Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53190045-01 Printed in U.S.A. Form 19XR,XRV-CLT-10SS Pg 1 12-16 Replaces: 19XR,XRV-CLT-9SS

Start-Up, Operation, and Maintenance Instructions

SAFETY CONSIDERATIONS

Centrifugal liquid chillers are designed to provide safe

and reliable service when operated within design specifi-

cations. When operating this equipment, use good judg-

ment 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 chiller instructions

as well as those listed in this guide.

DANGER

Failure to follow these procedures will result in severe per-

sonal injury or death.

DO NOT VENT refrigerant relief valves within a building.

Outlet from rupture disc or relief valve must be vented out-

doors in accordance with the latest edition of ANSI/

ASHRAE 15 (American National Standards Institute/

American Society of Heating, Refrigerating, and Air-

Conditioning Engineers). The accumulation of refrigerant

in an enclosed space can displace oxygen and cause

asphyxiation.

PROVIDE adequate ventilation in accordance with ANSI/

ASHRAE 15, especially for enclosed and low overhead

spaces. Inhalation of high concentrations of vapor is harm-

ful and may cause heart irregularities, unconsciousness, or

death. Misuse can be fatal. Vapor 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

chiller 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 litera-

ture 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 and functioning before operating any chiller.

RISK OF INJURY OR DEATH by electrocution. High

voltage is present on motor leads even though the motor is

not running when a solid-state or wye-delta mechanical

starter is used. Open the power supply disconnect before

touching motor leads or terminals.

WARNING

Failure to follow these procedures may result in personal

injury or death.

DO NOT USE TORCH to remove any component. System

contains 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 nitrogen

and the work area should be well ventilated. Refrig-

erant in contact with an open flame produces toxic

gases.

d. Cut component connection tubing with tubing cutter

and remove component from unit. Use a pan to catch

any oil that may come out of the lines and as a gage

for 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 chiller sec-

tions or the entire assembly.

DO NOT work on high-voltage equipment unless you are a

qualified electrician.

DO NOT WORK ON electrical components, including

control panels, switches, starters, or oil heater until you are

sure ALL POWER IS OFF and no residual voltage can

leak 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 deenergized before resuming work.

AVOID SPILLING liquid refrigerant on skin or getting it

into the eyes. USE SAFETY GOGGLES. Wash any spills

from the skin with soap and water. If liquid refrigerant

enters the eyes, IMMEDIATELY FLUSH EYES with

water and consult a physician.

NEVER APPLY an open flame or live steam to a refriger-

ant cylinder. Dangerous overpressure can result. When it is

necessary to heat refrigerant, use only warm (110 F [43 C])

water.

DO NOT REUSE disposable (nonreturnable) cylinders or

attempt to refill them. It is DANGEROUS AND ILLE-

GAL. When cylinder is emptied, evacuate remaining gas

pressure, loosen the collar, and unscrew and discard the

valve stem. DO NOT INCINERATE.

CHECK THE REFRIGERANT TYPE before adding

refrigerant to the chiller. The introduction of the wrong

refrigerant can cause damage or malfunction to this chiller.

(Warnings continued on next page.)

AquaEdge

19XR,XRV

Single-Stage or Two-Stage

Semi-Hermetic Centrifugal Liquid Chillers

with PIC II Controls and HFC-134a

50/60 Hz

Carrier AquaEdge 19XR series - Safety Controls

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