Carrier-Sanyo 16NK Bedienungsanleitung

16NK

Double-Effect Steam-Fired

Absorption Chillers

Nominal cooling capacity 345-4652 kW

50 Hz

Operation and maintenance instructions

GB/T-19001-2000 to ISO9001/2000

NOTES TO USERS

Thank you for purchasing a Carrier/Sanyo absorption chiller.

Read this manual carefully before operating the unit. It contains instructions for the operation and maintenance of the chiller.

Please utilize the chiller to its optimum performance by carrying out the recommended daily maintenance and handling

instructions as well as the periodic service.

If you need any information about maintenance contracts or have any other enquiries, please contact your Carrier service agent.

The cover photograph is for illustrative purposes only, and are not contractually binding.

Contents

NOTES TO USERS........................................................................................................................................................................... 2

1 - PRECAUTIONS .......................................................................................................................................................................... 4

1.1 - Safety precautions....................................................................................................................................................................... 4

1.2 - High-temperature - high-voltage caution....................................................................................................................................8

1.3 - Environmental requirements.......................................................................................................................................................8

1.4 - Water treatment........................................................................................................................................................................... 8

2 - MACHINE ILLUSTRATIONS .................................................................................................................................................. 8

2.1 - Typical chiller views - all sides...................................................................................................................................................8

2.2 - Typical control panel ................................................................................................................................................................ 12

2.3 - Chiller owchart and component function description ............................................................................................................14

3 - OPERATING INSTRUCTIONS .............................................................................................................................................. 17

3.1 - Self-diagnostic function............................................................................................................................................................17

3.2 - Description of keys and their functions.................................................................................................................................... 18

3.3 - Control board settings...............................................................................................................................................................19

3.4 - Cooling operation ..................................................................................................................................................................... 21

3.5 - Changing the information on the data display.......................................................................................................................... 22

3.6 - Changing display and setpoint..................................................................................................................................................23

3.7 - Maintenance message............................................................................................................................................................... 23

3.8 - Alarm messages and actions required....................................................................................................................................... 23

4 - MAINTENANCE....................................................................................................................................................................... 25

4.1 - Daily maintenance .................................................................................................................................................................... 25

4.2 - Periodic maintenance................................................................................................................................................................28

4.3 - Recommended maintenance and main component replacement schedule............................................................................... 29

4.4 - Water treatment......................................................................................................................................................................... 30

5 - TROUBLESHOOTING ............................................................................................................................................................ 32

6 - INSTRUCTIONS....................................................................................................................................................................... 34

6.1 - Absorbent sampling method ..................................................................................................................................................... 34

6.2 - Concentration measurement method ........................................................................................................................................34

7 - MAINTENANCE CONTRACT ............................................................................................................................................... 36

7.1 - Annual maintenance contract.................................................................................................................................................... 36

7.2 - Inspection report....................................................................................................................................................................... 36

7.3 - Warranty.................................................................................................................................................................................... 36

APPENDIX 1 - TROUBLESHOOTING FLOWCHART ...........................................................................................................37

Problem 1 - Chiller does not run....................................................................................................................................................... 37

Problem 2 - Chilled-water temperature is high................................................................................................................................. 38

Problem 3 - Generator alarm............................................................................................................................................................. 39

Problem 4 - Combustion alarm (16DJ only)..................................................................................................................................... 40

Problem 5 - Water alarm ................................................................................................................................................................... 41

Problem 6 - Motor alarm................................................................................................................................................................... 41

Problem 7 - System alarm................................................................................................................................................................. 42

1 - PRECAUTIONS

1.1 - Safety precautions

• Before operating this chiller, first carefully read the

following instructions.

• All precautions are classified as either WARNING or

CAUTION.

WARNING: Failure to observe this instruction may result in

serious injury or death.

CAUTION : Failure to observe this instruction may cause an

injury or failure of chiller. Depending on circumstances, this

may result in serious injury or death.

This symbol denotes danger, a warning or a caution.

The illustration in this symbol shows the specic

description of the item.

This symbol prohibits an action.

The illustration next to this symbol shows the specific

description of the item.

This symbol instructs an action to be done.

The illustration in this symbol shows the specific

description of the item.

• After reading this manual, it should be kept in a safe place

to be available for any user at any time.

