York 21RT-47RT User manual

YCWE Modular
Water-Cooled Chiller
Installation, Operation and
Maintenance Manual
FORM NO.: 6U6W-A01C-NB-EN
YCWE Modular
Water-Cooled Chiller
21RT-47RT
R410A Refrigerant
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Table of Contents
Table of Contents
Part 1: Introduction of Unit........................................................................................................................................... 2
1.1. Description of Unit Model................................................................................................................................ 2
1.2. Parameter Table of High-efficient Single-cooling Unit .................................................................................... 3
1.3. Outline Dimensions of the Unit ........................................................................................................................ 4
1.4. Operating Range ............................................................................................................................................... 7
1.5. Water Pressure Drop Curve for the Unit........................................................................................................... 8
Part 2: Installation Requirements.................................................................................................................................. 9
2.1. Inspection Items Before Installation ................................................................................................................. 9
2.2. Requirements for Unit’s Loading & Unloading and Hoisting .......................................................................... 9
2.3. Selection for the Installation Position of the Unit........................................................................................... 10
2.4. Requirements for Unit’s Installation Foundation/Installation Space............................................................... 10
2.5. Remove Compressor’s Transport Fixed-Parts................................................................................................. 12
2.6. Installation of Water System ........................................................................................................................... 13
2.7. Buffer tank ...................................................................................................................................................... 17
2.8. Expansion tank................................................................................................................................................ 17
2.9. Water flow switch ........................................................................................................................................... 17
2.10. System outlet/return water temperature sensor ............................................................................................... 18
2.11 Water Treatment.............................................................................................................................................. 19
Part 3: Electrical Connection...................................................................................................................................... 20
3.1 Safety Precautions........................................................................................................................................... 20
3.2. Communication wiring and address setting.................................................................................................... 21
3.3. Recommendation for the power cable of the unit ........................................................................................... 25
3.4. Installation and wiring of the unit................................................................................................................... 25
3.5. Installation of wire controller.......................................................................................................................... 26
3.6. Unit electrical schematic diagram................................................................................................................... 29
Part 4: Operation instructions of wire controller ........................................................................................................ 32
4.1 Appearance Description.................................................................................................................................. 32
4.2 Power-on initialization.................................................................................................................................... 33
4.3 Restore the Default Value................................................................................................................................ 33
4.4 Displaystatus................................................................................................................................................... 33
4.5 Keys ................................................................................................................................................................ 35
4.6 Mechanical switch key.................................................................................................................................... 36
4.7 Buzzer............................................................................................................................................................. 36
4.8 Backlight......................................................................................................................................................... 36
4.9 Functions......................................................................................................................................................... 36
Part 5: Operation description for HMI 7-inch touch screen........................................................................................ 50
5.1. Overview......................................................................................................................................................... 50
5.2. Key and function display ................................................................................................................................ 50
5.3. Key and function display ................................................................................................................................ 50
5.4. Module status interface................................................................................................................................... 54
5.5. Module status interface ................................................................................................................................... 56
5.6. Human-machine interface............................................................................................................................... 58
5.7. System’s configuration interface..................................................................................................................... 61
5.8. Schedule interface........................................................................................................................................... 64
5.9. Diagnosis interface.......................................................................................................................................... 66
5.10. Fault information............................................................................................................................................. 67
5.11 Interface definition.......................................................................................................................................... 69
Part 6: Maintenance.................................................................................................................................................... 70
6.1. Unit’s operation process.................................................................................................................................. 70
6.2. Periodic Care and Maintenance ...................................................................................................................... 70
6.3. Fault and troubleshooting................................................................................................................................ 71
6.4. Fault Analysis.................................................................................................................................................. 75
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Table of Contents
Part 7: Description for Modbus protocol interface..................................................................................................... 77
7.1. Device connection........................................................................................................................................... 77
7.2. Modbus Protocol............................................................................................................................................. 77
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Foreword
1
Foreword
The production of the water-cooled water chiller unit shall strictly follow the design and production standards to
ensure that the unit provides high-quality operation, high reliability and excellent adaptability.
This manual contains the information necessary for proper installation, commissioning, start-up and maintenance.
