Product Data. Features/Benefits. AQUASNAP 30RAP Air-Cooled Chillers with PURON Refrigerant (R-410A)

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1 Product Data AQUASNAP 3RAP1-6 Air-Cooled Chillers with PURON Refrigerant (R-41A) 1 to 6 Nominal Tons (35 to 21 Nominal kw) a a The AquaSnap chiller is an effective allin-one package that is easy to install and easy to own. AquaSnap chillers operate quietly and efficiently. Valueadded features include: Rotary scroll compression HFC Puron refrigerant (R-41A) Low-sound AeroAcoustic fan system Easy to use ComfortLink controls Optional integrated hydronic pump package with VFD (variable frequency drive) compatible motors Microchannel condenser coil technology Accessory fluid storage tank Optional digital scroll compressors Features/Benefits Carrier s superior chiller design provides savings at initial purchase, at installation, and for years afterward. Costs less right from the start Carrier s AquaSnap chillers feature a compact, all-in-one package design that installs quickly and easily on the ground or the rooftop. The optional pump and hydronic components are already built in; this costs less than buying and installing the components individually. The chiller s fully integrated and pre-assembled hydronic system installs in minutes. No other chiller in this class installs so easily and inexpensively. The preassembled and integrated hydronic module utilizes top-quality components and pumps to ensure years of reliable operation. Use of the optional fluid storage tank reduces installation costs and ensures sufficient fluid volume is available for closecoupled and process cooling applications. The AquaSnap unit s high efficiency keeps costs down. Copyright 21 Carrier Corporation Form 3RAP-3PD

2 Features/Benefits (cont) AquaSnap chillers make noise in the marketplace, not the workplace. The AquaSnap chiller s low-sound AeroAcoustic fan produces up to half the sound level of propeller fans. Much of the noise reduction is in frequencies where noise is most annoying, which makes AquaSnap chillers ideal for sound-sensitive environments. When lower ambient temperatures allow part-load operation or during scheduled nighttime operation, the units operate with fewer fans and become even quieter. AquaSnap chillers are quiet during the day and even quieter at night. The savings will continue to mount Besides costing less to buy and install, AquaSnap chillers are also more affordable to operate. Carrier s Aqua Series chillers are our most efficient air-cooled models. The AquaSnap chiller provides full-load EER (Energy Efficiency Ratio) up to 1.5 and IPLV (integrated part-load value) up to AquaSnap chillers use ultra-quiet, highefficiency rotary scroll compressors, operated in single (sizes 1 and 15) and tandem (sizes 18 to 6) per independent circuit for greater efficiency at partial loads. Electronic expansion valve (EXV) allows for precise control through all operating ranges, resulting in higher efficiency and improved reliability. Proven reliability that s built in Thousands of AquaSnap chillers are already in service around the world. This field-proven design is backed by a 12-month warranty that includes the hydronic system. The compressors are maintenance-free and protected by an auto-adaptive control that minimizes compressor wear. Unit sizes 35 and up have two independent refrigerant circuits. Year-round operation is standard, from 2 F ( 29 C) (with optional cooler heater, low ambient control, and wind baffles) to 12 F (5 C). Rotary scroll compressors provide smooth, quiet and reliable operation. All-in-one package AquaSnap chillers provide the most comprehensive chilled water circuit available for any air-cooled chiller. 2 Included is a brazed plate direct expansion cooler that may be remotemounted. The cooler is also completely drainable with factory-installed vents and drains. Electronic thermal-dispersion flow switch is included with the cooler. The switch is factory installed and tested and contains no moving parts for high reliability. Optional integrated hydronics package is more than just a pump, it is an entire chilled water system, including: Single/dual pumps up to 7.5 hp and 12 ft head Regular strainer Cleanout strainer Flow regulator Freeze protection to 2 F ( 29 C) (with freeze protection option) Heaters Required piping Pressure/temperature taps Isolation valves for dual pump systems VFD compatibility The factory-installed and tested hydronics package provides faster, simpler and less expensive installation. Digital scroll compressors are available as a factory-installed option. These allow for incremental unloading with capacity modulation to better match building load when compared to standard scroll compressors. Environmentally sound Carrier s Puron refrigerant (R-41A) enables you to make a responsible decision in the protection of the earth s ozone layer. Puron refrigerant is an HFC refrigerant that does not contain chlorine that is damaging to the ozone layer. Puron refrigerant is unaffected by the Montreal Protocol. Puron refrigerant is a safe, non-toxic*, efficient and environmentally sound refrigerant for the future. Durable construction The 3RAP chillers have a structurally sound base that can be point-loaded, therefore, no perimeter base rail is required. All 3RAP units have weatherized cabinets constructed of heavy-duty galvanized steel with exterior panels painted with corrosion-resistant baked enamel. Inside and outside surfaces are protected to ensure long life and good appearance. The durable, galvanized steel, painted components exceed the requirements of the 5-hour salt spray test per ASTM (American Society for Testing and Materials) B117. ComfortLink TM controls speak your language The ComfortLink controls communicate in plain English, making it as easy as possible to monitor and control each AquaSnap chiller while accurately maintaining fluid temperatures. The large scrolling marquee display acts as a window into the unit s operation, providing easy-to-read information about chiller performance and over 15 diagnostic functions. Carrier 3 Series chillers ComfortLink controls provide features such as chilled water temperature reset, demand limiting, compressor wear minimization and protection, temperature and pressure displays and diagnostic functions. These controls result in higher chiller reliability, simplified training and more productive service calls with correspondingly lower operational and maintenance costs. Carrier s exclusive accessory handheld Navigator display provides convenience and powerful information in the palm of your hand. The Navigator display helps technicians to quickly diagnose problems and even prevent them from occurring. All AquaSnap units are ready to be used with the Carrier Comfort Network (CCN) system. AquaSnap units minimize the impact on your footprint, as well as your bottom line The integrated hydronics and the chilled fluid storage tank s placement under the chiller minimize the footprint, allowing easy installation almost anywhere. Novation heat exchanger technology The Novation heat exchanger design with microchannel (MCHX) condenser coil is a robust, cost effective alternative to traditional coil design. These coils are offered coated or uncoated to match coil protection to site conditions. The Carrier Electronic Catalog (E-Cat) can be used to determine whether or not corrosion protection is recommended for particular applications in coastal/marine environments. * Under ASHRAE Standard , R-41A is classified as an A1 refrigerant.

