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Cincinnati Sub-Zero WarmAir 135, Operation & Technical Manual

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Cincinnati Sub-Zero WarmAir 135 Operation & Technical Manual Download Page 31

WarmAir

 Model 135 Manual 

  

REPAIR PROCEDURES

 

 

Page 31 of 43 

Repair Procedures 

 

The repair procedures contained herein allow qualified Medical Equipment persons to repair the 
WarmAir

 135 unit. Service training is available for this WarmAir

 135 unit and other CSZ 

equipment.  For further information, contact CSZ Medical Technical Service Department. 

 

The WarmAir

135 unit must be turned OFF and the power cord must be unplugged before replacing 

any parts.  The WarmAir

135 unit is isolated from the mains power supply by unplugging the power 

cord at the WarmAir

135 unit or at the outlet. 

 
The exploded views of the WarmAir

135 unit below can be used to replace parts. Replacement parts 

should be installed in the reverse order of removal unless instructions specify otherwise.  

 

!

 

CAUTION! 

When installing the electrical components below, follow the accompanying 
instructions. 

Failure to follow instructions could result in electric 

shock.

 

Replacing the Hose 

1.

 

Request CSZ repair part. 

2.

 

Unplug the unit. 

3.

 

Remove the top exterior cover and thermistor. 

4.

 

Unscrew (left hand threads) the hose from the blower housing. 

5.

 

Secure new hose. 

6.

 

Use an Exacto

 knife or equivalent to create an “X” cut in the hose through the thermistor 

hole. 

7.

 

Replace the thermistor and top exterior cover.   

Replacing the Circuit Breaker Power Switch 

1.

 

Request CSZ repair part. 

2.

 

Unplug the unit. 

3.

 

Remove exterior top cover and exterior wrap (optional). 

4.

 

Squeeze the snap tabs on the sides of the switch to allow the switch to slide out of the cutout in 

the cabinet.   

5.

 

Unfasten the four slide-on connectors from the power switch. 

6.

 

Secure the Faston connectors to the new switch, ensuring proper orientation of switch.  

7.

 

Push the power switch back into the cabinet until it snaps into place. 

8.

 

Perform all leakage current and grounding integrity tests. 

Summary of Contents for WarmAir 135

Page 1: ... Operation Technical Manual Model 135 Warming Unit Cincinnati Sub Zero Products LLC 12011 Mosteller Road Cincinnati Ohio 45241 U S A www cszmedical com ...

Page 2: ...NICAL HELP Page 2 of 43 WarmAir FilteredFlo and Warming Tube are Registered Trademarks of Cincinnati Sub Zero Products LLC Copyright 2018 Cincinnati Sub Zero Products LLC All rights reserved Part No 56398 56398 Rev V ECN M1801 5437 ...

Page 3: ...ective parts or units obtain a Returned Materials Authorization RMA number from our Medical Technical Service department A WarmAir Model 135 shipping carton will be sent to you if needed Extended Warranty Available Receiving Inspection After unpacking the WarmAir 135 unit inspect the system for concealed damage Retain all packing material and carefully record or photograph any damage Notify the ca...

Page 4: ...ction 2 Specifications 11 Physical 11 Electrical 11 Temperature Control System 11 Time to reach 37 C from 23 2 C Approximately 3 minutes 12 Safety System 12 Service Life 12 Approvals 13 For Use with Patient Applied Parts 17 Accessories 17 Shipping and Storage Conditions 17 Operating Instructions 18 Control Panel and Operation Label 18 Operation Fundamentals 18 Selecting Temperature and Using the C...

Page 5: ... Power Cord 32 Replacing the Temperature Sensor 33 Replacing the IV Pole Clamp 33 Replacing the Bed Hook 33 Section 4 Repair Service and Parts Ordering 34 Warranty and Repair Policy 34 Obtaining Return Authorization 34 Obtaining Replacement Parts 34 Disposal of the WarmAir 135 Unit 34 Back Plate Assembly 35 Exterior Assembly 36 Main Assembly 37 Parts List 38 WarmAir Packaging Parts List 40 Wiring ...

Page 6: ...vice Manual ILLUSTRATIONS Page 6 of 43 Illustrations Control Panel and Operation Label 18 Back Plate Assembly 35 Exterior Assembly 36 Main Assembly 37 Packaging Assembly Drawing 40 Wiring Diagram ALL VOLTAGES 50 60HZ 41 Appendix 1 42 ...

Page 7: ...election Temperature Selection Switches Low setting 32 2 C Medium setting 37 8 C High setting 43 3 C Separate collection for electrical and Electronic equipment NO FREE HOSING Hose Nozzle MUST be connected to a compatible Forced Air Blanket or thermal injury may occur WARNING To prevent tipping when mounting the Model 135 unit to an IV pole clamp the unit no higher than 44 inches 112 cm on an IV p...

