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Multiple Compressor
Condensing Units
H-IM-FP March, 2004 Part No. 25006801
Installation and Operation Manual
Table of Contents
Field Wiring .......................................................... 12
Nomenclature ........................................................ 2
Refrigeration Charging ........................................ 13
General Safety Information ................................... 2
Operational Checkout ......................................... 14
Compressor Module Speci
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Nomenclature TPC1 - One Condenser Fan Cabinet TPC2 - Two Condenser Fan Cabinet TPC3 - Three Condenser Fan Cabinet General Safety Information General Safety Information 1. Installation and maintenance to be performed only by certified personnel who are familiar with this type of equipment. 2. Make sure that all field wiring conforms to the requirements of the equipment and all applicable national and local codes. 3. Avoid contact with sharp edges and coil surfaces. They are a potential injury ha
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Compressor Module Specifications Table 1. Hermetic Compressor Module Electrical Data Hermetic Compressor Compressor Data Crankcase Compressor Electrical Rating RLA = MCC/1.56 Heater Refrigerant Evap. Temp. Model Volts Phase Hz RLA LRA MCC Watts Type Lbs. Min. Max HP ART82C1-CAV 208-230 1 60 5.9 30.0 5.9 48 22 10 0 40 1/2 CR18KQ-PFV 208-230 1 50/60 8.1 41.0 12.6 40 22 10 0 40 1 1/2 CR18KQ-TF5 208-230 3 50/60 4.9 40.0 7.7 40 22 10 0 40 1 1/2 CR24KQ-PFV 208-230 1 50/60 12.2 70.5 19.0 40 22 10
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Compressor Module Specifications Table 2. Scroll Compressor Module Electrical Data Scroll Compressor Compressor Data Crankcase Compressor Electrical Rating RLA = MCC/1.56 Heater Refrigerant Evap. Temp. HP Model Volts Phase Hz RLA LRA MCC Watts Type Lbs. Min. Max 2 ZS15K4E-PFV 208-230 1 60 12.2 61.0 19.0 40 404a 22 -5 35 2 ZS15K4E-TF5 208-230 3 60 8.3 55.0 13.0 40 404a 22 -5 35 2 1/2 ZS19K4E-PFV 208-230 1 60 14.7 73.0 23.0 40 404a 22 -5 35 2 1/2 ZS19K4E-TF5 208-230 3 60 8.7 63.0 13.6 40 404a
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SYS. 1 Dimensional Diagrams End View Figure 1. Optional Disconnect Switch One Fan Top View System Position 3 2 1 Electrical Knockout (4) Please note system positions. Liquid Lines Suction Lines Two Fan Top View SYS. 2 X = 100.50 (Three Fan Length) Side View X = 78.00 (Two Fan Length) X = 59.00 (Single Fan Length) Three Fan Top View 5 SYS. 3
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Condensing Unit Placement Space and Location Requirements The most important consideration which must be taken into account when deciding upon the location of air-cooled equipment is the provision for a supply of ambient air to the condenser, and removal of heated air from the condensing unit or remote condenser area. Where this essential requirement is not adhered to, it will result in higher head pressures, which cause poor operation and potential failure of equipment. Units must not be
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Condensing Unit Rigging Figure 3. Condensing Unit Rigging Adequate rigging measures must be taken to support unit weight and to protect the unit from damage during unloading and placement process. Rigging holes have been provided in legs and under the unit compressor compartment frame to assist. Rigging Holes Spreader bars may be used to protect unit from damage. 7
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Refrigeration Piping And Line Sizing Refrigeration Piping And Line Sizing The system as supplied by Heatcraft Refrigeration Products, was thoroughly cleaned and dehydrated at the factory. Foreign matter may enter the system by way of the evaporator to condensing unit piping. Therefore, care must be used during installation of the piping to prevent entrance of foreign matter. Install all refrigeration system components in accordance with applicable local and national codes and in conforman
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Refrigeration Piping Suction Lines NOTE: If the suction line must rise to the point higher than the suction connection on the evaporator, a suction line trap at the outlet of the evaporator must be provided. Horizontal suction lines should slope away from the evaporator toward the compressor at the rate of 1/4’ per 10 feet for good oil return. When multiple evaporators are connected in series using a common suction line, the branch suction lines must enter the top of the common suction lin
