Carrier XRV, EVERGREEN 19XR User Manual

4 (1)

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 asphyxiation.

PROVIDE adequate ventilation in accordance with ANSI/ASHRAE 15, especially for enclosed and low overhead spaces. Inhalation of high concentrations of vapor is harmful and may cause heart irregularities, unconsciousness, or death. Misuse can be fatal. Vapor is heavier than air and reduces the amount of oxygen available for breathing. Product causes eye and skin irritation. Decomposition products are hazardous.

DO NOT USE OXYGEN to purge lines or to pressurize a chiller for any purpose. Oxygen gas reacts violently with oil, grease, and other common substances.

NEVER EXCEED specified test pressures, VERIFY the allowable test pressure by checking the instruction literature and the design pressures on the equipment nameplate.

DO NOT USE air for leak testing. Use only refrigerant or dry nitrogen.

DO NOT VALVE OFF any safety device.

BE SURE that all pressure relief devices are properly installed and functioning before operating any 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 terminals.

soap and water. If liquid refrigerant enters the eyes, IMMEDIATELY FLUSH EYES with water and consult a physician.

NEVER APPLY an open flame or live steam to a refrigerant cylinder. Dangerous over pressure can result. When it is necessary to heat refrigerant, use only warm (110 F [43 C]) water.

DO NOT REUSE disposable (nonreturnable) cylinders or attempt to refill them. It is DANGEROUS AND ILLEGAL. When cylinder is emptied, evacuate remaining gas pressure, loosen the collar and unscrew and discard the valve stem. DO NOT INCINERATE.

CHECK THE REFRIGERANT TYPE before adding refrigerant to the 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 operates in a corrosive atmosphere, inspect the devices at more frequent intervals.

DO NOT ATTEMPT TO REPAIR OR RECONDITION any relief device when corrosion or build-up of foreign material (rust, dirt, scale, etc.) is found within the valve body or mechanism. Replace the device.

DO NOT install relief devices in series or backwards.

USE CARE when working near or in line with a compressed spring. Sudden release of the spring can cause it and objects in its path to act as projectiles.

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.

DO NOT WELD OR FLAMECUT any refrigerant line or vessel until all refrigerant (liquid and vapor) has been removed from chiller. Traces of vapor should be displaced with dry air or nitrogen and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases.

DO NOT USE eyebolts or eyebolt holes to rig chiller sections or the entire assembly.

DO NOT work on high-voltage equipment unless you are a qualified electrician.

DO NOT WORK ON electrical components, including control panels, switches, starters, or oil heater until you are sure ALL POWER IS OFF and no residual voltage can leak from capacitors or solid-state components.

LOCK OPEN AND TAG electrical circuits during servicing. IF WORK IS INTERRUPTED, confirm that all circuits are deenergized before resuming work.

AVOID SPILLING liquid refrigerant on skin or getting it into the eyes. USE SAFETY GOGGLES. Wash any spills from the skin with

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 that meet the code requirements of the original equipment.

DO NOT VENT OR DRAIN waterboxes containing industrial brines, liquid, gases, or semisolids without the permission of your process control group.

DO NOT LOOSEN waterbox cover bolts until the waterbox has been completely drained.

DOUBLE-CHECK that coupling nut wrenches, dial indicators, or other items have been removed before rotating any shafts.

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

PC 211

Catalog No. 531-982

Printed in U.S.A.

Form 19XR-5SS

Pg 1

6-01

Replaces: 19XR-4SS

Tab

5a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

Page

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

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 COMMUNICATION 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

2

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

3

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 interference 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 letters and italics can also be viewed on the CVC/ICVC and are parameters (e.g., CONTROL MODE, COMPRESSOR START RELAY, ICE BUILD OPTION, etc.) with associated values (e.g., modes, temperatures, 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., ENTER ,

EXIT , INCREASE , QUIT , etc.).

4

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

System Components — The components include the 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 — This vessel (also known as the evaporator) is located 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 — The condenser operates at a higher temperature/pressure than the cooler and has water flowing

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

Motor-CompressorThis component maintains system temperature and pressure differences and moves the 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 chilled 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 recycle under microprocessor control

displays status of motor starter

provides access to other CCN (Carrier Comfort Network) devices and energy management systems

Languages pre-installed at factory include: English, Chinese, Japanese, and Korean (ICVC only).

International language translator (ILT) is available for conversion of extended ASCII characters (ICVC only).

