Carrier 17EX User Manual (English)

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Start-Up, Operation, and Maintenance Instructions

SAFETY CONSIDERATIONS

Centrifugal liquid chillers are designed to provide safe

and reliable service when operated within design speci-

ﬁcations. When operating this equipment, use good judg-

ment and safety precautions to avoid damage to equip-

ment 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.

DO NOT VENT refrigerant relief valves within a building. Outlet

from rupture disc or relief valve must be vented outdoors in ac-

cordance with the latest edition of ASHRAE (American Society of

Heating, Refrigeration, and Air Conditioning Engineers) 15. The

accumulation of refrigerant in an enclosed space can displace oxy-

gen and cause asphyxiation.

PROVIDE adequate ventilation in accordance with ASHRAE 15,

especially for enclosed and low overhead spaces. Inhalation of high

concentrations of vapor is harmful and may cause heart irregulari-

ties, 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 literature 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 machine.

DO NOT WELD OR FLAME CUT 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 chiller sections or

the entire assembly.

DO NOT work on high-voltage equipment unless you are a quali-

ﬁed electrician.

DO NOT WORK ON electrical components, including control pan-

els, 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 OPENANDTAG electrical circuits during servicing. IF WORK

IS INTERRUPTED, conﬁrm that all circuits are deenergized be-

fore 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 cyl-

inder. Dangerous overpressure can result. When 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 chiller. The introduction of the wrong refrigerant can cause dam-

age or malfunction to this chiller.

Operation of this equipment with refrigerants other than those

cited herein should comply with ASHRAE-15 (latest edition). Con-

tact Carrier for further information on use of this chiller with other

refrigerants.

DO NOTATTEMPT TO REMOVE ﬁttings, covers, etc., while chiller

is under pressure or while chiller is running. Be sure pressure 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 chiller 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.

RUN WATER PUMPS when removing, transferring, or charg-

ing refrigerant.

DO NOT STEP on refrigerant lines. Broken lines can whip about

and cause personal injury.

DO NOT climb over a chiller. 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 com-

ponents are light, use such equipment when there is a risk of slip-

ping or losing your balance.

BE AWARE that certain automatic start arrangements CAN EN-

GAGE 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 require-

ments of the original equipment.

DO NOTVENTOR DRAIN waterboxes containing industrial brines,

liquid, gases, or semisolids without permission of your process con-

trol 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 cor-

rosion, rust, leaks, or damage.

PROVIDE A DRAIN connection in the vent line near each pres-

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

water.

17EX

Externally Geared Centrifugal Liquid Chillers

50/60 Hz

1500 to 2250 Nominal Tons (5280 to 7910 kW)

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

Book 2

Tab 5d

PC 211 Catalog No. 531-721 Printed in U.S.A. Form 17EX-1SS Pg 1 7-97 Replaces: New

Brand	Carrier
Model	17EX
Category	Chiller
Language	English

Carrier 17EX User Manual

Table of Contents

Carrier 17EX Specifications

Summary

SAFETY CONSIDERATIONS

17EX CHILLER FAMILIARIZATION

System Components

Cooler

Condenser

Compressor

REFRIGERATION CYCLE

LUBRICATION CYCLE

Compressor Lubrication Cycle

External Gear Lubrication Cycle

STARTERS

CONTROLS

Definitions

General

LID Operation and Menus

GENERAL

ALARMS AND ALERTS

LID DEFAULT SCREEN MENU ITEMS

MENU STRUCTURE

TO VIEW OR CHANGE POINT STATUS

SERVICE OPERATION

TO VIEW AND CHANGE SET POINTS

Table 2 — LID Display Data

EXAMPLE 1 — STATUS01 DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 2 — STATUS02 DISPLAY SCREEN

EXAMPLE 3 — STATUS03 DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 4 — STATUS04 DISPLAY SCREEN

EXAMPLE 5 — SETPOINT DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 6 — CONFIGURATION (CONFIG) DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 7 — LEAD/LAG CONFIGURATION DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 8 — SERVICE1 DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 9 — SERVICE2 DISPLAY SCREEN

EXAMPLE 10 — SERVICE3 DISPLAY SCREEN

Table 2 — LID Display Data (cont)

EXAMPLE 11 — MAINTENANCE (MAINT01) DISPLAY SCREEN

EXAMPLE 12 — MAINTENANCE (MAINT02) DISPLAY SCREEN

PIC System Functions

CAPACITY CONTROL

DEADBAND

OCCUPANCY SCHEDULE

Safety Controls

Ramp Loading Control

Capacity Override (See Table 4)

High Discharge Temperature Control

Auto. Restart After Power Failure

Surge Prevention Algorithm

Lead/Lag Control

LEAD/LAG OPERATION

Standby Chiller Configuration and Operation

Ice Build Control

Attach to Network Device Control

Service Operation

TO ACCESS THE SERVICE SCREENS

START-UP/SHUTDOWN/RECYCLE SEQUENCE (Fig. 22)

Local Start-Up

Shutdown Sequence

Chilled Water Recycle Mode

BEFORE INITIAL START-UP

Job Data Required

Equipment Required

Remove Shipping Packaging

MOTOR

MOTOR

Motor Electrical Connection

Leak Test the Chiller

Chiller Dehydration

Inspect Wiring

CHECK INSULATION RESISTANCE

Motor Pre-Start Checks

External Gear Pre-Start Checks