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INTRODUCTION For more than 100 years, Dunham-Bush has focused on innovative product development. Today, we provide a full portfolio of HVAC/R products from Fan Coil Units to large centrifugal chillers as well as many other innovative green solutions. Our commitment to innovation, matched with an aggressive attitude toward growth, makes Dunham-Bush a leader in global markets. Our product development is tailored to meet the specific needs of customers, building-by-building, country-by-country and region-by-region. No other HVAC/R manufacturer takes this approach to meeting your performance expectations.
ACDS, Air Cooled Scroll Compressor Direct Expansion Chillers, have a cooling capacity range from 10 to 90 TR [35 to 316 kW] in 50Hz version using environmentally sound HFC-410A refrigerant. The entire product line features energy efficiency, installation ease, control flexibility, high reliability, compact footprint and advanced controls.
Scroll Compressors are designed for Commercial/Industrial Applications and provide the same high quality and efficiency as Reciprocating or Screw Compressors. They have been developed specifically for use in Packaged Chillers and Condensing Unit products.
Upon shipment, the new ACDS R410A unit is installation-ready with a compact size, reduced weight, and complete factory piping and wiring. Refrigerant charge is included and a thorough factory test under load is conducted on each unit to ensure trouble-free start-up and operation. TABLE OF CONTENTS
Page No Introduction .................................................................. 2 Nomenclature ............................................................... 2 Standard Features & Benefits ...................................... 3 Unit Features ............................................................... 3 Unit Options/ Accessories ............................................ 6 Application Data ........................................................... 8 Selection Procedure ................................................... 10 Physical Specifications .............................................. 11
Page No Performance Data ...................................................... 12 Dimensional Data ...................................................... 13 Floor Loading Diagram ............................................... 19 Condenser Fan .......................................................... 20 Sound Pressure Data ................................................. 20 Electrical Data ............................................................ 20 Typical Wiring Diagram .............................................. 21 Guide Specifications ................................................... 22
NOMENCLATURE
AC D S 030 AU G S
Air Cooled Packaged Chiller S - Standard Fan B - Low Noise Fan
AU - 400/3ph/50Hz
Scroll Compressor
Direct Expansion Evaporator
R410A
Model
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STANDARD FEATURES & BENEFITS COMPRESSOR
Reliable Tandem scroll compressors Compressor lead-lag configuration on all
models EVAPORATOR
Compact and high efficiency brazed plate heat exchanger
Design pressure of 450 psig [31 bar] on refrigerant circuit
Design pressure of 400 psig [28 bar] on fluid circuit
CONDENSER
Copper tubes with aluminum fins Sub-cooling enhancement for efficiency Low noise direct driven propeller fans IP 54 motor construction
ELECTRICAL/CONTROL Wide range of optional items are available Electromechanical controller, IR 33 for ease of
operation Separate power and control panels High/ low pressure limiting function ability
QUIET OPERATION
Quiet scroll compressors on standard unit Ultra-quiet operation with compressor acoustic
enclosure available as option
UNIT FEATURES SCROLL COMPRESSOR In a scroll compressor, the compression is performed by two scroll elements located in the upper part of the compressor. Suction gas enters the compressor at the suction connection. The motor is suction gas cooled, oil droplets separate and fall into the oil sump. After exiting the electrical motor, the gas enters the scroll elements where compression takes place. The refrigerant gas leaves the compressor through the discharge port. The principle of scroll compression is shown on next page. The centre of the orbiting scroll (in grey) traces a circular path around the centre of the fixed scroll (in black). This movement creates symmetrical compression pockets between the two scroll elements. Low-pressure suction gas is trapped within each crescent-shaped pocket as it gets formed; continuous motion of the orbiting scroll serves to seal the pocket, which decreases in volume as the pocket moves towards the centre of the scroll set increasing the gas pressure. Maximum compression is achieved once a pocket reaches the centre where the discharge port is located; this stage occurs after three complete orbits. Compression is a continuous process: the scroll movement is suction, compression and discharge all at the same time.
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UNIT FEATURES Principle Of Scroll Compression
SUCTION COMPRESSION DISCHARGE
BRAZED PLATE HEAT EXCHANGER (BPHE) BPHE represents the cutting edge of heat exchanger technology – one of the most effective and efficient thermal transfer solutions in the world today.
Extremely Compact - reduction in the volume and weight of a shell-and-tube exchanger of the same capacity. This means great design freedom for every application- and reduced installation costs.
Maximum Material Efficiency - no "dead zone" outside gaskets because there is no need for gaskets.
Reduced Refrigerant Charge - the compact system requires only a fraction of the heat transfer medium, e.g. refrigerant. Less volume costs less-and is positive for the environment.
Lower System Costs - better heat transfer coefficient (HTC) gives better ΔT (temperature difference), which in turn means a lower mass flow of media, resulting in smaller, less expensive pumps, etc. and lower energy consumption.
Small Temperature Difference - operates efficiently even at temperature differences as low as 1 K.
High Working Pressure - capability.
Low Pressure Drop - in most case lower than in any other system. Allows smaller pumps and lower operating costs.
True Counter Flow - design allows close temperature approach.
Self-Cleaning - thanks to high turbulence throughout the exchanger, reducing maintenance time and cost.
Uniform High Quality - plates are pressed in the same tool, brazed in the same automated procedure with rigorous standards of quality control. Performance is known and consistent. Maintenance and repair are minimized.
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UNIT FEATURES AIR SIDE CONDENSER All units have direct drive propeller fans and motors. Close blade tip clearance with the fan venturis assure smooth, quiet operation. All air-cooled condensers are formed of 3/8 inches [9.5mm] 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 650 psig [44.8 bar]. A separate subcooling circuit is standard on all units to maximize energy efficiency. Fan cycling control is supplied as a standard. This lowers the minimum ambient temperature at which the package equipment will effectively start and operate. For lower ambient requirements than standard, variable speed options are available.
ELECTRICAL / CONTROL
STARTER/CONTROL PANELS The starter/control panels provided on these units are some of the finest available in our industry. Panel enclosures are made of heavy gauge steel. Wires and terminal strips are numbered to simplify installation, maintenance and service. Wires are bundled together with plastic wire ties and all wires are cut to length, without any doubling-back or extraneous wire. The starter-control panel is furnished completely with all starting equipment, safety controls and automatic controls factory mounted, prewired and set. Control voltage is 115 volts on all units. All power components are prewired to a single terminal block sized for copper conductors. Multiple source power connections on remote wired starters are not required. POWER PANEL Factory wire DOL starters for compressor(s), condenser fan motor(s), with indicating lights. Anti-recycling timer will be provided to prevent compressor short cycling. DOL starters are mounted in the units. Reduced voltage starter available. SAFETY CONTROLS 3 Phase Starters With Thermal Overload Protection These devices react quickly to an overload
condition giving prompt protection to each compressor. They are manually reset. High Low Pressure Switch A high-low pressure switch is provided with every refrigerant circuit. The high pressure is sensing condensing pressure, with a manual reset. It opens the compressor run circuit. The low pressure senses evaporating pressure. If there is a danger of fluid freeze-up, depending on the cooling fluid used in the building system, the machine will shut down, with a manual reset required. Freeze Protection Thermostat This thermostat senses outlet chiller fluid (or other liquid being cooled) and will trip if the temperature drops below its pre-set minimum. The control is a manually reset device. Compressor Motor Protection ACDS scroll compressors have a motor protection system consisting of an external electronic control module connected to a chain of embedded PTC (Positive Temperature Coefficient) sensors. The sensors are calibrated for proper motor protection in case of motor overheating caused by overload, low refrigerant flow, incorrect motor rotation, etc. The module has 30 minutes time delay before reset in the event of protector trip. AUTOMATIC CONTROLS Multi-Step Operating Control This device controls the operation of the compressor(s) by sensing the return chilled fluid temperature. On standard multiple compressor units this device is a precise solid-state controller providing smooth and repeatable operation. Anti-Recycle Timer Each compressor has an anti-recycle timer built in the controller, which prevents restart for five minutes after a start. The purpose of this device is to avoid excessive motor winding temperature rise and impose undue wear on starters and is fitted as standard. Fan Pressure Switch (Automatic) This switch is used to stage condenser fans “on” or “off” for maintaining adequate discharge pressures for proper system operation by controlling air flow across the control coil.
