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RSES MEMBER / SUBSCRIBER LOGIN RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions. EPA SECTION 609 CERTIFICATION EPA Section 609 Certification. Section 609 of the Federal Clean Air Act requires technicians who service motor vehicle air conditioning “MVAC” systems to be certified. Servicing motor vehicle air conditioning includes repairing, leak testing, and topping off of air conditioning systems low on refrigerant as well as any other repair tothe
LOW GWP/A2L
Low GWP/A2L. As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightlyflammable.
TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS FIELD REPAIR OF ALUMINUM REFRIGERATION COILS … FIELD REPAIR OF ALUMINUM REFRIGERATION COILS INTRODUCTION 8- VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
HOW TO DIAGNOSE AND CORRECT REVERSING VALVE … Service Application Manual SAM Chapter 620-87 Section 18 HOW TO DIAGNOSE AND CORRECT REVERSING VALVE PROBLEMS Ranco Controls The reversing valve is the same in either case. BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
RSES MEMBER / SUBSCRIBER LOGIN RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions. EPA SECTION 609 CERTIFICATION EPA Section 609 Certification. Section 609 of the Federal Clean Air Act requires technicians who service motor vehicle air conditioning “MVAC” systems to be certified. Servicing motor vehicle air conditioning includes repairing, leak testing, and topping off of air conditioning systems low on refrigerant as well as any other repair tothe
LOW GWP/A2L
Low GWP/A2L. As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightlyflammable.
TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS FIELD REPAIR OF ALUMINUM REFRIGERATION COILS … FIELD REPAIR OF ALUMINUM REFRIGERATION COILS INTRODUCTION 8- VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
HOW TO DIAGNOSE AND CORRECT REVERSING VALVE … Service Application Manual SAM Chapter 620-87 Section 18 HOW TO DIAGNOSE AND CORRECT REVERSING VALVE PROBLEMS Ranco Controls The reversing valve is the same in either case. BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
HYDROCARBON TRAINING PROGRAM As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. FUNDAMENTALS OF CO2 REFRIGERATION CO 2 14 RSES Journal JANUARY 2020 www.rsesjournal.c om Understanding CO 2’s unique properties and system operation F or most refrigeration contractors and service technicians in the U.S., working with CO 2-based refrigeration is still largely an abstract SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
ELECTRONICALLY COMMUTATED MOTORS PART 1: HISTORY AND The unique features, programmability, and wide range of operation come from the motor control. The motor (described in detail in the nextparagraph)
VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
SYSTEM EVACUATION
w w w . r s e s j o u r n a l . c o m SEPTEMBER 2012 RSES Journal 13 Circle Reader Service No. 25 the entire system by purging with a dry gas, such as dry nitrogen, from the liquid side to UNDERSTANDING ELECTRICAL SCHEMATICS 6 1 1 1 3 3 2 blk blu wht yel 115 v trsf-2 trsf-2 gv-1 24 v cb-2 3 a ign pcb vio vio vio t1 t2 t2 trsf-2 c2 ign-1 ign-2 c n/o n/c ls gv-1 gvr-1 csa rs-1 afs-1 ign-1 ign-1 ign BEST PRACTICES: PULLING A DEEP VACUUM 10 RSES Journal JULY 2017 www.rsesjournal.com A ROOM WITH A LEAK Pulling a DEEP VACUUM A three-part series acquainting technicians with system evacuation best HOW TO DIAGNOSE AND CORRECT REVERSING VALVE PROBLEMS Service Application Manual SAM Chapter 620-87 Section 18 HOW TO DIAGNOSE AND CORRECT REVERSING VALVE PROBLEMS Ranco Controls The reversing valve is the same in either case. SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. EPA SECTION 609 CERTIFICATION EPA Section 609 Certification. Section 609 of the Federal Clean Air Act requires technicians who service motor vehicle air conditioning “MVAC” systems to be certified. Servicing motor vehicle air conditioning includes repairing, leak testing, and topping off of air conditioning systems low on refrigerant as well as any other repair tothe
BALANCING COMFORT AND TECHNOLOGY WITH RESIDENTIAL Thermostat accuracy equates to comfort. Thermostat accuracy also is known as operating differential which is the difference between the cut-in and cut-out points as measured at the thermostat under specified operating conditions. In NEMA testing, different heating-/cooling-load conditions are applied to measuredifferential.
