Embed Size (px)
Citation preview
Miidea reservve the righ
Coolin
t to improv
A
LSBLLSBL
ng capacit(
ve the prod
Air- Co
R134a
LGCW360ALGCW 720Ay: 102RT, 364kW, 45
duct and te
ooled P
a: Reversed
A, LSBLGCA, LSBLGC127RT, 17
50kW, 591k
echnology w
ScrewProduct
d M shape
CW 450A, CW 800A,
70RT, 200RkW, 720kW
without pri
w chiCatalo
e Heat exc
LSBLGCW LSBLGCW
RT, 225RT, W, 800kW,
50Hz/
or notice.
ller
ogue
hanger
W 600/Q, W 900A 250RT 900kW)
/60Hz
—2—
Contents
1. Company introduction
2. Nomenclature
3. Feature and Benefits
4. Mechanical components
5. Specification
6. Dimension
7. Construction
8. PLC controller
9. Typical piping
10. Wiring
11. Options
—3—
Midea chiller manufacture-base introduction With 46 years experience in chiller industry Midea Chongqing chiller manufacture base is
becoming one of the largest chiller company in China. It covers an area of 800 Mu (137 acre), with a registered capital of 12.5 million US $ and a total investment of over 0.6 billion US$. There are 6 product series and over 100 model products including centrifugal chillers, screw water chillers, scroll water chillers, water-cooled packaged units, and central air-conditioning indoor terminal devices(AHU/FCU). Five chiller manufacture shops with 14 flexible manufacture lines lead a manufacture capacity of 250 units centrifugal chillers, 1000 units of air cooled screw, 2000 units of water cooled screw and 200000 units of AHU products.
Strong R&D and manufacture capacity make Midea Chongqing general become the fastest develop company in chiller industry. The chiller testing lab which certified by China National Refrigeration Equipment Inspection Center is the largest test cooling capacity in Asia. The engineer team with 100 top engineers and 2 chiller experts who awarded by the central government in structure ,electricity, performance testing and software aspect makes the headship in chiller industry. In the year of 2011 Midea refrigeration group will invest another 150 million RMB for testing lab as ARI testing stand, big capacity air cooled screw life span testing room, 1500Kw compressor motor testing stand etc.
Concentrate on energy-saving and ejection-decreasing Midea Chongqing chiller factory commits itself to the reliable and high efficiency products to the world. The chiller products are widely used in different countries and obtain good public praise from the clients. The solution for the Beijing capital international airport ,Jakarta international airport, China rapid transit station win good feedback and commend. Continue with the past and open up the future Midea chiller brand will go further and create illustrious future.
—4—
Nomenclature
LS B LG C W XXX /M
Brief introduction Midea C series air cooled screw chillers are the premium solution for industrial and commercial
applications where installers, consultants and building owners require optimal performances and
optimized quality. Midea C series air cooled screw chillers are designed to meet current and
future requirements in terms of reliability, energy efficiency and intelligent control. We use the
best technologies available today :Twin-rotor screw compressors with a variable capacity valve
are ideally matched to evaporators and condensers optimally configured for superior heat
transfer and unit efficiency.
- Environmentally friendly refrigerants R134a.
-Low-noise Low-vibration high efficiency fans, high-efficiency rifled pipe with aluminum fin heat
exchangers .
-Touchable screen PLC control system with user-friendly operator interface.
-Each unit is completely assembled, factory wired, evacuated, charged, tested and comes
complete and ready for installation.
Water-cooled chiller M,A: CE certification
Nominal cooling capacity (KW)
Air cooled condenser
Refrigerant type C R134a; Omit for R22
Compressor structure typeLG Screw type compressor
Compressor structure typeB Semi-hermetic
—5—
Features and benefits Environmental care
R134a refrigerant
- Refrigerant of the HFC group with zero ozone depletion potential. It is environmentally safe and
does not have a phase-out date.