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UNIT FEATURES TEMPERATURE CONTROLLER Fluid Temperature Control Control of the fluid temperature is achieved by an intelligent microprocessor thermostat which allows simple user configuration. The controller will arrive on site with the factory settings listed opposite. As all systems are not the same these presets may require changing to suit site conditions. Note that the chilled fluid setpoint should not be set below 4.5°C without the use of Glycol in the fluid system to prevent freezing. Timer Between Compressors The timer does not allow multiple compressors
on a unit to start at the same time. This minimizes electrical demand and wiring cost. UNIT CASING All GI steel panels are powder coated paint which gives excellent finishing, weather and corrosion resistance. Before ED (Electrophoresis Deposition) coating, the part undergoes a complete pre-treatment process which involves degreasing, phosphating and rinsing with deionized fluid. It increases the effect of paint adhesion and rust preventing to obtain high quality paint film. Powder coating is the best painting system which can even coat inaccessible places like the edges, joints or interior surface of hollow sections.
UNIT OPTIONS / ACCESSORIES Options are installed at the factory. Accessories are shipped loose. OPTIONS Shell & Tube Evaporator (ST) Vessels constructed in accordance to ASME CODES Sections VIII Division I for unfired pressure vessels. Low Noise Fan (LNF) For applications where reduced sound levels are required. Provide the quietest operating refrigeration equipment possible. Compressor Acoustic Jacket (LN2) Compressor acoustic jackets have been developed to meet specific extra-low noise requirements. They are made from high performing sound proof material and offer excellent high and low frequency attenuation. Low Ambient Control (LA1) Minimum ambient 30°F [-1.1°C] Units use standard fan cycling in conjunction with coil solenoid control to operate down to 30°F [-1.1°C]. Low Ambient Control (LA2) Minimum Ambient 0°F [-17.8°C] The incorporation of both variable frequency drive for the condenser motor(s) and coil solenoid control will enable the chiller to operate down to 0°F [-17.8°C].
Extra Low Ambient Control (LA3) Minimum Ambient -20°F [-28.9°C] Includes LA2 and EEV (Electronic Expansion Valve(s)) options and requires the use of 50% glycol and at least 50% load available at starting. Heater tape is available as well. Glycol is recommended for additional protection. Desuperheaters (DES) A desuperheater is simply a refrigerant-to-water heat exchanger installed between the compressor and condenser. It is used to reclaim the readily available superheat energy which would otherwise be rejected through the condenser. The desuperheater is a way of obtaining ‘free’ heat from the chiller. Copper Fin Condenser (COP) Copper fin and tube condenser. Poly Fin Condenser (HYD) The material is a polyester coating baked onto the aluminum fin stock prior to final manufacture, rather than material applied to the assembly after formation of the coils. The pre-coated fin material has been tested for salt spray corrosion resistance using ASTM B117 specification. Convenience Outlet (CON) Dual 3-pin ground fault receptacle powered from a dedicated transformer and fused for 15 amps.
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UNIT OPTIONS / ACCESSORIES Hot Gas Bypass (HGBP) To maintain units on-line when the minimum load is below the mechanical unloading range. This minimizes compressor cycling and extends component life, on extra low load conditions. Weather Proof Alarm Bell (WPA) Mounted and wired to indicate a common alarm fault. Gauges (GAG) Includes suction and discharge pressure gauges for all unit models. The microcomputer where fitted also displays discharge and suction pressure. Over and Under Voltage Protection Relay (UVR) Combined relay offering protects against high and low supply voltage conditions as well as single phasing, phase reversal and phase imbalance by interrupting the control circuit. It is an automatic reset device, but the microcomputer can be set up for manual reset to prevent unwanted restarts. Unit Ground Fault Interrupt (GFI) This takes the unit off line if a ground fault is detected. Low Ambient Lock-Out (LAL) Uses an ambient sensor and requires a lock-out set point entered into the microcomputer controller. 3-Phase Voltmeter With Selection Switch (VM3) Single analog voltmeter installed with a 3 phase selector switch for indication, located inside the control panel. 3-Phase Amperage Meter With Selection Switch (AM3) Single analog ammeter with a 3 phase selector switch for indication, located inside the control panel. VISION 2020i (V2C) Proactive full function PC Windows® based microcomputer controller, Vision 2020i is a flexible and advance programmable micro-computer controller designed specifically for the applications and precise control of Dunham-Bush chillers. System Voltage Measurement (SVM) A voltage transducer is added to display the
system voltage on the unit microprocessor. This options is only applicable for units with Vision 2020i controller only. IP55 Control Panel (IP55) A fully enclosed electrical control panel built in accordance with IP55 construction. Remote Fluid Temp Monitoring (RFTR) Unit control is based on leaving fluid temperature with a specific temperature differential (range), so the return fluid temperature is for information only. Demand Limiting (AMPL) Requires a remote analogue input signal that is used to cycle compressors to limit electrical demand. Evaporator Heater (EVH) Heater provide protection from freezing out to -20°F[-28.9°C] ambient. Hydronic Pump Package (HPP) This option adds circulating pumps, complete with insulated expansion tank. Available in a single or dual (duty & standby) evaporator versions, with total dynamic head external to the chiller for 50 feet.
ACCESSORIES
Water Flow Switch (WFS4) Paddle type field adjustable flow switch. Must be tied into the unit safety circuit so that the package will remain off until fluid flow is proved. Helps prevent evaporator freeze up. NEMA 4 enclosure, for use on fluid, ethylene or propylene glycol circuits. For applications where fluid and ambient temperature are at a minimum 62°F [16.7°C]. Rubber-in-shear Isolators (RIS) Designed for ease of installation, these rubber, one piece, molded isolators have slip resistant base plates. Applicable for most installations. Spring Isolators (SPG) Designed for 1" [25.4mm] deflection, these enclosed spring assemblies have a neoprene friction pad on the bottom to help prevent the transmission of noise and a lock bolt for leveling. Neoprene inserts prevent contact between the steel upper and lower housings. Suitable for more critical applications than RIS isolators.
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THERMOSTAT SENSOR
CHILLER EVAPORATOR
THERMOSTATSENSOR
EVAPORATOR BYPASS PORTION OF FLOW
CHILLER EVAPORATOR
APPLICATION DATA EVAPORATOR DESIGN DATA 1. Maximum - Leaving chilled fluid temperature
(LCFT) is 60°F [18°C]. The unit can start and pull down with up to 80°F [27°C] entering-fluid temperature. For sustained operation, it is recommended that the entering fluid temperature not exceed 70°F [21°C].
2. Minimum - LCFT is 40°F [5.5°C] for all models. Medium temperature glycol application selections from 20°F [-6.6°C] to 39°F [3.9°C] are available from the factory.
3. Minimum/Maximum Flow Rates - refer to Physical Data.
4. Pressure Drop Data - refer to pressure drop and glycol correction factors.
5. Wide Range ΔT - Low Flow Applications
a. Multiple smaller chillers may be applied in series, each providing a portion of the design temperature range typical 10°F [5.5°C] each.
b. Chilled fluid may be recirculated through the evaporator as shown below to allow the chiller to operate with acceptable flow rates and temperature ranges (Figure 1A).
