Carrier XRV, EVERGREEN 19XR User Manual

19XR,XRV

Hermetic Centrifugal Liquid Chillers

50/60 Hz

With PIC II Controls and HFC-134a

Start-Up, Operation, and Maintenance Instructions

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 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 accordance with the latest edition of ANSI/ASHRAE 15 (American National Standards Institute/American Society of Heating, Refrigeration, and Air Conditioning Engineers). The accumulation of refrigerant in an enclosed space can displace oxygen and cause as phyxiation.

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. 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 VA LVE O FF an y safe ty de v ice . BE SURE that all pressure relief devices are properly installed and

functioning before operating any chiller. RISK OF INJURY OR DEATH by electrocution. High voltage is

present on motor leads even though the motor is not running when a solid-state or inside-delta mechanical starter is used. Open the power supply disconnect before touching motor leads or terminal

O 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 chiller sections or the entire assembl y.

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 i t into the eyes. USE SAFETY GOGG LES. Wash any spills from the s kin 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 ref riger ant cylinde r. 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 DANGER OUS 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 REFRIGERA NT TYPE before adding refrigerant to the chiller. The introduction of the wrong refrigerant can cause damage or malfunction to this chiller.

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 chiller with other refrigerants.

DO NOT ATTEMPT 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 op erates in a corrosive atmosphere, inspect the devices at more frequent intervals.

DO NOT ATTEMPT TO REPAIR OR RECONDIT ION 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 device s in series or backward s. 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 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 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 fans, or pumps.

USE only repair or replacement parts t hat meet th e code requi rem ent s 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 complete ly d rai ne d.

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 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.

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

Book 2 Ta b 5 a

PC 211 Catalog No. 531-982 Printed in U.S.A. Form 19XR-5SS Pg 1 6-01 Replaces: 19XR-4SS

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ABBREVIATIONS AND EXPLANATIONS . . . . . . . . 4,5

CHILLER FAMILIARIZATION . . . . . . . . . . . . . . . . . . . . 5-7

Chiller Information Nameplate . . . . . . . . . . . . . . . . . . . . 5

System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Motor-Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Factory-Mounted Starter or Variable

Frequency Drive (Optional). . . . . . . . . . . . . . . . . . . . . 7

Storage Vessel (Optional) . . . . . . . . . . . . . . . . . . . . . . . . 7

REFRIGERATION CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . 7

MOTOR AND LUBRICATING OIL

COOLING CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7,8

VFD COOLING CYCLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

LUBRICATION CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . 8,9

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Oil Reclaim System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

• PRIMARY OIL RECOVERY MODE

• SECONDARY OIL RECOVERY METHOD

STARTING EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . 9,10

Unit-Mounted Solid-State Starter

(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Unit-Mounted Wye-Delta Starter

(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Unit-Mounted VFD (Optional) . . . . . . . . . . . . . . . . . . . . 10

CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-45

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

• ANALOG SIGNAL

• DISCRETE SIGNAL

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

PIC II System Components . . . . . . . . . . . . . . . . . . . . . . 11

• CHILLER VISUAL CONTROLLER (CVC)

• INTERNATIONAL CHILLER VISUAL

CONTROLLER (ICVC)

• INTEGRATED STARTER MODULE (ISM)

• CHILLER CONTROL MODULE (CCM)

• OIL HEATER CONTACTOR (1C)

• OIL PUMP CONTACTOR (2C)

• HOT GAS BYPASS CONTACTOR RELAY (3C)

(Optional)

• CONTROL TRANSFORMERS (T1, T2)

• OPTIONAL TRANSFORMER (T3)

CVC/ICVC Operation and Menus. . . . . . . . . . . . . . . . . 15

• GENERAL

• ALARMS AND ALERTS

• CVC/ICVC MENU ITEMS

• BASIC CVC/ICVC OPERATIONS (Using the Softkeys)

• TO VIEW STATUS

• OVERRIDE OPERATIONS

• TIME SCHEDULE OPERATION

• TO VIEW AND CHANGE SET POINTS

• SERVICE OPERATION

PIC II System Functions . . . . . . . . . . . . . . . . . . . . . . . . . 33

• CAPACITY CONTROL FIXED SPEED

• CAPACITY CONTROL VFD

• ECW CONTROL OPTION

• CONTROL POINT DEADBAND

• DIFFUSER CONTROL

• PROPORTIONAL BANDS AND GAIN

• DEMAND LIMITING

• CHILLER TIMERS

• OCCUPANCY SCHEDULE

Safety Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Shunt Trip (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Page

Default Screen Freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Ramp Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Capacity Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

High Discharge Temperature Control . . . . . . . . . . . . 36

Oil Sump Temperature Control . . . . . . . . . . . . . . . . . . 36

Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Remote Start/Stop Controls . . . . . . . . . . . . . . . . . . . . . 36

Spare Safety Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Alarm (Trip) Output Contacts . . . . . . . . . . . . . . . . . . . . 37

Refrigerant Leak Detector . . . . . . . . . . . . . . . . . . . . . . . 37

Kilowatt Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Remote Reset of Alarms. . . . . . . . . . . . . . . . . . . . . . . . . 37

Condenser Pump Control . . . . . . . . . . . . . . . . . . . . . . . 37

Condenser Freeze Prevention . . . . . . . . . . . . . . . . . . . 38

Evaporator Freeze Protection (ICVC Only) . . . . . . . 38

Tower Fan Relay Low and High . . . . . . . . . . . . . . . . . . 38

Auto. Restart After Power Failure. . . . . . . . . . . . . . . . 38

Water/Brine Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

• RESET TYPE 1

• RESET TYPE 2

• RESET TYPE 3

Demand Limit Control Option . . . . . . . . . . . . . . . . . . . 39

Surge Prevention Algorithm

(Fixed Speed Chiller) . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Surge Prevention Algorithm with VFD . . . . . . . . . . . 40

Surge Protection VFD Units . . . . . . . . . . . . . . . . . . . . . 40

Surge Protection (Fixed Speed Chiller) . . . . . . . . . . 40

• HEAD PRESSURE REFERENCE OUTPUT

Lead/Lag Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

• COMMON POINT SENSOR INSTALLATION

• CHILLER COMMUNICAT ION WIRING

• LEAD/LAG OPERATION

• FAULTED CHILLER OPERATION

• LOAD BALANCING

• AUTO. RESTART AFTER POWER FAILURE

Ice Build Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

• ICE BUILD INITIATION

• START-UP/RECYCLE OPERATION

• TEMPERATURE CONTROL DURING ICE BUILD

• TERMINATION OF ICE BUILD

• RETURN TO NON-ICE BUILD OPERATIONS

Attach to Network Device Control . . . . . . . . . . . . . . . 44

• ATTACHING TO OTHER CCN MODULES

Service Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

• TO ACCESS THE SERVICE SCREENS

• TO LOG OUT OF NETWORK DEVICE

• HOLIDAY SCHEDULING

START-UP/SHUTDOWN/RECYCLE

SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46,47

Local Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Shutdown Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Automatic Soft Stop Amps Threshold . . . . . . . . . . . 47

Chilled Water Recycle Mode. . . . . . . . . . . . . . . . . . . . . 47

Safety Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

BEFORE INITIAL START-UP . . . . . . . . . . . . . . . . . . 48-64

Job Data Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Using the Optional Storage Tank

and Pumpout System . . . . . . . . . . . . . . . . . . . . . . . . . 48

Remove Shipping Packaging . . . . . . . . . . . . . . . . . . . . 48

Open Oil Circuit Valves. . . . . . . . . . . . . . . . . . . . . . . . . . 48

Tighten All Gasketed Joints and

Guide Vane Shaft Packing . . . . . . . . . . . . . . . . . . . . . 48

Check Chiller Tightness . . . . . . . . . . . . . . . . . . . . . . . . . 48

Refrigerant Tracer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Leak Test Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Standing Vacuum Test. . . . . . . . . . . . . . . . . . . . . . . . . . . 50

CONTENTS (cont)

Page

Chiller Dehydration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Inspect Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Check Optional Pumpout Compressor

Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Check Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Inspect Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Carrier Comfort Network Interface. . . . . . . . . . . . . . . 54

Check Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

• MECHANICAL STARTER

• BENSHAW, INC. RediStart MICRO™

SOLID-STATE STARTER

• VFD STARTER

Oil Charge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Power Up the Controls and

Check the Oil Heater . . . . . . . . . . . . . . . . . . . . . . . . . . 55

• SOFTWARE VERSION

Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 55

Input the Design Set Points . . . . . . . . . . . . . . . . . . . . . 55

Input the Local Occupied Schedule

(OCCPC01S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Input Service Configurations. . . . . . . . . . . . . . . . . . . . 55

• PASSWORD

• INPUT TIME AND DATE

• CHANGE CVC/ICVC CONFIGURATION

IF NECESSARY

• TO CHANGE THE PASSWORD

• TO CHANGE THE CVC/ICVC DISPLAY FROM

ENGLISH TO METRIC UNITS

• CHANGE LANGUAGE (ICVC ONLY)

• MODIFY CONTROLLER IDENTIFICATION

IF NECESSARY

• INPUT EQUIPMENT SERVICE PARAMETERS

IF NECESSARY

• CHANGE THE BENSHAW , INC., RediStart

MICRO SOFTWARE CONFIGURATION IF NECESSARY

• VERIFY VFD CONFIGURATION AND CHANGE

PARAMETERS IF NECESSARY

• VFD CHILLER FIELD SET UP AND VERIFICATION

• VFD CONTROL VERIFICATION (Non-Running)

• VFD CONTROL VERIFICATION (Running)

• CONFIGURE DIFFUSER CONTROL IF

NECESSARY

• MODIFY EQUIPMENT CONFIGURATION

IF NECESSARY

Perform a Control Test . . . . . . . . . . . . . . . . . . . . . . . . . . 62

• COOLER CONDENSER PRESSURE TRANSDUCER

AND WATERSIDE FLOW DEVICE CALIBRATION

Check Optional Pumpout System

Controls and Compressor. . . . . . . . . . . . . . . . . . . . . 63

High Altitude Locations . . . . . . . . . . . . . . . . . . . . . . . . . 63

Charge Refrigerant Into Chiller . . . . . . . . . . . . . . . . . . 63

• CHILLER EQUALIZATION WITHOUT A

PUMPOUT UNIT

• CHILLER EQUALIZATION WITH

PUMPOUT UNIT

• TRIMMING REFRIGERANT CHARGE

INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64-66

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Dry Run to Test Start-Up Sequence . . . . . . . . . . . . . 65

Check Motor Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Check Oil Pressure and Compressor Stop . . . . . . 65

To Prevent Accidental Start-Up. . . . . . . . . . . . . . . . . . 65

Check Chiller Operating Condition . . . . . . . . . . . . . . 65

Instruct the Customer Operator . . . . . . . . . . . . . . . . . 65

•COOLER-CONDENSER

• OPTIONAL PUMPOUT STORAGE TANK AND

PUMPOUT SYSTEM

• MOTOR COMPRESSOR ASSEMBLY

Page

• MOTOR COMPRESSOR LUBRICATION SYSTEM

• CONTROL SYSTEM

• AUXILIARY EQUIPMENT

• DESCRIBE CHILLER CYCLES

• REVIEW MAINTENANCE

• SAFETY DEVICES AND PROCEDURES

• CHECK OPERATOR KNOWLEDGE

• REVIEW THE START-UP, OPERATION, AND MAINTENANCE MANUAL

OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . .66,67

Operator Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Prepare the Chiller for Start-Up . . . . . . . . . . . . . . . . . 66

