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

Page 2
Image 2
Carrier 19XR, XRV specifications Contents

19XR, XRV specifications

The Carrier 19XR and 19XRV chillers are sophisticated cooling solutions that represent the forefront of HVAC technology. Designed for large commercial and industrial applications, these chillers provide exceptional performance, energy efficiency, and reliability, making them ideal for a variety of environments ranging from hospitals to manufacturing facilities.

One of the most significant features of the Carrier 19XR and 19XRV chillers is their advanced scroll compressor technology. These units employ a tandem scroll design that enhances efficiency while minimizing operational noise. This makes them ideal for urban environments where noise restrictions may be in place. Moreover, the compressors are equipped with variable speed drive options in the 19XRV model, which allows for greater energy savings by adjusting cooling output based on real-time demand.

In addition to their advanced compressors, the 19XR and 19XRV units incorporate the Carrier GreenChoice refrigerant, which has a lower global warming potential compared to traditional refrigerants. This innovative choice not only meets regulatory requirements but also contributes to sustainability goals, making these chillers a responsible choice for environmentally conscious organizations.

The units are engineered with a robust heat exchanger design, which enhances heat transfer efficiency and overall system performance. This ensures optimal operation even in extreme conditions. They feature a microprocessor-based control system that allows for precise monitoring and control of the chiller’s performance, enabling operators to make real-time adjustments to maximize energy efficiency.

The Carrier 19XR and 19XRV chillers also prioritize serviceability. The design incorporates easy access to key components, simplifying maintenance procedures and reducing downtime. This focus on maintainability extends the lifespan of the equipment, leading to lower lifecycle costs.

In terms of connectivity, these chillers are equipped with advanced Building Management System (BMS) integration capabilities. This allows for seamless monitoring and control of the chillers using a centralized platform, facilitating energy management and operational optimization.

Overall, the Carrier 19XR and 19XRV chillers stand out in the market for their blend of cutting-edge technology, energy efficiency, and user-friendly features. They are engineered to meet the demanding needs of modern commercial and industrial applications, making them a preferred choice for facility managers seeking reliable cooling solutions.