Carrier HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR Installation Instructions Manual

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

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Carrier HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR Installation Instructions Manual Manual pdf 1 page image

Installation InstructionsSAFETY CONSIDERATIONSCentrifugal liquid chillers are designed to provide safeand reliable service when operated within design speci-fications. When operating this equipment, use good judg-ment and safety precautions to avoid damage to equip-ment 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.DO NOT VENT refrigerant relief devices within a building. Outlet fromrupture disc or relief valve must be vented outdoors in accordance withthe latest edition of ANSI/ASHRAE 15 (American National StandardsInstitute/American Society of Heating, Refrigeration and Air-ConditioningEngineers) (Safety Code for Mechanical Refrigeration). The accumu-lation of refrigerant in an enclosed space can displace oxygen and causeasphyxiation.PROVIDE adequate ventilation in accordance with ANSI/ASHRAE 15, especially for enclosed and low overhead spaces. Inha-lation of high concentrations of vapor is harmful and may cause heartirregularities, unconsciousness, or death. Intentional misuse can be fa-tal. Vapor is heavier than air and reduces the amount of oxygen avail-able for breathing. Product causes eye and skin irritation. Decompo-sition products are hazardous.DO NOT USE OXYGEN to purge lines or to pressurize a machine forany purpose. Oxygen gas reacts violently with oil, grease, and othercommon substances.DO NOT USE air to leak test. Use only refrigerant or dry nitrogen.NEVER EXCEED specified test pressures. VERIFY the allowable testpressure by checking the instruction literature and the design pressureson the equipment nameplate.DO NOT VALVE OFF any safety device.BE SURE that all pressure relief devices are properly installed and func-tioning before operating any machine.RISK OF INJURY OR DEATH by electrocution. High voltage is presenton motor leads even though the motor is not running when a solid stateor inside-delta mechanical starter is used. Open the power supply dis-connect before touching motor leads or terminals.DO NOT WELD OR FLAMECUT any refrigerant line or vessel untilall refrigerant (liquid and vapor) has been removed from chiller. Tracesof vapor should be displaced with dry air or nitrogen and the work areashould be well ventilated. Refrigerant in contact with an open flameproduces toxic gases.DO NOT USE eyebolts or eyebolt holes to rig machine sections or theentire assembly.DO NOT work on high-voltage equipment unless you are a qualifiedelectrician.DO NOT WORK ON electrical components, including controlpanels, switches, starters, or oil heater until you are sure ALL POWERIS OFF and no residual voltage can leak from capacitors or solid-statecomponents.LOCK OPEN AND TAG electrical circuits during servicing. IF WORKIS INTERRUPTED, confirm that all circuits are deenergized beforeresuming work.AVOID SPILLING liquid refrigerant on skin or getting it into the eyes.USE SAFETY GOGGLES. Wash any spills from the skin with soapand water. If liquid refrigerant enters the eyes, IMMEDIATELY FLUSHEYES with water and consult a physician.NEVER APPLY an open flame or live steam to a refrigerant cylinder.Dangerous over pressure can result. When it is necessary to heat re-frigerant, use only warm (110 F [43 C]) water.DO NOT REUSE disposable (nonreturnable) cylinders or attempt torefill them. It is DANGEROUS AND ILLEGAL. When cylinder is emp-tied, evacuate remaining gas pressure, loosen the collar, and unscrewand discard the valve stem. DO NOT INCINERATE.CHECK THE REFRIGERANT TYPE before adding refrigerant to themachine. The introduction of the wrong refrigerant can causemachine damage or malfunction.Operation of this equipment with refrigerants other than those citedherein should comply with ANSI/ASHRAE15 (latest edition). ContactCarrier for further information on use of this machine with otherrefrigerants.DO NOT ATTEMPT TO REMOVE fittings, covers, etc., whilemachine is under pressure or while machine is running. Be sure pres-sure is at 0 psig (0 kPa) before breaking any refrigerant connection.CAREFULLY INSPECT all relief valves, rupture discs, and otherrelief devices AT LEAST ONCE A YEAR. If machine operatesin a corrosive atmosphere, inspect the devices at more frequentintervals.DO NOT ATTEMPT TO REPAIR OR RECONDITION anyrelief valve when corrosion or build-up of foreign material (rust, dirt,scale, etc.) is found within the valve body or mechanism. Replace thevalve.DO NOT install relief devices in series or backwards.USE CARE when working near or in line with a compressed spring.Sudden release of the spring can cause it and objects in its path to actas projectiles.DO NOT STEP on refrigerant lines. Broken lines can whip about andrelease refrigerant, causing personal injury.DO NOT climb over a machine. Use platform, catwalk, or staging. Fol-low safe practices when using ladders.USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to lift or moveinspection covers or other heavy components. Even if components arelight, use mechanical equipment when there is a risk of slipping orlosing your balance.BE AWARE that certain automatic start arrangements CAN ENGAGETHE STARTER, TOWER FAN, OR PUMPS. Open the disconnect aheadof the starter, tower fan, and pumps. Shut off the machine or pumpbefore servicing equipment.USE only repaired or replacement parts that meet the code require-ments of the original equipment.DO NOT VENT OR DRAIN waterboxes containing industrial brines,liquid, gases, or semisolids without the permission of your process con-trol group.DO NOT LOOSEN waterbox cover bolts until the waterbox has beencompletely drained.DOUBLE-CHECK that coupling nut wrenches, dial indicators, or otheritems have been removed before rotating any shafts.DO NOT LOOSEN a packing gland nut before checking that the nuthas a positive thread engagement.PERIODICALLY INSPECT all valves, fittings, and piping for corro-sion, rust, leaks, or damage.PROVIDE A DRAIN connection in the vent line near each pressurerelief device to prevent a build-up of condensate or rain water.19XR50/60 HzHermetic Centrifugal Liquid Chillerswith HFC-134aManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 2Tab 5aPC 211 Catalog No. 531-940 Printed in U.S.A. Form 19XR-2SI Pg 1 10-97 Replaces: 19XR-1SI