HVAC FORMULAS. TON OF REFRIGERATION - The amount of heat required to melt a ton (2000 lbs.) of ice at 32 F. 288,000 BTU/24 hr. 12,000 BTU/hr.

Save this PDF as:

Size: px
Start display at page:

Download "HVAC FORMULAS. TON OF REFRIGERATION - The amount of heat required to melt a ton (2000 lbs.) of ice at 32 F. 288,000 BTU/24 hr. 12,000 BTU/hr."

Transcription

1 HVAC FORMULAS TON OF REFRIGERATION - The amount of heat required to melt a ton (2000 lbs.) of ice at 32 F 288,000 BTU/24 hr. 12,000 BTU/hr. APPROXIMATELY 2 inches in Hg. (mercury) = 1 psi WORK = Force (energy exerted) X Distance Example: A 150 lb. man climbs a flight of stairs 100 ft. high Work = 150 lb. X 100 ft. Work = 15,000 ft.-lb. ONE HORSEPOWER = 33,000 ft.-lb. of work in 1 minute ONE HORSEPOWER = 746 Watts CONVERTING KW to BTU: 1 KW = 3413 BTU s Example: A 20 KW heater (20 KW X 3413 BTU/KW = 68,260 BTU s CONVERTING BTU to KW: 3413 BTU s = 1 KW Example: A 100,000 BTU/hr. oil or gas furnace (100, = 29.3 KW) COULOMB = 6.24 X (1 Coulomb = 1 Amp) E = voltage (emf) I = Amperage (current) R = Resistance (load) WATTS (POWER) = volts x amps or P = E x I P(in KW) = E x I 1,000 U FACTOR = reciprocal of R factor Example: 1 R =.05U 19 = BTU s transferred / 1 Sq.Ft. / 1ºF / 1 Hour

2 VA (how the secondary of a transformer is rated) = volts X amps Example: 24V x.41a = 10 VA ONE FARAD CAPACITY = 1 amp. stored under 1 volt of pressure MFD (microfarad) = 1 Farad 1,000,000 LRA (Locked rotor amps) = FLA (Full Load Amps) 5 TXV (shown in equilibrium) LRA = FLA x Bulb Pressure Spring Pressure Evaporator Pressure Bulb Pressure = opening force Spring and Evaporator Pressures = closing forces RPM of motor = 60Hz x 120_ No. of Poles 1800 RPM Motor slippage makes it about RPM Motor slippage makes it about 3450 DRY AIR = 78.0% Nitrogen 21.0% Oxygen 1.0% Other Gases WET AIR = Same as dry air plus water vapor SPECIFIC DENSITY = 1 Specific Volume SPECIFIC DENSITY OF AIR = 1 =.075 lbs./cu.ft STANDARD AIR =.24 Specific Heat (BTU s needed to raise 1 lb. 1 degree)

3 SENSIBLE HEAT FORMULA (Furnaces): BTU/hr. Specific Heat X Specific Density X 60 min./hr. = X CFM X T.24 X.075 X 60 X CFM X T = 1.08 X CFM X T ENTHALPHY = Sensible heat and Latent heat TOTAL HEAT FORMULA (for cooling, humidifying or dehumidifying) BTU/hr. = Specific Density X 60 min./hr. X CFM X H = 0.75 x 60 x CFM x H = 4.5 x CFM x H RELATIVE HUMIDITY = Moisture present Moisture air can hold SPECIFIC HUMIDITY = grains of moisture per dry air 7000 GRAINS in 1 lb. of water DEW POINT = when wet bulb equals dry bulb TOTAL PRESSURE (Ductwork) = Static Pressure plus Velocity Pressure CFM = Area (sq. ft.) X Velocity (ft. min.) HOW TO CALCULATE AREA Rectangular Duct Round Duct A = L x W A = πd 2 OR πr 2 RETURN AIR GRILLES Net free area = about 75% 3 PHASE VOLTAGE UNBALANCE = 100 x maximum deg. from average volts Average Volts NET OIL PRESSURE = Gross Oil Pressure Suction Pressure 4