TURN OFF THE BREAKER BEFORE CLEANING AND

CHECKING

Always turn off the circuit breaker before cleaning and checking

the cooling tower fan, chilled water pump, or other components

linked to the chiller, to provide protection from electric shock or

or possible injury by the rotating fan.

INSPECTION

DO NOT TOUCH THE CONTROL PANEL SWITCH WITH

WET HANDS

Do not touch the switch inside the control panel with wet hands

to avoid electric shock.

STOP OPERATION IN CASE OF FIRE, EARTHQUAKE OR

ELECTRICAL STORMS

Stop operation in case of re, earthquake or an electrical storm, to

prevent re or electric shock.

DO NOT TOUCH THE WIRING INSIDE THE CONTROL

PANEL

Do not touch the wiring inside the control panel to avoid electric

shock.

SWITCH

DO NOT TOUCH

MUST BE OBSERVED

1.1.4.1 Safety considerations

WARNINGS

DO NOT TOUCH ROTATING MOTOR PARTS

Keep away from rotating parts of motors or pumps to avoid

possible injury.

PROHIBITED

SOLVE ALL PROBLEMS BEFORE RESTARTING THE

CHILLER

Solve all the problems before restarting the chiller after a safety

or security device is activated.

MUST BE OBSERVED

DO NOT PLACE HEAVY OBJECTS ON THE CHILLER

OR CONTROL PANEL

Do not place heavy objects on the chiller or control panel as

these may fall off and cause injuries.

PROHIBITED

DO NOT CLIMB ON THE CHILLER

Do not climb on the chiller as you may fall off.

PROHIBITED

AUTHORIZED PERSONNEL ONLY

A notice, "For Authorized Personnel Only" must be afxed to

the chiller to stop unauthorized personnel from touching it. If

necessary surround the chiller by a protective fence. Misuse of

the chiller may cause injury.

PROHIBITED

WARNINGS CAUTIONS

VENTILATE THE MACHINE ROOM

Ventilate the machine room while nitrogen gas is discharged to

avoid anoxia.

MUST BE OPERATED

DO NOT POUR WATER ON THE CHILLER OR CONTROL

PANEL

Do not pour water on the chiller or control panel to avoid electric

shock.

PROHIBITED

USE THE CORRECT POWER SUPPLY

This is indicated on the chiller name plate. Use of an incorrect

power supply may cause re or electric shock.

PROHIBITED

NEVER CHANGE THE SET VALUES

Never change the set values of the safety and/or protective

devices. Wrong settings may damage the chiller or cause re.

PROHIBITED

DO NOT TOUCH THE ABSORBENT

Do not touch spare or leaked absorbent, as this can cause metal

corrosion or skin disease.

PROHIBITED

STOP THE PURGE PUMP TO REPLACE OIL

Stop the purge pump when replacing oil to avoid possible injury

by fuel spillage.

MUST BE OBSERVED

DO NOT TOUCH HIGH-TEMPERATURE AREAS

Do not touch high-temperature areas, as they may cause burns.

These areas are indicated by caution label.

What

voltage?

STOP

CAUTIONS

OBSERVE THE SPECIFIED WATER/STEAM PRESSURE

The specied chilled water, cooling water and steam pressure

must be strictly observed.

Incorrect pressure may cause the water to leak/spray which can

lead to short circuits or burns.

MUST BE OBSERVED

4: Absorption

chiller

1.1.3 - Operating precautions

1. Keep the purge valve tightly shut to prevent air from

leaking into the chiller, which may cause the failure of the

chiller.

2. Keep the power supply to the control panel turned on,

unless carrying out maintenance or service.

3. During the chiller dilution cycle the chilled-water pump

(both the primary side and the secondary side) and air

handling unit must be operated for the required time. The

chiller has some cooling capacity, even in the dilution

cycle. Do not stop the air handling unit before the required

time to prevent possible subcooling.

4. Do not perform an insulation test on the control circuits of

the electric controller.

5 . Use a Carrier recommended interlock system to stop/start

the auxiliary equipment. The interlock system automatically

stops/starts the chilled-water pump and cooling water

pump. Follow the start procedure in Figure 1 below.

