MAKEUP AND VENTILATION AIR 100% OUTSIDE AIR Kitchens Hotel Corridors Laboratories Conference CENTERS Schools Paint Booths Malls/Shopping Centers DOAS UNITS Capacities 5-35 Tons 50-800 MBH 30-120 kw 650-9,000 CFM
Conditioning Outside Air is Different Zone 8 Zone 7 Zone 6 Makeup & Ventilation Air Application Characteristics Up to 100% outside air Continuous conditioning of the air Extended operational time (up to 24 / 7) Precise unit CFM delivery Evade rain, snow & debris entrainment Modulated discharge air control Dehumidification ASHRAE Standard 62.1 (IAQ) ASHRAE Standard 90.1 Zone 2 Zone 5 Zone 3 Zone 4 Zone 1 CLIMATE ZONE MAP You need a makeup air system that can handle the extremes from a north Canadian winter to a south Florida summer. Get your FREE custom energy analysis software Ask your Reznor Agent for details Payback Software The Reznor edge is real world savings. Using condensing gas heat for your commercial make-up and ventilation air applications makes economic sense. The condensing technology maintains its efficiency throughout the modulated range. This increases energy saving to more than 15% over standard furnaces. The software provides reasonable prediction of energy & financial savings for makeup air applications. Ask your Reznor agent for Free custom energy analysis software.
Beyond Standard Rooftop Capabilities Packaged Makeup Air System The Reznor brand Model YDMA meets the specific needs required to keep indoor air quality high and process air flowing into the space. Performance Delivers clean, dehumidified tempered air in all weather or climate conditions. Lower Costs No matter what the season, you get superior energy performance, and tangible energy savings (see Reznor energy analysis software to determine payback). Reliability Robust construction delivers more usable life expectancy than conventional equipment. Easy Installation Avoid hassles with more factory installed options. No need to mix-and-match bolt-on options, or adjust pulleys and belts. Most features are factory installed or adjusted by settings on the control screen. Standards, Codes and Beyond The design professional is being asked to use more energy intensive dilution ventilation air while reducing the overall building energy usage by 30%. How do you implement evolving building standards requirements while minimizing cost? ASHRAE 62.1-2010 - ventilation air per building type and activity. ASHRAE 90.1-2010 - equipment efficiency. ASHRAE 189.1-2009 high performance green buildings. LEED - 30% more ventilation air using 30% less overall building energy. These standards and guidelines will be codified in the coming years. The solution: Use products designed to handle the ventilation with high efficiency gas and DX options. Typical Applications OA Occupancy Category CFM/person Health Club /Weight Room 26 Pet Shop 26 Beauty and Nail Salon 25 Pharmacy (prep area) 23 Aerobics Room 22 Disco/Dance Floor 21 Art Classroom 19 Wood/Metal Shop 19 Day-care 17 Laundry Room 17 Libraries 17 Office Space 17 Photo Studio 17 Science Lab 17 Retail Store 16 Classroom 15 Supermarket 15 Bowling Alley 13 Music/Theater/Dance 12 Coin-operated Laundries 11 Hotel Room 11 Museum 11 Barbershop 10 Break Room 10 Confinement Center 10 Lobbies 10 Restaurant Dining Room 10 Bar/Cocktail Lounge 9 Booking/Waiting Room 9 Cafeteria/Dining Room 9 Guard Station 9 Gym Spectator Area 8 Lecture Room 8 Multi-Use Assembly 8 Reception Area 7 Conference/Meeting Room 6 Courtroom 6 Place of Worship 6
Features Corrosion Proof, Double Slope, Condensate Drain Pan - Exceeds Standard 62.1-2010 Supply Fan VFD - Standard 10:1 Gas Modulation - Stable Temperature Control Heating Don t worry about pipes freezing or blowing cold air on a person in extreme weather conditions. Model YDMA heating systems are designed to handle extreme weather conditions as well as spring time light-load days. The heating system can provide 100 F rise with turn down as low as 10% with gas control. 5:1 or 10:1 gas modulation 92% & 80% gas heating efficiency Constant thermal efficiency gas heating during modulation 409 stainless steel heat exchangers SCR electric heat modulation ANSI 283.8 certified Anti-cycle program Safeties and alarms Condensate neutralizer Slide-out service & inspection Cooling Allowing large volumes of hot untreated air to enter a conditioned space will cause occupant discomfort and loss of environmental control. Therefore, 100% outside air means treating the air in all weather conditions. From 55 F through 115 F the mechanical cooling system operates to properly condition the air, meeting the needs of your application. Energy efficient digital scroll compressors 10%-100% capacity control ECM condenser fans Low ambient operation Corrosion-proof, double sloped drain pan Sound blankets Coil coating - 6,048 hours salt spray effectiveness Ozone friendly R410A Froststat, high and low pressure switch Anti-cycle programs Comparison of Systems 95% Reznor Deep Modulation Condensing Equipment Gas Modulation Efficiency Total cost of ownership is the truest measure of value for your HVAC investment. The ability to modulate input allows greater control over constantly changing load conditions. Most heating systems lose over 6.25% of their thermal efficiency when modulating. Reznor models start with high efficiency and maintain that efficiency throughout the modulation range to maximize your HVAC investment dollars. Efficiency 75% 100% 75% 50% 25% 0% Firing Rate 90% 85% 80% Conventional HVAC Equipment Reznor Standard Modulation Equipment