4 COMPRESSION RATIO = Discharge Pressure Absolute Suction Pressure Absolute HEAT PUMP AUXILIARY HEAT sized at 100% of load ARI HEAT PUMP RATING POINTS (SEER Ratings) NON-BLEND REFRIGERANTS: Constant Pressure = Constant Temperature during Saturated Condition BLENDS Rising Temperature during Saturated Condition 28 INCHES OF WC = 1 psi NATURAL GAS COMBUSTION: Excess Air = 50% 15 ft. 3 of air to burn 1 ft. 3 of methane produces: 16 ft. 3 of flue gases: 1 ft. 3 of oxygen 12 ft. 3 of nitrogen 1 ft. 3 of carbon dioxide 2 ft. 3 of water vapor Another 15 ft. 3 of air is added at the draft hood GAS PIPING (Sizing CF/hr.) = Input BTU s Heating Value Example: 80,000 Input BTU s 1000 (Heating Value per CF of Natural Gas) = 80 CF/hr. Example: 80,000 Input BTU s 2550 (Heating Value per CF of Propane) = 31 CF/hr. FLAMMABILITY LIMITS Propane Butane_ Natural Gas

5 COMBUSTION AIR NEEDED Propane Natural Gas (PC=Perfect Combustion) 23.5 ft. 3 (PC) 10 ft. 3 (PC) (RC=Real Combustion) 36 ft. 3 (RC) 15 ft. 3 (RC) ULTIMATE CO % 11.8% CALCULATING OIL NOZZLE SIZE (GPH): _BTU Input = Nozzle Size (GPH) 140,000 BTU s OR BTU Output 140,000 X Efficiency of Furnace FURNACE EFFICIENCY: % Efficiency = energy output energy input OIL BURNER STACK TEMPERATURE (Net) = Highest Stack Temperature minus Room Temperature Example: 520 Stack Temp. 70 Room Temp. = Net Stack Temperature of 450 KELVIN TO CELSIUS: C = K 273 CELSIUS TO KELVIN: K = C ABSOLUTE TEMPERATURE MEASURED IN KELVINS SINE = side opposite COSINE = side adjacent

6 sin hypotenuse cos hypotenuse TANGENT = side opposite tan side adjacent PERIMETER OF SQUARE: P = 4s P = Perimeter s = side PERIMETER OF RECTANGLE: P = 2l + 2w P Perimeter l = length w = width PERIMETER OF TRIANGLE: P = a + b + c P = Perimeter a = 1st side b = 2nd side c = 3rd side PERIMETER OF CIRCLE: C = πd C = Circumference C = 2πr π = D = Diameter r = radius AREA OF SQUARE: a = s 2 A = Area s = side AREA OF RECTANGLE: A = l w A = Area l = length w = width AREA OF TRIANGLE: A = 1/2bh A = Area b = base h = height AREA OF CIRCLE: A = πr 2 A = Area π = A = π D 2 r = radius 4 D = Diameter VOLUME OF RECTANGULAR SOLID:

7 V = l wh V = Volume l = length w = width h = height VOLUME OF CYLINDRICAL SOLID: CAPACITANCE IN SERIES: V = πr 2 h V = Volume π = V = π D 2 h r = radius 4 D = Diameter h = height C = C 1 C 2 CAPACITANCE IN PARALLEL: C = C 1 + C GAS LAWS: Boyle s Law: P 1 V 1 = P 2 V 2 P = Pressure (absolute) V = Volume Charles Law: P 1 = P 2 P = Pressure (absolute) T 1 T 2 T = Temperature (absolute) General Gas Law: P 1 V 1 P 2 V 2 P = Pressure (absolute) = V = Volume T 1 T 2 T = Temperature (absolute) PYTHAGOREAN THEOREM: C 2 = a 2 + b 2 c = hypotenuse a & b = sides

HVAC FORMULAS. CFM = BTU/Hr / ( 1.08 x Temperature Difference) TON OF REFRIGERATION -

HVAC FORMULAS CFM = BTU/Hr / ( 1.08 x Temperature Difference) TON OF REFRIGERATION - The amount of heat required to melt a ton (2000 lbs.) of ice at 32 F 288,000 BTU/24 hr. 12,000 BTU/hr. APPROXIMATELY

THE PSYCHROMETRIC CHART AND ITS USE

Service Application Manual SAM Chapter 630-16 Section 3A THE PSYCHROMETRIC CHART AND ITS USE Psychrometry is an impressive word which is defined as the measurement of the moisture content of air. In broader

Glossary of Heating, Ventilation and Air Conditioning Terms

Glossary of Heating, Ventilation and Air Conditioning Terms Air Change: Unlike re-circulated air, this is the total air required to completely replace the air in a room or building. Air Conditioner: Equipment

HVAC Basic Science - System Capacity

HVAC Basic Science - System Capacity Btu/hour, btu/h, b/h, btuh. btu?? 1 MBH = 1000 btu/hour 1 KBH = 1000 btu/hour 1 ton of cooling= 12,000 btu/hour 1 watt = 3.414 btu/hour 1 kilowatt = 1000 watts = 3,414

