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Air Compressors

Summary of content (40 pages)

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Source Equipment Air Compressors
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Source Equipment Table of Contents 6.1 How To Use This Section...................................................................................................................................................................................................1 6.2 Introduction..............................................................................................................................................................................................................................1 6.2.
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6.1 How to Use This Section The following section is structured in a manner such that the medical air system for a project may be established and executed in a sound and simple progression. Examples are given whenever possible. The basic milestones in designing the medical air system are as follows: • Definitions – Definitions are provided in the glossary section which contains terminologies which may be frequently utilized within the Medical Air Systems section.
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6.3 Steps to Implementing the Medical Air Systems 6.3.1 Discovery 1. Should existing equipment be incorporated along with the medical air system, determine the dimensions, type, capacity and current loading of the existing equipment. Ensure the existing equipment is compatible with the current standard. 2. Verify the number and type of all occupancies in the facility which will require medical air outlets. 3.
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. Determine a routing for the intake piping and note it on the building drawings. Piping downstream of the compressor shall be routed in a manner such that it is not subjected to temperatures lower than 40o F (4oC). 6. Ensure the intended location for the air plant is adequately ventilated or is at minimum air conditioned. The plant will emancipate a considerable amount of heat into the surroundings.
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Figure 2 NFPA Method - Medical Air Flow Calculation Please refer to the table below to obtain an average flow that is required within the facility. This chart is also available at www.amico.com. Medical Air Location of Outlets Anesthetizing Locations 1. Special surgery and cardiovascular 2. Major surgery and orthopedic 3. Minor surgery 4. Emergency surgery 5. Radiology 6. Cardiac catheterization 7. Ventilators 8.
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. EEG and EKG 8. Birthing and LDRP 9. Patient isolation room 50 50 0 0 0.00 0.00 25 0 0.00 1.5 10 0 0.00 1.5 10 0 0.00 1.5 0 0.00 1 10 10 25 100 10 1 50 0 0 0 0 0 1 10 0 0.00 0.00 0.00 0.00 0.00 0.00 1 1 0.5 Other Patient Rooms 1. Anesthesia workroom 2. Respirator care workroom 3. Nursery workroom 4. Equipment repair 5. Med. Laboratory 3 6. Autopsy 7. Sterile supply 8. Plaster room 9. Pharmacy 1.5 1.5 1 0.
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Figure 3: Altitude Compensation Chart Altitude Multiplier Used for Required SCFM(Hg) Sea Level 1.00 1000 ft. (305 m) 1.01 2000 ft. (609 m) 1.03 3000 ft. (900 m) 1.05 4000 ft. (1219m) 1.06 5000 ft. (1525 m) 1.08 6000 ft. (1828 m) 1.10 7000 ft. (2133 m) 1.12 8000 ft. (2438 m) 1.15 9000 ft. (2743 m) 1.17 10,000 ft. (3048 m) 1.19 6.3.
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6.3.7 General Layout 1. Place the plant in scale on the plan drawings in the designated location. Ensure that the plant has sufficient space on all sides for maintenance access and proper ventilation. Amico Source recommends 2 ft. (24”) minimum clearance on all sides, 3 ft (36”) in front of the control panel, but it is sometimes possible to reduce this clearance with exact knowledge of maintenance access requirements. Consult your Local Amico Source representative if circumstances allow for less space.
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6.3.9 Technology Comparison Chart Amico Source offers several technologies for medical air, each of which has its own advantages and drawbacks. This page summarizes these as an aid in the selection of the correct technology for your specific application.
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6.4 Medical Air Systems Glossary Definitions ACFM • Actual Cubic Feet per Minute is an expression of actual air volume, generally corrected for and reference to a particular pressure. ICFM • Conditions at the inlet of the compressor prior to any restrictions or temperature changes. (i.e., inlet filters, inter-coolers, discharge manifolds etc). Continuous Duty • Operational reference to compressors operating 24 hours a day, continuously.
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6.4.1 Summary of NFPA 99 Specification (Air Compressors System) PART 1 – GENERAL (Medical Air) RELATED DOCUMENTS: Drawings and general provisions of the Contract, including general and supplementary conditions and Division I specification section, apply to this section. SUMMARY EXTENT OF WORK A.