Figure 1A The mixed fluid temperature range through the evaporator for units with standard evaporators, should not be less than 7.5°F [4.2°C].
6. Narrow Range ΔT - High Flow Applications
a. For Extra-Narrow Range ΔT applications a partial evaporator bypass piping and valve configuration can be used as shown below.
This permits a higher ΔT and lower ΔP (pressure drop) through the evaporator (Figure 1B).
Figure 1B The fluid mixes after the evaporator.
Minimum Chilled Fluid Loop Volume
ModelACDS
Air Conditioning Applications Process Applications
USgal Liters USgal Liters USgal Liters
010 30 114 60 227 to 108 409
020 60 227 120 454 to 216 818
030 75 284 150 568 to 270 1022
040 120 454 240 908 to 432 1635
050 150 568 300 1136 to 540 2044
060 180 681 360 1363 to 648 2453
065 195 738 390 1476 to 702 2657
070 210 795 420 1590 to 756 2862
080 225 852 450 1703 to 810 3066
095 270 1022 540 2044 to 972 3679
*Values calculated for AHRI Conditions of Service (C.O.S.) Type of Application USgal/TR l/kW Normal Air Conditioning 3 3.25 Process Cooling 6 - 10 6.5 - 10.8
USgal =USgal/TR x AHRI Capacity in TR Liters =l/kW x AHRI capacity in kW
For applications with other than AHRI C.O.S. calculate the system loop volume based on the adjusted or corrected unit capacity. Tanks for System Volume Enhancement It may be necessary to install a tank in the system to provide sufficient system fluid volume, as shown below. The tank should be baffled and piped for proper fluid mixing to prevent stratification. Figure 2A
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APPLICATION DATA Figure 2B Single Loop System with Storage
Tank to Increase Loop Volume Figure 2C Primary and Secondary Loop
Systems are normally used where the secondary system has variable flow and/or multiple loads. See example below.
MULTIPLE CHILLERS PER CHILLED WATER SYSTEM
1. Where the load is greater than available from one ACDS, where standby capacity is required or the load profile dictates, multiple chillers may be piped in parallel. Units of equal size help to ensure fluid flow balance, but balancing valves ensure balanced flows even with dissimilar sized chillers. Temperature controller sensors may or may not need to be moved to the common fluid piping depending on the specific application.
2. Parallel Chiller Applications (Figure 3A).Both units operate simultaneously modulating with load variations. Each unit operates independently sensing its own leaving fluid temperature. The set point of each thermostat is set to maintain the desired loading scheme.
Figure 3A
3. Series Chiller Applications (Figure 3B) Where a large temperature range is required (over 25 °F [13.9 °C]),the chiller may be piped in series. In this case the units are controlled independently. The load is progressive by temperature so the chiller selections are critical.
Figure 3B
Oversizing Chillers Oversizing of chillers more than 5-10% is not recommended. Oversizing causes energy inefficiency and shortened compressor life due to excessive compressor cycling. Future load requirements may result in temporary oversizing of equipment which will require careful unit selection. It may be better to properly size for the initial load and add another unit later for future increase. The use of multiple units is recommended where operation at minimum load for prolong periods is expected and goal control required. Fully loaded equipment operates better and more efficiently than large equipment running at or near minimum capacity. Hot gas bypass should not be a means to allow oversizing of chillers. Hot gas bypass should only be used where the equipment is sized properly for full load but the minimum load expected is lower than can be achieved by mechanical unloading is less than the minimum unloading step available.
Sound and Vibration The compressors in ACDS units are resiliently, mounted to reduce the transmission of any noise and vibration to the frame. The compressors are not mounted on springs because extra movement may cause line breakage and refrigerant leaks. Unit isolation helps prevent any remaining sound or vibration from entering the building structure, piping or electrical service.
Water (Fluid) Strainers It is recommended that 40-mesh strainers be installed in the fluid piping as close to unit evaporator as possible.
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SELECTION PROCEDURE Design Requirements The following design requirements must be known in order to select a packaged chiller. *1.) Required cooling capacity in TR [kW]. 2.) Evaporator outlet fluid temperature °F [°C]. *3.) USgpm of chilled fluid to be circulated. *4.) Chilled fluid cooling range (fluid in °F[°C]- fluid
outlet °F[°C]) 5.) Design ambient temperature °F[°C]. 6.) Electrical power characteristics. 7.) Special codes (local, state or national codes)
with which unit must comply *Any 2 out of 3 must be known
EXAMPLE Select an air cooled packaged chiller for the following conditions: 60 TR at 54°F [12.22°C] entering, 44°F [6.67°C] leaving chilled fluid. R410A refrigerant design ambient is 95°F [35°C]. Minimum operating ambient is +0°F [-17.78°C]. Altitude is 2000 feet [609.6m]. Chiller fouling factor 0.0005. Electrical characteristics 400V/3/50Hz with single power connection. Step 1- Unit Selection For 2000 feet [609.6m] elevation divide the specified tonnage by the capacity correction factor from Table 4. 60 TR = 60.6 TR 0.99 For 0.0005 fouling factor divide the required tonnage at 2000 feet [609.6m] by the fouling correction factor from Table 5. 60.6 TR = 62.0 TR 0.978 Entering the capacity data for R410A we see that an ACDS 60 unit for water at sea level has a capacity of 58.1 TR, drawing 70.8 compressor kW. The kW correction factors from Table 4 and 5 will be applied to the compressor kW below. For the conditions specified, the unit will do:
Capacity = 58.1 x 0.99 x 0.978 = 56.3 TR Compressor kW = 70.8 x 1.01 x 0.99 = 70.8 kW Step 2- Evaporator USgpm and Pressure
Drop USgpm = Specified TR x 24 = 60 x 24 Cooling Range 10 = 144 USgpm [32.69 m³/hr] Step 3- Chilled Fluid Pump Selection To the pressure drop calculated in Step 2, add the pressure drop through the chilled fluid loop piping, valves and equipment. This will be the foundation of your pump selection criteria.
Glycol Freeze Protection If the chiller or fluid piping is to be exposed to temperatures below the freezing point of fluid, glycol protection is recommended. The recommended protection is 10°F [5.6°C] below the minimum ambient temperature. Use only glycol solutions approved for 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 being used, the vessels and the piping should be drained. The freeze protection level should be 10°F [5.6°C] lower than the leaving brine temperature. The use of glycol causes a performance derate as shown in Table 2 for ethylene glycol and Table 3 for propylene glycol and needs to be included in the unit selection procedure. Table 2 : Ethylene Glycol
% E. G.By
Weight
Freeze Point C1 Capacity Factor
K1 kW
Rate
G1 Flow
Factor
P1 P.D.
Factor °F °C
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 -10.0 -23.3 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 3 : Propylene Glycol
% P. G.By
Weight
Freeze Point C2 Capacity Factor
K2 kW
Rate
G2 Flow
Factor
P2 P.D.