Fig. 1 - Auxiliary equipment start/stop sequence

Start sequence

1: Chilled

water pump

2: Cooling

water pump

3: Cooling

tower

5: Air

handling

unit

1 Absorption

chiller

2: Cooling

water pump

3: Cooling

tower

4: Chilled

water pump

5: Air handling

unit

Stop sequence

ONLY AUTHORIZED PERSONNEL SHOULD SERVICE

THE CHILLER

Only authorized personnel should service the chiller. Incorrect

service could result in electric shock or re.

PROHIBITED

1.1.2 - Safety precautions for repair, moving or disposal

ONLY AUTHORIZED PERSONNEL SHOULD REMOVE OR

REPAIR THE CHILLER

Any relocation or moving of the chiller should only be done by

authorized personnel. Incorrect work could result in water leaks,

electric shock or re.

MUST BE OBSERVED

ONLY AUTHORIZED PERSONNEL SHOULD DISPOSE OF

THE CHILLER

To dispose of the chiller, contact local specialists. Incorrect

disposal may result in absorbent leaks and cause metal corrosion

or skin disease, electric shock or re.

MUST BE OBSERVED

WARNINGS

CAUTIONS

2 - MACHINE ILLUSTRATIONS

2.1 - Typical chiller views - all sides

2.1.1 - 16NK 11 to 63

Fig. 2 - Water header side

Legend

1 Condenser

2 Chilled water outlet

3 Chilled water inlet

4 Evaporator

5 Cooling water inlet

6 Low-temperature generator

7 High temperature generator

8 Steam inlet

9 Absorber

Fig. 3 - Water header side (rear)

Legend

1 High-temperature generator

2 Low-temperature generator

3 Cooling water outlet

4 Evaporator

5 Steam trap

6 Condenser

7 Absorber

1.2 - High-temperature - high-voltage caution

• Do not touch the chiller during operation since its surface

becomes hot.

• Do not touch the absorbent pump, the refrigerant pump,

and the purge pump during operation, since their surface

becomes hot.

• Do not touch the junction box during operation, since it

contains high-voltage wiring.

• Do not touch the terminal box during operation, since it

contains high-voltage wiring.

1.3 - Environmental requirements

1.3.1 - Installation considerations

The 16NK absorption chiller is designed for indoor installation

in a machine room. The protection rating of the chiller is IP40.

Room temperature should be maintained between 5°C and

40°C to protect against solution crystallization during chiller

shutdown. The humidity in the machine room must be kept

below 90%.

1.3.2 - Field wiring

The machines should be connected to a power source that

complies with overvoltage category III (IEC 60664). All other

wiring should comply with overvoltage category II.

1.3.3 - Altitude

Please install the absorption chiller at a maximum height of

1000 m above sea level. If the location is higher than 1000 m

above sea level, please contact your local Carrier office.

1.4 - Water treatment

Refer to chapter 4 "Maintenance”.

Fig. 4 - Control panel side (evaporator side)

1 2

345

Legend

1 Control panel

2 Purge tank

3 Refrigerant drain heat reclaimer

4 Absorbent pump 1

5 Refrigerant pump

6 Refrigerant blow valve

Fig. 5 - High-temperature generator side (absorber side)

3 4

56 7 8

Legend

1 Purge unit

2 High-temperature heat reclaimer

3 Purge pump

4 Low-temperature heat exchanger

5 Low-temperature heat reclaimer

6 Steam drain outlet

7 High-temperature heat exchanger

8 Absorbent pump 2

2.1.2 - 16NK 71 to 81

Fig. 6 - Water header side

5 6 7

Fig. 7 - Water header side (rear)

Legend

1 Steam inlet/high-temperature generator

2 Low-temperature generator

3 Cooling water outlet

4 Chilled water outlet

5 Chilled water inlet

6 Cooling water inlet

7 Condenser

8 Absorber

9 Evaporator

10 Absorber

Legend

1 Low-temperature generator

2 High-temperature generator

3 Steam drain outlet

4 Condenser

5 Absorber

6 Evaporator

7 Absorber

1 2 3 4

5678

Fig. 8 - Control panel side

Legend

1 Control panel

2 Refrigerant blow valve

3 Purge tank

4 Purge unit

5 Purge pump

6 Refrigerant drain heat exchanger

7 Refrigerant pump

8 Low-temperature heat exchanger

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