To Start the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Check the Running System . . . . . . . . . . . . . . . . . . . . . 66

To Stop the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

After Limited Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 66

Preparation for Extended Shutdown . . . . . . . . . . . . 66

After Extended Shutdown. . . . . . . . . . . . . . . . . . . . . . . 67

Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . . . . 67

Manual Guide Vane Operation. . . . . . . . . . . . . . . . . . . 67

Refrigeration Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

PUMPOUT AND REFRIGERANT TRANSFER

PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67-71

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Operating the Optional Pumpout Unit . . . . . . . . . . . 67

• TO READ REFRIGERANT PRESSURES

Chillers with Storage Tanks . . . . . . . . . . . . . . . . . . . . . 69

• TRANSFER REFRIGERANT FROM

PUMPOUT STORAGE TANK TO CHILLER

• TRANSFER REFRIGERANT FROM

CHILLER TO PUMPOUT STORAGE TANK

Chillers with Isolation Valves. . . . . . . . . . . . . . . . . . . . 70

• TRANSFER ALL REFRIGERANT TO

CHILLER CONDENSER VESSEL

• TRANSFER ALL REFRIGERANT TO

CHILLER COOLER VESSEL

• RETURN CHILLER TO NORMAL

OPERATING CONDITIONS

GENERAL MAINTENANCE . . . . . . . . . . . . . . . . . . . .71,72

Refrigerant Properties . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Adding Refrigerant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Removing Refrigerant. . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Adjusting the Refrigerant Charge . . . . . . . . . . . . . . . 71

Refrigerant Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . 71

Leak Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Test After Service, Repair, or Major Leak . . . . . . . . 71

• TESTING WITH REFRIGERANT TRACER

• TESTING WITHOUT REFRIGERANT TRACER

• TO PRESSURIZE WITH DRY NITROGEN

Repair the Leak, Retest, and Apply

Standing Vacuum Test . . . . . . . . . . . . . . . . . . . . . . . . 72

Checking Guide Vane Linkage . . . . . . . . . . . . . . . . . . 72

Trim Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . . . . 72

WEEKLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 72

Check the Lubrication System . . . . . . . . . . . . . . . . . . 72

SCHEDULED MAINTENANCE . . . . . . . . . . . . . . . . 73-75

Service Ontime. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Inspect the Control Panel . . . . . . . . . . . . . . . . . . . . . . . 73

Check Safety and Operating Controls

Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Changing Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Oil Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Oil Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

• TO CHANGE THE OIL

Refrigerant Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Oil Reclaim Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Inspect Refrigerant Float System . . . . . . . . . . . . . . . 74

CONTENTS (cont)

Page

Inspect Relief Valves and Piping. . . . . . . . . . . . . . . . . 74

Compressor Bearing and Gear

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Inspect the Heat Exchanger Tubes

and Flow Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

• COOLER AND FLOW DEVICES

• CONDENSER AND FLOW DEVICES

Water Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Inspect the Starting Equipment. . . . . . . . . . . . . . . . . . 75

Check Pressure Transducers . . . . . . . . . . . . . . . . . . . . 75

Optional Pumpout System Maintenance. . . . . . . . . 75

• OPTIONAL PUMPOUT COMPRESSOR OIL CHARGE

• OPTIONAL PUMPOUT SAFETY CONTROL SETTINGS

Ordering Replacement Chiller Parts . . . . . . . . . . . . . 75

TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . 76-122

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Checking Display Messages. . . . . . . . . . . . . . . . . . . . . 76

Checking Temperature Sensors . . . . . . . . . . . . . . . . . 76

• RESISTANCE CHECK

• VOLTAGE DROP

• CHECK SENSOR ACCURACY

• DUAL TEMPERATURE SENSORS

Checking Pressure Transducers. . . . . . . . . . . . . . . . . 76

• UNITS EQUIPPED WITH CVC

• UNITS EQUIPPED WITH ICVC

• TRANSDUCER REPLACEMENT

Control Algorithms Checkout Procedure . . . . . . . . 77

Control Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Control Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

• RED LED (Labeled as STAT)

• GREEN LED (Labeled as COM)

Notes on Module Operation . . . . . . . . . . . . . . . . . . . . . 87

Chiller Control Module (CCM) . . . . . . . . . . . . . . . . . . . 88

• INPUTS

• OUTPUTS

Integrated Starter Module . . . . . . . . . . . . . . . . . . . . . . . 88

• INPUTS

• OUTPUTS

Replacing Defective Processor Modules . . . . . . . . 88

• INSTALLATION

Solid-State Starters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

• TESTING SILICON CONTROL RECTIFIERS IN BENSHAW, INC. SOLID-STATE STARTERS

• SCR REMOVAL/INSTALLATION

Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123,124

INITIAL START-UP CHECKLIST FOR

19XR, XRV HERMETIC CENTRIFUGAL

LIQUID CHILLER . . . . . . . . . . . . . . . . . . . .CL-1 to CL-16

INTRODUCTION

Prior to initial start-up of the 19XR unit, those involved in

the start-up, operation, and maintenance should be thoroughly familiar with these instructions and other necessary job data. This book is outlined to familiarize those involved in the startup, operation and maintenance of the unit with the control system before performing start-up procedures. Procedures in this manual are arranged in the sequence required for proper chiller start-up and operation.

This unit uses a microprocessor control system. Do not short or jumper between terminations on circuit boards or modules; control or board failure may result.

Be aware of electrostatic discharge (static electricity) when handling or making contact with circuit boards or module connections. Always touch a chassis (grounded) part to dissipate body electrostatic charge before working inside control center.

Use extreme care when handling tools near boards and when connecting or disconnecting terminal plugs. Circuit boards can easily be damaged. Always hold boards by the edges and avoid touching components and connections.

This equipment uses, and can radiate, radio frequency energy. If not installed and used in accordance with the instruction manual, it may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interfer ence when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.

Always store and transport replacement or defective boards in anti-static shipping bag.

ABBREVIATIONS AND EXPLANATIONS

Frequently used abbreviations in this manual include:

CCM — Chiller Control Module CCN — Carrier Comfort Network CCW — Counterclockwise CVC — Chiller Visual Controller CW — Clockwise ECDW — Entering Condenser Water ECW — Entering Chilled Water EMS — Energy Management System HGBP — Hot Gas Bypass I/O — Input/Output ICVC — International Chiller Visual Controller ISM — Integrated Starter Module LCD — Liquid Crystal Display LCDW — Leaving Condenser Water LCW — Leaving Chilled Water LED — Light-Emitting Diode OLTA — Overload Trip Amps PIC II — Product Integrated Controls II RLA — Rated Load Amps SCR — Silicon Controlled Rectifier SI — International System of Units TXV — Thermostatic Expansion Valve VFD — Variable Frequency Drive

Words printed in all capital letters or in italics may be viewed on the Chiller Visual Controller/International Chiller Visual Controller (CVC/ICVC) (e.g., LOCAL, CCN, ALARM, etc.).

Words printed in both all capital lette rs and italics can also be viewed on the CVC/ICVC and are parameters (e.g., CON-

TROL MODE, COMPRESSOR START RELAY, ICE BUILD OPTION, etc.) with associated values (e.g., modes, tempera-

tures, percentages, pressures, on, off, etc.).

Words printed in all capital letters and in a box represent softkeys on the CVC/ICVC control panel (e.g., ,

, , , etc.).

EXIT INCREASE QUIT

ENTER

Factory-installed additional components are referred to as options in this manual; factory-supplied but field-installed additional components are referred to as accessories.

The chiller software part number of the 19XR unit is located on the back of the CVC/ICVC.

CHILLER FAMILIARIZATION

(Fig. 1 and 2)

Chiller Information Nameplate —

nameplate is located on the right side of the chiller control panel.

System Components —

cooler and condenser heat exchangers in separate vessels, motor-compressor, lubrication package, control panel, and motor starter. All connections from pressure vessels have external threads to enable each component to be pressure tested with a threaded pipe cap during factory assembly.

Cooler —

cated underneath the compressor. The cooler is maintained at lower temperature/pressure so evaporating refrigerant can remove heat from water flowing through its internal tubes.

Condenser —

temperature/pressure than the cooler and has water flowing

This vessel (also known as the evaporator) is lo-

The condenser operates at a higher

19XR- — High Efficiency Hermetic

Centrifugal Liquid Chiller

19XRV — High Efficiency Hermetic

Cooler Size

10-12 (Frame 1 XR) 15-17 (Frame 1 XR) 20-22 (Frame 2 XR) 30-32 (Frame 3 XR) 35-37 (Frame 3 XR) 40-42 (Frame 4 XR) 45-47 (Frame 4 XR) 50-52 (Frame 5 XR) 5A (Frame 5 XR) 5B (Frame 5 XR) 5C (Frame 5 XR)

Condenser Size

10-12 (Frame 1 XR) 15-17 (Frame 1 XR) 20-22 (Frame 2 XR) 30-32 (Frame 3 XR) 35-37 (Frame 3 XR) 40-42 (Frame 4 XR) 45-47 (Frame 4 XR) 50-52 (Frame 5 XR) 55-57 (Frame 5 XR) 60-62 (Frame 6 XR) 65-67 (Frame 6 XR) 70-72 (Frame 7 XR) 75-77 (Frame 7 XR) 80-82 (Frame 8 XR) 85-87 (Frame 8 XR)

Compressor Code

(First Digit Indicates Compressor Frame Size)*

Centrifugal Liquid Chiller with Variable Frequency Drive Unit-Mounted

*Second digit will be a letter (example 4G3) on units equipped with split ring diffuser.

The components include the

55-57 (Frame 5 XR) 5F (Frame 5 XR) 5G (Frame 5 XR) 5H (Frame 5 XR) 60-62 (Frame 6 XR) 65-67 (Frame 6 XR) 70-72 (Frame 7 XR) 75-77 (Frame 7 XR) 80-82 (Frame 8 XR) 85-87 (Frame 8 XR)

The information

19XRV 52 51 473 DG H 64 –

MODEL NUMBER NOMENCLATURE

through its internal tubes in order to remove heat from the refrigerant.

Motor-Compressor —

This component maintains system temperature and pressure differences and moves th e heatcarrying refrigerant from the cooler to the condenser.

Control Panel —

The control panel is the user interface for controlling the chiller. It regulates the chiller’s capacity as required to maintain proper leaving chille d water temperature . The control panel:

• registers cooler, condenser, and lubricating system

pressures

• shows chiller operating condition and alarm shutdown

conditions

• records the total chiller operating hours

• sequences chiller start, stop, and recy cle under micro pro-

cessor control

• displays status of motor starter

• provides access to other CCN (Carrier Comfort Net-

work) devices and energy management systems

• Languages pre-installed at factory include: English, Chi-

nese, Japa nese, and Kor ean (ICVC onl y).

• International language translator (ILT) is available for

conversion of extended ASCII characters (ICVC only).

