Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 211 Catalog No. 531-984 Printed in U.S.A. Form 19XR-6SI Pg 1 5-04 Replaces: 19XB-1SI
Book 2
Ta b 5 a
Installation, Operating, and
Maintenance Instructions
Positive pressure storage systems are designed to provide
safe and reliable service when operated within design specifi-
cations. When operating this equipment, use good judgment
and safety precautions to avoid damage to equipment and
property or injury to personnel.
Installation, start-up, and servicing of this equipment can be
hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.). Only
trained, qualified installers and service technicians should
install, start up, and service this equipment.
Be sure you understand and follow the procedures and safety
precautions contained in this guide.
DO NOT VENT refrigerant relief valves within a building. Outlet from
rupture disc or relief valve must be vented outdoors in accordance with
the latest edition of ASHRAE 15 (American Society of Heating,
Refrigeration, and Air Conditioning Engineers). The accumulation
of refrigerant in an enclosed space can displace oxygen and cause
asphyxiation.
PROVIDE adequate ventilation in accordance with ASHRAE 15, espe-
cially for enclosed and low overhead spaces. Inhalation of high concen-
trations of vapor is harmful 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 machine 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 literature and the design pressures
on the equipment nameplate.
DO NOT USE air for leak testing. Use only tracer gases and dry
nitrogen.
DO NOT VALVE OFF any safety device.
BE SURE that all pressure relief devices are properly installed and
functioning before operating any machine.
DO NOT WELD OR FLAMECUT any refrigerant line or vessel until
all refrigerant (liquid and vapor) has been removed from chiller. Traces
of vapor should be displaced with dry air or nitrogen and the work area
should be well ventilated. Refrigerant in contact with an open flame
produces toxic gases.
DO NOT USE eyebolts or eyebolt holes to rig machine sections 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 servicing. IF
WORK IS INTERRUPTED, confirm that all circuits 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 any enters the eyes, IMMEDIATELY FLUSH EYES with
water and consult a physician.
NEVER APPLY an open flame or live steam to a refrigerant cylinder.
Dangerous overpressure can result. When necessary to heat refrigerant,
useonlywarm(110F[43C])water.
DO NOT REUSE disposable (nonreturnable) cylinders or attempt 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. DO NOT INCINERATE.
CHECK THE REFRIGERANT TYPE before transferring refrigerant
to the machine. The introduction of the wrong refrigerant can cause
damage or malfunction to this machine.
Operation of this equipment with refrigerants other than those cited
herein should comply with ASHRAE 15 (latest edition). Contact
Carrier for further information on use of this machine with other
refrigerants.
ENSUREthatrefrigerantisonlypumpedtoorstoredintanksthatare
ASME (American Society of Mechanical Engineers) certified for the
pressures appropriate to the refrigerant being handled.
DO NOT ATTEMPT TO REMOVE fittings, covers, etc., while
machine 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 devices, rupture discs, and other
relief devices AT LEAST ONCE A YEAR. If machine operates in a
corrosive atmosphere, inspect the devices at more frequent intervals.
DO NOT ATTEMPT TO REPAIR OR RECONDITION any relief
device when corrosion or build-up of foreign material (rust, dirt, scale,
etc.) is found within the valve body or mechanism. Replace the device.
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 act as
projectiles.
EQUIPMENT should be operated by certified personnel only.
DO NOT STEP on refrigerant lines. Broken lines can whip about and
cause personal injury and damage to the machine.
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 move
inspection covers or other heavy components. Even if components are
light, use such equipment when there is a risk of slipping or losing your
balance.
BE AWARE that certain automatic start arrangements CAN ENGAGE
THE STARTER. Open the disconnect ahead of the starter in addition to
shutting off the machine or pump.
USE only repair or replacement parts that meet the code requirements
of the original equipment.
DOUBLE-CHECK that coupling nut wrenches, dial indicators, or other
items have been removed before rotating any shafts.
DO NOT LOOSEN a packing gland nut before checking that the nut
has a positive thread engagement.
PERIODICALLY INSPECT all valves, fittings, and piping for corro-
sion, rust, leaks, or damage.
DO NOT MIX REFRIGERANT from chillers that use different com-
pressor oils. Compressor damage can result.
19XR
Positive Pressure Storage System
50/60 Hz
