Crawford p e william (34 resultados)

hardcover. Condición: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Paperback. Condición: Fine. First Edition. Starmont House 1988 1st ed. 169pp Fine copy. See photos clph. Stephen E. Fabian (ilustrador).

Soft cover. Condición: Very Good. ORIGINAL PUBLICATION; Softcover; ex-corporate library; in very good condition. Book.

Hardcover. Condición: Good. First Edition. Hardcover. No DJ. Ex-College Library with usual library stamping/filing sticker on spine and card folder on inside cover. Pages are clean and unmarked. Covers show light edge wear. Binding is tight, hinges strong.; 100% Satisfaction Guaranteed! Ships same or next business day.…

Paperback. Condición: Near Fine. First Edition. This copy has been signed by Darrell Schweitzer on the title page. Near Fine copy with some light upper corner creasing. See photos bx108E. Stephen E. Fabian (ilustrador).

Soft cover. Condición: Good. 1st Edition. Edge and corner wear with some chipping; no interior markings. Cover art by Alva Rogers. This anthology contains: The Garden of Fear by Robert E. Howard; Celephais by H. P. Lovecraft; The Golden Bough by David H. Keller; The Man with the Hour Glass by Lloyd Arthur Eshbach; and Mars Colonizes by Miles J. Breuer. Size: 12mo. Alva Rogers; (ilustrador). Book.…

Condición: New.

Hardcover. Condición: Fine. Estado de la sobrecubierta: Fine. 1st Edition. 1st ed., 2nd printing ; ix, 310 pages ; 24 cm ISBN 9780760739549, 0760739544 OCLC 54409153 ; brown abd maroon cloth in color illustrated dustjacket ; Visions of Ghost Armies introduces you to a side of war you might never have imagined possible. In more than one hundred true stories--reported by eyewitnesses and sometimes verified by the media--you will read eerie and haunting accounts of spirit soldiers and armies of the night who still fight battles decades to centuries after their wars have ended. ; "From the files of FATE magazine." ; FINE/FINE. Book.…

Condición: As New. Unread book in perfect condition.

Condición: New.

Condición: As New. Unread book in perfect condition.

Hardcover. Condición: New.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Paperback. Condición: new. Paperback. Air conditioning work and commercial refrigeration share the same cycle, the same refrigerants and the same gauges. Everything else is different: the operating temperatures, the duty cycle, the controls standing between the thermostat and the compressor, the necessity of defrost, and the cost of being wrong. A comfort system that underperforms makes a building uncomfortable. A refrigeration system that underperforms destroys inventory overnight, quietly, while nobody is watching the box temperature. The system is also tightly coupled, which is what makes it hard. An undercharge and a restricted liquid line both read low on suction. Worn compressor valves and a fouled condenser both run hot. Reading one measurement in isolation produces confident, wrong conclusions. But because the effects propagate predictably, a small set of readings taken together forms a signature, and different faults produce different signatures.That is what this handbook teaches.Read suction pressure, discharge pressure, superheat and subcooling as one coupled pattern, not four separate numbersPredict what a healthy system should read under the current load and ambient, then measure against your predictionSeparate faults that share a symptom using compression ratio, condenser split and evaporator temperature differenceSet superheat on a zeotropic blend, where glide changes what the pressure is telling youTrace a fault through a live ladder circuit, series safeties and parallel operating controlsEvacuate to a genuine vacuum, confirm it with a decay test, and charge by the method the system calls forCalculate transmission, infiltration and product load, then reconcile it with what the system is actually doingSixteen chapters run from cycle thermodynamics and refrigerant properties through compressors, condensers, evaporators, metering devices, piping and oil return, electrical fundamentals, motors and drives, control circuits, defrost and safety controls, load calculation, service practice, systematic troubleshooting and commissioning. Each states its objectives, derives the theory step by step, and closes with worked examples and verified practice problems. Six appendices carry conversions, an equation reference, the field reading set, diagnostic quick-reference tables and blank service forms.Written for air conditioning technicians moving into commercial refrigeration, along with apprentices, journeymen, service contractors, facility maintenance staff and HVACR students working on walk-ins, reach-ins, display cases and rack systems. Open it at the troubleshooting chapter on your next call and work the reading set before you touch a component. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Do inverter mini split systems become difficult to diagnose when sensors, circuit boards, communication signals, variable-speed compressors, and fault codes are involved? Do you want to understand how the indoor unit, outdoor unit, inverter drive, sensors, controls, compressor, and refrigerant circuit work together in a real ductless HVAC system? Inverter Mini Split Operation and Service Procedures Handbook is a practical field guide for technicians, installers, maintenance professionals, HVAC students, and anyone developing skills in modern ductless HVAC systems. It connects the technical principles of inverter technology with practical installation, operation, troubleshooting, repair, and maintenance.Inside This Handbook, You Will Learn How To: Understand inverter mini split operation and how it differs from conventional fixed-speed systemsIdentify major indoor and outdoor components, system configurations, and installation considerationsUnderstand compressors, inverter drives, sensors, fan motors, expansion devices, reversing valves, and control boardsFollow electrical operation, including power supply, rectification, DC bus operation, and inverter-controlled compressor speedUnderstand control logic, communication signals, sensor feedback, protection functions, and system responsesFollow refrigerant flow during cooling, heating, and defrost operationRelate pressure, temperature, superheat, subcooling, and system performanceUnderstand startup, compressor modulation, fan control, defrost, protective functions, and shutdown sequencesTroubleshoot electrical, refrigerant, communication, control, airflow, drainage, and performance problemsPerform practical inspection, testing, repair, commissioning, and preventive maintenance proceduresA Practical Field Guide for HVAC TechniciansThis handbook brings refrigeration, electrical systems, electronics, control logic, diagnostics, repair, and maintenance together in one practical reference.Instead of simply identifying individual components, you will learn how the different parts interact and how to approach system problems logically. Whether you are building your HVAC foundation, improving installation skills, performing service work, or strengthening your diagnostic ability, this guide provides practical knowledge you can apply in the field.Build your understanding of modern inverter mini split systems and develop a more systematic approach to installation, troubleshooting, repair, and maintenance. Get your copy today and take your inverter mini split knowledge to the next level. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. …