UNDERSTANDING SUPERHEAT 16 RSES Journal JUNE 2010 w w w . r s e s j o u r n a l . c o m ration temperatures than water, and provide operating pres-sures desirable for compressor efficiency. REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR 26- CALCULATING COMBUSTION AIR FOR FUEL-BURNING APPLIANCES • Perform a combustion analysis, spillage, and a draft test with the structure in the worst-case depressurized condition. This worst-case depressurization of a structure is the where SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
FIELD REPAIR OF ALUMINUM REFRIGERATION COILS … FIELD REPAIR OF ALUMINUM REFRIGERATION COILS INTRODUCTION 8- SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. EPA SECTION 609 CERTIFICATION EPA Section 609 Certification. Section 609 of the Federal Clean Air Act requires technicians who service motor vehicle air conditioning “MVAC” systems to be certified. Servicing motor vehicle air conditioning includes repairing, leak testing, and topping off of air conditioning systems low on refrigerant as well as any other repair tothe
BALANCING COMFORT AND TECHNOLOGY WITH RESIDENTIAL Thermostat accuracy equates to comfort. Thermostat accuracy also is known as operating differential which is the difference between the cut-in and cut-out points as measured at the thermostat under specified operating conditions. In NEMA testing, different heating-/cooling-load conditions are applied to measuredifferential.
UNDERSTANDING SUPERHEAT 16 RSES Journal JUNE 2010 w w w . r s e s j o u r n a l . c o m ration temperatures than water, and provide operating pres-sures desirable for compressor efficiency. REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR 26- CALCULATING COMBUSTION AIR FOR FUEL-BURNING APPLIANCES • Perform a combustion analysis, spillage, and a draft test with the structure in the worst-case depressurized condition. This worst-case depressurization of a structure is the where SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
FIELD REPAIR OF ALUMINUM REFRIGERATION COILS … FIELD REPAIR OF ALUMINUM REFRIGERATION COILS INTRODUCTION 8- EPA SECTION 609 CERTIFICATION As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. HYDROCARBON TRAINING PROGRAM As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. BALANCING COMFORT AND TECHNOLOGY WITH RESIDENTIAL Thermostat accuracy equates to comfort. Thermostat accuracy also is known as operating differential which is the difference between the cut-in and cut-out points as measured at the thermostat under specified operating conditions. In NEMA testing, different heating-/cooling-load conditions are applied to measuredifferential.
LOW GWP/A2L
Low GWP/A2L. As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightlyflammable.
UNDERSTANDING SUPERHEAT 16 RSES Journal JUNE 2010 w w w . r s e s j o u r n a l . c o m ration temperatures than water, and provide operating pres-sures desirable for compressor efficiency. Why is it necessary to understand superheat GAS HEATING VENTING TABLES Service Application Manual SAM Chapter 630-131 Section 12 GAS HEATING VENTING TABLES Used by permission of the copyright holder, AmericanGas Association
VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
USING UVC TO CONTROL MICROBIAL CONTAMINATION Using UVC to Control Microbial Contamination BY WILLIAM J. PARLAPIANO JR. T here are three potential categories of airborne offenders thatimpact IAQ -
SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
EPA SECTION 609 CERTIFICATION EPA Section 609 Certification. Section 609 of the Federal Clean Air Act requires technicians who service motor vehicle air conditioning “MVAC” systems to be certified. Servicing motor vehicle air conditioning includes repairing, leak testing, and topping off of air conditioning systems low on refrigerant as well as any other repair tothe
608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions.LOW GWP/A2L
Low GWP/A2L. As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightlyflammable.
