Gree D Series User manual

Change for life
DSeries Modular Air-cooled
Scroll Chillers
Commercial Air Conditioners
Owner's Manual(Original Instructions)
AIR CONDITIONER OUTDOOR UNIT
Thank you for choosing commercial air conditioners.
Please read this Owner’s Manual carefully before operation and retain it for future
reference.
If you have lost the Owner's Manual, please contact the local agent or visit www.
greeproducts.es or send an email to [e-mail] for the electronic version.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

User Notice
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
This appliance is intended to be used by expert or trained users in shops, in light industry and
on farms, or for commercial use by lay persons.
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of
such waste separately for special treatment is necessary.
This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they
have been given supervision or instruction concerning use
of the appliance in a safe way and understand the hazards
involved.Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without
supervision.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

Contents
1 General Introduction...................................................................................1
2 Product Data and Operating Range ...........................................................2
3 Outline Dimension ......................................................................................3
4 Installation Instructions...............................................................................4
4.1 General ................................................................................................4
4.2 Acceptance Check ...............................................................................5
4.3 Handling and Lifting .............................................................................5
4.4 Installation Foundation.........................................................................5
4.5 Vibration Reduction..............................................................................7
4.6 Water System ......................................................................................7
5 Guidance to Controller Operation.............................................................10
5.1 Overview on Wired Controller ............................................................10
5.2 Control Panel of the Wired Controller ................................................10
5.3 Wired Controller Operation Instructions............................................. 11
5.4 Reset (for erasing error).....................................................................21
5.5 Menu Structure ..................................................................................22
6 Electric Control Cabinet............................................................................26
6.1 Wiring for Output Control Lines..........................................................26
6.2 Specication of Power Cord and Air Switch.......................................26
6.3 Wiring of the Electric Control Cabinet................................................27
6.4 Filed Wiring ........................................................................................27
6.5 Wiring betwween Chilled Modules.....................................................28
6.6 Setup of Toggle Switches on the Motherboard ..................................29
6.7 Jumpers .............................................................................................29
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