Economical Operation Cost Extremely high full load and partial load energy efficiency. New twin-rotor screw compressor
equipped with a high-efficiency motor and a variable capacity valve that can adjust the
capacity of 25%, 50%, 75% and 100% in 4 stages (Stepless control as an option) and
permits exact matching of the cooling capacity to the actual load.
Electronic expansion device permits the operation at a lower condensing pressure and
improve the utilization of the evaporator heat exchange surface (superheat control).
Economizer system with electronic expansion device for increases the cooling capacity.
Automatic scheduling of the Chiller's compressors allows the chiller to match the fluctuating
cooling load and conserve energy with each unit running at its peak efficiency.
Lower operating noise The twin-screw compressor adopts the strong points of gapless-loss, high- efficiency cubage,
low-noise, few easy workout parts. Double-wall structure not only compensates the pressure,
but also significantly reduces the noise. Cast iron structure of the compressor casing and oil
separator can reduce the noise significantly.
-Low-noise fans, made of a composite material are now even quieter and do not generate
intrusive low-frequency noise. Rigid fan mounting is preventing start-up noise. -Multiple direct drive dynamically balanced propeller fans operate at low tip speeds for
maximum efficiency and minimum noise and vibration. A heavy-gauge vinyl-coated fan
guard protects each fan.
Outstanding reliability -Full factory testing of all the units ensures a trouble free start-up. Extensive test makes certain
that each safety and operating control is properly adjusted, and operates correctly. The unit
has passed full factory test before being delivered to ensure the reliable working on the site.
-Transport simulation test in the laboratory on a vibrating table.
Simple Structure Easy Installation
The unit can be placed in service after being connected with power supply and water supply
during field installation .Standard flange connection and wire mesh to the electrical panel make
the installation easy and simple.
—6—
State of Technique, Accuracy Control
-The sensors related to control and other assemblies are equipped by factory and strictly
tested.
-Intelligent control：The unit is controlled by micro-controller(PLC) and has the automatic control
functions of fault diagnosis, energy management and anti-freezing monitoring, which ensures
the high-efficiency operation of the unit, and more convenient in use. The unit with RS485 open
protocol communication interface. BMS compatible. The startup and shutdown of each unit is
controlled by the host computer, reducing the running cost to the lowest.
-Complete and safe control system: All electrically control elements are designed and selected
with stable quality and reliable function; The unit designed with multiple security measures
ensure the safe and reliable running witch including high and low pressure protection, oil feed
pressure difference protection, anti-freezing protection, water flow protection, converse default
phase protection, Overload protection etc.
MAdMicoprowhduThspeqforproswcoco
CoAi
se
ex
op
•
se
co
sta
Mechandvancedidea® Scr
ompressor ocessed bhich minimuration. he comprepeed. It is quipment srce bearinotection an
witch, oil sompressor ontinuously
ondenser cooled c
eamless i
xpanded o
ptimum hea
Grooved
eamless,
oefficient, c
aggered ro
ical comd Twin-Rorew Chillethat has
by high-premizes the fr
ssor motonon-revers
schedule. Cgs, oil coond dischargsight glassis from SK
y more than
er condenser
nner gro
onto the d
at exchang
condenser
internally
corrosion r
ows and
mponenotor Screer equippe
the latestecision CNriction resi
r is direct sing, squirCompressooler connege tempera, oil strain
KF, Swedenn 60,000 h
coil cons
ove copp
ie formed
ge capab
r fin and
enhanc
resistant c
mechanica
nts ew Comped with tht advance
NC and eacstance an
drive type rrel cage iors combinector, liquidature & it's
ner, crank n, the long hours.
ist of stag
per tube,
aluminum
ility.
