MDV MDC-SS35/RN1L, MDC-SS65/RN1L, Aqua Tempo Super, MDC-SS80/RN1L, MDC-SS130/RN1 User Manual

MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Content i
Content
1Nomenclature ................................................................. 2
2Product Lineup ............................................................... 2
3. External Appearance ..................................................... 3
4Features .......................................................................... 4
6Dimensions ................................................................... 17
7Refrigeration System Sketch Drawing ....................... 20
8Wiring Diagrams ........................................................... 22
9Electric Characteristics ............................................... 35
10Capacity Tables .......................................................... 36
11Exploded View ............................................................ 54
12Trouble Shooting ........................................................ 72
13Installation .................................................................. 84
14Commissioning ........................................................ 101
15Maintenance ............................................................. 102
16Control 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
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
1Nomenclature
MD C - S P 35 M - R N1 L
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
2Product Lineup
SS series
2 Nomenclature&Product Lineup
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
3. External Appearance
25/35kW module 65/80kW module
130kW module
External appearance 3
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
130kW
130kW
2080kW
Max. 16 modules
Slave
Master
Slave
4Features
4.1 New structure design
The module adopts new structure design, H shape condenser, 360O air 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.
Features 4
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Slave
Master
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)
PELow 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.)
1
2
3
4
4.5 Intelligent defrosting technology
Midea Fast Defrosting
Heatingcapacity
T min
5
Time saving
1
3
2
Traditional defrosting
4
5
1
3
4
2
5
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 foilgreatly improve the heat exchange efficiency.
Features 5
Time
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Easy to transport
No need water cooling tower
Inner grooved copper tube
Hydrophilicaluminum foil
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.
100%
95%
90% 85% 80%
75%
70% 65% 60% 55%
50%
45% 40% 35% 30% 25%
20%
15% 10%
4.8 Reliable protections
Many kinds of protection are adopted to make sure the safe running for chiller.
High/lowpressure
protection of compressor
Over-curre ntprotection
of compresor
Power phases
sequence protection
Airdischarge temperature
protectionof compressor
Evaporator low temperature
protection in cooling
Systemhigh temperature
protection
System anti-freezing
protection in winter
Waterflow protection
Frequently ON/OFF
protection of compressor
Sensor malfunction protection
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.
6 Features
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Mode
Ambient 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˚CSP series
Heating
-15˚C ~24˚C
25˚C ~50˚C (45˚C is default)
Refrigerant inlet
-15 ˚C
Ambient temp. range
-10 ˚C
-5 ˚C
0 ˚C
5 ˚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
50 ˚C
0 ˚C
Heating range
Cooling range
25 ˚C
0 ˚C
50 ˚C
50 ˚C
4.10 Applicable temperature range
Water outlet temperature range
10 ˚C 15 ˚C
20 ˚C
25 ˚C
Chilled outlet water temperature can be adjusted by wired controller according to customer’s demand.
17 ˚C
17 ˚C
25 ˚C
SS series
4.11 Double pipe&shell and tube heat exchanger
Chilled water inlet
Water deadzone
Flat baffle plate
Refrigerant outlet
Helical baffle
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.
Features 7
Chilled water outlet
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
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)
Water charge valve
0.15MPa< Water replenishing pres<0.6MPa
Plate heat exchanger
Auxiliary electric heater
Stop valve Pressure gauge Water flow switch Gate valve
Y-shaped filter Thermometer Circulating pump Check valve Automatic discharge valve
Expansion vessel
Safety valve
Flexible joint
Differential pressure
by-pass valve
Drain valve
Drain valve
Differential pressure by-pass valve
Terminal
Two-way valve
Three-way valve
8 Features
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
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
100
Max. Input consumption
29
Max. Current
54.5
Compressor
Type
Scroll (fixed speed)
Brand
Danfoss
Model
CH290A4BBA
Quantity
1
Capacity
65.1
Input
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
5Specifications
SS series
A 36 kW 14 A 27
Scroll (fixed speed)
Piece kW kW
Danfoss
SH140A4ALC
1
36.8
11.3
Specifications 9
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Packing size(D×H×W)
2090×1890×1030
Weight Net weight
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
Noise level
67
Operation water temp
Ambient temp
mm 1070×1900×1030 kg 320
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.
dB(A) 65
Cooling-1046 Heating-1524
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.