 

 

 

19XRV 52 51

473

DG H 64 –

 

 

 

 

 

19XR- — High Efficiency Hermetic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Centrifugal Liquid Chiller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19XRV — High Efficiency Hermetic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Centrifugal Liquid Chiller with

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Special Order Indicator

 

Variable Frequency Drive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– — Standard

 

 

 

Unit-Mounted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S — Special Order

 

Cooler Size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor Voltage Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Code Volts-Phase-Hertz

10-12 (Frame 1 XR)

55-57 (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

— 200-3-60

 

15-17 (Frame 1 XR)

5F (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

61

— 230-3-60

 

20-22 (Frame 2 XR)

5G (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

62

— 380-3-60

 

30-32 (Frame 3 XR)

5H (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

63

— 416-3-60

 

35-37 (Frame 3 XR)

60-62 (Frame 6 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64

— 460-3-60

 

40-42 (Frame 4 XR)

65-67 (Frame 6 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

— 575-3-60

 

45-47 (Frame 4 XR)

70-72 (Frame 7 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66

— 2400-3-60

 

50-52 (Frame 5 XR)

75-77 (Frame 7 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

67

— 3300-3-60

 

5A (Frame 5 XR)

80-82 (Frame 8 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

68

— 4160-3-60

 

5B (Frame 5 XR)

85-87 (Frame 8 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

69

— 6900-3-60

 

5C (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

— 230-3-50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51

— 346-3-50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

— 400-3-50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

53

— 3000-3-50

 

Condenser Size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54

— 3300-3-50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55

— 6300-3-50

 

10-12 (Frame 1 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15-17 (Frame 1 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor Efficiency Code

20-22 (Frame 2 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30-32 (Frame 3 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H — High Efficiency

 

35-37 (Frame 3 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S — Standard Efficiency

40-42 (Frame 4 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45-47 (Frame 4 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor Code

 

 

50-52 (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55-57 (Frame 5 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BD

CD

DB

EH

60-62 (Frame 6 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BE

CE

DC

EJ

65-67 (Frame 6 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF

CL

DD

EK

70-72 (Frame 7 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BG

CM

DE

EL

75-77 (Frame 7 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BH

CN

DF

EM

80-82 (Frame 8 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CP

DG

EN

85-87 (Frame 8 XR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CQ

DH

EP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DJ

 

Compressor Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(First Digit Indicates Compressor Frame Size)*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Second digit will be a letter (example 4G3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on units equipped with split ring diffuser.

MODEL NUMBER NOMENCLATURE

 

 

 

 

 

 

 

27 99

Q

59843

 

 

 

 

 

 

 

 

 

 

 

 

 

Week of Year

Year of Manufacture

Unique Number

Place of Manufacture

SERIAL NUMBER BREAKDOWN

Fig. 1 — 19XR Identification

5

FRONT VIEW

1

2

3

4

5

17

6

16

7

8

15 14

13

12

11

9

10

 

LEGEND

1Guide Vane Actuator

2Suction Elbow

3Chiller Visual Controller/ International Chiller Visual Control (CVC/ICVC)

4Chiller Identification Nameplate

5Cooler, Auto Reset Relief Valves

6Cooler Pressure Transducer

7Condenser In/Out Temperature Thermistors

8Condenser Waterflow Device (ICVC Inputs available)

9Cooler In/Out Temperature Thermistors

10Cooler Waterflow Device (ICVC Inputs available)

11Refrigerant Charging Valve

12Typical Flange Connection

13Oil Drain Charging Valve

14Oil Level Sight Glasses

15Refrigerant Oil Cooler (Hidden)

16Auxiliary Power Panel

17Compressor Motor Housing

REAR VIEW

18 19 20 21 22

 

 

 

 

 

 

 

 

LEGEND

34

 

 

 

 

 

 

18

Condenser Auto. Reset Relief Valves

 

 

 

 

 

 

23

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

33

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

32

 

 

28 27

 

 

 

 

 

31

30

29

26

25

24

 

 

Fig. 2 — Typical 19XR Components

6

Factory-Mounted Starter or Variable Frequency Drive (Optional) — The starter allows for the proper start and disconnect of electrical energy for the com- pressor-motor, oil pump, oil heater, and control panel.

Storage Vessel (Optional) — There are 2 sizes of 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 1/2-in. male flare vapor connection 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.

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 conditioning 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 the 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 differential 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

7

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 bottom of the motor casing and is then drained back into the cooler through the motor refrigerant drain line. An orifice (in the motor shell) maintains a higher pressure in the motor shell than in the cooler. The motor is protected 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 TXVs regulate 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, the 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 — The oil pump, oil filter, and oil cooler make 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 — Oil is charged into the lubrication system through 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 discharge. 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

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 started.

Oil Reclaim System — The oil reclaim system returns 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 in 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 at 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 the oil behind to be collected by the primary oil recovery method.

