table of contents - dunham-bush americas · three phase ammeter - single analog ammeter with a 3...

ACHDX Series

Form No: MS0443A

55 to 245 Tons

50Hz50Hz50Hz50Hz

Products That Perform...By People Who Care

R

Air Cooled Horizontal Rotary Screw Chillers

R407C

TABLE OF CONTENTS Page No. Nomenclature ...................................................................... 2 Standard Features............................................................... 2 Unit Features: Evaporators............................................... 3 Unit Features: Advanced Controller ................................. 4 Unit Options......................................................................... 5 Unit Accessories ................................................................. 6

Page No. Application Data ....................................................................6 Performance Data..................................................................7 Physical Specifications ........................................................8 Dimensional Data .................................................................9 Evaporator Water Pressure Drop.......................................12 Typical Wiring Schematic ...................................................13

NOMENCLATURE

AC H DX 55 S 5 S P

STANDARD FEATURES

Size Range 12 models from 55 to 245 tons. Standard version available. Rated with HFC 407c.

Compressor Semi-hermetic rotary screw type at 2950 RPM. Infinite variable slide valve unloading for precise load matching. Compressor cycling for maximum efficiency.

Evaporator Vessels constructed in accordance to ASME CODES Sections Vlll Division I for unfired pressure vessels. Dunham-Bush high efficiency inner-fin tubes design for compactness and weight reduction. 300 psig on refrigerant side design pressure. 200 psig on water side design pressure. Approval Stamp available from JKKP (Malaysia), UDT (Poland), BPA, China State Bureau of Quality and Technical Supervision of the People’s Republic of China and ASME. 1” thick PE foam closed cell insulation.

Air Side Condenser Inner ridged copper tubes with aluminum fins.

450 psig test pressure for condenser coils. Standard unit fans - direct drive at 960 RPM All fan motors are designed for outdoor installations. Fan cycling is standard for all units. Fan speed control is an option for low ambient application. Copper, hydrophilic and electro-tined coil are available options.

Electrical/Control Reliable Multi-function programmable electronic controller is standard for all models. 3 digits LED display with decimal point and sign. Compressor loading/ staging based on leaving fluid temperature. High and low pressure protection. Cooler fluid freeze protection. Staggered starting compressors. Anti recycle timing. Fan cycling. Accept remote and stop signal. Cooler leaving fluid temperature. Discharge and suction pressure gauges for all circuits. 115V control circuit transformer standard for all models.

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Air Cooled

Horizontal Screw Compressor

S - Standard Q - Special

S – Single Circuit D – Dual Circuit Nominal Tons

Blank – R22 P – R407c

DX Packaged Chiller 5 - 50Hz 6 - 60Hz

FLUID IN

RETURN WATERBULB WELL

FREEZE STATBULB WELL

FLUID OUT

PATENTED INNER-FINCONSTRUCTION

VENT AND DRAIN

REFRIGERANTOUT

“SEE PHYSICAL SPEC’SFOR CONNECTION SIZE

REFRIGERANTIN

REMH

UNIT FEATURES: EVAPORATORS The evaporators incorporate the most advanced vessel technology available today, including the patented Inner-Finned construction of the CH and EX evaporators. Vessels are designed and constructed to meet the requirements of the ASME Code, Section Vlll, Division 1 for unfired pressure vessels and are approved and certified by the JKKP (the Malaysian DOSH), as well as the Polish and the Chinese authorities.

The CH evaporators incorporate 1/2 inch (12.7 mm) copper tubes brazed into tube-sheets. The vessel is supplied with welded heads. The EX evaporators incorporate 5/8 inch (15.9mm) copper tubes and removable heads for ease of tube maintenance. Vent and drain connections are included on all vessels.

Typical For 2 Circuit Evaporators

OVABLEEADS BOTH

ENDS

WATER FLOW PATH

INTERNAL WATER BAFFLES Table 1 : Vessel Design Pressure

Water Side Refrigerant Side Shell & Tube Heat Exchanger

(Evaporator) Design Pressure (Psig)(Kpa)

Test Pressure (Psig)(Kpa) Design Pressure (Psig)(Kpa)

Test Pressure (Psig)(Kpa)

CH, EX 200 (1379) 260 (1793) 300 (2069) 330 (2275)

Air Side Condenser

All units have direct driven propeller fans and motors. Close blade tip clearance with the fan venturi ensures smooth, quiet operation.

