Class I Protection Type BF Introduction Description of the Warming System The WarmTouch Model WT 5300 Patient warming system Figure 2 and Figure 3 CareQuilt and CareDrape blankets are intended for prevention and treatment of hypothermia For example with the surgical patient the patient in the preoperative holding area the pregnant woman who shivers during epidural anesthesia due to hypothermia or any patient who is uncomfortable cold in the critical care environment Hose 4 Power Cord 2 Main Power Switch 5 Hour Meter 3 Nozzle 6 Control Panel Figure 2 Model WT 5300 Front View WT 5300 7 Introduction 6 5 4 Over Temperature Test Port 4 Warning Lab
36. item 4 26 Install the AC power connector into the front cover assembly The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 31 item 3 27 Install Equipotential Ground Figure 31 item 2 and the ground wires to the equipotential ground The nuts should be torqued to 36 in Ibs to 44 in Ibs 91 cm kg to 112 cm kg See Figure 32 34 Disassembly Guide 1 Blower Housing Ground 2 Blower Motor Ground 3 AC Power Connector Ground Figure 32 Equipotential Ground 28 Connect the 9 pin connector to the universal PCB See Figure 31 item 1 29 Install the cable harness cable tie down See Figure 33 item 1 Figure 33 Cable Harness Cable Ties downs Caution Ensure that the cable harness between the two cover halves is not pinched by the covers when joining the front and rear cover assemblies 30 Carefully align the front and rear cover assemblies and install the seven screws The screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 34 WT 5300 35 Disassembly Guide 36 Figure 34 Cover Screw Locations 3 Attach the AC power cord to the warming unit 32 Install the power cord retaining bracket Figure 35 item 2 by tightening the bracket screws item 1 Disassembly Guide Figure 35 Power Cord Retaining Bracket 33 Perform the following checks test to verify proper operation of the warming unit prior to
37. leakage current 92 enclosure leakage current 92 ground integrity 92 Surface cleaning 15 102 T Temperature control circuit 96 Thermostat protection 97 Thermostat protection check 17 U Universal PCB replacement 37 W Warning light 4 Warnings 1 Q NELLCOR Tyco Healthcare Group LP Nellcor Puritan Bennett Division 4280 Hacienda Drive Pleasanton CA 94588 USA Toll Free 1 800 635 5267 O 2004 Nellcor Puritan Bennett Inc All rights reserved Manufactured in the U S A P N 067718B 0204 tyco Healthcare
38. llation rrnrrnnvrrrnnnnnnnvrnnnnnnnnnrnnnnnnnnnnnn 74 Rubber Waslier enti tiet tto st fedt decet nuts 74 Blower Installation esee 75 Blower EE 75 Thermistor Cable Installation sese 76 WT 5300 Figure 94 Figure 95 Figure 96 Figure 97 Figure 98 Figure 99 Figure 100 Figure 101 Figure 102 Figure 103 Figure 104 Figure 105 Figure 106 Figure 107 Figure 108 Figure 109 Contents Capacitor Installation ssrrrrnrrrrrrrrrrrrrsrnrrnnrrrrrnnrnrrrrrrnnrnrrrrrrnnnne 76 Cable ConneoliOns dd oic nerit rennen etna da renuit 77 Front Cover Assembly ssssssssssseeeeenen een 78 Equipotential Ground Stud Wiring sssesesssss 79 Cable Harness Cable Ties downs sse 79 Cover Screw Locations rrrrrrrennnrvrrrrrnnnrrrrrrrnnnvnrrrrrnnnrnnesrrnnnnnnn 80 Filter Installation 80 Filter Cover Installation errnnnrrrnrrrnnvrrnnrrnnnrnrnnrrnnrnnnnrrrssnvnnneenn 81 Power Cord Retaining Bracket sse 81 Spare Parts Sheet 1 rice eor tendo tae d UR enn agen eo DERE 84 Spare Parts Sheet 2 cient reae id ua nnda Rn pnus 85 PACKING isticaied denescddeinan dadaont ececaesdaabaraed dpaatichnns ndn iaiia redata edanda 88 Control Panel e 93 Remove Screws to Open Case sse 95 Ho r dE WEE 96 5300 Schematic Diagram
