Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53190048-01 Printed in U.S.A. Form 19DV-CLT-1SS Pg 1 8-18 Replaces: New
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 can be present on motor leads even though the
motor is not running. 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 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 or isolate refrigerant from system using
high-pressure and low pressure ports as appropriate.
Note that R-1233zd(E) will be less than atmospheric
pressure until a temperature of about 65°F (18.5°C).
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.
e. Carefully unsweat remaining tubing stubs when
necessary.
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, or starters 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 de-energized 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.
VERIFY that refrigerant storage cylinders are clean with
no residual moisture, oil, or refrigerant that can contami-
nate the refrigerant charge.
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.
(Warnings continued on next page.)
AquaEdge
®
19DV
Two-Stage Back-to-Back Centrifugal Liquid Chillers
with PIC5 Controls and HFO R-1233zd(E)
50/60 Hz
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