Page 8: ...ient s temperature and or maintain a desired patient temperature through convective heat transfer from the controller to a warm air heated blanket The single patient use blankets transfer the thermal energy to adult pediatric or neonate patients to obtain maintain normal body temperature It is intended for use by appropriately trained healthcare professionals in clinical environments Contraindicat...

Page 9: ... CSZ FilteredFlo Blankets or the Warming Tube Thermal injury may result Do not attempt to warm patient without a blanket i e with the hose only Thermal injury may result Unapproved modifications may cause patient caregiver injury and or equipment damage Do not continue therapy if either the Over Temperature or Under Temperature warning light activates or the audible alarm sounds Do not continue th...

Page 10: ...d be checked for freedom from mechanical damage prior to each application The WarmAir 135 unit is not intended for use in ambient temperatures above 30 C Maximum contact surface temperature during normal operation is 48 C Do not hipot or dielectric test the WarmAir 135 unit Only apply the rated voltage to the unit Subjecting the unit to voltages other than the rated voltage may cause damage to the...

Page 11: ...ital Grade plug 220 240V 50 60Hz units 1200 VA 7 Amp Circuit Breaker 15 4 6m Harmonized Power Cord H05VV F 3x1 5mm cord with CEE 7 7 plug 220 240V 50 60Hz units 1200VA 13 Amp Circuit Breaker 15 4 6m British Standard Power Cord HO5VVF3G1 5mm molded on BS1363 fused male plug For all units Under 300 A earth leakage current Ground resistance 0 2 or less Mains Supply Isolation Two Pole Mains Switch Tem...

Page 12: ...d at the hose outlet of the device i e where the hose connects to the blanket Power shutdown Note Based on testing the maximum contact surface temperature of the blanket when the secondary over temperature limit activates is 45 C 3 0 C Independent Under Temperature Limit 29 4 C 85 F or less as measured at the hose outlet of the device i e where the hose connects to the blanket Audible and visible ...

Page 13: ...e its RF emissions are very low and are not likely to cause any interference in nearby electronic equipment RF emissions CISPR 11 Class A The WarmAir Model 135 is suitable for use in all establishments other than domestic and those directly connected to the public low voltage power supply network that supplies buildings used for domestic purposes Fluctuations and Flicker emissions testing is not r...

Page 14: ...IEC 61000 4 5 1 kV differential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 5 UT 95 dip in UT for 0 5 cycle 40 UT 60 dip in UT for 5 cycles 70 UT 30 dip in UT for 25 cycles 5 UT 95 dip in UT for 5 s 5...

Page 15: ...eld strengths from fixed RF transmitters as determined by an electromagnetic site survey a should be less than the compliance level in each frequency range b Interference may occur in the vicinity of equipment marked with the following symbol NOTE 1 At 80 MHz and 800 MHz the higher frequency range applies NOTE 2 These guidelines may not apply in all situations Electromagnetic propagation is affect...

Page 16: ...ter W Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d 1 2 P 80 MHz to 800 MHz d 1 2 P 800 MHz to 2 5 GHz d 2 3 P 0 01 0 12 0 12 0 23 0 1 0 38 0 38 0 73 1 1 2 1 2 2 3 10 3 8 3 8 7 3 100 12 12 23 For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be estimated using the equation applicable to the freq...

Page 17: ...4 83224 WarmAir FilteredFlo PACU Blanket Pediatric Size 246 82246 WarmAir FilteredFlo Neonate Pediatric Blanket 248 82248 WarmAir FilteredFlo Underbody Blanket 344 82344 WarmAir FilteredFlo Torso Blanket 442 83442 WarmAir FilteredFlo OR Blanket Lower Body 443 82443 WarmAir FilteredFlo OR Blanket Upper Body 460 82460 WarmAir FilteredFlo OR Blanket Lower Body 461 82461 WarmAir FilteredFlo OR Blanket...

Page 18: ... Blanket or Warming Tube For all WarmAir units Insert hose Insert the free end of the flexible hose into the air inlet port of the FilteredFlo Blanket or Warming Tube Make sure the hose is pushed in beyond the raised areas on the fitting Power Unit On Using the rocker switch on the side of the unit depress the I side to activate power to the unit Depressing the O side deactivates power Note The bl...

Page 19: ... The external features on the control panel of the WarmAir 135 unit are described as follows For all WarmAir units Power On Off Indicator This LED light will indicate that the unit is on A temperature selection can now be made Power is toggled at the rocker switch on the side of the unit Temperature Selection Switches Four temperature selection switches on the control panel allow the caregiver to ...