39. ly Guide 7 Carefully insert the thermistor into the duct adapter assembly See Figure 71 item 1 8 The thermistor item 1 should be positioned as shown in Figure 74 Figure 74 Thermistor Position Within Duct Adapter 9 Apply a small amount of silicone RTV to the thermistor rivet cap and the adapter housing See Figure 70 Caution When placing the front and rear cover assemblies together ensure that the wires are not pinched between the covers 10 Carefully align the front and rear cover assemblies and install the seven screws The screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 75 63 Disassembly Guide Figure 75 Cover Screw Locations 11 Attach the AC power cord to the warming unit 12 Perform the following checks test to verify proper operation of the warming unit prior to returning the warming unit into service e Thermostat Protection Check on page 17 e Output Temperature Check on page 20 e Safety Tests on page 22 Rear Cover Assembly Replacement The replacement rear cover assembly comes assembled with e rear enclosure e cable tie mount e 1 cable tie e 3 lag bolts 3 inches 64 e test cover e screw Disassembly Guide e 1 heater cone insert e heater screen e attention label e model serial number label The tools required for this procedure are Tool Parameter Use Phillips scre
40. mbly Guide Duct adapter 2 Thermistor connection Figure 52 Duct Adapter Placement 18 Rotate the blower motor assembly clockwise to disengage two of the four clips See Figure 53 and Figure 54 Figure 53 Blower Motor Removal WT 5300 49 Disassembly Guide Figure 54 Blower Assembly Clips 19 Slide the blower motor assembly away from the engaged clips to disengage the last two clips 20 Lay the blower motor assembly beside the rear cover assembly Do not over stress the wires 21 Remove the rubber washer from the rear cover assembly See Figure 55 item 1 Figure 55 Rubber Washer Caution Do not touch the heater coil Oil from your fingers may cause damage to the heater coil when it is in use 50 WT 5300 Disassembly Guide 22 Lift the heater assembly out of the rear cover assembly See Figure 56 item 1 Figure 56 Heater Assembly Note For the next four steps use an AMP 305183 contact removal tool or equivalent 23 Remove the heater black wire and pin from pin 2 of the 9 pin connector See Figure 56 item 3 24 Remove the heater red wire may be white in some assemblies and pin from pin 8 of the 9 pin connector See Figure 56 item 2 25 Install the new heater red wire and pin into pin 8 of the 9 pin connector See Figure 56 item 2 26 Install the new heater black wire and pin into pin 2 of the 9 pin connector See Figure 56 item 3 Note Ensure that t
41. nd four clips It is easier for two people to release the clips and lift the blower assembly from the rear cover assembly 22 Remove the four screws holding the blower assembly to the rear cover assembly See Figure 82 Figure 82 Blower Assembly Screws WT 5300 69 Disassembly Guide 23 Loosen the nut holding the capacitor to the rear cover assembly See Figure 83 item 1 Figure 83 Blower Capacitor 24 Lift the capacitor free of the rear cover assembly 25 Rotate the blower motor assembly clockwise to disengage two of the four clips See Figure 84 and Figure 85 Figure 84 Blower Motor Removal 70 Disassembly Guide Figure 85 Blower Assembly Clips 26 Slide the blower motor assembly away from the engaged clips to disengage the last two clips 27 Remove the rubber washer from the rear cover assembly See Figure 86 item 1 Figure 86 Rubber Washer Caution Do not touch the heater coil Oil from your fingers may cause damage to the heater coil when it is in use 28 Lift the heater assembly out of the rear cover assembly See Figure 87 item 1 WT 5300 71 Disassembly Guide Figure 87 Heater Assembly 29 Discard the old rear cover assembly 30 Install the three warming mounting brackets on the replacement rear cover assembly See Figure 88 Figure 88 Warming Unit Mounting Brackets Note Ensure that the heater temperature sensor Figure 89 item 1 is at the to
