DX SERIES DIRECT EXPANSION ENERGY SAVING AIR DRYER

DX DIRECT EXPANSION ENERGY SAVING AIR DRYER 400 to 3000 scfm Features: Digital Scroll Compressor Qualifies for energy rebates www.macair1.com Setting a new standard in Quality and Reliability

DX Series Direct Expansion Energy Saving Air Dryer with Capacity Modulation Control TM For decades non-cycling, direct expansion refrigerated air dryer has proven to be most effective and reliable method of lowering dew point and removing moisture from compressed air systems throughout industry. The non-cycling, direct expansion air dryer design uses a refrigerant vapour expansion/ compression cycle to directly cool compressed air stream. The moisture in air condenses to a liquid and is separated from air stream and drained away. This dryer design is fitted with a hot gas bypass valve that prevents compressed air in evaporator (air to refrigerant heat exchanger) temperature from dropping below freezing point and blocking air flow. The down side to this design is that it runs at or near full power regardless of amount of air flow going through dryer. Now re is a better alternative Today, more than ever before, need to reduce power consumption and lower energy costs is paramount. engineers have developed DX series direct expansion energy saving air dryer featuring revolutionary digital scroll compressor. The DX series dryer is able to match its power consumption in direct proportion to current load on dryer. The control system is called Capacity Modulation Control tm. Pressure transducers coupled by a closed loop digital controller instantaneously unloads digital scroll compressor during periods of low air flow. When compressor is unloaded it is doing no work. When in unloaded position power consumption is reduced by 90%. The DX series dryer delivers accurate and consistent dew point control from 0 to 100% load conditions and reduces power consumption up to 90%. Qualifies for energy rebates Reliable Energy Saving Performance DX Series Energy Saving Dryer Power Consumption vs Inlet Air Actual Capacity DX series power consumption Non-Cycling, direct expansion dryers power consumption vs Inlet Air Actual Capacity Non-Cycling dryer power consumption Power consumption 100 80 60 40 20 DX series power consumption Power consumption % DX series power consumption Air flow rate Power consumption 100 80 60 40 20 Power consumption % Air flow rate 0 10 20 30 40 50 60 70 80 90 100 Air flow rate 0 10 20 30 40 50 60 70 80 90 100 Air flow rate

Reduces operating costs up to 90% Capacity Modulation Control tm On most compressed air systems actual air usage varies widely most of time. This means that load on dryer is constantly fluctuating. The Capacity Modulation Control system consists of a closed loop digital controller and pressure transducers. When air flow going through dryer decreases a signal is sent to digital scroll compressor to unload and stop pumping refrigerant to evaporator. During this unloaded state dryer power consumption is reduced by 90%. When air flow increases compressor is loaded and resumes pumping refrigerant. The result is up to 90% reduction in power consumption and operating costs. Qualifies for energy rebates Reliable Energy Saving Performance Cycle Time The Digital Scroll operates in two stages loaded state, during which solenoid valve is normally closed and unloaded state, during which solenoid valve is open. During loaded state, compressor operates like a standard scroll and delivers full capacity and mass flow. However, during unloaded state, re is no capacity and no mass flow through compressor. At this stage, let us introduce concept of a cycle time. A cycle time consists of a Loaded State time, and an Unloaded State time (Figure 2). The duration of se two-time segments determines capacity modulation of compressor. By varying loaded state time and unloaded state time, any capacity between 10% and 100% can be delivered by compressor.

