Carrier 19XR Installation Instructions Manual

Also see for HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR: User manual Start-up and service instructions Installation instructions Product data Start-up, operation and maintenance instructions

Contents

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53190039-01 Printed in U.S.A. Form 19XR-CLT-15SI Pg 1 10-16 Replaces: 19XR-CLT-14SIInstallation InstructionsSAFETY CONSIDERATIONSCentrifugal liquid chillers are designed to provide safeand reliable service when operated within design specifi-cations. When operating this equipment, use good judg-ment and safety precautions to avoid damage toequipment and property or injury to personnel.Be sure you understand and follow the procedures andsafety precautions contained in the machine instruc-tions, as well as those listed in this guide.DANGERFailure to follow these procedures will result in severe per-sonal injury or death.DO NOT VENT refrigerant relief devices within a build-ing. Outlet from rupture disc or relief valve must be ventedoutdoors in accordance with the latest edition of ANSI/ASHRAE 15 (American National Standards Institute/American Society of Heating, Refrigerating and Air-Con-ditioning Engineers) (Safety Code for Mechanical Refrig-eration). The accumulation of refrigerant in an enclosedspace can displace oxygen and cause asphyxiation.PROVIDE adequate ventilation in accordance with ANSI/ASHRAE 15, especially for enclosed and low overheadspaces. Inhalation of high concentrations of vapor is harm-ful and may cause heart irregularities, unconsciousness, ordeath. Intentional misuse can be fatal. Vapor is heavier thanair and reduces the amount of oxygen available for breath-ing. Product causes eye and skin irritation. Decompositionproducts are hazardous.DO NOT USE OXYGEN to purge lines or to pressurize amachine for any purpose. Oxygen gas reacts violently withoil, grease, and other common substances.DO NOT USE air to leak test. Use only refrigerant or drynitrogen.NEVER EXCEED specified test pressures. VERIFY theallowable test pressure by checking the instruction litera-ture and the design pressures on the equipment nameplate.DO NOT VALVE OFF any safety device.BE SURE that all pressure relief devices are properlyinstalled and functioning before operating any machine.RISK OF INJURY OR DEATH by electrocution. Highvoltage is present on motor leads even though the motor isnot running when a solid state or inside-delta mechanicalstarter is used. Open the power supply disconnect beforetouching motor leads or terminals.WARNINGFailure to follow these procedures may result in personalinjury or death.DO NOT USE TORCH to remove any component. Systemcontains oil and refrigerant under pressure.To remove a component, wear protective gloves and gog-gles and proceed as follows:a. Shut off electrical power to unit.b. Recover refrigerant to relieve all pressure from sys-tem using both high-pressure and low pressure ports.c. Traces of vapor should be displaced with nitrogenand the work area should be well ventilated. Refrig-erant in contact with an open flame produces toxicgases.d. Cut component connection tubing with tubing cutterand remove component from unit. Use a pan to catchany oil that may come out of the lines and as a gagefor how much oil to add to the system.e. Carefully unsweat remaining tubing stubs when nec-essary. Oil can ignite when exposed to torch flame.DO NOT USE eyebolts or eyebolt holes to rig machinesections or the entire assembly.DO NOT work on high-voltage equipment unless you are aqualified electrician.DO NOT WORK ON electrical components, includingcontrol panels, switches, starters, or oil heater until you aresure ALL POWER IS OFF and no residual voltage canleak from capacitors or solid-state components.LOCK OPEN AND TAG electrical circuits during servic-ing. IF WORK IS INTERRUPTED, confirm that all cir-cuits are de-energized before resuming work.AVOID SPILLING liquid refrigerant on skin or getting itinto the eyes. USE SAFETY GOGGLES. Wash any spillsfrom the skin with soap and water. If liquid refrigerantenters the eyes, IMMEDIATELY FLUSH EYES withwater and consult a physician.NEVER APPLY an open flame or live steam to a refriger-ant cylinder. Dangerous over pressure can result. When it isnecessary to heat refrigerant, use only warm (110 F [43 C])water.DO NOT REUSE disposable (nonreturnable) cylinders orattempt to refill them. It is DANGEROUS AND ILLE-GAL. When cylinder is emptied, evacuate remaining gaspressure, loosen the collar, and unscrew and discard thevalve stem. DO NOT INCINERATE.CHECK THE REFRIGERANT TYPE before addingrefrigerant to the machine. The introduction of the wrongrefrigerant can cause machine damage or malfunction.(Warnings continued on next page.)AquaEdge ®19XRTwo-Stage Semi-Hermetic Centrifugal Liquid Chillerswith PIC 5 Controls and HFC-134a50/60 Hz