For the best use of this equipment, please read this manual and various labels posted on units and components carefully
before installing, starting or overhauling the machine.
Do not operate the machine if you do not fully understand the working principle of the unit, or don't have sufficient
safety knowledge, and fail to take the relevant safety protection measures, so as to avoid personal danger and unit failure.
Therefore, we recommend that the installation and commissioning of the machine should be done by specially
trained personnel.
The personnel responsible for the installation of the machine shall ensure the installation process is carried out
safely and he/she shall also be responsible for the installation of all refrigerant pipelines, conduits, electrical installations
and other necessary ancillary equipment.
York Company shall not be liable for any personal injury or machine damage caused by improper installation
and commissioning, unnecessary maintenance, or non-compliance with the provisions and instructions in this
manual.
Should you have any questions during the installation, please contactYork Company and its various local offices.
Other Precautions
Inspection
Upon the receipt of the unit, it shall be inspected immediately for the damage that may occur during
transportation. If there is any obvious damage, it shall be written on the carrier's transport documents, and then
claim according to the instructions of the notice. In case of damage of any parts other than the surface, please
inform the maintenance personnel of the local York Company immediately.
Storage
Ifthe unit is to be stored for a period of time before installation, some protective measures shall be taken to
prevent damage, corrosion or wear.
All joints such as water pipe joints shall be sealed in good condition.
The temperature of storage environment shall not exceed the range of -30 ~ 48 ℃, and the relative humidity
shall be less than 90%. The direct sunlight shall be avoided.
Do not use hot water or steam to clean it for fear of inadvertently actuating the safety mechanism of the unit.
In order to reduce the possibility of accidental damage (such as being broken and collided, etc.), the unit
should be stored as much as possible at the place at which various activities are least likely to happen.
Take the key of the electric control cabinet down and keep it properly.
Periodic visual inspection shall be conducted during the storage.
Symbols Used in This Manual
Warning: The warning must be observed to avoid physical injury to the user
Caution: This attention must be followed in order not to cause damage to the machine parts
The warranty coverage must meet the following conditions:
The installation must be carried out by trained professionals.
The start-up of the machine must be carried out by professional maintenance personnel of the professional York
Company Maintenance Service Center or designated special company personnel.
Only use the various spare parts provided by York Company.
All machine operation and maintenance items specified in this manual must be carried out in strict accordance with
the specified time and frequency.
The warranty shall automatically become invalid in case of violation of any of the above conditions.
!
!
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Introduction of Unit
2
Part 1: Introduction of Unit
YCWE series modular water-cooled water chiller unit, whose refrigerant is R410A, provides cold water/hot water
for the centralized air treatment equipment or terminal device of the central air-conditioning project, including three
basic module models - YCWE021/023, YCWE032/034 and YCWE042/047, each module can be run and installed
separately, and several modules can also be run and assembled together. A maximum of eight modules are allowed to be
assembled together. YCWE series units can be applied to refrigeration, heating and heat recovery.
The unit can be installed indoors or outdoors (for the outdoor installation, only the unit with shell is applicable).
Each module includes the scroll compressor, condenser, evaporator, expansion valve and microcomputer control center,
etc.