DX Series Direct Expansion Energy Saving DX Series Modulation ControlTM Air Dryer with Capacity Direct Expansion Energy Saving Air Dryer w/ Capacity Modulation Control TM PUTTING IT ALL TOGETHER THE DX Series air dryer featuring a digital CLD Controller tm PUTTING TOGEATHERcompressor THE DX Series air scrollit ALL refrigeration and CLD Controller tm dryer featuring scroll refrigeration capacitya digital modulation control compressor is only and capacity modulation respond only type ofduring air type of air dyercontrol that iswill dyer that will respond during periods of lower comperiods of lower compressed air usage pressed usage by unloading refrigeration combyairunloading refrigeration compressor pressor reby reducing power consumption of reby reducing power consumption dryer down to 10% of its typical full power (watts) of dryer down to 10% of its typical full running requirements. The beauty of this technology is power (watts) running requirements. The its inherent simplicity. The standard Scroll has a unique beauty of this technology is it s inherent feature called axial compliance. This allows fixed simplicity. The standard Scroll has a Digital DigitalScroll Scroll Compressor Compressor tm tm scroll to move slightly in axial direction to ensure unique feature called axial compliance. that fixed and orbiting scrolls always engaged This allows fixed scroll to move toger with optimal force. This optimal force, in axial direction to ensure which slightly holds two Scrolls toger at all operating that ensures fixed and orbiting conditions, high efficiency of Scroll. scrolls The Digital always engaged toger with optimal Scroll operation builds on this principle. A piston is fixed optimal force, which holds to force. top scrollthis to ensure that when piston moves toger operating up, top two scrollscrolls also moves up. Thereatis all a modulation chamber at top of piston that is connected to conditions, ensures high efficiency of discharge through a bleed hole of diamescroll. pressure The Digital Scroll operation builds ter 0.6on mm. An principle. external solenoid valve connects this A piston is fixed to modulation chamber with suction side pressure. top scroll to ensure that when piston When moves solenoid in closed position, up. up,valve istop scroll also moves pressure on eir side of piston is discharged and a There is a modulation chamber at spring force ensures that two scrolls loaded totop of piston that is connected to ger. When solenoid valve is energized, disdischarge pressure through a bleed hole charge gas in modulation chamber is relieved to of diameter 0.6 mm. An external solenoid low pressure. This causes piston to move up and valve connects modulation chamber consequently top scroll also moves up. This action with suction side pressure. When separates scrolls and results in no mass flow solenoid valve is in closed position, through scrolls. At this point power consump Modulation range of full load pressure eir side piston tion is reduced by 90%.on De-energizing of external socapacity: 10-100% discharged a spring fully force ensures lenoid is valve again loads and compressor and Significantly reduces compressor that two scrolls loaded toger. compression is resumed. wear and tear by eliminating range of full load capacity: 10When solenoid valve is energized, Modulation compressor start-stops. 100% discharge gas in modulation chamber Precise control of system refrigerant Significantly reduces compressor wear and is relieved to low pressure. This causes pressures. tear by eliminating compressor start-stops. piston to move up and consequently Precise control of system refrigerant Eliminates energy wasting hot gas pressures. top scroll also moves up. This action bypass valves. Eliminates energy wasting hot gas bypass separates scrolls and results in no Provides low consistent dew points valves. from 0 to 100% compressed air flowfrom 0 mass flow through scrolls. At this point Provides low consistent dew points capacities. to 100% compressed air flow capacities. power consumption is reduced by Reduces operating costs upuptoto90% Reduces operating costs 90% 90%. De-energizing external solenoid valve again loads compressor fully and compression is resumed.

Non-Cycling Dryer Design vs DX Series Energy Saving Dryer Typical Non-Cycling dryers use a hot gas bypass valve and run continuously to control flow of refrigerant and maintain a stable dew point. Energy consumption remains at or near full power regardless of air demands. While this type of dryer delivers steady 38 F dew point it is very energy inefficient. The DX series dryer does not have a hot gas bypass valve. By loading and unloading refrigerant compressor DX series dryer delivers steady and constant 38 F dew point air while also providing reliable energy savings during periods of low air flow. There is only one way to determine actual cost of an air dryer. Initial Cost + Operating Cost = Actual Cost Guaranteed Annual Energy Reduction and Operating Costs Savings with DX Series Energy Saving Air Dryer. Non-Cycling Dryer DX Series Energy Non-Cycling Dryer DX Series Energy w/hot Gas Bypass Saving Dryer w/hot Gas Bypass Saving Dryer DRYER MODEL SCFM 500 DX500A 1000 DX1000A PRESSURE DEWPOINT 39 F 39 F 39 F 39 F INITIAL DRYER COST $8099. $12485. $12915 $16595. ENERGY CONSUMPTION PER YEAR (kwh) 25134 20935 48300 43940 ENERGY COSTS PER YEAR IN U.S.D. $3529. $881. $4347 $1852. 1st YEAR COSTS $11854. $13366 $17,262 $18447 5 YEAR COSTS* $26874. $16890 $34,650. $25855. Save 37% Save 25% *Based on a 3 shift operation @ $.09/ kwh ANNUAL ENERGY COSTS @ 100% RATED INLET AIR FLOW % 75% 50% 25% 0% CAPACITY ENERGY SAVINGS % 22% 46% 67% 91% MODEL ANNUAL ENERGY SAVINGS $ PER YEAR BY MODEL AT LESS THAN 100% RATED CAPACITY $2938. DX500A $646 $1351 $1968 $2674 $3272. DX625A $720 $1505 $2192 $2978 $3916. DX800A $862 $1801 $2624 $3564 $5045. DX1000A $1110 $2321 $3380 $4591 $6175. DX1200A $1359 $2841 $4137 $5619 $7533. DX1600A $1657 $3465 $5047 $6855 $10,796. DX2000A $2375 $4966 $7233 $9824 $12,095. DX2500A $2661 $5564 $8104 $11,006 $13,395. DX3000A $2947 5 $6162 $8975 $12,189