Cooling017(Less than 5 must add antifreeze) Heating2550
10 Specifications
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Model
MDC
-SS130/RN1
Cooling Capacity
kW
80
130
Heating Capacity
kW
85
138
Power input
Cooling
kW
25.8
42.3
Cooling rated current
A
43.8
73
Heating
kW
26.5
43
Heating rated current
A
40.0
74.4
EER
kW / kW
3.1
3.07
COP
kW / kW
3.21
3.21
Power supply
V/Ph/Hz
380-415/3/50
380-415/3/50
Power supply
Manual switch A 150
200
Fuse
A
100
150
Max. Input consumption
kW
34.6
59
Max. Current
109
Compressor
Type
Scroll (fixed speed)
Brand
Danfoss
Model
CH290A4BBA
Quantity
2
Capacity
65.1
Input
20.5
Rate load Amps.(RLA)
44.3
Locked rotor Amp(LRA)
260
Refrigerant oil
6700
Refrigerant Type
R410A
R410A
Refrigerant control
EXV+ capillary
EXV+ capillary
Weight
kg
6.5×2
10.5×2
Condenser (Air side)
Type
Fin-coil
Fin-coil
Number of rows
2
3
Fan motor model
YDK550-6E
YS2000-6A
Quantity of fan motor
Pieces
2
2
Air flow
×103m3/h
27
50
Fan motor rated current
A
3.7×2
4.8×2
Fan motor input
kW
0.8×2
2.59×2
Evaporator (Water side)
Type
Shell-tube
Shell-tube
Water pressure drop
kPa
30
40
Volume
L
47.5
60
Water inlet/outlet pipeline inside normal diameter
mm
DN65
DN65
Water flow volume
m3/h
13.8
22.4
Max. design pressure
MPa
1
1
Water pipe connection type
Flexible joint(Flange)
Flexible joint(Flange)
Dimension Net(D×H×W)
mm
2000×1770×960
2200×2060×1120
Packing size(D×H×W)
mm
2090×1890×1030
2250×2200×1180
Weight Net weight
kg
645
935
Operation weight
kg
710
1005
MDC-SS80/RN1L
A 65
Scroll (fixed speed)
Danfoss
SH184A4ALC
Pieces kW kW A
A ml 3600
2
44.7
13.7
27.6 197
Specifications 11
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Connection wiring
Power wire
35×4+16×1
Signal wire
0.75×3-core with shielding
Control type
Wired controller
Wired controller
Safety protection device
Noise level
68
Operation water temp
Ambient temp
mm2 25×4+16×1 mm2 0.75×3-core with shielding
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.
dB(A) 67
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.
Cooling017(Less than 5 must add antifreeze) Heating2550
Cooling -10 46 Heating
-1524
Cooling:1546 Heating:-15
24
12 Specifications
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
C
Model
A B C D E F G
H
MDC
-SS25/RN1L
MDC
-SP25M-RN1L
MDC
-SS35/RN1L
1020
980
1770
237
400
250
210
570
6Dimensions
25/35kW module
F
D
E
A
G
H
B
Unit: mm
Dimensions 17
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
F
Model
E F G
H
MDC
-SS65/RN1L
MDC
-SS80/RN1L
2000
960
1770
336
1420
506
1460
862
65/80kW module
D
Unit: mm
E
C
A
Front view Side view
A B C D
B
18 Dimensions
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
F
Model
A B C D E F G H MDC
-SS130/RN1
2200
1120
2060
390
1420
347
1460
1017
H
130kW module
A
G
C
D
E
A
Hole for anchor boltΦ15
Front view
B
Top view
Unit: mm
Dimensions 19
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
7Refrigeration System Sketch Drawing
SS series
7.1 35kW module refrigeration system sketch drawing
Each module has one compressor with one separate unit, one refrigerant system.
Fan
Condenser
4-way valve
Compressor
Water outlet
Water inlet
Capillary Evaporator (Double-pipe heat exchanger)
Low pressure cylinder
EXV
7.2 65/80kW module refrigeration system sketch drawing
Each module has one compressor with one separate unit, one refrigerant system.
Fan
EXV
Shell and tube
heat exchanger
Compressor
Condenser
4-Way valve
Capillary
Water flow direction
Dry type evaporator
low pressure cylinder
20 Refrigeration System Sketch Drawing
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Compressor B
7.3 130kW module refrigeration system sketch drawing
Each module has two compressors with one unit, one shell-tube evaporator for two refrigerant systems.
low pressure cylinder B
4-Way valve B
Fan B
Fan A
Condenser
4-Way valve A
Capillary
Capillary
EXV
EXV
Shell and tube
Water flow direction
Dry type evaporator
heat exchanger
low pressure cylinder A
Refrigeration System Sketch Drawing 21
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
8Wiring Diagrams
8.1 Wiring Diagrams SS series
MDC-SS35/RN1L
22 Wiring Diagrams
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
MDC-SS65/RN1L
Wiring Diagrams 23
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
MDC -SS80/RN1L
24 Wiring Diagrams
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
MDC -SS130/RN1
Wiring Diagrams 25
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
8.2 Networking Communication Schematic SS series
Wiring Diagrams 31
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Model
Outdoor Unit
Power Supply
Compressor
OFM
Hz
Voltage
Min.
Max.
TOCA
MFA
LRA
RLA
kW
FLA
MDC
-SS35/RN1L
50
380-415
342
456
27
36
147
21.4
0.8
3.7
MDC
-SS65/RN1L
50
380-415
342
456
54.5
100
260
44.3
0.8
3.7
MDC
-SS80/RN1L
50
380-415
342
456
65
100
197
27.6
0.8(×2)
3.7(×2)
MDC
-SS130/RN1
50
380-415
342
456
109
150
260
44.3
2.59(×2)
4.8(×2)
9Electric Characteristics
SS series
Remark:
TOCA: Total Over-current Amps. (A) MFA: Max. Fuse Amps. (A) LRA: Locked Rotor Amps. (A) RLA: Rated Locked Amps. (A) OFM: Outdoor Fan Motor. FLA: Full Load Amps. (A) kW: Rated Motor Input (kW)
Electric Characteristics 35
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Chilled water outlet
temp.
