Single Pole Humidity Sensor and Fan Controller Cat
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DOAS Enthalpy Wheel (EW) Issues
DOAS Enthalpy Wheel (EW) Issues: 1. Is it required for DOAS? Yes for all practical purposes in the USA. Both ASHRAE Std. 90.1 and ASHRAE’s new Standard for the Design Of High Performance Green Buildings (189.1) require a 60% effective total energy recovery (TER) device for even the smallest systems in the moist USA--located primarily east of the continental divide as illustrated below: 2. Life and durability. The following link provides useful information, particularly concerning the life expectancy. http://www.thermotech-usa.com/tech_heatwheel 3. Purge, a basic description of how it works is at the following link: http://www.thermotech-usa.com/tech_purge . The presence of the purge requires an increase in air flow beyond the desired supply air delivery requirement, increasing fan energy use. Therefore unless absolutely needed for air quality reasons (most all-air systems in commercial facilities recirculate up to 80% of the air—so what is a few percent recirculation at the EW going to hurt) purge should be avoided. 4. Seal leakage is an equally important issue. Like purge, seal leakage should be minimized for fan energy savings as well. This requires wheels with tough wear resistant and very planar faces. And the seals must be very close fitting. 5. Dirty Socks Odor Syndrome: Published references for EW occurrences are not readily available at this time. However the syndrome occurrences have only been reported where a silica gel desiccant on non-aluminum matrix substrate EW is used. There have not been reports of this syndrome problem for applications where a molecular sieve (zeolite) desiccant on an aluminum substrate EW is used. -
Cd60 Dehumidifier Specifications
To Buy: Visit www.sylvane.com or call (800) 934-9194 For Product Support: Contact Ebac USA at (757) 873 6800 CD60 DEHUMIDIFIER SPECIFICATIONS Specifications CD60 Features CD60 Model No. 10264FR-US Model No. 10264FR-US Height 17” (432mm) On/Off Control Width 20” (514mm) Electronic Defrost Control Depth 14” (356mm) Compressor Type Rotary Weight 80 lbs (36kg) Fitted Mains Plug Voltage 110 V Free Standing Adjustable Feet Phase 1 Remote Humidistat Frequency 60 Hz Adjustable Control Humidistat Current 7 A Hot Gas Defrost System Power 880W Hours Run Meter Airflow 360cfm (608m3/hr) High Capacity Condensate Pump Noise Level 57 dba Quick Disconnect Hose Coupling Refrigerant R407c 25’ Length of PVC Drain Hose Effective Volume 8,369 cu.ft (237m3) Epoxy Powder Coating Typical Extraction 56 ppd Minimum Operating Temperature 33°F (1°C) Maximum Operating Temperature 95°F (35°C) APPLICATION The EIPL CD60 commercial / industrial dehumidifier was designed to provide energy efficient humidity control in a wide range of applications including offices, laboratories, apartments, storage areas, restaurants, bars, museums, locker rooms, computer, telecommunication rooms and basements. It is a quiet, high efficiency, high capacity unit designed to suit your HVAC needs. KEY DESIGN FEATURES • Adjustable control humidistat to maintain the level of dryness • A convenient drain point for condensate collection of hose attachment • EIP’s unique “Hot Gas” defrosting feature which automatically melts away frost buildup providing effective operation at low ambient temperatures • Rugged, epoxy powder-coated steel chassis and housing. • Hours run meter • Simplicity of installation and operation with a standard 115V plug • Extra long power cord. -
Model 70007000
M ModelModel 70007000 Installation/Operating Instructions # 010921025 2 Model 7000 Flow Through Humidifier FREQUENTLY ASKED QUESTIONS your furnace is running and in heating mode. 24 hours of humidifier operation may take 3 days to complete. Question: Why use a flow-through style humidifier rather Question: How much water does this humidifier use? than a drum style humidifier? Answer: This humidifier incorporates a restrictor which Answer: This will depend on several factors including size of meters the amount of water supplied to the unit. In the home, style of furnace, and size of ducting; as well as personal average home the unit will use totally 56 US gallons (47 preference. However in order to use this model flow through Imperial gallons, 212 Litres) of water per 24 hours of you will require at least 10" wide ducting where as our drum operation. styles will fit on 8" ducting. Comment: As mentioned above 24 hours of operation refers Comment: Flow-through and rotating-drum style evaporative to humidifier operation, the 24 hours operating time may take furnace humidifiers will safely and efficiently humidify 90% of 3 days to complete. When Compared to the water consumed homes which use forced air heating. As a manufacturer of during the average shower (3 to 5 gallons per minute) the total both styles there are pro’s and con’s to be considered when amount of water consumed to humidify your home is not that choosing a type of humidifier. A drum style humidifier is much. typically 100% efficient in its use of water, meaning all the water it uses will be delivered to the air. -
