MDV MDC-SS35/RN1L User manual

MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Content i
Content
1．Nomenclature.................................................................2
2．Product Lineup...............................................................2
3. External Appearance.....................................................3
4．Features..........................................................................4
5．Specifications.................................................................9
6．Dimensions...................................................................17
7．Refrigeration System Sketch Drawing .......................20
8．Wiring Diagrams...........................................................22
9．Electric Characteristics ...............................................35
10．Capacity Tables..........................................................36
11．Exploded View............................................................54
12．Trouble Shooting........................................................72
13．Installation ..................................................................84
14．Commissioning ........................................................101
15．Maintenance .............................................................102
16．Control System.........................................................104
17. Optional Accessories ................................................163
Appendix ..........................................................................163
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without
incurring obligations.

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
2Nomenclature&Product Lineup
1．Nomenclature
MD C - S P 35 M - R N1 L
2．Product Lineup
SS series
No
Model
Refrigerant
Net dimension
Net weight
Power supply
W×H×D (mm)
(kg)
1
MDC
-SS35/RN1L
R410A
1020×1770×980
320
380-415/3/50
2
MDC
-SS65/RN1L
R410A
2000×1770×960
530
380-415/3/50
3
MDC
-SS80/RN1L
R410A
2000×1770×960
645
380-415/3/50
4
MDC
-SS130/RN1
R410A
2200×2060×1120
935
380-415/3/50
Working condition:
Omit for T1 condition
T: Tropical condition
L: Low ambient temp. cooling
Refrigerant type
N1:R410A Omit for R22
Power Supply
S: 380V, 50Hz, 3Ph
R: 380~415V, 50Hz, 3Ph
M: Built-in hydraulic module
Rated cooling capacity (kW)
Special function code
S: Standard, double pipe or shell-tube heat exchanger
and fixed compressor
P: Plate heat exchanger, fixed compressor
Series code
S: Super
P: Power
M: Maker
Chiller
MDV

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
External appearance 3
3. External Appearance
25/35kW module 65/80kW module
130kW module

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Features 4
4．Features
4.1 New structure design
The module adopts new structure design, H shape condenser, 360Oair suction, increased the heat
exchanging area, efficiently enhanced the heat exchange efficiency.
4.2 Modular design, flexible combination
The unit adopts modular design, which can make more units to connect together. The maximum
combination of the system consists of 1 main unit and 15 slave units. Cooling (heating) capacity range is
from 35kW to 2080kW，meanwhile every separate module can operate as main unit, also each module can
be a slave unit with modules combination, more convenient for design and installation.
4.3 Backup functions
When unit is failed
If master unit fails, all the units will stop.
If one slave unit fails, this unit will stop but the others will keep running.
When the master unit fails, any of the slave one can be set as the master unit by manual setting.
130kW
130kW
2080kW
Max. 16 modules
Slave
Master
Slave

MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Features 5
When unit is under protection
If master unit’s protection happens, this unit will stop but the others will keep running.
If slave unit’s protection happens, this unit will stop but the others will keep running.
( Except PE, P9 protection happens)
PE：Low temperature protection of evaporator.
P9：Outlet and inlet water temperature difference protection.
4.4 Alternative cycle duty operation
In one combination, all slave units operate as alternative in cycle duty to keep equal running time,
realize higher stability, better reliability and longer lifespan.
(For example, five modules combination, no.1 is master unit, others are slave units.)
1345
2
12345
13245
4.5 Intelligent defrosting technology
T min Time
saving
Time
Heating capacity
Midea Fast Defrosting Traditional defrosting
7 minutes less！
Model alternate defrosting, small fluctuation for water temperature
Manual defrosting program for service purpose (10S Pressing the check button)
4.6 High efficiency heat exchange technology
The chiller adopts inner grooved copper tube and hydrophilic aluminum foil，greatly improve the heat
exchange efficiency.
Slave
Master

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
6 Features
Hydrophilic aluminum foil
Inner grooved copper tube
4.7 EXV more precisely flow control
Patented liquid distribution components to maximize performance and minimize defrost impact.
500 steps EXV plus capillary for stable and accurate gas flow control.
Fast respond resulting in higher efficiency and improved reliability.
10%
15%
20%
25%
30%
35%
40%
45%
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
4.8 Reliable protections
Many kinds of protection are adopted to make sure the safe running for chiller.
Power phases
sequence protection Frequently ON/OFF
protection of compressor
System anti-freezing
protection in winter
Evaporator lowtemperature
protection in cooling
Over-current protection
of compresor Airdischargetemperature
protectionof compressor Sensor malfunction protection
Waterflowprotection
System high temperature
protection
High/low pressure
protection of compressor
4.9 Easy transportation and installation
Air cooled scroll chiller structure is compact, light weight, easy transportation and installation, no need
cooling water tower, significant cost-savings.
Easy to transport
No need water cooling tower

MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Features 7
4.10 Applicable temperature range
Mode
Ambient temperature range
Water outlet temperature range
Cooling
-10˚C ~46˚C
0˚C ~17˚C (7˚C is default, less than 5 ˚C must add the antifreeze, SS
series.)
5˚C ~17˚C（SP series）
Heating
-15˚C ~24˚C
25˚C ~50˚C (45˚C is default)
Chilled outlet water temperature can be adjusted by wired controller according to customer’s demand.
SS series
4.11 Double pipe&shell and tube heat exchanger
Chilled water inlet
Refrigerant inlet
Chilled water outlet
Refrigerant outlet
Flat baffle plate
Helical baffle
Waterdeadzone
For shell-tube heat exchanger, the module adopts the new helical baffle design to avoid the rectangular
place of water dead zone, greatly improve the heat exchange efficiency.
SP series
4.12 Plate heat exchanger
By adopting high efficiency plate heat exchanger, the energy consumption can be reduced.
-15 ˚C
Ambient temp. range
-10 ˚C
-5 ˚C
0 ˚C
5 ˚C
10 ˚C 15 ˚C 20 ˚C 25 ˚C
30˚C
35 ˚C
40 ˚C
45 ˚C
Cooling range
-10 ˚C
46˚C
Heating range
-15 ˚C
24 ˚C
Water outlet temp. range
5 ˚C
17 ˚C
50 ˚C
0 ˚C
17 ˚C
Heating range
Cooling range
25 ˚C
0 ˚C
50 ˚C
50 ˚C
25 ˚C

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
8 Features
4.13 Built-in hydraulic module
The modules are fully integrated and built-in hydraulic module, such as expansion tank, plate heat
exchanger, water circulating pump, etc. It saves installation space and cost.
(Available for MDC-SP25M-RN1L &MDC-SP35M-RN1L)
Auxiliary electric heater
Terminal
Two-way valve
Drain valve
Plate heat
exchanger
Drain valve
Three-way valve
Water charge valve
0.15MPa< Water
replenishing pres<0.6MPa
Differential pressure
by-pass valve
Stop valve Pressure gauge Water flow switch Gate valve
Flexible joint
Y-shaped filter Thermometer Circulating pump Check valve Automatic discharge valve
Differential pressure
by-pass valve
Safety valve
Expansion vessel

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Specifications 9
5．Specifications
SS series
Model
MDC
-SS35/RN1L
MDC
-SS65/RN1L
Cooling Capacity
kW
35
65
Heating Capacity
kW
37
69
Power input
Cooling
kW
11.5
20.4
Cooling rated current
A
19.0
36.5
Heating
kW
11.3
21.5
Heating rated current
A
20.0
37.2
EER
kW / kW
3.04
3.19
COP
kW / kW
3.27
3.21
Power supply
V/Ph/Hz
380-415/3/50
380-415/3/50
Power supply
Manual switch
A
50
125
Fuse
A 36
100
Max. Input consumption
kW 14
29
Max. Current
A 27
54.5
Compressor
Type
Scroll (fixed speed)
Scroll (fixed speed)
Brand
Danfoss
Danfoss
Model
SH140A4ALC
CH290A4BBA
Quantity
Piece 1
1
Capacity
kW 36.8
65.1
Input
kW 11.3
20.4
Rate load Amps.(RLA)
A
21.4
44.3
Locked rotor Amp(LRA)
A
147
260
Refrigerant oil
ml
3300
6700
Refrigerant
Type
R410A
R410A
Refrigerant control
EXV+ capillary
EXV+ capillary
Weight
kg
5.4
11.5
Condenser (Air
side)
Type
Fin-coil
Fin-coil
Number of rows
2
2
Fan motor model
YDK550-6E
YDK550-6E
Quantity of fan motor
Pieces
1
2
Air flow
×103m3/h
13.5
27
Fan motor rated current
A
3.7
3.7×2
Fan motor input
kW
0.8
0.8×2
Evaporator
(Water side)
Type
Double-pipe
Shell-tube
Water pressure drop
kPa
55
30
Volume
L
10
35
Water inlet/outlet pipeline
inside normal diameter
mm
DN40
DN65
Water flow volume
m3/h
6
11.2
Max. design pressure
MPa
1
1
Water pipe connection type
Flexible joint(Flange)
Flexible joint(Flange)
Dimension
Net(D×H×W)
mm
1020×1770×980
2000×1770×960

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
10 Specifications
Packing size(D×H×W)
mm 1070×1900×1030
2090×1890×1030
Weight
Net weight
kg 320
530
Operation weight
kg
330
590
Connection
wiring
Power wire
mm2
10×4+16×1
35×4+16×1
Signal wire
mm2
0.75×3-core with shielding
0.75×3-core with shielding
Control type
Wired controller
Wired controller
Safety protection device
1) Protection for over-high discharge pressure.
2) Protection for over-low suction pressure.
3) Power supply phase sequence protection.
4) Anti-freezing protection in cooling mode.
5) Anti-freezing protection in Winter.
6) Protection for compressor over current.
7) Protection for compressor overload.
8) Outlet and inlet water temperature difference protection.
9) Compressor discharge temperature protection.
10) Water flow cut-off protection.
11) Sensor malfunction protection.
12) Low ambient temperature drive-up protection
13) Low temperature protection of shell and tube heat
exchanger.
Noise level
dB(A) 65
67
Operation water temp
℃Cooling：0～17(Less than 5℃must add antifreeze)
Heating：25～50
Ambient temp
℃Cooling：-10～46 Heating：-15～24
Note: Specifications are based on the following conditions:
Cooling : chilled water inlet/outlet: 12˚C / 7˚C, and outdoor ambient temp. of 35°C DB.
Heating : heat water inlet/outlet: 40˚C / 45˚C, and outdoor ambient temp. 7˚C DB/6°C WB.
Water side fouling factor: 0.086m2˚C /kW.