Carrier HFC-134a- Manual

Carrier HFC-134a

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Table of Contents:

  • Page 2 – turer is not responsible for any damage incurred in transit.
  • Page 3 – Rigging the Machine —; Lift machine only from; Fig. 2 — Model Number Identification
  • Page 4 – Fig. 3 — Typical 23XRV Components
  • Page 5 – Fig. 5 — VFD Nameplate
  • Page 7 – Fig. 7 — Machine Electrical Data Nameplate; MACHINE RIGGING GUIDE
  • Page 8 – Table 1 — Drive Assembly and Power Module Ratings
  • Page 9 – Table 3 — 23XRV Dimensions (Marine Waterbox); Table 4 — 23XRV Waterbox Nozzle Sizes
  • Page 10 – Table 7 — 23XRV Heat Exchanger Data; Table 8A — 23XRV Additional Data for Cooler Marine Waterboxes
  • Page 11 – Table 8B — 23XRV Additional Data for Condenser Marine Waterboxes; Table 9A — 23XRV Waterbox Cover Weights — English (lb); Table 9B — 23XRV Waterbox Cover Weights — SI (kg)
  • Page 13 – Separate Machine Components —; Fig. 12 — Cooler/Discharge Pipe Assembly Removal
  • Page 14 – Fig. 13 — Evaporator Refrigerant Liquid
  • Page 15 – Fig. 16 — VFD Shipping Bracket; Fig. 17 — Motor Terminals; Fig. 19 — Control Panel Connectors
  • Page 16 – Fig. 20 — Control Panel Back; Fig. 21 — Control Center Lifting Points
  • Page 17 – Fig. 22 — Control Panel Inputs
  • Page 18 – Table 10 — Compressor Fastener Identification; Fig. 23 — Compressor Removal
  • Page 19 – VFD Installation; Fig. 24 — Oil Concentrator Removal
  • Page 20 – Fig. 25 — Oil Reclaim Piping; Fig. 26 — Oil Reclaim Components
  • Page 21 – Fig. 27 — Motor Terminal Box; Fig. 28 — Motor Terminal Insulation
  • Page 22 – Install Machine Supports; Fig. 29 — Motor Ground Cable
  • Page 23 – Fig. 31 — 23XRV Machine Footprint; Fig. 33 — Accessory Isolation; HRS —; ACCESSORY SOLEPLATE DETAIL
  • Page 24 – Connect Piping; Fig. 34 — 23XRV Accessory Spring Isolation; Fig. 35 — Typical Nozzle Piping
  • Page 25 – NOZZLE-IN HEAD WATERBOXES; FRAME 3; NOZZLE ARRANGEMENT CODES FOR ALL 23XRV NOZZLE-IN-HEAD WATERBOXES
  • Page 26 – MARINE WATERBOXES; MARINE WATERBOXES
  • Page 27 – DIMENSIONS; Fig. 38 — Optional Pumpout Unit and Storage Tank; TOP VIEW
  • Page 28 – RATED DRY WEIGHT AND REFRIGERANT CAPACITY; (Configured to Push Liquid into Storage Tank)
  • Page 29 – (Configured to Store Refrigerant in Cooler or Condenser)
  • Page 30 – Make Electrical Connections —; Fig. 42 — Pumpout Unit; Fig. 43 — Relief Valve Arrangements
  • Page 31 – Table 11 — Relief Valve Locations
  • Page 32 – Fig. 44 — Typical Field Wiring Schematic
  • Page 35 – Table 12 — Lug Capacity; VFD
  • Page 38 – Fig. 46 — 23XRV Controls Schematic
  • Page 40 – DPI Communications Interface Board; Status LEDs; Fig. 47 — Control Terminal Blocks
  • Page 43 – Table 13 — Cable Manufacturers; MANUFACTURER; Fig. 51 — Oil Pump Wiring
  • Page 44 – Table 14 — Insulator Codes; Lead-Lag Control Wiring —
  • Page 51 – INSTALLATION START-UP REQUEST CHECKLIST
Loading the manual

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

Catalog No. 532-309

Printed in U.S.A.

Form 23XRV-1SI

Pg 1

309 6-06

Replaces: New

Book 2

Tab

5e

Installation Instructions

SAFETY CONSIDERATIONS

Screw liquid chillers are designed to provide safe and
reliable service when operated within design specifica-
tions. 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 machine instruc-
tions, 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 accor-

dance with the latest edition of ANSI/ASHRAE 15 (American

National Standards Institute/American Society of Heating, Refrigera-

tion and Air-Conditioning Engineers) (Safety Code for Mechanical

Refrigeration). 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 harmful and may cause

heart irregularities, unconsciousness, or death. Intentional 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.
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.
RISK OF INJURY OR DEATH by electrocution. High voltage

is present on motor leads even though the motor is not running.

Open the power supply disconnect before touching motor leads or

terminals.

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 heat exchangers 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 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.
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 information on use of this machine with

other refrigerants.
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 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.

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 covers or other heavy components. Even if compo-

nents 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 require-

ments 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.
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.
PROVIDE A DRAIN connection in the vent line near each pressure

relief device to prevent a build-up of condensate or rain water.

EVERGREEN®

23XRV High-Efficiency Variable Speed Screw Chiller

with Foxfire™ Compression Technology

and PIC III Controls

50/60 Hz

HFC-134a

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Summary

Page 2 - turer is not responsible for any damage incurred in transit.

2 CONTENTS Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Job Data . . . . . . . . . . . . . . ...

Page 3 - Rigging the Machine —; Lift machine only from; Fig. 2 — Model Number Identification

3 Identifying the Drive by Part Number — Each LiquiFlo™ 2.0 AC drive can be identified by its part number. See Fig. 5. This number appears on the shipping label and on the VFD nameplate.Drive Input Component Location — Figure 6 identifies the control center components.Identifying the Power Module by...

Page 4 - Fig. 3 — Typical 23XRV Components

4 20 19 18 17 16 15 14 1 3 12 11 10 9 8 7 6 5 4 3 2 1 21 22 23 24 25 26 27 28 29 30 32 31 33 35 34 36 37 38 39 40 41 50 49 48 47 46 45 51 44 43 42 1 — Motor Terminal Cover Plate 2 — Variable Frequency Drive 3 — International Chiller Visual Controller (ICVC) 4 — Discharge Pipe Relief Valve 5 — Conden...

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