Guide for Air Conditioning, Refrigeration, and Help the Student
DOCUMENT RESUME ED 251 645 CE 040 232 AUTHOR Henderson, William Edward, Jr., Ed. TITLE Art::culated, Performance-Based Instruction Objectives Guide for Air Conditioning, Refrigeration, and Heating. Volume II(Second Year). INSTITUTION Greenville County School District, Greenville, S.C.; Greenville Technical Coll., S. PUB DATE Oct 84 NOTE 374p.; Prepared by the Articulation Program Task Force Committee for Air Conditioning, Refrigeration, and Heating. PUB TYPE Guides Clasrroom Use Guides (For Teachers) (052) EDRS PRICE MF01/PC15 Plus Postage. DESCRIPTO. *Air Conditioning; Behavioral Objectives; Competency Based Education; Curriculum Guides; *Equipment Maintenance; Fuels; Jrade 12; *Heating; High Schools; Job Skills; Le.,zning Activities; *Refrigeration; Secondary Education; Solar Energy; Trade and Industrial Education; Units of Study; *Ventilation ABSTRACT This articulation guide contains 17 units of instruction for the second year of a two-year vocational program designed to prepare the high school graduate to install, maintain, and repair various types of residential and commercial heating, air conditioning, and refrigeration equipment. The units are designed to help the student to expand and apply the basic knowledge already mastered and to learn new principles and techniques and to prepare him/her for entry-level work as an apprentice. The seventeen units cover aid conditioning calculations (psychrometrics,residential heat loss and heat gain, duct design and sizing and air treatment); troubleshooting and servicing residential air conditioners; commercial refrigeration; commercial air conditioning; heating systems (electrical resistance heating, heat pumps, gas heating, oil heating, hydronics, solar heating systems); automotive air conditioner maintenance/repair; estimating and planning heating, ventilation, and air conditioning jobs; customer relations; and shop projects. -
The Gold Standard in Fan Heaters
WALL FAN HEATER ARWF SERIES THE GOLD STANDARD IN FAN HEATERS The PULSAIR™ is extremely popular for many reasons. First, it can be recessed or surface mounted with a surface adapter (optional). In addition, it can be mounted vertically or horizontally, directing the air flow upward or downward and to the right or to the left, respectively. Last, the slim-line PULSAIR™ can be recessed into W W W W Y Y Y A A A A T T a wall thickness of 2 in. to 3 in. While it’s a winning heating solu- T R R R R N N N R R R R A A A LIFETIME A A A A R R R N N N N R R R on element T T T T A A A tion for the hallway and bathroom, it can also be installed in other Y Y Y Y W W W W W W parts of the house, such as the office or in commercial buildings. W Y Y Y Y A A A A T T T T R R R R N N N R N Its nichrome element provides instant heat. Available from 500 W R A R A R A A A A R A R A R R N N N N 2YEAR R 3YEAR R 5YEAR R 5YEAR R T A T A T A T to 2000 W, and from 120 V to 277 V, the PULSAIR™ is recognized Y Y Y Y A W W W W W W W W and recommended by those in the know. -
Delta Fan Heater
PAGE 1/2 DELTA FAN HEATER DELTA is a robust, reliable fan heater that is designed for use in TECHNICAL DATA areas that require a little more of materials and performance, for Voltage range: instance construction sites and ships. • 1x110V to 3x690V + PE DELTA is also used for more permanent installations such as in- Frequenzy, can be used at: dustrial buildings and warehouses, workshops, factories or ga- • 50 Hz and 60 Hz rages, as it can go from transportable to permanent fixture with Degree of protection for electrical components: a simple wall-bracket. • TP1: 3-9kW = IP44 • TP2: 15-21kW = IP34 It comes with an integrated 0-40°C room thermostat that en- Temperature control: sures optimal operation and minimizes energy consumption, as • TP1: Combi termostat with adjustable room thermostat 0-40°C well as a thermal cut-out to protect against overheating. The + thermal cut-out fan heater works without standby and does not use unneces- • TP2: Adjustable room thermostat 0-40°C + thermal cut-out sary power. Level regulation: • Manually operated 5-level change-over switch that regulates DELTA is built with internal casing in the heating chamber, which air speed and heating effect. Moreover, all types can be sup- ensures that the entire flow of air passes over the heating ele- plied with a 24-hour timer. A DELTA fan heater with timer ments. This eliminates problems with varying airflow and cold function switches on when the set time has elapsed. spots. Off The DELTA fan heater comes in two sizes: • TP1 = 3-9 kW - small cabinet Fan on • TP2 = 15-21 kW - large cabinet Half fan and half heat effect TP1: 372 mm TP1: 300 mm TP2: 462 mm TP2: 360 mm Full fan and half heat effect Full fan and full heat effect TP1: 435 mm TP2: 540 mm TP1: 322 mm ELECTRICAL INSTALLATION TP2: 392 mm Permanent installation must always be performed by an authori- zed electrician in accordance with relevant laws and regulations. -
Airflow Measuring System Using Piezometer Ring – IM-105