Ambient temp.()
21.00
25.00
30.00
35.00
40.00
46.00
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
5.00
39.18
10.13
36.90
32.90
11.10
30.83
11.65
28.36
12.23
6.00
40.51
10.29
38.11
33.92
11.27
31.81
11.83
29.30
12.43
7.00
41.92
10.50
39.40
35.00
11.50
32.87
12.08
30.30
12.68
8.00
43.22
10.81
40.58
35.98
11.85
33.82
12.44
31.22
13.06
9.00
44.44
10.92
41.68
11.25
39.18
11.60
36.89
11.96
34.71
12.56
32.08
13.19
10.00
46.12
11.08
43.22
11.42
40.59
11.78
38.18
12.14
35.97
12.75
33.27
13.38
11.00
47.41
11.19
44.39
11.53
41.64
11.89
39.14
12.26
36.90
12.87
34.17
13.52
12.00
48.49
11.35
45.36
11.70
42.51
12.07
39.92
12.44
37.68
13.06
34.93
13.71
13.00
49.36
11.44
46.13
11.80
43.19
12.16
40.52
12.54
38.29
13.16
35.53
13.82
14.00
50.58
11.52
47.23
11.88
44.18
12.25
41.41
12.62
39.17
13.26
36.39
13.92
15.00
51.23
11.58
47.79
11.94
44.67
12.31
41.82
12.69
39.61
13.32
36.83
13.99
16.00
52.51
11.70
48.94
12.06
45.69
12.43
42.74
12.81
40.52
13.46
37.72
14.13
17.00
53.18
11.75
49.52
12.12
46.19
12.49
43.17
12.88
40.97
13.52
38.18
14.20
10Capacity Tables
10.1 Cooling SS series
MDC-SS35/RN1L
kW kW kW
10.44 34.81 10.76
10.60 35.92 10.93
10.82 37.10 11.16
11.14 38.17 11.49
Note:
The inlet/outlet water temperature difference is 5.
36 Capacity Tables
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
37
Chilled water
outlet temp.
Ambient temp.()
21.00
25.00
30.00
35.00
40.00
46.00
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
5.00
72.77
17.97
68.52
18.52
64.64
19.10
61.10
19.69
57.25
20.67
52.67
21.70
6.00
75.23
18.25
70.77
18.81
66.70
19.39
62.99
19.99
59.08
20.99
54.41
22.04
7.00
77.85
18.62
73.17
19.19
68.90
19.79
65.00
20.40
61.04
21.42
56.27
22.49
8.00
80.26
19.18
75.36
66.82
21.01
62.81
22.06
57.97
23.17
9.00
82.52
19.36
77.41
68.51
21.22
64.47
22.28
59.57
23.39
10.00
85.65
19.65
80.27
70.91
21.53
66.80
22.61
61.79
23.74
11.00
88.04
19.85
82.44
72.68
21.75
68.54
22.83
63.47
23.98
12.00
90.06
20.14
84.24
74.13
22.06
69.98
23.17
64.87
24.33
13.00
91.66
20.30
85.67
20.93
80.21
21.57
75.25
22.24
71.11
23.35
65.99
24.52
14.00
93.94
20.44
87.72
21.07
82.05
21.72
76.90
22.40
72.75
23.52
67.58
24.69
15.00
95.15
20.54
88.76
21.18
82.95
21.83
77.67
22.51
73.55
23.63
68.41
24.81
16.00
97.52
20.75
90.88
21.39
84.86
22.05
79.38
22.73
75.25
23.87
70.06
25.06
17.00
98.77
20.85
91.96
21.49
85.79
22.16
80.17
22.84
76.08
23.99
70.91
25.18
MDC-SS65/RN1L
19.77 70.90 20.38
19.96 72.76 20.58
20.26 75.38 20.89
20.46 77.33 21.09
20.76 78.95 21.40
Note:
The inlet/outlet water temperature difference is 5.
Capacity Tables
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Chilled water
outlet temp.
Ambient temp.()
21.00
25.00
30.00
35.00
40.00
46.00
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
5.00
89.56
22.72
84.34
23.43
79.56
24.15
75.20
24.90
70.46
26.14
64.83
27.45
6.00
92.59
23.08
87.10
23.79
82.09
24.53
77.52
25.28
72.71
26.55
66.97
27.88
7.00
95.82
23.55
90.06
80.00
25.80
75.12
27.09
69.26
28.44
8.00
98.78
24.25
92.75
82.24
26.57
77.31
27.90
71.35
29.30
9.00
101.57
24.49
95.28
84.32
26.83
79.35
28.17
73.31
29.58
10.00
105.42
24.86
98.80
87.27
27.23
82.21
28.60
76.04
30.03
11.00
108.36
25.10
101.46
89.45
27.50
84.35
28.88
78.11
30.32
12.00
110.84
25.47
103.68
91.24
27.91
86.13
29.30
79.84
30.77
13.00
112.82
25.67
105.44
26.47
98.72
27.28
92.61
28.13
87.52
29.53
81.22
31.01
14.00
115.62
25.85
107.96
26.65
100.99
27.47
94.65
28.32
89.54
29.74
83.18
31.23
15.00
117.11
25.98
109.24
26.78
102.10
27.61
95.59
28.46
90.53
29.89
84.19
31.38
16.00
120.02
26.24
111.85
27.05
104.44
27.89
97.70
28.75
92.62
30.19
86.23
31.70
17.00
121.56
26.37
113.18
27.18
105.58
28.02
98.67
28.89
93.64
30.33
87.27
31.85
MDC-SS80/RN1L
24.28 84.80 25.03
25.00 87.26 25.78
25.25 89.55 26.03
25.62 92.77 26.42
25.88 95.18 26.68
26.26 97.17 27.07
Note:
The inlet/outlet water temperature difference is 5.
38 Capacity Tables
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
39
Chilled water outlet
temp.