Special Order Indicator

– — Standard S — Special Order

Motor Voltage Code

Code Volts-Phase-Hertz

60 — 200-3-60 61 — 230-3-60 62 — 380-3-60 63 — 416-3-60 64 — 460-3-60 65 — 575-3-60 66 — 2400-3-60 67 — 3300-3-60 68 — 4160-3-60 69 — 6900-3-60 50 — 230-3-50 51 — 346-3-50 52 — 400-3-50 53 — 3000-3-50 54 — 3300-3-50 55 — 6300-3-50

Motor Efficiency Code

H — High Efficiency S — Standard Efficiency

Motor Code

BD CD DB EH BE CE DC EJ BF CL DD EK BG CM DE EL BH CN DF EM

CP DG EN CQ DH EP

27 99 Q 59843

Week of Year

Year of Manufacture

SERIAL NUMBER BREAKDOWN

Fig. 1 — 19XR Identification

Unique Number

Place of Manufacture

FRONT VIEW

LEGEND

1 — Guide Vane Actuator 2 — Suction Elbow 3 — Chiller Visual Controller/ International Chiller

Visual Control (CVC/ICVC)

4 — Chiller Identification Nameplate 5 — Cooler, Auto Reset Relief Valves 6 — Cooler Pressure Transducer 7 — Condenser In/Out Temperature Thermistors 8 — Condenser Waterflow Device (ICVC Inputs

available)

9 — Cooler In/Out Temperature Thermistors

10 — Cooler Waterflow Device (ICVC Inputs avail-

able)

11 — Refrigerant Charging Valve 12 — Typical Flange Connection

13 — Oil Drain Charging Valve 14 — Oil Level Sight Glasses 15 — Refrigerant Oil Cooler (Hidden) 16 — Auxiliary Power Panel 17 — Compressor Motor Housing

REAR VIEW

19 20 21 22

LEGEND

18 — Condenser Auto. Reset Relief Valves

19 — Compressor Motor Circuit Breaker 20 — Solid-State Starter Control Display 21 — Unit-Mounted Starter (Optional)

Solid-State Starter Shown

22 — Motor Sight Glass 23 — Cooler Return-End Waterbox Cover 24 — ASME Nameplate (One Hidden) 25 — Typical Waterbox Drain Port 26 — Condenser Return-End Waterbox Cover 27 — Refrigerant Moisture/Flow Indicator 28 — Refrigerant Filter/Drier 29 — Liquid Line Isolation Valve (Optional) 30 — Linear Float Valve Chamber 31 — Vessel Take-Apart Connector 32 — Discharge Isolation Valve (Optional) 33 — Pumpout Valve 34 — Condenser Pressure Transducer

Fig. 2 — Typical 19XR Components

Factory-Mounted Starter or Variable Frequency Drive (Optional) —

proper start and disconnect of electrical energy for the compressor-motor, oil pump, oil heater, and control panel.

Storage Vessel (Optional) —

storage vessels available. The vessels have double relief valves, a magnetically-coupled dial-type refrigerant level gage, a one-inch FPT drain valve, and a nection for the pumpout unit.

NOTE: If a storage vessel is not used at the jobsite, factoryinstalled isolation valves on the chiller may be used to isolate the chiller charge in either the cooler or condenser. An optional pumpout system is used to transfer refrigerant from vessel to vessel.

The starter allows for the

There are 2 sizes of

/2-in. male flare vapor con-

REFRIGERATION CYCLE

The compressor continuously draws refrigerant vapor from the cooler at a rate set by the amount of guide vane opening or compressor speed (19XRV only). As the compressor suction reduces the pressure in the cooler, the remaining refrigerant boils at a fairly low temperature (typically 38 to 42 F [3 to 6 C]). The energy required for boiling is obtained from the water flowing through the cooler tubes. With heat energy removed, the water becomes cold enough to use in an air condi tioning circuit or for process liquid cooling.

After taking heat from the water, the refrigerant vapor is compressed. Compression adds still more heat energy, and the

refrigerant is quite warm (typically 98 to 102 F [37 to 40 C]) when it is discharged from the compressor into the condenser.

Relatively cool (typically 65 to 90 F [18 to 32 C]) water flowing into the condenser tubes removes heat from the refrigerant and the vapor condenses to liquid.

The liquid refrigerant passes through orifices into the FLASC (Flash Subcooler) chamber (Fig. 3). Since the FLASC chamber is at a lower pressure, part of t he liquid refrigerant flashes to vapor, thereby cooling the remaining liquid. The FLASC vapor is recondensed on the tubes which are cooled by entering condenser water. The liquid drains into a float chamber between the FLASC chamber and cooler. Here a float valve forms a liquid seal to keep FLASC chamber vapor from entering the cooler. When liquid refrigerant passes through the valve, some of it flashes to vapor in the reduced pressure on the cooler side. In flashing, it removes heat from the remaining liquid. The refrigerant is now at a temperature and pressure at which the cycle began.

MOTOR AND LUBRICATING OIL

COOLING CYCLE

The motor and the lubricating oil are cooled by liquid refrigerant taken from the bottom of the condenser vessel (Fig. 3). Refrigerant flow is maintained by the pressure di fferential that exists due to compressor operation. After the refrigerant flows past an isolation valve, an in-line filter, and a sight glass/moisture indicator, the flow is split between the motor cooling and oil cooling systems.

Fig. 3 — Refrigerant Motor Cooling and Oil Cooling Cycles

Flow to the motor cooling system passes through an orifice and into the motor. Once past the orifice, the refrigerant is directed over the motor by a spray nozzle. The refrigerant collects in the b ottom of the motor c asing and is then drai ned back into the cooler through the motor refrigerant drain line . An orifice (in t he motor shell) maintains a higher pressure i n the motor she ll tha n in t he coo ler. The motor is pr otect ed by a temperature sensor imbedded in the stator windings. An increase in motor winding temperature past the motor override set point overrides the temperature capacity control to hold, and if the motor temperature rises 10° F (5.5° C) above this set point, closes the inlet guide vanes. If the temperature rises above the safety limit, the compressor shuts down.

Refrigerant that flows to the oil cooling system is regulated by thermostatic expansion valves (TXVs). The TXV s regulat e flow into the oil/refrigerant plate and frame-type heat exchanger (the oil cooler in Fig. 3). The expansion valve bulbs control oil temperature to the bearings. The refrigerant leaving the oil cooler heat exchanger returns to the chiller cooler.

VFD COOLING CYCLE

The unit-mounted variable frequency drive (VFD) is cooled in a manner similar to the motor and lubricating oil cooling cycle (Fig. 3).

If equipped with a unit-mounted VFD, t he refrigerant line that feeds the motor cooling and oil cooler also feeds the heat exchanger on the unit-mounted VFD. Refrigerant is metered through a thermostatic expansion valve (TXV). To maintain proper operating temperature in the VFD, the TXV bulb is mounted to the heat exchanger to regulate the flow of refrigerant. The refrigerant leaving the heat exchanger returns to the cooler.

LUBRICATION CYCLE

Summary —

up a package located partially in the transmission casing of the compressor-motor assembly. The oil is pumped into a filter assembly to remove foreign particles and is then forced into an oil cooler heat exchanger where the oil is cooled to proper operational temperatures. After the oil cooler, part of the flow is directed to the gears and the high speed shaft bearings; the remaining flow is directed to the motor shaft bearings. Oil drains into the transmission oil sump to complete the cycle (Fig. 4).

Details —

a hand valve. Two sight glasses in the oil reservoir permit oil level observation. Normal oil level is between the middle of the upper sight glass and the top of the lower sight glass when the compressor is shut down. The oil level should be visible in at least one of the 2 sight glasses during operation. Oil sump temperature is displayed on the CVC/ICVC (Chiller Visual Controller/International Chiller Visual Controller) default screen. During compressor operation, the oil sump temperature ranges between 125 to 150 F (52 to 66 C).

The oil pump suction is fed from the oil reservoir. An oil pressure relief valve maintains 18 to 25 psid (124 to172 kPad) differential pressure in the system at the pump di scharge. This differential pressure can be read directly from the CVC/ICVC default screen. The oil pump discharges oil to the oil filter assembly. This filter can be closed to permit removal of the filter without draining the entire oil system (see Maintenance sections, pages 71 to 75, for details). The oil is then piped to the oil

The oil pump, oil filter, and oil cooler make

Oil is charged into the lubrication system through

cooler heat exchanger. The oil cooler uses refrigerant from the condenser as the coolant. The refrigerant cools the oil to a temperature between 120 and 140 F (49 to 60 C).

As the oil leaves the oil cooler, it passes the oil pressure transducer and the thermal bulb for the refrigerant expansion valve on the oil cooler. The oil is then divided. Part of the oil flows to the thrust bearing, forward pinion bearing, and gear spray. The rest of the oil lubricates the motor shaft bearings and the rear pinion bearing. The oil temperature is measured in the bearing housing as it leaves the thrust and forward journal bearings. The oil then drains into the oil reservoir at the base of the compressor. The PIC II (Product Integrated Control II) measures the temperature of the oil in the sump and maintains the temperature during shutdown (see Oil Sump Temperature Control section, page 36). This temperature is read on the CVC/ICVC default screen.

During the chiller start-up, the PIC II energizes the oil pump and provides 45 seconds of pre-lubrication to the bearings after pressure is verified before starting the compressor. During shutdown, the oil pump will run for 60 seconds to postlubricate after the compressor shuts down. The oil pump can also be energized for testing purposes during a Control Test.

Ramp loading can slow the rate of guide vane opening to minimize oil foaming at start-up. If the guide vanes open quickly, the sudden drop in suction pressure can cause any refrigerant in the oil to flash. The resulting oil foam cannot be pumped efficiently; therefore, oil pressure falls off and lubrication is poor. If oil pressure falls below 15 psid (103 kPad) differential, the PIC II will shut down the compressor.

If the controls are subject to a power failure that lasts more than 3 hours, the oil pump will be energized periodically when the power is restored. This helps to eliminate refrigerant that has migrated to the oil sump during the power failure. The controls energize the pump for 60 seconds every 30 minutes until the chiller is star ted.

Oil Reclaim System —

oil lost from the compressor housing back to the oil reservoir by recovering the oil from 2 areas on the chiller. The guide vane housing is the primary area of recovery. Oil is also recovered by skimming it from the operating refrigerant level i n the cooler vessel.

PRIMARY OIL RECOVERY MODE — Oil is normally recovered through the guide vane housing on the chiller. This is possible because oil is normally entrained with refrigerant in the chiller. As the compressor pulls the refrigerant up from the cooler into the guide vane housing to be compressed, the oil normally drops out at this point and falls to the bottom of the guide vane housing where it accumulates. Using discharge gas pressure to power an eductor, the oil is drawn from the housing and is discharged into the oil reservoir.

SECONDARY OIL RECOVERY METHOD — The secondary method of oil recovery is significant under light load conditions, when the refrigerant going up to the compressor suction does not have enough velocity to bring oil along. Under these conditions, oil collects in a greater concentration a t the top level of the refrigerant in the cooler. This oil and refrigerant mixture is skimmed from the side of the cooler and is then drawn up to the guide vane housing. There is a filter in this line. Because the guide vane housing pressure is much lower than the cooler pressure, the refrigerant boils off, leaving t he oil behind to be collected by the primary oil recovery method.