Filtered Intake Hood - Exceeds Standard 62.1 Dehumidification There are times when the space temperature is satisfied, yet the air needs to be dehumidified and delivered to the space without affecting the space temperature. This is commonly referred to as Neutral Air. The Reznor Reheat Pump delivers dehumidified air at temperature values that will not affect the overall space condition. The independent system produces overall year-round energy savings and great part-load performance during mild spring and fall conditions. 15 F - 17 F minimum temperature rise (standard) Modulated capacity COP > 20 Verifiable and predictable performance ASHRAE Standard 90.1 compliant system High and low refrigerant pressure switches Low ambient operation Dehumidification Circuit - Meets Standard 62.1 & 90.1 Construction Makeup air and Ventilation applications place a strain on equipment because of the extended run times. In fact, for typical hotel corridor applications, the units run 24 hours a day 7 days a week. The Platform 125 Series is robustly designed for extended use. Features Foam panel double wall construction R13 insulation value Renewable/organic insulation material Safe bottom lifting Pre-painted G90 galvanized steel Hinged doors Lockable doors Dehumidification Operation Model YDMA dedicated reheat system, provides stable and predictable year round performance. The independent circuit design allows superior part load efficiency without the hassle of low ambient control. The digital capacity control reliably maintains a stable 52-55 F discharge air during the spring, summer and fall months from the pre-cool DX coil and primary DX coils. The independent reheat circuit then applies reheat back into the airstream as needed. The table shows actual unit performance during fall & spring conditions. Reheat Entering Air Conditions DX Reheat Leaving Unit Performance db/wb/dp Capacity Capacity db/wb dp Warm Spring Day 83/69 62.5 31% 100% 72/59.8 52 Rainy Fall Day 68/64 62 31% 87% 72/59.9 52 Cold & Raining 60/60 60 OFF 100% 72/60.8 53 Note: Dry bulb and wet bulb temperatures show dewpoint.
Supply Fan The supply fan is the heart of the system. We made ours long lasting. Direct drive plenum fan ABB VFD control (standard) Duct pressure control Building pressure control Constant volume Slide-out servicing Phase loss protection Power exhaust (optional) Adjustable constant volume Building static pressure Supply fan tracking Energy Recovery Energy recovery systems recover exhaust air energy and re-introduce it into the conditioned space. Model YDMA, with the energy recovery module, integrates this savings allowing greater application flexibility. Integrated power, controls, and mechanical ARI rated enthalpy wheel Superior sensible and latent performance Minimal cross contamination (less than 5%) Slide out servicing Optional low ambient control kit for temperatures below 10 F Electric preheat Standard filtration (MERV8) Standard barometric relief exhaust damper Can handle unbalanced air flows Enhanced Capacity Selection The YDMA allows for more combinations of heating and cooling than traditional units. For northern climates requiring extra heat or southern climates needing more cooling, the YDMA can handle it. Gas Heat Input (MBH) DX Capacity Size (Tons) 80% 92% 5-7.5 10 12.5 15 17.5 20 25 30 50 -- 75 -- 100 -- 125 -- 150 150 175 -- 200 225 300 -- -- 300 -- 375 400 -- 500 450 600 -- -- 600 700 -- 800 --
Controls Control System Makeup air applications push the limits on traditional control systems. The Model YDMA control system was specifically designed to meet these demanding applications. It has the ideal blend of custom unit performance without overwhelming the user with unnecessary setpoints, menus and confusing complex sequences. When needed, the unit gives the right information at the right time, but most of the time it works behind the scene just like you want it to. Features Standard unit mounted display Optional remote display(s) Native BacNet & Lon communication Test mode and start-up operation Controller level status lights Quick setpoint menus Permanent unit memory back-up Unit safeties Anti-cycle program Alarm & Recovery High discharge air temperature Low discharge air temperature No flow Failed sensor(s) Phase loss/ brownout Smoke Mechanical heat 5 alarms codes 10 error codes Mechanical cooling 7 alarm codes Intelligent system recovery Sequences of Operation Neutral air control Space temperature reset control Tempered air control Process control Supply air constant volume Supply air variable volume Duct static & building static Demand ventilation Exhaust fan matching Summer/winter fan speed Space fan speed control Manual & external control Power exhaust control Mixed air damper controls Duct static & building static Demand ventilation Exhaust fan matching Manual & external control Energy recovery System Integration Modern buildings are relying more on building wide automation systems to maintain proper control of the facility. The native BacNet control system has been specifically designed to be integrated in your BAS. This insures hassle free integration. In addition Lon protocols are also available. More importantly, the control system is intuitive and user friendly so that you don t have to be a computer to understand it.
