SERVICE MANUAL TWIN MODEL RP200C( _ )
Contents
1. btt x PART LAST ic pr up tae al gia a aeui d e e at 21 22 3 SPECIFICATIONS RESPIRATORV PROTECTOR RP200C S1 2 INLET PRESSURE Max 150 PSIG STATIC 10 4 bar RATED AIR FLOW 250 SCFM 118 0 L s OPERATING PRESSURE 100 PSIG DYNAMIC 6 9 bar OUTLET PRESSURE RANGE 0 125 PSIG 0 8 6 bar OPERATING TEMP RANGE 68 150 F 20 65 C COMPRESSED AIR TEMP 0 105 F 17 TO 40 C AMBIENT AIR TEMP OPERATING RELATIVE 30 90 RH HUMIDITY INLET AIR OUTSIDE DIMENSIONS 66 L x 36 W x 7 75 D 1676mmx 714mm x 197mm WEIGHT IN CLUDIN G MONITOR 250 LBS 113 7 kg REPLACEMENT FILTERS GRADE 10 ELEMENT FOR 80411 PRE COALESCER FILTER 80403 GRADE 6 ELEMENT FOR 80412 PREFILTER 80404 THIRD STAGE CHARCO AL CARTRIDGE W GASK ETS 80174 203 2 REQ D PER UNIT FOURTH STAGE CATALYST CARTRIDGE W GASKETS 80174 204 2 REQ D PER UNIT GENERAL SAFETV WARNINGS WARNING THE MST RESPIRATORY PROTECTOR MODELS 1 2 3 4 5 SHOULD NOT be used when the air entering the filtering system is oxygen deficient The MST Respiratory Protector will not increase the oxygen content of the air SHOULD NOT be used in Immediately Dangerous to Life and Health Atmosphere IDLH unless it is used in conjunction with a Back Up Escape system or a supplied air Self Contained Breathing Apparatus SCBA where applicable CARBON MONOXIDE MONITOR will alarm if Carbon Monoxid2. absorbs Ozone Nitric Oxide Sulfur Dioxide Nitrogen Dioxide Hydrogen Sulfide Ammonia Acetaldehyde Methyl Chloride MethylEthyl Ketone Acetone and Methyl Alcohol Finally the air passes through a one 1 micron filter disc at I A sample of the filtered air is taken at J and passed through the Carbon Monoxide Monitor The monitor continuously checks the air quality per OSHA CSA requirements for Carbon Monoxide and digitally displays the amount present in PPM parts per million An audible alarm will alert operators if levels of Carbon Monoxide exceed OSHA CSA requirements 6 MODEL RP200C S1 2 OPERATIONAL DIAGRAM CARBON NON OXIDE MONITOR AUTO DRAIN FIGURE NO 1 2 MODEL 200 S1 2 RESPIRATORV PROTECTOR CARBON MONQEDE CONNECT THE POWER CORD OF ADAPTER DEPENDING ON MONITOR SUPPLIED DEDICATED SWITCHED 110 WAC CRITLET d POWER SOURCE ANALE ALARM P di 118 dbl 20 FT A COED SLAPPLIED IMLET MALL VALVE REMOVE Alt AMPLE AAIEN TUBE HERE rx b CALIBRATE MOMITOR 2 BAMPLE AIR REGULATDR GALUHSE AND FLOWMETER ASSEMBLY MOUNTING BOARD 34 THR x 38 x 67 Ced bar BHA MOUNTING 11 TYR adm HOLES 4 PLACES 8 GENERAL OPERATIONS WARNING The MST Respiratorv Protector should not 1 be used when theair entering MST s Unit is oxygen deficient MST s Unit will not increase the ox
3. Save Your Breath With MODERN SAFETY TECHNIQUES 11388 Breininger Rd Phone 800 542 6646 Box 87 868 mod safe Hicksville OH 43526 419 542 6645 Website www modsafe com Fax 419 542 6475 Email modsafecbright net SERVICE MANUAL TWIN MODEL RP200C S1 2 RESPIRATORY PROTECTOR kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk WARNING Do not attempt to operate this equipment without first reading and unde rstanding these operating instructions Suitability foruse ofthis device lies solely with user kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk 2 05 2 CONTENTS SPECIFICATIONS e rai tu ua NS S Sep ee SES een S o 3 GENERAL SAFETY WARNINGS e REA REY n ER EIER 4 GENERAL PURIFICATION SYSTEM 5 GENERALOPERATIONS INTRODUCTION enn SRL Oe pled ea e da east Por 8 CUSTOMER AIR SUPPLY ien ba l ERE 8 MSTRESPIRATORY PROTECTOR INITIAL INSTALLATION AND 5 9 MSTRESPIRATORY PROTECTOR GENERAL OPERATION AND 12 ESTIMATED MAINTENANCE 13 FILTER SET SERVICE INSTRUCTIONS UE T e 14 RECORD KEEPING nite vo eaves a 17 PERFORMANCE CURVES 2