HVAC Calculations and Duct Sizing

PDH Course M199 HVAC Calculations and Duct Sizing Gary D. Beckfeld, M.S.E., P.E. 2007 PDH Center 2410 Dakota Lakes Drive Herndon, VA 20171-2995 Phone: 703-478-6833 Fax: 703-481-9535 www.pdhcenter.com An

Basic Nameplate Information

Basic Nameplate Information General Information: Most equipment nameplates will have some common items of information. Many of these are self explanatory, and include: Manufacturer Manufacturerʼs address

Characteristics of Evaporators

Characteristics of Evaporators Roger D. Holder, CM, MSME 10-28-2003 Heat or Energy In this paper, we will discuss the characteristics of an evaporator coil. The variance of the operational condenses of

Troubleshooting an Air Conditioning system. R D Holder Eng. Roger D Holder MSME

Troubleshooting an Air Conditioning system R D Holder Eng. Roger D Holder MSME Troubleshooting of an air conditioning system is a step by step procedure. I have found that a 4 step procedure is the best

High Altitude HVAC. Silvertip Integrated Engineering Consultants mhaughey@earthlink.net www.silvertipconsultants.com

Presentation to: Rocky Mountain ASHRAE 2013 Tech Conference April 19, 2013 High Altitude HVAC Design Considerations by: Michael D. Haughey, PE, HBDP, CEM, LEED TM AP 2013 Silvertip Integrated Engineering

Geometry Review. Here are some formulas and concepts that you will need to review before working on the practice exam.

Geometry Review Here are some formulas and concepts that you will need to review before working on the practice eam. Triangles o Perimeter or the distance around the triangle is found by adding all of

Common Boiler Formulas

2006 Common Boiler Formulas Steam & Combustion 11/3/2006 2 Common Boiler Formulas TABLE OF CONTENTS BOILER HORSEPOWER........ 3 CYCLES OF CONCENTRATION OF BOILER WATER..... 3 BOILER FUEL CONSUMPTION.......

Solve each right triangle. Round side measures to the nearest tenth and angle measures to the nearest degree.

Solve each right triangle. Round side measures to the nearest tenth and angle measures to the nearest degree. 42. The sum of the measures of the angles of a triangle is 180. Therefore, The sine of an angle

THE PSYCHROMETRIC CHART: Theory and Application. Perry Peralta NC State University

THE PSYCHROMETRIC CHART: Theory and Application Perry Peralta NC State University PSYCHROMETRIC CHART Identify parts of the chart Determine moist air properties Use chart to analyze processes involving

Fuel and Energy Conversion and Equivalence Chart

Fuel and Energy Conversion and Equivalence Chart Please note, the fuel economy estimates within this document are examples only. Maine Public Service does not consult with customers regarding fuel source

It will be available soon as an 8.5 X 11 paperback. For easier navigation through the e book, use the table of contents.

The System Evaluation Manual and Chiller Evaluation Manual have been revised and combined into this new book; the Air Conditioning and Refrigeration System Evaluation Guide. It will be available soon as

MAC-120HE-01 Air-Cooled Chiller

MAC-120HE-01 Air-Cooled Chiller 10 Ton / 120,000 BTUH Air-Cooled Chiller 208/230-1-50/60 1 HVAC Guide Specifications Air-Cooled Liquid Chiller Nominal Size: 10 Tons Multiaqua Model Number: MAC-120HE-01

Presentation Outline. Common Terms / Concepts HVAC Building Blocks. Links. Plant Level Building Blocks. Air Distribution Building Blocks

Presentation Outline Common Terms / Concepts HVAC Building Blocks Plant Level Building Blocks Description / Application Data Green opportunities Selection Criteria Air Distribution Building Blocks same

Energy Efficient Building Design College of Architecture Illinois Institute of Technology, Chicago. Relative Humidities RH% 49.4. 0.

Psychrometrics Psychrometric Chart Relative Humidities RH% 49.4 100% 80% 0.030 Enthalpies 70% H btu/lb 46.5 0.028 85 Not to Scale 0.026 Humidity Numbers and Values 43.7 60% Ratios are approximate 0.024

The formula for finding CFM is: CFM = BTUH OUTPUT_ Temp Rise (ACF)* *Altitude correction factor below 1000ft = 1.08

Air Volume Requirement Air conditioning systems are engineered with a specific amount of indoor air passing across the surface of the evaporator coil. The amount of air is measured in cubic feet per minute.