Paperback. Condición: new. Paperback. Stop Guessing at the GaugesRefrigeration defeats capable people in one repeatable way. They learn the components in isolation, they learn the procedures as recipes, and they never assemble the two into a picture of the system as one connected loop. Then a machine misbehaves in a way the recipe never covered, and there is nothing left to reason from. A Suction Pressure Is Not a Number on a ChartIt is a saturation temperature, which is a heat transfer condition, which is a statement about load, airflow and charge. When that chain is invisible, sound parts get replaced, undersizing gets misread as undercharge, and the same failure returns next season. What This Handbook Gives YouThe compressor, condenser, metering device and evaporator treated as four positions on one continuous circuit - followed from thermodynamic first principles all the way to a reading at a service port. Every equation defines its variables and units. Every worked example is solved in full, assumptions first, units tracked at every step. You Will Be Able ToRead superheat and subcooling together to separate undercharge, restriction, airflow and compressor faultsPlot a real cycle from field measurements and read its distortions as evidenceSplit a load into sensible and latent halves, then size ducts and select equipment that handle bothDesign piping for pressure drop, velocity and oil return, then evacuate, charge and verify the chargeCommission a system properly, from pre-functional checks through balancing to documented handoverWork with mildly flammable refrigerants where they change charge limits, piping and service practiceConfirm a diagnosis before acting, and find the root cause instead of the failed partBuilt to Be Used, Not Just ReadSixteen chapters, each with learning objectives, stated prerequisites, worked examples and verified practice problems. Five appendices, including a diagnostic quick reference and site-ready installation and commissioning checklists. One consistent notation set, a glossary and a list of symbols. Inch-pound units primary, written to United States practice. Written ForDesign and application engineers, service engineers, senior technicians, facilities engineers, instructors, and upper-level students with an introductory thermodynamics background.Turn measurements into deductions. Open this handbook and start reading systems the way they actually behave. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Paperback. Condición: new. Paperback. Air conditioning work and commercial refrigeration share the same cycle, the same refrigerants and the same gauges. Everything else is different: the operating temperatures, the duty cycle, the controls standing between the thermostat and the compressor, the necessity of defrost, and the cost of being wrong. A comfort system that underperforms makes a building uncomfortable. A refrigeration system that underperforms destroys inventory overnight, quietly, while nobody is watching the box temperature. The system is also tightly coupled, which is what makes it hard. An undercharge and a restricted liquid line both read low on suction. Worn compressor valves and a fouled condenser both run hot. Reading one measurement in isolation produces confident, wrong conclusions. But because the effects propagate predictably, a small set of readings taken together forms a signature, and different faults produce different signatures.That is what this handbook teaches.Read suction pressure, discharge pressure, superheat and subcooling as one coupled pattern, not four separate numbersPredict what a healthy system should read under the current load and ambient, then measure against your predictionSeparate faults that share a symptom using compression ratio, condenser split and evaporator temperature differenceSet superheat on a zeotropic blend, where glide changes what the pressure is telling youTrace a fault through a live ladder circuit, series safeties and parallel operating controlsEvacuate to a genuine vacuum, confirm it with a decay test, and charge by the method the system calls forCalculate transmission, infiltration and product load, then reconcile it with what the system is actually doingSixteen chapters run from cycle thermodynamics and refrigerant properties through compressors, condensers, evaporators, metering devices, piping and oil return, electrical fundamentals, motors and drives, control circuits, defrost and safety controls, load calculation, service practice, systematic troubleshooting and commissioning. Each states its objectives, derives the theory step by step, and closes with worked examples and verified practice problems. Six appendices carry conversions, an equation reference, the field reading set, diagnostic quick-reference tables and blank service forms.Written for air conditioning technicians moving into commercial refrigeration, along with apprentices, journeymen, service contractors, facility maintenance staff and HVACR students working on walk-ins, reach-ins, display cases and rack systems. Open it at the troubleshooting chapter on your next call and work the reading set before you touch a component. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Paperback. Condición: new. Paperback. Do inverter mini split systems become difficult to diagnose when sensors, circuit boards, communication signals, variable-speed compressors, and fault codes are involved? Do you want to understand how the indoor unit, outdoor unit, inverter drive, sensors, controls, compressor, and refrigerant circuit work together in a real ductless HVAC system? Inverter Mini Split Operation and Service Procedures Handbook is a practical field guide for technicians, installers, maintenance professionals, HVAC students, and anyone developing skills in modern ductless HVAC systems. It connects the technical principles of inverter technology with practical installation, operation, troubleshooting, repair, and maintenance.Inside This Handbook, You Will Learn How To: Understand inverter mini split operation and how it differs from conventional fixed-speed systemsIdentify major indoor and outdoor components, system configurations, and installation considerationsUnderstand compressors, inverter drives, sensors, fan motors, expansion devices, reversing valves, and control boardsFollow electrical operation, including power supply, rectification, DC bus operation, and inverter-controlled compressor speedUnderstand control logic, communication signals, sensor feedback, protection functions, and system responsesFollow refrigerant flow during cooling, heating, and defrost operationRelate pressure, temperature, superheat, subcooling, and system performanceUnderstand startup, compressor modulation, fan control, defrost, protective functions, and shutdown sequencesTroubleshoot electrical, refrigerant, communication, control, airflow, drainage, and performance problemsPerform practical inspection, testing, repair, commissioning, and preventive maintenance proceduresA Practical Field Guide for HVAC TechniciansThis handbook brings refrigeration, electrical systems, electronics, control logic, diagnostics, repair, and maintenance together in one practical reference.Instead of simply identifying individual components, you will learn how the different parts interact and how to approach system problems logically. Whether you are building your HVAC foundation, improving installation skills, performing service work, or strengthening your diagnostic ability, this guide provides practical knowledge you can apply in the field.Build your understanding of modern inverter mini split systems and develop a more systematic approach to installation, troubleshooting, repair, and maintenance. Get your copy today and take your inverter mini split knowledge to the next level. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. …

