0000001726 00000 n Of course, everything should be tested multiple times by different authorities to ensure proper sequence of operation. The wiring diagram graphics here are for illustration purposes only. 0000038860 00000 n When the space pressure is greater than the return air pressure drop and outdoor atmospheric pressure, the gravity relief air damper opens and provides the required exhaust operation. Figure 1. air terminal units – single duct variable air volume . revision: 1.0 . Sequence Control Sequence control, also called lead/lag control, is used if two or more pieces of the same item of equipment (such as pumps, chillers, or compressors) are installed in a system. Model ERCH offers a wide variety of configurable options from intake and discharge orientations to factory tested and proven control sequences. A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of an air-handling system or in the exhaust gases of an industrial process, in order to recover the heat energy. SELECTING A SYSTEM. Installation, Operation, & Maintenance o Do not store gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance o WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance. 0000009266 00000 n Figure 1 shows how these modes are defined as a function of dry bulb temperature. When the space pressure is greater than the return air pressure drop and outdoor atmospheric pressure, the gravity relief air damper opens and provides the required exhaust operation. No need to bog yourself down with additional equipment right away. Provides energy saving heat recovery ventilation via a new heat exchanger with high temperature and enthalpy recovery efficiency; Superior performance such as high static pressure with a high efficiency fan and the capability for use in a wide range of climates (5 to 122°FDB and 80% RH or less) Post photos, respond to polls and access other special features. Emergency Operation of Elevator Systems Subject: A helpful guide for establishing emergency operations criteria Keywords: fire service recall, earthquake reset, emergency power operation, manual operation, stalled elevator, extreme weather Created Date: 6/13/2007 8:52:00 AM 0000014014 00000 n 0000050245 00000 n The ERU has a range of technology using satellite phone systems, high-frequency and very high frequency radio systems and VSAT, depending on the geographical location and needs. † Correct operating charge and refrigerant type † Unit test pressures and ma ximum operating pressures † Unit literature Serial Number. • Reliable operation • Minimal maintenance • Many successful installations • Extended 3 and 5-year service contract available for wheel • Highest engineering expertise in the industry. date: july 22, 2011 . 5 TECHNICAL GUIDE EP SYSTEMS AVAILABLE EQUIPMENT CONFIGURATIONS EPH, EPC, EPHC Products air terminal units – single duct variable air volume . The service model represents Participate in over 40 different forums and search/browse from nearly 3 million posts. Other variants include enthalpy wheels and desiccant wheels. 0000001372 00000 n with hot water reheat or electric heat . An air cooled condenser (ACC) is a direct dry cooling system where steam is condensed inside air-cooled finned tubes. Annexair is a privately held North American company established in 1998. 0000028884 00000 n The majority of our product lines incorporate a variety of advanced energy recovery technologies which are designed for commercial, institutional and industrial applications. document: vav-htg rev1 . In many cases it is code ( schools) and in other cases it constitutes make up air for contaminated exhaust air (laboratories). The #1 question asked by NEW MEMBERS. exhaust systems are practical, cost-effective, and energy efficient SAFE solutions for all of your critical air exhaust needs.. The result is a product that is specifically designed to condition 100% outdoor air to desired supply conditions. date: july 22, 2011 . Consequently, many HVAC service contractors are increasingly confronted with desiccant wheel repair, service and replacement work, as these systems reach the end of their lifecycles. It is necessary to follow these instructions to avoid personal injury or damage to equipment or property during equipment installation, operation, and maintenance. Check all fasteners, set screws on the fan, wheel, bearings, drive, motor base, and accessories for tightness. The slices are creamy in texture. We are focused exclusively on designing and manufacturing high-quality, energy-efficient air handling systems. Figure 1. wg 0000008040 00000 n Try our slices on your hamburger or nachos, too. Strobic Air Technologies’ Tri-Stack ®. The unit serial number provides the specific chiller identity. The majority of our product lines incorporate a variety of advanced energy recovery technologies which are designed for commercial, institutional and industrial applications. The 62X Series dedicated outdoor air unit utilizes variable capacity compressors on the lead circuit and efficient scroll compressors on the lag circuit, that have been optimally designed for use with Puron® refrigerant (R410A). 0000001393 00000 n 1,000 - 10,000 cfm ; Up to 1.75 in. 3 or 4 Flame is detected without call for heat If voltage is not present, check for gas flow. revision: 1.0 . 0000044156 00000 n into operation. Our Address. 0000033891 00000 n Components – Coils, Heaters, Motors, etc. ˟�����5��|Y$,?.��wX�{z��;Y~;��4�*V���Z�'�mMu������X1���������RrZ-�E�V����Y��O�\�`��+�7]-��ĺU��RRX%�ő5e,h�5@.��L�k+��>ZY%Q�5��ܝZ\M�"�(��+ �� q�1�!v1��8PS��%S]�|���� шX�x)~����#�! 100% oa vav preheat-cooling-er-single fan . ���� �e�� Total Operating Costs $90,000 $80,000 $70,000 $60,000 $50,000 $40,000 $30,000 $20,000 $10,000 Winter Spring Summer Fall Total $0 Innovent P-Series Mechanical Dehumidifier This chart compares the operational cost of the natatorium described above located in Atlanta. I've been coming across more and more ERU's spec'd out for public schools. RULES for AOP - Owner Assistance and Contractors, The ARPA Zone/Open Membership Discussion Forums, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories – Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. Always follow duct detector manufactures instructions and code for wiring. ����c�e=!���~aWK��f�� �F>-�f,��/0 .yUƸ���L�bCǿ�`� E�k� endstream endobj 76 0 obj 285 endobj 49 0 obj << /Type /Page /Parent 43 0 R /Resources 50 0 R /Contents [ 52 0 R 58 0 R 60 0 R 62 0 R 64 0 R 66 0 R 68 0 R 70 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 50 0 obj << /ProcSet [ /PDF /Text ] /Font << /F3 54 0 R /F4 55 0 R >> /ExtGState << /GS1 74 0 R /GS2 73 0 R >> >> endobj 51 0 obj 5190 endobj 52 0 obj << /Filter /FlateDecode /Length 51 0 R >> stream These systems provide effective energy recovery in both heating and cooling seasons. Unitized Energy Recovery Ventilator 300-6,200 CFM These ERVs work well both in retrofits or new construction rooftop units, fits all major brands of 2-30 ton rooftops and enable plug-and-play installation. 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