4. 1 0 160 PSI GAUGE 35 80533 1 REGULATOR 1 4 36 80213 1 FLOWMETER 37 80261 1 90 TUBE LOCKING COLLAR 38 80605 1 MNT BOARD 3 4 x 36 x 66 39 8008403 1 REMOTE ALA RM 119db 40 80077 1 CO MONITOR 2002 FOR MODEL RP200CA S1 2 41 80127 1 CO MONITOR 5700 FOR MODEL RP200CMS T S1 2 41A 80247 1 110 VAC ADAPTER FOR 5700 CO MONITOR MODEL RP200CM ST S1 2 See following page Figure No 7 for detailed drawing 22 MODEL RP200C S1 2 RESPIRATORY PROTECTOR FIGURE NO 7
5. C 4 SUPPLIED AIR CONDITIONING May be required ahead of MST s Unit to control inlet air temperature 5 AVOID INSTALLING MST UNIT AFTER DESICCANT DRYER The Desiccant Dryer will produce extremely dry air 4 R H or less and MST s fourth stage catalyst requires 30 90 R H in the supplied air for the catalyst to work and remove Carbon Monoxide efficiently The extremely dry air produced by a Desiccant Dryer will also cause worker discomfort i e dry throat etc 1 2 3 4 5 6 7 8 9 MST RESPIRATORY PROTECTOR INITIAL INSTALLATION AND START UP Refer To Figure No 3 CONNECT CUSTOMER S PIPE HOSE TO MST UNIT Be sure a minimum 2 I D pipe or hose is used Purge new air line prior to connecting to MST Unit Be sure all solvent fumes and gross particulates that could build up when initially assembling inlet piping are purged out of line s This will prevent overloading of MST Unit s filter elements NEW FILTER SYSTEM CONDITIONING Flow supplied air through new filter sets for several minutes to condition REMOTE AUDIBLE ALARM Is supplied with unit Plug into the bottom of monitor It is supplied with a 20 Ft cord and produces 119db Check Audible Alarm by rotating zero potentiometer CW unitl display reading is equal to alarm level setting US 10 ppm CAN 5 ppm The audible alarm should be energized The zero pontentiometer will have to be reset to 00 using zero air calibration
6. Respiratory Protector Filtration System at the inlet A is usually contaminated with oil water dirt rust scale and often deadly Carbon Monoxide gas As the air passes through the Pre coalescer Stage B particulate and liquid contaminates will be trapped and coalesced out greater than 0 7 micron solids trapped and down to 2 0 micron liquid aerosols removed at an efficiency rating of 95 The liquids are trapped and expelled throught the Automatic Float Drain The Differential Pressure Gauge DPG at C will indicate when the element requires changing The First Stage D of Prefilter traps and retains particulate matter 3 0 micron and larger by a high surface area pleated filter media The air then passes through the Second Stage E of Prefilter which traps all particulate matter larger then 0 3 micron and coalesces liquid aerosols with an efficiency rating of 99 97 this meets Underwriter Laboratory Specifications UL586 for high efficiency particulate air filter units HEPA Rating The liquids are trapped and expelled through the Automatic Float Drain The DPG at F will indicate when the element requires changing The Third Stage G contains a deep bed of odor absorbing activated charcoal which collects various gaseous Hydrocarbons such as oil vapors benzene etc and removes them The Fourth Stage H contains low termperature catalyst which converts Carbon Monoxide gas into Carbon Dioxide The unique catalyst also converts
7. de de dede dee AIR SAMPLE METERING VALVE ADJUSTMENT REFER TO FIGURE NO 4 1 After pressurizing system and respirators air flow is set adjust the air sampleregulator to 10 20 PSI pressure 2 Turn the flowmeter s adjustment knob counter clockwise slowly until the black floating ball is within the GREEN BOXED AREA etched on flowmeter body CAUTION if adjustment knob is turned too quickly the black floating ball may get stuck to the top of flowmeter scale Damage to monitor s sensor may occur due to extremely high air flow to sensor not covered by sensor warranty AIR SAMPLE FLOWMETER BLAG FLOATING BALL GREEN BOXED AREA TUBE FROM