The oil reclaim system returns

MOTOR COOLING LINE

TXV BULB PRESSURE

TRANSDUCER

REAR MOTOR BEARING

ISOLATION VALV E

OIL COOLER

OIL PUMP MOTOR

OIL PUMP

OIL HEATER

SIGHT GLASS

FWD MOTOR BEARING

LABYRINTH GAS LINE

FILTEREDUCTOR

OIL SUPPLY TO FORWARD HIGH SPEED BEARING

ISOLATION VALV E

FILTER

SIGHT GLASS

ISOLATION VALV E

Fig. 4 — Lubrication System

STARTING EQUIPMENT

The 19XR requires a motor starter to operate the centrifugal hermetic compressor motor, the oil pump, and various auxiliary equipment. The starter is the main field wiring interface for the contractor.

See Carrier Specification Z-415 for specific starter requirements, Z-416 for free-standing VFD requirements and Z-417 for unit-mounted VFD requirements. All starters must meet these specifications in order to properly start and satisfy mechanical safety requirements. Starters may be supplied as separate, free-standing units or may be mounted directly on the chiller (unit mounted) for low voltage units only.

Three separate circuit breakers are inside the starter. Circuit breaker CB1 is the compress or motor circui t breaker. The disconnect switch on the starter front cover is connected to this breaker. Circuit breaker CB1 supplies pow er to the compressor motor.

The main circuit breaker (CB1) on the front of the starter disconnects the main motor current only. Power is still energized for the other circuits. Two more circuit breakers inside the starter must be turned off to disconnect power to the oil pump, PIC II controls, and oil heater.

OIL SKIMMER LINE

solid-state starters. This module controls and monitors all aspects of the starter. See the Controls section on page 10 for additional ISM information. All starter replacement parts are supplied by the starter manufacturer excluding t he ISM (contact Carrier’s Replacement Component Division [RCD]).

Unit-Mounted Solid-State Starter (Optional) —

The 19XR chiller may be equipped with a solid-state, reducedvoltage starter (Fig. 5 and 6). This starter’s primary function is to provide on-off control of the compressor motor. This type of starter reduces the peak starting torque, reduces the m otor inrush current, and decreases mechanical shock. This capability is summed up by the phrase “soft starting.” The solid-state starter is available as a 19XR option (factory supplied and installed). The solid-state starters manufa cturer name is located inside the starter access door.

A solid-state, reduced-voltage starter operates by reducing the starting voltage. The starting torque of a motor at full voltage is typically 125% to 175% of the running torque. When the voltage and the current are reduced at start-up, the starting torque is reduced as well. The object is to reduce the starting voltage to just the voltage necessary to develop the torque required to get the motor moving. The voltage is reduced by silicon controlled rectifiers (SCRs). The voltage and current are then ramped up in a desired period of time. Once full voltage is reached, a bypass contactor is energized to bypass the SCRs.

Circuit breaker CB2 supplies power to the control panel, oil

heater, and portions of the starter controls.

Circuit breaker CB3 supplies power to the oil pump. Both CB2 and CB3 are wired in parallel with CB1 so that power is supplied to them if the CB1 disconnect is open.

All starters must include a Carrier control module called the Integrated Starter Module (ISM), excluding the Benshaw

When voltage is supplied to the solid-state circuitry (CB1 is closed), the heat sinks in the starter a s well as the wires leading to the m otor an d the m otor term in al ar e at l ine vol tage. Do not touch the heat sinks, power wiring, or motor terminals while voltage is present or serious injury will result.

LEGEND

1 — RediStar t MICRO™ Input/Output Card 2 — Fuses 1-4 (Hidden, not depicted) 3 — Circuit Breaker 2 (CB2): Machine Control and Heater Power 4 — Circuit Breaker 3 (CB3): Oil Pump Power 5 — RediStar t MICRO Central Processing Unit Card (CPU) 6 — RediStar t MICRO Power Card (hidden, not depicted) 7 — RediStar t MICRO Bypass Card (hidden, not depicted)

Fig. 5 — Solid-State Starter Box,

Internal View

There is a display on the front of the Benshaw, Inc., solidstate starters that is useful for troubleshooting and starter checkout. The display indicates:

• voltage to the SCRs

• SCR control voltage

• power indication

• proper phasing for rotation

• start circuit energized

• over-temperature

• ground fault

• current unbalance

• run state

• software configurat ion

The starter is further explained in the Check Starter and Troubleshooting Guide sections, pages 54 and 76.

Unit-Mounted Wye-Delta Starter (Optional) —

The 19XR chiller may be equipped with a wye-delta starter mounted on the unit. This starter is used with low-voltage motors (under 600 v). It reduces the starting current inrush by connecting each phase of the motor windings into a wye configuration. This occurs during the starting period when the motor is accelerating up to speed. Once the motor is up to speed, the starter automatically connects the phase windings into a delta configuration. Starter control, monitoring, and motor protection is provided by Carrier’s Integrated Starter Module (ISM).

Unit-Mounted VFD (Optional) —

will be equipped with a variable frequency drive motor controller mounted on the unit. See Fig. 7 and 8. This VFD is used with low voltage motors between 380 and 480 VAC. It reduces the starting current inrush by controlling the volta ge and frequency to the compressor motor. Once the motor has accelerated to minimum speed the PIC II modulates the compressor speed and guide vane position to control chilled water temperature. The VFD is further explained in the Controls sect ion and Troubleshooting Guide section, pages 10 and 76.

There is a separate display located on the unit-mounted VFD. Operational parameters and fault codes are displayed relative to the drive. Refer to specific drive literature along with troubleshooting sections. The display is also the interface for entering specific chiller operational parameters. These parameters have been preprogrammed at the factory. An adhesive backed label on the inside of the drive has been provided for verification of the specific job parameters. See Initi al Start-Up Checklist section for details.

The 19XRV uni t

Fig. 6 — Typical Starter External View

(Solid-State Starter Shown)

CONTROLS

Definitions

ANALOG SIGNAL — An analog signal varies in proportion to the monitored source. It quantifies values between operating limits. (Example: A temperature sensor is an analog device because its resistance changes in proportion to the temperature, generating many values.)

DISCRETE SIGNAL — A discrete signal is a 2-position rep- resentation of the value of a monitored source. (Example: A switch produces a discrete signal indicating whether a value is above or below a set point or boundary by generating an on/off, high/low , or open/closed s ignal.)

OPTIONAL METER PACKAGE

INTEGRATED STARTER MODULE (ISM)

OIL PUMP DISCONNECT

Forward

AUTO

RUNNING

SPEED

Reverse

MAN

REMOTE

VOLTS

JOG

RUN

AMPS

PRO-

AUTO

JOB

GRAM

FORWARD

REVERSE

TORQUE

ENTER

PROGRAM

Password

Fig. 7 — Variable Frequency Drive (VFD)

SPEED

VOLTS AMPS

Kw TORQUE

Password

MANUAL RESET

RUNNING

REMOTE

JOG AUTO

FORWARD REVERSE

PROGRAM

AUTO

MAN

PROGRAM

ENTER

DC BUS BAR

MEASUREMENT

POINT

INITIAL DC BUS MEASUREMENT POINT

Forward Reverse

RUN JOB

DANGER

HIGH VOLTAGE

CONTROL AND OIL HEATER DISCONNECT

COMPRESSOR MOTOR DISCONNECT

LINE

LOAD

TXV

Fig. 8 — Variable Frequency Drive (VFD) Starter Internal View

General —

The 19XR hermetic centrifugal liquid chiller contains a microprocessor-based control center t hat monitors and controls all operations of the chiller (see Fig. 9). The microprocessor control system matches the cooling capacity of the chiller to the cooling load while providing state-of-the-art chiller protection. The system controls cooling load within the set point plus the deadband by sensing the leaving chilled wat er or brine temperature and regulating the inlet guide vane via a mechanically linked actuator motor. The guide vane is a variable flow pre-whirl assembly that controls the refri geration effect in the cooler by regulating the amount of refrigerant vapor flow into the compressor. An increase in guide vane opening increases capacity. A decrease in guide vane opening decreases capacity. The microprocessor-based control center protects the chiller by monitoring the digital and analog inputs and executing capacity overrides or safety shutdowns, if required.

Forward

AUTO

RUNNING

SPEED

Reverse

MAN

REMOTE

VOLTS

JOG

RUN

AMPS

PROGRAM

AUTO

JOB

FORWARD

REVERSE

TORQUE

ENTER

PROGRAM

Password

VFD MODULE

COOLING LINES

PIC II System Components —

The chiller control system is called the PIC II (Product Integrated Control II). See Table 1. The PIC II controls the operation of the chiller by monitoring all operating conditions. The PIC II can diagnose a problem and let the operator know what the problem is and what to check. It promptly positions the guide vanes to maintain leaving chilled water temperature. It can interface with auxiliary equipment such as pumps and cooling tower fans to turn them on when required. It continually checks all safeties to prevent any unsafe operating condition. It also regulates the oil heater while the compressor is off and regulates the hot gas bypass valve, if installed. The PIC II controls provide critical protection for the compressor motor and controls the motor starter.

WATER SENSOR CABLES

COOLER PRESSURE TRANSDUCER CONNECTION

FITTING (HIDDEN) PANEL ACTUATOR CABLE PANEL CABLE

WATER SENSOR CABLES

CONDENSER PRESSURE CABLE

SCHRADER FITTING (HIDDEN) CONDENSER PRESSURE TRANSDUCER CONNECTION

CONDENSER SERVICE VALV E

TOP VIEW

DISCHARGE ISOLATION VALV E (OPTIONAL)

COMPRESSOR DISCHARGE ELBOW JOINTS

MOTOR WINDING TEMPERATURE CABLE

COMPRESSOR DETAIL

Fig. 9 — 19XR Controls and Sensor Locations

The PIC II can interface with t he Carri er Comfort N etwork (CCN) if desired. It can communicate with other PIC I or PIC II equipped chillers and other CCN devices.

The PIC II consists of 3 modules housed inside 3 major components. The component names and corresponding control voltages are listed below (also see Table 1):

• control panel

— all extra low-voltage wiring (24 v or less)

• power panel

— 230 or 115 v contro l voltage (per job requirement)

— up to 600 v for oil pump power

• starter cabinet

— chiller power wiring (per job requirement)

Table 1 — Major PIC II Components and

Panel Locations*

PIC II COMPONENT PANEL LOCATION

Chiller Visual Controller (CVC/ICVC) and Display

Integrated Starter Module (ISM) Starter Cabinet Chiller Control Module (CCM) Control Panel Oil Heater Contactor (1C) Power Panel Oil Pump Contactor (2C) Power Panel Hot Gas Bypass Relay (3C) (Optional) Power Panel Control Transformers (T1, T2) Power Panel Temperature Sensors See Fig. 9. Pressure Transducers See Fig. 9.

*See Fig. 8-13.

Control Panel

CHILLER VISUAL CONTROLLER (CVC) — The CVC is the “brain” of the PIC II. This module contains all the operating software needed to control the chiller. The CVC is mounted to the control panel (Fig. 12) and is the input ce nter for all local chiller set points, schedules, configurable functions, and options. The CVC has a stop button, an alarm light, four buttons for logic inputs, and a backlight display. The backlight will automatically turn off after 15 minutes of non-use. The functions of the four buttons or “softkeys” are menu driven and are shown on the display directly above the softkeys.

The viewing angle of the CVC can be adjusted for optimum viewing. Remove the 2 bolts connecting the control panel to the brackets attached to the c ooler. Place them in one of t he holes to pivot the control panel forward to backward to change the viewing angle. See Fig. 12. To change the contrast of the display, access the adjustm ent on the back of the CVC. See Fig. 12.

