Carrier 23XL Dokumentacja Pobierz pdf (Strona 2)

CONTENTS

Page

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

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

ABBREVIATIONS AND EXPLANATIONS .......4

23XL MACHINE FAMILIARIZATION ...........4-7

Machine Identiﬁcation Nameplate .............4

System Components .........................4

Cooler .......................................7

Condenser ...................................7

Motor-Compressor ...........................7

Muffler-Oil Separator .........................7

Control Center ...............................7

Factory-Mounted Starter (Optional) ............7

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

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

MOTOR COOLING CYCLE ....................7

LUBRICATION CYCLE ......................7-11

Summary ....................................7

Details ......................................7

• FRAME 1 AND 2 MACHINES

• FRAME 4 MACHINES

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

Oil Loss Prevention ..........................8

Slide Valve Principle ........................11

STARTING EQUIPMENT ....................11,12

Unit Mounted Solid-State Starter (Optional) ...11

Unit Mounted Wye-Delta Starter ..............12

CONTROLS ...............................13-37

Controls Deﬁnitions .........................13

• ANALOG SIGNAL

• DIGITAL SIGNAL

• VOLATILE MEMORY

General Controls Overview ..................13

PIC System Components ....................13

• PROCESSOR MODULE (PSIO)

• STARTER MANAGEMENT MODULE (SMM)

• LOCAL INTERFACE DEVICE (LID)

• 6-PACK RELAY BOARD

• 8-INPUT MODULES

• OIL HEATER CONTACTOR (1C)

• HOT GAS BYPASS RELAY (3C) (Optional)

• CONTROL TRANSFORMERS (T1-T4)

• CONTROL AND OIL HEATER VOLTAGE

SELECTOR (S1)

• VI INLET CONTACTOR RELAY (2C) (Optional)

• TEMPERATURE SENSORS

• PRESSURE TRANSDUCERS

LID Operation and Menus ...................17

• GENERAL

• ALARMS AND ALERTS

• MENU STRUCTURE

• TO VIEW POINT STATUS

• OVERRIDE OPERATIONS

• TIME SCHEDULE OPERATION

• TO VIEW AND CHANGE SET POINTS

• SERVICE OPERATION

PIC System Functions .......................22

• CAPACITY CONTROL

• ENTERING CHILLED WATER CONTROL

• DEADBAND

• PROPORTIONAL BANDS AND GAIN

• DEMAND LIMITING

• MACHINE TIMERS

• OCCUPANCY SCHEDULE

Safety Controls .............................23

• SHUNT TRIP

Ramp Loading Control ......................29

Page

Capacity Overrides ..........................29

Oil Sump Temperature Control

(Frame 1 and 2 Machines) .................29

Remote Start/Stop Controls ..................29

Spare Safety Inputs .........................29

• SPARE ALARM CONTACTS

Condenser Pump Control ....................29

Condenser Freeze Protection ................31

Tower-Fan Relay ............................31

Auto.-Restart After Power Failure ............31

Water/Brine Reset ...........................32

Demand Limit Control, Option (Requires

Optional 8 — Input Module) ................32

Hot Gas Bypass (Optional) Algorithm ........32

Lead/Lag Control ...........................33

• COMMON POINT SENSOR INSTALLATION

• MACHINE COMMUNICATION WIRING

• LEAD/LAG OPERATION

• FAULTED CHILLER OPERATION

• LOAD BALANCING

• AUTO RESTART AFTER POWER FAILURE

Ice Build Control ............................34

• ICE BUILD INITIATION

• START-UP/RECYCLE OPERATION

• TERMINATION OF ICE BUILD

• RETURN TO NON-ICE BUILD OPERATIONS

Attach to Network Device Control ............35

• CHANGING REFRIGERANT TYPES

• ATTACHING TO OTHER CCN MODULES

Service Operation ...........................36

• TO LOG ON

• TO LOG OFF

• HOLIDAY SCHEDULING

START-UP/SHUTDOWN/RECYCLE

SEQUENCE .............................37-39

Local Start-Up ..............................37

Shutdown Sequence ........................38

Automatic Soft Stop Amps Threshold ........38

Chilled Water Recycle Mode .................38

Safety Shutdown ............................39

BEFORE INITIAL START-UP ................39-56

Job Data Required ..........................39

Field Supplied Equipment Required ..........39

Using the Optional Storage Tank

and Pumpout System .....................39

Remove Shipping Packaging ................39

Open Oil Circuit Valves ......................39

Check Machine Tightness ...................39

Refrigerant Tracer ...........................39

Leak Test Machine ..........................40

Standing Vacuum Test ......................48

Machine Dehydration ........................48

Inspect Water Piping ........................48

Check Optional Pumpout Compressor

Water Piping ..............................48

Check Relief Devices ........................48

Inspect Wiring ..............................49

Carrier Comfort Network Interface ...........49

Check Starter ...............................49

• MECHANICAL-TYPE STARTERS

• BENSHAW, INC. SOLID-STATE STARTERS

Oil Charge ..................................50

Power Up the Controls and

Check the Oil Heater ......................50

Set Up Machine Control Conﬁguration .......50

• SOLID-STATE STARTERS (Cutler-Hammer)

High Altitude Locations .....................52

Input the Design Set Points ..................52

1 2 3 4 5 6 7 ... 103 104

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