CO MONITOR FLOWMETER ADJUSTMENT NOB AIR SAMPLE REGULATOR GAUGE Figure no 4 1 2 3 4 12 MST RESPIRATORY PROTECTOR GENERAL OPERATION AND MAINTENANCE MONITOR Utilizes an electrochemical sensor to measure the carbon monoxide content of the respirable air If a problem has developed in the system the monitor will alarm due to one or more of the following conditions a Monitor may be out of calibration The monitor should be calibrated monthly if used continuously and prior to use if used on a non continuous basis Calibrate monitor as outlined in the MONITOR MANUAL b If the monitor can be and is calibrated but the alarm still sounds the filter cartridge life is exhausted Replacement of filter elements as outlined in the Filter Replacement Instruction
8. sliding the Third and Fourth Stage Aluminum Tube Assemblies back in place install Gaskets 7 Coat both sides of each gasket with petroleum jelly and install in recessed areas in Base 3 and Manifold 8 After Aluminum Tube Ass v are installed check to make sure the Gaskets 7 are positioned properly top and bottom both ass v g Replace the front two Manifold Bolts 4 and tighten all bolts in sequence from center outward to 25 foot pounds Repeat sequence and torque bolts to 30 foot pounds Recheck for proper torque limit h Tighten Bracket Bolts 1 against Brackets 2 on both sides 1 Dispose of used cartridges according to local state and federal regulations 16 3 FINAL CHECK AND CALIBRATION a Pressurize system and check for leaks b Flush system with compressed air for several minutes c Calibrate Carbon Monoxide Monitor as outlined in the MONITOR MANUAL er 4 4 O1 i 25 T n TORQUE aT 27 4 SEQUENCE ILI o T L FOURTH STAGE THIRD STAGE 6 AL TUBE ASS Y 5 AT TUBE ASS Y FIGURE NO 6 3 Final Check and Calibration a Pressurize system and check for leaks Re tighten necessary parts to stop any leakage Flush system with compressed air for five 5 minutes c Calibrate the Carbon Monoxide Monitor as outlined in the Monitor s instruction manual 17 RECORD KEEPING Record all periodical air qualitv checks monitor calibration dates filter cartridge cha
9. 764 dOHd 395539 21 RESPIRATORV PROTECTOR MODEL RP200C S1 2 PARTS 1 80425 1 2 BALL VALVE 2 603 092 3 2 BR PIPE NIPPLE x 3 LG 3 80411 1 PRE COALESCER 450 CFM GR 10 4 80422 2 DIFFERENTIAL PRESSURE GAUGE 5 80051 2 TUBE LOCKING COLLAR 6 S710 005 2 DRAIN TUBE 7 80412 1 PREFILTER 450 CFM GR 6 2 stg 8 80448 1 2 BR UNION 9 S603 091 2 2 BR PIPE NIPPLE 2 LG 10 80449 2 2 BR TEE 11 S638 019 6 2 x 1 1 4 BR HEX BUSHING 12 80586 4 1 1 4 BR PIPE NIPPLE x 12 LG 13 8622 006 4 1 1 4 BR 90 ELBOW 14 5603 077 4 1 1 4 BR PIPE NIPPLE x 3 LG 15 80196 4 MANIFOLD BRACKETS 16 006 150 12 5 16 18 x 3 4 HH SCREWS 17 80187 10 MANIFOLD BOLTS 18 80197 10 MANFOLD WASHERS 19 80173 2 BLUE MANIFOLD 20 80172 2 BLUE BASE 21 80176 2 2 AL TUBE STAGE 22 80176 2 2 AL TUBE 4 STAGE 23 80114 4 BASE BRACKET 24 8037 056 4 1 4 20 x 3 4 BH SCREWS 25 S412 009 4 1 4 INTERNAL LOCK WASHER 26 80115 4 1 4 FENDER WASHER 27 80447 2 1 1 4 BR UNION 28 8603 075 2 1 1 4 BR PIPE NIPPLE x 2 LG 29 80424 1 2 BR CROSS 30 S638 017 2 1 1 4 X 3 4 BR HEX BUSHING 31 80427 1 34 X 150 PSI PRV 32 S638 016 1 3 4 X 1 4 BR HEX BUSHING 33 S608 003 1 1 4 HEX NIPPLE NO 5608 002 1 14 x 1 8 HEX NIPPLE NO 623 001 1 1 8 90 ELBOW 34 80091