UNDERSTANDING REFRIGERANT TABLES INTRODUCTION A Mollier diagram is a graphical representation of the properties of a refrigerant, generally in terms of enthalpy and entropy. A familiarity with SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
PRINCIPLES OF REFRIGERATION Service Application Manual SAM Chapter 620-05 Section 01 PRINCIPLES OF REFRIGERATION — PART 1 By: Paul Reed THE ELEMENTS Everything in, on, or around the earth, sun, moon and stars, including our bodies themselves, is made up TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS PLOTTING THE A/C CYCLE ON A PRESSURE-ENTHALPY … 4 0 –20 20 40 60 80 100 110 120 130 140 160 180 5000 1000 600 400 300 200 245.7 87.7 100 60 40 20 10 1.0 Enthalpy, B tu/lb Pressure, psia l iquid ated liquid VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
608 EXAM RESULTS
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. EPA SECTION 609 CERTIFICATION As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow.LOW GWP/A2L
Low GWP/A2L. As the HVACR industry continues to move forward and innovate, the refrigerants that were once so commonplace are now being phased out. Replacing them are more energy efficient, environmentally friendlier refrigerants, known as Low GWP refrigerants. Many of these new refrigerants are classified by ASHRAE as A2L, or slightlyflammable.
TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS UNDERSTANDING REFRIGERANT TABLES INTRODUCTION A Mollier diagram is a graphical representation of the properties of a refrigerant, generally in terms of enthalpy and entropy. A familiarity with SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
PRINCIPLES OF REFRIGERATION Service Application Manual SAM Chapter 620-05 Section 01 PRINCIPLES OF REFRIGERATION — PART 1 By: Paul Reed THE ELEMENTS Everything in, on, or around the earth, sun, moon and stars, including our bodies themselves, is made up PLOTTING THE A/C CYCLE ON A PRESSURE-ENTHALPY … 4 0 –20 20 40 60 80 100 110 120 130 140 160 180 5000 1000 600 400 300 200 245.7 87.7 100 60 40 20 10 1.0 Enthalpy, B tu/lb Pressure, psia l iquid ated liquid VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
BALANCING COMFORT AND TECHNOLOGY WITH RESIDENTIAL Thermostat accuracy equates to comfort. Thermostat accuracy also is known as operating differential which is the difference between the cut-in and cut-out points as measured at the thermostat under specified operating conditions. In NEMA testing, different heating-/cooling-load conditions are applied to measuredifferential.
SYSTEM EVACUATION
w w w . r s e s j o u r n a l . c o m SEPTEMBER 2012 RSES Journal 13 Circle Reader Service No. 25 the entire system by purging with a dry gas, such as dry nitrogen, from the liquid side toTROUBLESHOOTING VRF
Maintaining and Troubleshooting VRF Systems BY BRIAN DERRY, MITSUBISHI ELECTRIC TRANE HVAC US W hen you service and troubleshoot vari-ablerefrigerant ˜ ow
BEST PRACTICES: PULLING A DEEP VACUUM 10 RSES Journal JULY 2017 www.rsesjournal.com A ROOM WITH A LEAK Pulling a DEEP VACUUM A three-part series acquainting technicians with system evacuation best VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
UNDERSTANDING ELECTRICAL SCHEMATICS 6 1 1 1 3 3 2 blk blu wht yel 115 v trsf-2 trsf-2 gv-1 24 v cb-2 3 a ign pcb vio vio vio t1 t2 t2 trsf-2 c2 ign-1 ign-2 c n/o n/c ls gv-1 gvr-1 csa rs-1 afs-1 ign-1 ign-1 ign PLOTTING THE A/C CYCLE ON A PRESSURE-ENTHALPY … 4 0 –20 20 40 60 80 100 110 120 130 140 160 180 5000 1000 600 400 300 200 245.7 87.7 100 60 40 20 10 1.0 Enthalpy, B tu/lb Pressure, psia l iquid ated liquid IDENTIFYING REFRIGERATION PROBLEMS USING SUPERHEAT AND Identifying Refrigeration Problems Using Superheat and Subcooling Understanding superheat and subcooling, and knowing how to correctly measure them can help you with HOW TO DIAGNOSE AND CORRECT REVERSING VALVE … Service Application Manual SAM Chapter 620-87 Section 18 HOW TO DIAGNOSE AND CORRECT REVERSING VALVE PROBLEMS Ranco Controls The reversing valve is the same in either case.REFRIGERANT 410A