3 Run Status Service Test Temperatures Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms ENTER Following the input of the requested data, the E-Cat program output will advise the appropriate coil to be used. Other factors described in "Selection Guide: Environmental Corrosion Protection, Novation Heat Exchanger with Microchannel Coil Technology" catalog number must also be considered to determine if corrosion protection is required. Microchannel coils are more robust than other coil types, making them easier to clean without causing damage to the coil. Due to the compact all aluminum design, microchannel coils will reduce average unit operating weight by 25% compared to the previous 3RA units. The streamlined MCHX coil design also reduces refrigerant charge by an average of 6% compared to the previous 3RA units. AEROACOUSTIC FAN vs. PROPELLER FAN MODE Run Status Service Test Temperature Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Alarm Status ESCAPE ENTER SCROLLING MARQUEE DISPLAY ComfortLink SOUND POWER [db(a)] PENETRATES BUILDING STRUCTURE /3 OCTAVE BAND CENTER FREQUENCY (Hz) AEROACOUSTIC FAN PROPELLER FAN AEROACOUSTIC FAN VS PROPELLER FAN MODE Alarm Status ESC NAVIGATOR DISPLAY MODULE LOW-SOUND AEROACOUSTIC FAN WITH NIGHTTIME LOW SOUND TUBES FINS a3-486 MANIFOLD OPTIONAL HYDRONIC PACKAGE MICROCHANNELS NOVATION HEAT EXCHANGER TECHNOLOGY WITH MICROCHANNEL CONDENSER COILS 3

4 Model number nomenclature AQUASNAP CHILLER MODEL NUMBER DESIGNATION 3RA P 1 6 D 6 3RA Air-Cooled AquaSnap Chiller Refrigerant Type P Puron Packaging/Security Options Std Packaging 4 Security Grilles/Hail Guards Only 8 Skid Only D Skid, Security Grilles/Hail Guards J Skid, Top Crate, Bag N Skid, Top Crate, Bag, Security Grilles/Hail Guards Unit Sizes Controls/Communications Options Std 5 EMM B EMM, GFI Voltage / Electrical Options No Disconnect, No Cooler Heater 1 No Disconnect, Cooler Heater D Non-Fused Disconnect, No Cooler Heater F Non-Fused Disconnect, Cooler Heater Condenser Coil/Low Sound Options 5 MCHX, Value Sound Fan 6 MCHX, E-coat, Value Sound Fan D MCHX, AeroAcoustic Fan F MCHX, E-coat, AeroAcoustic Fan J MCHX, AeroAcoustic Fan, Ultra-Low Sound K MCHX, E-coat, AeroAcoustic Fan, Ultra-Low Sound Revision Level Current Revision Level Ambient/Capacity Control/Interrupt Options Std Comp, Std Interrupt 1 Hot Gas Bypass, Std Interrupt 2 Digital Comp, Std Interrupt 3 Std Comp, High SCCR 4 Hot Gas Bypass, High SCCR 5 Digital Comp, High SCCR 6 Low Ambient, Std Comp, Std Interrupt 7 Low Ambient, Hot Gas Bypass, Std Interrupt 8 Low Ambient, Digital Comp, Std Interrupt 9 Low Ambient, Std Comp, High SCCR B Low Ambient, Hot Gas Bypass, High SCCR C Low Ambient, Digital Comp, High SCCR Hydronic System No Pump 1 Single Pump, 1 Hp 2 Single Pump, 1.5 Hp 3 Single Pump, 2 Hp 4 Single Pump, 3 Hp 5 Single Pump, 5 Hp 6 Single Pump, 5 Hp High Head 7 Single Pump, 7.5 Hp 8 Dual Pump, 1 Hp 9 Dual Pump, 1.5 Hp B Dual Pump, 2 Hp C Dual Pump, 3 Hp D Dual Pump, 5 Hp F Dual Pump, 5 Hp High Head G Dual Pump, 7.5 Hp EMM Energy Management Module GFI Ground Fault Interrupting MCHX Microchannel Heat Exchanger SCCR Short Circuit Current Rating Quality Assurance Certified to ISO 91: 2 Table of contents Page Features/Benefits Model Number Nomenclature AHRI Capacity Ratings Physical Data Options and Accessories ,1 Base Unit Dimensions Accessory Dimensions Selection Procedure Performance Data Typical Piping and Wiring Electrical Data Controls Typical Control Wiring Schematic Application Data Guide Specifications a

5 AHRI* capacity ratings UNIT 3RAP CAPACITY COP Coefficient of Performance EER Energy Efficiency Ratio IPLV Integrated Part Load Value COMPRESSOR POWER INPUT (kw) FAN POWER (kw) TOTAL POWER (kw) FULL LOAD IPLV COOLER FLOW RATE COOLER WATER PRESSURE DROP Tons kw EER COP EER COP GPM L/s Ft wg kpa * Air Conditioning, Heating, and Refrigeration Institute. NOTE: Based on AHRI-55/59 standard rating conditions. Ratings are for standard chillers only. Ratings do not include options. 5