10. PSID Refer to Figure No 5 1 Replace the Dual Stage Element 6 using the above Prefilter Stage Element replacement instructions 2 Dispose of used Prefilter Dual Stage Element according to local state and federal regulations 15 LAL STAGE GRADE 4 Cn fa AL lt lt PFEE CXIATESCER STAGE 10 FIGURE NO 5 3 THIRD FOURTH STAGE CARTRIDGE REPLACEMENT Third Stage Charcoal Fourth Stage Catalyst Refer to Figure No 6 a Loosen Bracket Bolt 1 from Bracket 2 do not remove on both sides of Base 3 b Loosen the five Manifold Bolts 4 and remove the front two Bolts Now slide out the Third 5 and Fourth 6 Stage Aluminum Tube Assemblies c Remove the four old Gaskets 7 from the recessed areas in Base 3 and Manifold 8 cleaning sealing surfaces from any gasket material debris d Slide old Third Stage Filter Cartridge 9 out of aluminum tube Clean aluminum tube in mild soap and water dry and install new Third Stage Filter Cartridge Be sure the Flow Direction Arrow on Third Stage Filter Cartridge is pointing down Remove End Sealing Labels 10 from both ends of cartridge completely e Follow same procedure for the Fourth Stage Filter Cartridge 11 replacement as in step d Be sure the Flow Direction Arrow on Fourth Stage Filter Cartridge is __ pointing up Also remove End Sealing Labels 10 from both ends of cartridge f Before
11. e levels exceed requirements for Grade D Breathing Air set fourth by OSHA CSA If alarm should sound remove respirator or activate SCBA and immediately move to safe breathable atmosphere Have the proper qualified personnel examine the equipment and make the appropriate corrections before using again SHOULD NOT have air inlet pressure greater than 150 PSIG static 10 4 bar Personal injury could result PURIFIED AIR provided at the point of attachment for the Manufactures Respirator Hose should be regulated and not exceeding the Manufacturers Respirator Hose Assembly pressure requirements GENERAL PURIFICATION SYSTEM DESCRIPTION The MST Respiratory Protector a compressed breathing air purifier is a system designed to remove or reduce selected contaminates including Carbon Monoxide that is found in standard compressed airlines The Respiratory Protector gives you the advantage ofconnecting directly to shop air from a standard compressed air source to help provide breathing quality air to face masks helmets hoods and other supplied air breathing devices This eliminates the necessity of providing a separate breathing air compressor or air supply to your workers The Respiratory Protector has a five stage filtration system and a Carbon Monoxide Monitor that is mounted on a convenient mounting board that allows the unit to be mounted on any available surface SYSTEM DESCRIPTION Refer to Figure No 1 amp 2 Airentering the
12. g unit or SERIOUS INJURY COULD RESULT MST Inc recommends replacing all 6 filter cartridges after 9 months of use unless conditions warrant more or less frequent replacement To replace the filter cartridges in the 1 2 RESPIRATORY PROTECTORQ follow these steps PRE COALESCER STAGE GRADE 10 ELEMENT REPLACEMENT Element change is required when the Differential Pressure Gauge DPG indicates a 6 10 PSID 12 PSID max Refer to Figure No 5 1 First unscrew Bowl Assembly 1 A strap wrench may be required to break bowl O ring manifold seal Clean bowl ass v in mild soap and water and blow dry with low pressure air 2 Remove Coalescing Element 2 by unscrewing End Cap Retaining Nut 3 3 Inspect the Filter Manifold 4 for dirt contaminates and clean as required Inspect O ring 5 for cuts etc and replace if required Clean and apply light film of petroleum jell on O ring before re installing 4 Install new Coalescing Element and tighten End Cap Retaining Nut Be sure Element is seated squarely on Manifold s boss and End Cap 5 Apply light film of petroleum jell on Bowl s beveled edge and threads to provide good seal HAND TIGHTEN ONLY to Manifold 6 Dispose of used Coalescing Element according to local state and federal regulations THE FIRST SECOND DUAL STAGE GRADE 6 ELEMENT REPLACEMENT The Dual stage element change is required when the Differential Pressure Gauge DPG indicates an 8 10