8

REAR MOTOR

FWD MOTOR

OIL SUPPLY TO

BEARING

BEARING

FORWARD HIGH

 

LABYRINTH

SPEED BEARING

 

 

 

GAS LINE

 

MOTOR

COOLING LINE

 

 

 

 

 

ISOLATION

 

 

 

 

 

VALVE

TXV BULB

PRESSURE

ISOLATION

 

OIL

FILTER

 

PUMP

 

 

 

TRANSDUCER

VALVE

 

OIL

SIGHT

 

 

OIL

 

 

 

OIL PUMP

HEATER

GLASS

 

 

COOLER

 

EDUCTOR FILTER

 

 

MOTOR

 

 

 

 

SIGHT GLASS

ISOLATION

 

 

 

 

 

 

 

 

VALVE

OIL SKIMMER LINE

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 compressor motor circuit breaker. The disconnect switch on the starter front cover is connected to this breaker. Circuit breaker CB1 supplies power 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.

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

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 the 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 motor 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 manufacturer 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.

When voltage is supplied to the solid-state circuitry (CB1 is closed), the heat sinks in the starter as well as the wires leading to the motor and the motor terminal are at line voltage. Do not touch the heat sinks, power wiring, or motor terminals while voltage is present or serious injury will result.

9

7

1

2

3

4

6

5

LEGEND

1RediStart MICRO™ Input/Output Card

2Fuses 1-4 (Hidden, not depicted)

3Circuit Breaker 2 (CB2): Machine Control and Heater Power

4Circuit Breaker 3 (CB3): Oil Pump Power

5RediStart MICRO Central Processing Unit Card (CPU)

6RediStart MICRO Power Card (hidden, not depicted)

7RediStart MICRO Bypass Card (hidden, not depicted)

Fig. 5 — Solid-State Starter Box,

Internal View

Fig. 6 — Typical Starter External View

(Solid-State Starter Shown)

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 configuration

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) — The 19XRV unit 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 voltage 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 section 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 Initial Start-Up Checklist section for details.

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 representation 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 signal.)

10

Carrier XRV, EVERGREEN 19XR User Manual

ENTER

OPTIONAL

METER

PACKAGE

 

RUNNING

AUTO

Forward

SPEED

MAN

Reverse

VOLTS

REMOTE

 

 

AMPS

JOG

PROGRAM

RUN

Hz

AUTO

JOB

 

Kw

FORWARD

 

 

TORQUE

REVERSE

ENTER

Password

PROGRAM

 

 

MANUAL RESET

Fig. 7 — Variable Frequency Drive (VFD)

 

 

 

 

+ DC BUS BAR

 

 

 

 

MEASUREMENT

 

 

 

 

- POINT

INTEGRATED

 

 

 

 

STARTER

 

 

 

 

MODULE

 

 

 

 

(ISM)

 

 

 

 

 

 

 

 

INITIAL DC BUS

 

 

 

 

MEASUREMENT

 

 

 

 

POINT

OIL PUMP

 

 

 

+ DANGER -

DISCONNECT

 

 

 

HIGH VOLTAGE

 

 

 

 

CONTROL

 

 

 

AUTO Forward

 

SPEED

RUNNING

MAN Reverse

 

VOLTS

REMOTE

 

 

AMPS

JOG

RUN

AND OIL

 

Hz

AUTO

JOB

LINE

Kw

FORWARD

 

TORQUE REVERSE

ENTER

Password PROGRAM

HEATER

 

 

 

 

 

 

 

DISCONNECT

 

 

 

VFD

 

 

 

 

 

 

 

 

MODULE

 

LOAD

 

 

 

 

 

 

 

COOLING LINES

COMPRESSOR

 

 

 

 

MOTOR

 

 

 

 

DISCONNECT

 

TXV

 

 

 

 

 

 

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

General — The 19XR hermetic centrifugal liquid chiller contains a microprocessor-based control center that 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 water 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 refrigeration 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.

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.

11

FITTING (HIDDEN)

PANEL

ACTUATOR CABLE

PANEL

CABLE

WATER

 

SENSOR

WATER

CABLES

 

SENSOR

 

CABLES

COOLER

 

PRESSURE

 

TRANSDUCER

 

CONNECTION

 

CONDENSER

SCHRADER

CONDENSER

DISCHARGE

COMPRESSOR

MOTOR WINDING

PRESSURE

FITTING (HIDDEN)

SERVICE

ISOLATION

DISCHARGE

TEMPERATURE

CABLE

CONDENSER

VALVE

VALVE

ELBOW JOINTS

CABLE

 

PRESSURE

 

(OPTIONAL)

 

 

 

TRANSDUCER

 

 

 

 

 

CONNECTION

 

 

 

 

TOP VIEW

COMPRESSOR DETAIL

Fig. 9 — 19XR Controls and Sensor Locations

12

The PIC II can interface with the Carrier Comfort Network (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 control 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

Control Panel

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.