DX Series Direct Expansion Energy Saving Air Dryer with Capacity Modulation Control TM QUALITY FEATURES - MADE IN THE USA DIGITAL SCROLL REFRIGERANT COMPRESSOR (Patented) Increased efficiency by precisely matching compressor output to inlet air load on dryer. Capacity modulation between 10% and 100% is achieved quickly and smoothly reducing operating costs up to 90%. CLD CONTROLLER Is a closed loop digital controller that precisely monitors refrigeration system high side and low side pressures, cycles condenser fan motors on and off, loads and unloads digital scroll compressor based on current heat load (Air flow) going through dryer. Refrigerant Suction Pressure readout Refrigerant Discharge pressure readout Condenser fan on/ off indicators ADX HEAT EXCHANGER MODULE The ADX heat exchanger module combines air to air, air to refrigerant and moisture separator in one compact corrosion proof module. Because of compact design and no interconnecting piping pressure drop average of 2.0 psid is lowest in dryer industry. SIMPLE, RELIABLE CONTROLS Suction Pressure Gauge Discharge Pressure Gauge Inlet Air Temperature Gauge On-Off switch Power on light DIGITAL DEWPOINT INDICATOR Electronic temperature monitor gives continuous 3/4 high read out of lowest air temperature inside air to refrigerant heat exchanger NO LOSS CONDENSATE DRAIN VALVE is an electronically controlled level sensing drain system designed to efficiently discharge condensate from your compressed air system. By minimizing loss of compressed air during discharge overall plant efficiency is improved by reducing cost of compressed air production.

SPECIFICATIONS & DIMENSIONS MODEL INLET AIR CAPACITY (1) POWER PRESS. IN/ OUT DIMENSIONS (IN) DROP CONN WGT TYPE SHIP REF VOLTAGES SCFM Nm3/ hr kw PSID SIZE W L H (LBS) v/ph/hz DX400A 400 679 3.36 1.95 2 NPT 29 46 37 515 DX500A 500 849 3.36 2.0 2 NPT 29 46 37 525 DX625A 625 1061 4.47 2.0 3 NPT 29 46 37 535 Standard DX800A 800 1365 5.01 2.10 3 NPT 35 50 59 855 380-420/3/50 DX1000A 1000 1605 6.91 2.15 3 NPT 35 50 59 875 R404A 460/3/60 DX1200A 1200 1926 7.05 2.13 3 NPT 35 50 59 925 DX1600A 1500 2247 7.30 2.30 4 NPT 35 50 59 1395 Optional DX2000A 2000 3210 12.32 2.10 4 NPT 40 56 72 1795 575/3/60 DX2500A 2500 4494 17.20 2.95 6 FLG 40 69 72 1985 DX3000A 3000 5457 18.01 2.25 6 FLG 40 69 72 2100 1. Dryer inlet air capacity is based on ISO7138 conditions: Inlet Air at 100 psig and 100 F (38 C) saturated, ambient air at 100 F (38 C), operating on 60 Hz power supply. 2. kw power rating is based on 460v/3ph/60hz power supply. 3. Air-cooled condensers standard on all models. Water-cooled available. 4. H Series pre-filter is recommended installed before dryer. Correction Factors for Inlet Air Pressure and Temperature Inlet Air Pressure Inlet Air Temperature PSIG 90 F 100 F 110 F 120 F 130 F 30.91.70.55.45.34 50 1.05.80.68.55.46 80 1.15.95.75.62.50 100 1.20 1.82.69.57 125 1.25 1.05.87.73.62 150 1.32 1.10.91.76.65 175 1.35 1.12.93.80.67 200 1.39 1.15.95.85.69 Correction Factors for Ambient Temperatures* Ambient Temperatures 80 F 90 F 100 F 110 F Multiplier 1.12 1.06 1.00.95 *Applys only to air-cooled dryers. For water-cooled use a 1.15 mult. (Water temp must be below 80 F) Correction Factors for Dew point Temperatures* Ambient Temperatures 38 F 45 F 50 F Multiplier 1 1.24 1.29