tube cond
ced, high
copper tub
ally bonde
—7—
pressorhe 3rd ge
ed 5-6 asych part is d clearanc
with two pnduction t
ned an Bald injections controllercase heatlifespan o
ggered row
mechan
m fin to en
denser coi
h conden
es arrange
ed to corro
eneration ymmetry dwell-propo
ce lost, gua
poles to opype suitabance Pisto & econom
r, oil level ster and otf which en
ws of
ically
nsure
ils of
nsing
ed in
osion
Re
industrial dentiform ortioned anarantees q
perate at 2ble for the on with sepmizer connswitch and her accessures scre
eversed M
Semi-hermrotors. Thnd none-gaquiet runni
2960 rpm (voltage s
parated radnector, PToil pressusories. Th
ew-type ma
shape He
metic Scre rotors aap matchinng and go
(50 HZ) inphown on tdial and ax
TC motor cre different
he bearing ain unit to r
at exchang
ew are ng,
ood
put the xial coil tial of
run
ger
—8—
resistant aluminum alloy fins with full height fin collars.
Blue fin coating, black epoxy-coated aluminum fin
are options.
Fan • Condenser Fans with low noise, full airfoil cross
section for maximum efficiency, statically and
dynamically balanced for low vibration operation,
and positioned in extended, formed steel orifices for
low sound and maximum efficiency.
• Condenser fan motors are high efficiency, direct
drive, 6-pole, 3-phase, Class-“F”insulation and IP55
protection, current overload protected, totally enclosed
type with double sealed, permanently lubricated, ball
bearings.
Evaporator
Evaporator is tube-in-shell heat exchanger design, with internally-finned copper tubes roller
expanded into the tube sheet. Units are fabricated with high-performance tubing, steel shell &
tube sheets. Water boxes are nozzle-in-head type with flange for easy connections.
• High efficiency, direct-expansion type cooler with refrigerant in tubes and chilled liquid through
the baffled shell.
• Design working pressure of the shell waterside is 1Mpa, and 2.4Mpa for the refrigerant side.
Working pressure of 1.6Mpa or 2.0Mpa is optional.
• Water baffles fabricated from galvanized steel to resist corrosion. Removable heads allow
access to internally-enhanced, seamless, copper tubes. Water vent and drain connections
included. •The 20MM thickness insulation covers all low temperature surfaces to include the evaporator, water boxes, oil return lines, chilled water flow switch piping etc.
ThFa
dr
Th
ev
PI
Re
• I
co
as
•
re
ele
un
hrottlingamous bra
ive module
he drive mo
vaporator s
D arithmet
efrigeran
Independe
omputer co
s compared
Liquid line
movable c
ectronic ex
nits.
Device nd electron
e control.
odule cont
suction sup
tic control t
nt Circuit
ent refrigera
ontrolled be
d to design
e compone
core filter-
xpansion v
nic expans
troller cont
perheat.
the open d
t
ant circuits
ending mac
ns that use
ents includ
-drier, sole
valves for
sion valve
trols the va
degree of t
s per comp
chines. Th
e fittings, re
de: Manua
enoid valv
R134a an
—9—
which con
alve accord
he valve
pressor, ea
his eliminat
esulting in a
al shut-off
ve, sight g
d a therm
ntrol by
ding to
ach using c
tes over 60
a highly re
valve with
glass with
ostatic exp
copper refr
0% of syste
eliable and
h charging
moisture-
pansion va
rigerant pip
em piping
leak resist
g port, hig
-indicator,
alves for r
pe formed
brazed joi
tant system
h adsorpti
and reliab
remote bar
on
nts
m.
ion
ble
rrel
Microprocessor Controls • Controls housed in a powder painted steel cabinet enclosure with hinged, latched, and gasket
sealed, door.
• Liquid crystal 40 character display with text
provided on two lines and light emitting diode
backlighting for outdoor viewing.
• Color coded, 32 button, sealed keypad with
sections for Display, Entry, Set points, Clock, Print,
Program and Unit On/Off.