 

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 center 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 cooler. Place them in one of the 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 adjustment 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 activate 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 starting 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 PIC II to the VFD controller.

CHILLER CONTROL MODULE (CCM) — This module is located in the control panel. The CCM provides the 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 connection 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 energizes 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.

OPTIONAL TRANSFORMER (T3) — This transformer provides control power to Dataport™/DataLINK™ modules.

Fig. 10 — Control Sensors (Temperature)

Fig. 11 — Control Sensors

(Pressure Transducers, Typical)

13

Fig. 12 — Control Panel

Fig. 13 — Power Panel

14

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

Alarms are indicated when the control center alarm 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 CVC/ICVC default screen will freeze (stop updating) at the time of alarm. The freeze enables the operator to view the chiller conditions at the time of alarm. The STATUS tables will show the updated information.

Once all alarms have been cleared (by pressing the RESET 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 self test. The self test takes place automatically, after power-up.

Press the MENU softkey to view the list of menu structures: STATUS , SCHEDULE , SETPOINT , and SERVICE .

The STATUS menu allows viewing and limited calibration or modification of control points and sensors, relays and contacts, and the options board.

The SCHEDULE menu allows viewing and modification of the local and CCN time schedules and Ice Build time schedules.

The SETPOINT menu allows set point adjustments, such 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.

For morePRIMARYinformationSTATUS

on theCOMPRESSORmenu structures,DATE referTIMEto

Fig. 17. MESSAGE

ON TIME

SECONDARY

 

 

 

 

STATUS

RUNNING TEMP CONTROL

01-01-95 11:48

MESSAGE

LEAVING CHILLED WATER

28.8 HOURS

ALARM LIGHT

CHW IN

CHW OUT

EVAP REF

55.1

 

44.1

40.7

(ILLUMINATED

 

CDW IN

CDW OUT

COND REF

WHEN POWER ON)

85.0

 

95.0

98.1

BLINKS CONTINUOUSLY

 

OIL PRESS

OIL TEMP

AMPS %

ON FOR AN ALARM

21.8

132.9

93

BLINKS ONCE TO

 

 

 

 

CONFIRM A STOP

CCN

LOCAL

RESET

MENU

STOP BUTTON

 

 

 

 

HOLD FOR ONE

 

 

 

 

SECOND TO STOP

 

 

 

 

SOFT KEYS

MENU

EACH KEY'S FUNCTION IS

LINE

DEFINED BY THE MENU DESCRIPTION

ON MENU LINE ABOVE

 

Fig. 14 — CVC/ICVC Default Screen

19XR_II

SERVICE

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

Fig. 15 — CVC/ICVC Service Screen

Press the softkey that corresponds to the menu structure to be viewed: STATUS SCHEDULE , SETPOINT , or

SERVICE . To view or change parameters within any of these menu structures, use the NEXT and PREVIOUS softkeys to scroll down to the desired item or table. Use the 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.

15

Press QUIT to leave the selected decision or field without saving any changes.

Press ENTER to leave the selected decision or field and save changes.

Press NEXT to scroll the cursor bar down in order to highlight a point or to view more points below the current screen.

Press PREVIOUS to scroll the cursor bar up in order to highlight a point or to view points above the current screen.

Press SELECT to view the next screen level (highlighted with the cursor bar), or to override (if allowable) the highlighted point value.

Press EXIT to return to the previous screen level.

Press INCREASE or DECREASE to change the highlighted point value.

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 STATUS to view the list of point status tables.

2.Press NEXT or PREVIOUS to highlight the desired status table. The list of tables is:

•MAINSTAT — Overall chiller status

•STARTUP — Status required to perform 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 — Status of motor starter

•CVC_PSWD — Service menu password forcing access screen

•ICVC_PSWD — Service menu password forcing access screen

3.Press SELECT to view the desired point status table.

4. On the point status table, press NEXT or PREVIOUS until the desired point is displayed on the screen.

 

 

 

19XR_II MAINSTAT

 

POINT STATUS

 

 

 

Control Mode

 

 

OFF

 

 

 

Run Status

 

 

Ready

 

 

 

Start Inhibit Timer

 

 

0.0 Min

 

 

 

Occupied?

 

 

 

NO

 

 

 

System Alert/Alarm

 

NORMAL

 

 

 

Chiller Start/Stop

 

 

STOP

 

 

 

 

 

 

 

 

Remote Start Contact

 

 

Open

 

 

 

Temperature Reset

 

 

0.0 F

 

 

 

Control Point

 

 

44.0 F

 

 

 

Chilled Water Temp

 

 

44.6 F

 

 

 

Active Demand Limit

100%

 

 

 

Average Line Current

0.0%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 16 — Example of Status Screen

OVERRIDE OPERATIONS

To Override a Value or Status

1.From any point status screen, press NEXT or PREVIOUS to highlight the desired value.