6 Physical data *All units have Victaulic connections, sized for IPS Carbon Steel piping. Flow switch and strainer are standard on all units, with or without hydronic package. ENGLISH UNIT 3RAP OPERATING WEIGHT (lb) MCHX Condenser Coil, No Pump MCHX Condenser Coil, Single Pump MCHX Condenser Coil, Dual Pump REFRIGERANT TYPE R-41A, EXV Controlled System Total Refrigerant Charge (lb) Refrigerant Charge (lb) Ckt A/Ckt B 8.6/ 9.6/ 14.6/ 15.2/ 16.7/ 17.6/ 14.3/ / / / / /17.4 COMPRESSORS Scroll, Hermetic Quantity Speed (Rpm) 35 (Qty, Tons) Ckt A (1) 11 (1) 15 (2) 9 (2) 1 (2) 13 (2) 15 (2) 1 (2) 1 (2) 11 (2) 13 (2) 13 (2) 15 (Qty, Tons) Ckt B (2) 9 (2) 11 (2) 13 (2) 13 (2) 15 (2) 15 Oil Charge (Pt) Ckt A/Ckt B 6.9/ 6.9/ 13.8/ 13.8/ 13.8/ 13.8/ 13.8/ / / / / /13.8 No. Capacity Steps Standard With Hot Gas Bypass Digital Compressor Option Minimum Capacity Step (%) Standard With Hot Gas Bypass Digital Compressor Option Capacity (%) Circuit A Circuit B COOLER Brazed, Direct-Expansion Plate Heat Exchanger Weight (lb) (empty) Net Fluid Volume (gal) Maximum Refrigerant Pressure (psig) Maximum Water-Side Pressure Without Pump(s) (psig) Maximum Water-Side Pressure With Pump(s) (psig) CHILLER WATER CONNECTIONS (in.) Inlet and Outlet, Victualic (IPS Carbon Steel)* / / / / / / 2 Drain (NPT) 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 CONDENSER FANS Standard Low-Sound AeroAcoustic Plastic Type, Axial, Vertical Discharge Type Fan Speed (Rpm) No. Blades...Diameter (in.) No. Fans Total Airflow (Cfm) ,5 17,5 19,4 19,4 29,6 29,5 29,3 3,5 38,8 38,8 Optional Value Sound Type Propeller Type, Axial, Vertical Discharge Fan Speed (Rpm) No. Blades...Diameter (in.) No. Fans Total Airflow (Cfm) 12,6 12,6 23,4 23,4 26, 26, 39,8 39,6 39,3 41, 52,1 52,1 CONDENSER COILS Novation MCHX Aluminum Tube, Aluminum Fin Quantity (Ckt A/Ckt B) 1/ 1/ 1/ 1/ 1/ 1/ 1/1 1/1 1/1 1/1 1/1 1/1 Total Face Area (sq ft) Maximum Refrigerant Pressure (psig) HYDRONIC MODULE (Optional) Pump(s), Strainer with Blowdown Valve, Expansion Tank, Pressure Taps, Drain and Vent Plugs, Flow Switch, and Balance Valve Pump Single or Dual, Centrifugal Monocell Pump(s), 35 Rpm. Dual pumps with check valves and isolation valves. Expansion Tank Volume (gal) Total/Acceptance 4.4/ /1.3 CHASSIS DIMENSIONS (ft - in.) Length Width Height EXV Electronic Expansion Valve MCHX Microchannel Heat Exchanger 6

7 EXV Electronic Expansion Valve MCHX Microchannel Heat Exchanger *All units have Victaulic connections, sized for IPS Carbon Steel piping. Flow switch and strainer are standard on all units, with or without hydronic package. SI UNIT 3RAP OPERATING WEIGHT (kg) MCHX Condenser Coil, No Pump MCHX Condenser Coil, Single Pump MCHX Condenser Coil, Dual Pump REFRIGERANT TYPE R-41A, EXV Controlled System Total Refrigerant Charge (kg) Refrigerant Charge (kg) Ckt A/Ckt B 3.9/ 4.4/ 6.6/ 7.1/ 7.6/ 8./ 6.8/ / / / / /8.1 COMPRESSORS Scroll, Hermetic Quantity Speed (R/s) 58.3 (Qty, kw) Ckt A (1) 38 (1) 53 (2) 32 (2) 35 (2) 46 (2) 53 (2) 35 (2) 35 (2) 38 (2) 46 (2) 46 (2) 53 (Qty, kw) Ckt B (2) 32 (2) 38 (2) 46 (2) 46 (2) 53 (2) 53 Oil Charge (L) Ckt A/Ckt B 3.3/ 3.3/ 6.5/ 6.5/ 6.5/ 6.5/ 6.5/ / / / / /6.5 No. Capacity Steps Standard With Hot Gas Bypass Digital Compressor Option Minimum Capacity Step (%) Standard With Hot Gas Bypass Digital Compressor Option Capacity (%) Circuit A Circuit B COOLER Brazed, Direct-Expansion Plate Heat Exchanger Weight (kg) (empty) Net Fluid Volume (L) Maximum Refrigerant Pressure (kpa) Maximum Water-Side Pressure Without Pump(s) (kpa) Maximum Water-Side Pressure With Pump(s) (kpa) CHILLER WATER CONNECTIONS (in.) Inlet and Outlet, Victualic (IPS Carbon Steel)* / / / / / / 2 Drain (NPT) 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 1 / 2 CONDENSER FANS Standard Low-Sound AeroAcoustic Plastic Type, Axial, Vertical Discharge Type Fan Speed (R/s) No. Blades...Diameter (mm) No. Fans Total Airflow (L/s) , 14, 13,8 14,4 18,3 18,3 Optional Value Sound Type Propeller Type, Axial, Vertical Discharge Fan Speed (R/s) No. Blades...Diameter (mm) No. Fans Total Airflow (L/s) , 11, 12,3 12,3 18,8 18,7 18,5 19,4 24,6 24,6 CONDENSER COILS Novation MCHX Aluminum Tube, Aluminum Fin Quantity (Ckt A/Ckt B) 1/ 1/ 1/ 1/ 1/ 1/ 1/1 1/1 1/1 1/1 1/1 1/1 Total Face Area (sq m) Maximum Refrigerant Pressure (kpa) HYDRONIC MODULE (Optional) Pump(s), Strainer with Blowdown Valve, Expansion Tank, Pressure Taps, Drain and Vent Plugs, Flow Switch, and Balance Valve Pump Single or Dual, Centrifugal Monocell Pump(s), 35 Rpm. Dual pumps with check valves and isolation valves. Expansion Tank Volume (L) Total/Acceptance 17.4/ /39. CHASSIS DIMENSIONS (mm) Length Width Height

8 Physical data (cont) 3RAP SIZE POUNDS A B C D UNIT WEIGHTS STANDARD UNITS SINGLE PUMP UNITS DUAL PUMP UNITS 3RAP SIZE KILOGRAMS Total Weight A B C D Total Weight RAP SIZE POUNDS A B C D 3RAP SIZE KILOGRAMS Total Weight A B C D Total Weight RAP SIZE POUNDS A B C D 3RAP SIZE KILOGRAMS Total Total A B C D Weight Weight RAP1-3 UNITS 3RAP35-6 UNITS B C B C CONTROL BOX SIDE a CONTROL BOX SIDE NOTE: When the accessory storage tank is employed, the value for total weight increases (to be added to the weights shown above) by 1673 pounds (759 kg) on 3RAP1-15, by 2193 pounds (995 kg) on 3RAP18-3, and by 4361 pounds (1978 kg) on 3RAP35-6. Even with the storage tank, all 3RAP chillers require only 4-point support. A D A D 8