The DX series dryers take energy savings to anor level. Problems inherent in or energy saving air dryer designs such as dew point spikes, compressor cycling, improper lubrication, high initial costs have been eliminated. The DX series dryer is able to match its power consumption in direct proportion to current load providing benefits of an energy saving dryer at cost level of a non-cycling dryer. is an independently owned and operated company located in Walled Lake, MI USA that specializes in manufacturing compressed air treatment equipment for all commercial and industrial markets. There thousands of our systems installed worldwide in every type of industry. The following several customers: MEIJERS FORD MOTOR CO THE FOLLOWING ARE FEW COMPANIES THAT HAVE SELECTED THE FOLLOWING ARE A FEW COMPANIES THAT HAVE SELECTED THE FOLLOWING AAFEW COMPANIES THAT HAVE SELECTED ARE DETROIT CHROME COPELAND TO PROTECT THERE PLANTS AIRAIR SYSTEMS JIFFY MIXPROTECT TO PROTECT THERE PLANTS SYSTEMS EMERSON ELECTRIC TO THERE PLANTS AIR SYSTEMS AMTRAK FEDERAL RESERVE MOISTURE AND CONTAMINATES: MOISTURE AND CONTAMINATES: MOISTURE AND CONTAMINATES: DANA U.S. AIR FORCE FORD MOTOR CO.CO. FORD MOTOR FORD MOTOR CO. WHIRLPOOL COPELAND COPELAND COPELAND Made In USA Quality FEDERAL RESERVE FEDERAL RESERVE FEDERAL RESERVE takes craftsmanship of quality air dryers seriously. That s what Made in USA moniker is proudly U.S. AIR FORCE U.S. AIR FORCE AIR FORCE displayed. All dryers handmade U.S. by highly skilled and WHIRPOOL experienced craftsman in Walled Lake, Michigan USA. WHIRPOOL WHIRPOOL MEIJERS MEIJERS MEIJERS The Finest in American Craftsmanship DETROIT CHROME DETROIT CHROME CHROME creates air dryers that embody DETROIT traditional American values of quality, performance and durability that JIFFY MIX (CHELSEA MILLING CO) part of our countries heritage. JIFFY JIFFY (CHELSEA MILLING CO) MIXMIX (CHELSEA MILLING CO) AMTRAK AMTRAK AMTRAK DANA DANA DANA 5 YEAR WARRANTY DX Series covered by a two year warranty. YEAR WARRANTY 5dryers YEAR WARRANTY 55YEAR WARRANTY When DX series dryer is purchased with matching HXSeries Series dryers covered aby two year warranty. When HX HX HX HX Series covered a year two year warranty. When HX dryers by two warranty. When H Series pre fidryers lter covered warranty isbyaextended an additional series dryer purchased withwith matching Series prefilter filterfilter warranty warranty series dryer is purchased matching H Series pre warranty series dryer isispurchased with HHSeries pre isis is 3 years on allmatching major components. extended an an extended extended an additional 3years years noallall major components. additional 3 years nomajor alldetails) major components. warranty guidelines for additional 3(See no components. OTHER AVAILABLE OTHER AVAILABLE OTHER AVAILABLE MHRMHR HEATLESS HEATLESS MHR HEATLESS MHR HEATLESS H HH H FILTERS FILTERS FILTERS FILTERS MD MD MD MD CAPACITY CAPACITY CAPACITY CAPACITY MHTMHT MHT MHT TEMP TEMP TEMP TEMP DISTRIBUTED BY: BY: DISTRIBUTED DISTRIBUTED BY: 4123 PIONEER DR WALLED LAKE, MI 48390 248-624-6300 248-624-0622 FAX sales@macair1.com www.macair1.com DX series Sept 2014