• Standard controls include: automatic pump down, run signal contacts, demand load limit from
external building automation system input, unit alarm contacts, evaporator pump control,
automatic reset after power failure, automatic system optimization to match operating conditions,
software stored in non-volatile memory (EPROM) to eliminate chiller failure due to AC power
failure. Programmed setpoints retained in lithium battery backed RTC memory for a minimum 5
years.
—2—
Options WATER FLOW SWITCH Vapor-proof SPDT,NEMA 4X switch, 150 PSIG (10.3 bar) DWP, -20°F to 250°F (-29°C to 121°C), with 1" NPT (IPS) connection for upright mounting in horizontal pipe. (This flow switch or equivalent must be furnished with each unit). (Field mounted) VIBRATION ISOLATION ♦ Neoprene Isolation – Recommended for normal installations and provides good performance in most applications for the least cost. (Field mounted) ♦ 1" Spring Isolators – Level adjustable, spring and cage type isolators for mounting under the unit base rails. 1" nominal deflection may vary slightly by application. (Field mounted) ♦ 2" Seismic Spring Isolators – Restrained Spring-Flex Mountings incorporate a rugged welded steel housing with vertical and horizontal limit stops. Housings designed to withstand a minimum 1.0g accelerated force in all directions to 50mm. Level adjustable, deflection may vary slightly by application. (Field mounted) DX COOLER OPTIONS ♦ 21 bar (300 PSIG) Waterside Design Working Pressure – The DX Cooler Waterside is designed and constructed for 21 bar (300 PSIG) working pressure. (Factory mounted) ♦ 38mm (1-1/2") Insulation – Double thickness insulation provided for enhanced efficiency. ♦ Hydrophilic blue fins ♦ Anti-corrosion fins. This can provide corrosion resistance comparable to copper-fin coils in typical seashore locations. POWER SUPPLY ♦380V-3P-60Hz ♦460V-3P-60Hz For the 60Hz or R22 products data，please contact with the local office. Note: For more detail, please contact with the local office.
—3—
Appearance
360kW / 100RT unit 450kW / 120RT unit
600kW / 170RT unit
700kW /800kW/ 900Kw (200RT/225RT/250RT) unit
Note: 700kW /800kW/ 900Kw units are dual compressor type.
They will be available in July, 2011.
—4—
Specifications (1) R134a units
Unit Model LSBLGCW360A LSBLGCW450A LSBLGCW600
Cooling
capacity KW 364 450 594
Power supply 380V/3P/50Hz
Rated power
consumption kW 113 138 184
Compressor Type Semi- hermetic, twin screw compressor
Quantity 1 1 1
Energy adjustable range% 25%,50%,75%,100% 4-step ( 50%~100% stepless as option)
Refrigerant Type R134a
charge（kg） 80 122 125
Air Side
Heat-exchang
er
Type M shape Heat exchanger, High efficient exchanger tube + aluminum fins
Fans Quantity 6 8 10
Air Volume
（m3/h） 23000×6 23000×8 20000×10
Motor input
（kW） 2.8×6 2.8×8 1.8×10
Water Side
Heat-exchang
er
Type Shell-and-tube heat-exchanger
Water Volume
（t/h） 62.6 77.4 102
Water
pressure drop
（kpa）
50 55 60
Inlet/outlet
Pipe diameter
（mm）
DN125 DN125 DN125
Water side fouling factor
（m2.k/kW） 0.018 （m2·k/kW）
Dimension（mm）
Length（mm） 3730 4730 5700
width（mm） 2280 2280 2280
height（mm） 2370 2370 2400
Shipping weight（kg） 3320 4325 5000
Running weight（kg） 3520 4530 5200
Notes： 1) Nominal cooling capacities are based on the following conditions: Chilled water inlet/outlet temp: 12℃/7℃; Outdoor temp (DB/WB):35℃/24℃. 2) The applicable ambient temperature range of R134a air-cooled screw units is 21℃ ~ 43 ,℃ please refer to the technical manual for detailed performance table.