42. nnnnnnonnnnrrnnnnnrennnnrnnnennnne 59 Filter Installation sensa 59 Filter Cover Installation esee 60 Power Cord Retaining Bracket sse 60 Thermistor Silicone arnrnnnnnnrnnnnnvnnnennrnnnnnvnnnnnrrnennrnnnnenrenennrnesennn 62 Thermistor Removal eennnnnnnnvnonnnnnnnvnnnnnnnnvnnnnnnnnavnennnnnnvennnnnnnen 62 Duct Adapter Removal srrrrnnnnnnnvrnnnnnnnvrnnnnnnnnrrnnnnnnnnrrnnnvensrrnnneenn 63 Duct Adapter Placement reennrnrnnnvnnnnnnnnnvnnnnnnnnnennnnnnnnnenennnennne 63 Thermistor Position Within Duct Adapter 64 Cover Screw Locations sssssssssssssseeeeenns 65 Filter Removal mmrrrnnnrnnrvvrrvnnvnnananonnnnnnnnrnenrnnnnnnenannannnnrnnrnnrnennnn 67 Warming Unit Mounting Clamps sseeeeee 67 Separated Covers sssssssssssssseeeeeene nennen 68 Front Cover Assembly ssssssssseeeeeen nens 68 Cable Disconnect oe eterne tete be t re ONE 69 Thermistor Cable Removal cccccccseeeeeeeeeeeeeeeeeeeeeeseteeeeeneeeees 70 Blower Assembly Screws sse 70 Blower Capacitor i eot eee tenet th Reeder 71 Blower Motor Removal essen 71 Blower Assembly Clips A 72 Rubber Washer mennnnnnnnnvnnvennnnnnnvnnnnsannvnnnnnnnnnvnnnnsnnnnvnnnnsennnnnnne 72 Heater Assembly tectae diia redet etu tree ivt 73 Warming Unit Mounting Brackets AAA 73 Heater Assembly Insta
43. nt cover assembly and install the four mounting screws The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 28 Figure 28 Universal PCB Screws 18 Connect the ribbon cable connector See Figure 29 item 4 32 Disassembly Guide Figure 29 Cable Connections 19 Connect the thermistor cable connector See Figure 29 item 3 20 Install cable tie down around the thermistor cable connector and universal PCB connector See Figure 29 item 2 2 Connect the key pad grounding strap and blower ground wire The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 29 item 2 22 Install the cable tie around the blower ground cable and the cable tie down mount See Figure 29 item 1 23 Slide the power switch through the front of the front cover assembly until the four clips on the power switch click into place Ensure that the 0 marked on the front of the power switch is towards the bottom of the front cover assembly See Figure 30 Figure 30 Power Switch Clips WT 5300 33 Disassembly Guide 24 Connect the four wires to the power switch Refer to the wire colors recorded in accordance with the Caution before Step 7 See Figure 31 item 5 Figure 31 Front cover Assembly Component Locations 25 Install the cable tie around the power switch cables The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 31
44. ntative Table 6 Output Temperature Check Equipment Required Equipment Description Use Temperature Probe Mon a Therm subcutaneous temperature probe or equivalent and monitor with an accuracy of 0 2 degrees C Tape To hold the temperature probe in place WarmTouch CareDrape To complete patient warming system Lower Body Blanket 1 Lay the temperature probe alongside the warming system nozzle at the end of the hose and bend approximately 4 centimeters 1 5 inches of the temperature probe into the nozzle opening 2 Position the tip of the temperature probe so that it is centered in the middle of the nozzle opening and is inside the nozzle approximately 2 5 to 5 centimeters 1 to 2 inches 3 Tape the probe in place 4 Connect the probe to the temperature monitor 5 Connect the nozzle to the blanket 6 Extend the warming system hose to configuration shown in Figure 13 Performance Verification 35 6 to 40 6 cm 14 to 16 inches 71 1 to 76 2 cm 28 to 30 inches Figure 13 Output Temperature Setup 7 Turn on the warming system 8 Select the low temperature setting See Figure 14 Warmlouch FFF NELLCOR Patient Warming System 1 Boost Temperature Select 3 Medium Temperature Select 2 High Temperature Select 4 Low Temperature Select Figure 14 Temperature Selection 9 Allow the temperature to stabilize 8 to 10 minutes The temperature monitor should indicate
45. of a circuit breaker rocker switch located on the front of the unit and a line filter power cord receptacle located at the bottom of the unit Power enters the main circuit board at J2 pins 3 and 4 The input voltage drives three major sections of the warming system DC power supply heater blower 96 Principles of Operation Blower The blower is connected to the main circuit board through connector J2 pins 7 and 9 Heater The heater section consists of a heater element 1 000 Watts and an over temperature thermostat that will open if the blower fails to operate Thermostat Protection There are two thermostats A and B located at the exit of the blower Thermostats A and B are redundant systems and if necessary will automatically turn the heater off when the output temperature exceeds a set level This condition lights the Warning light on the control panel Refer to Thermostat Protection Check on page 17 Over Temperature Test Port The over temperature test port is located on the back panel of the warming system unit The test port is used to verify the thermostat protection circuitry Refer to Thermostat Protection Check on page 17 WT 5300 97 Blank Page REF U1 U2 U3 U4 U5 U6 U7 SHIELD GRN YEL POWER TABLE VCC 14 14 16 14 16 VCC VCC RP1A 10K vec vec vec vec RP2A 1K RP1B RP1C RP1D RP1E D1 10K 10K 10K 10K c8 GRN 0 1mF 50v