INTERNATIONAL CHILLER VISUAL CONTROLLER (ICVC) — Incorporates all of the functions and operating software of the CVC with the added feature of 4 factory programmed languages:

English (default)

Chinese

Japanese

Korean NOTE: Pressing any one of the four softkey buttons will acti-

vate the backlight display without implementing a softkey function.

INTEGRATED STARTER MODULE (ISM) — This module is located in the starter cabinet. This module initiates commands from the CVC/ICVC for starter functions such as start ing and stopping the compressor, condenser, chilled water pumps, tower fan, spare alarm contacts, and the shunt trip. The ISM monitors starter inputs such as line voltage, motor current,

ground fault, remote start contact, spare safety, condenser high pressure, oil pump interlock, starter 1M, and run contacts. The ISM contains logic capable of safety shutdown. It shuts down the chiller if communications with the CVC/ICVC are lost. The ISM can also act as the interface for P IC II to the VFD controller.

CHILLER CONTROL MODULE (CCM) — This module is located in the control panel. The CCM provides t he input and outputs necessary to control the chiller. This module monitors refrigerant pressure, entering and leaving water temperatures, and outputs control for the guide vane actuator, oil heaters, and oil pump. The CCM is the connect ion point for optional demand limit, chilled water reset, remote temperature reset, refrigerant leak sensor and motor kilowatt output.

OIL HEATER CONTACTOR (1C) — This contactor is located in the power panel (Fig. 13) and operates the heater at either 115 or 230 v. It is controlled by the PIC II to maintain oil temperature during chiller shutdown. The XR4 with split ring diffuser has a line voltage oil heater. Refer to the control panel wiring schematic.

OIL PUMP CONTACTOR (2C) — This contactor is located in the power panel. It operates all 200 to 575-v oil pumps. The PIC II energizes the contactor to turn on the oil pump as necessary.

HOT GAS BYPASS CONTACTOR RELAY (3C) (Optional) — This relay, located in the power panel, controls the opening of the hot gas bypass valve. The PIC II ene rgizes the relay during low load, high lift conditions.

CONTROL TRANSFORMERS (T1, T2) — These transformers convert incoming control voltage to 24 vac power for the 3 power panel contactor relays, CCM, and CVC/ICVC.

OP TI ONAL TRAN SFOR ME R (T3) — Thi s transformer provides control power to Dataport™/DataLINK™ modules.

Fig. 10 — Control Sensors (Temperature)

Fig. 11 — Control Sensors

(Pressure Transducers, Typical)

Fig. 12 — Control Panel

Fig. 13 — Power Panel

CVC/ICVC Operation and Menus (Fig. 14-20)

GENERAL

• The CVC/ICVC display automatically reverts to the

default screen after 15 minutes if no softkey activity

takes place and if the chiller is not in the pumpdown

mode (Fig. 14).

• If a screen other than the default screen is displayed on

the CVC/ICVC, the name of that screen is in the upper

right corner (Fig. 15).

• The CVC/ICVC may be set to display either English or

SI units. Use the CVC/ICVC configuration screen

(accessed from the Service menu) to change the units.

See the Service Operation section, page 45.

• Local Operation — The PIC II can be placed in local

operating mode by pressing the softkey. The

PIC II then accepts commands from the CVC/ICVC only

and uses the Local Time Schedule to determine chiller

start and stop times.

• CCN Operation — The PIC II can be placed in the CCN

operating mode by pressing the softkey. The PIC

II then accepts modifications from any CCN interface or

module (with the proper authority), as well as from the

CVC/ICVC. The PIC II uses the CCN time schedule to

determine start and stop times. ALARMS AND ALERTS — An alarm shuts down the com-

pressor. An alert does not shut down the compressor, but it notifies the operator that an unusual c ondition has occurred. An alarm (*) or alert (!) is indicated on the ST ATUS screens on the far right field of the CVC/ICVC display screen.

Alarms are indicated when the control center ala rm light (!) flashes. The primary alarm message is displayed on the default screen. An additional, secondary message and troubleshooting information are sent to the ALARM HISTORY table.

When an alarm is detected, the CV C/ICVC default screen will freeze (stop updating) at the time of alarm. The freeze enables the operator to view th e chiller conditions at t he time of alarm. The STATUS tables will show the updated information.

Once all alarms have been cleared (by pressing the softkey), the default CVC/ICVC screen will return to normal operation.

CVC/ICVC MENU ITEMS — To perform any of the operations described below , the PIC II must be powered up and have successfully completed its s elf t est. The self test t akes pla ce automatically, after power-up.

Press the softkey to view the list of menu structures: , , , and

SERVICE

ST ATUS SCHEDULE SETPOINT

• The STATUS menu allows viewing and limited calibra-

tion or modification of control points and sensors, relays

and contacts, and the options board.

• The SCHEDULE menu allows viewing and mod ification

of the local and CCN time schedules and Ice Build time

schedules.

• The SETPOI NT menu allo ws s et poin t adj us tment s , su ch

as the entering chilled water and leaving chilled water set

points.

• The SERVICE menu can be used to view or modify

information on the Alarm History, Control Test, Control

Algorithm Status, Equipment Configuration, ISM Starter

Configuration data, Equipment Service, Time and Date,

Attach to Network Device, Log Out of Network Device,

and CVC/ICVC Configuration screens.

LOCAL

CCN

RESET

For more information on the menu structures, refer to

PRIMARY STATUS

Fig. 17.

SECONDARY STATUS MESSAGE

ALARM LIGHT (ILLUMINATED WHEN POWER ON)

•

STOP BUTTON

•

MESSAGE

BLINKS CONTINUOUSLY ON FOR AN ALARM

BLINKS ONCE TO CONFIRM A STOP

HOLD FOR ONE SECOND TO STOP

COMPRESSOR ON TIME

RUNNING TEMP CONTROL LEAVING CHILLED WATER

CHW IN CHW OUT EVAP REF

55.1 44.1 40.7

CDW IN CDW OUT COND REF

85.0 95.0 98.1

OIL PRESS OIL TEMP AMPS %

21.8 132.9 93

CCN LOCAL RESET MENU

SOFT KEYS

EACH KEY'S FUNCTION IS DEFINED BY THE MENU DESCRIPTION ON MENU LINE ABOVE

DATE TIME

01-01-95 11:48

28.8 HOURS

MENU LINE

Fig. 14 — CVC/ICVC Default Screen

19XR_II

ALARM HISTORY

CONTROL TEST CONTROL ALGORITHM STATUS EQUIPMENT CONFIGURATION ISM (STARTER) CONFIGURATION DATA EQUIPMENT SERVICE TIME AND DATE ATTACH TO NETWORK DEVICE LOG OUT OF DEVICE CVC CONFIGURATION

SERVICE

Fig. 15 — CVC/ICVC Service Screen

Press the softkey that corresponds to the menu structure to

be viewed: , , or

SERVICE menu structures, use the and softkeys to scroll down to the desired item or table. Use the

ST ATUS SCHEDULE SETPOINT

. To view or change parameters within any of these

NEXT PREVIOUS

SELECT softkey to select that item. The softkey choices that then appear depend on the selected table or menu. The softkey choices and their functions are described below.

BASIC CVC/ICVC OPERATIONS (Using the Softkeys) — To perform any of the operations described below, the PIC II must be powered up and have successfully completed its self test.

• Press to leave the selected decision or field with-

QUIT

out saving any changes.

• Press to leave the selected decision or field and

ENTER

save changes.

• Press to scroll the cursor bar down in order to

NEXT highlight a point or to view more points belo w the current screen.

2. Press or to highlight the desired

NEXT PREVIOUS

status table. The list of tables is:

•MAINSTAT — Overall chiller status

•STARTUP — Status r equired to perfor m start-up of

chiller

•COMPRESS — Status of sensors related to the compressor

•HEAT_EX — Status of sensors related to the heat exchangers

•POWER — Status of motor input power

•ISM_STAT — Stat us of motor starter

•CVC_PSWD — Service menu password forcing

access screen

•ICVC_PSWD — Service menu password forcing access screen

• Press to scroll the cursor bar up in order to

PREVIOUS highlight a point or to view points above the current screen.

• Press to view the next screen level (high-

SELECT lighted with the cursor bar), or to override (if allowable) the highlighted point value.

• Press to return to the previous screen level.

• Press or to change the high-

EXIT

INCREASE DECREASE

lighted point value.

3. Press to view the desired point status table.

4. On the point status table, press or

SELECT

NEXT PREVIOUS

until the desired point is displayed on the screen.

19XR_II MAINSTAT Control Mode Run Status Start Inhibit Timer Occupied? System Alert/Alarm Chiller Start/Stop Remote Start Contact Temperature Reset Control Point Chilled Water Temp Active Demand Limit Average Line Current

POINT STATUS

OFF

Ready

0.0 Min NO

NORMAL

STOP

Open

0.0 F

44.0 F

44.6 F 100%

0.0%

TO VIEW STATUS (Fig. 16) — The status table shows the actual value of overall chiller status such as CONTROL MODE, RUN STATUS, AUTO CHILLED WATER RESET, and REMOTE RESET SENSOR.

1. On the menu screen, press to view the list of

ST ATUS

point status tables.

Fig. 16 — Example of Status Screen

OVERRIDE OPERATIONS To Override a Value or Status

1. From any point status screen, press or PREVIOUS

2. Press to select the highlighted value. Then:

SELECT

to highlight the desired value.

•

CCN

Start Chiller In CCN Control

Start Chiller in Local Control

DEFAULT SCREEN

LOCAL RESET

(SOFTKEYS)

Clear Alarms

STATUS

List the Status Tables

• MAINSTAT

• STARTUP

• COMPRESS

• HEAT_EX

• POWER

• ISM_STAT

• CVC_PSWD

Select a Status Table

Select a Modification Point

Modify a Discrete Point

START

Modify an Analog Point

INCREASE

Modify Control Options

ENABLE

STOP

OFF

DECREASE

DISABLE

Access Main Menu

SCHEDULE SETPOINT

SELECT

RELEASE

QUIT

EXIT

ENTER

SERVICE

(ENTER A 4-DIGIT PASSWORD) (VALUES SHOWN AT FACTORY DEFAULT)

Display The Setpoint Table

List the Schedules

• LCW Setpoint

• ECW Setpoint

• Ice Build Setpoint

Select the Setpoint

Modify the Setpoint

INCREASE

• OCCPC01S – LOCAL TIME SCHEDULE

• OCCPC02S – ICE BUILD TIME SCHEDULE

• OCCPC03S – CCN TIME SCHEDULE

Select a Schedule

Select a Time Period/Override

Modify a Schedule Time

INCREASE DECREASE ENTER EXIT

Add/Eliminate a Day

ENABLE DISABLE

SELECT

1 2 3 4 5 6 7 8

Override

SELECT

ENTER EXIT

• Tower Fan High Setpoint

DECREASE

EXIT

•

Base Demand Limit

SELECT

QUIT

(ANALOG VALUES)

(DISCRETE VALUES)

List the Service Tables

EXIT

ENTER

ALARM HISTORY CONTROL TEST CONTROL ALGORITHM STATUS EQUIPMENT CONFIGURATION ISM (STARTER) CONFIG DATA EQUIPMENT SERVICE TIME AND DATE ATTACH TO NETWORK DEVICE LOG OUT OF DEVICE CVC CONFIGURATION ICVC CONFIGURATION

SEE FIGURE 18

Fig. 17 — 19XR Chiller Display Menu Structure (CVC/ICVC)

SELECT

EXIT

SERVICE TABLE

•

ALARM HISTORY

CONTROL TEST

CONTROL ALGORITHM STATUS

List the Control Algorithm Status Tables

• CAPACITY (Capacity Control)

• OVERRIDE (Override Status)

• LL_MAINT (Lead Lag Status)

• ISM_HIST (ISM Alarm History)

• LOADSHED

• WSMDEFME (Water System Manager Control Status)

• OCCDEFCM (Time Schedule Status)

Select a Table

SELECT

Display Alarm History

(The table holds up to 25 alarms and alerts with the most recent alarm at the top of the screen.)