Factor °F °C
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
Table 4 : Correction Factor - Elevation
Elevation above Sea Level Capacity Correction
Factor
kW Correction
Factor Feet [m] Meters Factor
0 0 1.00 1.00 2000 [609.6m] 600 0.99 1.01 4000 [1219.2m] 1200 0.98 1.02 6000 [1828.5m] 1800 0.97 1.03
Table 5 : Correction Factor - FF
Fouling Factor Capacity Correction
Factor
kW Correction
Factor Hr.ft².°F/BTU m².°C/kW
0.0001 0.018 1.000 1.000 0.00025 0.044 0.993 0.997 0.00050 0.088 0.978 0.990 0.00100 0.176 0.951 0.978
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PHYSICAL SPECIFICATIONS
Model ACDS 010 020 030 040 050 060 065 070 080 095
Unit Nominal Capacity TR[kW] 10 [35]
20 [70]
25 [88]
40 [141]
50 [176]
60 [211]
66 [233]
70 [246]
75 [264]
90 [316]
Unit Nominal Power Input kW 11.7 23.1 32.4 48.3 65.0 76.6 75.6 86.2 97.8 116.6
COMPRESSOR
RPM 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900
Min. % Unit Capacity 50% 50% 50% 25% 25% 25% 25% 25% 25% 25%
No. Of Refrigerant Circuit 1 1 1 2 2 2 2 2 2 2
EVAPORATOR
Water Connector inches[mm] 1 1/4[32] 1 1/4[32] 1 1/4[32] 3[76.2] 3[76.2] 3[76.2] 3[76.2] 3[76.2] 3[76.2] 3[76.2]
Nominal Water Flow / Pressure Drop USgpm/ft.wg[m³/hr / kPa]
22.3/11.1 [5.1/33.2]
44.1/10.3[10.0/30.8]
60.2/12.6[13.7/37.7]
92.3/14.5[21.0/43.4]
121.9/12.4[27.6/37.1]
139.4/9.5[31.6/28.3]
159.0/10.0 [36.1/29.9]
163.0/10.8 [37.0/32.3]
181.0/10.4[41.1/31.1]
215.7/12.9[49.0/38.6]
CONDENSER
Coil Rows Deep/ Total Face Area ft²[m²]
3/ 20.0[1.9]
3/ 40.6[3.8]
4/ 47.1[4.4]
3/ 94.1[8.7]
4/ 94.1[8.7]
4/ 94.1[8.7]
4/ 133.0[12.4]
4/ 133.0[12.4]
4/ 133.0[12.4]
4/ 177.3[16.8]
Total Air Flow cfm[m³/hr] 9,850 [16,737]
20,150 [34,239]
20,000 [33,984]
42,200 [71,706]
40,000 [67,968]
39,200 [66,609]
58,902 [100,086]
58,902 [100,086]
57,942 [98,455]
77,300 [131,348]
No Of Fan 1 2 2 4 4 4 6 6 6 8
Fan Diameter inches[mm] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800] 31.5[800]
Fan Motor HP (Qty) 1.5 (1) 1.5 (2) 1.5 (2) 1.5 (4) 1.5 (4) 1.5 (4) 1.5 (6) 1.5 (6) 1.5 (6) 1.5 (8)
Fan Motor kW Input (Qty) 1.45 (1) 1.45 (2) 1.45 (2) 1.45 (4) 1.45 (4) 1.45 (4) 1.45 (6) 1.45 (6) 1.45 (6) 1.45 (8)
Fan FLA , Amp (Qty) 3.2 (1) 3.2 (2) 3.2 (2) 3.2 (4) 3.2 (4) 3.2 (4) 3.2 (6) 3.2 (6) 3.2 (6) 3.2 (8)
Min. Operating Ambient °F[°C] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2] 45[7.2]
ELECTRICAL
Nominal Voltage 400/3/50 4000/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50
Unit RLA, AMPS 24.8 42.7 61.8 88.0 123.6 139.6 146.0 161.4 182.8 198.8
Unit Max. Inrush, AMPS 114 182 246 227 308 323 328 381 402 476
GENERAL
Unit Length inches[mm] 50 1/4 [1276]
90 [2286]
90 [2286]
112 1/4[2851]
112 1/4[2851]
112 1/4[2851]
147 1/2 [3747]
147 1/2 [3747]
147 1/2[3747]
189 [4801]
Unit Width inches[mm] 43 [1092]
48 1/2 [1232]
52 [1321]
88 [2235]
88 [2235]
88 [2235]
88 [2235]
88 [2235]
88 [2235]
88 [2235]
Unit Height inches[mm] 53 1/4 [1353]
70 [1778]
84 3/4 [2154]
82 1/2 [2096]
82 1/2 [2096]
82 1/2 [2096]
88 1/2 [2248]
88 1/2 [2248]
88 1/2 [2248]
88 1/2 [2248]
Shipping Weight lbs[kg] 936 [424]
1645 [746]
2398 [1088]
3048 [1383]
3640 [1651]
3769 [1710]
4667 [2117]
5118 [2322]
5602 [2541]
6741 [3058]
Operating Weight lbs[kg] 941 [426]
1658 [752]
2413 [1095]
3074 [1394]
3675 [1667]
3809 [1728]
4720 [2141]
5166 [2342]
5656 [2566]
6798 [3084]
Operating Charge R410A lbs[kg] 26[12] 51[23] 77[35] 101[46] 128[58] 152[69] 168[76] 179[81] 203[92] 229[104]
Note: Nominal data is based on evaporator LWT 44°F and condenser ambient 95°F, actual capacity depends on the specified operating conditions.
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PERFORMANCE DATA
Model ACDS LWT (°F)
Ambient Temperature (°F)
85 95 105 115
TR kWI TR kWI TR kWI TR kWI
010
40 9.3 9.10 8.6 10.12 7.9 11.18 7.1 12.38 42 9.6 9.15 8.9 10.15 8.2 11.25 7.4 12.43 44 10.0 9.20 9.3 10.21 8.6 11.30 7.7 12.50 46 10.3 9.24 9.6 10.27 8.9 11.37 8.0 12.56 48 10.7 9.30 9.9 10.32 9.2 11.43 8.3 12.63 50 11.0 9.34 10.3 10.37 9.5 11.48 8.6 12.70
020
40 18.3 17.78 17.1 19.84 15.7 22.21 14.3 24.94 42 19.0 17.93 17.7 20.00 16.3 22.39 14.8 25.13 44 19.6 18.10 18.3 20.19 16.9 22.56 15.3 25.30 46 20.3 18.25 19.0 20.35 17.5 22.74 15.9 25.49 48 21.1 18.42 19.6 20.52 18.1 22.90 16.4 25.69 50 21.8 18.59 20.3 20.68 18.7 23.08 17.0 25.89
030
40 25.3 25.79 23.4 28.91 21.5 32.43 19.5 36.41 42 26.1 26.04 24.3 29.16 22.3 32.67 20.2 36.72 44 27.1 26.27 25.1 29.52 23.1 32.95 20.9 36.99 46 28.0 26.54 26.0 29.67 23.9 33.23 21.6 37.26 48 28.9 26.77 26.9 29.93 24.7 33.51 22.4 37.57 50 29.9 27.04 27.8 30.18 25.5 33.76 23.1 37.89
040