—5—
Specifications (2) R134a units(Reversed M shape Heat exchanger)
Unit Model
Descriptions LSBLGCW720A LSBLGCW800A LSBLGCW900A
Cooling capacity kW 729 810 902 Power supply 380V/3P/50Hz
Rated power
consumption kW 227 251 278
compressor Type Semi- hermetic, twin screw compressor
Quantity 2 2 2 Energy adjustive range% 25%,50%,75%,100% 4-step ( 50%~100% stepless as option)
Refrigerant Type R134a
charge（kg） 80*2 80+122 122*2
Air Side
Heat-exchanger
Type Reversed M sharp Heat exchanger,
High efficient exchanger tube + aluminum fins
Fans Quantity 12 14 16
Air Volume（m3/h） 23000×12 23000×14 23000×16
Motor input（kW） 2.8×12 2.8×14 2.8×16
Water Side
Heat-exchanger
Type Shell-and-tube heat-exchanger
Water Volume（t/h） 125 139 155 Water pressure drop
（kpa） 65 70 80
Inlet/outlet Pipe
diameter（mm） DN150 DN150 DN150
Water side fouling factor（m2.k/kW） 0.018 （m2.k/kW）
Dimension（mm）
Length（mm） 7425 8425 9425
width（mm） 2280 2280 2280
height（mm） 2430 2430 2430
Shipping weight（kg） 6700 7750 8900
Running weight（kg） 7000 8050 9200
Notes：
1) Nominal cooling capacities are based on the following conditions:
Chilled water inlet/outlet temp: 12℃/7℃; Outdoor temp (DB/WB):35℃/24℃.
2) The applicable ambient temperature range of R134a air-cooled screw units is 21℃ ~ 43℃,
please refer to the technical manual for detailed performance table.
Capacity table
Model OutletTemp.
Ambient temperature 20 25 30 35 40 43
Cooling Capacity
/kw
Power Input /kw
CoolingCapacity
/kw
Power Input /kw
CoolingCapacity
/kw
Power Input /kw
Cooling Capacity
/kw
PowerInput /kw
CoolingCapacity
/kw
Power Input /kw
Cooling Capacity
/kw
Power Input /kw
LSBLGCW360
5 388.0 93.8 372.6 98.6 356.5 105.4 338.8 111.0 318.5 118.9 298.6 126.8 6 400.5 94.6 384.3 99.9 368.4 106.4 352.7 111.9 330.6 120.0 314.1 128.1 7 415.0 95.5 397.5 100.6 380.7 107.4 364.0 113.0 347.2 121.2 329.0 129.4 8 426.4 96.4 407.6 101.7 392.8 108.2 370.5 114.0 351.0 122.5 338.2 130.9 9 439.4 97.1 422.1 102.6 405.0 108.8 384.7 114.4 363.0 123.2 349.2 131.9
10 452.4 97.8 435.6 103.4 419.7 109.6 393.3 115.7 374.2 124.2 355.1 133.5 11 462.4 98.3 446.3 104.5 427.1 110.6 408.4 116.4 386.9 125.0 369.5 134.9 12 478.4 99.1 459.9 105.6 441.7 111.5 420.2 117.3 396.6 126.1 381.7 136.3 13 488.8 99.8 472.2 106.6 450.7 112.3 432.1 118.1 409.4 127.3 391.6 137.5 14 504.4 100.6 485.0 107.6 466.1 113.2 444.0 119.0 421.3 128.3 405.7 138.7 15 520.9 101.2 498.4 108.3 481.0 113.9 459.2 119.7 433.2 129.4 409.7 140.0
LSBLGCW450
5 443.3 112.2 432.3 119.2 421.4 127.4 410.0 135.3 379.7 148.8 361.6 159.1 6 463.1 113.4 450.6 120.1 439.9 128.5 429.3 136.5 398.1 150.0 379.4 160.5 7 483.3 114.5 469.2 121.3 458.1 129.8 450.0 138.0 416.2 151.4 396.0 161.8 8 503.0 115.5 487.6 122.4 478.0 131.1 466.7 139.1 433.3 152.6 413.2 163.0 9 522.9 116.6 505.9 123.7 497.2 132.4 483.1 140.4 449.9 154.0 430.0 164.5