EXIT

SELECT

EXIT

List the Control Tests

Select a Test

• CCM Thermistors

• CCM Pressure Transducers

• Pumps

• Discrete Outputs

• Guide Vane Actuator

• Diffuser Actuator

• Pumpdown/Lockout

• Terminate Lockout

• Guide Vane Calibration

SELECT

EXIT

OCCDEFM (Time Schedule Status)

Data Select Table

EQUIPMENT CONFIGURATION List the Equipment Configuration Tables

CONTINUED ON NEXT PAGE

INCREASE DECREASE ENTER EXIT

ICVC CONFIGURATION

SELECT

OCCPC01S (Local Status) OCCPC02S (CCN, ICE BUILD Status) OCCPC03S (CCN Status)

EXIT

Select a Table

Select a Parameter

Modify a Parameter

INCREASE

SELECT (USE ENTER) TO SCROLL DOWN

LID LANGUAGE

ENABLE

• CAPACITY (Capacity Control Algorithm)

• OVERRIDE (Override Status)

• LL_MAINT (LEADLAG Status)

• WSMDEFM2 (Water System Manager Control Status)

Maintenance Table Data

• NET_OPT

• BRODEF

• OCCEFCS

• HOLIDAYS

• CONSUME

• RUNTIME

DISABLE

SELECT

EXIT

SELECT

QUIT

DECREASE

EXIT

ENTER

(ANALOG VALUES)

(DISCRETE VALUES)

Fig. 18 — 19XR Service Menu Structure

SERVICE MENU CONTINUED FROM PREVIOUS PAGE

EQUIPMENT SERVICE

ISM (STARTER) CONFIG DATA

Service Tables:

• OPTIONS

• SETUP1

• SETUP2

• LEADLAG

• RAMP_DEM

• TEMP_CTL

(ENTER A 4-DIGIT PASSWORD)

(VALUES SHOWN AT FACTORY DEFAULT)

Service Tables:

• ISM (STARTER) CONFIG PASSWORD

• ISM_CONF

Select a Service Table

Select a Service Table Parameter

Modify a Service Table Parameter

INCREASE

ENABLE

TIME AND DATE

ATTACH TO NETWORK DEVICE

Select a Device

Modify Device Address

INCREASE

• Use to attach CVC to another CCN network or device

• Attach to "LOCAL" to enter this machine

• To upload new tables

LOG OUT OF DEVICE

DECREASE

DISABLE

List Network Devices

• Local

• Device 1

• Device 2

• Device 3

• Device 4

• Device 5

DECREASE

SELECT

QUIT

• Device 6

• Device 7

• Device 8

• Device 9

SELECT

ENTER

EXIT

ENTER

ATTA CH

EXIT

(ANALOG VALUES)

(DISCRETE VALUES)

Display Time and Date Table:

• To Modify — Current Time — Day of Week

INCREASE

YES

DECREASE

— Current Date — Holiday Today

EXIT

ENTER

(ANALOG VALUE)

(DISCRETE VALUE)

CVC CONFIGURATION

LEGEND

CCN — Carrier Comfort Network CVC — Chiller Visual Controller ICVC — International Chiller Visual Controller ISM — Integrated Starter Module PIC II — Product Integrated Control II

Fig. 18 — 19XR Service Menu Structure (cont)

Default Screen

CCN

CVC Configuration Table

INCREASE

• To Modify — CVC CCN Address

LOCAL

DECREASE

— English (U.S. IMP.) or S.I. Metric Units — Password

RESET

ENTER

EXIT

• To View — CVC Software Version (last 2 digits of part number

indicate software version)

For Discrete Points — Press or to se- lect the desired state.

ST ART

STOP

OCCPC02S — ICE BUILD Time Schedule OCCPC03S — CCN Time Schedule

For Analog Points — Press or

DECREASE

3. Press to register the new value.

NOTE: When overriding or changing metric values, it is necessary to hold down the softkey for a few seconds in order to see a value change, especially on kilopascal values.

To Remove an Override

1. On the point status table pre ss or

2. Press to access the highlighted value.

ENTER

to highlight the desired value.

to select the desired value.

NEXT PREVIOUS

SELECT

INCREASE

3. Press to view the desired time schedule.

4. Press or to highlight the desired

5. Press to access the highlighted period or

6. a. Press or to change the

SELECT

NEXT PREVIOUS

period or override to change.

SELECT

override.

INCREASE DECREASE time values. Override values are in one-hour increments, up to 4 hours.

3. Pres s to remove the override and return the

Override Indication “SUPVSR,” “SERVC,” or “BEST” flashing next to the point value on the ST ATUS table.

TIME SCHEDULE OPERATION (Fig. 19)

1. On the Menu screen, press .

2. Press or to highlight the desired

RELEASE

point to the PIC II’s automatic control.

— An override value is indicated by

SCHEDULE

NEXT PREVIOUS

schedule. OCCPC01S — LOCAL Time Schedule

b. Press to select days in the day-of-week

ENABLE fields. Press to eliminate days from the period.

Fig. 19 — Example of Time Schedule

DISABLE

Operation Screen

7. Press t o register the values and to move hori-

ENTER

zontally (left to right) within a period.

8. Press to leave the period or override.

EXIT

9. Either return to Step 4 to select another period or override, or press again to leave the current time

EXIT

schedule screen and save the changes.

10. The Holiday Designation (HOLIDEF table) may be found in the Service Operation section, page 45. The month, day, and duration for the holiday must be assigned. The Broadcast function in the BRODEF table also must be enabled for holiday periods to function.

TO VIEW AND CHANGE SET POINTS (Fig. 20)

1. To view the SETPOINT table, from the MENU screen press .

SETPOINT

2. There are 5 set points on this screen: BASE DEMAND LIMIT, LCW SETPOINT (leaving chilled water set point), ECW SETPOINT (entering chilled water set point), ICE BUILD SETPOINT, and TOWER FAN HIGH SETPOINT. Only one of the chilled water set points can be active at one time. The set point that is active is determined from the SERVICE menu. See the Service Operation section, page 45. The ice build (ICE BUILD) function is also activated and configured from the SER VICE menu.

3. Press or to highlight the desired

NEXT PREVIOUS

set point entry.

4. Press to modify the highlighted set point.

5. Press or to change the select-

SELECT

INCREASE DECREASE

ed set point value.

6. Press t o save the c hanges and return to the pre-

ENTER

vious screen.

19XR_II

SETPOINT

Base Demand Limit

Control Point LCW Setpoint ECW Setpoint ICE BUILD Setpoint Tower Fan High Setpoint

SETPOINT SELECT

100%

50.0 F

60.0 F

40.0 F

85.0 F

Fig. 20 — Example of Set Point Screen

SERVICE OPERATION — To view the menu-driven programs available for Service Operation, see S ervice Operation section, page 45. For examples of CVC/ICVC display screens, see Table 2.

Table 2 — CVC/ICVC Display Data

IMPORTANT: The following notes apply to all Table 2 examples.

1. Only 12 lines of information appear on the chiller display screen at any one time. Press the or softkey to highlight a point or to view items below or above the current screen. Press the softkey twice to page forward; press the softkey twice to page back.

2. To access the information shown in Examples 10 through 22, enter your 4-digit password after pressing the softkey. If no softkeys are pressed for 15 minutes, the CVC/ICVC automatically logs off (to prevent unrestricted access to PIC II controls) and reverts to the default screen. If this happens, you must re-enter your password to access the tables shown in Examples 10 through 22.

3. Terms in the Description column of these tables are listed as they appear on the chiller display screen.

4. The CVC/ICVC may be configured in English or Metric (SI) units using the CVC/ICVC CONFIGURATION screen. See the Service Operation section, page 45, for instructions on making this change.

5. The items in the Reference Point Name column do not appear on the chiller display screen. They are data or variable names used in CCN or Building Supervisor (BS) software. They are listed in these tables as a convenience to the operator if it is necessary to cross reference CCN/BS documentation or use CCN/BS programs. For more information, see the 19XR CCN literature.

NEXT PREVIOUS

SERVICE

6. Reference Point Names shown in these tables in all capital letters can be read by CCN and BS software. Of these capitalized names, those preceded by a dagger can also be changed (that is, written to) by the CCN, BS, and the CVC/ICVC. Capitalized Reference Point Names preceded by two asterisks can be changed only from the CVC/ICVC. Reference Point Names in lower case type can be viewed by CCN or BS only by viewing the whole table.

7. Alarms and Alerts: An asterisk in the far right field of a CVC/ ICVC status screen indicates that the chiller is in an alarm state; an exclamation point in the far right field of the CVC/ICVC screen indicates an alert state. The asterisk (or exclamation point) indicates that the value on that line has exceeded (or is approaching) a limit. For more information on alarms and alerts, see the Alarms and Alerts section, page 15.

LEGEND

CCN — Carrier Comfort Network CHW — Chilled Water CHWR — Chilled Water Return CHWS — Chilled Water Supply CVC — Chiller Visual Controller CT — Current Transformer ECW — Entering Chilled Water HGBP — Hot Gas Bypass ICVC — International Chiller Visual Controller ISM — Integrated Starter Module LCW — Leaving Chilled Water LRA — Locked Rotor Amps mA — Milliamps P — Pressure PIC II — Product Integrated Controls II SS — Solid State T — Temperature VFD — Variable Frequency Drive WSM — Water System Manager

EXAMPLE 1 — CHILLER DISPLAY DEFAULT SCREEN

The following data is displayed in the Default screen.

DESCRIPTION STATUS UNITS

(PRIMARY MESSAGE) (SECONDARY MESSAGE) (DATE AND TIME)

Compressor Ontime 0-500000.0 HOURS C_HRS Entering Chilled Water –40-245 DEG F ECW CHW IN Leaving Chilled Water –40-245 DEG F LCW CHW OUT Evaporator Temperature –40-245 DEG F ERT EVAP REF Entering Condenser Water –40-245 DEG F ECDW CDW IN Leaving Condenser Water –40-245 DEG F LCDW CDW OUT Condenser Temperature –40-245 DEG F CRT COND REF Oil Pressure 0-420 PSI OILPD OILPRESS Oil Sump Temp 40-245 DEG F OILT OIL TEMP Average Line Current 0-999 % AMPS_% AMPS%

NOTE: The last three entries are used to indicate operating mode to the PIC II. These values may be forced by the CVC/ICVC only.

0-1 CCN 0-1 LOCAL 0-1 RESET

REFERENCE POINT NAME

(ALARM HISTORY)

DISPLAY

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 2 — MAINTSTAT DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press ( will be highlighted).