9 Options and accessories ITEM FACTORY-INSTALLED OPTION FIELD-INSTALLED ORY Condenser Coil and Sound Options MCHX E-Coat X Low Sound Compressor Blankets X Value Sound Fans X Ultra-Low Sound X Controls/Communication Options BACnet* Translator Control X Chillervisor System Manager III Multi-Unit Control X Energy Management Module (EMM) X X LON (Local Operating Network) Translator Control X Navigator Display X Remote Enhanced Display X Touch Pilot Display X Cooler Options Freeze Protection Cooler Heaters X Remote Cooler Kit X Electrical Options Unit-Mounted Main Disconnect, Non-Fused X GFI Convenience Outlet (115 v) X X High SCCR (Short Circuit Current Rating) X Hydronics Option Hydronic Pump Package X Fluid Storage Tank X Refrigeration Circuit Options Low Ambient Temperature Head Pressure Control X X Hot Gas Bypass (not available on sizes 1 and 15) X X Digital Compressor (not available on size 18) X Security/Packaging Options Security Grilles/Hail Guards X X Vibration Isolation X Wind Baffles X * Sponsored by ASHRAE (American Society of Heating, Refrigeration, and Air Conditioning Engineers). Factory-installed options Novation heat exchanger technology microchannel coil (aluminum fin/aluminum tube) e-coat condenser is available for optimum durability. Novation heat exchangers with microchannel coil technology are offered coated or uncoated to match coil protection to site conditions. The Carrier Electronic Catalog (E-Cat) can be used to determine whether or not corrosion protection is recommended for particular applications in coastal/marine environments. Following the input of the requested data, the E- Cat program output will advise the appropriate coil to be used. Other factors described in "Selection Guide: Environmental Corrosion Protection, Novation Heat Exchanger with Microchannel Coil Technology" catalog number must also be considered to determine if corrosion protection is required. Value sound fans provide a metal, propeller-type fan system which is cost-effective when compared to the lowsound aero-acoustic fan system. This factory-installed fan option is compatible with the Motormaster V option. Ultra-low sound provides a combination of low sound AeroAcoustic fans with sound blankets. Digital compressor control allows incremental unloading for a closer match to building load. This option is not available on the 18 size unit. High short circuit current rating provides a short circuit current rating protection for the unit up to 65, A on 46-v, 38-v, and 28/23-v units or 25, A on 575-v units. Motormaster V low-ambient control provides control of fan motor operation to maintain head pressure at low outdoor ambient temperatures down to 2 F ( 29 C) This option also requires field-installed wind baffles. This option is also available as an accessory. This option is a standard feature on all 3RAP1 and 15 chillers. Non-fused disconnect includes factory-installed nonfused disconnect capability for power and control located at the unit. Energy management module provides energy management capabilities to minimize chiller energy consumption. Several features are provided with this module including leaving fluid temperature reset, cooling set point reset or demand limit control from a 4 to 2 ma signal, 2-point demand limit control (from to 1%) activated by a remote contact closure, and discrete input for Ice Done indication for ice storage system interface. The EMM is also available as an accessory. Freeze protection with cooler heaters provides protection from cooler freeze-up to 2 F ( 29 C). GFI convenience outlet is a factory-installed convenience outlet that includes 4-amp GFI (ground fault interrupter) receptacle with independent fuse protection. Convenience outlet is 115-v female receptacle. This option is also available as an accessory. Hydronic pump package option adds circulating pumps, complete with controls, contactor, VFD compatible motors, and insulated expansion tank. Available in single or dual (lead/lag controlled) cooler pump versions, with 9

10 Options and accessories (cont) total dynamic head external to the chiller from approximately 15 to 12 ft (4.6 to 36.6 m). Hot gas bypass option allows additional capacity reduction for unit operation down below the minimum standard step of capacity. This option is not available on units with the digital compressor option or on the 3RAP1 and 15 units. This option is also available as an accessory on all 3RAP units without digital compressors. Security grilles/hail guards consist of louvered, sheet metal panels which securely fasten to the chiller and provide condenser coil protection against hail and physical damage. This option is also available as an accessory. Field-installed accessories BACnet translator control provides an interface between the unit and a BACnet Local Area Network (LAN, i.e., MS/TP EIA-485). Chillervisor System Manager III multi-unit control accessory allows sequencing of between two and eight chillers in parallel. Pump control is also provided. Energy management module provides energy management capabilities to minimize chiller energy consumption. Several features are provided with this module including leaving fluid temperature reset, cooling set point reset or demand limit control from a 4 to 2 ma signal, 2-point demand limit control (from to 1%) activated by a remote contact closure, and discrete input for Ice Done indication for ice storage system interface. The EMM is also available as an option. LON (local operating network) translator control provides an interface between the unit and a local operating network (i.e., LonWorks* FT-1A ANSI/EIA-79.1). Navigator display module provides a portable, hand held display module for convenient access to unit status, operation, configuration and troubleshooting diagnostics capability. The 4-line, 8-character LCD (liquid crystal display) display provides clear language information in English, French, Spanish or Portuguese. The weatherproof enclosure and industrial grade extension cord make the Navigator module ideally suited for outdoor applications. Magnets located on the back of the module allow attachment of any sheet metal component for hands free operation. Remote enhanced display accessory kit contains a remotely mounted 4-character per line, 16-line display panel for unit diagnostics. Touch Pilot display is a cost-effective, touch-screen, remote-mount device that can be used in lieu of the remote enhanced display. Motormaster V low-ambient control provides control of outdoor-fan motor operation to maintain head pressure at low outdoor ambient temperatures down to 2 F ( 29 C). This accessory also requires field-installed wind baffles. This accessory is also available as a factory-installed option. This accessory is standard on 3RAP1 and 15 units. Chilled water storage tank provides a minimum of 4 gallons per ton loop storage capacity. Includes insulated steel shell tank, Victaulic pipe connections, electric tank heaters, electric cables, vent, drain, and enclosure to allow tank to be installed under the chiller to protect to 2 F ( 29 C). The power supply for the storage tank is obtained from the chiller, so no separate power source is required for this accessory. Vibration isolation consists of field-installed 1 / 4 -in. (.64 cm) neoprene isolator pads (24-in. x 3-in.) (61. cm x 7.6 cm) that reduce vibration transmission from the compressor through the floor and into the conditioned space. Low sound compressor blankets reduce unit sound levels by providing an acoustic blanket on each compressor. Hot gas bypass accessory allows additional capacity reduction for unit operation below the minimum standard step of capacity. This accessory is not available on units which have the digital compressor option. This field-installed accessory is also available as a factory-installed option, but the factory option is not available with digital compressors or unit sizes of 1 or 15. Remote cooler kit provides the additional hardware required to remotely mount the cooler from the unit. There are limits to total separation of the unit to the cooler as well as vertical separation limits, and these are delineated in the accessory installation instructions. Never bury refrigerant piping on these or any other applications. GFI convenience outlet is a field-installed convenience outlet that includes a 4-amp GFI (ground fault interrupter) receptacle with independent fuse protection. The convenience outlet is a 115-v female receptacle. The GFI convenience outlet is also available as a factory-installed option. Security grilles/hail guards consist of louvered, sheet metal panels which securely fasten to the chiller and provide condenser coil protection against hail and physical damage. Security grilles/hail guards are also available as a factory-installed option. Wind baffles facilitate operation down to 2 F ( 29 C) when used in conjunction with low ambient temperature head pressure control. *Registered trademark of Echelon Corporation. 1