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OR if Owner will retain Verifier, use this paragraph; G. Coordinate with owner retained verifier for final verification of the systems. Make corrections as needed, including additional testing if necessary to illustrate full and unqualified certification. COORDINATION A. Medical Gas Contractor shall coordinate with other trades to ensure timely installations and evade conflicts and interference. B.
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vi. Air filters including type and replacement element. vii. Pressure regulators including type and manufacturer. viii. Dew point monitor including technology employed, calibration interval, and annual drift in degrees. ix. Carbon monoxide monitor including technology employed, calibration interval, and annual drift in ppm. x. Air dryers, type, manufacturer, and design dew point at least -40˚F (-40˚C) at 100 psig (689 kPa). xi.
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3. Statement declaring that the MGEM has no fiduciary interest in the verifier and that the verifier is not an agent or representative of the MGEM. 4. Statement declaring that the installing contractor has no fiduciary interest in the verifier and that the verifier has no fiduciary interest in the contractor. C. Pre-approval 1. Written preapproval is required for equipment not exactly matching specifications.
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D. 3. Warranties shall include on site repairs including travel, labor and parts. 4. Shipping and installation costs after the first 12 months will be borne by the customer. Verification: 1. Medical Gas Contractor shall deliver to the owner a complete system certification. PART 2 - PRODUCTS QUALIFICATION OF MANUFACTURER(S) A.
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6. A. All air systems will be equipped with a CO monitor. The monitor will have an alarm to: i) Alarm if the level of CO exceeds 10 parts per million by volume (ppmv) and ii) Alarm and system shutdown. Air Compressors Specifier: select the paragraph below reflecting the preferred technology: SCROLL COMPRESSORS 1. The compressors shall be a continuous duty rated scroll type with sealed bearings.
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3. All required type “K” copper tubing or brass pipe to interconnect all compressor set components, with unions for ease of servicing. 4. Compressor motors shall be a NEMA rated, open drip proof unit with 1.15 service factor suitable for _______ Volt, ____ Phase, ___Hz. B. 5. All moving parts (fans, pulleys and belts) shall be fully protected by an OSHA approved enclosure. 6. All support structures shall be a minimum of 10 Gauge Steel.
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e. Consideration shall be given to the potential effect of prevailing winds and possible sources of airborne contamination and potential obstruction by accumulated snow. f. Piping downstream of the compressor shall be routed in such a way that it is not subjected to a temperature lower than 40˚F (4˚C). g. Compressor intake piping shall be made of materials approved for vacuum piping compliant with the latest NFPA 99 edition.
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3. g. Visual/audible indications with isolated voltage free contacts for all alarm. h. Event log recording of alarms and system activity. i. Event log recording of service warnings and service history. j. Trend graphs for compression level, compressor operations, and ambient temperature . k. Adjustable settings to accommodate user needs. Panel designed with selectable options to fully match applications. a.
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E. Air Treatment Centre Provide redundant medical air treatment systems including desiccant dryers, filters, and purifiers sized for peak calculated demand. Dew point and carbon monoxide monitoring Medical Air Treatment shall include: 1. Desiccant dryers producing a -40˚F (-40˚C) pressure dew point. 2. Dryer purge flow control through an integral dew point based purge control system. Purge controllers using desiccant temperature are not acceptable.
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6.5 Quick Guide to Configuration Modular Stacking Configuration New “A-Frame”, modular stacking configuration allows two compressors to run simultaneously with smaller footprint and compact design. Compressor assemblies include at least one compressor and one motor. Horizontal Tank Mount The compressors are mounted on a horizontal tank which is large enough to accommodate bigger compressors and accessories than the Space Saver.
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6.6 Medical Air System Inlet Below is a summary of the requirements for the medical air system inlet locations. 1. Locate the medical air inlet in an area where there will not be potential hazards such as contamination from engine exhausts, fuel storage vents; toxins or hazardous contaminants, such as ethylene oxide (ETO) gas exhaust vents, medical vacuum exhaust vents, particulate matter or odor of any type. 2.
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Figure 4. Medical Air Compressor System Intake Pipe Sizing Unit Flow Basis SCFM@50 PSI (LPM@345kPa) Nominal Pipe Size Allowable Equivalent Run (Feet) 1.0” 1.25” 1.5” 2.0” 2.5” 3.0” 4.0” 5.0” 6.0” Duplex 1 Hp 5.0 (141.6) 68 200 500 2000 Duplex 2 Hp 12.2 (345.5) 22 65 180 650 1800 Duplex 3 Hp 18.4 (521) 30 70 290 850 2200 Duplex 5 Hp 30.2 (855) 12 30 120 360 890 Duplex 7.5 Hp 44.2 (1252) 10 60 180 450 Duplex 10 Hp Triplex 7.5 Hp 66.
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Figure 5: Example 1 Calculating SCFM After interviewing the hospital engineer, you find that the facility; which is located 2,000 feet above sea level, has 5 minor Operating Rooms, 6 ICU Ventilators, 18 ICU Beds, and 12 Recovery beds. They also want to have a 25% future expansion. Calculate the total PCL for the facilities Medical Air system. Area Minor Surgery ICU Ventilators ICU 3 ICU 3 Quantity 5 Rooms 6 Units 12 beds 3 12 beds x x x x Design Flow 0.5 3.
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Oil Less SCROLL AIR WITH DESICCANT AIR TREATMENT Air Compressor System • Meets or exceeds the requirements of the latest edition of NFPA 99 • Package shall include: - Oil-Less Scroll Air Compressors - Dual Desiccant Air Dryer - One Receiver that complies to Section VIII, Unfired Pressure Vessels of the ASME Boiler and Pressure Vessel Code - One Touch Screen Control Panel • All components shall be completely pre-piped and pre-wired to single-point service connections • The only field connections required w
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Control Panel • UL listed control panel in a NEMA 12 enclosure with a 5.7” Touch Screen Display • Only panel components that are commercially available and not of propriety design will be considered • Our compressors include the following accessories: - Temperature sensor at each discharge port of the compressor with numerical display - Externally operable circuit breakers with door interlock per compressor - Control circuit transformers with fused primary and secondary circuit breakers - WinCE 5.
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Dryer/Filter/Regulator System • An integral air treatment system with purge saving feature, NFPA 99 system safety valves • The quality of air provided shall meet or exceed the following when – 1: 2001 validated in accordance with the requirements of ISO 12500-1 and includes 3rd PARTY VALIDATION PERFORAMNCE 1. Maximum remaining oil content 0.01 mg/m3 at 70ºF (21ºC). 2. Particulate removal to 0.01 micron. 3. Dew point [-4ºF medical breathing air applications or -100ºF laboratory applications]. 4.
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                                                          
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28 Amico Source Equipment                                                              
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                                                       
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30 Amico Source Equipment                                                       
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Oil Less RECIPROCATING AIR WITH DESICCANT AIR TREATMENT Air Compressor System • Meets or exceeds the requirements of the latest edition of NFPA 99 • Package shall include: - Oil-Less Reciprocating Air Compressors - Dual Desiccant Air Dryer - One Receiver Compliant with Section VIII, Unfired Pressure Vessels of the ASME Boiler and Pressure Vessel Code - One Touch Screen Control Panel • All components shall be completely pre-piped and pre-wired to single-point service connections • The only field connection
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Control Panel • UL listed control panel in a NEMA 12 enclosure with a 5.7” Touch Screen Display • Only panel components that are commercially available and not of propriety design will be considered • Our compressors include the following accessories: - Temperature sensor at each discharge port of the compressor with numerical display - Externally operable circuit breaker with door interlock per compressor - Control circuit transformer with fused primary and secondary circuit breakers - WinCE 5.
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Dryer/Filter/Regulator System • An integral air treatment system with purge saving feature, NFPA 99 after-filters, pressure regulator valves, dew point monitor, CO monitor and system safety valves • The 1: 2001 validated in accordance with the requirements of ISO 12500-1 and includes 3rd PARTY VALIDATION PERFORAMNCE 1. Maximum remaining oil content 0.01 mg/m3 at 70ºF (21ºC). 2. Particulate removal to 0.01 micron. 3. Dew point [-4ºF medical breathing air applications or -100ºF laboratory applications]. 4.
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34 Amico Source Equipment                                                      
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                                                                   
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36 Amico Source Equipment                                                               
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                                                                   
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www.amico.com Amico Source Equipment | www.amico.com 85 Fulton Way, Richmond Hill Ontario, L4B 2N4, Canada Toll Free Tel: 1.877.462.6426 Tel: 905.764.0800 Fax: 905.764.0862 Email: info@amico.