Page 20: ...ctivate the unit to draw in room air heat the air to 37 8 C 4 0 C 2 0 C 100 F 7 2 F 3 6 F and deliver it to the patient via the disposable blanket The LED will be activated to indicate that the unit is in the medium temperature mode The medium temperature setting can be used for immobile patients or for those patients with poor circulation High Temperature Depressing this switch will activate the ...

Page 21: ...ee ways to mount the unit 1 IV Pole The unit may hook onto a secure vertical IV pole of no less Clamp than 3 4 2 2 cm and no more than 11 8 2 86 cm in diameter 2 Mounting The unit may hook onto a secure bed rail or footboard up to Bracket 1 3 4 3 8 cm thick 3 Anti slip Feet The unit may be placed on a table or stand near the patient Do not place the unit in bed with the patient WARNING To prevent ...

Page 22: ...CSZ 1 Turn the unit off and remove from power 2 Lay the unit on its back 3 Unscrew and remove the four rubber feet 4 Remove the plastic baffle plate 5 At the bottom of the unit remove the nut 7mm and washer that hold the filter in place 6 Remove the old filter and discard 7 Insert the new filter replace the washer and tighten nut 8 Install the plastic baffle plate 9 Install and tighten the four ru...

Page 23: ...power and in ambient conditions of 15 30 C 59 86 F The following tools are required Digital air thermometer 400 Series thermistor with a range of 15 6 70 0 C 60 160 F and accuracy of 0 6 C 1 F Phillips screwdriver Current Leakage Tester Ground Resistance Meter Stopwatch Refer to Appendix 1 on page 43 for Test setup and parameters Note All temperature settings represent temperatures at the end of t...

Page 24: ...tructed and secure X 1 12 Air filter is free of damage debris and is secure 2 Functional Verification Pass Fail X 2 1 Plug unit into proper voltage outlet and turn the power switch to the on position all LEDs should blink twice and the audible beeper sounds X 2 2 Press all four setting buttons sequentially the corresponding LED and audible signal activate X 2 3 The blower activates when FAN ONLY i...

Page 25: ...e alarms should activate in less than 1 minute and the unit should shut down When alarm activates Record Temperature here ___________ X 4 4 Turn unit off and on Run on High for approximately 1 minute X 4 5 Primary Over Temperature Limit Press Release micro switch 2 At hose outlet temperature of 52 0 C 3 0 C measured using a thermistor the Over temperature visual and audible alarms should activate ...

Page 26: ...y Tests X 5 1 Perform current leakage tests per table below All measurements should be less than 300 A Pass Fail Polarity Unit Mode Ground Condition Normal Reverse Unit is Off Ground Normal A A Ground Open A A Unit is On and in Ground Normal A A High mode Ground Open A A X 5 2 Measure ground resistance With electrical resistance meter verify the resistance from the metal back plate to the ground p...

Page 27: ...r or loose wire connections Ensure all connectors and terminals are secure Ensure power cord and the base wire harness are properly attached to terminal block Safety Thermostat s open Allow unit to cool from possible over heat condition If condition persists check continuity of each thermostat Replace if necessary The Warming Unit blows air but does not heat Faulty Thermistor Check resistance valu...

Page 28: ... leg White Gray Red Green at room temperature 18 C 65 F 3081 21 C 70 F 2690 24 C 75 F 2354 Replace sensor if necessary Obstructed Filter or Blower wheel Verify unit has adequate air flow Replace filter if necessary Remove top cover and thermistor Remove hose and verify that blower wheel spins freely The Warming Unit alarms at too low or too high a temperature Faulty Thermistor Check resistance val...

Page 29: ...r to the power supply as well as incoming line voltage to power supply Look for loose crimps broken wires or terminals that may have pushed out of the connector housings Repair using appropriate terminals and crimping tool Blower wheel is obstructed Remove top cover and thermistor Remove hose and verify that blower spins freely Faulty Power Supply board Verify connectors and terminals are properly...

Page 30: ...ly increased during operation Faulty Voltage Divider Board Consult with authorized CSZ representative Remove the top cover With the unit on and in the Fan Only mode measure the voltage across the blue and yellow fan wires 24V DC Faulty Voltage Divider Board Warming Unit turns on but temperature settings cannot be selected Faulty or loose membrane switch switch contacts or header Remove top cover a...

Page 31: ...ectrical components below follow the accompanying instructions Failure to follow instructions could result in electric shock Replacing the Hose 1 Request CSZ repair part 2 Unplug the unit 3 Remove the top exterior cover and thermistor 4 Unscrew left hand threads the hose from the blower housing 5 Secure new hose 6 Use an Exacto knife or equivalent to create an X cut in the hose through the thermis...