IM-105 Piezometer Ring June 2021 Installation, Operation & Maintenance Manual REVIEW AMCA BULLETIN 410 PRIOR TO INSTALLATION This manual has been prepared to guide the users of an airflow measuring system using a piezometer ring in the proper installation, operation and maintenance procedures to ensure maximum equipment life with trouble-free operation. For safe installation, startup and operational life of this equipment, it is important that all involved with the equipment be well versed in proper fan safety practices and read this manual. It is the user’s responsibility to make sure that all requirements of good safety practices and any applicable safety codes are strictly adhered to. Because of the wide variety of equipment covered in this manual, the instructions given here are general in nature. Additional product and engineering information is available at www.tcf.com. SAFETY NOTICE Refer to the safety section(s) in this manual prior to installing or servicing the fan. The most current version of this installation and maintenance manual can be found on our website at www.tcf.com/resources/im-manuals. Table of Contents Safety & Hazard Warnings ...........................................................................................................................................................................2 Shipping & Receiving ....................................................................................................................................................................................2 Handling ...................................................................................................................................................................................................... -
Controls, Start---Up, Operation and Troubleshooting Instructions
48/50HJ004---014, 50HJQ004---012, 48/50HE003---006 50HEQ003---006, 48/50TM004---014 R T U --- M P ( M u l t i --- P r o t o c o l ) 2 . x C o n t r o l l e r BACnet, Modbus, Johnson N2, and LonWorks Controls, Start---Up, Operation and Troubleshooting Instructions TABLE OF CONTENTS START--UP........................................ 17 SAFETY CONSIDERATIONS......................... 2 Field Service Test.................................. 17 GENERAL......................................... 2 Configuration.................................... 17 ACCESSORY/SENSOR INSTALLATION................ 2 Unit.......................................... 17 Field--Supplied Hardware............................ 2 Cooling........................................ 17 User Interface...................................... 2 Heating........................................ 18 Install Sensors..................................... 5 Inputs......................................... 18 Space Temperature (SPT) Sensor Installation............ 5 Economizer.................................... 19 IAQ.......................................... 19 Indoor Air Quality CO2 Sensor Installation (IAQ)........ 7 Clock Set...................................... 19 Outdoor Air Quality CO2 Sensor Installation (OAQ)...... 7 Outdoor Air Temperature Sensor.................... 10 UserPW....................................... 19 Space Relative Humidity Sensor (SPRH).............. 12 Sequence of Operation.............................. 19 Outdoor Air Relative Humidity Sensor (OARH)........ 12 Scheduling.................................... -
Cd100 & Cd100e Dehumidifier
To Buy: Visit www.sylvane.com or call (800) 934-9194 For Product Support: Contact Ebac USA at (757) 873 6800 CD100 & CD100E DEHUMIDIFIER SPECIFICATIONS Specifications CD100 CD100E Features CD100 CD100E Model No. 1133560 1027500 Model No. 1133560 1027500 16.0” 16.0” On/Off Control Height (406mm) (406mm) (Via The Humidistat) Width 36.0” 36.0” Electronic Defrost Control (914mm) (914mm) Compressor Type Reciprocating Reciprocating Depth 20.0” 20.0” Fitted Mains Plug (508mm) (508mm) Free Standing 135 lbs 135lbs Wall Mounting Bracket Weight O (61kg) (61kg) ( = Inc, O = Optional) Voltage 110 V110V Adjustable Control Phase 1 1 Humidistat Frequency 60 Hz 60 Hz Reverse Cycle Defrost Current 16 A 16 A System Power 1090 W 1090 W Hours Run Meter - 700cfm 700cfm High Level Cut-out Switch Airflow (1190m3/hr) (1190m3/hr) Voltage Free Remote Alarm Noise Level 66 dba 66 dba Connector - Refrigerant R407c R407c Carrying Handle / Skid - 10,594 cu.ft 10,594 cu.ft Power On Indicator - Effective Volume (300m3) (300m3) Concealed Humidistat Typical Extraction 97 ppd 97 ppd (Alarm & Control) - Minimum Operating Temp 33°F (1°C) 33°F (1°C) Adjustable Alarm Maximum Operating Temp 95°F (35°C) 95°F (35°C) Humidistat - Epoxy Powder Coating Gravity Drain (1/2” O/D) APPLICATION The EIPL CD100 range are versatile workhorses, designed to eliminate high humidity problems in harsh environments. Warehouses, storage rooms, electrical and communications switching stations, locker rooms, basements, pumping stations, offshore oil rigs and active and laid-up marine vessels have all found this rugged range of units to be more than adequate for the tasks. -
Optimization of Heat Exchanger Design and Fan Selection for Single Stage Refrigeration/Heat Pump Systems T