Ambient temp.()
21.00
25.00
30.00
35.00
40.00
46.00
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
5.00
145.54
37.25
137.04
38.41
129.29
39.59
122.20
40.82
114.50
42.86
105.34
45.00
6.00
150.46
37.83
141.54
39.00
133.40
40.21
125.97
41.45
118.16
43.53
108.83
45.70
7.00
155.71
38.61
146.34
130.00
42.30
122.07
44.42
112.55
46.64
8.00
160.52
39.76
150.72
133.64
43.57
125.62
45.75
115.95
48.03
9.00
165.05
40.15
154.83
137.02
43.99
128.94
46.19
119.14
48.50
10.00
171.31
40.75
160.55
141.82
44.65
133.59
46.88
123.57
49.23
11.00
176.08
41.15
164.87
145.36
45.09
137.08
47.35
126.93
49.71
12.00
180.11
41.76
168.49
43.05
157.91
44.38
148.27
45.75
139.97
48.04
129.75
50.44
13.00
183.33
42.09
171.33
43.39
160.42
44.73
150.49
46.12
142.22
48.42
131.98
50.84
14.00
187.89
42.38
175.43
43.69
164.11
45.04
153.80
46.44
145.50
48.76
135.17
51.20
15.00
190.30
42.59
177.52
43.91
165.90
45.27
155.34
46.67
147.11
49.00
136.81
51.45
16.00
195.03
43.02
181.76
44.35
169.71
45.72
158.76
47.13
150.50
49.49
140.12
51.97
17.00
197.53
43.23
183.92
44.57
171.57
45.95
160.35
47.37
152.17
49.74
141.82
52.22
MDC-SS130/RN1L
39.80 137.80 41.03
40.99 141.79 42.26
41.39 145.52 42.67
42.01 150.75 43.31
42.43 154.66 43.74
Note:
The inlet/outlet water temperature difference is 5.
Capacity Tables
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
45
Hot water
outlet temp.
Ambient temp.()
-10
-6
-2 2 7
10
13
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
40.00
22.95
7.07
28.69
8.03
33.75
8.93
37.51
9.70
40.77
10.21
45.66
10.83
52.51
11.69
41.00
22.23
7.21
27.82
8.20
39.66
10.42
44.34
11.05
50.90
11.93
42.00
21.58
7.36
27.05
8.37
38.69
10.64
43.18
11.27
49.48
12.18
43.00
21.06
7.51
26.43
8.54
37.93
10.85
42.25
11.50
48.34
12.42
44.00
20.65
7.67
25.95
8.71
37.37
11.07
41.56
11.74
47.46
12.68
45.00
20.35
7.82
25.60
8.89
37.00
11.30
41.07
11.98
46.82
12.94
46.00
19.96
7.90
25.13
8.98
29.78
9.97
33.31
10.84
36.45
11.41
40.38
12.10
45.95
13.07
47.00
19.37
8.06
24.42
9.16
28.97
10.17
32.44
11.06
35.53
11.64
39.30
12.34
44.65
13.33
48.00
18.60
8.30
23.49
9.43
27.90
10.48
31.27
11.39
34.29
11.99
37.86
12.71
42.93
13.73
49.00
17.59
8.63
22.24
9.81
26.44
10.90
29.68
11.85
32.58
12.47
35.90
13.22
40.64
14.28
50.00
16.46
9.06
20.83
10.30
24.80
11.44
27.87
12.44
30.62
13.09
33.68
13.88
38.06
14.99
10.2 Heating SS series
MDC-SS35/RN1L
32.76 9.11 36.44 9.90
31.89 9.30 35.52 10.10
31.20 9.49 34.78 10.31
30.67 9.68 34.23 10.52
30.30 9.88 33.86 10.74
Note:
The inlet/outlet water temperature difference is 5.
Capacity Tables
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Hot water outlet
temp.
Ambient temp.()
-10
-6
-2 2 7
10
13
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
40.00
42.80
13.45
53.51
15.29
62.95
16.99
69.94
18.46
76.02
19.43
85.15
20.60
97.92
22.25
41.00
41.45
13.73
51.87
15.60
61.10
17.33
67.96
18.84
73.95
19.83
82.68
21.02
94.92
22.70
42.00
40.25
14.01
50.44
15.92
59.48
17.69
66.23
19.22
72.15
20.24
80.52
21.45
92.28
23.17
43.00
39.28
14.29
49.28
19.62
70.74
20.65
78.80
21.89
90.15
23.64
44.00
38.52
14.58
48.39
20.02
69.69
21.07
77.50
22.33
88.50
24.12
45.00
37.96
14.88
47.75
20.43
69.00
21.50
76.59
22.79
87.31
24.61
46.00
37.22
15.03
46.87
20.63
67.97
21.72
75.31
23.02
85.70
24.86
47.00
36.12
15.33
45.54
21.04
66.27
22.15
73.29
23.48
83.26
25.36
48.00
34.69
15.79
43.80
17.95
52.02
19.94
58.32
21.67
63.95
22.81
70.60
24.18
80.06
26.12
49.00
32.80
16.42
41.47
18.66
49.31
20.74
55.34
22.54
60.75
23.73
66.95
25.15
75.78
27.16
50.00
30.69
17.24
38.85
19.60
46.25
21.77
51.96
23.67
57.10
24.91
62.81
26.41
70.98
28.52
MDC-SS65/RN1L
16.24 58.18 18.05 64.86
16.57 57.20 18.42 63.84
16.91 56.51 18.79 63.14
17.08 55.54 18.98 62.12
17.42 54.03 19.36 60.50
Note:
The inlet/outlet water temperature difference is 5.