10 542.8 117.9 525.0 124.9 514.6 133.4 498.5 141.6 465.7 155.3 446.0 165.9 11 563.0 119.2 543.7 126.2 532.4 134.6 516.9 142.8 483.2 156.7 463.0 167.4 12 583.9 120.3 562.5 127.3 551.3 135.9 534.6 144.1 500.9 158.0 480.7 168.7 13 603.2 121.4 581.5 128.4 570.4 137.1 551.7 145.3 518.1 159.3 497.9 170.2 14 622.7 122.4 601.0 129.6 589.9 138.2 569.8 146.7 535.7 160.8 515.3 171.7 15 638.9 123.6 618.9 130.7 605.6 139.4 587.9 147.9 552.9 162.1 531.9 173.0
—2—
LSBLGCW600
5 619.5 140.5 602.0 151.5 584.0 163.5 554.0 183.0 539.0 194.0 527.5 202.0 6 642.4 141.0 624.4 152.1 606.1 164.0 574.7 183.4 559.2 194.4 547.4 202.4 7 665.1 141.1 647.3 152.2 628.4 164.0 596.2 184.1 579.5 195.1 568.3 203.2 8 687.5 142.1 669.4 153.0 650.2 165.2 617.7 185.2 599.5 195.3 588.0 203.0 9 711.8 142.7 693.2 153.5 673.3 165.8 640.4 185.7 621.5 195.7 609.7 203.6
10 736.1 143.2 717.0 154.0 696.4 166.3 663.0 186.1 643.4 196.0 631.4 204.1 11 761.7 143.5 742.2 154.4 721.4 166.6 686.2 186.5 666.8 196.8 654.4 204.5 12 787.2 143.8 767.4 154.8 746.5 166.9 709.4 186.8 690.3 197.6 677.5 204.8 13 813.8 144.1 793.6 155.2 772.0 167.4 733.8 187.4 714.5 198.2 701.3 205.4 14 841.5 144.2 820.9 155.7 798.1 168.3 759.4 188.2 739.5 198.7 725.8 206.3 15 869.2 144.3 848.1 156.1 824.2 169.1 785.0 189.0 764.5 199.1 750.3 207.2
Dimensions
(1)LSBLGCW360A units
(2)LSBLGCW450A units
(3)LSBLGCW600 units
Chilled water inletDN125
Chilled water outletDN125
—2—
(4)LSBLGCW720 units
DN150
Chilled water inletDN150
Chilled water outlet
—3—
(5)LSBLGCW800 units
DN150
Chilled water inletDN150
Chilled water outlet
—4—
(6)LSBLGCW900 units
DN150
Chilled water inletDN150
Chilled water outlet
Installation basement (1) LSBLGCW360A units
Foundation
Unit bottom
Foundation bolt M14
Control box
Model Weight to be supported by spring isolator
A B C D
LSBLGCW360A 1050kg 1050kg 1050kg 1050kg
(2) LSBLGCW450A units
Foundation
Unit bottom
Foundation bolt M14
Control box
—2—
Model Weight to be supported by spring isolator
A B C D E F
LSBLGCW450A 1050kg 1050kg 850kg 1050kg 1050kg 850kg
（3）LSBLGCW600 units
Unit bottom
Foundation bolt M14
Control box
Foundation
Model Weight to be supported by spring isolator
A B C D E F
LSBLGCW600 1050kg 1050kg 850kg 1050kg 1050kg 850kg
—3—
（4）LSBLGCW720 units
Model Weight to be supported by spring isolator（kg）
A B C D E F G H
LSBLGCW720A 897 885 862 856 897 885 862 856
（4）LSBLGCW800 units
Foundation
Unit bottom
Control box
Foundation bolt M14
Foundation
Unit bottom
Foundation bolt M14
Control box
—4—
Model Weight to be supported by spring isolator（kg）
A B C D E F G H I J
LSBLGCW800A 595 854 865 859 852 595 854 865 859 852
（4）LSBLGCW900 units
Model Weight to be supported by spring isolator（kg）
A B C D E F G H I J K L LSBLGCW900A 583 857 872 863 571 854 583 857 872 863 571 854
Foundation
Unit bottom
Foundation bolt M14
Control box
1. Be sure to take the preparation and structure of base into consideration seriously during
installation, especially avoid the intensity and noise of floor when the machine is installed on
the top storey of buildings. It is recommended to discuss with the building designer before
conducting installation.