7 Commissioning and Maintenance ............................................................30
7.1 Check before Startup.........................................................................30
7.2 Requirements on Water System and Water Quality ..........................30
7.3 Trial Run.............................................................................................31
7.4 Routine Startup/Shutdown.................................................................31
7.5 Maintenance during Long-term Downtime.........................................31
7.6 Startup after Long-term Shutdown.....................................................31
7.7 Parts Replacement ............................................................................32
7.8 Refrigerant Charging..........................................................................32
7.9 Removal of the Compressor ..............................................................32
7.10 Freeze Protection.............................................................................33
7.11 Routine Maintenance .......................................................................33
7.12 Precautions......................................................................................34
8 Troubleshooting ........................................................................................34
8.1 Error Lists and Troubleshooting Measures ........................................34
8.2 After-sales Service.............................................................................35
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
1
1 General Introduction
Main technical data of D series modular air-cooled scroll chillers are listed on the nameplate.
D series modular air-cooled scroll chillers are developed based on the B series modular air-
cooled scroll chillers. However, it has higher reliability, efciency and more reasonable design and
can be widely used at newly built or retrotted industrial and civil buildings in various sizes, such
as, hotels, apartments, restaurants, ofce buildings, shopping malls, theaters, gyms, workshops,
hospitals and other places where there are high requirements on noise level and air but the cooling
tower is going to be installed troublesomely.
The applicable refrigerant for D series modular air-cooled scroll chillers is R22 or R410A.
D series modular air-cooled chillers work outstandingly by virtue of their major features stated below.
◆Excellent compatibility: Each D series modular air-cooled scroll chillers is constructed of
up to 16 single units of 65D, 80D or up to 8 single units of 130D,160D which may vary in
structure and in capacity.
◆Free master module design: Any single unit can operate as the master once connected
with the wired controller. It overcomes the problem which would occur to the product of other
manufacturer that the whole system would fail to work properly when the xed master unit
malfunctions.
◆Compact structure: The modular design enables the compact structure, reduced volume,
light weight, easy handling and shipping and exible installation.
◆Powerful self-protection: It is equipped with the top-end microcomputer control system
which is capable of providing well-rounded protection and self-diagnosis.
◆High reliability: It is constructed of well-designed refrigeration parts for multiple refrigeration
cycles, adequately guaranteeing the reliable operation.
◆Hermetic scroll compressor: Compared with other type of compressor under the same
cooling load, it has few movable components, smaller rotating torque, lower noise and
vibration and higher reliability and efciency.
◆Equilibrium running: It indicates each compressor will run alternately so as to extend their
service life.
◆Humanized operation designing: When the unit runs out of the allowable temperature
range, an alert will rise on the display.
◆Low maintenance cost: The especially design structure allows easy access and service and
low maintenance cost.
◆Hi-precision electronic expansion valve: The hi-precision electronic expansion valve is
used as the throttling device, providing high reliable, sensitive and precise service.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
2
Fig.1-1 Schematic Diagram
2 Product Data and Operating Range
(1) See the Data Sheet for detailed product data. Data on the product nameplate always takes
precedence. If there is any special requirement, consult the local sales office for model
selection.
(2) maximum and minimum water operating pressures.
The maximum inlet water pressure is 1.0×106Pa.
The minimum inlet water pressure is 0.2×106Pa.
(3) Operating Range
Item
Water Side Air Side
Water Flow
m3/ (h·kW)
Leaving Water
Temperature
(℃)
DB Temperature
(℃)
WB Temperature
(℃)
Cooling
0.172
7 35 —
Heating (Heat Pump) 45 7 6
Item
Water Side Air Side
Leaving Water
Temperature
(℃)
Chilled Water
Temperature Difference
(℃)
Ambient DB
Temperature
(℃)
Cooling 5 ～15 2.5 ～615 ～48(R22)
15 ～45(R410A)
Heating (Heat Pump) 40 ～50 2.5 ～6 -15 ～24
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
3
3 Outline Dimension
(1) Graph for the shape and dimensions for LSQWRF65M/D-M, LSQWRF65M/NaD-M, LSQWRF80M/D-M,
LSQWRF80M/NaD-M (Unit:mm)
(2) Graph for the shape and dimensions for LSQWRF130M/D-M,LSQWRF130M/NaD-M
(Unit:mm)
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
4
(3) Graph for the shape and dimensions for LSQWRF160M/D-M
(Unit:mm)
403
2160
1676
2226
1650
2026(Ground bolt 4-M12)
1617(Ground bolt 4-M12)
317
(4) Graph for the shape and dimensions for LSQWRF160M/NaD-M
(Unit:mm)
339
1676
2226
2026(Ground bolt 4-M12)
1617(Ground bolt 4-M12)
1650
403
2160
4 Installation Instructions
4.1 General
Installation should be performed by the skilled technician to guarantee the normal operation
and prevent malfunctions and please read this manual carefully prior to installation.
The chiller is manufactured, inspected and tested strictly in accordance with the quality control
program and it will work properly within the expected service life as long as its installation, operation
and service follow the instructions covered in this manual, otherwise, it would lead to potential risks.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
5
4.2 Acceptance Check
The user is responsible for organizing personnel to perform the acceptance check at the
regulated plate of delivery. Checks listed below should be taken as a minimum.
(1) If all required documents and accessories are provided as per the packing list.
(2) Check the equipment model.
(3) If the equipment is damaged and all parts are provided.
(4) If refrigerant leaks.
(5) Do not remove the protective cover on the flagon of the shell-and-tube heat exchanger
before connecting the water tube and check if the water pipe is clean.
(6) Check if the installation and operation are within the allowable conditions.
When there is damager or any other question, contact the local sales representative for
applicable solutions.
Note: After the acceptance check, take necessary protection to the unpacked equipment. Note
that it is not recommended to unpack the equipment too early to avoid any unexpected damage.
4.3 Handling and Lifting
Each unit will undergo a series of strict factory inspections and tests to guarantee the expected
performance and quality. However, special attention should be paid during handling and shipping to
prevent the control system and the piping system from being damaged.
It is best to unpack the chiller at the installation location and keep the chiller upward. When the
chiller is unpacked during handing, please follow the lifting instructions stated below.
(1) Move the chiller by placing three levers 1/5 wider than the width of the chiller under the
base and meanwhile always keep the chiller in balance.
(2) See the gure below for more details.
The expander bar
should be longer
than the width of
the unit
protected by
flexible materia
4.4 Installation Foundation
(1) Installation foundation shall be designed by the qualied designer in accordance with the
actual condition.
(2) A rubber pad shall be placed under the base of each single unit and then secured on the
ground or the roof. Alternatively, each single unit can be placed side by side on the parallel
channel steel with enough strength which then shall be secured with anchor bolts. Distance
between each single unit shall be keep 1m as a minimal.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

D Series Modular Air-cooled Scroll Chillers Owner's Manual
6
(3) Enough space shall be left for service and ventilation. Be sure there is at least 2m between the
equipment and any barrier and it is better to set up a sun cover 3m ahead of the equipment.
(4) The unit shall be installed where it will not be affected by re, corrosive, inammable or
waste gas, and proper measures shall be taken to minimize the vibration and noise.
(5) The unit shall be installed where the defrosting water can be drained out favorably.
(6) Do not install the unit where there is heavy snow. If inevitable, build a foundation at least
300mm higher than the ground.
(Unit:mm)
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.