2.Press SELECT to select the highlighted value. Then:

16

DEFAULT SCREEN

 

 

 

 

 

 

 

 

 

CCN

 

LOCAL

 

RESET

 

MENU

 

(SOFTKEYS)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Chiller In CCN Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Chiller in Local Control

 

 

 

 

 

 

 

 

 

Clear Alarms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Access Main Menu

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATUS

 

 

SCHEDULE

 

SETPOINT

 

SERVICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 1 1 1

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

 

 

List the

 

 

 

 

 

 

 

 

 

 

Status Tables

 

 

 

 

 

 

 

 

 

 

List the Service Tables

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Display The Setpoint Table

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAINSTAT

STARTUP

• COMPRESS

List the Schedules

• HEAT_EX

 

• Base Demand Limit

 

• LCW Setpoint

• POWER

 

 

• ECW Setpoint

• ISM_STAT

 

 

• Ice Build Setpoint

• CVC_PSWD

 

 

• Tower Fan High Setpoint

Select a Status Table

 

 

Select the Setpoint

NEXT

PREVIOUS

SELECT

EXIT

 

NEXT

PREVIOUS

SELECT

EXIT

Select a Modification Point

 

 

 

Modify the Setpoint

 

 

 

 

 

INCREASE

DECREASE

QUIT

ENTER

NEXT

PREVIOUS

SELECT

EXIT

 

 

 

 

 

 

Modify a Discrete Point

 

 

 

 

 

 

 

START

STOP

RELEASE

ENTER

 

 

 

 

 

ON

OFF

 

 

 

 

 

 

 

Modify an Analog Point

 

 

• OCCPC01S – LOCAL TIME SCHEDULE

 

 

 

INCREASE

DECREASE

RELEASE

ENTER

 

 

 

• OCCPC02S –

ICE BUILD TIME SCHEDULE

 

 

 

 

 

 

 

 

Modify Control Options

 

 

• OCCPC03S – CCN TIME SCHEDULE

 

 

 

ENABLE

DISABLE

QUIT

ENTER

Select a Schedule

 

 

 

 

 

 

 

 

 

NEXT

PREVIOUS

SELECT

EXIT

1

2

3

4

5

6

7

8 Override

Select a Time Period/Override

NEXT

PREVIOUS

Modify a Schedule Time

INCREASE

DECREASE

Add/Eliminate a Day

ENABLE

DISABLE

SELECT

 

EXIT

 

 

 

(ANALOG VALUES)

ENTER

 

EXIT

 

 

 

(DISCRETE VALUES)

ENTER

 

EXIT

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

NEXT

 

PREVIOUS

 

SELECT

 

EXIT

SEE FIGURE 18

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

17

SERVICE TABLE

NEXT

 

 

PREVIOUS

 

 

SELECT

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM HISTORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Display Alarm History

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(The table holds up to 25 alarms and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

alerts with the most recent alarm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

at the top of the screen.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

List the Control Tests

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCM Thermistors

 

 

CONTROL ALGORITHM STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCM Pressure Transducers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pumps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Discrete Outputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

List the Control Algorithm Status Tables

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Guide Vane Actuator

 

 

 

 

 

 

 

CAPACITY (Capacity Control)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diffuser Actuator

 

 

 

 

 

 

 

OVERRIDE (Override Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pumpdown/Lockout

 

 

 

 

 

 

 

LL_MAINT (Lead Lag Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminate Lockout

 

 

 

 

 

 

 

• ISM_HIST (ISM Alarm History)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select a Test

Guide Vane Calibration

 

 

 

 

 

 

 

• LOADSHED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WSMDEFME (Water System Manager Control Status)

 

 

 

 

 

 

 

 

 

NEXT

 

 

PREVIOUS

 

 

SELECT

 

EXIT

 

 

 

 

 

 

OCCDEFCM (Time Schedule Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select a Table

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEXT

 

PREVIOUS

 

 

 

SELECT

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCCDEFM (Time

 

 

Schedule Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAPACITY (Capacity Control Algorithm)

 

 

 

 

 

 

Data Select Table

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OVERRIDE (Override Status)

 

 

 

 

 

 

 

 

 

 

 

 

NEXT

 

 

PREVIOUS

 

 

 

SELECT

 

 

 

EXIT

 

 

 

 

 

 

 

 

LL_MAINT (LEADLAG Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WSMDEFM2 (Water System Manager Control Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCCPC01S (Local Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCCPC02S (CCN, ICE BUILD Status)

Maintenance Table Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCCPC03S (CCN Status)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQUIPMENT CONFIGURATION