Purdue University Purdue e-Pubs International Refrigeration and Air Conditioning School of Mechanical Engineering Conference 1986 Optimization of Heat Exchanger Design and Fan Selection for Single Stage Refrigeration/Heat Pump Systems T. H. Kuehn Follow this and additional works at: http://docs.lib.purdue.edu/iracc Kuehn, T. H., "Optimization of Heat Exchanger Design and Fan Selection for Single Stage Refrigeration/Heat Pump Systems" (1986). International Refrigeration and Air Conditioning Conference. Paper 24. http://docs.lib.purdue.edu/iracc/24 This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact [email protected] for additional information. Complete proceedings may be acquired in print and on CD-ROM directly from the Ray W. Herrick Laboratories at https://engineering.purdue.edu/ Herrick/Events/orderlit.html OPTIMIZATION OF HEAT EXCHANGER DESIGN AND FAN SELECTION FOR SINGLE STAGE REFRIGERATION/HEAT PUMP SYSTEMS THOMAS H. KUEHN Thermal Environmental Engineering Division, Department of Mechanical Engineering. University of Minnesota, Minneapolis, Minnesota, U.S.A. 1. INTRODUCTION Thermodynamic second law analysis can be employed to determine where losses occur in a given system. Inputs to this analysis include thermodynamic state information, mass flows, work transfers and heat exchange. Applications to vapor compression refrigeration and heat pump systems are outlined in references /1/ and /2/. However additional details of the processes are required to identify the nature of the losses. From this detailed information one can then begin to develop simple models useful in component or system thermodynamic optimization. A thermodynamic second law analysis is performed on an air cooled single stage mechanical vapor compression refrigeration system operating steadily under full load. -
ELIMINATOR™ FOUNDATION VENT FAN Model: EL-1 and EL-1R
ELIMINATOR™ FOUNDATION VENT FAN Model: EL-1 and EL-1R English .....Page 1 Français ...Page 5 Espanõl ....Page 8 This product is designed for ventilating or circulating air through crawl spaces of homes. By maintaining constant air flow through the crawl space, problems such as fungus growth, dry rot, and radon gas will be reduced or eliminated. An integral temperature switch allows fan operation only at air temperature above 50 ° F. EL-1 UNIT INCLUDES: 120 volt ELIMINATOR™ fan unit with integral temperature fan control and mounting hardware. OPTIONAL CONTROL: EDH Eliminator™ De-Humidistat: 120 volt De-Humidistat to allow operation of fan at a set humidity level of the crawl space. READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY BEFORE PROCEEDING WITH THE INSTALLATION. This device MUST be installed by a qualified agency in accordance with the manufacturer's installation instructions. The definition of a qualified agency is: any individual, firm, corporation or company which either in person or through a representative is engaged in, and is responsible for, the installation and operation of HVAC appliances, who is experienced in such work, familiar with all the precautions required, and has complied with all the requirements of the authority having jurisdiction. Please retain these instructions after installation. Installed By: Phone: Installation Date: www.fieldcontrols.com MOUNTING LOCATION AND MOUNTING REQUIREMENTS 1. Locate fan on crawl space vent areas that do not have good cross flow ventilation. 2. The ELIMINATORTM fan unit must be mounted onto an existing or new crawl space vent that has a grill mesh construction. (see mounting instructions) 3. -
Cooling Your Home with Fans and Ventilation
DOE/GO-102001-1278 FS228 June 2001 Cooling Your Home with Fans and Ventilation You can save energy and money when Principles of Cooling you ventilate your home instead of using your air conditioner, except on the hottest Cooling the Human Body days. Moving air can remove heat from Your body can cool down through three your home. Moving air also creates a wind processes: convection, radiation, and per- chill effect that cools your body. spiration. Ventilation enhances all these processes. Ventilation cooling is usually combined with energy conservation measures like Convection occurs when heat is carried shading provided by trees and window away from your body via moving air. If the treatments, roof reflectivity (light-colored surrounding air is cooler than your skin, roof), and attic insulation. Mechanical air the air will absorb your heat and rise. As circulation can be used with natural venti- the warmed air rises around you, cooler air lation to increase comfort, or with air con- moves in to take its place and absorb more ditioning for energy savings. of your warmth. The faster this convecting air moves, the cooler you feel. Ventilation provides other benefits besides cooling. Indoor air pollutants tend to accu- Radiation occurs when heat radiates mulate in homes with poor ventilation, and across the space between you and the when homes are closed up for air condi- objects in your home. If objects are tioning or heating. warmer than you are, heat will travel toward you. Removing heat through ventila- tion reduces the tem- perature of the ceiling, walls, and furnishings.