Total Heat Versus Sensible Heat Evaporator Selection Methods & Application

Total Heat Versus Sensible Heat Evaporator Selection Methods & Application Scope The purpose of this paper is to provide specifying engineers, purchasers and users of evaporators in industrial refrigeration

Rusty Walker, Corporate Trainer Hill PHOENIX

Refrigeration 101 Rusty Walker, Corporate Trainer Hill PHOENIX Compressor Basic Refrigeration Cycle Evaporator Condenser / Receiver Expansion Device Vapor Compression Cycle Cooling by the removal of heat

INDOOR COILS. RCFL- featuring Industry Standard R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES

FORM NO. C11-211 REV. 7 Supersedes Form No. C11-211 Rev. 6 INDOOR COILS RCFL- featuring Industry Standard R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES AIRFLOW CAPACITIES 600-1,900 CFM

THE HUMIDITY/MOISTURE HANDBOOK

THE HUMIDITY/MOISTURE HANDBOOK Table of Contents Introduction... 3 Relative Humidity... 3 Partial Pressure... 4 Saturation Pressure (Ps)... 5 Other Absolute Moisture Scales... 8 % Moisture by Volume (%M

Parker Indirect Fired Hot Water Boiler

Parker Indirect Fired Hot Water Boiler Mfg: Parker Model: WH-970 Stock No. CGCB074.1 Serial No. Parker Indirect Fired Hot Water Boiler. Model: WH-970. MAWP: 125 psi., heating surface: 103.5 sq. ft. Horse

GLOBACON 05 HVAC Systems for Cogen

GLOBACON 05 HVAC Systems for Cogen Track 2, Session 2B Advanced HVAC and Building Systems Date: March 24th, 2005 Gearoid Foley President Integrated CHP Systems Corp. Integrated CHP Systems Corp. Electricity

TECHNICAL MANUAL GDS8 & GHS8

TECHNICAL MANUAL AL GDS8 & GHS8 33-3/8" 80% Gas Furnace Units Refer to Service Manual RS6610004 for installation, operation, and troubleshooting information. All safety information must be followed as

WCA3**2. Product Specifications. AIR CONDITIONER COMPONENT 1 1/2 THRU 5 TONS 208 / 230 Volt, 1 phase, 60 Hz ALL MODELS

AIR CONDITIONER COMPONENT 1 1/2 THRU 5 TONS 208 / 230 Volt, 1 phase, 60 Hz WCA3**2 Number Size (tons) Nominal BTU/hr Min. Circuit Ampacity Max. Fuse or Breaker WCA3182GKR 1 1/2 18,000 10.9 15 WCA3242GKR

Calculating the surface area of a three-dimensional object is similar to finding the area of a two dimensional object.

Calculating the surface area of a three-dimensional object is similar to finding the area of a two dimensional object. Surface area is the sum of areas of all the faces or sides of a three-dimensional

PAYNE. Model FD3A Sizes 018, 024 and 030 HEATING/COOLING FAN-COIL UNITS. Form No. PDS FD3A.18.1P. This document was created with FrameMaker 4.0.

This document was created with FrameMaker 4.0.4 PAYNE Heating & Cooling HEATING/COOLING FAN-COIL UNITS Model Sizes 018, 024 and 030 Model Heating/Cooling Fan-Coil Units are specifically designed for installation

Engineering Excellence HVAC Retrofit Keyword Dictionary

Engineering Excellence HVAC Retrofit Keyword Dictionary ASHRAE: American Society of Heating, Refrigerating and Air Conditioning Engineers. ASHRAE, founded in 1894, is a global society advancing human well-being

Calculate Available Heat for Natural Gas Fuel For Industrial Heating Equipment and Boilers

For Industrial Heating Equipment and Boilers Prepared for California Energy Commission (CEC) Prepared By: Southern California Gas Company (A Sempra Energy Utility) E3M Inc. May 2012 i Disclaimer The CEC

Circuit breaker panel. Power supply for condensing unit. Power supply for furnace. Air handler (Furnace)

UNIT OBJECTIVES Describe the concept of year-round air conditioning List three typical year-round air conditioning system types List the five ways to condition the air Determine airflow for a cooling system

Cooling Capacity CFM range @.5 in. w.c. (125 Pa)

N8MXL Product Specifications 80% ECM Single Stage Heating Furnace EASIER TO SELL 80% AFUE Flame roll out sensors standard Category I venting Blocked vent switch 24 VAC humidifier terminal Electronic air

Cooling Capacity CFM range @.5 in. w.c. (125 Pa)