3. Press .

*Chiller Start/Stop 0/1 STOP/START CHIL_S_S *Remote Start Contact 0/1 OPEN/CLOSE REMCON

*Control Point 10-120 DEG F LCW_STPT

*Active Demand Limit 40-100 % DEM_LIM

*Service Ontime 0-32767 HOURS S_HRS

NOTES:

1. Reset, Off, Local, CCN

2. Timeout, Ready, Recycle, Prestart, Start-up, Ramping, Running, Demand, Override, Shutdown, Trippout, Pumpdown, Lockout

3. Normal, Alert, Alarm

4. All variables with capital letter point names are available for CCN read operation. Those shown with (*) support write operations for all CCN

STATUS MAINSTAT

SELECT

Control Mode NOTE 1 NOTE 1 MODE Run Status NOTE 2 NOTE 2 STATUS Start Inhibit Timer 0-15 min T_START Occupied? 0/1 NO/YES OCC System Alert/Alarm 0-2 NOTE 3 SYS_ALM

Temperature Reset –30-30 DEG F T_RESET

Chilled Water Temp –40-245 DEG F CHW_TMP

Average Line Current 0-999 % %_AMPS Motor Percent Kilowatts 0-999 % KW_P Auto Demand Limit Input 4-20 mA AUTODEM Auto Chilled Water Reset 4-20 mA AUTORES Remote Reset Sensor –40-245 DEG F R_RESET Total Compressor Starts 0-99999 c_starts Starts in 12 Hours 0-8 STARTS Compressor Ontime 0-500000.0 HOURS c_hrs

Ice Build Contact 0-1 OPEN/CLOSE ICE_CON Refrigerant Leak Sensor 0-20 mA REF_LEAK

devices.

DESCRIPTION STATUS UNITS POINT

EXAMPLE 3 — STARTUP DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

**Chilled Water Pump 0-1 OFF/ON CHWP

**Condenser Water Pump 0-1 OFF/ON CDP

**Oil Pump Delta P –6.7-200 ^PSI OILPD

**Tower Fan Relay Low 0-1 OFF/ON TFR_LOW **Tower Fan Relay High 0-1 OFF/ON TFR_HIGH

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write operations for the CVC/ICVC only.

STATUS

STARTUP

SELECT

DESCRIPTION STATUS UNITS POINT

Actual Guide Vane Pos 0-100 % GV_ACT

Chilled Water Flow 0-1 NO/YES CHW_FLOW

Condenser Water Flow 0-1 NO/YES CDW_FLOW Oil Pump Relay 0-1 OFF/ON OILR

Compressor Start Relay 0-1 OFF/ON CMPR Compressor Start Contact 0-1 OPEN/CLOSED CR_AUX Starter Trans Relay 0-1 OFF/ON CMPTRANS Compressor Run Contact 0-1 OPEN/CLOSED RUN_AUX

Starter Fault 0-1 ALARM/NORMAL STR_FLT Spare Safety Input 0-1 ALARM/NORMAL SAFETY Shunt Trip Relay 0-1 OFF/ON TRIPR ISM Fault Status 0-255 STRSTAT

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 4 — COMPRESS DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

**Target Guide Vane Pos 0-100 % GV_TRG

**Oil Pump Delta P –6.7-200 ^PSI OILPD

**Target VFD Speed 0-100 % VFD_OUT **Actual VFD Speed 0-110 % VFD_ACT

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write operations for the CVC/ICVC only.

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

**Chilled Water Delta P –6.7-420 PSI CHW_PD

**Evaporator Pressure –6.7-420 PSI ERP

**Condenser Water Delta P –6.7-420 PSI COND_PD

**Condenser Pressure –6.7-420 PSI CRP

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write operations for the CVC/ICVC only.

STATUS

COMPRESS

SELECT

Actual Guide Vane Pos 0-100 % GV_ACT Guide Vane Delta 0-100 % GV_DELTA

Oil Sump Temp –40-245 DEG F OILT

Comp Discharge Temp –40-245 DEG F CMPD Comp Thrust Brg Temp –40-245 DEG F MTRB Comp Motor Winding Temp –40-245 DEG F MTRW Spare Temperature 1 –40-245 DEG F SPARE1 Spare Temperature 2 –40-245 DEG F SPARE2 Oil Heater Relay 0/1 OFF/ON OILH Diffuser Actuator 0-100 % DIFF_ACT

Surge Protection Counts 0-5 SPC

Entering Chilled Water –40-245 DEG F ECW Leaving Chilled Water –40-245 DEG F LCW Chilled Water Delta T –6.7-420 ^F CHW_DT Chill Water Pulldown/Min –20-20 ^F CHW_PULL Evaporator Refrig Temp –40-245 DEG F ERT

Evaporator Approach 0-99 ^F EVAP_APP

Entering Condenser Water –40-245 DEG F ECDW Leaving Condenser Water –40-245 DEG F LCDW Condenser Refrig Temp –40-245 DEG F CRT

Condenser Approach 0-99 ^F COND_APP Hot Gas Bypass Relay 0/1 OFF/ON HGBR Surge / HGBP Active? 0/1 NO/YES SHG_ACT Active Delta P 0-200 PSI dp_a Active Delta T 0-200 DEG F dt_a Surge / HGBP Delta T 0-200 DEG F dt_c Head Pressure Reference 0-100 % hpr Evaporator Saturation Temp (ICVC only)

DESCRIPTION STATUS UNITS POINT

EXAMPLE 5 — HEAT_EX DISPLAY SCREEN

STATUS

HEAT_EX

SELECT

DESCRIPTION STATUS UNITS POINT

–40-245 ^F EST

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 6 — POWER DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

**Motor Kilowatt-Hours 0-99999 kWH KWH

NOTES:

1. All variables with CAPITAL LETTER point names are available for CCN read operation.

2. Those shown with (**) shall support write operations for CVC/ICVC only.

STATUS

POWER

SELECT

DESCRIPTION STATUS UNITS POINT

Average Line Current 0-999 % %_AMPS Actual Line Current 0-99999 AMPS AMP_A Average Line Voltage 0-999 % VOLT_P Actual Line Voltage 0-99999 VOLTS VOLT_A Power Factor 0.0-1.0 PF Motor Kilowatts 0-99999 kW KW_A

Demand Kilowatts 0-99999 kWH DEM_KWH Line Current Phase 1 0-99999 AMPS AMPS_1 Line Current Phase 2 0-99999 AMPS AMPS_2 Line Current Phase 3 0-99999 AMPS AMPS_3 Line Voltage Phase 1 0-99999 VOLTS VOLTS_1 Line Voltage Phase 2 0-99999 VOLTS VOLTS_2 Line Voltage Phase 3 0-99999 VOLTS VOLTS_3 Ground Fault Phase 1 0-999 AMPS GF_1 Ground Fault Phase 2 0-999 AMPS GF_2 Ground Fault Phase 3 0-999 AMPS GF_3 Frequency 0-99 Hz FREQ I2T Sum Heat-Phase 1 0-200 % HEAT1SUM I2T Sum Heat-Phase 2 0-200 % HEAT2SUM I2T Sum Heat-Phase 3 0-200 % HEAT3SUM

EXAMPLE 7 — ISM_STAT DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

ISM Fault Status 0-223 ISMFLT Single Cycle Dropout 0-1 NORMAL/ALARM CYCLE_1 Phase Loss 0-1 NORMAL/ALARM PH_LOSS Overvoltage 0-1 NORMAL/ALARM OV_VOLT Undervoltage 0-1 NORMAL/ALARM UN_VOLT Current Imbalance 0-1 NORMAL/ALARM AMP_UNB Voltage Imbalance 0-1 NORMAL/ALARM VOLT_UNB Overload Trip 0-1 NORMAL/ALARM OVERLOAD Locked Rotor Trip 0-1 NORMAL/ALARM LRATRIP Starter LRA Trip 0-1 NORMAL/ALARM SLRATRIP Ground Fault 0-1 NORMAL/ALARM GRND_FLT Phase Reversal 0-1 NORMAL/ALARM PH_REV Frequency Out of Range 0-1 NORMAL/ALARM FREQFLT ISM Power on Reset 0-1 NORMAL/ALARM ISM_POR Phase 1 Fault 0-1 NORMAL/ALARM PHASE_1 Phase 2 Fault 0-1 NORMAL/ALARM PHASE_2 Phase 3 Fault 0-1 NORMAL/ALARM PHASE_3 1CR Start Complete 0-1 FALSE/TRUE START_OK 1M Start/Run Fault 0-1 NORMAL/ALARM 1M_FLT 2M Start/Run Fault 0-1 NORMAL/ALARM 2M_FLT Pressure Trip Contact 0-1 NORMAL/ALARM PRS_RIP Starter Fault 0-1 NORMAL/ALARM STRT_FLT Motor Amps Not Sensed 0-1 NORMAL/ALARM NO_AMPS Starter Acceleration Fault 0-1 NORMAL/ALARM ACCELFLT High Motor Amps 0-1 NORMAL/ALARM HIGHAMPS 1CR Stop Complete 0-1 FALSE/TRUE STOP_OK 1M/2M Stop Fault 0-1 NORMAL/ALARM 1M2MSTOP Motor Amps When Stopped 0-1 NORMAL/ALARM AMPSTOP Hardware Failure 0-1 NORMAL/ALARM HARDWARE

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation.

STATUS

ISM_STAT

SELECT

DESCRIPTION STATUS UNITS POINT

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 8 — CVC/ICVC_PSWD DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .or

4. Press .

**Remote Reset Option 0-1 DSABLE/ENABLE RESETOPT

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write operations for the CVC/ICVC only.

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Press .

Base Demand Limit 40-100 % DLM 100 Control Point

Ice Build Setpoint 15-60 DEG F ice_sp 40.0 Tower Fan High Setpoint 55-105 DEG F tf2_sp 75

NOTE: All variables are available for CCN read operation; forcing shall not be supported on setpoint screens.

STATUS

CVC

SELECT

Disable Service Password 0-1 DSABLE/ENABLE PSWD_DIS

Reset Alarm? 0-1 NO/YES REMRESET CCN Mode? 0-1 NO/YES REM_CCN

ECW Setpoint 15-120 DEG F ecw_sp 60.0 LCW Setpoint 10-120 DEG F lcw_sp 50.0

DESCRIPTION STATUS UNITS POINT

SETPOINT

SELECT

DESCRIPTION STATUS UNITS POINT DEFAULT

ICVC

EXAMPLE 9 — SETPOINT DISPLAY SCREEN

EXAMPLE 10 — CAPACITY DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

Entering Chilled Water –40-245 DEG F ECW Leaving Chilled Water –40-245 DEG F LCW Capacity Control

Target Guide Vane Pos 0-100 % GV_TRG Actual Guide Vane Pos 0-100 % GV_ACT Target VFD Speed 0-100 % VFD_IN Actual VFD Speed 0-100 % VFD_ACT VFD Gain 0.1-1.5 vfd_gain Demand Limit Inhibit 0-100 % DEM_INH Amps/kW Ramp 0-100 % DMD_RAMP VFD Load Factor 0-200 VFD_LF

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screen.