11 Base unit dimensions 3RAP1,15 CENTER OF GRAVITY UNIT HEIGHT VICTAULIC CONNECTIONS UNIT X Y H (STANDARD) H (VALUE SOUND) WATER IN/OUT 3RA [467] 37.8 [96] 66.5 [1689] 61. [1549] 2" 3RA [466] [957] 66.5 [1689] 61. [1549] 2" 66.5 [1689.1] 9.52 [ ] 1. [ 25.4 ] SEE NOTE #3 TYP [ ] [ ] 1. [ 25.4 ] SEE NOTE #3 TYP. 36 [914] MIN. 48 [1219] MIN. Y RADIUS 2 [58] CONTROL BOX HINGED [ ] STANDARD CONTROL BOX HINGED 1.5 [ 38.1 ] NOTES: 1. DO NOT CAP OR OTHERWISE OBSTRUCT THE LIQUID LINE TEMPERATURE RELIEF. 2. 7/8 [22.4] PILOT HOLE PROVIDED FOR LOCATING FIELD POWER WIRING. ACTUAL HOLE REQUIRED DEPENDS ON FIELD WIRE SIZING [11.1] HOLE USED FOR MOUNTING UNIT. 4. UNIT MUST HAVE CLEARANCES AS FOLLOWS: TOP - DO NOT RESTRICT. COIL SIDE - 42 [167] FROM SOLID SURFACE. PANEL SIDE - 48 [1219] PER NEC. 5. SEE TABLE COLUMN H; DIMENSION FOR STANDARD FAN OR VALUE SOUND FAN OPTION. 6. CARRIER DOES NOT RECOMMEND INSTALLATION IN A PIT. 7. UNIT CAN BE HANDLED USING THE FORK TRUCK LIFT POCKETS. 8. WATER CONNECTIONS RECESSED 2-3/8 INCHES INSIDE UNIT. 9. DIMENSIONS ARE IN INCHES. DIMENSIONS IN [ ] ARE IN MILLIMETERS AIR FLOW SERVICE FIELD CONTROL WIRING CONNECTIONS WATER-OUT WATER-IN COMPRESSOR FRONT VIEW FORK TRUCK POCKETS PANEL SIDE SEE NOTE #4 COIL AREA CG X TOP VIEW 4.5 [128.7] 7/8 [ 22.4 ] FIELD POWER ENTRY SEE NOTE # [ ] RIGHT SIDE VIEW 42 [167] MIN. SERVICE CLEARANCE BORDER (NOT TO SCALE) AIR FLOW COIL SIDE SEE NOTE #4 36 [914] MIN. H SEE NOTE #5 1.5 [ 38.1 ] VALUE SOUND FAN OPTION (PICTORIALLY) a3-11

12 Base unit dimensions 3RAP18-3 NOTES: 1. DO NOT CAP OR OTHERWISE OBSTRUCT THE LIQUID LINE TEMPERATURE RELIEF. 2. 7/8 [22.4] PILOT HOLE PROVIDED FOR LOCATING FIELD POWER WIRING. ACTUAL HOLE REQUIRED DEPENDS ON FIELD WIRE SIZING [11.1] HOLE USED FOR MOUNTING UNIT. 4. UNIT MUST HAVE CLEARANCES AS FOLLOWS: TOP - DO NOT RESTRICT. COIL SIDE - 42 [167] FROM SOLID SURFACE. PANEL SIDE - 48 [1219] PER NEC. 5. SEE TABLE COLUMN H; DIMENSION FOR STANDARD FAN OR VALUE SOUND FAN OPTION. 6. CARRIER DOES NOT RECOMMEND INSTALLATION IN A PIT. 7. UNIT CAN BE HANDLED USING THE FORK TRUCK LIFT POCKETS. 8. WATER CONNECTIONS RECESSED 2-3/8 INCHES INSIDE UNIT. 9. DIMENSIONS ARE IN INCHES. DIMENSIONS IN [ ] ARE IN MILLIMETERS a

13 Base unit dimensions 3RAP35-6 CENTER OF GRAVITY UNIT HEIGHT VICTAULIC CONNECTIONS X Y (STANDARD) H (VALUE WATER IN/OUT H SOUND) UNIT 3RA [926] 46.8 [117] 66.5 [1689] 61. [1549] 2-1/2" 3RA [921] 44.3 [1118] 66.5 [1689] 61. [1549] 2-1/2" 3RA [921] [1172] 78.5 [1994] 73. [1854] 2-1/2" 3RA5 36. [914] 44. [1118] 78.5 [1994] 73. [1854] 2-1/2" 3RA [927] 44.6 [1133] 78.5 [1994] 73. [1854] 2-1/2" 3RA [927] [1132] 78.5 [1994] 73. [1854] 2-1/2" 48 [1219] MIN. NOTES: 1. DO NOT CAP OR OTHERWISE OBSTRUCT THE LIQUID LINE TEMPERATURE RELIEF. 2. 7/8 [22.4] PILOT HOLE PROVIDED FOR LOCATING FIELD POWER WIRING. ACTUAL HOLE REQUIRED DEPENDS ON FIELD WIRE SIZING [11.1] HOLE USED FOR MOUNTING UNIT. 5. SEE TABLE COLUMN H; DIMENSION FOR STANDARD FAN OR VALUE SOUND FAN OPTION. 6. CARRIER DOES NOT RECOMMEND INSTALLATION IN A PIT. Y 7. UNIT CAN BE HANDLED USING THE FORK TRUCK LIFT POCKETS (MINIMUM OF 6" FORK LENGTH). 1.5 [ 38.1 ] AIR FLOW 8. WATER CONNECTIONS RECESSED 4-1/2 INCHES INSIDE UNIT. DIMENSIONS IN [ ] ARE IN MILLIMETERS COIL AREA 4. UNIT MUST HAVE CLEARANCES AS FOLLOWS: TOP - DO NOT RESTRICT. PANEL SIDE COIL SIDE - 42 [167] FROM SOLID SURFACE. SEE NOTE #4 PANEL SIDE - 48 [1219] PER NEC. COIL SIDE SEE NOTE #4 CG COIL AREA X 9. DIMENSIONS ARE IN INCHES [2247.9] AIR FLOW TOP VIEW 92.5 [2349.5] AIR FLOW 7/8 [22.4] FIELD POWER ENTRY SEE NOTE #2 RIGHT VIEW RADIUS 2 [58] CONTROL BOX HINGED COIL SIDE SEE NOTE #4 FIELD CONTROL WIRING CONTROL BOX CONNECTIONS HINGED H SEE NOTE #5 1.5 [ 38.1 ] CIRCUIT A CIRCUIT B COMPRESSOR COMPRESSOR [ 71.7 ] [ ] 42 [167] MIN. NOTE: 3 OR 4 FANS SERVICE CLEARANCE BORDER (NOT TO SCALE) PANEL SIDE SEE NOTE #4 48 [1219] MIN. 42 [167] MIN. VALUE SOUND FAN OPTION (PICTORIALLY ONLY) WATER-IN WATER-OUT [ 86.2 ] 11.2 [ ] [ ] NOTE # [ ] SEE SEE NOTE #3 TYP. 44. TYP [ ] REAR VIEW FORK TRUCK POCKETS FRONT VIEW a

14 Accessory dimensions ORY STORAGE TANK FOR UNIT SIZES "[63.5] VICTAULIC WATER INLET/OUTLET 1' 1/32" [ 36 ] 1' 11-31/64" [ 597 ] CENTER OF GRAVITY 2.5"[63.5] VICTAULIC WATER INLET/OUTLET 3" [ 76.2 ] 1' 1/32" [ 36 ] MOUNTING HOLES, FOUR CORNERS (TYP) 2' 8-3/4" [ 832 ] 1' 5-13/32" [ 442 ] 1' 5-13/32" [ 442 ].88"[22.35] KNOCKOUT FOR POWER TO CONTROL BOX CONTROL BOX END.395/.45 (TYP) MOUNTING HOLES, MIDDLE EACH SIDE 1-1/2" [ 38.1 ] CENTER OF GRAVITY CONTROL BOX END 5' 8-1/8" [ 173 ] TANK TANK TANK TANK C.B 3' 1-63/64" [ 1193 ] TANK 2' 47/64" [ 628 ] a TANK TANK TANK TANK 14

15 1' 1/64" [ 35 ] 1' 1/32" [ 36 ] 1' 5-13/32" [ 442 ] TANK TANK 1' 5-13/32" [ 442 ] TANK TANK 2.5"[63.5] VICTAULIC WATER INLET/OUTLET ORY STORAGE TANK FOR UNIT SIZES ' 11-17/32" [ 598 ] CENTER OF GRAVITY 3' 8" [ 1118 ] CENTER OF GRAVITY.395/.45 (TYP) MOUNTING HOLES, MIDDLE EACH SIDE 3" [ 76.2 ] MOUNTING HOLES, FOUR CORNERS (TYP) 7' 5-7/8" [ 2283 ] CONTROL BOX END 1-1/2" [ 38.1 ] 2.5"[63.5] VICTAULIC WATER INLET/OUTLET TANK TANK TANK CONTROL BOX END 2' 47/64" [ 628 ].88" (22.35) KNOCKOUT FOR POWER TO THE CONTROL BOX TANK TANK TANK C.B 3' 1-63/64" [ 1193 ] a

16 Accessory dimensions (cont) ORY STORAGE TANK FOR UNIT SIZES /.45 (TYP) MOUNTING HOLES, MIDDLE EACH SIDE 1' 1/64" [ 35 ] 1' 1/32" [ 36 ] 1' 5-13/32" [ 442 ] 3" [ 76.2 ] MOUNTING HOLES, FOUR CORNERS (TYP) TANK 1' 5-13/32" [ 442 ] 1-1/2" [ 38.1 ].88" (22.35) KNOCKOUT FOR POWER TO THE CONTROL BOX 3' 7-63/64" [ 1117 ] CONTROL BOX END 4' 1-23/64" [ 1254 ] CENTER OF GRAVITY MOUNTING HOLES 3' 7-63/64" [ 1117 ] TANK TANK TANK TANK MOUNTING HOLES 2.5"[63.5] VICTAULIC WATER INLET/OUTLET.88" (22.35) KNOCKOUT FOR POWER TO THE CONTROL BOX CONTROL BOX END TANK TANK 3' 8" [ 1118 ] CENTER OF GRAVITY 7' 5-7/8" [ 2283 ] TANK TANK TANK TANK 2' 47/64" [ 628 ] C.B C.B TANK TANK TANK CONTROL BOX END 8' 2-3/4" [ 258 ] a

17 Selection procedure Carrier s electronic catalog chiller selection program provides quick, easy selection of Carrier chillers. The program considers specific temperature, fluid, flow requirements, system pressure drop (for proper pump selection, when required), as well as other factors, such as fouling and altitude correction. To select a 3RAP chiller, including optional pump package when required, use the NACO Packaged Chiller Builder Program. Performance data HEAT EXCHANGER PRESSURE DROP 3RAP1-3 (ENGLISH) DROP ( ) WAT TER PRESSURE GPM a RAP1 4 3RAP2 2 3RAP15 5 3RAP25 3 3RAP18 6 3RAP3 17

18 Performance data (cont) HEAT EXCHANGER PRESSURE DROP 3RAP35-6 (ENGLISH) & 12 4 WATER PRESSURE DR ROP ( ) a GPM 7 3RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 HEAT EXCHANGER PRESSURE DROP 3RAP1-3 (SI) WATE ER PRESSURE DROP (Kpa) LITERS/SECOND a RAP1 4 3RAP2 2 3RAP15 5 3RAP25 3 3RAP18 6 3RAP3 18

19 HEAT EXCHANGER PRESSURE DROP 3RAP35-6 (SI) & WAT TER PRESSURE DROP (Kpa) LITERS/SECOND a RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP NO HYDRONIC PACKAGE 3RAP1-3 (ENGLISH) WAT TER PRESSURE DROP ( ) GPM 1 3RAP1 4 3RAP2 a RAP15 5 3RAP25 3 3RAP18 6 3RAP3 19

20 Performance data (cont) UNIT PRESSURE DROP NO HYDRONIC PACKAGE 3RAP35-6 (ENGLISH) & WAT TER PRESSURE DROP ( ) GPM 7 3RAP35 1 3RAP5 a RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP NO HYDRONIC PACKAGE 3RAP1-3 (SI) WATE ER PRESSURE DROP (Kpa) LITERS/SECOND a RAP1 4 3RAP2 2 3RAP15 5 3RAP25 3 3RAP18 6 3RAP3 2

21 UNIT PRESSURE DROP NO HYDRONIC PACKAGE 3RAP35-6 (SI) & ER PRESSURE DROP (Kpa) WATE LITERS/SECOND 7 3RAP35 1 3RAP5 a RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP SINGLE PUMP HYDRONIC PACKAGE 3RAP1-3 (ENGLISH) WATER PRESSURE DR ROP ( ) GPM 1 3RAP1 4 3RAP2 a RAP15 5 3RAP25 3 3RAP18 6 3RAP3 21

22 Performance data (cont) UNIT PRESSURE DROP SINGLE PUMP HYDRONIC PACKAGE 3RAP35-6 (ENGLISH) & 12 OP ( ) WATER PRESSURE DR GPM a RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP SINGLE PUMP HYDRONIC PACKAGE 3RAP1-3 (SI) PRESSURE DRO OP (Kpa) WATER LITERS/SECOND 1 3RAP1 4 3RAP2 a RAP15 5 3RAP25 3 3RAP18 6 3RAP3 22

23 UNIT PRESSURE DROP SINGLE PUMP HYDRONIC PACKAGE 3RAP35-6 (SI) & 12 PRESSURE DRO OP (Kpa) WATER P LITERS/SECOND a RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP DUAL PUMP HYDRONIC PACKAGE 3RAP1-3 (ENGLISH) WATER PRESSURE DR ROP ( ) GPM 1 3RAP1 4 3RAP2 a RAP15 5 3RAP25 3 3RAP18 6 3RAP3 23

24 Performance data (cont) UNIT PRESSURE DROP DUAL PUMP HYDRONIC PACKAGE 3RAP35-6 (ENGLISH) & 12 WATER PRESSURE DR ROP ( ) GPM a RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 UNIT PRESSURE DROP DUAL PUMP HYDRONIC PACKAGE 3RAP1-3 (SI) WATER PRESSURE DRO OP (Kpa) LITERS/SECOND a RAP1 4 3RAP2 2 3RAP15 5 3RAP25 3 3RAP18 6 3RAP3 24

25 UNIT PRESSURE DROP DUAL PUMP HYDRONIC PACKAGE 3RAP35-6 (SI) & 12 PRESSURE DRO OP (Kpa) WATER P LITERS/SECOND a RAP35 1 3RAP5 8 3RAP4 11 3RAP55 9 3RAP RAP6 25

26 Performance data (cont) PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 1 Hp AND DUAL PUMP 1 Hp /4AAB 3.94" 6 TOTAL DYNAMIC HEAD (FT) EFFY % GPM Effy..9 BHP GPM BHP NPSHr (FT) GPM EFFY Efficiency NPSHr Net Pump Suction Head Required a

27 PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 1.5 Hp AND DUAL PUMP 1.5 Hp /4AAB 4.25" TOTAL DYNAMIC HEAD (FT) GPM EFFY % Effy. BHP BHP GPM NPSHr (FT) GPM EFFY Efficiency NPSHr Net Pump Suction Head Required a

28 Performance data (cont) PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 2 Hp AND DUAL PUMP 2 Hp /4AAB 4.75" 1 TOTAL DYNAMIC HEAD (FT) GPM EFFY % Effy. Effy. BHP BHP GPM NPSHr (FT) GPM EFFY Efficiency NPSHr Net Pump Suction Head Required a

29 PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 3 Hp AND DUAL PUMP 3 Hp /4AAB 4.375" 7 TOTAL DYNAMIC HEAD (FT) GPM Effy. 3 EFFY % 5 BHP BHP GPM NPSHr (FT) 2 1 EFFY Efficiency NPSHr Net Pump Suction Head Required GPM a

30 Performance data (cont) PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 5 Hp LOW HEAD AND DUAL PUMP 5 Hp LOW HEAD /2AAB 4.63" TRIM 11 TOTAL DYNAMIC HEAD (FT) GPM Effy EFFY FY % 5 BHP BHP GPM 3 NPSHr (FT) 2 1 EFFY Efficiency NPSHr Net Pump Suction Head Required GPM 3