40 38.6 37.36 35.8 41.84 32.9 47.04 29.8 53.06 42 40.0 37.65 37.1 42.16 34.1 47.39 30.9 53.37 44 41.4 38.01 38.4 42.54 35.3 47.73 31.9 53.76 46 42.8 38.37 39.8 42.87 36.6 48.09 33.1 54.14 48 44.3 38.72 41.2 43.25 37.8 48.44 34.2 54.53 50 45.8 39.09 42.6 43.65 39.1 48.81 35.4 54.91
050
40 50.9 51.76 47.4 57.97 43.5 65.02 39.4 73.00 42 52.8 52.22 49.1 58.47 45.1 65.50 40.8 73.53 44 54.7 52.68 50.8 59.18 46.6 66.05 42.2 74.20 46 56.5 53.21 52.5 59.49 48.2 66.70 43.7 74.69 48 58.5 53.68 54.3 60.00 49.9 67.10 45.2 75.32 50 60.4 54.22 56.1 60.59 51.5 67.75 46.7 75.95
060
40 58.2 61.82 53.9 69.26 49.4 77.52 44.7 86.99 42 60.2 62.39 55.8 69.87 51.1 78.21 46.2 87.65 44 62.2 63.03 58.1 70.84 52.9 78.90 47.8 88.42 46 64.3 63.77 59.5 71.30 54.6 79.69 49.4 89.19 48 66.4 64.43 61.5 71.94 56.4 80.40 51.1 89.97 50 68.5 65.11 63.5 72.68 58.2 81.21 52.7 90.75
065
40 65.4 58.63 61.4 65.32 55.9 73.01 50.7 81.62 42 67.7 59.20 64.0 65.96 57.9 73.53 52.5 82.29 44 70.0 59.80 66.2 66.90 59.9 74.23 54.4 82.96 46 72.4 60.38 68.1 67.17 62.0 74.85 56.3 83.65 48 74.9 61.00 70.3 67.82 64.1 75.48 58.2 84.33 50 77.4 61.61 72.7 68.49 66.2 76.16 60.1 85.12
070
40 67.1 67.92 63.0 75.67 57.3 84.58 52.0 94.55 42 69.4 68.58 65.2 76.41 59.4 85.18 53.9 95.33 44 71.9 69.27 67.9 77.50 61.4 85.99 55.8 96.11 46 74.3 69.95 69.8 77.81 63.6 86.71 57.7 96.90 48 76.8 70.66 72.2 78.57 65.7 87.44 59.7 97.69 50 79.4 71.37 74.5 79.34 67.9 88.23 61.7 98.61
080
40 75.5 75.90 70.2 86.68 64.7 93.68 58.8 104.50 42 78.2 76.61 72.5 87.56 67.0 94.51 60.9 105.40 44 80.9 77.41 75.3 89.14 69.3 95.36 63.0 106.31 46 83.7 78.23 77.7 89.36 71.9 96.21 65.2 107.24 48 86.6 79.06 80.3 90.28 74.2 97.08 67.5 108.18 50 89.5 79.91 82.9 91.31 76.6 98.08 69.8 109.14
095
40 89.7 92.79 83.5 103.29 77.0 115.06 70.0 128.42 42 92.9 93.54 86.5 104.11 79.7 115.97 72.5 129.29 44 96.2 94.42 89.9 104.97 82.6 116.88 75.2 130.31 46 99.6 95.30 92.7 105.90 85.5 117.79 77.8 131.33 48 103.0 96.21 95.9 106.86 88.4 118.85 80.6 132.35 50 106.6 97.13 99.3 107.72 91.5 119.78 83.3 133.53
Legend LWT : Leaving Chilled Water Temperature kWi : Compressor Power Input In kW TR : Cooling Capacity In TR. Notes: 1.) Rating based on 10°F water range in evaporator and 0.0001 hr.ft.°F/BTU fouling factor.
2.) Interpolation between ratings is permissible but extrapolation is NOT.
- 13 -
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
LIM
ETER
S.2.
ALL
OW
60i
n [1
524m
m]
CLEA
RAN
CE A
T CO
NTR
OL
PAN
EL E
ND
OF
UN
IT F
OR
SERV
ICE.
3. U
SE M
INIM
UM
36i
n [9
14m
m]
FLEX
IBLE
CO
ND
UIT
TO
CO
NTR
OL
BOX
TO I
SOLA
TE U
NIT
.4.
WAT
ER P
IPIN
G T
O B
E SU
PPO
RTED
TO
MIN
IMIZ
E LO
AD O
N U
NIT
.5.
TO
TAL
UN
IT H
EIG
HT
FOR
LOW
NO
ISE
FAN
(LN
) O
PTIO
N 5
6 3/
4 [1
444]
.
TOP
VIEW
REA
R V
IEW
LEFT
VIE
WFR
ON
T VI
EW
AIR
OU
T
AIR I
N
AIR I
N
AIR
IN
43
[109
2]
50 1
/4 [
1276
]
8 [2
03]
8 [2
03]
WAT
ER O
UT
CON
NEC
TIO
NØ
1-1/
4 [3
2] V
ICTA
ULI
C4
NO
S O
F Ø
2 [5
0.8]
LIFT
ING
HO
LES
POW
EREN
TRY
CON
TRO
L BO
XAC
CESS
WAT
ER I
N C
ON
NEC
TIO
NØ
1-1/
4 [3
2] V
ICTA
ULI
C
60
[152
4]
48
[121
9]
53
[134
6] 4
8 [1
219]
24
[609
]
DO
OR
SWIN
G
6 [
152]
[APP
RO
X.]
18 1
/2 [
470]
[APP
RO
X.]
53
1/4
[135
2]56
3/4
[14
44]
LN
11
1/4
[286
] [A
PPRO
X.]
46 3
/4 [
1187
]
CLEA
RAN
CE, SE
RVI
CE A
ND
ACCE
SS R
EQU
IREM
ENTS
.(N
OT
WAL
L O
R W
ELL
DIM
ENSI
ON
S)
DIMENSIONAL DATA ACDS 010
- 14 -
WAT
ERCO
NN
ECTI
ON
OU
TØ
1-1/
4 [3
2]VI
CTAU
LIC
WAT
ERCO
NN
ECTI
ON
IN
Ø1-
1/4
[32]
VICT
AULI
C
11
[279
]
6 [
152]
19
[483
]
SEE
NO
TE 5
DO
OR S
WIN
G
70
[177
8] 7
3 [1
854]
LN
CLEA
RAN
CE, SE
RVI
CE A
ND
ACCE
SS R
EQU
IREM
ENTS
.(N
OT
WAL
L O
R W
ELL
DIM
ENSI
ON
S)
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
LIM
ETER
S.2.
ALL
OW
60i
n [1
524m
m]
CLEA
RAN
CE A
T CO
NTR
OL
PAN
EL E
ND
OF
UN
IT
FO
R SE
RVI
CE.
3. U
SE M
INIM
UM
36i
n [9
14m
m]
FLEX
IBLE
CO
ND
UIT
TO
CO
NTR
OL
BOX
TO
ISO
LATE
UN
IT.
4. W
ATER
PIP
ING
TO
BE
SUPP
OR
TED
TO
MIN
IMIZ
E LO
AD O
N U
NIT
.5.
TO
TAL
UN
IT H
EIG
HT
FOR
LOW
NO
ISE
FAN
(LN
) O
PTIO
N 7
3 [1
854]
.
46
[116
8]
92
3/4
[235
6]
48 [1219]
POW
EREN
TRY
CON
TRO
LBO
X AC
CESS
AIR O
UT
AIR I
N
AIR
IN
60 [1524]
24 [
610]
4 N
OS
OF
Ø3/
4 [
19.1
]M
OU
NTI
NG
HO
LES
4 N
OS
OF
Ø2
[50
.8]
LIFT
ING
HO
LES.
48
1/2
[123
2]
64 3/4 [1645]
14 1
/4 [
362]
64
[162
6]11
3/4
[29
8]
FRO
NT
VIEW
LEFT
VIE
WR
EAR
VIEW
TOP
VIEW
90
[228
6]
DIMENSIONAL DATA ACDS 020
- 15 -
84 3/4 [2153]
48 [1219]
SEE
NO
TE 5
60 1
/2 [
1537
][A
PPRO
X.]
88 1
/4 [
2242
] LN
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
LIM
ETER
S.2.
ALL
OW
60i
n [1
524m
m]
CLEA
RAN
CE A
T CO
NTR
OL
PAN
EL E
ND
OF
UN
IT
FO
R SE
RVIC
E.3.
USE
MIN
IMU
M 3
6in
[914
mm
] FL
EXIB
LE C
ON
DU
IT T
O C
ON
TRO
L BO
X TO
I
SOLA
TE U
NIT
.4.
WAT
ER P
IPIN
G T
O B
E SU
PPO
RTED
TO
MIN
IMIZ
E LO
AD O
N U
NIT
.5.
TO
TAL
UN
IT H
EIG
HT
FOR
LOW
NO
ISE
FAN
(LN
) O
PTIO
N
88 1
/4 [
2242
].
CLEA
RAN
CE, S
ERVI
CE A
ND
ACCE
SS R
EQU
IREM
ENTS
.(N
OT
WAL
L O
R W
ELL
DIM
ENSI
ON
S)
49 3
/4 [
1264
]
92 3
/4 [
2356
]
POW
EREN
TRY
DO
OR
SW
ING
CON
TRO
LBO
X AC
CESS
WAT
ER O
UT
CON
NEC
TIO
NØ
1-1/
4 [
32]
VICT
AULI
C4
NO
S O
F Ø
2 [
50.8
]LI
FTIN
G H
OLE
S
4 N
OS
OF
Ø3/
4 [
19.1
]M
OU
NTI
NG
HO
LES
WAT
ER I
N C
ON
NEC
TIO
NØ
1-1/
4 [
32]
VICT
AULI
C
60 [1524]
24 [
610]
AIR
OU
T
AIR
IN
AIR
IN
FRO
NT
VIEW
LEFT
VIE
WREA
R V
IEW
TOP
VIEW
14 1
/4 [
362]
64 [
1626
]11
3/4
[29
8]
90 [
2286
]
7 1/2 [191][APPROX.]
18 1/2 [470][APPROX.]
79 3/4 [2026]
52 [
1321
]
DIMENSIONAL DATA ACDS 030
- 16 -
50
1/4
[127
5]
9 [228]
CLEA
RAN
CE,
SERVI
CE A
ND
ACCE
SS R
EQU
IREM
ENTS
.(N
OT
WAL
L O
R W
ELL
DIM
ENSI
ON
S)
WAT
ER O
UT
CON
NEC
TIO
NØ
3 [7
6.2]
VICT
AULI
C
WAT
ER I
NCO
NN
ECTI
ON
Ø3
[76.
2]VI
CTAU
LIC
SEE
NO
TE 5
112
1/4
[28
51]
115
[292
1]88
[22
35]
84
3/4
[215
3]
82 1/2 [2096]
86 [2184] LN
22 [559] [APPROX]
AA
POW
ER E
NTR
Y(B
OTT
OM
)
4 N
OS
OF
Ø2
7/8
[73.
0]LI
FTIN
G H
OLE
S4
NO
S O
F Ø
3/4
[19.
1]M
OU
NTI
NG
HO
LES
DO
OR
SWIN
G
CON
TRO
L BO
X AC
CESS
60
[152
4]
48 [1219]
24
[610
]
SYST
EM 1
SYST
EM 2
SYST
EM 2
SYST
EM 1
TOP
VIEW
FRO
NT
VIEW
LEFT
VIE
WREA
R VI
EW
AIR I
N
AIR I
N
AIR
OU
T
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
IMET
ERS.
2. A
LLO
W 6
0 [
1524
] C
LEAR
ANCE
AT
CON
TRO
L PA
NEL
EN
D O
F U
NIT
FO
R S
ERVI
CES.
3. U
SE M
INIM
UM
36
[ 91
4 ]
FLEX
IBLE
CO
ND
UIT
TO
CO
NTR
OL
BOX
TO I
SOLA
TOR
UN
IT.
4. W
ATER
PIP
ING
TO
BE
SUPP
ORT
ED T
O M
INIM
IZE
LOAD
ON
UN
IT.
5. T
OTA
L U
NIT
HEI
GH
T FO
R LO
W N
OIS
E FA
N (
LN)
OPT
ION
86
[218
4MM
]
DIMENSIONAL DATA ACDS 040, 050, 060
- 17 -
92 [2337] LN
88 1/2 [2248]
SEE
NO
TE 5
44 [
1118
] [A
PPRO
X.]
8 [2
00]
[APP
RO
X.]
23
1/4
[591
][A
PPRO
X.]
CLEA
RAN
CE, SE
RVI
CE A
ND
ACCE
SS R
EQU
IREM
ENTS
.(N
OT
WAL
L O
R W
ELL
DIM
ENSI
ON
S)
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
LIM
ETER
S.2.
ALL
OW
60i
n [1
524m
m]
CLEA
RAN
CE A
T CO
NTR
OL
PAN
EL E
ND
OF
UN
IT F
OR
SER
VICE
.3.
USE
MIN
IMU
M 3
6in
[914
mm
] FL
EXIB
LE C
ON
DU
IT T
O C
ON
TRO
L BO
X TO
ISO
LATE
UN
IT.
4. W
ATER
PIP
ING
TO
BE
SUPP
ORTE
D T
O M
INIM
IZE
LOAD
ON
UN
IT.
5. T
OTA
L U
NIT
HEI
GH
T FO
R LO
W N
OIS
E FA
N (
LN)
OPT
ION
92
[233
7].
86 [
2184
]48 [1219]
48 [1219]
24
[610
]PO
WER
EN
TRY
(BO
TTO
M)
6 N
OS
OF
Ø2
7/8
[73.
0]LI
FTIN
G H
OLE
S
CON
TRO
L BO
X AC
CESS
POW
ER E
NTR
Y(B
OTT
OM
)
6 N
OS
OF
Ø3/
4 [1
9.1]
MO
UN
TIN
G H
OLE
S
147
1/2
[374
7]
12 [
305]
57 3
/4 [
1467
] 6
6 [1
676]
11
3/4
[298
]
TOP
VIEW
FRO
NT
VIEW
LEFT
VIE
WREA
R VI
EW
WAT
ER O
UT
CON
NEC
TIO
NØ
3 [7
6.2]
VICT
AULI
C
WAT
ER I
NCO
NN
ECTI
ON
Ø3
[76.
2]VI
CTAU
LIC
88
[223
5]
AIR O
UT
DO
OR
SWIN
G
AIR I
N
AIR I
N
60
[152
4]
DIMENSIONAL DATA ACDS 065, 070, 080
- 18 -
AIR I
N
AIR
IN
SEE
NO
TE 5
44
[111
8][A
PPR
OX.
]
CON
TRO
L BO
XAC
CESS
POW
EREN
TRY
(BO
TTO
M)
6 N
OS
OF
Ø2
7/8
[73.
0]LI
FTIN
G H
OLE
S6
NO
S O
F Ø
3/4
[19.
1]M
OU
NTI
NG
HO
LES
12 [
305]
72
3/4
[184
8] 8
4 1/
4 [2
140]
20 [
508]
189
[480
1]
88
1/2
[224
8]92
[23
37]
LN
WAT
ER O
UT
CON
NEC
TIO
NØ
3 [7
6.2]
VICT
AULI
C
WAT
ER I
NCO
NN
ECTI
ON
Ø3
[76.
2]VI
CTAU
LIC
88
[223
5] 8
6 [2
184]
23
1/4
[591
][A
PPRO
X.]
7 3
/4 [
197]
[APP
RO
X.]
48
[121
9]
24
[610
]
48
[121
9] 6
0 [1
524]
POW
ER E
NTR
Y(B
OTT
OM
)
DO
OR
SWIN
G
CLEA
RAN
CE, SE
RVIC
E AN
DAC
CESS
REQ
UIR
EMEN
TS.
(NO
T W
ALL
OR
WEL
L D
IMEN
SIO
NS)
NO
TES:
1. A
LL D
IMEN
SIO
NS
ARE
IN I
NCH
ES A
ND
MIL
LIM
ETER
S.2.
ALL
OW
60i
n [1
524m
m]
CLEA
RAN
CE A
T CO
NTR
OL
PAN
EL E
ND
OF
UN
IT F
OR
SERV
ICE.
3. U
SE M
INIM
UM
36i
n [9
14m
m]
FLEX
IBLE
CO
ND
UIT
TO
CO
NTR
OL
BOX
TO I
SOLA
TE U
NIT
.4.
WAT
ER P
IPIN
G T
O B
E SU
PPO
RTED
TO
MIN
IMIZ
E LO
AD O
N U
NIT
.5.
TO
TAL
UN
IT H
EIG
HT
FOR
LO
W N
OIS
E FA
N (
LN)
OPT
ION
92
[233
7].
TOP
VIEW
FRO
NT
VIEW
LEFT
VIE
WR
EAR
VIEW
AIR O
UT
AIR I
N
AIR
IN
DIMENSIONAL DATA ACDS 095
- 19 -
FLOOR LOADING DIAGRAM
ACDS 010 ACDS 020, 030
ACDS 040, 050, 060 ACDS 065, 070, 080, 095
POINT LOAD LOCATION
Model ACDS
Dimensions – inches [mm]
A B C D E
010 40 3/4 [1035] 8 [203] 34 1/4 [870] 8 [203] -
020 46 [1168] 14 1/4 [362] 64 [1626] 11 3/4 [298] -
030 49 3/4 [1264] 14 1/4 [362] 64 [1626] 11 3/4 [298] -
040 84 3/4 [2153] 15 [381] 82 1/4 [2089] 15 (381) -
050 84 3/4 [2153] 13 [330] 86 1/4 [2191] 13 [330] -
060 84 3/4 [2153] 13 [330] 86 1/4 [2191] 13 [330] -
065 86 [2184] 12 [305] 57 3/4 [1467] 66 [1676] 11 3/4 [298]
070 86 [2184] 12 [305] 57 3/4 [1467] 66 [1676] 11 3/4 [298]
080 86 [2184] 12 [305] 57 3/4 [1467] 66 [1676] 11 3/4 [298]
095 86 [2184] 12 [305] 72 3/4 [1848] 84 1/4 [2140] 20 [508]
POINT LOAD DATA
Model ACDS
Loads - lbs [kg] Total Operating Weight lbs [kg] P1 P2 P3 P4 P5 P6
010 192 [87] 243 [110] 270 [122] 236 [107] - - 941 [426]
020 322 [146] 395 [179] 524 [238] 417 [189] - - 1658 [752]
030 482 [219] 604 [274] 740 [336] 587 [266] - - 2413 [1095]
040 751 [341] 750 [340] 781 [354] 792 [359] - - 3074 [1394]
050 911 [413] 877 [398] 919 [417] 968 [439] - - 3675 [1667]
060 941 [427] 900 [408] 954 [433] 1014 [460] - - 3809 [1728]
065 835 [379] 825 [374] 815 [370] 815 [370] 825 [374] 835 [379] 4950 [2246]
070 874 [396] 861 [390] 848 [385] 848 [385] 861 [390] 874 [396] 5166 [2342]
080 970 [440] 943 [428] 915 [415] 915 [415] 943 [428] 970 [440] 5656 [2566]
095 1159 [526] 1133 [514] 1107 [502] 1107 [502] 1133 [514] 1159 [526] 6798 [3084]
- 20 -
CONDENSER FAN FAN POSITION NUMBER & CYCLING SEQUENCE
ACDS 010
ACDS 020, 030
ACDS 040, 050, 060
System 1 System 2 Base Fans 1 Base Fans 4 2
Base Fans 1 Stage 2 2 Stage 2 3 1
ACDS 065, 070, 080
ACDS 095
System 1 System 2 System 1 System 2 Base Fans 6 5 Base Fans 8 7
Stage 2 4 3 Stage 2 6 5 Stage 3 2 1 Stage 3 2, 4 1, 3
∗ Coil Header
SOUND PRESSURE DATA STANDARD UNIT
Model Octave Band (Hz) Total
dB (A) 63 125 250 500 1K 2K 4K 8K
ACDS 010 26 31 41 45 46 44 41 36 51 ACDS 020 29 34 44 52 52 52 48 41 58 ACDS 030 29 34 43 49 49 49 44 39 55 ACDS 040 31 37 46 51 53 54 48 42 58 ACDS 050 31 37 46 52 52 52 47 42 58 ACDS 060 31 37 46 52 52 53 48 42 58 ACDS 065 33 38 48 53 54 53 49 44 59 ACDS 070 33 38 48 53 54 53 49 44 59 ACDS 080 33 38 48 53 54 53 49 44 59 ACDS 095 34 39 49 54 55 54 50 44 60
Note: Unit Sound Pressure Level (Lp) @ 30 FT [9m] (free field), ± 2 dB tolerance.
ELECTRICAL DATA
Model Power Supply Standard Unit Each Compressor Condenser Fan Motors
V-Ph-Hz RLA MCA MFS Max. Inrush Qty RLA LRA Qty HP FLA/Mtr
ACDS 010 400/3/50 24.8 28 32 114 2 10.8 100 1 1.5 3.2
ACDS 020 400/3/50 42.7 47 63 182 11
17.618.7
147158 2 1.5 3.2
ACDS 030 400/3/50 61.8 68 80 246 11
24.630.8
170215 2 1.5 3.2
ACDS 040 400/3/50 88.0 93 100 227 4 18.8 158 4 1.5 3.2
ACDS 050 400/3/50 123.6 131 150 308 22
24.630.8
170215 4 1.5 3.2
ACDS 060 400/3/50 139.6 148 175 323 4 31.7 215 4 1.5 3.2 ACDS 065 400/3/50 146.0 154 175 328 4 31.7 215 6 1.5 3.2
ACDS 070 400/3/50 161.4 172 200 381 22
30.740.4
215260 6 1.5 3.2
ACDS 080 400/3/50 182.8 193 225 402 4 40.9 260 6 1.5 3.2 ACDS 095 400/3/50 198.8 210 250 476 4 43.3 320 8 1.5 3.2
Note: MCA - Minimum Circuit Amps MFS - Maximum Fuse Size RLA - Running Load Amps FLA – Full Load Amps LRA - Locked Rotor Amps
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TYPICAL WIRING DIAGRAM ACDS (With IR33)
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GUIDE SPECIFICATIONS 1.0 GENERAL
1.1 Work Included Provide complete electrically or optional microcomputer controlled air cooled chiller utilizing tandem scroll compressor sets suitable for outdoor installation. Contractor will furnish and install chillers as shown and scheduled on the drawings. Units will be installed in accordance with this specification.
1.2 Quality Assurance A. Unit will be rated in accordance with AHRI
Standard 550/590-2003. B. The unit will be fully tested at the factory.
1.3 Design Base A. The construction drawings indicate a system
based on a selected manufacturer of equipment and the design data available to the Engineer during construction document preparation. Electrical services, size, configuration and space allocations are consistent with that manufacturer’s recommendations and requirements.
B. Other listed or approved manufacturers are encouraged to provide equipment on this project; however, it will be the Contractor and/or Supplier’s responsibility to assure the equipment is consistent with the design base. No compensation will be approved for revisions required by the design base or other manufacturers for any different services, space, clearances, etc.
1.4 Delivery And Handling A. The unit will be delivered to the job site
completely assembled and charged with R410A refrigerant and oil by the manufacturer.
B. Comply with the manufacturer’s instruction for rigging and handling.
1.5 Maintenance Maintenance of the chillers will be the responsibility of the owner and performed in accordance with the manufacturer’s instructions.
2.0 PRODUCTS
2.1 Tandem Scroll Compressor Air Cooled Water Chillers
2.2 Acceptable Manufacturers A. Dunham-Bush B. (Approved equal)
2.3 General A. Furnish and install as shown on the plans,
air cooled tandem scroll compressor water
chillers. Units will be Dunham-Bush Model ACDS or equal.
B. The units are to be completely factory assembled and wired in a single package complete with tandem scroll compressors, evaporator, condenser, starting control with safety and operating controls. The unit is to be given a complete factory operating and control sequence test under load conditions and is to be shipped with full operating charge of R410A and full oil charge.
2.4 Performance The units will be furnished as shown on capacity schedules and drawings.
2.5 Construction The unit will be designed for maximum corrosion protection being of heavy gauge, galvanized steel construction with baked on powder coating.
2.6 Evaporator Evaporator will be direct expansion, brazed plate heat exchanger. Fluid side design working pressure will be minimum 400psig [28bar] and refrigerant side design working pressure will be minimum 450psig [31bar]. Evaporator will be insulated with 3/4 inches [19mm] closed-cell insulation.
2.7 Condenser The condenser coil is to be constructed of copper tubes and die-formed aluminum fins having self-spacing collars. Fins will be mechanically bonded to the tubes. Integral sub-cooling circuits will be incorporated into the coil. Condenser divider baffles will fully separate each condenser fan section to control the airflow to maintain proper head pressure control.
2.8 Fans The fans will be heavy duty, aluminum blade, direct drive propeller type. Motors will be three phase (except for low ambient option lead fan per circuit) with internal overloads and are to be permanently lubricated.
2.9 Compressor A. The compressors will be Tandem Scroll with
suction and discharge manifolded and oil and gas equalization provided. All compressors will be 2900 RPM direct drive with an integral two-pole hermetic squirrel cage motor. A dust-proof terminal box, located in an accessible location on the compressor, will contain all connection terminals.
B. The compressors will be fitted with a crankcase heater, and oil sight glass.
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GUIDE SPECIFICATIONS 2.10 Capacity Control Compressor cycling will be utilized to match the demand requirement of the system. A Proactive controller will cycle compressors in response to leaving fluid temperature and maintain fluid temperature within 3.0°F [1.7°C] of setpoint. This system is to provide precise and stable control of supply fluid temperature over the complete range of operating conditions. It will be capable of a system capacity range from 100% to_____ % at specified conditions without hot gas bypass. 2.11 Refrigerant Circuit A. (Two compressors)(Four compressors) will
be used with a direct expansion evaporator. B. Insulate evaporator and other cold surfaces
as required to prevent condensation at ambient conditions of 75% humidity of 90°F [32°C] wet bulb with no air movement.
C. Each refrigerant circuit will include expansion valve, sight glass, moisture indicator, solenoid valve, replaceable core filter-drier, liquid line shut off valves, and charging.
2.12 Starting Equipment A. Unit mounted contactors with compressor
motor module protection for each compressor.
B. Five (5) minute anti-recycle timer 2.13 Optional Features Certain standard features are not applicable when the features are specified – For assistance in amending the specifications, contact your Dunham-Bush representative. 1. Shell & Tube Evaporator (ST). 2. Low Noise Fan (LNF). 3. Compressor Acoustic Jacket (LN2). 4. Low Ambient Control (LA1) Minimum ambient
30°F [-1.1°C]. 5. Low Ambient Control (LA2) Minimum Ambient
0°F [-17.8°C]. 6. Extra Low Ambient Control (LA3) Minimum
Ambient -20°F [-28.9°C]. 7. Desuperheaters (DES). 8. Copper Fin Condenser (COP). 9. Poly Fin Condenser (HYD). 10. Convenience Outlet (CON). 11. Hot Gas Bypass (HGBP). 12. Weather Proof Alarm Bell (WPA). 13. Gauges (GAG) 14. Over and Under Voltage Protection Relay
(UVR). 15. Unit Ground Fault Interrupt (GFI). 16. Low Ambient Lock-Out (LAL). 17. 3-Phase Voltmeter With Selection Switch
(VM3). 18. 3-Phase Amperage Meter With Selection
Switch (AM3).
19. VISION 2020i (V2C). 20. System Voltage Measurement (SVM). 21. IP55 Control Panel (IP55). 22. Remote Fluid Temp Monitoring (RFTR). 23. Demand Limiting (AMPL) 24. Evaporator Heater (EVH) 25. Hydronic Pump Package (HPP). 26. Water Flow Switch (WFS4). 27. Rubber-in-shear Isolators (RIS). 28. Spring Isolators (SPG)
3.0 EXECUTION
3.1 Installation Work By Mechanical Contractor
A. Install on a flat surface level within 1/16 inches [1.6mm] and of sufficient strength to support concentrated loading. Place vibration isolators under the unit.
B. Assemble and install all components furnished loose by manufacturer as recommended by the manufacturer’s literature.
C. Complete all fluid and electrical connections so unit, fluid circuits and electrical circuits are serviceable.
D. Provide and install valves in fluid piping upstream and downstream of the evaporator to provide means of isolating shells for maintenance and to balance and trim system.
E. Provide soft sound and vibration eliminator connections to the evaporator fluid inlet and outlet as well as electrical connections to the unit.
F. Interlock chillers through a flow switch in the chilled fluid line to the chilled fluid pump to ensure the unit can operate only when fluid flow is established.
G. Furnish and install taps for thermometers and pressure gauges in fluid piping adjacent to inlet and outlet connections of the evaporator.
H. Provide and install drain valves with capped hose ends to each fluid box.
I. Install vent cocks to each fluid box.
3.2 Work By Temperature Control Contractor A. Furnish interlock wiring per manufacturer’s
recommendations and install loose control components furnished by chiller manufacturer.
3.3 Work By Electrical Contractor A. Furnish power wiring to chiller control panel
and obtain required code approval. B. Furnish and install approved disconnect
switch and short circuit protection and short circuit protection.
Please Scan Herefor quick link to Dunham-Bush website
Manufacturer reserves the right to change specifications without prior notice.
South Africa
No. 57 Sovereign DriveRoute 21 Corporate ParkIrene, PretoriaSouth Africa
Tel: 27-12-345 4202Fax: 27-12-345 4203
United Kingdom
8 Downley Road,Havant, Hampshire,England PO9 2JD
Tel : 44-23-9247 7700Fax: 44-23-9245 0396
Malaysia
Lot 5755-6, Kidamai Industrial Park,Bukit Angkat,43000 Kajang,Selangor Darul Ehsan,Malaysia
Tel: 603-8924 9000Fax: 603-8739 5020
China
No. 1 Dunham-Bush Road,Laishan District, Yantai,Shandong Province,China 264003
Tel: 86-535-658 8999Fax: 86-535-658 1999
United Arab Emirates
Al Murad Tower, Office 506Al-Barsha 1,P. O. Box # 30922,Dubai, UAE
Tel: 971-4-451 9899Fax: 971-4-451 9881
Singapore
2, Kallang Pudding Road #07-07,Mactech Industrial Building,Singapore 349307
Tel: 65-6842 2012Fax: 65-6842 2013
Products that perform...By people who care
Vietnam
10th Floor, Nam A Bank Tower, 201-203 Cach Mang Thang 8 Street, District 3, Ho Chi Minh City, Vietnam
TeL : 84-8-6290 3108 Fax : 84-8-6290 3109
M-S-0495B-1013
