Carrier 19FA Series User manual

19FA
50/60 Hz
Hermetic Centrifugal Liquid Chillers
HFC-134a
Installation Instructions
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and
without incurring obligations.
PC 211 Catalog No. 531-965 Form 19FA-3SI 2-95 Replaces: 19FA-2SI
Copyright 1995 Carrier Corporation
Safety Considerations
Centrifugal liquid chillers are designed to provide safe and reliable service when
operated 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 machine instructions, as well as those listed in this guide.
®

DO NOT VENT refrigerant relief devices within a building. Outlet from rupture disc
or relief valve must be vented outdoors in accordance with the latest edition of
American National Standards Institute/American Society of Heating, Refrigeration
and Air Conditioning Engineers (ANSI/ASHRAE) 15. The accumulation of refriger-
ant 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 harmful and may cause heart irregularities, unconsciousness, or death. Inten-
tional misuse can be fatal. Vapor is heavier than air and reduces the amount of
oxygen available for breathing. Product causes eye and skin irritation. Decompo-
sition 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.
DO NOT USE air to leak test. Use only refrigerant or dry nitrogen.
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 VALVE OFF any safety device.
BE SURE that all pressure relief devices are properly installed and functioning
before operating any machine.
DANGER !DANGER

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 dis-
placed with dry air or nitrogen and the work area should be well ventilated. Refrig-
erant 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 volt-
age can leak from capacitors or solid-state components.
LOCK OPEN AND TAG electrical circuits during servicing. IF WORK IS INTER-
RUPTED, confirm that all circuits are deenergized before resuming work.
DO NOT siphon refrigerant.
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 refrigerant cylinder. Dangerous
over pressure can result. When it is necessary to heat refrigerant, use only warm
(110 F [43 C]) water.
WARNING !WARNING

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 adding refrigerant to the machine. The
introduction of the wrong refrigerant can cause machine damage or malfunction.
Operation of this equipment with refrigerants other than those cited herein should
comply with ANSI/ASHRAE-15 (latest edition). Contact Carrier for further informa-
tion on use of this machine with other refrigerants.
DO NOT ATTEMPT TO REMOVE fittings, covers, etc., while machine is under pres-
sure or while machine is running. Be sure pressure is at 0 psig (0 kPa) before
breaking any refrigerant connection.
CAREFULLY INSPECT all relief valves, 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 valve when corrosion
or build-up of foreign material (rust, dirt, scale, etc.) is found within the valve
body or mechanism. Replace the valve.
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.
WARNING !WARNING

CAUTION CAUTION
!
DO NOT STEP on refrigerant lines. Broken lines can whip about and release
refrigerant, causing personal injury.
DO NOT climb over a machine. Use platform, catwalk, or staging. Follow safe
practices when using ladders.
USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to lift or move inspection cov-
ers or other heavy components. Even if components are light, use mechanical
equipment when there is a risk of slipping or losing your balance.
BE AWARE that certain automatic start arrangements CAN ENGAGE THE
STARTER, TOWER FAN, OR PUMPS. Open the disconnect
ahead of
the starter,
tower fan, and pumps. Shut off the machine or pump before servicing
equipment.
USE only repaired or replacement parts that meet the code requirements of the
original equipment.
DO NOT VENT OR DRAIN waterboxes containing industrial brines, liquid, gases,
or semisolids without the permission of your process control group.
DO NOT LOOSEN waterbox cover bolts until the waterbox has been completely
drained.
DOUBLE-CHECK that coupling nut wrenches, dial indicators, or other items have
been removed before rotating any shafts.

CAUTION CAUTION
!
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 corrosion, rust, leaks,
or damage.
PROVIDE A DRAIN connection in the vent line near each pressure relief device to
prevent a build-up of condensate or rain water.

Contents
List of Tables
List of Figures
Safety Considerations
Introduction
General
Job Data
Equipment Required
Installation
Receiving the Machine
Inspect Shipment
Identify Machine
Provide Machine Protection
Rigging the Machine
Rig Machine Assembly
Install Machine Supports

Contents
Connect Piping
Install Water Piping to Heat Exchangers
Install Water Piping to Oil Cooler
Attach Water Supply to Pumpout Condenser
Install Vent Piping to Relief Devices
Make Electrical Connections
Connect Control Inputs
Connect Control Outputs
Connect Free-Standing Field Installed Starter
Carrier Comfort Network Interface
Install Field Insulation
Installation Start-Up Request Checklist

Contents
List of Tables
Table 1A — Rigging and Operating Weights — English (lb)
Table 1B — Rigging and Operating Weights — SI (kg)
Table 2 — Relief Device Locations
Table 3 — Insulation Areas

Contents
List of Figures
Figure 1 — Model Number Identification
Figure 2 — Typical 19FA Installation (1400-2200 Tons
[4922-7735 kW])
Figure 3 — Machine Rigging Guide
Figure 4 — 19FA Dimensions
Figure 5 — Machine Footprint
Figure 6 — Machine Contact Surfaces with Anchor Bolts
Figure 7 — Typical Nozzle Piping
Figure 8 — Piping Flow Data (Cooler, Marine Waterboxes)
Figure 9 — Piping Flow Data (Cooler, NIH Waterboxes)
Figure 10 — Piping Flow Data (Condenser, Marine Waterboxes)
Figure 11 — Piping Flow Data (Condenser, NIH Waterboxes)
Figure 12 — Water Piping, Oil Cooler to Chilled Water Circuit (Typical)
Figure 13 — Pumpout Unit
Figure 14 — Typical 19FA Relief Valve Tree for Storage Vessel
Figure 15 — Compressor Terminal Arrangement 18-Lead, Rear Inlet