SERVICE

CONTROL ALGORITHM STATUS

SELECT

CAPACITY

SELECT

DESCRIPTION STATUS UNITS POINT

Control Point 10-120 DEG F ctrlpt Control Point Error –99-99 ^F cperr ECW Delta T –99-99 ^F ecwdt ECW Reset –99-99 ^F ecwres LCW Reset –99-99 ^F lcwres Total Error + Resets –99-99 ^F error Guide Vane Delta –2-2 % gvd

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 11 — OVERRIDE DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

Comp Motor Winding Temp –40-245 DEG F MTRW Comp Motor Temp Override 150-200 DEG F mt_over Condenser Pressure 0-420 PSI CRP Cond Press Override 90-180 PSI cp_over Evaporator Refrig Temp –40-245 DEG F ERT Evap Ref Override Temp 2-45 DEG F r t_over Comp Discharge Temp –40-245 DEG F CMPD Comp Discharge Alert 125-200 DEG F cd_alert Comp Thrust Brg Temp –40-245 DEG F MTRB Comp Thrust Brg Alert 165-185 DEG F tb_alert Actual Superheat –20-99 ^F SUPRHEAT Superheat Required 6-99 ^F SUPR_REQ Condenser Refrig Temp –40-245 DEG F CRT

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screens.

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight

6. Press .

LeadLag Control

NOTES:

1. DISABLE, LEAD, LAG, STANDBY, INVALID

2. DISABLE, LEAD, LAG, STANDBY, RECOVERY, CONFIG

3. Reset, Off, Local, CCN

4. Timeout, Ready, Recycle, Prestart, Startup, Ramping, Running, Demand, Override, Shutdown, Trippout, Pumpdown, Lockout

5. Stop, Start, Retain

6. All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screens.

SERVICE

CONTROL ALGORITHM STATUS

SELECT

OVERRIDE

SELECT

DESCRIPTION STATUS UNITS POINT

EXAMPLE 12 — LL_MAINT DISPLAY SCREEN

SERVICE

CONTROL ALGORITHM STATUS

SELECT

LL_MAINT.

SELECT

DESCRIPTION STATUS UNITS POINT

LEADLAG: Configuration NOTE 1 leadlag

Current Mode NOTE 2 llmode Load Balance Option 0/1 DSABLE/ENABLE loadbal LAG START Time 2-60 MIN lagstart LAG STOP Time 2-60 MIN lagstop Prestart Fault Time 2-30 MIN preflt Pulldown: Delta T / Min x.xx ^F pull_dt

LEAD CHILLER in Control 0/1 NO/YES leadctrl LAG CHILLER: Mode NOTE 3 lagmode Run Status NOTE 4 lagstat Start/Stop NOTE 5 lag_s_s

STANDBY CHILLER: Mode NOTE 3 stdmode

Spare Temperature 1 –40-245 DEG F SPARE_1 Spare Temperature 2 –40-245 DEG F SPARE_2

Satisfied? 0/1 NO/YES pull_sat

Recovery Start Request 0/1 NO/YES lag_rec

Run Status NOTE 4 stdstat

Start/Stop NOTE 5 Std_s_s

Recovery Start Request 0/1 NO/YES std_rec

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 13 — ISM_HIST DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

ISM FAULT HISTORY Values At Last Fault: Line Current Phase 1 0-99999 AMPS AMPS_1F Line Current Phase 2 0-99999 AMPS AMPS_2F Line Current Phase 3 0-99999 AMPS AMPS_3F Line Voltage Phase 1 0-99999 VOLTS VOLTS_1F Line Voltage Phase 2 0-99999 VOLTS VOLTS_2F Line Voltage Phase 3 0-99999 VOLTS VOLTS_3F Ground Fault Phase 1 0-999 AMPS GF_1F Ground Fault Phase 2 0-999 AMPS GF_2F Ground Fault Phase 3 0-999 AMPS GF_3F I2T Sum Heat-Phase 1 0-200 % HEAT1SUMF I2T Sum Heat-Phase 2 0-200 % HEAT2SUMF I2T Sum Heat-Phase 3 0-200 % HEAT3SUMF Phase 1 Faulted? 0/1 NO/YES PH1_FLT Phase 2 Faulted? 0/1 NO/YES PH2_FLT Phase 3 Faulted? 0/1 NO/YES PH3_FLT Line Frequency 0-99 Hz FREQ_ F ISM Fault Status 0-9999 ISM_STAT

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screens.

SERVICE

CONTROL ALGORITHM STATUS

SELECT

ISM_HIST

SELECT

DESCRIPTION STATUS UNITS POINT

EXAMPLE 14 — WSMDEFME DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

WSM Active? 0/1 NO/YES WSMSTAT Chilled Water Temp 0.0-99.9 DEG F CHWTEMP

Equipment Status 0/1 OFF/ON CHLRST Commanded State XXXXXXXX TEXT CHLRENA

CHW setpt Reset Value 0.0-25.0 DEG F CHWRVAL Current CHW Set Point 0.0-99.9 DEG F CHWSTPT

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screens.

SERVICE

CONTROL ALGORITHM STATUS

SELECT

WSMDEFME

SELECT

DESCRIPTION STATUS UNITS POINT

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 15 — NET_OPT DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

Loadshed Function Group Number 0-99 ldsgrp 0 Demand Limit Decrease 0-60 % ldsdelta 20 Maximum Loadshed Time 0-120 MIN maxldstm 60

CCN Occupancy Config: Schedule Number 3-99 occpcxxe 3 Broadcast Option 0-1 DSABLE/ENABLE occbrcst DSABLE

Alarm Configuration Re-Alarm Time 0-1440 MIN 30 Alarm Routing 0-1 10000000

NOTE: No variables are available for CCN read or write operation.

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Enter password (4444 Factory Default).

6. Scroll down to highlight .

7. Press .

Starter Type 0-2 starter 1 (0 = Full, 1 = Red, 2 = SS/VFD) Motor Rated Line Voltage 200-13200 VOLTS v_fs 460 Volt Transformer Ratio:1 1-35 vt_rat 1 Overvoltage Threshold 105-115 % overvolt 115 Undervoltage Threshold 85-95 % undvolt 85 Over/Under Volt Time 1-10 SEC uvuntime 5 Voltage % Imbalance 1-10 % v_unbal 10 Voltage Imbalance Time 1-10 SEC v_time 5 Motor Rated Load Amps 10-5000 AMPS a_fs 200 Motor Locked Rotor Trip 100-60000 AMPS motor_lr 1000 Locked Rotor Start Delay 1-10 cycles lrdelay 5 Starter LRA Rating 100-60000 AMPS start_lr 2000 Motor Current CT Ratio:1 3-1000 ct_turns 100 Current % Imbalance 5-40 % c_unbal 15 Current Imbalance Time 1-10 SEC c_time 5 Grnd Fault CT’s? 0-1 NO/YES gf_phase YES Ground Fault CT Ratio:1 150 gf_ctr 150 Ground Fault Current 1-25 AMPS gf_amps 15 Ground Fault Start Delay 1-20 cycles gf_delay 10 Ground Fault Persistence 1-10 cycles gf_pers 5 Single Cycle Dropout 0/1 DSABLE/ENABLE cycdrop DSABLE Frequency = 60 Hz? (No = 50) 0/1 NO/YES freq YES Line Frequency Faulting 0/1 DSABLE/ENABLE freq_en DSABLE

SERVICE

EQUIPMENT CONFIGURATION

SELECT

NET_OPT

SELECT

DESCRIPTION STATUS UNITS POINT DEFAULT

EXAMPLE 16 — ISM_CONF DISPLAY SCREEN

SERVICE

ISM (STARTER) CONFIG DATA

SELECT

ISM_CONF

SELECT

DESCRIPTION STATUS UNITS POINT DEFAULT

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 17 — OPTIONS DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

Auto Restart Option 0/1 DSABLE/ENABLE start DSABLE Remote Contacts Option 0/1 DSABLE/ENABLE r_contact DSABLE Soft Stop Amps Threshold 40-100 % softstop 100

Surge / Hot Gas Bypass

Surge Protection

Ice Build Control

Refrigerant Leak Option 0/1 DSABLE/ENABLE DSABLE Refrigerant Leak Alarm mA 4-20 mA REF_LEAK 20 Head Pressure Reference

SERVICE

EQUIPMENT SERVICE

SELECT

OPTIONS

SELECT

DESCRIPTION STATUS UNITS POINT DEFAULT

Surge Limit/HGBP Option 0/1 srg_hgbp 0 Select: Surge=0, HGBP=1 Min. Load Point (T1,P1) Surge/HGBP Delta T1 0.5-20 ^F hgb_dt1 1.5 Surge/HGBP Delta P1 30-170 PSI hgb_dp1 50 Full Load Point (T2,P2) Surge/HGBP Delta T2 0.5-20 ^F hbg_dt2 10 Surge/HGBP Delta P2 50-170 PSI hgb_dp2 85 Surge/HGBP Deadband 0.5-3 ^F hbg_db 1

Surge Delta% Amps 5-20 % surge_a 10 Surge Time Period 7-10 MIN surge_t 8

Ice Build Option 0/1 DSABLE/ENABLE ibopt DSABLE Ice Build Termination 0-2 ibterm 0 0=Temp, 1=Contacts, 2=Both Ice Build Recycle 0/1 DSABLE/ENABLE ibrecyc DSABLE

Delta P at 0% (4mA) 20-60 PSI HPDPO 25 Delta P at 100% (20mA) 20-60 PSI HPDP100 35 Minimum Output 0-100 % HPDPMIN% 0

NOTE: No variables are available for CCN read or write operation.

EXAMPLE 18 — SETUP1 DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press .

2. Press .

3. Scroll down to highlight .

4. Press .

5. Scroll down to highlight .

6. Press .

Comp Motor Temp Override 150-200 DEG F mt_over 200 Cond Press Override 90-165 PSI cp_over 125 Comp Discharge Alert 125-200 DEG F cd_alert 200 Comp Thrust Brg Alert 165-185 DEG F tb_alert 175

Chilled Medium 0/1 WATER/BRINE medium WATER Chilled Water Deadband .5-2.0 ^F cw _db 1.0 Evap Refrig Trippoint 0.0-40.0 DEG F ert_trip 33 Refrig Override Delta T 2.0-5.0 ^F ref_over 3 Condenser Freeze Point –20 - 35 DEG F cdfreeze 34

Evap Flow Delta P Cutout 0.5 - 50.0 PSI evap_cut 5.0 Cond Flow Delta P Cutout 0.5 - 50.0 PSI cond_cut 5.0 Water Flow Verify Time 0.5-5 MIN wflow_t 5 Oil Pressure Verify Time 15-300 SEC oilpr_t 40 Recycle Control Restart Delta T 2.0-10.0 DEG F rcycr_dt 5 Shutdown Delta T 0.5-4.0 DEG F rcycs_dt 1

SPARE ALERT/ALARM ENABLE Disable=0, Lo=1/3, Hi=2/4

Spare Temp #1 Enable 0-4 sp1_en 0 Spare Temp #1 Limit –40-245 DEG F sp1_lim 245 Spare Temp #2 Enable 0-4 sp2_ en 0 Spare Temp #2 Limit –40-245 DEG F sp2_ lim 245

SERVICE

EQUIPMENT SERVICE

SELECT

SETUP1

SELECT

DESCRIPTION STATUS UNITS POINT DEFAULT

NOTE: No variables are available for CCN read or write operation; forcing shall not be supported on service screens.

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Carrier XRV, EVERGREEN 19XR User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual