Product Data. Features/Benefits. 62AQ Energy$Recycler Energy Recovery Accessory For 3 to 12.5 Ton Rooftops. 600 and 1000 Nominal Cfm

Product Data 62AQ Energy$Recycler Energy Recovery Accessory For 3 to 12.5 Ton Rooftops 600 and 1000 Nominal Cfm Carrier s 62AQ Energy$Recycler units are rooftop accessories that recover energy from building exhaust air and pre-condition ventilation air. These units are designed to satisfy the new higher ventilation requirements and other building codes while minimizing the cost of energy. Advantages include: designing to ASHRAE (American Society of Heating, Refrigeration, and Air Conditioning Engineers) Standard 62 UL and UL, Canada listed a variety of sizes to meet most application requirements dehumidification 62AQ ENERGY$RECYCLER Features/Benefits One-piece unit provides efficiency, cost savings, dependable performance and easy maintenance. Units are ideal for hotels, dormitories, restaurants, hospitals, retail establishments, theaters, schools, and office buildings. Better air quality is provided by introduction of fresh outdoor air to meet ASHRAE 62 requirements. Reduced energy costs compared to heating and cooling systems without the Energy$Recycler unit. Improves indoor air quality by allowing increased ventilation air to meet ASHRAE 62 requirements. Pre-treats the outside air before it enters the rooftop. Ventilation air load handled by Energy$Recycler unit allows use of smaller rooftop units in most applications. Copyright 1999 Carrier Corporation Form 62AQ-1PD

Recovers energy from exhaust air by utilizing building exhaust for condenser air in cooling mode or evaporator load in heating for efficient operation and energy savings when compared to untreated outside air. Easy to install and service, designed to attach directly to rooftop unit with accessory mounting kit. No additional curb or supports required. Single panel service access for exhaust air blower and major refrigerant circuit components. Maintenance-friendly units have rigid, foil faced, cleanable insulation and sloped, noncorrosive drain pans to meet ASHRAE 62P indoor air quality standards. Supply and exhaust air coils protected by 2-in. disposable filters to minimize need for frequent coil cleaning. Tool-less filter access provided. Cabinets are constructed of heavy duty, phosphate, zinc-coated prepainted steel capable of withstanding 500 hours in salt spray. Direct-drive multi-speed, PSC (permanent split capacitor) blower motors and adjustable air dampers provided for precise adjustment of supply and exhaust air volumes to meet customer requirements. PSC motors used to reduce energy consumption. Motor operated, spring return supply air damper and gravity operated barometric relief damper with adjustable stops provided to allow fine tuning of supply and exhaust airflows and positive shutoff in the event of power failure. Energy$Recycler the IAQ solution for today s tight buildings. Indoor-air quality (IAQ) generally refers to the level of pollutants inside a building. These pollutants include cigarette smoke, carbon dioxide exhaled by occupants, radon gas, car exhaust, paint fumes, and odors. Concern over increased indoor air pollutants has been spurred by several issues: 1) changes in new building construction methods and retrofit of older buildings have reduced air infiltration rates; 2) Synthetic materials release airborne particles, odors, and chemicals; and 3) HVAC (heating, ventilation, and air conditioning) systems that bring in minimal fresh air. In 1989, IAQ concerns caused ASHRAE to recommend increased ventilation for all public buildings. Simply introducing fresh air into a building, however, is not always practical or cost effective. Additional ventilation can overload HVAC systems and increase energy costs. Carrier s 62AQ Energy$Recycler unit solves this dilemma by providing increased fresh air while keeping increased costs to a minimum. In addition, the Energy$Recycler helps reduce humidity levels, which helps to prevent deterioration of building materials and retards the growth of mold and mildew. The 62AQ Energy$Recycler unit provides the best solution to retaining the energy-conserving benefits of today s tighter building construction while improving indoor-air quality. Table of contents Page Features/Benefits..................................... 1,2 Model Number Nomenclature.............................. 3 Capacities............................................ 3 Physical Data......................................... 4 Field-Installed Accessories................................. 5 Base Unit Dimensions................................... 6 Selection Procedure.................................... 7-9 Performance Data................................... 10-22 Electrical Data........................................ 22 Typical Installation..................................... 23 Typical Wiring Schematic................................ 24 Controls.......................................... 25-27 Application Data.................................... 28,29 Guide Specifications................................. 30,31 2

Model number nomenclature 62AQ 060 3 0 1 GA Model No. 62AQ Energy$Recycler Factory-Installed Options GA Supply Air Fan Nominal Airflow (cfm) 060 600 100 1000 Packaging 1 Standard Domestic Voltage (V-Ph-Hz) 3 230-1-60 Series Original Capacities UNIT SIZE NOMINAL SUPPLY AIR CFM NOMINAL EXHAUST AIR CFM LEGEND Bels Sound Levels (1 bel = 10 decibels) CFM Cubic Feet Per Minute of Air db Dry Bulb wb Wet Bulb GROSS COOLING* CAPACITY (Btuh) *GROSS DOES NOT INCLUDE FAN HEAT. NOTE: Ratings are based on: Cooling Standard: 95 F db, 75 F wb indoor entering-air temperature and 75 F db outdoor entering-air temperature. Heating Standard: 25 F db outdoor entering-air temperature and 75 db outdoor entering-air temperature. GROSS HEATING* CAPACITY (Btuh) TOTAL COMPRESSOR kw COOLING/HEATING SOUND RATING (Bels) 62AQ060 600 600 13.8 16.2.98/.536 7.2 62AQ100 1000 1000 22.5 24.4 1.46/.837 8.2 3

Physical data UNIT 62AQ 060 100 OPERATING WEIGHT (lb) 225 240 Accessory Mounting Kit (lb) 30 30 SHIPPING WEIGHT (lb) 245 260 COMPRESSOR Rotary Quantity 1 1 Oil (cc) 550 550 Suction Line Diameter (in.) 1 /2 1 /2 Discharge Line Diameter (in.) 3/8 3/8 Liquid Line Diameter (in.) 3/8 3/8 REGRIGERANT TYPE R-22 Operating Charge (lb) 2 3 CONDENSER COIL (SUPPLY COIL) High-Efficiency Enhanced Copper Tubes, Lanced Aluminum Fins TXV and Acutrol Feed Device Number of Circuits 2 3 Rows...Fins/in. 2...15 2...15 Total Face Area (sq ft) 1.4 2 EVAPORATOR FAN (EXHAUST AND OPTIONAL SUPPLY FAN) Centrifugal Type Size (Diameter...Width) 7.12...6 7.12...6 Nominal Cfm 600 1000 Hp 1 / 6 1 / 2 Motor Frame 48 48 Fan Rpm Range 1125 1735 Motor Bearing Type Ball Ball Maximum Fan Rpm 1950 1950 Nominal Motor Shaft Diameter (in.) 1 /2 1 /2 Type Direct Drive Fan Direct Drive Fan Number of Blades 32 32 EVAPORATOR COIL (EXHAUST COIL) High-Efficiency Enhanced Copper Tubes, Lanced Aluminum Fins TXV and Acutrol Feed Device Number of Circuits 2 3 Rows...fins/in. 2...15 3...15 Total Face Area (sq ft) 2 2 HIGH PRESSURE SWITCH (psig) Cutout 428 Reset (Auto.) 320 OUTDOOR-AIR INLET SCREEN Cleanable Quantity...Size (in.) 1...20x24x1 SUPPLY AND EXHAUST AIR FILTERS Throwaway Quantity...Size (in.) 1...12x24x1 LEGEND TXV Thermostatic Expansion Valve 4

Field-installed accessories Supply-air fan kits are available to upgrade 62AQ060301 and 62AQ100301 series units requiring higher than anticipated supply air volumes. Mounting rail kit is required for attachment of the Energy$Recycler on 3 to 12.5 ton Carrier units. Kits include telescoping crossrails and extender rails to support the Energy$Recycler unit, with several different holes to accommodate different rooftop unit sizes. The kit includes base rail extensions, cross members to support the 62AQ unit, return air baffle components, and associated hardware. No additional roof curb or supports are required to mount the 62AQ to the rooftop unit. Transformer kit provides use of 208/230 v single-phase Energy$Recycler unit on 460-3-60 v rooftop units. SUPPLY AIR FAN (ACCESSORY) ACCESSORY MOUNTING RAIL ROOFTOP UNIT 5

Base unit dimensions 62AQ060,100 UNIT ELECTRICAL CHARACTERISTICS UNIT WT. UNIT HEIGHT CENTER OF GRAVITY mm [in.] Lb Kg A X Y 62AQ060 208/230-1-60 225 102 809.4 [31.87] 419.0 [16.50] 279.4 [11.00] 62AQ100 208/230-1-60 240 109 809.4 [31.87] 419.0 [16.50] 279.4 [11.00] REQUIRED CLEARANCES TO COMBUSTIBLE MATL. MILLIMETERS [IN.] All Sides..................................... 0 [0] NEC REQUIRED CLEARANCES Between Unit (Control Box/Exhaust Side) and Ungrounded Surfaces................... 914.0 [36.00] And Block or Concrete Walls and Other Grounded Surfaces.................... 1066.8 [42.00] REQUIRED CLEARANCE FOR OPERATION AND SERVICING Filter Access Side...................... 762.0 [30.00] Supply-Air Intake....................... 914.0 [36.00] Unit Top..................................... 0 [0] Exhaust Air Side....................... 914.0 [36.00] Duct Side.................................... 0 [0] Must be attached to ductwork or mated to Carrier unit sizes (004-014) using accessory kit CRMTGKIT001A00. Dimensions are in inches. CG Center of Gravity Direction of Airflow 6

Selection procedure (with 50HJQ006 example) I II III Determine cooling and heating loads at design conditions. Given: Required Cooling Capacity (TC)......67,000 Btuh Sensible Heat Capacity (SHC)........46,000 Btuh Required Heating Capacity..........60,000 Btuh Outdoor Entering-Air Temperature db........95 F Outdoor Entering-Air Temperature wb........75 F Outdoor-Air Entering Airflow Cfm...... 450 Cfm Outdoor-Air Winter Design Temperature...... 0 F Indoor-Air Winter Design Temperature.......70 F Air to room including outdoor air...... 2000 Cfm External Static Pressure..... Supply 0.60 in. wg Return 0.2 in. wg Indoor-Air Temperature db (room air)........78 F Indoor-Air Temperature wb (room air)........65 F Indoor-Air Exhaust Cfm.............. 450 Cfm Electrical Characteristics (V-Ph-Hz)...... 230-3-60 Vertical discharge unit with Energy$Recycler required. Determine fan speed and power requirements at design conditions. Before entering the Fan Performance tables, calculate the total static pressure required based on unit component. From the given and the Accessory/FIOP Static Pressure of the 50HJQ Product Data book find: External static pressure supply 0.6 in. wg External static pressure return 0.2 in. wg Accessory static None 0.0 in. wg Total Static 0.8 in. wg Enter the Fan Performance table for vertical discharge, from the Fan Performance table of the 50HJQ006 at 0.80 in. wg at 2000 cfm the rpm is 1226 and bhp is 1.33. NOTE: Convert bhp to Fan Heat and Watts using the formula found in the note following the Indoor-Fan Motor Efficiency table from the 50HJQ Product Data book. For this example: Watts = (746 x Bhp)/(motor efficiency) Watts = (746 x 1.33)/(0.74) = 1341 watts Indoor Fan Heat = watts x 3.413 Btuh/watt = 1341 x 3.413 = 4577 Btuh Select Energy$Recycler based on Outdoor Entering Cfm. Entering Energy$Recycler see the Cooling Ratings table in the Capacities section of this book at 450 cfm entering outdoor airflow. Choose Model 62AQ060. Using 450 cfm outdoor supply airflow, 95 F OD DB, and 75 F OD WB find performance of the 62AQ060 at these conditions: Energy$Recycler Gross Cooling Capacity is 13,000 Btuh Energy$Recycler Gross Sensible Capacity is 10,090 Btuh Compressor power is 1.06 kw Energy$Recycler Leaving db is 73.0 F Energy$Recycler Leaving wb is 66.9 F IV V VI Using the simplified* method below, calculate the approximate mixed air temperature for the rooftop unit evaporator coil. Using the outdoor-air entering cfm, the room cfm and the room exhaust airflow with their respective db and wb temperatures, determine the db and wb entering the rooftop evaporator coil. a) Estimate the mixed air db to the evaporator coil. t mix db = ((cfm oa x t oa db) + ((cfm ra cfm exh) x t ra db)) / (cfm ao + (cfm ra cfm exh)) ((450 cfm x 73.0 F) + ((2000 cfm 450 cfm) x 78 F)) / (450 cfm + (2000 cfm 450 cfm)) Mixed air into the rooftop evaporator coil = 76.9 F db b) Estimate the mixed air wb to the evaporator coil. t mix wb* = ((cfm oa x t oa wb) + ((cfm ra cfm exh) x t ra wb)) / (cfm oa + (cfm ra cfm exh)) ((450 cfm x 66.9F) + ((2000 cfm 450 cfm) x 65 F)) / (450 cfm + (2000 cfm 450 cfm)) Mixed air temperature into the rooftop evaporator = 65.40 F wb *Simplified method of determining wet bulb (wb) temperature of mixture. This approximation is used because the wb lines in the area of the psychrometric chart in the area used in the calculation is relatively linear, providing a close approximation. A more accurate solution can be found using the E-Cat program. LEGEND cfm cubic feet per minute of air db dry bulb exh Energy$Recycler discharge mix mixture of outdoor + return air oa outside air leaving Energy$Recycler ra return air sa supply air at coil (sa = oa + ra exh) t temperature wb wet bulb Determine the cooling load requirement for the rooftop unit. Customer load is 67,000 Btuh Less TC supplied by the Energy$Recycler 13,000 Btuh Rooftop cooling load required is 54,000 Btuh Select the rooftop unit based on mixed air entering conditions and cooling load. Enter cooling capacity table at outdoor entering temperature 95 F, mixed air entering evaporator at 2000 cfm, 76.9 F db, and 65.4 F wb. The 50HJQ006 will provide a total gross cooling capacity of 59,420 Btuh and sensible cooling of 42,920 Btuh. Since these values were not at 80 F entering db, they were calculated based on the notes following the Cooling Capacity tables. NOTE: Unit ratings are gross capacities and do not include the effect of evaporator-fan motor heat. To calculate net capacities see Steps VII and VIII. 7

Selection procedure (cont) VII Select net heating capacity of unit to meet design condition requirements. Enter the Instantaneous and Integrated Heating rating table (from the 50HJQ Fan Performance Data section) for the rooftop at 2000 cfm. At 70 F return indoor air and 0 F air entering outdoor coil, the integrated heating capacity is 27,100 Btuh. (Select integrated heating capacity value since deductions for outdoor-coil frost and defrosting have already been made. No correction is required.) Enter the 62AQ060 Heating rating table at 450 cfm. At 70 F and 0 F find the heating value for the Energy$Recycler to be 15.2 Btuh. The customer heat requirement is 60,000 Btuh. Integrated Heat Capacity Rooftop 27,100 Btuh add Rooftop fan heat from Step II 4,577 Btuh Energy$Recycler Heat Capacity 15,200 Btuh add Energy$Recycler optional supply fan heat if supplied 0 Btuh Total Unit heat with Energy$Recycler 46,877 Btuh Determine additional electric heat capacity. The required heating capacity is 60,000 Btuh. Therefore, 13,123 Btuh (60,000 46,877) additional heat is required. Determine additional electric heat in kw. (13,123/3413 Btuh/kW) = 3.84 kw of heat is required. Enter 62AQ060 Heating tables, from page 10 of this book, for 50HJQ006 at 208/230, 3 phase. The 6.5 kw heater at 240 v most closely satisfies the heating required. To calculate kw at 230 v use the Multiplication Factors table. 6.5 kw x 0.92 = 5.98 kw 6.5 kw x 0.92 x 3413 Btuh/kW = 20,410 Btuh Total unit net heating capacity is 67,287 Btuh (46,877 + 20,410). VIII Determine net cooling capacity. Cooling capacities are gross capacities and do not include indoor (evaporator) or optional Energy$Recycler supply fan heat. Determine net cooling capacity using the following formula: Net Capacity = (Gross Capacity Rooftop Unit + Energy$Recycler) (Indoor [evaporator] fan motor [IFM] Heat + Optional Energy$Recycler Supply Fan Motor Heat) Gross Total Cooling Rooftop from run 59,420 Btuh Energy$Recycler 13,000 Btuh Total 72,420 Btuh Less IFM heat (from Step II) <4,577> Btuh Opt. Energy$Recycler Supply Fan Motor Heat none Net Total Capacity 67,843 Btuh IX X Gross Sensible Cooling Rooftop from run 42,920 Btuh Energy$Recycler 10,090 Btuh Total 53,010 Btuh Less IFM heat (from Step II) <4,577> Btuh Opt. Energy$Recycler Supply Fan Motor Heat none Net Sensible Capacity 48,433 Btuh Determine the operating watts of the rooftop unit and Energy$Recycler unit. Cooling with Energy$Recycler in operation: a) Rooftop unit: Refer to the 50HJQ Product Data catalog. Using the 50HJQ006 cooling capacity table and the calculations described in Step VI of this procedure, determine compressor watts 4,670 watts Indoor fan motor from Step II** 1,341 watts Outdoor fan motor from Physical Data table find 1 /4 hp Assume OD motor efficiency is 0.75. Watts = (746 x hp)/(motor Eff) = (746 x 1 /4)/(0.75) = 249 watts Dual circuit units will have two outdoor fans, double values. b) Energy$Recycler: Compressor watts from 62AQ060 Cooling Ratings table, page 7 1,060 watts Optional supply fan from fan curves none selected Exhaust fan operating watts from 62AQ060 Exhaust Fan Performance Curve at 230-v, 450 cfm, 0.2 in. wg, Static 110 watts. Total watts for the unit in operation at design conditions 7,430 watts Electrical data RLA, FLA, LRA, MCA and MOCP. Separate Power Supply: If the 62AQ is wired for separate power see the Electrical Data table. Single Power Supply with Unit: The unit is 230 v-3-60 Hz, so from the 50HJQ Product Data Electrical Data table Without Convenience Outlet and with a 6.5 kw heater, find unit electrical data. For the rooftop unit the data is MCA = 48.4 amps, MOCP = 50 amps, Min Unit Disconnect Size FLA = 46, and LRA = 183. For this example follow the steps outlined in the Application Data section (pages 28 and 29) for single power supply for all rooftop units except size 014 (230-v) and 62AQ on 460-v power supply. For other size and voltage conditions follow corresponding steps also outlined in the Application data section. 8

From the Single Power Supply table (Electrical Data page 22 this book) find 230 v, for 62AQ060300, X = 8.1 amps and Y = 9.3 amps. Add X amps to the MCA and MOCP and add Y amps to the minimum disconnect size. MCA MOCP FLA LRA 50HJQ 48.4 50 46 183 62AQ 8.1 8.1 9.3 31.7 Total 56.5 58.1 55.3 214.7 (MOCP calculation is 58.1 round down to 50. 50 is now less than the MCA therefore round up to 60. 60 is the new MOCP.) The wiring to the unit must be suitable for the MCA calculated above. The overcurrent protective device for the combination load is equal to 60, thus a single disconnect may be used for BOTH the MAIN UNIT and the 62AQ provided that the wire supplying the 62AQ is sized for a minimum of 33% of the maximum overcurrent protection device value (i.e., 60 x.33 = 20 Amps). No further subfusing is required. In this example a 60-amp disconnect would be used for the combined load of the 50HJQ006 with a 6.5 kw heater and the 62AQ060 Energy$Recycler unit. 9

Performance data TEMP (F) AIR ENTERING EVAPORATOR 70 75 LEGEND CMP Compressor Power (kw) COND Condenser EDB Entering Dry Bulb EVAP Evaporator LDB Leaving Dry Bulb THC Total Heat Capacity (1000 Btuh) Gross 62AQ060 HEATING SUPPLY AIR ENTERING COND 300 CFM EXHAUST AIR 450 CFM EXHAUST AIR 600 CFM EXHAUST AIR EDB CFM THC CMP LDB THC CMP LDB THC CMP LDB 300 13.9 0.469 37.6 0 450 14.0 0.409 25.3 15.2 0.426 27.5 600 14.1 0.382 19.0 15.3 0.397 20.7 16.0 0.406 21.7 300 13.6 0.522 47.7 10 450 13.9 0.456 35.5 15.0 0.473 37.7 600 14.0 0.424 29.3 15.2 0.440 31.0 15.9 0.449 32.0 300 13.3 0.621 63.0 25 450 13.5 0.537 50.7 14.6 0.557 52.8 600 13.6 0.498 44.4 14.7 0.515 46.0 15.4 0.525 47.0 300 13.1 0.679 71.1 33 450 13.3 0.587 58.7 14.4 0.608 60.8 600 13.4 0.544 52.4 14.5 0.562 54.0 15.2 0.572 55.0 300 12.8 0.794 85.1 47 450 13.0 0.689 72.8 13.9 0.709 74.7 600 13.1 0.638 66.5 14.1 0.656 68.0 14.6 0.663 68.8 300 12.3 1.020 108.0 70 450 12.5 0.891 95.9 13.2 0.908 97.4 600 12.5 0.826 89.5 13.4 0.845 90.9 13.9 0.852 91.6 300 14.5 0.482 39.4 0 450 14.7 0.418 26.5 15.9 0.437 28.8 600 14.7 0.390 19.9 16.0 0.406 21.7 16.8 0.416 22.8 300 14.3 0.436 49.4 10 450 14.5 0.465 36.7 15.7 0.485 39.0 600 14.6 0.433 30.2 15.9 0.450 32.0 15.7 0.460 33.0 300 13.9 0.633 64.6 25 450 14.1 0.548 51.9 15.3 0.569 54.1 600 14.3 0.507 45.3 15.5 0.525 47.0 16.2 0.536 48.0 300 13.7 0.693 72.7 33 450 13.9 0.600 59.9 15.0 0.621 62.1 600 14.1 0.554 53.4 15.2 0.572 55.0 15.9 0.584 56.0 300 13.4 0.815 86.9 47 450 13.6 0.701 74.0 14.6 0.723 75.9 600 13.7 0.648 67.4 14.8 0.667 69.0 15.3 0.675 69.8 300 12.9 1.050 110.0 70 450 13.0 0.905 97.0 13.8 0.924 98.6 600 13.1 0.839 90.4 14.0 0.858 91.8 14.5 0.866 92.6 10

TEMP (F) AIR ENTERING EVAPORATOR 70 75 LEGEND CMP Compressor Power (kw) COND Condenser EDB Entering Dry Bulb EVAP Evaporator LDB Leaving Dry Bulb THC Total Heat Capacity (1000 Btuh) Gross 62AQ100 HEATING SUPPLY AIR ENTERING COND 600 CFM EXHAUST AIR 800 CFM EXHAUST AIR 1000 CFM EXHAUST AIR EDB CFM THC CMP LDB THC CMP LDB THC CMP LDB 600 21.9 0.671 29.4 0 800 22.1 0.613 22.2 23.2 0.633 23.3 1000 22.2 0.580 17.8 23.3 0.597 18.8 24.1 0.608 19.4 600 21.8 0.763 39.8 10 800 21.9 0.693 32.5 23.0 0.712 33.6 1000 22.0 0.653 28.0 23.1 0.670 28.9 23.8 0.683 29.6 600 21.2 0.907 54.9 25 800 21.4 0.831 47.7 22.3 0.846 48.7 1000 21.5 0.782 43.2 22.6 0.801 44.1 23.3 0.816 44.7 600 20.8 0.994 62.9 33 800 21.1 0.911 55.7 22.1 0.935 56.8 1000 21.2 0.855 51.2 22.2 0.876 52.1 22.9 0.890 52.7 600 20.3 1.170 76.9 47 800 20.5 1.070 69.7 21.4 1.100 70.7 1000 20.5 1.000 65.2 21.5 1.020 66.0 22.1 1.040 66.6 600 19.4 1.500 99.9 70 800 19.6 1.380 92.7 20.4 1.410 93.5 1000 19.7 1.310 88.2 20.5 1.330 89.0 21.0 1.330 89.4 600 23.0 0.693 30.8 0 800 23.1 0.630 23.2 24.3 0.651 24.4 1000 23.2 0.596 18.7 24.4 0.613 19.6 25.2 0.626 20.3 600 22.7 0.780 41.0 10 800 22.9 0.711 33.5 24.0 0.733 34.7 1000 23.0 0.670 28.9 24.2 0.688 29.8 24.9 0.701 30.5 600 22.1 0.932 56.2 25 800 22.3 0.846 48.6 23.4 0.869 49.8 1000 22.6 0.801 44.1 23.7 0.823 45.0 24.4 0.837 45.7 600 21.8 1.020 64.3 33 800 22.0 0.924 56.6 23.0 0.949 57.7 1000 22.2 0.876 52.1 23.2 0.898 53.0 23.9 0.913 53.6 600 21.2 1.19 78.2 47 800 21.4 1.09 70.7 22.4 1.120 71.8 1000 21.5 1.02 66.1 22.5 1.050 66.9 23.2 1.060 57.5 600 20.2 1.53 101.0 70 800 20.5 1.41 93.7 21.3 1.440 94.6 1000 20.5 1.32 89.0 21.3 1.350 89.7 22.0 1.370 90.3 11

12 62AQ060 COOLING RATINGS SUPPLY AIR ENTERING EVAPORATOR CFM/BF EXHAUST 300/0.25 450/0.26 600/0.29 AIR ENTERING CONDENSER Supply Air EDB (F)/EWB (F) CFM F 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 TC 9.47 10.2 12.7 11.4 11.5 12.2 12.5 12.8 10.0 10.8 13.9 12.1 12.1 12.7 12.9 13.1 10.4 11.2 14.4 12.4 12.4 12.8 13.2 13.3 SHC 4.52 6.46 12.7 2.93 7.85 3.03 4.79 4.14 5.08 7.82 13.9 3.01 9.88 3.18 5.57 4.71 5.57 9.06 14.4 3.08 11.6 3.32 6.27 5.17 75 CMP 1.10 1.14 1.29 1.19 1.20 1.24 1.26 1.27 1.13 1.17 1.34 1.23 1.25 1.27 1.28 1.29 1.15 1.19 1.37 1.25 1.27 1.28 1.31 1.32 LDB 53.0 59.5 81.3 65.8 69.4 70.4 73.6 75.7 56.5 63.5 93.0 68.7 73.5 73.3 77.0 78.9 58.4 65.6 100.0 70.2 76.0 74.7 78.9 80.7 300 LWB 50.7 55.7 57.8 63.3 64.0 67.5 69.5 71.8 54.3 59.3 62.0 66.8 67.5 71.0 73.1 75.3 56.1 61.1 64.5 68.6 69.3 72.8 74.8 77.0 TC 9.26 10.0 12.5 11.2 11.2 11.9 12.2 12.4 9.80 10.6 13.6 11.8 11.8 12.3 12.5 12.7 10.1 10.9 12.1 12.1 12.4 12.8 13.0 SHC 4.44 6.38 12.5 2.86 7.78 2.96 4.72 4.06 4.99 7.73 13.6 2.93 9.80 3.11 5.48 4.62 5.48 8.97 3.01 11.5 3.25 6.17 5.03 80 CMP 1.16 1.20 1.35 1.26 1.27 1.31 1.32 1.34 1.19 1.23 1.41 1.30 1.31 1.33 1.34 1.35 1.21 1.26 1.32 1.33 1.34 1.37 1.38 LDB 53.3 59.8 82.1 66.0 69.6 70.6 73.8 76.9 59.7 63.6 93.7 68.9 73.7 73.4 77.2 79.1 58.5 65.8 70.3 76.3 74.9 79.1 80.9 LWB 51.0 55.9 58.1 63.6 64.3 67.8 69.8 72.1 54.5 59.5 62.3 67.0 67.7 71.2 73.3 75.5 56.3 61.3 68.7 69.5 73.0 74.9 77.1 TC 10.6 11.4 14.9 12.9 13.0 13.8 14.0 14.2 10.9 11.8 15.5 13.4 13.4 14.0 14.2 14.3 SHC 5.27 8.01 14.9 3.23 10.1 3.42 5.86 4.97 5.78 9.29 15.5 3.31 12.0 3.57 6.56 5.47 75 CMP 0.974 1.00 1.13 1.05 1.06 1.09 1.09 1.10 0.988 1.02 1.17 1.07 1.08 1.09 1.10 1.11 LDB 56.1 63.0 90.8 68.2 73.0 72.8 76.4 78.3 58.0 65.3 98.3 69.8 75.5 74.3 78.4 80.2 450 LWB 53.9 58.8 61.3 66.2 66.9 70.3 72.4 74.7 55.8 60.8 63.8 68.1 68.8 72.3 74.3 76.6 TC 10.3 11.1 14.6 12.7 12.7 13.5 13.6 13.8 10.7 11.6 15.2 13.0 13.1 13.6 13.8 14.0 SHC 5.18 7.92 14.6 3.16 10.1 3.34 5.77 4.89 5.69 9.20 15.2 3.24 11.9 3.49 6.47 5.37 80 CMP 1.03 1.05 1.19 1.11 1.12 1.14 1.15 1.16 1.04 1.07 1.21 1.13 1.14 1.15 1.16 1.16 LDB 56.3 63.2 91.6 68.4 73.1 72.9 76.6 78.5 58.2 65.4 98.9 69.9 75.6 74.5 78.6 80.3 LWB 54.1 59.0 61.5 66.4 67.1 70.6 72.6 74.9 55.9 60.9 64.0 68.2 69.0 72.5 74.5 76.7 TC 11.2 12.2 16.1 13.9 13.8 14.6 14.8 15.0 SHC 5.86 9.42 16.1 3.43 12.1 3.70 6.73 5.63 75 CMP 0.906 0.938 1.05 0.98 0.98 1.00 1.01 1.01 LDB 57.9 65.1 97.3 69.6 75.3 74.1 78.2 79.9 600 LWB 55.7 60.5 63.5 67.9 68.7 72.0 74.1 76.3 TC 10.9 11.9 15.7 13.6 13.5 14.3 14.5 14.6 SHC 5.77 9.33 15.7 3.36 12.0 3.62 6.63 5.54 80 CMP 0.955 0.988 1.10 1.03 1.03 1.05 1.06 1.06 LDB 58.0 65.2 97.9 69.7 75.4 74.3 78.3 8.01 LWB 55.8 60.7 63.7 68.0 68.8 72.2 74.2 76.4 Performance data (cont) LEGEND BF Bypass Factor CMP Compressor Power (kw) EDB Entering Dry Bulb EWB Entering Wet Bulb LDB Leaving Dry Bulb LWB Leaving Wet Bulb SHC Sensible Heat Capacity (1000 Btuh) Gross TC Capacity (1000 Btuh) Gross

LEGEND 62AQ100 COOLING RATINGS SUPPLY AIR ENTERING EVAPORATOR CFM/BF EXHAUST 600/0.3 800/0.32 1000/0.34 AIR ENTERING CONDENSER Supply Air EDB (F)/EWB (F) CFM F 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 67/62 80/67 125/72 75/74 95/75 80/78 89/80 89/82 TC 16.4 17.7 22.8 19.9 19.9 21.0 21.6 22.3 17.0 18.4 24.8 20.5 20.6 21.7 22.3 23.0 17.5 18.8 26.1 20.9 20.9 22.2 22.8 23.5 SHC 8.51 12.2 22.8 5.88 15.0 6.13 9.46 8.36 9.21 13.9 24.8 5.98 17.5 6.39 10.6 9.25 9.88 15.5 26.1 6.10 19.6 6.64 11.7 10.1 75 CMP 1.48 1.54 1.79 1.63 1.64 1.68 1.71 1.74 1.51 1.57 1.89 1.65 1.67 1.71 1.74 1.77 1.53 1.59 1.96 1.67 1.69 1.73 1.77 1.80 LDB 54.0 60.9 86.2 65.9 70.8 70.4 73.9 75.7 56.4 63.6 93.4 68.0 73.9 72.5 76.4 78.0 57.9 65.4 98.3 69.3 76.1 73.8 77.8 79.4 600 LWB 52.4 57.4 59.5 64.9 65.6 69.1 71.1 73.3 54.7 59.7 62.1 67.2 67.9 71.3 73.3 75.4 56.1 61.1 63.8 68.5 69.3 72.6 74.6 76.7 TC 16.0 17.3 22.4 19.3 19.4 20.6 21.1 21.7 16.6 17.9 24.3 20.0 20.1 21.2 21.8 22.4 17.1 18.3 25.6 20.4 20.5 21.6 22.3 22.9 SHC 8.35 12.1 22.4 5.69 14.9 5.99 9.32 8.23 9.05 13.7 24.3 5.83 17.3 6.25 10.5 9.11 9.71 15.3 25.6 5.96 19.3 6.50 11.6 9.96 80 CMP 1.57 1.63 1.89 1.70 1.72 1.76 1.80 1.83 1.59 1.66 1.99 1.74 1.76 1.80 1.83 1.86 1.61 1.68 2.06 1.76 1.78 1.82 1.86 1.89 LDB 54.2 61.1 86.8 66.2 71.0 70.6 74.2 75.9 56.6 63.8 94.0 68.2 74.1 72.7 76.5 78.1 58.1 65.6 98.9 69.4 76.3 73.9 77.9 79.5 LWB 52.7 57.6 59.7 65.2 65.9 69.4 71.3 73.5 54.9 59.9 62.3 67.3 68.1 71.5 73.4 75.6 56.2 61.2 63.9 68.6 69.4 72.8 74.7 76.8 TC 17.6 19.0 25.7 21.3 21.4 22.7 23.3 24.0 18.1 19.4 27.2 21.8 21.9 23.2 23.8 24.6 SHC 9.43 14.2 25.7 6.23 17.8 6.64 10.9 9.51 10.1 15.7 27.2 6.36 20.0 6.90 12.0 10.4 75 CMP 1.39 1.44 1.69 1.51 1.52 1.56 1.58 1.61 1.41 1.45 1.75 1.52 1.54 1.57 1.60 1.63 LDB 56.2 63.3 92.2 67.8 73.5 72.2 76.0 77.6 57.7 65.2 97.2 69.1 75.6 73.5 77.6 79.1 800 LWB 54.5 59.4 61.6 66.8 67.6 71.0 72.9 75.1 55.9 60.9 63.4 68.2 69.0 72.3 74.3 76.4 TC 17.2 18.5 25.3 20.8 21.0 22.2 22.8 23.5 17.6 18.9 26.7 21.3 21.4 22.6 23.3 24.0 SHC 9.27 14.0 25.3 6.08 17.6 6.50 10.7 9.38 9.93 15.6 26.7 6.22 19.8 6.76 11.8 10.2 80 CMP 1.47 1.51 1.78 1.59 1.61 1.64 1.67 1.69 1.48 1.53 1.84 1.60 1.62 1.65 1.69 1.71 LDB 56.3 63.6 92.8 67.9 73.7 72.4 76.2 77.8 57.9 65.4 97.7 69.2 75.8 73.7 77.7 79.2 LWB 54.6 59.6 61.8 67.0 67.7 71.2 73.1 75.2 56.0 61.0 63.5 68.4 69.2 72.5 74.4 76.5 TC 18.3 19.9 27.8 22.4 22.5 23.8 24.5 25.3 SHC 10.2 15.9 27.8 6.52 20.3 7.07 12.1 10.5 75 CMP 1.33 1.37 1.62 1.44 1.46 1.48 1.51 1.53 LDB 57.6 65.0 96.7 68.9 75.4 73.4 77.4 79.2 1000 LWB 55.8 60.7 63.2 68.1 68.8 72.2 74.1 78.9 TC 17.9 19.4 27.3 21.9 22.0 23.3 24.0 24.6 SHC 10.0 15.7 27.3 6.38 20.1 6.93 12.0 10.4 80 CMP 1.40 1.45 1.71 1.52 1.53 1.56 1.59 1.60 LDB 57.8 65.2 97.2 69.1 75.6 73.5 77.5 79.1 LWB 55.9 60.9 63.3 68.2 69.0 72.3 74.3 76.4 BF Bypass Factor CMP Compressor Power (kw) EDB Entering Dry Bulb EWB Entering Wet Bulb LDB Leaving Dry Bulb LWB Leaving Wet Bulb SHC Sensible Heat Capacity (1000 Btuh) Gross TC Capacity (1000 Btuh) Gross 13

Performance data (cont) 62AQ060 SUPPLY FAN PERFORMANCE CURVE 208 VOLTS 14

15 62AQ060 SUPPLY FAN PERFORMANCE CURVE 230 VOLTS

Performance data (cont) 62AQ060 EXHAUST FAN PERFORMANCE CURVE 208 VOLTS 16

17 62AQ060 EXHAUST FAN PERFORMANCE CURVE 230 VOLTS

Performance data (cont) 62AQ100 SUPPLY FAN PERFORMANCE CURVE 208 VOLTS 18

19 62AQ100 SUPPLY FAN PERFORMANCE CURVE 230 VOLTS

Performance data (cont) 62AQ100 EXHAUST FAN PERFORMANCE CURVE 208 VOLTS 20

21 62AQ100 EXHAUST FAN PERFORMANCE CURVE 230 VOLTS

Performance data (cont) UNIT 62AQ SOUND RATING (60 Hz) LEGEND Bels Sound Levels (1 bel = 10 decibels) A-WEIGHTED (db) SOUND POWER OCTAVE BANDs 63 125 250 500 1000 2000 4000 8000 060 7.2 Bels 71.0 42.9 59.9 55.0 62.8 65.6 64.0 62.6 58.0 100 8.2 Bels 81.4 51.7 63.8 66.0 70.4 76.3 75.0 74.6 71.9 Electrical data LEGEND Full Load Amps Heating, Air Conditioning and Refrigeration Locked Rotor Amps Minimum Circuit Amps Maximum Overcurrent Protection National Electrical Code Rated Load Amps SEPARATE POWER SUPPLY (Use for Separate Supply to Energy$Recyler) UNIT COND FAN EVAP FAN POWER SUPPLY FUSE VOLTAGE RANGE COMPRESSOR SIZE V-PH-Hz MOTOR MOTOR OR HACR BRKR 62AQ Min Max RLA LRA FLA FLA MCA MOCP* 060 208/230-1-60 187 253 7 29 1.1 9.9 15 060GA 208/230-1-60 187 253 7 29 1.1 1.1 11 15 100 208/230-1-60 187 253 19.5 38 2.3 15.4 25 100GA** 208/230-1-60 187 253 10.5 38 2.3 2.3 17.7 25 FLA HACR LRA MCA MOCP NEC RLA *Fuse or HACR circuit breaker per NEC. With accessory fan kit, part number CRFANKIT001A00. **With accessory fan kit, part number CRFANKIT002A00. NOTE: In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. SINGLE POWER SUPPLY FOR ENERGY$RECYCLER AND ROOFTOP UNITS UNIT 230-V INSTALLATION 460-V INSTALLATION X Y X Y 62AQ060301 8.1 9.3 4.1 4.7 62AQ060301GA 9.2 10.6 4.6 5.3 62AQ100301 12.8 14.7 6.4 7.4 62AQ100301GA 15.1 17.4 7.6 8.7 NOTES: 1. Maximum group overcurrent protection for 62AQ is 60 amps before subfusing is required. 2. See Selection Procedure, Step X page 8 and Application Data selection section (pages 28 and 29) for uses of X and Y. 22

Typical installation EXHAUST AIR CONDENSER-FAN DISCHARGE AIR FRESH AIR INLET OUTDOOR-AIR INLET ROOF CURB RETURN AIR BAFFLE MOUNTING KIT FILTER ACCESS SUPPLY AIR RETURN AIR OUTDOOR AIRFLOW INDOOR AIRFLOW 23

Typical wiring schematic 62AQ060,100 C CAP CER CH COC COH COMP CR CTD DB DFT DM FU FR GND HM HPS HR LPS LTLO OATC OATH OCR RVS TB TRAN LEGEND Contactor Capacitor Compressor Relay Crankcase Heater Cool Changeover Relay Heat Changeover Relay Compressor Motor Cooling Relay Compressor Time Delay Defrost Board Defrost Thermostat Damper Motor Fuse Fan Relay Ground Humidity Relay High-Pressure Switch Heating Relay Low-Pressure Switch Low Temp Cooling Lockout Outdoor-Air Thermostat (Cool) Outdoor-Air Thermostat (Heat) Occupied Relay Reversing Valve Solenoid Terminal Block Transformer Field Splice Terminal (Marked) Terminal (Unmarked) Splice Splice (Marked) Factory Wiring Field Control Wiring Field Power Wiring Accessory or Optional Wiring To indicate common potential only. Not to represent wiring. NOTES 1. If any of the original wire furnished must be replaced, it must be replaced with 90 C wire or its equivalent. 2. Use copper conductors only. 3. TRAN is wired for 230-v unit. If unit is to be run with 208-v power supply, disconnect black wire from 230-v terminal and connect to 208-v terminal. 24

Controls Operating sequence The Energy$Recycler control is a 7-day programmable, wall mounted, low voltage control. It combines temperature and humidity control in a single unit and provides separate set points for heating and cooling. The control adds a dehumidification control function with separate set points for up to 2 occupied and unoccupied periods per day. Different heating and cooling set points and times are programmable for up to 4 periods per day 7 days per week. In case of a power loss an internal memory stores programs and settings for unlimited time, and the clock continues to run for at least 8 hours. Batteries are not used. The Energy$Recycler control provides direct control of the 62AQ, rooftop unit fans, and rooftop unit compressor in response to the programmed time schedules and temperature settings. The dehumification output signal controls the Energy$Recycler compressor to cool and dehumidify the supply air. A relay in the Energy$Recycler unit energizes the MoistureMiser solenoid in the rooftop unit if it is equipped with the optional MoistureMiser dehumidification package. During occupied periods the 62AQ Energy$Recycler and the rooftop unit s fans run continuously to maintain proper airflow and ventilation rates. The compressors in the Energy$Recycler and the rooftop unit cycle in response to the dehumidification and thermostat output signals from the control to maintain proper temperature and humidity levels. During unoccupied periods the system fans and compression will cycle in response to the Energy$Recycler control s temperature and humidity output signals to maintain space conditions at programmed set points. During mild weather, if the outdoor temperature is below the outside air thermostat (OAT) set point, all compression is locked off and the system operates in the economizer mode to provide free cooling. See the Energy$Recycler Control Operating Sequence and System Response table for more information. ENERGY$RECYCLER CONTROL 25