Paperback. Condición: new. Paperback. Stop Guessing at the GaugesRefrigeration defeats capable people in one repeatable way. They learn the components in isolation, they learn the procedures as recipes, and they never assemble the two into a picture of the system as one connected loop. Then a machine misbehaves in a way the recipe never covered, and there is nothing left to reason from. A Suction Pressure Is Not a Number on a ChartIt is a saturation temperature, which is a heat transfer condition, which is a statement about load, airflow and charge. When that chain is invisible, sound parts get replaced, undersizing gets misread as undercharge, and the same failure returns next season. What This Handbook Gives YouThe compressor, condenser, metering device and evaporator treated as four positions on one continuous circuit - followed from thermodynamic first principles all the way to a reading at a service port. Every equation defines its variables and units. Every worked example is solved in full, assumptions first, units tracked at every step. You Will Be Able ToRead superheat and subcooling together to separate undercharge, restriction, airflow and compressor faultsPlot a real cycle from field measurements and read its distortions as evidenceSplit a load into sensible and latent halves, then size ducts and select equipment that handle bothDesign piping for pressure drop, velocity and oil return, then evacuate, charge and verify the chargeCommission a system properly, from pre-functional checks through balancing to documented handoverWork with mildly flammable refrigerants where they change charge limits, piping and service practiceConfirm a diagnosis before acting, and find the root cause instead of the failed partBuilt to Be Used, Not Just ReadSixteen chapters, each with learning objectives, stated prerequisites, worked examples and verified practice problems. Five appendices, including a diagnostic quick reference and site-ready installation and commissioning checklists. One consistent notation set, a glossary and a list of symbols. Inch-pound units primary, written to United States practice. Written ForDesign and application engineers, service engineers, senior technicians, facilities engineers, instructors, and upper-level students with an introductory thermodynamics background.Turn measurements into deductions. Open this handbook and start reading systems the way they actually behave. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Paperback. Condición: new. Paperback. The Field Reference for Managers Who Manage Engineers, and Were Never Taught MEP.A ceiling conflict caught on a drawing costs a redline. The same conflict caught after ductwork, sprinkler mains, and cable tray are already installed costs three trades, two weeks, and a change order.Most construction managers are never formally taught mechanical, electrical, and plumbing systems. They are still held responsible for them: the submittals, the coordination meetings, the inspections, the budget. The gap is not engineering knowledge. It is the ability to read what the engineer designed, recognise what the subcontractor is actually installing, and see a conflict coming before it is built.This handbook closes that gap. It builds coordination judgment, not design capability. Equations appear only where a construction manager genuinely needs to sanity-check a submitted number.Read mechanical, electrical, plumbing, fire protection, and controls drawings with confidenceTrace an air-side system from unit to diffuser, and a one-line diagram from service to branch panelRecognise the field defects that most often fail an inspection, and prepare for the walkthroughSequence rough-in across trades so systems can be installed in the order their geometry requiresRun coordination and clash detection meetings that resolve conflicts instead of logging themEvaluate cost proposals and challenge a change order on technical groundsKnow when a field question is yours to answer and when it must go to the engineer of recordTwenty-one chapters, in three parts. Part I: reading drawings, specifications, and submittals, and handling site utilities before they set the schedule. Part II: HVAC, power distribution, emergency and standby systems, plumbing, fire protection, building automation, and specialty scope including elevators and low-voltage systems. Part III: coordination and clash detection, trade sequencing, commissioning, inspections and permitting, change orders and cost control, closeout and warranty, and the energy trends reshaping design.Every chapter opens with learning objectives and closes with practice problems that test judgment rather than calculation. Case applications trace real failures back to the decision that caused them.For construction managers, project managers, superintendents, field engineers, owner's representatives, and construction management students responsible for MEP scope without an engineering background.Stop being surprised by MEP scope. Open the book and start reading the job the way the coordination meeting demands. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. …

