United Technologies Carrier 19XRV Start-Up And Service Instructions

Start-Up and Service Instructions

SAFETY CONSIDERATIONS

Centrifugal and screw compressor liquid chillers are
designed to provide safe and reliable service when oper-
ated within design specifications. When operating this
equipment, use good judgment 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 instruc-
tions as well as those listed in this guide
DANGER
Failure to follow these procedures will result in severe per-
sonal injury or death.
ONLY QUALIFIED electrical personnel familiar with the
construction and operation of this equipment and the haz-
ards involved should install, adjust, operate, or service this
equipment.
READ AND UNDERSTAND this manual and other appli-
cable manuals in their entirety before proceeding. Failure
to observe this precaution could result in severe bodily
injury or loss of life.
DO NOT install modification kits with power applied to
the drive. Disconnect and lock out incoming power before
attempting such installation or removal. Failure to observe
this precaution could result in severe bodily injury or loss
of life.
UNUSED WIRES in conduit must be grounded at both
ends to avoid a possible shock hazard caused by induced
voltages. Also, if a drive sharing a conduit is being serviced
or installed, all drives using this conduit should be disabled
to eliminate the possible shock hazard from cross-coupled
motor leads. Failure to observe these precautions could
result in bodily injury.
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-Con-
ditioning Engineers). The accumulation of refrigerant in an
enclosed space can displace oxygen and cause asphyxia-
tion.
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.
(Dangers continued in next column.)
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53190049-01
.
Printed in U.S.A. Form 19/23-7SS
Rockwell PowerFlex 755 VFD Option
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.
THERE IS A RISK OF INJURY OR DEATH by electro-
cution. High voltage may be present on the motor leads
even though the motor is not running. Open the power sup-
ply disconnect before touching motor leads or terminals.
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 work on high-voltage equipment unless you are a
qualified electrician.
DO NOT WORK ON electrical components, including
control panels, switches, VFD, 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 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.
(Warnings continued on next page.)
Pg 1
19XRV, 23XRV
with PIC III Controls
DANGER
WARNING
4-17 Replaces: 19/23-6SS