46 Capacity Tables
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
47
Hot water outlet
temp.
Ambient temp.()
-10
-6
-2 2 7
10
13
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
40.00
52.73
16.58
65.91
18.84
77.55
20.94
86.16
22.76
93.65
23.95
104.89
25.39
120.63
27.42
41.00
51.06
16.92
63.90
19.23
75.27
21.36
83.72
23.22
91.10
24.44
101.85
25.91
116.93
27.98
42.00
49.58
17.26
62.13
19.62
73.27
21.80
81.59
23.69
88.88
24.94
99.19
26.44
113.67
28.55
43.00
48.38
17.62
60.71
20.02
24.18
87.14
25.45
97.07
26.98
111.05
29.14
44.00
47.45
17.98
59.61
20.43
24.67
85.85
25.97
95.47
27.53
109.02
29.73
45.00
46.76
18.34
58.82
20.84
25.18
85.00
26.50
94.35
28.09
107.56
30.34
46.00
45.85
18.53
57.74
21.05
25.43
83.73
26.77
92.77
28.37
105.57
30.64
47.00
44.49
18.90
56.11
21.47
25.94
81.63
27.30
90.28
28.94
102.56
31.25
48.00
42.74
19.46
53.96
22.12
64.08
24.58
71.84
26.71
78.77
28.12
86.97
29.81
98.62
32.19
49.00
40.41
20.24
51.09
23.00
60.74
25.56
68.18
27.78
74.84
29.24
82.47
31.00
93.36
33.48
50.00
37.81
21.26
47.86
24.15
56.97
26.84
64.01
29.17
70.35
30.71
77.38
32.55
87.44
35.15
MDC-SS80/RN1L
71.68 22.24 79.91
70.46 22.70 78.64
69.61 23.16 77.78
68.41 23.39 76.52
66.56 23.86 74.53
Note:
The inlet/outlet water temperature difference is 5.
Capacity Tables
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Hot water outlet temp.
Ambient temp.()
-10
-6
-2 2 7
10
13
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
Capacity
Power
()
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
40.00
85.61
26.91
107.01
30.57
125.90
33.97
139.89
36.93
152.05
38.87
170.29
41.20
195.84
44.50
41.00
82.89
27.45
103.75
31.20
122.20
34.66
135.93
37.68
147.91
39.66
165.36
42.04
189.83
45.40
42.00
80.50
28.01
100.87
31.83
118.96
35.37
132.47
38.45
144.30
40.47
161.04
42.90
184.55
46.33
43.00
78.55
28.59
98.56
39.23
141.47
41.30
157.60
43.78
180.29
47.28
44.00
77.03
29.17
96.78
40.03
139.38
42.14
154.99
44.67
177.00
48.24
45.00
75.92
29.76
95.49
40.85
138.00
43.00
153.18
45.58
174.63
49.23
46.00
74.43
30.06
93.74
41.26
135.93
43.43
150.61
46.04
171.39
49.72
47.00
72.23
30.66
91.09
42.08
132.53
44.30
146.58
46.96
166.52
50.71
48.00
69.38
31.58
87.60
35.89
104.04
39.88
116.64
43.35
127.89
45.63
141.19
48.37
160.11
52.23
49.00
65.61
32.85
82.94
37.33
98.62
41.47
110.69
45.08
121.50
47.45
133.89
50.30
151.56
54.32
50.00
61.38
34.49
77.70
39.19
92.50
43.55
103.93
47.33
114.21
49.83
125.63
52.81
141.96
57.04
MDC-SS130/RN1L
32.48 116.37 36.09 129.73
33.15 114.39 36.83 127.67
33.82 113.01 37.58 126.27
34.16 111.07 37.96 124.24
34.85 108.05 38.72 121.00
Note:
The inlet/outlet water temperature difference is 5.
48 Capacity Tables
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
11Exploded View
SS series
MDC-SS35/RN1L
54 Exploded View
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
55
No.
Part Name
Part Name
Qty
1
Bottom panel II ass'y
Outdoor electrical box ass'y
1
2
Column
AC contactor
1
3
Gas-liquid separator
1
14.2
Terminal block
1
4
Suction pipe ass'y
1
14.3
Wire joint
1
5
Compressor
1
14.5
Capacitor
1
6
Condenser's guard plate I ass'y
1
14.6
Transformer
1
7
Condenser's guard plate III ass'y
2
14.7
Relay
1
8
Condenser hoisting parts
1
14.9
Low temp. cooling module ass'y
1
8.2
Upper frame welded parts
1
14.10
E-heater control board ass'y
1
8.3
Install base welding parts of water pan
1
14.11
Outdoor main board ass'y
1
8.4
Seal plate
1
14.12
Welded parts of electrical box
1
8.5
Water pan
1
15
Welded parts of base
1
8.6
Support ass'y of motor
1
16
Double pipe heat exchanger
1
8.7
Top cover ass'y
1
17
Four-way valve ass'y
1
8.8
Outlet net cover
1
17.1
4-way valve
1
8.9
Condenser parts
1
17.2
Meter connector
2
8.10
Asynchronous motor
1
17.3
Pressure switch
1
9
Condenser's guard plate II ass'y
1
18
Bottom panel I ass'y
1
10
Bottom panel III ass'y
1
19
Total water temperature mouth components
1
11
Input pipe ass'y of evaporator
1
20
Indoor temp. sensor ass'y
1
11.2
Electronic expansion valve
1
21
Pipe temp. sensor ass'y
1
12
Fixed panel board
1
22
Pipe temp. sensor ass'y
5
13
Piping support plate
1
Qty No.