 

List the Equipment Configuration Tables

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NET_OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRODEF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCCEFCS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOLIDAYS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONSUME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RUNTIME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select a Table

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEXT

 

 

 

PREVIOUS

 

 

SELECT

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select a Parameter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEXT

 

 

PREVIOUS

 

 

SELECT

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

ICVC CONFIGURATION

 

 

 

 

 

 

 

 

 

 

 

 

Modify a Parameter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INCREASE

 

DECREASE

 

 

QUIT

 

 

 

ENTER

 

(ANALOG VALUES)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENABLE

 

 

DISABLE

 

 

QUIT

 

 

 

ENTER

 

(DISCRETE VALUES)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTINUED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SELECT (USE ENTER) TO SCROLL DOWN

 

 

 

 

 

 

 

 

 

 

 

 

ON NEXT PAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LID LANGUAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INCREASE

 

 

 

 

DECREASE

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

EXIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 18 — 19XR Service Menu Structure

18

SERVICE MENU CONTINUED

FROM PREVIOUS PAGE

 

 

ISM (STARTER) CONFIG DATA

 

 

 

 

EQUIPMENT SERVICE

 

 

 

 

4 4 4 4 (ENTER A 4-DIGIT PASSWORD)

 

 

 

 

 

 

 

 

 

 

 

 

(VALUES SHOWN AT FACTORY DEFAULT)

 

Service Tables:

 

 

 

 

 

 

 

OPTIONS

 

 

 

Service Tables:

 

 

 

SETUP1

 

 

 

 

 

 

 

 

 

ISM (STARTER) CONFIG PASSWORD

 

 

SETUP2

 

 

 

 

 

 

 

 

• ISM_CONF

 

 

 

• LEADLAG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• RAMP_DEM

 

 

 

 

 

 

 

• TEMP_CTL

 

 

 

 

 

 

Select a Service Table

 

 

 

 

 

 

 

NEXT

PREVIOUS

SELECT

EXIT

 

 

 

 

 

Select a Service Table Parameter

 

 

 

 

 

 

NEXT

PREVIOUS

SELECT

EXIT

 

 

 

 

 

Modify a Service Table Parameter

 

 

 

 

 

 

INCREASE

DECREASE

QUIT

ENTER

(ANALOG VALUES)

 

 

 

ENABLE

DISABLE

QUIT

ENTER

(DISCRETE VALUES)

 

 

 

TIME AND DATE

 

 

 

 

 

 

 

 

 

 

 

Display Time and Date Table:

 

 

 

 

 

 

To Modify — Current Time

— Day of Week

ATTACH TO NETWORK DEVICE

 

 

— Current Date

— Holiday Today

 

 

 

 

INCREASE

DECREASE

ENTER

EXIT

(ANALOG VALUE)

 

List Network Devices

 

YES

NO

ENTER

EXIT

(DISCRETE VALUE)

 

Local

• Device 6

 

 

• Device 1

• Device 7

 

 

 

 

 

 

 

• Device 2

• Device 8

 

 

 

 

 

 

 

• Device 3

• Device 9

 

 

 

 

 

 

 

• Device 4

 

 

 

 

 

 

 

 

• Device 5

 

 

 

 

 

 

 

Select a Device

 

 

 

 

 

 

 

NEXT

PREVIOUS

SELECT

ATTACH

 

 

 

 

 

Modify Device Address

 

 

 

 

 

 

 

INCREASE

DECREASE

ENTER

EXIT

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

Default Screen

 

 

 

 

 

 

 

CCN

LOCAL

RESET

MENU

 

 

CVC CONFIGURATION

CVC Configuration Table

 

 

 

 

 

 

INCREASE

 

DECREASE

 

ENTER

 

EXIT

 

 

To Modify — CVC CCN Address

To View — CVC Software Version

 

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

(last 2 digits of part number

 

— Password

 

 

 

 

indicate software version)

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)

19

For Discrete Points — Press START or STOP to select the desired state.

For Analog Points — Press INCREASE or DECREASE to select the desired value.

3. Press ENTER 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 press NEXT or PREVIOUS to highlight the desired value.

2.Press SELECT to access the highlighted value.

3.Press RELEASE to remove the override and return the point to the PIC II’s automatic control.

Override Indication — An override value is indicated by “SUPVSR,” “SERVC,” or “BEST” flashing next to the point value on the STATUS table.

TIME SCHEDULE OPERATION (Fig. 19)

1.On the Menu screen, press SCHEDULE .

2.Press NEXT or PREVIOUS to highlight the desired schedule.

OCCPC01S — LOCAL Time Schedule

OCCPC02S — ICE BUILD Time Schedule

OCCPC03S — CCN Time Schedule

3.Press SELECT to view the desired time schedule.