31 PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 5 Hp HIGH HEAD AND DUAL PUMP 5 Hp HIGH HEAD SIZES /4AC 5.75" TRIM 14 TOTAL AL DYNAMIC C HEAD (FT)) a3-542 GPM Effy. Effy BHP BHP P EFFY Y% a GPM a NPSHr SHr (FT) GPM EFFY Efficiency NPSHr Net Pump Suction Head Required 31

32 Performance data (cont) PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 5 Hp HIGH HEAD AND DUAL PUMP 5 Hp HIGH HEAD SIZES /2AC 5.25" TRIM 1 TOTAL TAL DYNAMIC HEAD (FT) GPM 6 EFFY % Effy. BHP BHP GPM NPSHr (FT) EFFY Efficiency NPSHr Net Pump Suction Head Required GPM 32

33 PUMP CURVE FOR HYDRONIC PACKAGE SINGLE PUMP 7.5 Hp AND DUAL PUMP 7.5 Hp /2AC 6" TRIM 15 TOTAL DYNAMIC HEAD (FT) GPM 8 7 Effy EFFY % 6 5 BHP BHP GPM NPSHr (FT) GPM EFFY Efficiency NPSHr Net Pump Suction Head Required 33

34 Performance data (cont) STORAGE TANK PRESSURE DROP CURVES 1. a PRESSURE DROP (ft wg) RAP35-6 3RAP ORY TANK FLOW RATE (gpm) 1. a RAP35-6 PRESSURE DROP (kpa) RAP ORY TANK FLOW RATE (L/s) 34

35 Typical piping and wiring 3RAP UNITS WITHOUT HYDRONIC PACKAGE (SIZE 3 SHOWN) AIR FLOW CONTROL WIRING FIELD POWER SUPPLY TO EXPANSION TANK GATE VALVE VIBRATION ELIMINATOR VALVE PRESSURE GAGE FLOW PUMP SHUT OFF VALVES HEAT TAPE INSULATION IS RECOMMENDED ON ALL EXPOSED PIPING IF AMBIENT TEMPERATURE <32 F ( C) AND NO ANTIFREEZE SOLUTION IS IN SYSTEM Airflow Through Condenser Power Wiring Chilled Water Piping NOTES: 1. Chiller must be installed level to within 1 / 8 in. per foot (1.4 mm per meter) to maintain proper compressor oil return and hydraulics. 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and piping shown are for a quick overview of system and are not in accordance with recognized standards. 3. All wiring must comply with applicable local and national codes. 4. All piping must follow standard piping techniques. Refer to Carrier System Design Manual or appropriate ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) handbook for details. a RAP UNITS WITH HYDRONIC PACKAGE (SIZE 3 SHOWN) AIR FLOW CONTROL WIRING FIELD POWER SUPPLY GATE VALVE FLOW NOTE 5 VIBRATION ELIMINATOR HEAT TAPE INSULATION IS RECOMMENDED ON ALL EXPOSED PIPING IF AMBIENT TEMPERATURE <32 F ( C) AND NO ANTIFREEZE SOLUTION IS IN SYSTEM NOTES: 1. Chiller must be installed level to within 1 / 8 in. per foot (1.4 mm per meter) to maintain proper compressor oil return and hydraulics. 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and piping shown are for a quick overview of system and are not in accordance with recognized standards. 3. All wiring must comply with applicable local and national codes. 4. All piping must follow standard piping techniques. Refer to Carrier System Design Manual or appropriate ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) handbook for details. 5. Air separator required as close to chiller as possible (except primary/secondary systems). Airflow Through Condenser Power Wiring Chilled Water Piping a

36 Typical piping and wiring (cont) 3RAP UNITS WITHOUT HYDRONIC PACKAGE (SIZE 6 SHOWN) FIELD POWER SUPPLY TO EXPANSION TANK VIBRATION ELIMINATOR GATE VALVE VALVE PRESSURE GAGE FLOW SHUT OFF VALVES PUMP GATE VALVE VIBRATION ELIMINATOR FLOW Airflow Through Condenser HEAT TAPE INSULATION IS RECOMMENDED ON ALL EXPOSED PIPING IF AMBIENT TEMPERATURE <32 F ( C) AND NO ANTIFREEZE SOLUTION IS IN SYSTEM NOTES: 1. Chiller must be installed level to within 1 / 8 in. per foot (1.4 mm per meter) to maintain proper compressor oil return and hydraulics. 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and piping shown are for a quick overview of system and are not in accordance with recognized standards. 3. All wiring must comply with applicable local and national codes. 4. All piping must follow standard piping techniques. Refer to Carrier System Design Manual or appropriate ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) handbook for details. Power Wiring Chilled Water Piping a RAP UNITS WITH HYDRONIC PACKAGE (SIZE 6 SHOWN) FIELD POWER SUPPLY VIBRATION ELIMINATOR FLOW GATE VALVE Airflow Through Condenser VIBRATION ELIMINATOR Power Wiring NOTE 5 HEAT TAPE INSULATION IS RECOMMENDED ON ALL EXPOSED PIPING IF AMBIENT TEMPERATURE <32 F ( C) AND NO ANTIFREEZE SOLUTION IS IN SYSTEM Chilled Water Piping NOTES: 1. Chiller must be installed level to within 1 / 8 in. per foot (1.4 mm per meter) to maintain proper compressor oil return and hydraulics. 2. Wiring and piping shown are general points-of-connection guides only and are not intended for a specific installation. Wiring and piping shown are for a quick overview of system and are not in accordance with recognized standards. 3. All wiring must comply with applicable local and national codes. 4. All piping must follow standard piping techniques. Refer to Carrier System Design Manual or appropriate ASHRAE (American Society of Heating, a3-487 Refrigerating, and Air Conditioning Engineers) handbook for details. 5. Air separator required as close to chiller as possible (except primary/secondary systems). 36

37 TYPICAL PIPING DIAGRAM ON 3RAP UNITS WITH HYDRONIC PACKAGE Strainer/Blow-Down Valve 2 Expansion Tank 3 Pump 4 Electric Heater 5 Air Vent Connection Port 6 Pressure/Temperature Access Port 7 Heat Exchanger 8 Flow Switch 9 Balance Valve/Drain Plug 1 Pressure Relief 11 Isolation Valves 12 Flex Connections 13 Pressure Reducing/Fill Valve 14 Air Separator and Vent --- Factory Supplied a