46. or this procedure are Tool Parameter Use Phillips screwdriver 2 Wire cutter Cut cable tie downs Knife Removal of silicone RTV Silicone RTV Thermistor connection Torque driver wrench 7 in Ibs to 12 in Ibs 18 cm kg to 30 cm kg Use the following procedure to replace the duct adapter assembly 1 Separate the warming unit front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 Caution The thermistor is very delicate and easily damaged Use extreme care when handling removing or replacing the thermistor 2 Remove the silicone RTV from the thermistor connection on the duct adapter assembly See Figure 70 item 1 60 Disassembly Guide Figure 70 Thermistor Silicone 3 Carefully slide the thermistor out of the duct adapter assembly See Figure 71 item 1 Figure 71 Thermistor Removal 4 Liftthe duct adapter assembly out of the rear cover assembly See Figure 72 item 1 WT 5300 61 Disassembly Guide Figure 72 Duct Adapter Removal 5 Connect the three wires on the removed duct adapter onto the replacement duct adapter ensuring the same connection points 6 Slide the new duct adapter assembly into the blower housing See Figure 73 item 1 Figure 73 Duct Adapter Placement Caution The thermistor is very delicate and easily damaged Use extreme care when handling removing or replacing the thermistor 62 WT 5300 Disassemb
47. p of the heater when the heater is installed in the rear cover assembly 72 Disassembly Guide 31 Slide the heater into the replacement rear cover assembly See Figure 89 item 2 Figure 89 Heater Assembly Installation 32 Route heater black and red in some units the wire is white not red wires through the cut outs in the rear cover assembly See Figure 89 item 3 33 Place the rubber washer into the rear cover assembly with the wire indentations over the heater wires See Figure 90 item 1 Figure 90 Rubber Washer 34 Place the blower assembly into the rear cover assembly and ensure that the four blower assembly clips attach over the edges of the blower assembly See Figure 91 WT 5300 73 Disassembly Guide Figure 91 Blower Installation 35 Install the four blower assembly mounting screws into the rear cover assembly The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 92 Figure 92 Blower Screws 36 Attach the cable tie around the thermistor cable See Figure 93 item 1 74 Disassembly Guide Figure 93 Thermistor Cable Installation 37 Install the thermistor cable terminal board The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 93 item 2 Caution Do not over tighten the capacitor nut Over tightening the capacitor nut will cause the plastic rib to crack 38 Install the capacitor in the rear cover assembly
48. r 230 volt e 2 pins 16 18 GA 13A The tools required for this procedure are Tool Parameter Use Phillips screwdriver 2 Wire cutter Cut cable tie downs 44 Disassembly Guide z Parameter Use Tool Continued Continued Socket 10mm Contact removal tool AMP 305783 or equivalent Torque driver 4 in lbs to 12 in Ibs 10 wrench cm kg to 30 cm kg 36 in Ibs 44 in Ibs 91 cm kg to 112 cm kg Use the following procedure to replace the heater assembly Remove the filter cover assembly from the rear cover assembly See Filter Cover Assembly Replacement on page 23 2 Remove the filter assembly from the rear cover assembly See Figure 47 item 1 Figure 47 Filter Removal 3 Separate the front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 and four clips It is easier for two people to release the clips and lift the 9 Note The blower assembly is held onto the rear cover assembly by four screws blower assembly from the rear cover assembly 4 Remove the four screws holding the blower assembly to the rear cover assembly See Figure 48 WT 5300 45 Disassembly Guide Figure 48 Blower Assembly Screws 5 Separate the warming unit front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 6 Cutthe cable harness cable tie down See Figure 49 items 1 and 2 Figure 49 Cable