All air-cooled condensers are constructed with 3/8 inch (9.5 mm) diameter copper tubes mechanically expanded into aluminum fins for maximum efficiency of heat transfer between the circulating refrigerant and air. The fins have full-spacing collars which completely cover each tube. The staggered tube design improves the thermal efficiency of the coil and eliminates bypassing of air around the tubes. The return bends, headers

and nipples are all copper, sized for minimum pressure drop, brazed with inert gas in the tubes and tested after fabrication to 450 psig.

Partitions separate each fan section to eliminate possible back spin. The microcomputer Vision 2020i fan cycling control is able to decrease the minimum ambient temperature at which the package equipment will effectively start and operate.

All unit casing is constructed with heavy-gauge galvanized steel sheets. Powder-coat painting is applied for maximum protection and appearance.

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UNIT FEATURES: ADVANCED CONTROLLER Vision2020i a flexible and advance programmable electronic controller designed specifically for the applications and precise control of Dunham-Bush Rotary Screw compressor chillers. The controller board is provided with a set of terminals that connected to various devices such as temperature sensors, pressure and current transducers, solenoid valves, compressors and fans contactors, control relays and etc. Three sizes of controller boards are provided to handle different number of input and output requirements: DB*-S small board, DB*-M medium board and DB*-L large board. The unit algorithm program and operating parameters are stored in FLASH-MEMORY that does not require a back-up battery. The program can be loaded through PC or programming key. Vision2020i controller is equipped with a user friendly terminal with a semi-graphic display and dedicated keys that provides easy access to the unit operating conditions, control set points and alarm history. Each unit’s controller can be programmed and connected to the local DBLAN network that allows multiple units sequencing control without additional hardware. The DBLAN is local area network made up of several chillers’ controller. Note: DB* represents DB1, DB2 or DB3. Display and User Terminal Vision2020i controller is design to work with a user friendly back-lit 132 by 64 pixels DBG1 semi-graphic Display panel connected with controller through telephone cable. The terminal allows carrying out all program operations. The user terminal allows displaying the unit working conditions, compressor run times, alarm history and modifying the parameters. The display also has an automatically self-test of the controller on system start-up. Multiple messages will be displayed by automatically scrolling from each

message to the next. All of these messages are spelled out in English language on the display terminal. There are 15 dedicated buttons enable user to access information, base on the security level of the password. For more detail operation of the DBG1 Display Terminal, please refer to the Unit Operation Manual.

Easily accessible measurements include: Leaving chilled water temperature Leaving chiller water temperature derivative Evaporator Pressure Condenser Pressure Compressor amp draw of each compressor Compressor elapsed run time of each compressor Compressor starts status Oil level sensor status Water temperature reset value Water flow switch status External start/stop command status

Optional entering chilled water temperature, leaving and entering condenser water temperature are available. With this option the operator can quickly and accurately read all significant water temperatures and eliminate the need for often-inaccurate thermometers. Voltage readout is also offered as an optional feature.

Capacity Control Leaving chilled water temperature control is accomplished by entering the water temperature setpoint and placing the controller in automatic control. The unit will monitor all control functions and move the slide valve to the required operating position. The compressor ramp (loading) cycle is programmable and may be set for specific building requirements. Remote adjustment of the leaving chilled water setpoint is accomplished through either direct connection of other Dunham-Bush control packages to the controller through either the RS485 long distance differential communications port, via terminal or modem connected to the RS232 communication port, or from an external Building Automation System supplying a simple 4 to 20mA signal. Remote reset of compressor current limit may be accomplished in a similar fashion.

System Control The unit may be started or stopped manually, or through the use of an external signal from a Building Automation System. In addition, the controller may be programmed with seven-day operating cycle or other Dunham-Bush control packages may start and stop the system through inter-connecting wiring.

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UNIT FEATURES: ADVANCED CONTROLLER System Protection The following system protection controls will automatically act to insure system reliability:

Low suction pressure High discharge pressure Freeze protection Low differential pressure Low oil level Compressor run error Power loss Chilled water flow loss Sensor error Compressor over current Compressor Anti-recycle

The controller will retain the latest up to 99 alarm conditions complete with time of failure together data stamping on critical sensor readings in an alarm history. This tool will aid service technicians in troubleshooting tasks enabling downtime and nuisance trip-outs to be minimized.

Remote Monitoring The controller is complete with an optional RS485 communications card and NETVISOR software necessary for remote monitoring and controlled from a PC terminal and optional phone modem. With various optional add-on cards the Vision2020i controller can also be interfaced directly to the BMS with the standard communication protocols using MODBUS, LONWORKS, BACNET MSTP as well as over IP. This sophisticated feature makes servicing easier and more convenient to the system. The controller as standard is additionally equipped with history files which may be used to take logs which may be retrieved via the phone modem or internet connection periodically. Now owners of multiple buildings have a simple and inexpensive method of investigating potential problems quickly and in a highly cost effective manner. Dunham-Bush has various open protocols on its controller to allow direct interface with Building Management Systems.

UNIT OPTIONS Options Installed At The Factory

Controller (Vision 2020i) - A standard feature for all models. Controller monitoring of return chilled water and leaving chilled water temperature. Heat reclaim condensers (desuperheaters) are available for special applications. Unit mounted disconnect for each compressor and control circuit with fuses and fuse block for 400 to 575 volt applications. Copper Condenser Fins- Copper fins offer maximum corrosion protection for severe conditions. In more corrosive environments, hydrophilic or electro-tinned fins would be more appropriate. Indicator Light Set - Provides indicator lights for control power, motor overload, high motor temperature and alarm status. Hot Gas Bypass - Consists of hot gas bypass regulator(s) and solenoid valve(s) for each circuit for applications with a minimum load which may dip below the unit’s minimum unloaded capacity. Control Circuit Transformer - appropriate KVA rating to power the 115/1/50 control circuit and compressor oil heaters off the service voltage. Chiller Heater Transformer - Appropriate KVA rating to power the 115/1/50 evaporator vessel heater tape. 115V Convenience Outlet - Duplex outlet located inside the control panel and protected by a 15 amp fuse. Over/Undervoltage and Phase Protection Relay

- Protects against low or high incoming voltage conditions as well as phase loss, phase reversal and phase imbalance by opening the control circuit. It is an automatic reset device. Electronic Expansion Valves - For more precise control over a wider range of operation. Ideal for low ambient and wide operating ambient temperature range applications. Gauges - Includes suction and discharge pressure gauges for all unit models. These are not necessary with the controller. Low Ambient Controls (LAC option) [Kindly refer to Low Ambient Operation/ Freeze Protection]. Compressor Start Counter - One start counter provided for each compressor, located inside the control panel. Compressor Elapsed Time Meter - One elapsed time meter to register run hours per compressor, located inside the control panel. Three Phase Ammeter - Single analog ammeter with a 3 phase selector switch for indication, located inside the control panel. Three Phase Voltmeter - Single analog voltmeter installed with a 3 phase selector switch for indication, located inside the control panel. Entering Fluid Temperature Sensor - Temperature sensor and bulb installed in evaporator inlet connection to supplement the standard leaving (outlet) fluid temperature sensor. Condenser coil guard protects the condenser coils from harsh environments.

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UNIT ACCESSORIES Accessories shipped unmounted

Water Flow Switch - Paddle type field adjustable flow switch available for all units, installed into the unit safety circuit so that the package will remain off until there is water flow. Helps to prevent evaporator from freezing. Vapor-proof enclosure, for use on water or glycol systems. The flow switch is to be shipped loose and installed at site. Rubber-in-shear Isolators - Designed for ease

of installation, these rubber, one-piece, molded isolators are applicable for most installations. Spring Isolators - These housed spring assemblies have a neoprene friction pad at the bottom to prevent the passage of noise, and a spring locking levering bolt at the top. Neoprene inserts prevent contact between the steel upper and lower housings. Suitable for more critical applications as compared to rubber-in-shear isolators.