1.1. Description of Unit Model
Name Y C W E 0 3 2 X S M E 5 0
Code Position 1 2 3 4 5 6 7 8 9 10 11 12 13
Code 1: Y–York
Code 2: C– Chillers
Code 3: W – Water-cooled Type
Code 4: E–Scroll Compressor
Code 5, 6 and 7: Nominal Refrigeration Capacity, ton
Code 8: Unit series; X - high-efficient and single-cooling
Code 9: Unit type, R- heat pump, S- single cooling
Code 10: Unit type; M-module machine
Code 11: Refrigerant; E-R410A
Code 12 and 13: Power type/50 380V-3N-50Hz
：
; 53 400V-3N-50Hz
：
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Introduction of Unit
3
1.2. Parameter Table of High-efficient Single-cooling Unit
Model YCWE021XSME YCWE032XSME YCWE042XSME
Refrigerant R410A R410A R410A
Refrigeration
Nominal Refrigeration
Capacity kW 76.2 114.2 151.9
Nominal Input Power kW 14.4 21.6 28.7
COP kW/kW 5.29 5.29 5.29
Heat
Recovery
Heat Recovery Volume kW 90.6 135.8 180.6
Nominal Input Power kW 14.4 21.6 28.7
IPLV kW/kW 6.85 6.85 6.85
Power Supply V/Ph/Hz 380(400)/3/50
Rated Current A 29.4 44.1 58.8
Maximum Continuous Running Current A 46.4 69.6 92.8
Compressor Model / Hermetic Scroll Hermetic Scroll Hermetic Scroll
Quantity Set 2 3 4
Condenser
Diameter of Water Pipe inch2 3 3
Connection Type / Clamp Clamp Clamp
Nominal Water Flow m^3/h 16.4 24.6 32.7
Water Pressure Drop kPa 72 63 62
Evaporator
Diameter of Water Pipe inch2 3 3
Connection Type / Clamp Clamp Clamp
Nominal Water Flow m^3/h 13.1 19.6 26.1
Water Pressure Drop kPa73 28 30
Outline
Dimension
Height mm 1330 1330 1330
Length mm 1480 1480 1480
Width mm 775 775 775
Weight Transport Weight kg 380 540 690
Operating Weight kg 430 620 770
Outline
Dimension
(With Shell)
Height mm 1560 1560 1560
Length mm 1550 1550 1550
Width mm 910 910 910
Weight
(With Shell)
Transport Weight kg 530 655 840
Operating Weight kg 580 735 920
Note: The above data is designed based on the national standard of GB / T18430
Rated working condition of refrigeration capacity: water inlet temperature of cooling water (condenser): 30°C;
water outlet temperature of chilled water (evaporator): 7°C
Rated working condition of heat recovery: water outlet temperature of cooling water (condenser): 35°C; water
outlet temperature of chilled water (evaporator): 7°C
Evaporator’s fouling factor for the unit under rated flow: 0.018m2K/kW
Condenser’s fouling factor for the unit under rated flow: 0.044m2K/kW
The parameters in the table will vary along with the design change of the manufacturer's product without prior notice
380(400)/3/50 380(400)/3/50
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Introduction of Unit
4
1.3. Outline Dimensions of the Unit
YCWE021XSME50
YCWE021XSME50-A
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Introduction of Unit
5
YCWE032XSME50
YCWE042XSME50
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Introduction of Unit
6
YCWE032XSME50-A
YCWE042XSME50-A
Note:
The picture is the schematic diagram, and the internal structure shall be subject to the real object.
Connection mode of water inlet-outlet pipe is the clamp connection
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz

Introduction of Unit
7
1.4. Operating Range
Voltage Range
Standard of Power Supply: 380VAC-3N-50Hz
Maximum allowable fluctuation range of the power supply voltage shall be ±10%
Unbalance rate of the three-phase voltage shall be less than 2%
Temperature Range
Items Range
Usage environment for 7-inch screen controller -20 - 60°C; RH≤95%; Noncondensing
Usage environment for wire controller 0-50°C, RH-95%; Noncondensing
Temperature range of unit’s operating environment -10°C -48°C
Operation of Cooling Using-side water inflow 10°C (-5°C*) - 30°C
Using-side water outflow 5°C (-10°C*) - 24°C
Heat-source-side water inflow 15°C - 50°C
Operation of Heating Using-side water inflow 15°C - 50°C
Using-side water outflow 20°C - 55°C
Heat-source-side water inflow 10°C - 30°C
Operation of Heat Recovery Using-side water inflow 10°C - 30°C
Using-side water outflow 5°C - 24°C
Returning hot water 30°C - 50°C
Note:
Returning water temperature control is set as default and recommended
The above data is obtained in the laboratory. In actual use, it will be biased by the influence factors, such as
installation location, etc.
* Saline-water Mode (for ethylene glycol aqueous solution only), and the set value shall be selected in
accordance with ethylene glycol’s concentration
Water temperature’s operating range diagram for standard unit is as follows
Note: The above diagram is standard unit operating range diagram. For the operation range of saline-water mode,
please consult Johnson Controls
Other Requirements:
/ 400VAC-3N-50Hz
Cooke Industries - Phone: [phone] Email: [email protected] Web: www.cookeindustries.co.nz