96% AFUE, Single Stage, ECM Gas Furnace EASIER TO SELL 96% AFUE, all models all positions Xtra SEER ECM blower motor Supports two stage cooling units Dehumidification feature in cooling California NOx

Cooling Capacity CFM range @.5 in. w.c. (125 Pa)

96% AFUE, Two Stage ECM Gas Furnace EASIER TO SELL 96% AFUE, all models, all positions Two stage heating operation Xtra SEER ECM blower motor Supports two stage cooling units Dehumidification feature in

INDOOR COILS. RCFA- featuring R-22 Refrigerant RCFL- featuring Earth-Friendly R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES

FORM NO. C11-211 REV. 3 Supersedes Form No. C11-211 Rev. 2 INDOOR COILS RCFA- featuring R-22 Refrigerant RCFL- featuring Earth-Friendly R-410A Refrigerant earth friendly refrigerant CASED/UNCASED COILS

Geometry Notes PERIMETER AND AREA

Perimeter and Area Page 1 of 57 PERIMETER AND AREA Objectives: After completing this section, you should be able to do the following: Calculate the area of given geometric figures. Calculate the perimeter

Central Air Conditioning Plants

Central Air Conditioning Plants In our department, these plants (Air cooled or water cooled) are commonly available above 10 TR up to 100 TR. These types of plants are more suitable for large installations

Below are detailed instructions for using the EMS load calculator.

Introduction The EMS load calculator is designed to make load calculating as painless as possible. For sizing the equipment, only the first three tabs (Steps 1, 2 & 3) need to be completed. This process

Area Long-Term Memory Review Review 1

Review 1 1. To find the perimeter of any shape you all sides of the shape.. To find the area of a square, you the length and width. 4. What best identifies the following shape. Find the area and perimeter

WORKSHEET FOR RESIDENTIAL AIR SYSTEM DESIGN page 1

WORKSHEET FOR RESIDENTIAL AIR SYSTEM DESIGN page 1 Wallet card photocopy Inspection Authority: Signature: Date: / / Submitted For: ( Owner ) Name Address City Prov Postal code Phone ( ) Fax ( ) Designer/Signature:

Electric Motor Brake Horsepower Calculations

Electric Motor Brake Horsepower Calculations By Norm Christopherson These motor calculations are contained here as they apply to the changing conditions of the blower motor when pulley adjustments are

Energy Efficiency in Industrial HVAC Systems

Energy Efficiency in Industrial HVAC Systems Heating, ventilation and air conditioning (HVAC) constitutes up to 35 percent of energy used in manufacturing facilities. This fact sheet is geared towards

HVAC Efficiency Definitions

HVAC Efficiency Definitions Term page EER - 2 SEER - 3 COP - 4 HSPF - 5 IPLV - 6 John Mix May 2006 Carrier Corporation 1 Energy Efficiency Ratio (EER) The energy efficiency ratio is used to evaluate the

College & University Technicians 46 th Annual PTG Convention & Technical Institute Humidity Control in the Institutional Environment

College & University Technicians 46 th Annual PTG Convention & Technical Institute Humidity Control in the Institutional Environment Period 1 Whole Building Humidity Control Systems By Claud Kissmann,

M SERIES REFRIGERANT COIL MODULE REFRIGERANT COILS for R-22, R-407C, R-410A

Bulletin 20-20.2 / July 2012 M SERIES REFRIGERANT COIL MODULE REFRIGERANT COILS for R-22, R-407C, R-410A ➀ ➁ ➂ Model Number Key M 2430 C L 1 - A - ➀ Unit Type M=Modular Nominal Capacity 2430=24000 to 30000

INDOOR COILS. RCFM- featuring Earth-Friendly R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES

FORM NO. C11-212 REV. 1 Supersedes Form No. C11-212 INDOOR COILS RCFM- featuring Earth-Friendly R-410A Refrigerant earth friendly refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES AIRFLOW CAPACITIES

Pump Formulas Imperial and SI Units

Pump Formulas Imperial and Pressure to Head H = head, ft P = pressure, psi H = head, m P = pressure, bar Mass Flow to Volumetric Flow ṁ = mass flow, lbm/h ρ = fluid density, lbm/ft 3 ṁ = mass flow, kg/h

Test Code: 8297 / Version 1

Blueprint HVAC Maintenance Technology PA Test Code: 8297 / Version 1 Copyright 2014. All Rights Reserved. General Assessment Information HVAC Maintenance Technology PA Blueprint Contents General Assessment