2 14 4 14.1
Exploded View
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
MDC-SS65/RN1L
56 Exploded View
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
57
No.
Part Name
Qty
1
Column
1
2
Gas-liquid separator
2
3
Throttle part
2
3.1
Electronic expansion valve
1
3.2
Strainer
1
4
Pipe support
1
5
Shell-tube evaporator
1
6
Four-way valve ass'y
1
18.4
Low ambient temp. cooling kit ass'y
1
6.1
4-way valve
1
18.5
Outdoor main board ass'y
1
6.2
Pressure controller
1
18.6
Signal board of outdoor main board ass'y
1
6.3
Pressure switch
1
18.7
Electrical installation plate parts
1
7
Suction pipe ass'y
1
18.8
Terminal block
2
7.1
Pressure controller
1
18.9
Terminal block, 4P
1
8
Output pipe ass'y of condenser
1
18.10
AC contactor
1
9
Panel connection plate
2
18.11
Transformer
1
10
Compressor(fixed)
1
18.12
Current transformer
2
11
Base of welded parts
1
18.13
Capacitor
2
12
Top left panel ass'y
1
18.14
Auxiliary board ass'y of relay
1
13
The middle plate
2
19
Side panel ass'y
2
14
Front right panel ass'y
1
20
Refrigerant
11.5
15
Condenser hoisting parts
1
21
Electrical box door
1
15.1
Condenser sub-ass'y
2
22
Four-way valve coil
1
15.1.1
Condenser ass'y
1
23
EEV solenoid coil
1
15.1.2
Flute tube ass'y
1
24
Total water temperature mouth components
1
15.1.3
Distributor ass'y
1
25
Room temp sensor ass'y T41
1
15.2
Support ass'y of motor
2
26
Pipe temp. sensor ass'y
3
15.3
Motor
2
27
Pipe temp. sensor ass'y
3
15.4
Axial propeller
2
28
Pipe temp. sensor ass'y
2
15.5
Connection plate ass'y of condenser
2
29
temperature controller of the discharge pipe side
1
15.6
Top cover ass'y
2
30
Compressor electric heater
1
15.7
Water pan
2
31
Wired controller
1
15.8
Upper frame welded parts
1
Qty No. Part Name
4 15.9 1 16 1 17 1 18 2 18.1 1 18.2 1 18.3
Middle frame welded parts Outlet net cover Rear panel ass'y Outdoor electrical box ass'y Electrical box welded parts Outdoor current detection board ass'y Low temp. cooling module ass'y
Exploded View
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
MDC-SS80/RN1L
58 Exploded View
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
59
No.
Part Name
Part Name
Qty
1
Column
Auxiliary plate ass'y of relay
1
2
Suction pipe ass'y
Outdoor main board ass'y
1
3
Base welded parts
AC contactor
2
4
Gas-liquid separator
Transformer
1
5
Compressor
current transformer
2
6
Pipe support IV
Wire joint, 5p
1
7
Front panel ass'y
Wire joint
1
8
The middle plate
1
18.9
Terminal block
2
9
Electrical maintenance board
1
18.10
Terminal block
1
10
Electric control box of the door
1
18.11
Capacitor
2
11
Throttle parts I
1
19
4-way valve ass'y II
1
11.1
Electronic expansion valve
1
19.1
Four-way valve kit (RoHS)
1
12
Side panel ass'y
2
19.2
Pressure controller
1
13
Panel connection plate
2
19.3
Pressure controller
1
14
4-way valve ass'y I
1
20
Throttle parts II
1
14.1
Four-way valve kit (RoHS)
1
20.1
Electronic expansion valve
1
14.2
Pressure switch
1
21
Shell and tube evaporator
1
14.3
Pressure controller
1
22
Middle backplate
1
15
Hoisting parts of condenser
1
23
Front-left panel ass'y
1
15.1
Middle frame welded parts
1
24
Front-right panel ass'y
1
15.2
Connection plate ass'y of condenser
2
25
EEV solenoid coil
1
15.3
Water pan
2
26
Electronic expansion valve coil
1
15.4
Condenser parts
2
27
R410A
13
15.5
Support ass'y of motor
2
28
Total water temperature mouth components
1
15.6
Asynchronous motor
2
29
Wired controller
1
15.7
Axial fan
2
30
Pipe fixing clamp
2
15.8
Outlet net cover
2
31
Pipe clamp B
2
15.9
Top cover ass'y
2
32
Pipe clamp B
1
15.10
Upper frame welded parts
1
33
Sealplate
2
16
Pipe support II
1
34
Cover of wire slot
1
17
Pipe support I
2
35
Compressor support ass'y
2
18
Outdoor electric control box ass'y
1
36
Pipe support III
1
18.1
Outdoor main control board ass'y
1
37
Wire slot ass'y
1
Qty No.
4 18.2 2 18.3 1 18.4 2 18.5 2 18.6 1 18.7 2 18.8
Exploded View
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
MDC-SS130/RN1
60 Exploded View
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
61
No.