Page 32: ...exterior top cover 8 Place the board in a static protective bag and container and return it to CSZ 9 Using proper electrostatic procedures reinstall the board by reversing the above steps Replacing the Power Cord 1 Request CSZ repair part 2 Unplug the unit 3 Remove exterior top cover and outer wrap from unit 4 Remove the strain relief from the rear of the back plate using the manufacturer s recomm...

Page 33: ...ecure the sensor fixture around the thermistor using the locknut 9 Complete installation by reversing above steps 10 Perform a complete functional test of the unit Replacing the IV Pole Clamp 1 Request CSZ repair part 2 Unplug the unit 3 Remove the knob 4 Remove the exterior top cover the exterior wrap the thermistor and the internal top 5 Remove the motor mount to ease access to the I V pole scre...

Page 34: ...chnical Service Department 1 888 437 5608 A WarmAir 135 shipping carton will be sent to you if needed Please carefully package all parts returned to the factory Please use non static shielded foam or bubble pack to return the microprocessor control board Shipping damage will be the responsibility of the shipper Insure if necessary Obtaining Replacement Parts Replacement parts are available directl...

Page 35: ...WarmAir Model 135 Manual ASSEMBLY DRAWINGS AND PARTS LIST Page 35 of 43 Back Plate Assembly ...

Page 36: ...WarmAir Model 135 Manual ASSEMBLY DRAWINGS AND PARTS LIST Page 36 of 43 Exterior Assembly ...

Page 37: ...WarmAir Model 135 Manual ASSEMBLY DRAWINGS AND PARTS LIST Page 37 of 43 Main Assembly ...

Page 38: ... M3 x 10mm 17 1 Nylon Clamp 3 8 18 1 Back Plate Main Support 19 1 Terminal Block 2 Position 20 4 Bumper Recessed with Washer 21 1 Test Port Harness 22 3 Nylon Spacer 312 X 156 X 256 23 3 Kepnut M3 24 1 Power Supply Board 24 VDC 25 1 Black Nylon Spacer 194IDX0 25LG 26 1 Nylon Washer 1 8 LG 192 27 1 Plug Black Plastic 100 115V only Kepnut M6 230V only 28 13 Washer Flat 18 8 Stainless Steel 29 1 Volt...

Page 39: ...Hose Assembly 63 1 Knob Clamping 64 1 Label WarmAir 135 Decorative 65 1 Label Specification 100V Label Specification 115V Label Specification 230V 66 1 Label Grounding 67 1 Label No Free Hosing 68 11 Tubing Shrinkable Black 69 1 F W Nylon Washer 9 64X5 16X 025 70 1 Non shrink Tubing 158ID 423LG 71 1 Hose Power Cord Holder 72 73 7 Fiberglass Sleeving 1 2 74 1 Washer 8 Internal Tooth S S 75 1 Screw ...

Page 40: ...m Insert Top Part of Carton Assembly 2 1 Foam Insert Bottom Part of Carton Assembly 3 1 Operation and Technical Manual 4 1 WarmAir 135 100V Unit WarmAir 135 110 120V Unit WarmAir 135 220 240V Unit Eur Cord WarmAir 135 220 240V Unit British Cord 5 1 Carton Carton Assembly for return units only Packaging Assembly Drawing 3 2 4 1 5 ...

Page 41: ...WarmAir Model 135 Manual ASSEMBLY DRAWINGS AND PARTS LIST Page 41 of 43 Wiring Diagram ALL VOLTAGES 50 60HZ ...

Page 42: ...F High temperature setting 43 3 C 4 0 C 2 0 C 110 F 7 2 F 3 6 F WarmAir 135 has approval in accordance with ASTM F2196 02 Standards These standards are based on contact surface temperature of the blanket being 48 C or less Temperatures referenced at the hose outlet do not represent contact surface temperatures of the blanket due to temperature loss through the hose and dispersion through the blank...

Page 43: ...1 513 772 9119 U S 24hr Clinical Support 1 513 460 2038 Med Tech Support 1 888 437 5608 Healthlink Europe BV De Tweeling 20 22 5215 MC s Hertogenbosch The Netherlands WarmAir FilteredFlo and Warming Tube are Registered Trademarks of Cincinnati Sub Zero Products LLC Copyright 2018 Cincinnati Sub Zero Products LLC All rights reserved Part No 56398 ...

Page 44: ...Cincinnati Sub Zero Products LLC 12011 Mosteller Road Cincinnati OH 45241 Telephone 1 800 989 7373 Fax 513 772 9119 www cszmedical com ...

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