4.Press NEXT or PREVIOUS to highlight the desired period or override to change.

5.Press SELECT to access the highlighted period or override.

6.a. Press INCREASE or DECREASE to change the time values. Override values are in one-hour

increments, up to 4 hours.

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

fields. Press DISABLE to eliminate days from the period.

Fig. 19 — Example of Time Schedule

Operation Screen

20

7.Press ENTER to register the values and to move horizontally (left to right) within a period.

8.Press EXIT to leave the period or override.

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

 

 

 

19XR_II

SETPOINT

SETPOINT SELECT

 

 

 

Base Demand Limit

100%

 

 

 

Control Point

 

 

 

 

 

 

 

 

LCW Setpoint

 

 

50.0 F

 

 

 

ECW Setpoint

 

 

60.0 F

 

 

 

ICE BUILD Setpoint

 

 

40.0 F

 

 

 

Tower Fan High Setpoint

 

 

85.0 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 20 — Example of Set Point Screen

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 SERVICE menu.

3. Press NEXT or PREVIOUS to highlight the desired set point entry.

4.Press SELECT to modify the highlighted set point.

5.Press INCREASE or DECREASE to change the selected set point value.

6.Press ENTER to save the changes and return to the previous screen.

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

21

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 NEXT or PREVIOUS softkey to highlight a point or to view items below or above the current screen. Press the NEXT softkey twice to page forward; press the PREVIOUS softkey twice to page back.

2.To access the information shown in Examples 10 through 22, enter your 4-digit password after pressing the SERVICE 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.

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

REFERENCE POINT NAME

DISPLAY

(ALARM HISTORY)

 

 

 

 

(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%

 

0-1

 

CCN

 

 

0-1

 

LOCAL

 

 

0-1

 

RESET

 

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.

22

 

 

 

 

 

 

 

Table 2 — CVC/ICVC Display Data (cont)

 

 

 

 

 

 

 

 

EXAMPLE 2 — MAINTSTAT DISPLAY SCREEN

 

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

 

 

1.

Press

 

.

 

 

 

 

 

 

MENU

 

 

 

2.

Press

 

(

 

will be highlighted).

 

 

STATUS

MAINSTAT

 

 

3.

Press

 

.

 

 

 

SELECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DESCRIPTION

STATUS

UNITS

POINT

 

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

*Chiller Start/Stop

0/1

STOP/START

CHIL_S_S

*Remote Start Contact

0/1

OPEN/CLOSE

REMCON

 

Temperature Reset

–30-30

DEG F

T_RESET

*Control Point

10-120

DEG F

LCW_STPT

 

Chilled Water Temp

–40-245

DEG F

CHW_TMP

*Active Demand Limit

40-100

%

DEM_LIM

 

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

*Service Ontime

0-32767

HOURS

S_HRS

 

Ice Build Contact

0-1

OPEN/CLOSE

ICE_CON

 

Refrigerant Leak Sensor

0-20

mA

REF_LEAK

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 devices.

EXAMPLE 3 — STARTUP DISPLAY SCREEN

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

1.Press MENU .

2.Press STATUS .

3.Scroll down to highlight STARTUP .

4.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

Actual Guide Vane Pos

0-100

%

GV_ACT

**Chilled Water Pump

0-1

OFF/ON

CHWP

Chilled Water Flow

0-1

NO/YES

CHW_FLOW

**Condenser Water Pump

0-1

OFF/ON

CDP

Condenser Water Flow

0-1

NO/YES

CDW_FLOW

Oil Pump Relay

0-1

OFF/ON

OILR

**Oil Pump Delta P

–6.7-200

^PSI

OILPD

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

**Tower Fan Relay Low

0-1

OFF/ON

TFR_LOW

**Tower Fan Relay High

0-1

OFF/ON

TFR_HIGH

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

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.

23

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 4 — COMPRESS DISPLAY SCREEN

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

1.Press MENU .

2.Press STATUS .

3.Scroll down to highlight COMPRESS .

4.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

Actual Guide Vane Pos

0-100

%

GV_ACT

Guide Vane Delta

0-100

%

GV_DELTA

**Target Guide Vane Pos

0-100

%

GV_TRG

Oil Sump Temp

–40-245

DEG F

OILT

**Oil Pump Delta P

–6.7-200

^PSI

OILPD

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

**Target VFD Speed

0-100

%

VFD_OUT

**Actual VFD Speed

0-110

%

VFD_ACT

Surge Protection Counts

0-5

 

SPC

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.

EXAMPLE 5 — HEAT_EX DISPLAY SCREEN

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

1.Press MENU .

2.Press STATUS .

3.Scroll down to highlight HEAT_EX .