13. gas refer to Monitor manual POWER MONITOR CALIBRATE Connect the Power Cord or Adapter to a dedicated 110 VAC switched outlet power source Be sure the monitor s Normal or Power light is on and after a 5 minute warm up calibrate monitor Refer to Carbon Monoxide Monitor Manual CALIBRATION GAS REQUIREMENTS Zero Gas Nitrogen free of CO Span Gas 50 to 150 ppm of concentration in air Calibration gas flow to monitor should be 0 5 to 1 5 SCFH approx 472 cc min REGULATOR SAMPLE AIR FLOW METER After pressurizing system and respirators air flow set adjust regulator located before air sample flowmeter to 10 20 psi pressure Turn the flowmeter s adjustment knob counter clockwise slowly until the black floating ball is within the GREEN BOX area etched on the flowmeter s body CAUTION if adjustment knob is turned too quickly the black floating ball may get stuck to the top of the flowmeter scale Damage to monitor s sensor may occur due to extremely high air flow to sensor not covered by sensor warranty EXTREME TEMPERATURE CHANGES Avoid monitor best performs at a temperature range of 32 105 F 0 to 40 C Always calibrate monitor after it has stabilized in the surrounding air temperature where system is to be used RESPIRATOR HOOD HOSE ASSEMBLY HOOK UP Consult Manufacturer s respirator manual for the proper air pressure requirements and set regulator s at point of attachment MST Unit outlet or rem
14. ms fourth stage catalyst is used up b The operator detects a petroleum smell and or taste in his purified air third stage charcoal is used up NOTE If the supplied air entering MST s unit has high volumes of liquids in it the filter 3 set life may be greatly reduced MST RESPIRATORY PROTECTOR SYSTEM New filter set a Shelf life is indefinate but should be stored in a cool dry storage area b When first installed in MST s unit the filters should be conditioned by flowing the customer s supplied air through system for several minutes 13 ALN YAY OWS 90 395 9599 SLAIN Ve 13345 WAHL SRE III G OLLIINOJ MX TOLA Yd MAHL STW AS 15I1IM del ANT A VO 15 9 IC ONTO HSN CN IV IM I VIM MI Lada KID CTH 15 04 LITIXA 91171 THe LON LSA LEN AU DONNY JLI HOLLY NANOS MIX 159 ATA HOCH U OMY AS SA SUL CTSA SI ACH AHL EH 1s Hem 343HL 328714 3H TIN ATH USO epu SOL ENTIA irme INSLESA S NOLLY AACA aly HOLJALOAA AHOLV ISI LISA 1 TAQON SLNAWIHINOTA JINVNALMIVA ALVALLSA 14 FILTER SET SERVICE INSTRUCTIONS Refer To Figure No 5 and 6 WARNING Always turn off air supply and bleed air pressure before disassemblin
15. nge intervals and anv other service performed on the Respiratorv Protector Unit MST Inc Shall not be liable for any injury loss or damage direct or consequential arising out of the use of or the inability to use this product beyond the replacement of defective materials or workmanship Users of supplied air respirators should evaluate their own particular application and perform their own tests for air quality to determine the suitability for use of this product For further information or questions about service or maintenance care of this unit contact your local distributor or MST Inc At 800 542 6646 18 MST INC SERVICE RECORD RESPIRATORV PROTECTOR MODEL RP200C S1 2 DATE OF SERVICE SERVICE PERFORMED 19 MOT Had 519 335 UZE Ore 03 Wed MCI99 SNOLVINJAH Had oni HO 34965 T3 31 SOIXONCIN INN iid Ob 002 VHSO Had HOJ 3495 LON T3431 SIXONON 006 BOM LYS HS334 MOLUEHAINS2NOS sOIXONDIN MOTA HT T3008 SOLS HS JINVWHOHHIA fidd INOS SOCCONON 19 MI 20 00 OSE 00 052 W32S IV 002 051 00L dOHO 334155334 MOT T3001N SILLSIHALIVETHI JINVWHOJHAd
16. ote regulated drops The air should be dynamically flowing through respirator hose assemblies when the air pressure is set DO NOT EXCEED RESPIRATOR HOSE ASSEMBLY MANUFACTURER S PRESSURE REQUIREMENTS OR PERSONAL INJURY COULD RESULT 10 MODEL RP200C S1 2 RESPIRATORY PROTECTOR NORMAL BELOW 56 TOTAL FLUS COMDITKORED COMPRESSED AIR 10 39 REMOTE ALADA cb SUPPLIED WITH 20 FT CORD DEBELAHT DARTER PARE FOR SUPPLY TO MOT UNIT gt LC SFP ue MA LIKE AR REGULATOR TO 16 28 FH THEN ALLJLIET FLOAMME TER 50 MALL IS LOCATED WITHIN BOX ETCHED OH Boot BALL vaL VE 0 1 PRE COALESCER STAGE WITH OUTLET AUTO ORAIN REMOVES COARSER OLWATER TWO STAGE SOLIDE pec PREFILTER MEETS STD FOR HEPA FILTER SUPPLIED WITH AUTO DRL FIGURE NO 3 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk WARNING SERIOUS INJURY could result ifthe AIR SAMPLE METERING VALVE is not properly adjusted Proper sample air flow to CO monitor is required for monitor to give 4 9 correct level readout Yee e e e e de e de de dede dede de dede dede de de dede de de de de de de dede dede dede de de de de dede de de de de de dede de dede de de de de de de de de de de de de dede de dede de dede
17. s page 14 as required c If the monitor can not be calibrated the carbon monoxide sensor mav require replacement See MONITOR MANUAL for replacement instructions and other troubleshooting information The MONITOR has one 1 year warranty sensor has a two 2 year warranty All warranty work must be performed at factory d If the monitor was calibrated in a surrounding temperature other than where the system was being used and the temperature difference was 36 F 20 C or greater the monitor may give a false alarm due to its characteristics Always calibrate the monitor in the temperature conditions where the monitor 15 to be used in Monitor best performs at temperature range of 32 to 105 F 0 to 40 C CARBON MONOXIDE MONITOR Alarm should be checked periodically Refer to Monitor Manual MONITOR Flow of the air sample to monitor should be checked periodically to ensure sample air flow meter is not clogged This situation normally occurs when customers supplied air has excessive liquids in it and the filters in the MST unit are not routinely changed Periodically check the regulator air flow meter for proper setting location of air flow meter floating ball and general appearance presence of excessive oil water MST RESPIRATORY PROTECTOR SYSTEM Filters should be replaced every 9 months unless the air quality conditions warrant more or less frequent replacement Replace all 6 filter cartridges if a The CO monitor alar
18. ygen content of the oxygen deficient air 2 be used in an Immediately Dangerous to Life and Health atmosphere IDLH unless it is used in conjunction with a back up escape system or a supplied air self contained breathing apparatus SCBA where applicable kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk MST Inc strongly recommends that a complete safety program be instated to ensure that the respiratory air is in compliance with all OSHA CSA standards and other applicable laws regulating the use of supplied air respiratory systems MST Inc recommends that the air quality be tested upon installation and periodically re tested to ensure that the minimum requirements for breathing air are maintained MST Inc will not assume any liability for accidents or personal injury resulting from the improper use of this equipment Service on this equipment should only be performed by qualified personnel This system is to be used only by trained qualified personnel in accordance with a respiratory program as outlined in OSHA Regulation 29 CFR 1910 134 b CUSTOMER AIR SUPPLY Refer To Figure No 3 1 SUPPLIED AIR LINE Use minimum 2 I D hose or pipe to MST Unit 2 SUPPLIED AIR LINE PRESSURE Maximum air pressure at MST Unit s inlet should not exceed 150 PSIG As a Safety Back Up all MST Units incorporate a pressure relief valve rated at 150 PSIG 3 SUPPLIED INLET AIR TEMPERATURE RANGE 68 to 150 F 20 65
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