2. The surrounding of the base shall be equipped with drainage ditch and make sure it can
discharge freely for convenient in drain.
3. Anti-vibration pad shall be placed between the base frame and base in order to avoid
transmitting vibration and noise during the runtime of the unit, and make sure the unit is even
during installation. Use a shock absorber when necessary.
Unit bottom
Vibration isolator
Foundation
Figure 1 Figure 2
Note: 1) When adopting the fixing method as shown in Figure 2, leave space for the anchor bolt
hole for installing shock absorber
2) When adopting the fixing method as shown in Figure 1, leave space for the mounting hole
of the anchor bolt on the base frame according to the position of the mounting hole in
installation drawing.
Absorber
Basement
Steel plateThickness>5mm
Bottom of unit
—6—
Installation space
—7—
Construction ○1 ○2 ○3
○1 Condenser
○2 Fan of condenser
○3 Start up cabinet
○4 Compressor
○5 Colorful touch screen
○6 Evaporator
○4 ○5 ○6
○1 ○2 ○3
○1 Electric control cabinet
○2 Condenser
○3 Evaporator
○4 Start up cabinet
○5 Compressor ○4 ○5 ○6
P Co PLMichcoresmo
CoThpaincdisseanpa
PoW WThau DaMa 3-3-cUn SeSereqMu
PLC con
ontrol pa
LC contridea LSBL
hiller with hontrol systeserved witonitoring a
olor touche displayarameters, ch, 65636stinguish aettings of vnd pressurarameters a
ower-dowWhen power
Weekly ophe user cautomatically
ata acquax. 256 rec
-class paclass passnauthorize
elf-Diagnelf-diagnosquirementsultiple self-
ntroller
anel layo
roller LGCW chillhigh-class em is moth RS485 and control
chable sy of cont
diagnostic6 colors Tability. The various sere values,and option
wn memr-down, the
peration n set the cy. If sudde
uisition &cords of lat
asswordsswords ared access t
nosis sis is alws get satisf-protecting
out
ler adopts accuracy.
odule-desigport can b of the chil
creen trol regulacs, and er
TFT displascreen ca
et points, s, and the
ns.
mory funce chiller wi
schedulchiller open power do
& Storingtest alarms
s e for the uo the contr
ays perfofied，the c
g functions
PLC contrPLC cont
gned, easybe interfaceller is poss
ation andrror messayer with 8n display especified t
status o
ction ll maintain
ing ration scheown happe
g s and 500
user, for Inrol is prote
rmed befochiller will sguarantee
—8—
roller whictrol systemy for instaed with BAsible.
d operatinages is a 800 X 48error codesemperaturf operatin
preceding
edule in thens, the ch
seconds c
nstallation ected with r
ore start-ustart. e the safety
h enables m guaranteallation anAS (Buildin
g 7
80 s, re g
g running m
he weekly thiller will no
chilled/cool
and for thrandom-ge
up to ena
y of unit an
the user tees high prnd maintenng Automa
mode and p
timetable tot restart u
ing water t
he Debuggenerated pa
able safe
nd running
to monitor recision annance. Th
ation system
parameter
to run andntil manua
temperatur
ging technassword.