R-22. Its higher cooling capacity permits smaller, more compact units to be used. Because of the significantly higher pressures associ-ated with R-410A, a typical compressor designed for SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. FUNDAMENTALS OF CO2 REFRIGERATION CO 2 14 RSES Journal JANUARY 2020 www.rsesjournal.c om Understanding CO 2’s unique properties and system operation F or most refrigeration contractors and service technicians in the U.S., working with CO 2-based refrigeration is still largely an abstract REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR 26- TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS PRINCIPLES OF REFRIGERATION Service Application Manual SAM Chapter 620-05 Section 01 PRINCIPLES OF REFRIGERATION — PART 1 By: Paul Reed THE ELEMENTS Everything in, on, or around the earth, sun, moon and stars, including our bodies themselves, is made up SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
SOCIETY & INDUSTRY NEWS Society & Industry News. The world of refrigerants, as we know it, is changing once again. Regulatory drivers and increasing efficiency demands are helping to shape the course of our industry. When the humidity (water vapor) content of air entering a cooling coil is elevated, the temperature drop of air across that cooling coil is lessthan
608 EXAM RESULTS
608 Exam Results. If you are unable to view your certification record, your test score might not have posted yet or you do not hold your certification through RSES. You may also wish to double-check the information you entered and try again. Please call 800/297-5660 x 2338 or email certification@rses.org with any questions.WEBINARS | RSES.ORG
As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow. FUNDAMENTALS OF CO2 REFRIGERATION CO 2 14 RSES Journal JANUARY 2020 www.rsesjournal.c om Understanding CO 2’s unique properties and system operation F or most refrigeration contractors and service technicians in the U.S., working with CO 2-based refrigeration is still largely an abstract REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR REFRIGERATION AND AIR CONDITIONING TRADE SAFETY FOR 26- TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS … Service Application Manual SAM Chapter 620-37 Section 6A . TERMINAL MARKINGS AND INTERNAL WIRING DIAGRAMS SINGLE PHASE AND POLYPHASE MOTORS MEETING NEMA STANDARDS PRINCIPLES OF REFRIGERATION Service Application Manual SAM Chapter 620-05 Section 01 PRINCIPLES OF REFRIGERATION — PART 1 By: Paul Reed THE ELEMENTS Everything in, on, or around the earth, sun, moon and stars, including our bodies themselves, is made up SEISMIC BRACING FOR HVACR SYSTEMS SEISMIC HAZARD MAPS In order to understand how and why the need for building codes has developed, a good resource is the U.S. GeologicalSurvey (USGS).
VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
RSES MEMBER / SUBSCRIBER LOGIN RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational HYDROCARBON TRAINING PROGRAM As the leading provider of educational meetings, seminars and workshops, RSES also provides technical examination programs and training courses for service professionals working on heating, ventilation, air conditioning and refrigeration systems across the nation. Visit RSES at www.rses.org to learn more about how RSES can help you or your organization grow.TROUBLESHOOTING
The monthly Troubleshooting column in RSES Journal—authored by leading HVACR experts—is one of the most popular, well-read sections of the magazine.Each month, our experts pose a unique problem to readers, offering them background on the system and situation, along with illustrations and other pertinent data neccessary for an HVACR professional to figure out the root cause of the service call. BALANCING COMFORT AND TECHNOLOGY WITH RESIDENTIAL Thermostat accuracy equates to comfort. Thermostat accuracy also is known as operating differential which is the difference between the cut-in and cut-out points as measured at the thermostat under specified operating conditions. In NEMA testing, different heating-/cooling-load conditions are applied to measuredifferential.
UNDERSTANDING ELECTRICAL SCHEMATICS 6 1 1 1 3 3 2 blk blu wht yel 115 v trsf-2 trsf-2 gv-1 24 v cb-2 3 a ign pcb vio vio vio t1 t2 t2 trsf-2 c2 ign-1 ign-2 c n/o n/c ls gv-1 gvr-1 csa rs-1 afs-1 ign-1 ign-1 ign VENTING OF CATEGORY IV APPLIANCES (HIGH-EFFICIENCY … its appearance. One such fitting that is often used is a concentric fitting (see Figure 1). It allows the vent pipe and the air intake to exit the building through one penetration. The fitting is actually adouble-wall
OSHA CONFINED SPACE RULE: TEMPERATURE HAZARDS RULE 18 RSES Journal NOVEMBER 2016 www.rsesjournal.com as time-weighted averages (TWAs). CO poisoning interferes with oxygen transport and absorption and can effectively debili-tate the victim physically andmentally.