UA-NJ Air Conditioning & Refrigeration Division Training Curriculum

UA-NJ Air Conditioning & Refrigeration Division Training Curriculum 1st Year Basic Mathematics for HVAC Using formulas as an expression of logical sequence in solving problems. Measuring using a ruler

F9MXE. Product Specifications

96% AFUE, Single Stage, ECM Gas Furnace EASIER TO SELL 96% AFUE, all models all positions Select models earn the ENERGY STAR (See below, indicated with check mark.) Xtra SEER ECM blower motor Supports

Contents and Nomenclature

DX Coils Contents and Nomenclature Nomenclature... 1 Evaporator Coil Types EN... 2 EF... 2 ER... 2 EJ... 3 EK... 3 Evaporator Construction Connections... 4 Tubing... 4 Headers... 5 Tube Supports... 5 Coil

Cased/Uncased Coils For Gas And Oil Furnaces

Indoor Coils Cased/Uncased Coils For Gas And Oil Furnaces RCFL- Series featuring Industry Standard R-410A Refrigerant Airflow Capacity 600-1,900 CFM [283-897 L/s] Rheem Indoor Coils are designed for use

TECHNICAL GUIDE SINGLE PIECE AIR HANDLERS FOR USE WITH SPLIT-SYSTEM COOLING & HEAT PUMPS. DESCRIPTION FEATURES

TECHNICAL GUIDE SINGLE PIECE AIR HANDLERS FOR USE WITH SPLIT-SYSTEM COOLING & HEAT PUMPS MODELS: AHR18 THRU 60* DESCRIPTION This fan coil line offers the ultimate in application flexibility. The AHR (non-variable

How much do you know about HVAC? Try testing yourself with the following questions and then take a look at the answers on the following page.

Demystifying HVAC Test Your HVAC Knowledge By Ron Prager How much do you know about HVAC? Try testing yourself with the following questions and then take a look at the answers on the following page. 1)

Perimeter, Area, and Volume

Perimeter, Area, and Volume Perimeter of Common Geometric Figures The perimeter of a geometric figure is defined as the distance around the outside of the figure. Perimeter is calculated by adding all

Pacific Pump and Power

Pacific Pump and Power 91-503 Nukuawa Street Kapolei, Hawaii 96707 Phone: (808) 672-8198 or (800) 975-5112 Fax: (866) 424-0953 Email: sales@pacificpumpandpower.com Web: www.pacificpumpandpower.com Table

INDOOR COILS. RCFN- featuring Industry Standard R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES

FORM NO. C11-213 REV. 4 Supersedes Form No. C11-213 Rev. 3 INDOOR COILS RCFN- featuring Industry Standard R-410A Refrigerant CASED/UNCASED COILS FOR GAS AND OIL FURNACES AIRFLOW CAPACITIES 600-1,900 CFM

SECTION 5 COMMERCIAL REFRIGERATION UNIT 21 EVAPORATORS AND THE REFRIGERATION SYSTEM

SECTION 5 COMMERCIAL REFRIGERATION UNIT 21 EVAPORATORS AND THE REFRIGERATION SYSTEM UNIT OBJECTIVES After studying this unit, the reader should be able to Define high-, medium-, and low-temperature refrigeration.

Air Conditioning Contractors of America

Air Conditioning Contractors of America WHO IS ACCA???? Industry Manuals Residential D, J, S, H, RS, T, P A manual J load calculation is a measurement of how much heating and cooling capacity a home will

Fan Applications & System Guide

Fan Applications & System Guide Airflow for general ventilation can be calculated by; Area Method Air Change Method Occupancy Method Ventilation Calculation Methods Area Method Derives the ventilation

Energy Efficiency. Energy Efficient Home Cooling:

Energy Efficiency Energy Efficient Home Cooling: Choosing an air conditioning system is an important decision. A poor choice may be costly to purchase and operate and yet fail to provide the desired cooling

Energy Efficient Grain Drying. Kenneth Hellevang, Ph.D., P.E. Professor & Extension Engineer

Energy Efficient Grain Drying Kenneth Hellevang, Ph.D., P.E. Professor & Extension Engineer Estimated Corn Field Drying PET=Potential Evapotranspiration EMC (%) PET (in) Est. Drying (%pt) Month Week Sep

General Engineering Data

CONTENTS STEAM PIPING........................................................... 3 WATER PIPING........................................................... 3 NATURAL GAS PIPING.....................................................