Controls (cont) ENERGY$RECYCLER CONTROL OPERATING SEQUENCE AND SYSTEM RESPONSE OCCUPIED COOLING ER Comp ER Fans RT Comp 1 RT Comp 2 RT Fan RT Heat Indoor Temperature Above 2nd Stage Set Point Humidity Low & OAT Low On On On w/o MM On w/o MM On Off Humidity Low & OAT High On On On w/o MM On w/o MM On Off Humidity High & OAT Low On On On w MM On w MM On Off Humidity High & OAT High On On On w MM On w MM On Off Indoor Temperature Between 1st and 2nd Stage Set Points Humidity Low & OAT Low Off On Off Off On Off Humidity Low & OAT High On On On w/o MM Off On Off Humidity High & OAT Low On On On w MM Off On Off Humidity High & OAT High On On On w MM Off On Off Indoor Temperature Below 1st Stage Set Point Humidity Low Off On Off Off On Off Humidity High On On Off Off On Off NOTE: OAT < 55 all compression off HEATING ER Comp ER Fans RT Comps RT Fans RT Heat Indoor Temperature Above 1st Stage Set Point Off On Off On Off Indoor Temperature Between 1st and 2nd Stage Set Points OAT >Set Pt On On Off On Off OAT <Set Pt On On Off On On, 50% Indoor Temperature Below 2nd Stage Set Point OAT >Set Pt On On Off On On, 50% OAT <Set Pt On On Off On On, 100% UNOCCUPIED COOLING ER Comp ER Fans RT Comp 1 RT Comp 2 RT Fans RT Heat Indoor Temperature Above 2nd Stage Set Point Humidity Low & OAT Low On On (cyc.) On w/o MM Off On (cyc.) Off Humidity Low & OAT High Off Off On w/o MM w/o MM On (cyc.) Off Humidity High & OAT Low Off Off On w MM On w MM On (cyc.) Off Humidity High & OAT High Off Off On w MM On w MM On (cyc.) Off Indoor Temperature Between 1st and 2nd Stage Set Points Humidity Low & OAT Low Off On (cyc.) Off Off On (cyc.) Off Humidity Low & OAT High Off Off On w/o MM Off On (cyc.) Off Humidity High & OAT Low Off Off On w MM Off On (cyc.) Off Humidity High & OAT High Off Off On w MM Off On (cyc.) Off Indoor Temperature Below 1st Stage Set Point Off Off Off Off Off Off NOTE: OAT < 55 all compression off* HEATING ER Comp. ER Fans RT Comps. RT Fans RT Heat Indoor Temperature Above 1st Set Point Off Off Off Off Off Indoor Temperature Between 1st and 2nd Stage Set Points Off Off Off On (cyc.) On, 50% Indoor Temperature Below 2nd Stage Set Point Off Off Off On (cyc.) On, 100% Comp ER MM OAT RT Set Pt LEGEND Compressor Energy$Recycler MoistureMiser Outdoor-Air Temperature Rooftop Unit Set Point *The 62AQ unit is shipped with an outdoor thermostat set at 55 F which locks out mechanical cooling on the RTU and the 62AQ compressor. If this feature is not desirable, the rooftop unit s compressor can be allowed to run by relocating both gray wires to the same side of the Low Temperature Lockout Thermostat (LTLO) leaving the white wire on the opposite pole, locking out only the 62AQ compressor. The LTLO is also accessible by removing the filter access panel and the door of the damper mounting bracket. 26

Dehumidification equipment and connections The dehumidification output terminal on the Energy$Recycler control must be connected to the dehumidify input terminal on the Energy$Recycler. Additionally, if the rooftop (RTU) is equipped with optional MoistureMiser Dehumidification accessory, a relay in the Energy$Recycler control box (HM) energizes the MoistureMiser solenoid to activate the enhanced dehumidification mode. TYPICAL ENERGY$RECYCLER CONTROL WIRING ENERGY RECYCLER CONTROL 62AQ FOR MOISTUREMISER UNITS ONLY Five-minute compressor time delay This function prevents compressor from starting unless it has been off for at least 5 minutes. Fifteen-minute staging timer In multistage heating or cooling, this timer prevents any higher stage from turning on until preceding stage has been on for 15 minutes. This timer is not in effect if temperature difference is greater than 5º F (usually due to a large change in desired temperature). Three-minute minimum on time In normal operation, when a stage turns on, it will not turn off for a minimum of 3 minutes. Heat/cool set points (desired temperature) A minimum difference of 2º F is enforced between heating and cooling desired temperatures. This is done by allowing one setting to push the other to maintain this difference. This difference is adjustable via Configuration Option 14. Equipment on indicators When cooling equipment is on, a COOL icon preceded by a small triangle is displayed below cooling set point. While cooling equipment is delayed by the compressor time delay, triangle will flash. The same is true for HEAT icon and its preceding triangle located under heating set point. Dehumidify output on indicators The DEHUM icon is on when the dehumidification output is energized. Auto changeover When auto changeover mode is selected, a change from heat to cool (or vice versa) will not occur until an opposite mode demand has existed for 10 minutes. If set point is changed, the 10-minute requirement is deleted. Power on check When AC power is first applied, all segments of display are turned on for a few seconds. Following this, temperature display indicates model/configuration via following 2-digit code: CP for commercial product. Error codes If Energy$Recycler control cannot properly read room temperature, display will indicate two dashes (--) and all outputs (except fan, if on) will turn off. E4 If Energy$Recycler control s internal memory fails, E4 will be displayed. Replace Energy$Recycler control. E5 If Energy$Recycler control cannot properly read humidity, E5 will be displayed. Replace Energy$Recycler control. Smart recovery With Smart Recovery selected (DIPSW1 is on), transition out of setback begins a fixed time period before selected recovery time and gradually adjusts room temperature so desired temperature will be achieved at selected recovery time. The fixed time period is 1.5 hours. It operates in both heating and cooling. Mode OFF HEAT COOL AUTO Fan ON** AUTO ENERGY$RECYCLER CONTROL LCD POWER ON CHECK HOLD HOLIDAY DEHUM CLEAN FILTER COOL HEAT OC1 UN1 OC2 UN2 Mo Tu We Th Fr Sa Su TIME AM PM PROGRAMMING 27

Application data Unit mounting Accessory Energy$Recycler unit designed to mount directly to 3 to 12.5 ton rooftop units using accessory mounting kit. No roof curb or additional support required. Ductwork None required. Unit attaches directly to return air opening of rooftop unit using hardware provided in accessory mounting kit package. Unit can be slab or curb mounted and connected to competitive units using field-supplied mounting arrangement and ductwork. (Power and control wiring modifications required.) Airflow Unit supply and exhaust air fans are multispeed, direct drive centrifugal squirrel cage type with rubber vibration isolation mounts. Models with or without supply air fan available to meet ventilation airflow requirements. Both fans are draw through type. Adjustable supply and exhaust air dampers provided for precise airflow adjustment. Maximum airflow Maximum airflow, 060 size 600 cfm, 100 size 1,000 cfm. Minimum airflow Minimum airflow, 060 size 300 cfm, 100 size 600 cfm. Condensate drain Condensate from rooftop unit drains into lower condensate pan of Energy$Recycler using drain fittings supplied in installation kit (supplied with the 62AQ unit). Minimum ambient operating temperatures Cooling 55 F Heating 20 F Maximum ambient operating temperatures Cooling 125 F Heating 70 F Controls A 7-day programmable control thermostat with a built in humidistat is included with each unit. Control provides occupied/unoccupied signal to control supply and exhaust air fans and a humidity signal to control compressor in Energy$Recycler unit. Relays in Energy$Recycler unit provide control signals to the rooftop unit to control compressor operation and the dehumidification solenoid if the rooftop unit is equipped with the MoistureMiser option. IMPORTANT: When using Energy$Recycler with 3 to 12.5 ton rooftop units note the following: Energy$Recycler operates in economizer mode when outside air enthalpy suitable for free cooling. Do Not Specify field or factory installed (FIOP) economizer options when Energy$Recycler is used. Energy$Recycler attaches to the horizontal supply/ return air end of rooftop unit. Do Not Specify Factory- Installed Option (FIOP) codes G or Y that include hinged access panels when Energy$Recycler is used. Selecting the 62AQ on a common power supply for all RTU sizes (except 014 230-v and 62AQ on a 460-v power supply): 1. Determine the combination load rating for minimum circuit amps (MCA) and maximum overcurrent protective device (MOCP): a. Add X amps (found in the 62AQ nameplate and in the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section) to the values of MCA and MOCP for the RTU. b. If the calculated new MOCP is nonstandard, select the next lowest size for the combined MOCP rating. If the combined MOCP rating is less than the MCA, select the next higher size for the MOCP. 2. Determine a disconnect for the 62AQ unit: a. If the new MOCP is less than or equal to 60, a common non-fused disconnect for the 62AQ and RTU may be used provided that: The wire size to the 62AQ is at least 20 amps. The disconnect size is at least equal to the disconnect size marked on the RTU plus, Y marked on the 62AQ nameplate and the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section. b. If the MOCP is greater than 60 amps, provide FUSED DISCONNECT for the 62AQ sized per the 62AQ unit nameplate and the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section. 3. Determine a disconnect for the RTU. a. If the new MOCP is less than or equal to 60, a common non-fused disconnect sized per Step 2 above may be used for the 62AQ and the RTU. b. If the new MOCP is greater than 60, and the old MOCP was less than or equal to 60, a FUSED DISCONNECT no greater than 60 amps must be provided for the RTU. c. If the old overcurrent protection device is greater than 60, a non-fused disconnect sized per nameplate marking may be used for the RTU. Selecting the 62AQ on a commmon power supply for all RTU 014 230-v sizes: 1. Determine the combination load rating for minimum circuit amps (MCA) and maximum overcurrent protective device (MOCP): a. Add X amps (found in the 62AQ nameplate and in the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section) to the values of MCA and MOCP for the RTU. b. If the calculated new MOCP is nonstandard, select the next lowest size for the combined MOCP rating. If the combined MOCP rating is less than the MCA, select the next higher size for the MOCP. 28

2. Select a FUSED DISCONNECT for the 62AQ unit sized per the 62AQ nameplate and in the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section. 3. Determine a disconnect for the RTU. a. If installing on units without electric heat, a FUSED DISCONNECT sized per nameplate is required for the RTU. b. If installing on units with electric heat, a non-fused disconnect sized per nameplate marking may be used for the RTU. Selecting the 62AQ sizes 060 and 100 (230-v) on a common power supply with all 460-v units: 1. Determine the combination load rating for minimum circuit amps (MCA) and maximum overcurrent protective device (MOCP): a. Add X amps (found in the 62AQ nameplate and in the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section) to the values of MCA and MOCP for the RTU. b. If the calculated new MOCP is nonstandard, select the next lowest size for the combined MOCP rating. If the combined MOCP rating is less than the MCA, select the next higher size for the MOCP. 2. Determine a disconnect for the 62AQ unit: a. If the new MOCP is less than or equal to 30, a common non-fused disconnect for the 62AQ and RTU may be used provided that: The wire wize to the 62AQ is at least 10 amps. The disconnect size is at least equal to the disconnect size marked on the RTU plus, Y marked on the 62AQ nameplate and the Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section. b. If the MOCP is greater than 30 amps, provide FUSED DISCONNECT for the 62AQ unit sized per the 62AQ nameplate and Single Power Supply for Energy$Recycler and Rooftop Units table of the Electrical Data section. 3. Provide a 460 to 230 stepdown transformer (part number HT01AH853) downstream of the 62AQ unit disconnect. 4. Determine a disconnect for the RTU: a. If the new MOCP is less than or equal to 30, a common non-fused disconnect sized per Step 2 above may be used for the 62AQ and the RTU. b. If the new MOCP is less than or equal to 6, a nonfused disconnect sized per nameplate marking may be used for this unit. c. If the new overcurrent protection device is greater than 60, and the old overcurrent protection device was less than 60, a FUSED DISCONNECT no greater than 60 amps must be provided for this unit. d. If the old overcurrent protection device is greater than 60, a non-fused disconnect sized per nameplate marking may be used for this unit. 29

Guide specifications Energy$Recycler HVAC Guide Specifications Size Ranges: 600 to 1,000 Cfm Carrier Model Number: 62AQ Part 1 General 1.01 SYSTEM DESCRIPTION Outdoor rooftop, or slab-mounted, electrically controlled, air-to-air heat pump unit utilizing a rotary compressor for cooling and heating duty. 1.02 QUALITY ASSURANCE A. Unit shall be designed to conform to ASHRAE 15 and in accordance with UL 1812/1995. B. Unit shall be UL listed. Unit shall be certified under Canadian standards as a total package for safety requirements. C. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation. D. Unit casing shall be capable of withstanding Federal Test Method Standard No. 141 (Method 6061) 500-hour salt spray test. 1.03 DELIVERY, STORAGE, AND HANDLING Unit(s) shall be stored and handled per manufacturer s recommendations. Part 2 Products 2.01 EQUIPMENT (STANDARD) A. General: Factory-assembled, single-piece heating and cooling accessory for use with 3 to 12.5 ton rooftop units. Contained within the unit enclosure shall be all factory wiring, piping, controls, refrigerant charge (R-22). B. Unit Cabinet: 1. Unit cabinet shall be constructed of galvanized steel, bonderized and coated with a baked enamel finish on all externally exposed surfaces, with primer coated internal panels. 2. Cabinet interior shall be insulated with a minimum 1 / 2-in. thick, flexible fiberglass insulation coated on the air side. 3. Cabinet panels shall be easily removable for servicing. 4. Holes shall be provided in the base rails for rigging shackles to facilitate overhead rigging. Forklift slots shall be provided to facilitate maneuvering. 5. Units shall be factory equipped with a condensate drain pan made of a non-corrosive material, providing a minimum 3 /4-in. connection. The condensate drain must be installed per manufacturer s installation instructions. Condensate pan has a sloped design to conform to ASHRAE Standard 62. 6. Filters (2 in.) will be accessible through a removable door and will require no screw removal (tool-less). 7. One-piece top cover is standard to help prevent water and air leaks. C. Supply and Exhaust Air Fans: 1. Fans shall be of the double-inlet forward-curved centrifugal type. 2. Fan wheels shall be made from steel with a corrosion resistant finish and shall be statically and dynamically balanced. 3. Bearings shall be sealed and permanently lubricated for longer life and lower maintenance. D. Compressor: 1. Fully hermetic rotary type with electrical overload protection. 2. Factory rubber shock mounted vibration isolation. E. Coils: 1. Supply and exhaust air coils shall have aluminum plate fins mechanically bonded to internally enhanced seamless copper tubes with all joints brazed. 2. Tube sheet openings shall be belled to prevent tube wear. 3. Variable circulating of refrigerant for optimum heat transfer utilizing ball-type check valves. F. Refrigerant Components: Refrigerant circuit components shall include: 1. Fixed Orifice Metering Device combined with Maximum Overcurrent Protection (MOP) type thermostatic expansion valve (TXV) to prevent compressor overloading. 2. Service gage connections on suction and discharge lines to charge and evacuate the system. 3. Ability to route gage hoses through unit side panel to eliminate air bypass during diagnostic periods. 4. Reversing valve. 5. Accumulator located in compressor suction line. G. Filter Section: 1. Standard filter section shall consist of factoryinstalled low-velocity, throwaway 2-in. thick fiberglass filters of commercially available sizes. 2. Filter face velocity shall not exceed 300 fpm at nominal airflows. H. Controls and Safeties: 1. Unit Controls: Unit shall be complete with self-contained lowvoltage control circuit. 2. Standard Safeties: a. High-pressure switch. 30