49. rcuit 95 Control panel 93 Customized warming therapy 4 D DC power supply circuit 94 Disassembly guide 23 Disinfecting 15 Duct adapter assembly replacement 61 E Earth leakage current test 22 Electric shock 1 Electrical shock hazard 1 Enclosure leakage current test 22 Explosion hazard 1 F Filter cover assembly replacement 23 Fire hazard 1 Front and rear covers separating 25 Front cover assembly replacement 28 G Ground integrity test 22 Ground stud 22 H Heater 97 WT 5300 Heater assembly replacement 45 HEPA filter 11 HEPA filter replacement 9 Hose replacement 11 Hose retaining wire 13 I Introduction 3 L LCD hour meter 96 M Main circuit board 94 MRI warning 2 N Nozzle replacement 15 O Operating hours meter 9 Ordering information 83 Output temperature check 20 Over temperature test port 97 P Packing for shipment 87 Patient burns 1 Performance verification 17 Possible explosion hazard 1 Possible patient injury 19 Power cord replacement 13 Power cord routing 14 Principles of operation 93 R Rear cover assembly replacement 65 Repacking in a different carton 89 Repacking in original carton 87 Replacement parts web address 85 Returned goods authorization RGA number 87 Returning the WT 5300 87 101 Index Routine maintenance 9 S Safety features 4 Safety information 1 Safety tests 22 Single patient use 2 Spare parts 83 Specifications 91 earth
50. removed universal PCB See Figure 38 item 1 Figure 38 Universal PCB Solid State Relay Assembly WT 5300 39 Disassembly Guide 9 Cut and remove transformer voltage selection jumpers S1 and S3 on the replacement universal PCB See Figure 39 items 2 and 3 S3 S2 S1 1 Transformer T1 4 Relay Mounting Hole 2 Transformer Jumper S1 5 Relay Mounting Hole 3 Transformer Jumper S2 Figure 39 Part of Universal PCB 10 Install the removed solid state relay assembly onto the replacement universal PCB The small screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg The larger screws should be torqued to 17 in Ibs to 20 in Ibs 43 cm kg to 51 cm kg See Figure 38 11 Ensure the alarm jumper is connected between connector J4 pins 2 and 3 See Figure 40 1 J4 Pin 1 2 J4 Pin 3 Figure 40 Universal PCB Alarm Jumper 40 Disassembly Guide panel key pad push buttons Failure to do so could damage the key pad or the m Caution Carefully align the five lights on the universal PCB with the control universal PCB lights See Figure 41 Figure 41 Universal PCB Lights 12 Carefully place the replacement universal PCB into the front cover assembly and install the four mounting screws The screws should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 42 Figure 42 Universal PCB Screws 13 Connect the ribbon cable conn
51. ressure 1 060 hPa to 500 hPa 375 mmHg to 795 mmHg Relative Humidity 15 to 95 non condensing Ground Integrity Test 100 milliohms or less Earth Leakage Current Test Enclosure Leakage Current Test 92 AC Polarity Line Cord Neutral Cord Cale Normal Closed Closed 100 pA Reversed Closed Closed 100 pA Normal Open Closed 100 pA Normal Closed Open 100 pA ALe Me Ground Usmon standard Cable ES1 Closed Closed Closed 100 uA 100 pA Closed Closed Open 100 uA 300 pA Closed Open Closed 100 uA 300 WA Open Closed Closed 100 uA 100 pA Open Open Closed 100 pA 300 uA Open Closed Open 100 pA 300 uA Principles of Operation Control Panel The control panel features four manually switched temperature settings The selected temperature is indicated by an LED indicator WarmTouch SS eweucon Patient Warming System Medium High 43 C Figure 106 Control Panel Each temperature setting represents the average temperature of air entering the blanket The four temperature settings are Low 32 C 89 6 F Medium 38 C 100 4 F e High 43 C 109 4 F Boost 45 C 113 F for 45 minutes There is a warning light on the control panel See Figure 106 The warning light indicates that the warming system s safety thermostats have disabled the heater The warming system will continue to blow air until the output temperature has