Part Name
Part Name
Qty
1
Condenser hoisting parts
Terminal block
3
1.1
Upper frame ass'y
Outdoor unit Fan relay control board
1
1.2
Motor(three-phase asynchronous)
AC contactor
2
1.3
Axial-flow fan
Transformer
1
1.4
Out of wind net
Electronic installation board ass'y
1
1.5
Axial-flow fan
Electrical box door
1
1.6
Top cover ass'y
Under rain-proof baffle
1
1.7
Motor bracket ass'y
2
9
Column
4
1.8
Connection plate welded parts of condenser
2
10
Side panel ass'y
2
1.9
The middle connection beam
1
11
Compressor's pressure plate
8
1.10
Welded parts of sealing plate
2
12
Welded parts of base plate
1
1.11
Upper-middle column
2
13
Suction pipe ass'y I
1
1.12
Condenser parts II
2
14
Triangle reinforcing plate
7
1.13
Condenser parts I
2
15
Shell-tube evaporator
1
1.14
Condenser card board
4
16
Compressor(fixed)
2
1.15
Rubber pad
16
17
Front-left panel ass'y
1
1.16
Fixed plate of side plate
2
18
Gas-liquid separator
2
1.17
Fixed parts of side plate
4
19
Middle column
2
1.18
Base welded parts of water pan
1
20
Front-right panel ass'y
1
1.19
Water pan
1
21
Suction pipe ass'y II
1
2
Rear panel ass'y
2
22
Piping support
2
3
Output pipe ass'y of unit B condenser
1
23
Clamp II, pipe
4
4
Output pipe ass'y of unit A condenser
1
24
Piping support I
1
5
4-way valve ass'y of unit A
1
25
4-way valve ass'y of unit B
1
5.1
4-way valve
1
25.1
4-way valve
1
6
Outdoor unit electrical box ass'y
1
26
EXV ass'y of unit A
1
6.1
Electrical box welded parts
1
26.1
Electronic expansion valve
1
6.2
Outdoor unit main board ass'y
1
27
EXV ass'y of unit B
1
6.3
Outdoor current detection board ass'y
1
27.1
Electronic expansion valve
1
6.4
Wire joint, 5p
1
28
Connection pipe ass'y of 4-way valve evaporator unit A
1
6.5
Terminal block
1
29
Pipe temp. sensor ass'y
2
6.6
AC contactor
2
30
Pipe temp. sensor ass'y
1
6.7
Wire joint,6p
1
31
Pipe temp. sensor ass'y
1
6.8
Wire joint
1
Qty No.
1 6.9 1 6.10 2 6.11 1 6.12 2 6.13 1 7 2 8
Exploded View
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
No
Code
Trouble
1
E0
2
E1
Power phase sequence error
3
E2
Communication error
4
E3
Total water outlet temperature sensor error
5
E4
Outlet water temp sensor error
6
E5
Pipe temperature sensor error in condenser A
7
E6
Pipe temperature sensor error in condenser B
8
E7
Outdoor ambient temperature sensor error
9
E8
Output of the power protector error
10
E9
Water flow detection error(manual recovery)
11
EA
(Reserved failure code)
12
Eb
Anti-freezing temperature sensor error in double pipe exchanger
13
EC
Wired controller detected that the units on-line have decreased
14
Ed
(Reserved failure code)
15
EF
Inlet water temperature sensor error
16
P0
High pressure or air discharge temperature protection in system A (manual recovery)
17
P1
Low pressure protection in system A (manual recovery)
18
P2
High pressure or air discharge temperature protection in system B (manual recovery)
19
P3
Low pressure protection in system B (manual recovery)
20
P4
Current protection in system A (manual recovery)
21
P5
Current protection in system B(manual recovery)
22
P6
Condenser high temperature protection in system A
23
P7
Condenser high temperature protection in system B
24
P8
(Reserved failure code)
25
P9
Protection of outlet and inlet water temperature difference
26
PA
Low ambient temperature drive-up protection
27
Pb
System anti-freezing protection
28
PC
Anti-freezing pressure protection in system A (manual recovery)
29
Pd
Anti-freezing pressure protection in system B (manual recovery)
30
PE
Low-temperature protection of evaporator (manual recovery)
12Trouble Shooting
12.1 Failure &protection codes
25/35/65/80/130kW module
Error of outdoor EEPROM
72 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
73
Troubles
Possible reasons
Solutions
Over high air discharge pressure (Cooling operation).
Air or other non-condensing gas still in the system.
Discharge gas from refrigerant charging inlet. Re-vacuum the system if necessary.
Fins in the condenser are dirty or foreign substance blocking fins.
Clean condenser fins.
Insufficient chilling air volume or condenser fan error.
Check and repair the condenser fan, recover the normal operation.
Excessive high air suction pressure.
Clean the heat exchanger. Replace the EXV, capillary, filter.
Excessive refrigerant charging volume.
Discharge the excessive refrigerant.
Over high ambient temperature
Check ambient temperature
Over low air discharge pressure(Cooling operation).
Surrounding temperature is lower.
Measure the surrounding Temperature
Refrigerant leak or insufficient.
Leak-hunting or recharging.
Low suction pressure.
Refer to the “low suction pressure”
Over high air suction pressure (Cooling operation)
Refrigerant over-charged.
Discharge the additional refrigerant.
High temperature of the inlet chilled-water.
Check the heat insulation of water pipeline.
Over low air suction pressure (Cooling operation). Insufficient water flow.
Measure the temperature difference between inlet /outlet water, adjust the water flow.
Low temperature of inlet chilled-water.
Check installation.
Refrigerant leak or insufficient.
