19XR (PIC II) Hermetic Centrifugal Liquid Chillers 50 Hz - Carrier

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Table description: Table name: HOLIDEFS Holiday configuration sheet Description Range Units Value Holiday start month 1-12 Holiday start day 1-31 Duration 0-99 Days Table description: Table name: HOLIDEFS Holiday configuration sheet Description Range Units Value Holiday start month 1-12 Holiday start day 1-31 Duration 0-99 Days 8
1 - SAFETY CONSIDERATIONS <strong>19XR</strong> liquid chillers are designed to provide safe and reliable service when operated within design specifications. When operating this equipment, use good judgment and safety precautions to avoid damage to equipment and property or injury to personnel. Be sure you understand and follow the procedures and safety precautions contained in the machine instructions as well as those listed in this guide. 1.1 - Installation safety considerations In certain cases the safety stops are installed on ball valves. These valves are factory-supplied lead-sealed in the open position. This system permits isolating and removing the safety stop for checking and replacing. The safety stops are designed and installed to ensure protection against fire risk. Removing the safety stops is only permitted if the fire risk is fully controlled and the responsibility of the user. All factory-installed safety valves are lead-sealed to prevent any calibration change. If a safety stop is removed for checking or replacement please ensure that there is always an active safety stop on each of the reversing valves installed in the unit. The safety valves must be connected to discharge pipes. These pipes must be installed in a way that ensures that people and property are not exposed to refrigerant leaks. These fluids may be diffused in the air, but far away from any building air intake, or they must be discharged in a quantity that is appropriate for a suitably absorbing environment. Periodic check of the safety valves: See paragraph “Maintenance safety considerations”. DANGER: DO NOT VENT refrigerant relief valves within a building. Outlet from relief valve must be vented outdoors. The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation. PROVIDE adequate ventilation, especially for enclosed and low overhead spaces. Inhalation of high concentrations of vapour is harmful and may cause heart irregularities, unconsciousness, or death. Misuse can be fatal. Vapour is heavier than air and reduces the amount of oxygen available for breathing. Product causes eye and skin irritation. Decomposition products are hazardous. DO NOT USE OXYGEN to purge lines or to pressurize a machine for any purpose. Oxygen gas reacts violently with oil, grease, and other common substances. NEVER EXCEED specified test pressures, VERIFY the allowable test pressure by checking the instruction literature and the design pressures on the equipment nameplate. DO NOT USE air for leak testing. Use only refrigerant or dry nitrogen. DO NOT VALVE OFF any safety device. BE SURE that all pressure relief devices are properly installed before operating any machine. 1.2 - Maintenance safety considerations Engineers working on the electric or refrigeration components must be authorized, trained and fully qualified to do so. All refrigerant circuit repairs must be carried out by a trained person, fully qualified to work on these units. He must have been trained and be familiar with the equipment and the installation. All welding operations must be carried out by qualified specialists. Any manipulation (opening or closing) of a shut-off valve must be carried out by a qualified and authorised engineer. These procedures must be carried out with the unit shut-down. NOTE: The unit must never be left shut down with the liquid line valve closed, as liquid refrigerant can be trapped between this valve and the expansion device. (This valve is situated on the liquid line before the filter drier box.) During any handling, maintenance and service operations the engineers working on the unit must be equipped with safety gloves, glasses, shoes and protective clothing. WARNING: DO NOT WELD OR FLAMECUT any refrigerant line or vessel until all refrigerant (liquid and vapour) has been removed from chiller. Traces of vapour should be displaced with dry air nitrogen and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases. DO NOT work on high-voltage equipment unless you are a qualified electrician. DO NOT WORK ON electrical components, including control panels, switches, relays etc, until you are sure ALL POWER IS OFF; residual voltage can leak from capacitors or solid state components. LOCK OPEN AND TAG electrical circuits during servicing. IF WORK IS INTERRUPTED, confirm that all circuits are de-energized before resuming work. 1.3 - Operating checks During the life-time of the system, inspection and tests must be carried out in accordance with national regulations. The information on operating inspections given in annex C of standard EN378-2 can be used if no similar criteria exist in the national regulations. Safety device checks (annex C6 – EN378-2): The safety devices must be checked on site once a year for safety devices (high-pressure switches), and every five years for external overpressure devices (safety globe valves). 9
Page 1 and 2: 19XR (PIC II) Hermetic Centrifugal
Page 3 and 4: TABLE OF CONTENTS (cont'd) 4 - BEFO
Page 5 and 6: INITIAL START-UP CHECKLIST FOR 19XR
Page 7: 19XR HERMETIC CENTRIFUGAL LIQUID CH
Page 11 and 12: 2 - INTRODUCTION AND CHILLER FAMILI
Page 13 and 14: The control centre: registers coole
Page 15 and 16: 1. Rear motor bearing 2. Forward mo
Page 17 and 18: 3 - INSTALLATION 3.1 - Introduction
Page 19 and 20: 3.3.3 - Physical data Table 1 Motor
Page 21 and 22: Maximum and minimum heat exchanger
Page 23 and 24: 1. Hot gas bypass (cut) 2. Compress
Page 25 and 26: 3.4 - Install machine supports Typi
Page 27 and 28: 1. Air vent 2. Leaving condenser wa
Page 29 and 30: 1a. Safety valve on machine 1b. Saf
Page 31 and 32: The control cabinet (standard unit)
Page 33 and 34: Electrical characteristics of the m
Page 35 and 36: 3.6.4 - Make the necessary connecti
Page 37 and 38: Insulate Motor Terminals and Lead W
Page 39 and 40: 4 - BEFORE INITIAL START-UP 4.1 - N
Page 41 and 42: h. Slowly raise the system pressure
Page 43 and 44: 6. Valve off the vacuum pump, stop
Page 45 and 46: The valve is opened counter-clockwi
Page 47 and 48: To return the chiller to normal con
Page 49 and 50: 49 Date: __________________________
Page 51 and 52: To pressurize with dry nitrogen Ano
Page 53 and 54: 7.3.5 - Refrigerant Filter A refrig
Page 55 and 56: X See view A Y See view B Z Thrust

19XR (PIC II) Hermetic Centrifugal Liquid Chillers 50 Hz - Carrier

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