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Refrigeration Piping Figure 6. Example of Pipe Support 1. Normally, any straight run of tubing must be supported in at least two locations near each end of the run. Long runs require additional supports. The refrigerant lines should be supported and fastened properly. As a guide, 3/8 to 7/8 should be supported every 5 feet, 1-1/8 and 1-3/8 every 7 feet; and 1- 5/8 and 2-1/8 every 9 to 10 feet. 2. When changing directions in a run of tubing, no corner should be left unsupported. Supp
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Leak Detection And Evacuation Leak Testing After all lines are connected, the entire system must be leak tested. The complete system should be pressurized to not more than 150 PSIG with refrigerant and dry nitrogen. The use of an electronic type of leak detector is highly recommended because of its greater sensitivity to small leaks. As a further check, it is recommended that this pressure be held for a minimum of 12 hours and then rechecked. For a satisfactory installation, the system must
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Field Wiring WARNING: All wiring must be done in accordance with applicable codes and local ordinances. The field wiring should enter the areas as provided on the unit. The wiring diagram for each unit is located on the inside of the electrical panel door. All field wiring should be done in a professional manner and in accordance with all governing codes. Before operating unit, double check all wiring connections, including the factory terminals. Factory connections can vibrate loose during ship
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Refrigeration Charging Refrigeration Charging 1. Install a liquid line drier in the refrigerant supply line between the service gauge and the liquid service port of the receiver. This extra drier will insure that all refrigerant supplied to the system is clean and dry. 2. When initially charging a system that is in a vacuum, liquid refrigerant can be added directly into the receiver tank to break the vacuum. Weighing in the charge is recommended with the initial charge consisting of approxima
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Operational Checkout After the system has been charged and has operated for at least 2 hours at normal operating conditions without any indication of malfunction, it should be allowed to operate overnight on automatic controls. Then a thorough re-check of the entire system operation should be made as follows: (a) Check compressor discharge and suction pressures. If not within system design limits, determine why and take corrective action. (b) Check liquid line sight glass and expansion valve
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Preventive Maintenance Routine preventive maintenance of any mechanical equipment is critical to its long term reliability. During normal operation all equipment will experience some deterioration during its lifetime caused by wear and evironmental influences. For that reason, regularly scheduled maintenance of your refrigeration equipment is required in order to keep it operating to its maximum efficiency while avoiding potentially costly repairs of a premature failure due to equipment neglec
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Preventive Maintenance 16
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Preventive Maintenance 17
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Replacement Parts Table 3. Replacement Parts List Parts Description Part Number Compressor Contactor - 24 Volt 2252440 Compressor Contactor - 230 Volt 2252340 Terminal Block 6 Pole, Control Circuit 2251266 Fan Motor 25399101 Fan Blade 22999901 Fan Guard / Motor Mount 23104401 High Pressure Control 28913201 Low Pressure Control: Adjustable 2891402 Fixed 28913401 Time Delay Relay, Low Pressure Switch 22536801 Fuse 15 Amp 22510001 Top Panel, Over Compressors 40922001 Top Panel, Electrical Comp
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S S S Wiring Diagram Diagram 1. Typical Wiring Diagram WHITE BLACK 19 C1 C2 C3 COMPRESSOR CONTACTOR R1 RELAY COMP. AUX SWITCH RC2 C1A1 C2A1 C3A1 RC1 RC3 R R RU U UN N N C C CA A AP P PA A ACI CI CIT T TO O OR R R CRANKCASE HEATER SC2 CCH1 CCH2 CCH3 SC1 SC3 ST ST STA A AR R RT T T C C CA A AP P PA A ACI CI CIT T TO O OR R R COMPRESSOR SR2 C CO OMP MP1 1 COMP2 COMP3 SR1 SR3 ST ST STA A AR R RT T T R R RE E EL L LA A AY Y Y M1 R1 4 2 FB1 FAN CIRCUIT FUSES TDR1 TDR2 TDR3 CCH3 PB1 POWER BLOCK C
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Start-up Checklist • Is the sight glass free of bubbles? Date of Start-up YES NO Location • Are the COOLER and FREEZER fans at proper CONDENSING UNIT speeds? MODEL # YES NO • Check system for refrigerant leaks. Are there any ELECTRICAL leaks on the COOLER, FREEZER, CONDENSING • Check Compressor Amps for COOLER and UNIT or INTERCONNECTING PIPING? FREEZER compressors. Should match YES NO nameplate. • Check system piping for unusual vibration or YES NO noise. Is there any unus