BECAUSE TEMPERATURE MATTERS: MAINTAINING COOLING … STRAINER SYSTEMS Fundamentally important to the performance of a cooling tower is a method to minimize contact between air- and water-borne debris and the system GAS HEATING VENTING TABLES Service Application Manual SAM Chapter 630-131 Section 12 GAS HEATING VENTING TABLES Used by permission of the copyright holder, AmericanGas Association
BRAZING TO MAKE AN R-410A SYSTEM LEAK-FREE 18 RSES Journal OCTOBER 2009 w w w . r s e s j o u r n a l . c o m B y R o B e R t H e n s o n O n Jan. 1, 2010, air-conditioning manufacturers will cease production of new equipment that uses R-22re-
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CHECK OUT THE LATEST ISSUE OF _RSES JOURNAL _FOR FEATURES INCLUDING: HOW HUMIDITY AFFECTS TEMPERATURE DROP, MULTIPLY REFRIGERATION ADVANTAGES WITH MULTIPLEX SYSTEM DESIGN, STAYING FROSTY WITH A2L REFRIGERANTS AND MORE. ALL INSIDE YOUR MAY 2021 _RSESJOURNAL_ ISSUE.
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More Featured Products SOCIETY & INDUSTRY NEWS Facebook Twitter Print Email AddThis Electrical Checks that Should be Done with Preventive Maintenance Having plant equipment up and running at maximum efficiency is the main goal of maintenance teams. Running with minimum unplanned down time requires limiting reactive maintenance by starting a program that looks at preventive maintenance, predictive maintenance and proactive maintenance. The first step is knowing which one you need, and how these different types of programs work together.Read More
Contractor Tips for ERV Installation CHOOSING THE APPROPRIATE SIZES, functions and taking into account recent innovations can affect the installation of residential energy recovery ventilators (ERV).Read More
The Fundamentals of Leak Testing As regulations around the phasedown of HFC refrigerants and the push for lower-GWP alternatives continue to drive the HVAC/R industry issues like system installation, maintenance and service practices are also changing accordingly.Read More
The Great Debate in Replacement Parts ONE OF THE BIGGEST CHALLENGES for HVAC contractors is that there is never enough time in the day for the work that needs to be done. In the world of HVAC, time is a valuable commodity. If a piece of equipment stops working or is not performing as it should, homeowners and businesses need the repair or replacement to happen as soon as possible.This means having the right part on-hand so the fix can happen as quickly as possible.Read More
RSES Observes Memorial Day 2021 In observance of Memorial Day, RSES will be closed on Monday, May 31,2021.
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RSES is the leading education, training and certification preparation organization for HVACR professionals. RSES publishes various comprehensive industry training and reference materials in addition to delivering superior educational programs designed to benefit HVACR professionals at every stage of their careers through instructor-led training courses, online training for HVAC, educational seminars, interactive CD and DVD products, industry-related reference manuals, and helpful technical content through Service Application Manual chapters, the RSES Journal, the RSES Journal archives and feature articles, as well as web-exclusive features. Beginning with basic theory and extending to complex troubleshooting, training courses covering refrigeration and air conditioning, heating, electricity, controls, heat pumps and safety may be conducted in a classroom environment or though self study. RSES publications may be purchased by schools, contractors, manufacturers or any other industry group wanting to conduct comprehensive training programs. Seminars covering air conditioning troubleshooting, electrical troubleshooting, compressor training, condenser training, refrigerant piping practices, DDC controls, and more are held in various cities across NorthAmerica.
Select training programs offer Continuing Education Units (CEUs) and NATE Continuing Education Hours (CEHs). In addition, RSES offers industry certification preparation materials for refrigerant handling (EPA Section 608), R-410A and North American Technician Excellence (NATE) examinations. RSES’ monthly magazine, RSES Journal, serves HVAC contractors, service technicians, students, operations/maintenance managers, engineers and technicians who work in the residential, light commercial, commercial and institutional markets on air conditioning, warm-air heating, refrigeration, ventilation, electrical, ice machines, chillers, hydronic heating, piping, refrigeration control and energy management, building automation, indoor air quality and duct cleaning, and sheet metal fabrication equipment and/or systems. 2011 RSES. All Rights Reserved.Details
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