Paperback. Condición: new. Paperback. The drawings were complete. The submittals were approved. The equipment arrived on time. And the building still does not work.A duct sealed to the wrong pressure class. A trap vented in a way that empties it. Four trades in one ceiling cavity until one of them becomes uninstallable. Each looks acceptable the day it goes in, and declares itself months later, after the ceiling is closed and the cost of correction has multiplied.Design literature explains sizing. Code documents and installation manuals are authoritative within narrow lanes. Between them sits the work that decides whether a building functions: turning drawings into installed, tested, operating systems. That territory belongs to the site engineer, and it has been documented far less thoroughly than it deserves.What You Will Be Able to DoRead a drawing set for what it requires, not what it appears to showJudge whether a submitted product genuinely satisfies the specificationResolve trade conflict using clearance envelopes and tolerance accumulationDiagnose a starved terminal, a cavitating pump or a broken trap seal from field evidenceVerify sprinkler spacing, working space, voltage drop, grounding and energisation readinessRead a balancing report critically and recognise what must be true before a system is completeBuilt for the JobsiteLearning objectives open every chapter and worked examples show every step and unit. Practice problems carry a consolidated answer key, and the appendices hold inspection checklists by system, unit conversions, a glossary and a full symbol list. Where a requirement is governed by an adopted code, you are directed to the edition in force on your project. Who It Is Written ForSite and field engineers, superintendents, building services coordinators, quality control and commissioning personnel, inspectors, and engineering graduates entering their first field assignment.Open it before your next above-ceiling walk, and start reading installed work the way an engineer who knows what to look for reads it. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…