operation
perfectly.
and contrond stabilityhe chiller wm). The re
set point.
stop the cal reset.
re trend dis
ician of fa
n. Only al
ol the y. The which emote
chiller
splay.
actory.
ll the
Hi
Po
Anco
Fr
Ov
Ovco
W
Reco
Y
23
gh/low pre
ower lack p
nti-freeze pooling mod
requent sta
ver current
verheat proompressor
Water flow p
everse proontroller(AP
Y-∆ start1）structu2）starting3）lower vmotor.
essure prot
phase prot
protection ue
artup prote
t protection
otection of
protection
otection PRS)
t up cabire simple a
g current isvoltage sta
tection
ection
under
ction
n of Comp
f
inet—staand reliabls 20-30% oart up can
Guaranand its
Protectlack ph
Protectdamag
Protectoverhe
. Protectheavy c
Protectrefriger
Protectheat-ex
Guarandirectio
andard me of full load n effectivel
—9—
ntee the Colifespan
t Comp. frohase and a
t the coppee due to w
t Comp. froated windi
t Comp. frocurrent
t Comp. frorant or lubr
t Comp. froxchange
ntee the coon
model
current y protect
omp. runni
om damagenti-phase
er pipes of water freeze
om getting ng due to
om getting
om damagricant oil
om getting
omp. motor
the
ing in the r
e under su
evaporatoe
burned byfrequent st
burned du
e due to la
burned du
r running in
right range
uch situatio
or from
y the tartup
ue to too
ack of
ue to failure
n the right
e
on of
e of
—10—
Field wiring diagram
Electric parameter table
Model Main
power
Power Range Compressor Fan Highest running current/
A Highest/+% Lowest/-% Quantity Start current/A
Highest running
current/A
Rated current/
A
Rated power/K
W Fan
quantityRate of
fan/RPMRated
current/A
V Hz LSBLGCW360A 380/400 50 +10 -10 1 240 228 207.2 113 6 940 5.6 261.6 LSBLGCW450A 380/400 50 +10 -10 1 650 296 243.3 138 8 940 5.6 340.8 LSBLGCW600A 380/400 50 +10 -10 1 805 340 290 166 10 940 5.5 395 LSBLGCW720A 380/400 50 +10 -10 2 Refer to 360A 12 940 5.6 523.2 LSBLGCW800A 380/400 50 +10 -10 2 Refer to 360A+450A 14 940 5.6 602.4 LSBLGCW900A 380/400 50 +10 -10 2 Refer to 450A 16 940 5.6 681.6
Typical water piping diagram
Note: The piping diagrams below are for reference only; please revise it according to actual project site situation
Applicable ambient temperature range:
Content Running range Ambient TEMP. T1 Condition: 21℃～43℃
Out water TEMP. 5℃～15℃
Water flow volume Rating flow volume±20%
Max inlet/outlet water TEMP. difference 8℃
Voltage tolerance Rating Voltage±10% Phase tolerance ±2％
Power supply frequency Rating frequency±2%
Evaporator max working pressure on water side 1.0MPa Compressor max. start count 4 times
Environment quality High corrosive environment and high humidity should be avoid.
Drainage system The height of dropsy should not be higher than the base of the unit on the spot
—14—
Midea Air-Conditioning and refrigeration sector Address Midea Headquarter Building, Shunde Foshan,Guangdong Post: 528311 Sale tel: +86-757-22367937 Sale fax: +86 -757-26338807
ChongQing Midea-General Refrigeration Address No.15 Rosebush Rd., Nan'an Tea Garden14 Post: 40133614 Tel: +86-23-62483395/-23-62483398 Fax: +86-23-62483328 http//www.midea.com.
Chongqing Midea General Refrigeration Equipment Co., Ltd. Has received Quality management systems ISO 9001 & Environmental management system ISO 14001 certification ID: 9105035139
Note: The data in this book may be changed without notice for further improvement on quality and performance
