Carrier AquaEdge 19XR Series Start-up, Operation And Maintenance Instructions Manual

Also see for AquaEdge 19XR series: Installation instructions Start-up, operation and maintenance instructions

Contents

3INTRODUCTIONPrior to initial start-up of the 19XR unit, those involved in thestart-up, operation, and maintenance should be thoroughly famil-iar with these instructions and other necessary job data. Proce-dures in this manual are arranged in the sequence required forproper chiller start-up and operation. This book also outlines thecontrol system for those involved in the start-up, operation, andmaintenance of the unit before performing start-up procedures. Itis intended to be used in combination with the 19XR Controls Op-eration and Troubleshooting manual that describes PIC 6 controlsin detail.WARNINGDO NOT USE eyebolts or eyebolt holes to rig chiller sectionsor the entire assembly.DO NOT work on high-voltage equipment unless you are aqualified electrician.DO NOT WORK ON electrical components, including con-trol panels, switches, starters, or oil heater until you are sureALL POWER IS OFF and no residual voltage can leak fromcapacitors or solid-state components.LOCK OPEN AND TAG electrical circuits during servicing.IF WORK IS INTERRUPTED, confirm that all circuits arede-energized before resuming work.AVOID SPILLING liquid refrigerant on skin or getting it intothe eyes. USE SAFETY GOGGLES. Wash any spills from theskin with soap and water. If liquid refrigerant enters the eyes,IMMEDIATELY FLUSH EYES with water and consult aphysician.NEVER APPLY an open flame or live steam to a refrigerantcylinder. Dangerous overpressure can result. When it is neces-sary to heat refrigerant, use only warm (110°F [43°C]) water.DO NOT REUSE disposable (nonreturnable) cylinders or at-tempt to refill them. It is DANGEROUS AND ILLEGAL.When cylinder is emptied, evacuate remaining gas pressure,loosen the collar. and unscrew and discard the valve stem. DONOT INCINERATE.CHECK THE REFRIGERANT TYPE before adding refriger-ant to the chiller. The introduction of the wrong refrigerant cancause damage or malfunction to this chiller.Operation of this equipment with refrigerants other than thosecited herein should comply with ANSI/ASHRAE 15 (latestedition). Contact Carrier for further information on use of thischiller with other refrigerants.DO NOT ATTEMPT TO REMOVE fittings, covers, etc.,while chiller is under pressure or while chiller is running. Besure pressure is at 0 psig (0 kPa) before breaking any refriger-ant connection.CAREFULLY INSPECT all relief valves, rupture discs, andother relief devices AT LEAST ONCE A YEAR. If chiller op-erates in a corrosive atmosphere, inspect the devices at morefrequent intervals.DO NOT ATTEMPT TO REPAIR OR RECONDITION anyrelief device when corrosion or build-up of foreign material(rust, dirt, scale, etc.) is found within the valve body or mecha-nism. Replace the device.DO NOT install relief devices in series or backwards.USE CARE when working near or in line with a compressedspring. Sudden release of the spring can cause it and objects inits path to act as projectiles.CAUTIONFailure to follow these procedures may result in personal inju-ry or damage to equipment.DO NOT STEP on refrigerant lines. Broken lines can whipabout and release refrigerant, causing personal injury.DO NOT climb over a chiller. Use platform, catwalk, or stag-ing. Follow safe practices when using ladders.USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to liftor move inspection covers or other heavy components. Even ifcomponents are light, use mechanical equipment when there isa risk of slipping or losing your balance.BE AWARE that certain automatic start arrangements CANENGAGE THE STARTER, TOWER FAN, OR PUMPS.Open the disconnect ahead of the starter, tower fans, or pumps.CAUTIONUSE only repair or replacement parts that meet the code re-quirements of the original equipment.DO NOT VENT OR DRAIN waterboxes containing industrialbrines, liquid, gases, or semisolids without the permission ofyour process control group.DO NOT LOOSEN waterbox cover bolts until the waterboxhas been completely drained.DO NOT LOOSEN a packing gland nut before checking thatthe nut has a positive thread engagement.PERIODICALLY INSPECT all valves, fittings, and piping forcorrosion, rust, leaks, or damage.PROVIDE A DRAIN connection in the vent line near eachpressure relief device to prevent a build-up of condensate orrain water.DO NOT re-use compressor oil or any oil that has been ex-posed to the atmosphere. Dispose of oil per local codes andregulations.DO NOT leave refrigerant system open to air any longer thanthe actual time required to service the equipment. Seal circuitsbeing serviced and charge with dry nitrogen to prevent oil con-tamination when timely repairs cannot be completed.CAUTIONUNIT DAMAGE HAZARDThis unit uses a microprocessor-based electronic control sys-tem. Do not use jumpers or other tools to short out compo-nents or to bypass or otherwise depart from recommended pro-cedures. Any short-to-ground of the control board or accompa-nying wiring may destroy the electronic modules or electricalcomponents.CAUTIONDo NOT punch holes or drill into the top surface of the starterenclosure for field wiring. Knockouts are provided for fieldwiring connections.CAUTIONPROVIDE MACHINE PROTECTION. Store machine andstarter indoors, protected from construction dirt and moistureand if required follow Carrier Long Term Storage guidelines.Inspect under shipping tarps, bags, or crates to be sure waterhas not collected during transit. Keep protective shipping cov-ers in place until machine is ready for installation.