Model YDMA -060-090 -120-150 -180 A -210 A -240 A -300 A -360 A BTU 60,000 90,000 120,000 150,000 180,000 210,000 240,000 300,000 360,000 Nominal Cooling Capacity Input Tons 5 7.5 10 12.5 15 17.5 20 25 30 kw 17.6 26.4 35.2 44.0 52.8 61.5 70.3 87.9 105.5 Nominal Airflow scfm 650-1500 975-1680 1300-3000 1625-3500 2000-4400 2275-5250 2600-5500 3400-7500 3900-9000 M 3 /hr 1104-2548 1656-2854 2209-5097 2761-5946 3398-7475 3865-8919 4417-9344 5776-12742 6626-15291 Compressor Quantity 1 1 2 2 2 2 2 2 2 Reheat Capacity (MBH) 34 34 or 51 34 or 51 51 or 72 High H75-H300 H100-H400 H100-H500 H150-H700 H200-H800 Efficiency Gas Heat Size B Very High G150-G300 G150-G600 G150-G600 G225-G600 Efficiency Electric Heat Size (kw) 30 30-60 30-90 20-120 30-120 Power C 208/3, 230/3, 460/3, & 575/3 60Hz 380/3 50Hz Natural Gas or Propane Heating Standard Efficiency (80%) High Efficiency (90%) A These sizes available in the fourth quarter of 2013. B See gas heating table for sizes, heating input and output values. High efficiency gas heating section is 80%ncv/88%gcv. Very high efficiency heating systems are 92%ncv/105%gcv. (Efficiency in North America are measured in ncv. Efficiency in Europe is measured in gcv.) C Size -060 also available in 230/1/60 power voltage. D Dual heat sections for better modulation control. Option MBH kw Code Input Output Input Output H50 50 40 15 12 H75 75 60 22 18 H100 100 80 29 23 H102 D 100 80 29 23 H125 A 125 100 37 29 H150 D 150 120 44 35 H175 175 140 51 41 H200 200 160 59 47 H202 D 200 160 59 47 H300 300 240 88 70 H400 400 320 117 94 H402 D 400 320 117 94 H502 D 500 400 147 117 H602 D 600 480 176 141 H702 A D 700 560 205 164 H802 A D 800 640 234 188 G150 150 138 44 40 G225 225 207 66 61 G300 300 276 88 81 G302 D 300 276 88 81 G372 D 370 340 108 99 G452 D 450 414 132 121 G525 A D 525 483 154 142 G602 A D 600 552 176 162 Complete Platform Solution The complete line of Reznor rooftop units can provide comfort for a wide variety of conditions. Select the one right for your specific application. YDSA - Space Conditioning YDHA - High Outside Air Volume YDMA - Makeup and Ventilation Air For complete catalog information including submittals, energy calculations, dimension drawings, and more go to or call 800-695-1901. Note: In keeping with our policy of continuous product improvement, we reserve the right to alter, at any time, the design, construction, dimensions, weights, etc., of equipment information shown here. 2014 Reznor, LLC. All rights reserved. Printed in U.S.A. Reznor is registered in at least the United States. All other marks are the property of their respective organizations. 0614 OG 2.5K Form MC-YDMA (Version A.3)