4.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

**Chilled Water Delta P

–6.7-420

PSI

CHW_PD

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 Pressure

–6.7-420

PSI

ERP

Evaporator Approach

0-99

^F

EVAP_APP

**Condenser Water Delta P

–6.7-420

PSI

COND_PD

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 Pressure

–6.7-420

PSI

CRP

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

–40-245

^F

EST

(ICVC only)

 

 

 

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.

24

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 6 — POWER DISPLAY SCREEN

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

1.Press MENU .

2.Press STATUS .

3.Scroll down to highlight POWER .

4.Press 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

**Motor Kilowatt-Hours

0-99999

kWH

KWH

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

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.

EXAMPLE 7 — ISM_STAT DISPLAY SCREEN

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

1.Press MENU .

2.Press STATUS .

3.Scroll down to highlight ISM_STAT .

4.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

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.

25

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 MENU .

2.Press STATUS .

3.

Scroll down to highlight

CVC

.or

ICVC

 

 

 

4.

Press

 

.

 

 

 

 

 

 

SELECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DESCRIPTION

 

 

 

STATUS

UNITS

POINT

 

Disable Service Password

 

 

0-1

DSABLE/ENABLE

PSWD_DIS

**Remote Reset Option

 

 

0-1

DSABLE/ENABLE

RESETOPT

 

Reset Alarm?

 

 

0-1

NO/YES

REMRESET

 

CCN Mode?

 

 

0-1

NO/YES

REM_CCN

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.

EXAMPLE 9 — SETPOINT DISPLAY SCREEN

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

1.Press MENU .

2.Press SETPOINT .

3.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

Base Demand Limit

40-100

%

DLM

100

Control Point

 

 

 

 

ECW Setpoint

15-120

DEG F

ecw_sp

60.0

LCW Setpoint

10-120

DEG F

lcw_sp

50.0

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.

EXAMPLE 10 — CAPACITY DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight CONTROL ALGORITHM STATUS .

4.Press SELECT .

5.Scroll down to highlight CAPACITY .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

Entering Chilled Water

–40-245

DEG F

ECW

Leaving Chilled Water

–40-245

DEG F

LCW

Capacity Control

 

 

 

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

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.

26

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 11 — OVERRIDE DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight CONTROL ALGORITHM STATUS .

4.Press SELECT .

5.Scroll down to highlight OVERRIDE .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

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

rt_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.

EXAMPLE 12 — LL_MAINT DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight CONTROL ALGORITHM STATUS .

4.Press SELECT .

5.Scroll down to highlight LL_MAINT.

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

LeadLag Control

 

 

 

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

Satisfied?

0/1

NO/YES

pull_sat

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

Recovery Start Request

0/1

NO/YES

lag_rec

STANDBY CHILLER: Mode

NOTE 3

 

stdmode

Run Status

NOTE 4

 

stdstat

Start/Stop

NOTE 5

 

Std_s_s

Recovery Start Request

0/1

NO/YES

std_rec

Spare Temperature 1

–40-245

DEG F

SPARE_1

Spare Temperature 2

–40-245

DEG F

SPARE_2

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.

27

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 MENU .

2.Press SERVICE .

3.Scroll down to highlight CONTROL ALGORITHM STATUS .

4.Press SELECT .

5.Scroll down to highlight ISM_HIST .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

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.

EXAMPLE 14 — WSMDEFME DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight CONTROL ALGORITHM STATUS .

4.Press SELECT .

5.Scroll down to highlight WSMDEFME .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

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.

28

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 MENU .

2.Press SERVICE .

3.Scroll down to highlight EQUIPMENT CONFIGURATION .

4.Press SELECT .

5.Scroll down to highlight NET_OPT .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

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.

EXAMPLE 16 — ISM_CONF DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight ISM (STARTER) CONFIG DATA .

4.Press SELECT .

5.Enter password (4444 Factory Default).

6.Scroll down to highlight ISM_CONF .

7.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

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

29

Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 17 — OPTIONS DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight EQUIPMENT SERVICE .

4.Press SELECT .

5.Scroll down to highlight OPTIONS .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

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 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 Protection

 

 

 

 

Surge Delta% Amps

5-20

%

surge_a

10

Surge Time Period

7-10

MIN

surge_t

8

Ice Build Control

 

 

 

 

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

Refrigerant Leak Option

0/1

DSABLE/ENABLE

 

DSABLE

Refrigerant Leak Alarm mA

4-20

mA

REF_LEAK

20

Head Pressure Reference

 

 

 

 

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 MENU .

2.Press SERVICE .

3.Scroll down to highlight EQUIPMENT SERVICE .

4.Press SELECT .

5.Scroll down to highlight SETUP1 .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

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

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

30

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