APPLICATION DATA Low Ambient Operation / Freeze Protection The heater strip must be wrapped around the evaporator shell as well as the water piping. If the unit is required to operate at an ambient temperature below 55°F (12.8°C), solenoid valves would have to be installed along the coil headers with the exception of the last running coil. If the unit is required to operate below 32°F (0°C). Both the solenoid coil control and VFD would have to be incorporated. An additional liquid receiver, wrapped with the heater strip, would have to be added for each refrigerant circuit if the required operating ambient temperature ranges between 0°F (-17.8°C) and 20°F (-6.7°C). In addition to the accessories mentioned, an additional electronic expansion valve is required for each refrigerant circuit if the operating ambient goes below 0°F (-17.8°C). Condenser pressure regulators would have to be incorporated as well to regulate the head pressure. The minimum operating ambient temperature is -20°F (-28.9°F). For low ambient applications, kindly consult factory as the unit would have to be redesigned to suit the customer’s specific needs. Desuperheaters A hot gas desuperheater can be factory supplied for field installation. Tees in refrigerant lines with shut off valves can be supplied. Kindly consult factory for further details. Water Circuit Constant water flow required with a minimum of 3 gallons per ton ( 3.3 liters / kWo ) increasing to 10 gallons (11 liters) for process, low load applications with small temperature range and/or vastly fluctuating load conditions. Glycol Freeze Protection If the chiller or fluid piping may be exposed to temperatures below freezing temperature, then glycol protection is recommended. The re-commended protection is 15°F (8.3°C) below the

minimum ambient temperature. Use only glycol solutions approved for the particular heat exchanger duty. The use of automotive anti-freeze is not recommended because they have short-lived inhibitors and fouling of the vessels will occur. If the equipment is exposed to freezing temperatures and not in used, the vessels and piping should be drained. If the equipment is being used for operating conditions below 42°F (5.5°C) with standard vessels or below 40°F (4.4°C) with optional 40°F (4.4°C) vessels, glycol should be used to prevent damage due to freezing. The freeze protection level should be 20°F (11°C) lower than the leaving brine temperature. The use of glycol penalizes the causes a performance as shown in Table 4 for ethylene glycol and Table 5 for propylene glycol and needs to be considered in the unit selection procedure.

Table 4 : Ethylene Glycol Freeze Point

% E. G. By

Weight °F °C

C1 Capacity Factor

K1 kW

Rate

G1 Flow

Factor

P1 P.D.

Factor

10 26.2 -3.2 0.995 0.998 1.019 1.050 15 22.4 -5.3 0.991 0.997 1.030 1.083 20 17.8 -7.9 0.988 0.996 1.044 1.121 25 12.6 -10.8 0.984 0.995 1.060 1.170 30 6.7 -14.1 0.981 0.994 1.077 1.219 35 0.0 -17.8 0.977 0.992 1.097 1.275 40 -8.0 -25.8 0.973 0.991 1.116 1.331 45 -17.5 -27.5 0.968 0.990 1.138 1.398 50 -28.9 -33.8 0.964 0.989 1.161 1.466

Table 5 : Propylene Glycol Freeze Point

% P. G.By

Weight °F °C

C2 Capacity Factor

K2 kW

Rate

G2 Flow

Factor

P2 P.D.

Factor

10 26.1 -3.3 0.988 0.994 1.005 1.019 15 22.8 -5.1 0.984 0.992 1.008 1.031 20 19.1 -7.2 0.978 0.990 1.010 1.051 25 14.5 -9.7 0.970 0.988 1.015 1.081 30 8.9 -12.8 0.962 0.986 1.021 1.120 35 2.1 -16.6 0.952 0.981 1.033 1.163 40 -6.4 -21.3 0.943 0.978 1.043 1.213 45 -16.6 -27.0 0.933 0.975 1.057 1.269 50 -28.9 -33.8 0.924 0.972 1.073 1.326

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PERFORMANCE DATA R407c

CHILLER AMBIENT AIR TEMPERATURE °F LWT MODEL 85.00 95.00 105.00 115.00

°F ACHDX TONS KWO KWI TONS KWO KWI TONS KWO KWI TONS KWO KWI 55S-5SP 55.6 195.7 62.8 49.9 175.3 72.4 43.5 153.2 84.0 37.2 131.0 95.6 70S-5SP 71.7 252.1 75.6 64.2 225.9 87.0 56.1 197.4 100.6 48.0 168.8 114.3 90S-5SP 90.7 318.9 97.3 81.3 285.8 112.1 71.0 249.7 129.8 60.7 213.6 147.4 105S-5SP 106.2 373.6 111.4 95.2 334.8 128.2 83.2 292.5 148.3 71.1 250.2 168.4 120S-5SP 124.1 436.5 131.6 111.2 391.1 151.5 97.2 341.7 175.3 83.1 292.3 199.1 75D-5SP 72.8 255.9 82.7 65.2 229.3 95.5 57.0 200.3 110.5 48.7 171.3 125.6

40.00 85D-5SP 84.5 297.3 93.7 75.7 266.4 107.8 66.2 232.7 125.0 56.6 199.0 142.3 115D-5SP 111.3 391.3 125.6 99.7 350.7 144.8 87.1 306.3 168.0 74.5 261.9 191.1 140D-5SP 143.4 504.2 151.1 128.5 451.9 174.0 112.2 394.8 201.3 96.0 337.6 228.5 180D-5SP 181.4 637.9 194.6 162.5 571.7 224.2 142.0 499.4 259.5 121.5 427.1 294.8 210D-5SP 212.5 747.2 222.9 190.4 669.7 256.4 166.3 585.0 296.5 142.3 500.3 336.7 245D-5SP 248.2 872.9 263.2 222.4 782.3 303.0 194.3 683.4 350.6 166.2 584.6 398.3 55S-5SP 58.2 204.8 63.1 52.3 184.0 72.7 45.9 161.3 84.1 39.4 138.7 95.5 70S-5SP 75.0 263.9 76.0 67.4 237.1 87.3 59.1 207.9 100.9 50.8 178.7 114.6 90S-5SP 94.9 333.8 97.8 85.3 299.9 112.4 74.8 263.0 130.0 64.3 226.1 147.7 105S-5SP 111.2 391.1 111.9 99.9 351.4 128.7 87.6 308.1 148.7 75.3 264.8 168.7 120S-5SP 129.9 456.8 132.2 116.7 410.5 152.0 102.3 359.9 175.7 88.0 309.3 199.4 75D-5SP 76.2 267.9 83.1 68.4 240.7 95.6 60.0 211.0 110.7 51.6 181.4 125.8




48.00 85D-5SP 101.1 355.4 95.6 91.4 321.5 109.6 81.0 284.7 126.2 70.5 247.9 142.9 115D-5SP 133.0 467.9 128.2 120.3 423.3 147.0 106.6 374.8 169.5 92.8 326.3 192.1 140D-5SP 171.4 602.9 155.2 155.1 545.4 176.8 137.3 482.9 203.4 119.5 420.4 230.1 180D-5SP 216.9 762.7 199.5 196.2 689.9 227.6 173.7 610.9 262.2 151.2 531.8 296.9 210D-5SP 254.1 893.5 229.1 229.8 808.3 260.5 203.5 715.7 299.9 177.2 623.0 339.3 245D-5SP 296.8 1,043.8 270.3 268.5 944.2 307.7 237.7 836.0 354.4 206.9 727.8 401.0 55S-5SP 69.5 244.3 64.6 63.0 221.4 73.9 55.9 196.6 85.1 48.9 171.8 96.2 70S-5SP 89.5 314.8 78.3 81.1 285.3 88.8 72.0 253.3 102.1 62.9 221.3 115.4 90S-5SP 113.2 398.2 100.6 102.6 360.9 114.4 91.1 320.5 131.5 79.6 280.0 148.7 105S-5SP 132.7 466.5 115.4 120.2 422.9 130.9 106.8 375.5 150.4 93.3 328.0 169.9 120S-5SP 155.0 545.0 136.2 140.5 494.0 154.6 124.7 438.6 177.8 109.0 383.2 200.9 75D-5SP 90.9 319.6 85.1 82.4 289.6 97.2 73.1 257.1 111.9 63.9 224.6 126.6

50.00 85D-5SP 105.5 371.2 96.4 95.7 336.4 110.0 84.9 298.8 126.6 74.2 261.1 143.3 115D-5SP 138.9 488.6 129.2 125.9 442.8 147.8 111.8 393.2 170.1 97.7 343.6 192.5 140D-5SP 179.0 629.6 156.6 162.3 570.7 177.6 144.1 506.7 204.2 125.9 442.6 230.9 180D-5SP 226.5 796.5 201.3 205.3 721.9 228.7 182.2 641.0 263.0 159.2 560.0 297.3 210D-5SP 265.3 933.1 230.9 240.5 845.8 261.9 213.5 750.9 300.9 186.6 656.1 339.9 245D-5SP 309.9 1,089.9 272.4 280.9 988.0 309.3 249.4 877.2 355.5 217.9 766.4 401.8

LEGEND: LWT : Leaving Chilled Water Temperature KWI : Compressor Power Input In kW TON : Cooling Capacity In Ton. KWO: Cooling Capacity In KW

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PHYSICAL SPECIFICATIONS R407c

MODEL ACHDX 55S-5SP 70S-5SP 90S-5SP 105S-5SP 125S-5SP

COMPRESSOR

MODEL (QTY) HSC 1509 x 1 HSC 1512 x 1 HSC 1709 x 1 HSC 1711 x 1 HSC 1811 x 1 RPM 2950 2950 2950 2950 2950 MIN. % UNIT CAPACITY REDUCTION 25% 25% 25% 25% 25%

EVAPORATOR

MODEL (QTY) HDJ04d(1) HDL04c(1) XDM09e(1) XDN09e(1) XDN10e(1) WATER CONNECTOR INCH [MM] 4 [101.6] 4 [101.6] 5 [127] 5 [127] 6 [152.4] NOM. WATER FLOW / P D GPM/ FT IN WG 127.7/19.5 160.4/8.7 204.9/12.5 236.1/22.1 298.8/17.8 MIN/ MAX WATER FLOW GPM 68.5/205 100.7/301.5 140.3/420 119.7/358 174.5/522.6 MIN/ MAX WATER PD FT IN WG 6.4/45.5 3.8/26.9 6.35/44.8 6.6/46.4 6.8/48.3

CONDENSER

COIL ROWS DEEP/ TOTAL FA (SQ.FT) 3/81.3 4/81.3 3/121.9 4/121.9 3/162.6 NO. OF FAN 4 4 6 6 8 FAN DIA. MM 800 800 800 800 800 MOTOR HP (QTY) 1.5(4) 1.5(4) 1.5(6) 1.5(6) 1.5(8) FLA, AMP (QTY) 3.2(4) 3.2(4) 3.2(6) 3.2(6) 3.2(8) TOTAL CFM 40480 42400 69600 65400 91440 MIN. AMBIENT TEMP. (F) AT MIN. LOAD 55 55 55 55 55

ELECTRICAL

NOM. VOLTAGE 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 UNIT RLA A 130 156 204 232 272 UNIT MAX. INRUSH A 304 408 443 576 661

GENERAL

UNIT LENGTH INCH[MM] 98 [2489] 98 [2489] 139.5 [3543] 139.5 [3543] 181.5 [4610] UNIT WIDTH INCH[MM] 88 [2235] 88 [2235] 88 [2235] 88 [2235] 88 [2235] UNIT HEIGHT INCH[MM] 85 [2159] 85 [2159] 88.5 [2248] 88.5 [2248] 88.5 [2248] SHIPPING WEIGHT KG[LBS] 2590 [5710] 2923 [6444] 4135 [9117] 4343 [9575] 5001 [11025] OPERATING WEIGHT KG[LBS] 2607 [5748] 2967 [6541] 4290 [9457] 4497 [9915] 5211 [11489] OPERATING CHARGE R407C KG[LBS] 55 [121] 70 [154] 90 [198] 105 [231] 125 [275]

MODEL ACHDX 75D-5SP 85D-5SP 115D-5SP 140D-5SP 180D-5SP 210D-5SP 245D-5SP

COMPRESSOR

MODEL (QTY) HSC 1309 (2) HSC 1311 (2) HSC 1509 (2) HSC 1512 (2) HSC 1709 (2) HSC 1711 (2) HSC 1811 (2) RPM 2950 2950 2950 2950 2950 2950 2950 MIN. % UNIT CAPACITY REDUCTION 12.5% 12.5% 12.5% 12.5% 12.5% 12.5% 12.5%

EVAPORATOR

MODEL (QTY) XDK09f(1) XDM09e(1) XDM12e(1) XDN12e(1) XDP12e(1) XFQ10d(1) XFQ12e(1) WATER CONNECTOR INCH/ [MM] 4/[101.6] 5/[127] 5/[127] 6/[152.4] 8/[203.2] 10/[254] 10/[254] NOM. WATER FLOW/ P D GPM / FT IN WG 167.2/14.4 194.7/11.4 269.7/16.8 323.1/18.7 407.4/15.9 477.2/11.21 555.5/20.5 MIN/ MAX WATER FLOW GPM 108.8/325.8 140.3/420 168.9/506.5 190.8/570.6 213.1/637.9 273.4/819.3 240.3/720.8 MIN/ MAX WATER PD FT IN WG 6.71/47 6.35/44.8 7.3/51.8 7.3/51.6 5.1/35.3 4.2/29.3 4.7/32.6

CONDENSER

COIL ROWS DEEP/ TOTAL FA (SQ.FT) 3/121.9 3/121.9 3/162.6 4/162.6 4/203.2 3/282.3 3/329.4 NO. OF FAN 6 6 8 8 10 12 14 FAN DIA. MM 800 800 800 800 800 800 800 MOTOR HP (QTY) 1.5(6) 1.5(6) 1.5(8) 1.5(8) 1.5(10) 1.5(12) 1.5(14) FLA, AMP (QTY) 3.2(6) 3.2(6) 3.2(8) 3.2(8) 3.2(10) 3.2(12) 3.2(14) TOTAL CFM 62880 60720 92800 84800 106000 142200 165900 MIN. AMBIENT TEMP. (F) AT MIN. LOAD 55 55 55 55 55 55 55

ELECTRICAL

NOM. VOLTAGE 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 UNIT RLA A 173 194 259 319 405 459 543 UNIT MAX. INRUSH A 290 361 433 565 642 807 929

GENERAL

UNIT LENGTH INCH[MM] 139.5 [3543] 139.5 [3543] 181.5 [4610] 181.5 [4610] 223.5 [5677] 265.5 [6744] 307.5 [7811] UNIT WIDTH INCH[MM] 88 [2235] 88 [2235] 88 [2235] 88 [2235] 88 [2235] 88 [2235] 88 [2235] UNIT HEIGHT INCH[MM] 88.5 [2248] 88.5 [2248] 88.5 [2248] 88.5 [2248] 88.5/[2248] 96 .5 [2451] 96 .5 [2451] SHIPPING WEIGHT KG[LBS] 4000 [8818] 4126 [9095] 4659.6 [10273] 5627 [12405] 6725 [14825] 8062 [17774] 9073 [20002] OPERATING WEIGHT KG[LBS] 4095 [9027] 4263 [9399] 4791.3 [10563] 5851 [12910] 6997 [15425] 8334 [18373] 9369 [20654] OPERATING CHARGE R407C KG[LBS] 75 [165] 85 [187] 115 [254] 140 [309] 180 [397] 210 [463] 245 [540]

Notes: 1.) LRA is across-the-line (IXL) starting amps. 2.) Minimum Circuit Ampacity (MCA) based on 125% of the largest compressor RLA plus 100% of the other compressor RLA and fan circuit amps. 3.) Maximum Fuse Size (MFS) based on 225% of the largest compressor RLA plus 100% of the other compressor RLA and fan circuit amps. 4.) Voltage range: 414V minimum to 506V maximum.

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DIMENSIONAL DATA ACHDX 55S-5SP, 70S-5SP

ACHDX 90S-5SP, 105S-5SP

ACHDX 125S-5SP Note All dimensions are in inches[mm].

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DIMENSIONAL DATA ACHDX 75D-5SP, 85D-5SP

ACHDX 115D-5SP, 140D-5SP

ACHDX 180D-5SP Note All dimensions are in inches[mm].

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DIMENSIONAL DATA ACHDX 210D-5SP

ACHDX 245D-5SP Note All dimensions are inches[mm].

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1

10

100

10 100 1000

CHILLED WATER FLOW RATE - GPM

PRES

SUR

E D

RO

P - F

T IN

WG

EVAPORATOR WATER PRESSURE DROP

.

SINGLE CIRCUIT

ACHDX 55S-5SP ACHDX 70S-5SP ACHDX 90S-5SP ACHDX 105S-5SP ACHDX 125S-5SP

1

10

100

100 1000

CHILLED WATER FLOW RATE - GPM

PRES

SUR

E D

RO

P - F

T IN

WG

.

DUAL CIRCUIT ACHDX 75D-5SP

ACHDX 85D-5SP ACHDX 115D-5SP ACHDX 140D-5SP ACHDX 180D-5SP ACHDX 210D-5SP ACHDX 245D-5SP

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TYPICAL WIRING SCHEMATIC (2 Compressors)

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07-06

table of contents - dunham-bush americas · three phase ammeter - single analog ammeter with a 3...

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