You can solve a right triangle if you know either of the following: Two side lengths One side length and one acute angle measure

Solving a Right Triangle A trigonometric ratio is a ratio of the lengths of two sides of a right triangle. Every right triangle has one right angle, two acute angles, one hypotenuse, and two legs. To solve

Navigating the Cooling process on the Psychrometric Chart

Navigating the Cooling process on the Psychrometric Chart Two examples of cooling will be reviewed in the following examples. The first is an example of sensible mechanical cooling and the second is an

Refrigeration Basics 101. By: Eric Nelson

Refrigeration Basics 101 By: Eric Nelson Basics Refrigeration is the removal of heat from a material or space, so that it s temperature is lower than that of it s surroundings. When refrigerant absorbs

Case of Screw Refrigeration System Design

Chapter 25 Case of Screw Refrigeration System Design Copy Right By: Thomas T.S. Wan 温 到 祥 著 Sept. 3, 2008 All rights reserved This shall be a simplified version of the example to illustrate the thinking

DESCRIPTION TECHNICAL GUIDE EMBASSY SERIES SINGLE PACKAGE AIR COOLED AIR CONDITIONERS

DESCRIPTION YORK s self-contained air conditioning packages offer a complete line of unit options for indoor, through-the-wall installation for high rise and single story building applications. TECHNICAL

Ground Source Heat Pumps The Fundamentals. Southington, Connecticut 860 628 4622 John F. Sima III P.E.

Ground Source Heat Pumps The Fundamentals Southington, Connecticut 860 628 4622 John F. Sima III P.E. Winter/Spring 2010 Ground Source Heat Pumps The Fundamentals TOPICS: Heat Pump Terminology Basic Physics

Low Cost. Lower Energy Costs. Higher Efficiency.

HI-E DRY dehumidifiers remove two to three times more water per kilowatt hour of electricity than conventional dehumidifiers. Low Cost. Lower Energy Costs. Higher Efficiency. Therma-Stor designed an efficient,

UNDERSTANDING REFRIGERANT TABLES

Refrigeration Service Engineers Society 1666 Rand Road Des Plaines, Illinois 60016 UNDERSTANDING REFRIGERANT TABLES INTRODUCTION A Mollier diagram is a graphical representation of the properties of a refrigerant,

Equivalents & Conversion Factors 406 Capacity Formulas for Steam Loads 407 Formulas for Control Valve Sizing 408-409

Engineering Data Table of Contents Page No. I II Formulas, Conversions & Guidelines Equivalents & Conversion Factors 406 Capacity Formulas for Steam Loads 407 Formulas for Control Sizing 408-409 Steam

Defining Quality. Building Comfort. Precision. Air Conditioning

Defining Quality. Building Comfort. Precision Air Conditioning Today s technology rooms require precise, stable environments in order for sensitive electronics to operate optimally. Standard comfort air

CHAPTER 3 PROPERTIES OF NATURAL GASES

CHAPTER 3 PROPERTIES OF NATURAL GASES The behavior of natural gas, whether pure methane or a mixture of volatile hydrocarbons and the nonhydrocarbons nitrogen, carbon dioxide, and hydrogen sulfide, must

Gas Unit Heaters Duct Furnaces Horizontal - 60 HZ Form No. LF24-100-400 (10/2011) LF24 Standard

LF Standard Features Horizontal unit heaters are compact in design and easy to install. Steady State Efficiencies of up to 80.%. Ideal for economical commercial heating systems. Shipped completely assembled

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION Wastewater Treatment Formulas/Conversion Table

Revised February 2014 FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION Wastewater Treatment Formulas/Conversion Table Measurement Conversion Measurement Conversion Measurement Conversion 12 in= 1 ft 27 cu.

SSB*H4. Service Literature. SSB*H4 Commercial Air Conditioner

Service Literature Corp. 0628 L5 Revised 07 2010 SSB*H4 Commercial Air Conditioner SSB*H4 The SSB*H4 is a high efficiency commercial split system condensing unit, which features a two stage scroll compressor

Technical Specification. Generating Set with Waukesha engine burning natural gas

Technical Specification Generating Set with Waukesha engine burning natural gas The following presents the Gas Engine Generating Set (GEGS) APG1000 type, based on Waukesha gas engine 16V150LTD. Using the

MATHEMATICS FOR WATER OPERATORS

MATHEMATICS FOR WATER OPERATORS Chapter 16: Mathematics The understanding of the mathematics of water hydraulics (flows, pressures, volumes, horsepower, velocities) and water treatment (detention time,

Characteristics of water

Characteristics of water Boiling point 212F @ sea level, higher altitudes? Freezing point - 32F Specific heat 1.0 Ammonia has highest ice and steam SH =.5 Specific weight 1.0 Latent heat of fusion 144

