Product Data. 42D Ducted Fan Coil Air Conditioners cfm

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1 Product Data 42D Ducted Fan Coil Air Conditioners cfm Carrier s 42D series ducted fan coil units offer design and equipment location flexibility Choice of 5 models, each available in 8 sizes For 2-pipe, 4-pipe and electric heat systems with optional factoryfurnished controls Optional DX coils with expansion valve and distributor Up to 0.6 in. wg duct static with some models Features/Benefits The 42D series ducted fan coil unit delivers quiet, dependable air conditioning in a wide range of capacities. Units providing air flow of 600 to 2000 cfm are designed to economically fill multiroom application requirements in apartments, motels, and office buildings. These easy-to-install units are available in horizontal or vertical models for cabinet or furred-in applications. Casings and frame are fabricated from tough, heavy gage galvanized steel. Models 42DA, DC, DD and DE feature a galvanized finish as standard. The 42DF cabinet has a recoatable baked finished. A wide variety of factory-installed options (including coils, motors, filters, drain pans and electric strip heaters) can custom-tailor your units to the exact conditions of your applications. Low-cost installation Each unit is designed to occupy a minimum space. This feature, along with convenient wiring and piping connections, means the 42D reduces costs on renovations or new construction sites. Grommeted mounting holes or slots on top of the unit speed hanging. Copyright 1990 Carrier Corporation Form 42D-1PD

2 Quiet, dependable performance All 42D series units are built to operate unobtrusively, with quiet motors and a low fan speed. Glass fiber material, 1 2-in. thick, absorbs operating sound in the fully insulated casings. Efficient operation Three-speed centrifugal fans are direct drive and forward curved for efficiency. igh efficiency heat transfer surface and individual unit shutoff when unit is not Table of contents in use are other energy-saving standard features. 42D quality reduces service and maintenance expenses Condensate drain pan is heavy gage galvanized steel with closed-cell, fire retardant foam insulation. Water never touches the pan, so corrosion is minimized and long, trouble-free life is assured. A drip lip (removable drain pan extension) is provided for field installation on ceiling models 42DA, Page Features/Benefits Model Number Nomenclature...2 Options (Factory Installed)...4 Accessories (Field Installed)...5 Physical Data and Dimensions Selection Procedure ARI Certification...13 Performance Data Application Data...32 Electrical Data UL Listing...32 Guide Specifications...35,36 Model number nomenclature DC, DE and DF when a motorized valve package is ordered. The drip lip is also available as an accessory for use with other controls. Motor/blower assembly can be easily removed from the unit for ease of service. Removing this assembly provides clear access to the entering air face of the coil, making coil cleaning a relatively simple matter. Removeable panels make access to components and connections easy. 2

3 The 42D series 42DA Furred-in ceiling model for installation in the ceiling or over the closet. 42DD Vertical model with galvanized casing. Commonly for closet installation. 42DE Ceiling model with galvanized casing. 42DC Furred-in ceiling model with factory-installed insulated plenum. 42DF Exposed-ceiling cabinet model with integral double-deflection discharge grille and a bar-type return-air grille. 3

4 Options (factory-installed) Coils Choice of 2-pipe system with 4- or 6-row cooling and heating coils, or 4-pipe system with 4- or 6-row cooling coils and one- or 2-row heating coils. Six-in. diameter outside air opening with duct collar and filter to duct outside ventilation air conveniently to unit, with or without manual outdoor air damper. (Available on model 42DC, DE, and DF.) Filters Cleanable one-in. thick glass fiber filter available for 42DC, DD, and DE. (Throwaway filter is standard on these units.) Control packages For control options and accessories, refer to 42 Series Application Data book, Control Selection Guide for Fan Coil Air Conditioners. Automatic air vents Fiber washers allow air in piping to pass through, automatically bleeding the system and eliminating the need to manually vent air. When wet, washers swell and seal the bleed. Tell-tale drain pan includes a second drain connection located above the main drain connection to act as an indicator that the main drain is plugged. Single-source power connection provides factoryinstalled junction box to allow use of single power source for motor and heater when they are of the same voltage. Electric heaters Coils of high grade resistance wire, insulated by ceramic insulators in plated steel brackets. eater sizes available are shown in the following table. EATER VOLTAGE , 220, 240, 277 KW CAPACITY UNIT SIZE (Btuh) ,830 * * * ,245 * * * 2.0 6,830 * * * ,245 * * * ,660 * * * * * * * * ,075 * * * * * * * ,490 * * * * * * * ,905 * * * * * * ,320 * * * * * ,735 * * * * * ,150 * * * * ,980 * * * ,810 * NOTE: All heaters are single-stage and single-phase. 4

5 Accessories (field-installed) Removable drain pan extension (drip lip) gives positive control of condensate from valves and controls on 42DA, DC, and DF. (Provided as standard on these units when factory-supplied motorized valve package is ordered.) Supply Grilles Double deflection, aluminum finish supply grille. Filters Throwaway filter for 42DF. Cleanable filter for 42DC, DD and DE. (Extra throwaway filters for 42DC, DD and DE are also available.) SUPPLY GRILLE SIZES Recommended Grille Sizes (in.) Unit Size Cfm Model 42 DA, DC DE DD x14 15x14 15x x14 20x14 20x x x x x x x x x x x x x x x x x x x 15 NOTE: Refer to Physical Data pages for actual unit supply opening dimensions. Field-furnished duct transitions may be required. Return Air Grilles inged, bar-type, aluminum finish return grille with throwaway filter. Unit Size Cfm RETURN AIR GRILLE SIZES Recommended Grille Sizes (in.) Model 42 DA, DC DE DD x14 15x14 20x x14 20x14 25x x x x x x x x x x x x x x x x x x x 13 NOTES: 1. Refer to Physical Data pages for actual return opening dimensions. Field-furnished duct transitions may be required. 2. For return air grille filter sizes, contact Carrier. 5

6 Physical data and dimensions 42DA FURRED-IN CEILING MODEL UNIT NOM DIMENSIONS (in. 1 ) RETURN SUPPLY MIN RETURN SIPPING SIZE CFM CONN CONN AIR OPENING WT (lb) A B C D E (in. OD) (in. OD) (sq ft) APPROX LEGEND 1 Motor-Blower Assembly 2 Motor Junction Box 3 Auxiliary Drip Lip 4 Supply Duct Collar, 1 inch 5 Mounting oles (four, 3 4-in. diameter) have Rubber Grommets with 3 -in. holes. 6 Return Connection, (See Table) 7 Supply Connection, (See Table) 8 Drain Connection, 7 -in. OD 9 Air Vent, 1 -in. MPT NOTES: 1. R.. unit shown. L.. unit opposite. Coil connection locations are 5 inches. 2. Sizes 06, 08 and 10 have one motor, one blower. Sizes 12 through 20 have 2 motors, 2 blowers. 3. Standard 4-row coil shown. Other coil option dimensional data available on request. 4. Certified dimension drawings available on request. 5. Fan switch, wall plate not shown. 6. Galvanized finish provided as standard. 6

7 42DC FURRED-IN CEILING MODEL WIT PLENUM UNIT SIZE NOM CFM DIMENSIONS (in. 1 ) RETURN CONN (in. OD) SUPPLY CONN (in. OD) FILTER SIZE (in.) SIPPING WT (lb) APPROX A B C D E F x x x x x x x x NOTES: 1. R.. unit shown. L.. unit opposite. Coil connection locations are 5 inches. 2. Sizes 06, 08, and 10 have one motor, one blower. Sizes 12 through 20 have 2 motors, 2 blowers. 3. Filter and filter rack are standard. 4. Standard 4-row coil shown. Other coil option dimensional data available on request. 5. Certified dimension drawings available on request. 6. Fan switch, wall plate not shown. 7. Galvanized finish provided as standard. LEGEND 1 Mounting Clips (Shipped Loose) 2 Motor Junction Box Opposite Piping 3 Insulated Return Air Plenum 4 Mounting oles (four, 3 4-in. diameter) 5 Drain Connection, 7 -in. OD 6 Auxiliary Drip Lip 7 Supply Duct Collar, 1 inch 8 Return Connection, (See Table) 9 Supply Connection, (See Table) 10 Air Vent, 1 -in. MPT 11 Electrical Connection KO 12 Access Panel 13 Filter (Optional) 14 Return Duct Collar, inches 7

8 Physical data and dimensions (cont) 42DD VERTICAL MODEL WIT FULL CASING UNIT SIZE NOM CFM DIMENSIONS (in. 1 ) RETURN CONN (in. OD) SUPPLY CONN (in. OD) FILTER SIZE (in.) SIPPING WT (lb) APPROX A B C D E F G x x x x x x x x NOTES: 1. R.. unit shown, L.. unit opposite. Coil connection locations are 5 inches. 2. Standard 4-row coil shown. Other coil option dimensional data available on request. 3. Sizes 06, 08 and 10 have one motor, one blower. Sizes 12 through 20 have 2 motors, 2 blowers. 4. Supply and return connections terminate within unit when valves are factory installed. 5. Certified dimension drawings available on request. 6. Fan switch, wall plate not shown. 7. Galvanized finish provided as standard. 8. Units with internal factory valve packages have external connections located in triangular section above coil. 9. For bottom return (required for optional slide-in filter service from front) use dimension B minus 3 in. 10. Consult Carrier for ducted front return air and external filter rack with one-in. duct collar and throwaway filters. 11. Units with electric heat require additional access on the side of unit for servicing contactor box. LEGEND 1 Drain Connection, 7 -in. OD 2 Return Air Opening 3 Supply Duct Connection 4 Front Access Panel 5 Filter, Throwaway 6 Optional 6-in. Legs 7 Supply Connection, (See Table) 8 Return Connection, (See Table) 9 Air Vent, 1 -in. MPT 10 Motor Junction Box 8

9 42DE CEILING MODEL WIT FULL CASING UNIT SIZE NOM CFM DIMENSIONS (in. 1 ) COIL OUTLET (in. OD) COIL INLET (in. OD) FILTER SIZE (in.) SIPPING WT (lb) APPROX A B C D E F x x x x x x x x NOTES: 1. R.. unit shown, L.. unit opposite. 2. Coil stub-out location data available on request. 3. Unit fabricated of galvanized steel. 4. Internal parts fabricated of galvanized steel. 5. Sizes 06, 08 and 10 have one motor, one blower. Sizes 12 through 20 have 2 motors, 2 blowers. 6. Units must have drain line pitched and trapped externally. 7. Certified dimensions drawings available on request. 8. Fan switch, wall plate not shown. 9. Galvanized finished provided as standard. LEGEND 1 Insulation, 1 2-in. Thick Glass Fiber 2 Coil, 4-row 3 Unit Mounting Channel (2), 14-gage; 4 Mounting Slots, 1 2-in. x 2-in. 4 Side Access Panels 5 Manual Air Vent 6 Coil Outlet (See Table) Copper Sweat Connection 7 Supply Air Duct Connection, 1 inch 8 Coil Inlet, (see Table), Copper Sweat Connection 9 Return Air Duct Connection, inch 10 Filter, Throwaway 11 Filter Removal 12 Bottom Access Panel 13 Drain, 7 -in. OD 14 Drain Pan with Styrofoam Insulation 15 Motor Juction Box 16 Auxiliary Drip Lip 9

10 Physical data and dimensions (cont) 42DF EXPOSED CEILING CABINET MODEL WIT SUPPLY AND RETURN AIR GRILLES LEGEND 1 Coil, 4-row 2 Insulation, 1 2-in. Thick Glass Fiber 3 Junction Box 4 Filter, Throwaway 5 Unit Mounting Channel (2), 14-gage; 4 Mounting Slots, 1 2-in. x 2-in. 6 Side Access Panel (2) 7 Manual Air Vent 8 Coil Outlet, (See Table), Copper Sweat Connection 9 Supply Air Grille (Double Deflection) 10 Coil Inlet, (See Table), Copper Sweat Connection 11 Return Air Grille, inged, Bar Type, with Filter Frame (Anodized Aluminum Only) 12 Bottom Access Panel 13 Drain, 7 -in. OD 14 Drain Pan Insulated with Styrofoam 15 Auxiliary Drip Lip UNIT SIZE NOM CFM DIMENSIONS (in. 1 ) COIL OUTLET (in. OD) COIL INLET (in. OD) FILTER SIZE (Nom in.) SIPPING WT (lb) APPROX A B C D E F x x x x x x x x NOTES: 1. R.. unit shown, L.. unit opposite. 2. Coil stub-out connection data available on request. 3. Units fabricated of galvanized steel with champagne-beige recoatable baked finish. 4. Internal parts fabricated of galvanized steel. 5. Sizes 06, 08 and 10 have one motor, one blower. Sizes 12 through 20 have 2 motors, 2 blowers. 6. Units must have drain line pitched and trapped externally. 7. Stamped supply and return grilles are not available. 8. Bottom return air is not available. 9. Certified dimension drawings available on request. 10. Fan switch, wall plate not shown. 10

11 Selection procedure Example 1: Ceiling unit cooling I Determine job requirements. Given: Room Sensible Cooling Load MBtuh Room Total Cooling Load MBtuh Entering Air Temperature... 65Fwb, 78Fdb Entering Water Temperature... 45F Water Temperature Rise... 10degrees F External Static Pressure in. wg Unit Type Desired... Furred-in with plenum Air Delivery (cfm) cfm II Determine unit size. For an initial selection, choose a unit size that will provide the required cfm. Select a 42DC16 unit (nominal 1600 cfm) with a standard 4-row coil. III Determine the actual air delivery. Enter the Air Delivery table (page15) for the selection at the given external static pressure. At 0.30 in. wg, a 42DC size 16 with a 4-row coil delivers 1540 cfm. IV Determine water temperature rise. This step is used to determine the actual water temperature rise required to provide the specified cooling capacity. (This can be done to meet either specified sensible or specified total capacity. For this example, we will determine water temperature rise required to meet the specified total capacity after it has been corrected to the rating curve capacity. The resulting rating curve sensible capacity will be determined in Step V and then corrected to actual capacity. If the sensible capacity were the critical requirement, the reverse proceedure would be followed.) A. Enter the Cooling Capacity Correction Factors table (page 20). At unit size 16 and 1540 cfm, interpolate to find the T factor of and the S factor of B. Correct the specified total capacity to the required rating curve capacity. Rating curve capacity Specified Total Capacity = T Factor 40.0 MBtuh = = 41 MBtuh C. Enter the cooling curve for the 1600 cfm unit with the standard 4-row coil (page 26) at 41 MBtuh and project vertically to the specified entering wet bulb (65 F). Project from this point (point 1) to the right to the specified entering water temperature (45 F) and then vertically to read water temperature rise of 11 degrees F. Note that this is slightly higher than the 10 degrees F specified and will result in a lower gpm. If the temperature rise had been substantially less than 10 degrees F, a 6-row coil could have been selected to increase the rise and reduce the required gpm. V Determine the sensible capacity. A. Project horizontally to the left from point 1 (by interpolation) to the entering dry bulb line (78 F) and then down to read the rating curve capacity of 32 MBtuh. B. Correct the rating curve capacity to actual capacity: Actual Sensible Cooling = S x Rating Curve Sensible Cooling = (from Step IV A) x 32 MBtuh = 31.1 MBtuh VI Determine water flow and pressure drop. Actual Total Cooling A. Gpm =.5 x Temp Rise 40 =.5 x 11 (From Step IV C) = 7.27 B. Pressure drop is obtained from the curve on page 31 for the 4-row cooling coil and is 2.6 ft of water. VII Find Leaving Air Dry Bulb (ldb) and Wet Bulb (lwb) Temperatures. Actual Sensible MBtuh A. ldb = edb Actual Cfm x (Step V B) = x = 59.3 F B. Leaving wet bulb is computed by referring to the Enthalpy at saturation table (page 20). First, determine that the enthalpy at saturation for the entering ( h ent) wet bulb of 65 F is Btu per lb of dry air. Actual Total Capacity hlvg = hent x Actual Cfm = x 1540 = Again refering to the table, the temperature corresponding to 24.22, by interpolation, is 56.6 F, which is the leaving wet bulb. 11

12 Selection procedure (cont) Example 2: Ceiling unit heating, 2-pipe system I Determine job requirements. Given: Selected Cooling Unit... 42DC16, 4-row coil at 7.27 gpm Room eating Load MBtuh Entering Air Temperature... 55F Entering Water Temperature F II Determine heating capacity at cooling gpm. Enter the ot Water Base eating Capacities table (page 30) for the given unit, coil and gpm. (For this example, 42DC16 4-row coil at 7.27 gpm.) Use interpolation to determine the nominal heating capacity to be MBtuh. III Adjust the nominal heating capacity for actual entering air and water temperatures. Enter the ot Water Capacity Correction Factors table (page 29) for the given air temperature (55 F) and water temperature (160 F). Find the correction factor of Using the nominal heating capacity from Step II: Adjusted Capacity = eating Capacity x Correction Factor = MBtuh x = MBtuh IV Determine actual heating capacity. Enter the Air Delivery table (page 15) for the selected unit at the given external static pressure (from Example 1). At 0.30 in. wg esp, a 42DC size 16 with a 4-row coil delivers 1540 cfm. Now correct the heating capacity. Enter the Cooling Capacity Correction Factors table (page 20). At unit size 16 and 1540 actual cfm (from the Air Delivery table) use interpolation to find the S factor to be Actual eating Capacity = Adjusted Capacity x S = MBtuh x = MBtuh Selected coil meets heating load requirements. (If necessary, the hot water temperature can be increased to meet heating capacity requirements at given gpm.) V Determine hot water pressure drop. Use the Water Pressure Drop curve (page 31) with the selected unit/coil combination. Enter the curve with the given gpm and project upward to the line representing the selected unit size (size 16, 4-row coil with 7.27 gpm in this example). Read horizontally to the left to find the pressure drop (2.05 ft wg). Example 3: Floor unit cooling at high elevation I Determine job requirements. Given: Room Sensible Cooling Load MBtuh Room Total Cooling Load MBtuh Entering Air Temperature... 67Fwb, 80Fdb Entering Water Temperature... 45F Water Temperature Rise... 10degrees F Air Delivery cfm Elevation ft Unit Type... Vertical, Closet Type External Static Pressure in wg II Determine probable unit size. A. From the Physical Data table, find that a 42DD10 is a nominal 1000 cfm closet type unit. B. Select the standard 4-row coil to determine if it will meet the required performance. Assume that 10 F temperature rise is a critical requirement. C. Enter the cooling curve for this unit at 10 F temperature rise. Read down to the entering water temperature (45 F) and horizontally to the left to the given wet bulb (67 F) (Point 1) and then down to find the nominal total capacity, 34.5 MBtuh. To find nominal sensible capacity, extend the horizontal line to the left from Point 1 to the given dry bulb line (80 F) and down to the nominal sensible capacity of 24.0 MBtuh. III Correct capacities for airflow. A. From the Air Delivery table (page 15), find that the unit will provide 1000 cfm at 0.25 in. wg external static pressure. B. Since the unit is performing at nominal air quantity there is no total or sensible heat correction required. IV Correct capacities for elevation. A. Find total heat correction of 0.98 and sensible heat correction 0.93 (page 20) for 2000 ft elevation. B. Actual Total eat = 0.98 x 34.5 MBtuh = 33.8 MBtuh Actual Sensible eat = 0.93 x 18.5 MBtuh = 16.0 MBtuh 12

13 Example 4: Electric heating I Determine job requirements. Given: Unit Selected for Cooling... 42DD10 Room eating Load... 10MBtuh 120-v Electric eat II Determine electric heater required. Determine the electric heat kw requirement using the following formula: eating Load (MBtuh) kw = = = 2.92 Enter the Electric eater Selection table (page 32) at the selected unit size and voltage. Find that for a 42DD, size 10, using 120-v electric power, a 3.0 kw heater is available and meets the required heating capacity of 2.92 kw. Example 5: General selection procedure for 4-pipe coil options I Determine actual air delivery. Determine actual air delivery based on total number of coil rows required. (For example: 4 cooling/ 1 heating = 5.) Enter Air Delivery table for unit size and total rows required. Use this actual cfm for determining capacity correction factors. II Select Cooling. Proceed with cooling selection per Selection Examples 1-3. III Select heating. Select heating based on same actual cfm and sensible heat factor for cooling selection. The gpm will be different than that selected for cooling. Follow the procedure in example in Example 2 for selection of a separate one- or 2-row coil to meet heating load. (Use either a specified heating gpm or work from required MBtuh load to determine gpm for the one- or 2-row coil.) ARI certification The 42D Series Units are certified in compliance with the Air Conditioning and Refrigeration Institute (ARI) Industry Standard for room fan coil units. Approved standard ratings are tabulated below: ARI Approved Standard Ratings* UNIT TYPE 42DF UNIT SIZE COOLING CAPACITY NOMINAL POWER GPM CFM Total Sensible INPUT (WATTS)** eat Btuh eat Btuh ,100 13, ,400 17, ,300 24, ,800 30, ,900 34, *Ratings based on motor at high fan speed, standard air and dry coil operation, 10 degrees F water temperature rise; entering air temperatures of 80 F db, 67 F wb; entering temperature 45 F. With standard 4-row coil. **Motor type, permanent split capacitor, operating at voltage. 13

14 Performance data UNIT SIZE ROWS FANS SPEED AIR DELIVERY (CFM) 60 Z MOTOR 42DA EXTERNAL STATIC PRESSURE (in. wg) IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW

15 UNIT SIZE ROWS FAN SPEED AIR DELIVERY (CFM) 60 Z MOTOR (cont) 42DC, DD, AND DE EXTERNAL STATIC PRESSURE (in. wg) IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG NED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW

16 Performance data (cont) UNIT SIZE ROWS AIR DELIVERY (CFM) 60 Z MOTOR (cont) FAN SPEED 42DF EXTERNAL STATIC PRESSURE (in. wg) IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW IG MED LOW

17 AIR DELIVERY (CFM) 50 Z MOTOR 42DA UNIT SIZE FAN SPEED ROWS Low Med igh igh* External Static Pressure (in. wg) * If performance data with external static pressure at medium or low speed is required, consult Carrier. 17

18 Performance data (cont) AIR DELIVERY (CFM) 50 Z MOTOR (cont) 42DC, DD, AND DE UNIT SIZE FAN SPEED ROWS Low Med igh igh* External Static Pressure (in. wg) * If performance data with external static pressure at medium or low speed is required, consult Carrier. 18

19 AIR DELIVERY (CFM) 50 Z MOTOR (cont) 42DF UNIT SIZE FAN SPEED ROWS Low Med igh igh* External Static Pressure (in. wg) * If performance data with external static pressure at medium or low speed is required, consult Carrier. 19

20 Performance data (cont) TEMPERATURE (F) ENTALPY AT SATURATION ENTALPY AT SATURATION (Btu per lb of dry air) TEMPERATURE (F) ENTALPY AT SATURATION (Btu per lb of dry air) D SERIES COOLING CAPACITY CORRECTION FACTORS UNIT SIZE ACTUAL CFM T S T S T S T S T S T S T S T S S Sensible eat T Total eat NOTE: Use Sensible eat correction factors when calculating heating capacity. ALTITUDE COOLING CORRECTION FACTORS ELEVATION TOTAL EAT SENSIBLE EAT

21 42D SERIES COOLING CURVES SIZE 06 (NOMINAL 600 CFM) 4-ROW COIL SIZE 06 (NOMINAL 600 CFM) 6-ROW COIL 21

22 Performance data (cont) 42D SERIES COOLING CURVES (cont) SIZE 08 (NOMINAL 800 CFM) 4-ROW COIL SIZE 08 (NOMINAL 800 CFM) 6-ROW COIL 22

23 42D SERIES COOLING CURVES (cont) SIZE 10 (NOMINAL 1000 CFM) 4-ROW COIL SIZE 10 (NOMINAL 1000 CFM) 6-ROW COIL 23

24 Performance data (cont) 42D SERIES COOLING CURVES (cont) SIZE 12 (NOMINAL 1200 CFM) 4-ROW COIL SIZE 12 (NOMINAL 1200 CFM) 6-ROW COIL 24

25 42D SERIES COOLING CURVES (cont) SIZE 14 (NOMINAL 1400 CFM) 4-ROW COIL SIZE 14 (NOMINAL 1400 CFM) 6-ROW COIL 25

26 Performance data (cont) 42D SERIES COOLING CURVES (cont) SIZE 16 (NOMINAL 1600 CFM) 4-ROW COIL SIZE 16 (NOMINAL 1600 CFM) 6-ROW COIL 26

27 42D SERIES COOLING CURVES SIZE 18 (NOMINAL 1800 CFM) 4-ROW COIL SIZE 18 (NOMINAL 1800 CFM) 6-ROW COIL 27

28 Performance data (cont) 42d SERIES COOLING CURVES (cont) SIZE 20 (NOMINAL 2000 CFM) 4-ROW COIL SIZE 20 (NOMINAL 2000 CFM) 6-ROW COIL 28

29 UNIT SIZE SAT. SUCT TEMP T - Total eat S - Sensible eat DIRECT EXPANSION (DX) BASE COOLING CAPACITIES* (MBtuh) 4 ROW 6 ROW Entering Air Temperature (F) db/wb 76/63 78/65 80/67 82/69 76/63 78/65 80/67 82/69 T S T S T S T S T S T S T S T S * Capacity based on R-22. For refrigerants other than R-22 consult factory. Ratings at nominal cfm. All DX units to operate at high speed only. DX CFM CORRECTION FACTORS %OF CORRECTION FACTOR NOMINAL CFM Total Sensible DX Total Capacity (MBtuh) = Base T x Total Correction Factor DX Sensible Capacity (MBtuh) = Base S x Sensible Correction Factor % of Cfm = Actual Cfm (from Air Delivery tables) Cfm NOTE: Consult factory for values outside of table. 42D OT WATER CAPACITY CORRECTION FACTORS ENTERING ENTERING WATER TEMPERATURE (F) AIR TEMPERATURE (F) NOTE: ot Water eating Capacity (MBtuh) = Base Capacity x ot Water Capacity Correction Factor x S (S value found in Cooling Capacity Correction Factors table on page 20). 29

30 Performance data (cont) 42D OT WATER BASE EATING CAPACITIES (MBtuh) ROWS 1 ROW 2 ROW 4 ROW 6 ROW UNIT GPM SIZE NOTE: Ratings based on nominal cfm, 70 F edb, 180 F ewt. 42D STEAM COIL BASE EATING CAPACITIES (Btuh) UNIT 70 F ENTERING AIR TEMPERATURE SIZE 1-Row Coil 2-Row Coil 06 28,900 52, ,400 70, ,000 86, , , , , , , , , , ,000 NOTES: 1. Ratings based on nominal cfm, 70 F entering dry bulb, 2 psig steam. 2. All capacities above 50,000 Btuh rating are beyond the capacity of the standard control valve. Consult factory for these applications. STEAM PRESSURE CORRECTION FACTORS EAT (F) STEAM PRESSURE (PSIG) NOTE: Steam eating Capacity (Btuh) = Base Capacity x Pressure Correction Factor x S (S value found in Cooling Capacity Correction Factors table on page 20.) 30

31 WATER PREPSSURE DROP CURVES 31

32 Application data Electric heaters Total electric heat Complete heating during heating season: No boiler is required. eating and/or cooling may be available on an individual basis the year round with only a two-pipe system. Chilled water is used for cooling, and the electric heater is used for heating. Individual room controls can be supplied to give either manual or automatic changeover. Auxiliary electric heat eating between seasons or during cooling season when chilled water is being circulated: Individual room controls can be supplied to provide electric heat only when chilled water is in the building piping system. During regular heating season, heating is provided by hot water being circulated in the 2-pipe system. Electrical data 42D ELECTRIC EATER DATA EATER kw EATER VOLTAGE FLA FLA Full Load Amps NOTES: 1. All heaters are single-stage and single-phase. 2. In all units using over 48 amps, the heating elements are subdivided and protected. Additional cost is incurred because of added components. 3. A separate power source is required for motor and heaters except when motors and heaters of same voltage are ordered in conjunction with a single power source wiring option. This option, which meets NEC requirements, consists of a factory-furnished and installed junction box and fuse for 6.25 amp (max) fan and control circuit connection to a single power source. Power supply circuit to unit must be field furnished and installed in accordance with applicable codes. UL Listing All 42D hydronic heating/cooling units are UL approved,except for the 42DF. All 42D units, including the 42DF, are CSA approved. 32

33 42DA MOTOR DATA VOLTS-P-Z / UNIT SIZE FAN * SPEED p p p p 320/ / / / / / / (2) 360/3.60 L 105/ / / / / / / / / / / (2) 300/1.40 L 105/ / / / / / / / / / / (2) 365/1.35 L 115/ / / / / / / / / / / (2) 250/1.25 L 90/ / / / DA MOTOR DATA (cont) VOLTS-P-Z / UNIT SIZE FAN 14* 16* 18* 20* SPEED p p p p 680/ / / / (2) 440/ (2) 525/ (2) 750/ (2) 785/8.10 L 225/ / / / / / / / (2) 310/ (2) 360/ (2) 420/ (2) 420/1.90 L 225/ / / / / / / /3.70 4(2) 560/ (2) 560/ (2) 560/ (2) L 350/ / / / / / / /4.90 5(2) 345/ (2) 500/ (2) 490/ (2) 490/2.40 L 230/ / / /1.60 * Total motor amps and watts shown for units with 2 motors (size 12 through 20) NOTE: Motor nameplate amps may vary. 42DC, DD AND DE MOTOR DATA VOLTS-P-Z / UNIT SIZE FAN * SPEED p p p p 310/ / / / / / / (2) 360/3.90 L 105/ / / / / / / / / / / (2) 360/1.70 L 105/ / / / / / / / / / / (2) 350/1.30 L 115/ / / / / / / / / / / (2) 310/1.56 L 105/ / / /1.15 * Total motor amps and watts shown for units with 2 motors (size 12 through 20) NOTE: Motor nameplate amps may vary. 33

34 Electrical data (cont) 42DC, DD, AND DE MOTOR DATA (cont) VOLTS-P-Z / UNIT SIZE FAN 14* 16* 18* 20* SPEED p p p p 720/ / / / (2) 490/ (2) 660/ (2) 680/ (2) 760/7.30 L 260/ / / / / / / /3.60 5(2) 370/ (2) 360/ (2) 420/ (2) 420/2.00 L 240/ / / / / / / /3.30 4(2) 530/ (2) 540/ (2) 540/ (2) 580/2.20 L 345/ / / / / / / /4.50 5(2) 320/ (2) 480/ (2) 480/ (2) 480/2.35 L 230/ / / /1.60 * Total motor amps and watts shown for units with 2 motors (size 12 through 20) NOTE: Motor nameplate amps may vary. 42DF MOTOR DATA VOLTS-P-Z / UNIT SIZE FAN * SPEED p p p p 260/ / / / / / / (2) 360/3.40 L 125/ / / / / / / / / / / (2) 300/1.40 L 105/ / / / / / / / / / / (2) 255/0.85 L 90/ / / / / / / / / / / (2) 240/1.18 L 100/ / / / DF MOTOR DATA (cont) VOLTS-P-Z / UNIT SIZE FAN 14* 16* 18* 20* SPEED p p p p 520/ / / / (2) 390/ (2) 440/ (2) 480/ (2) 580/5.70 L 250/ / / / / / / / (2) 300/ (2) 440/ (2) 420/ (2) 440/2.10 L 220/ / / / / / / /3.30 (2) 340/ (2) 340/ (2) 420/ (2) 580/2.20 L 270/ / / / / / / / (2) 320/ (2) 340/ (2) 340/ (2) 480/2.35 L 200/ / / /1.55 * Total motor amps and watts shown for units with 2 motors (sizes 12 through 20) NOTE: Motor nameplate amps may vary. 34