52. s are listed on the Internet at http www mallinckrodt com respiratory resp Serv Supp Apartweb Main PartAcceMenu html Manual Availability The most recent revision of this manual is available on the Internet at http www mallinckrodt com respiratory resp serv supp productmanuals html WT 5300 85 Blank Page Packing for Shipment Introduction To ship the monitor for any reason follow the instructions in this section Returning the WT 5300 Contact Nellcor s Customer Services Department or your local Nellcor representative for shipping instructions including a Returned Goods Authorization RGA number Pack the WT 5300 in its original shipping carton If the original carton is not available use a suitable carton with appropriate packing material to protect it during shipping Return the WT 5300 by any shipping method that provides proof of delivery General Instructions Pack the WT 5300 carefully Failure to follow the instructions in this section may result in loss or damage not covered by any applicable Nellcor warranty If the original shipping carton is not available use another suitable carton North American customers may call Nellcor s Customer Services Department to obtain a shipping carton Prior to shipping the WT 5300 contact your supplier or local Nellcor office Customer Services Department for a returned goods authorization number Mark the shipping carton and any shipping documents with th
53. sembly Guide Front Cover Assembly Replacement The replacement front cover assembly comes assembled with e 1 front enclosure e 1 key pad e 1 lens e 1 ground symbol label e 1 cable tie mount e 1 cable tie e ground equipotential label e 1 6 5 mm 0 25 inch hole for equipotential ground pin The tools required for this procedure are Tool Parameters Use Phillips screwdriver 2 Torque driver wrench 4 in lbs to 12 in Ibs 10 cm kg to 30 cm kg 36 in Ibs to 40 in Ibs 91 cm kg to 112 cm kg Wire cutter Cutting cable tie downs Socket wrench 10 mm Use the following procedure to replace the front cover assembly 1 Separate the front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 2 Cut the cable harness cable tie down See Figure 22 item 1 28 Disassembly Guide Figure 22 Cable Harness Cable Ties downs 3 Disconnect the 9 pin connector from the universal PCB See Figure 23 item 1 S P 3 d oja 28 228 S5 Ola st wn I E H ka o 2 Ki 6 259 RIS g 2 s8 31 815 ES x 2g 85i9 oOo lei es 9 9 58 S S oe SE o mic INJA Figure 23 Front Cover Assembly 29 WT 5300 Disassembly Guide 4 Disconnect the equipotential ground stud and remove it from the front cover assembly See Figure 23 item 2 5 Remove the AC power connector from the front cover assem
54. stor connection Figure 61 Duct Adapter Placement 34 Connect the thermistor cable to the universal PCB assembly See Figure 62 item 3 54 Disassembly Guide Figure 62 Cable Connections 35 Install the cable tie around the thermistor cable See Figure 62 item 1 36 Connect the key pad ground strap and the blower ground wire The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 62 item 2 37 Connect the four wires to the power switch See Figure 63 item 5 Figure 63 Front Cover Assembly WT 5300 55 Disassembly Guide 38 Install the tie down around the four power switch wires The screw should be torqued to 4 in Ibs to 6 in Ibs 10 cm kg to 15 cm kg See Figure 63 item 4 39 Install the AC power connector into the front cover assembly The screws should be torqued to 7 in Ibs to 10 in Ibs 18 cm kg to 25 cm kg See Figure 63 item 3 40 Connect the ground wires to the equipotential ground stud Figure 63 item 2 The nuts should be torqued to 36 in Ibs to 44 in Ibs 91 cm kg to 112 cm kg See Figure 64 1 Blower Housing Ground 2 Blower Motor Ground 3 AC Power Connector Ground Figure 64 Equipotential Ground Stud Wiring 41 Connect the 9 pin connector to the universal PCB See Figure 63 item 1 42 Install the cable harness cable tie down See Figure 65 items 1 and 2 56 WT 5300 Disassembly Guide Figure 65 Cable Harn
55. t s core body temperature There are several safety features of the warming system which make it safe and appropriate for such use Customized Warming Therapy Clinicians select temperature range setting at the onset of warming therapy to help ensure the appropriate setting is selected for every patient Automatic Temperature Stepdown The warming system provides a 45 minute temperature stepdown feature When in the Boost mode blower temperature will automatically drop to the high mode after each 45 minutes of use The temperature may be reset to the Boost mode by selecting the Boost temperature on the unit front panel to start another 45 minute cycle Automatic Over Temperature Shutdown The automatic temperature controller and two back up systems help to ensure temperature will not reach excessive levels If necessary the back up systems automatically turn off the heater and illuminates the warning light The warming system heater will start producing heat when the warming system temperature drops to approximately 55 C to 57 C Warning Light When the warning light on the control panel is illuminated it indicates that one of the two thermostats has turned off the heater The reason for the heater turn off should be investigated as soon as possible after use HEPA Filter The system s High Efficiency Particulate Air Filter is 99 97 efficient at 0 3 micron particle size Wheel Locks WT 5300 Introduction The cart is equ
56. wdriver 2 Wire cutter Socket Cut cable tie downs 10 mm Torque driver wrench 4 in Ibs to 12 in Ibs 10 cm kg to 30 cm kg 36 in Ibs to 44 in Ibs 91 cm kg to 112 cm kg Use the following procedure to replace the rear cover assembly 1 2 WT 5300 facing you page 23 Unplug the warming system power cord from the AC outlet Place the warming system unit on a workbench with the bottom of the unit Remove the filter cover assembly see Filter Cover Assembly Replacement on Separate the front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 item 1 Slide the filter cover assembly from the warming unit Remove the filter assembly from the rear cover assembly See Figure 76 65 Disassembly Guide Figure 76 Filter Removal 7 Remove the three warming unit mounting clamps from the rear cover assembly See Figure 77 Figure 77 Warming Unit Mounting Clamps between the covers are short and may be damaged if too much pressure is applied lt gt Caution Separate the front and rear covers very carefully The wires connected to them 8 Separate the front and rear cover assemblies See Separating the Warming Unit Front and Rear Covers on page 25 9 Cut the two cable ties See Figure 78 items 1 and 2 66 Disassembly Guide Figure 78 Separated Covers 10 Disconnect the 9 pin connector from the universal PCB See F
57. your institution s procedures or The warming system may be surface cleaning by using a soft cloth dampened with either a commercial nonabrasive cleaner or a solution of 77096 alcohol in water and lightly wiping the surfaces of the monitor e The warming system may be disinfected using a soft cloth saturated with a 1096 solution of chlorine bleach in tap water 15 Blank Page Performance Verification Thermostat Protection Check WT 5300 This procedure checks to ensure that the thermostat protection controls are working properly This procedure should be performed before returning the warming system into service Table 5 lists the equipment required for the thermostat protection check No calibration of the thermostat protection is required or possible If the test time or temperatures are outside the allowable range factory service is required Contact Nellcor s Customer Services Department 1 800 635 5267 or your local Nellcor representative Table 5 Thermostat Protection Check Equipment Required Equipment Description Use Temperature Probe Mon a Therm subcutaneous temperature probe or equivalent and monitor with an accuracy of 0 2 degrees C Tape To hold the temperature probe in place Stopwatch Manual or electronic Jumper wire with alligator 8 to 30 centimeters 3 to 12 inches long clips alligator clip at each end 12 gauge minimum Phillips Screwdriver 2 WarmTouch CareDrape To compl
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