HEATING SYSTEMS Course Syllabus

6111 E. Skelly Drive P. O. Box 477200 Tulsa, OK 74147-7200 HEATING SYSTEMS Course Syllabus Course Number: ARCO-0922 OHLAP Credit: No OCAS Code: None Course Length: 120 Hours Career Cluster: Architecture

Chapter 3.4: HVAC & Refrigeration System

Chapter 3.4: HVAC & Refrigeration System Part I: Objective type questions and answers 1. One ton of refrigeration (TR) is equal to. a) Kcal/h b) 3.51 kw c) 120oo BTU/h d) all 2. The driving force for refrigeration

Module 9: Basics of Pumps and Hydraulics Instructor Guide

Module 9: Basics of Pumps and Hydraulics Instructor Guide Activities for Unit 1 Basic Hydraulics Activity 1.1: Convert 45 psi to feet of head. 45 psis x 1 ft. = 103.8 ft 0.433 psi Activity 1.2: Determine

Mathematics For Wastewater Operators

Mathematics For Wastewater Operators Chapter 17: Mathematics The understanding of the mathematics of wastewater treatment is an important tool for all wastewater system operators. This chapter covers most

ENERGY CONSERVATION PRESENTATION BY : PCG CORPORATION

ENERGY CONSERVATION PRESENTATION BY : PCG CORPORATION ENGINEERING SERVICES: Clients References Energy Projects Bristol Myers Barceloneta Electric Bill Analysis Lilly Guayama Electric Bill Analysis Bristol

ABC & C 2 EP Formula/Conversion Table for Water Treatment, Distribution, & Laboratory Exams

ABC & C EP Formula/Conversion Table for Water Treatment, Distribution, & Laboratory Exams Alkalinity, as mg CaCO 3 /L = (Titrant, ml) (Acid Normality)(50,000) Sample, ml Volts Amps = Ohms * of Circle =

INSTRUCTIONS FOR HOW TO PROPERLY SELECT A FAN OR BLOWER

INSTRUCTIONS FOR HOW TO PROPERLY SELECT A FAN OR BLOWER The instructions that follow are to assist you in completing the information required when making a fan or blower selection. If you need additional

GCS16 GCS20 WARNING CAUTION

Service Literature Corp. 0110 L6 Revised 12 2004 GCS16/GCS20 SERIES UNITS GCS16 GCS20 2 to 5 Ton GCS16/20 series units in the 2 to 5 ton (7.0 to 17.0 kw) cooling size are packaged combination gas heat

Zoning with Variable Speed Mini-Split Systems

Zoning with Variable Speed Mini-Split Systems Fujitsu Service Training Welcome - Thank you for attending Did you know? In 1940 only 42% of homes in the US had central heating In 1970 20% of homes had central

Heating Ventilation and Air Conditioning Diagnostics for Single Family Homes

Heating Ventilation and Air Conditioning Diagnostics for Single Family Homes Vincent Pedalino FSL Home Improvements Phoenix, AZ 1 HVAC Basics Ways to improve the performance of existing air conditioning

Sulfur Tail Gas Thermal Oxidizer Systems By Peter Pickard

Sulfur Tail Gas Thermal Oxidizer Systems By Peter Pickard Introduction SRU s (Sulfur Recovery Units) are critical pieces of equipment in refineries and gas plants. SRUs remove sulfur compounds from certain

Solutions to Exercises, Section 5.1

Instructor s Solutions Manual, Section 5.1 Exercise 1 Solutions to Exercises, Section 5.1 1. Find all numbers t such that ( 1 3,t) is a point on the unit circle. For ( 1 3,t)to be a point on the unit circle

a c Pythagorean Theorem: a 2 + b 2 = c 2

Section 2.1: The Pythagorean Theorem The Pythagorean Theorem is a formula that gives a relationship between the sides of a right triangle The Pythagorean Theorem only applies to RIGHT triangles. A RIGHT

1 foot (ft) = 12 inches (in) 1 yard (yd) = 3 feet (ft) 1 mile (mi) = 5280 feet (ft) Replace 1 with 1 ft/12 in. 1ft

2 MODULE 6. GEOMETRY AND UNIT CONVERSION 6a Applications The most common units of length in the American system are inch, foot, yard, and mile. Converting from one unit of length to another is a requisite

Performing Calculations

Calculations Performing Calculations Practical application of information learned in this program A pool operator must perform calculations regularly in order to properly do his or her job Examples: Conversions