Leak-hunting or recharging.
Scaling in the evaporator.
Descaling.
Over high air discharge pressure (Heating operation).
Insufficient water flow.
Check temperature difference between water inlet and outlet, and adjust the water flow volume.
Air or other non-condensing gas still in the system.
Discharge gas from refrigerant charging inlet. Re-vacuum the system if necessary.
Scaling in water side of heat exchanger.
Descaling.
Over high temperature in chilling water inlet.
Check water temperature
Over low air discharge pressure (Heating operation).
Over low temperature of chilling water.
Check chilling water temperature
Refrigerant leakage or insufficient refrigerant volume.
Test leakage or charge sufficient refrigerant to the system.
Excessive low air suction pressure
Add refrigerant. Check the EXV, capillary, filter or pressure controller.
Over high air suction pressure (Heating operation)
Over heat air in the side of air heat exchanger
Check ambient temperature around it.
Excessive refrigerant charging volume.
Discharge the excessive refrigerant.
Over low air suction pressure (Heating operation).
Insufficient refrigerant charging volume.
Charge sufficient refrigerant to the system
Insufficient air flow volume.
Check fan rotating direction
Air loop short circuit.
Reason about remove air short-circuit
Insufficient frost-removal operation.
Error comes out from 4-way valve or thermal resistor. Replace a new one if necessary.
Compressor stops because of anti-freezing protection (Cooling operation).
Insufficient chilling water flow volume.
Error comes from pump or flow-type water volume control. Check and repair or replace a new one.
Gas still in water loop.
Discharge air.
Thermal resistor error.
Upon error have been confirmed, please replace a new one.
Compressor stops because of high pressure protection.
Over high air discharging pressure.
Discharge part of refrigerant. Clean the heat exchanger. Check the EXV,capillary, filter.
High pressure switch error.
Upon error have been confirmed, please replace a new one.
Compressor stops because of motor overload.
Over high air discharging pressure and air suction pressure.
Clean the heat exchanger. Check the EXV,capillary, filter.
High voltage or low voltage, signal phase or phase unbalance.
Confirm voltage not higher or lower than the rated voltage +/-10%.
12.2 Troubles and Solutions
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Short circuit comes out from motor or connecting interface.
Confirm resistors at motor are connected corresponding to terminals.
Compressor stops because of integrate temperature sensor or air discharge temperature protection.
Over high or over low voltage.
Confirm voltage not higher or lower than the rated voltage +/-10%.
Over high air discharging pressure or excessive low air suction pressure.
Adjust refrigerant charge volume.
Clean the heat exchanger. Check the EXV, capillary, filter.
Component error.
Check the integrated temperature sensor after motor is cool down.
Compressor stops because of low pressure protection.
Filter of electronic expanding valve is blocked.
Replace a new filter.
Low voltage switch error.
If the switch is defective, please replace a new one.
Excessive low air suction pressure.
Add the refrigerant. Clean the heat exchanger. Check the EXV, capillary, filter.
Abnormal noise gives out form compressor.
Liquid refrigerant flows into compressor from evaporator result in liquid slugging.
Adjust refrigerant charge volume.
Aging of compressor.
Replace a new compressor.
Compressor can’t start.
Over current relay trip up, fuse burnt out.
Replace damaged assembly.
Control circuit without power though.
Check the wring of control system.
High voltage or low voltage protection.
Reference to mention in above the parts of air suction and discharge pressure error.
Coils inside contactor are burnt out.
Replace damaged assembly.
Wrong connection of phase sequence.
Re-connect and adjust the any 2 wires among 3 phases.
Water system error and flow volume controller short connection.
Check water system.
Error signal delivered from wired controller.
Find out the error type and carry out the corresponding measure to settle.
Air side heat exchanger excessive frost.
4-way valve or thermal resistor error.
Check the running state. Replace a new one if necessary.
Air loop short circuit.
Settle the short circuit of air discharge.
With noise.
Fixing screws at panel are loosen.
Fix up all assemblies.
74 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
75
Yes
No
No
Yes
Yes
Yes
High pressure and discharged protection.
No
No
Yes
Yes
Yes
No
No
No
No
High pressure protection.
Blower stops rotating or rotates in reversed direction in cooling mode, water pump is not open or the flow.
Couldn’t start the EXV.
Pressure controller is broken or the joint is loose.
Fin heat exchanger in cooling mode is too dirty or aged, or too heavy encrustation in
EXV, capillary and filter are dirty, blocking.
Discharge temperature protection.
See the analysis of discharge temp. protection malfunction.
Inspect fan motor and capacitor (1phase) or start up the water pump.
Replace EXV, capillary and filter.
There is air and filled refrigerant too much in system.(Generally occur after maintenance.)
PCB mistakes to alarm.
Empty, vacuuming and append refrigerant if necessary.
Check if it happened frequently, if yes, please replace PCB.
Inform the customer service center.
12.3 Typical malfunction solutions
1) High pressure and discharged temperature protection
Yes
Replace EXV or coil.
Yes
Replace press controller, fixed joint.
Yes
Clean heat exchanger.
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Low pressure protection.
No
Discharge temperature protection.
Discharge temperature switch is broken or joint is loose.
Yes
Yes
Replace discharge temperature switch, fixed joint.
Yes
Yes
No
No
No
No
Detect leakage for all system, append refrigerant.
Refrigerant is too less.
Replace the EXV or coil. refrigerant if ice blocked.
replace PCB.
Couldn’t open the EXV.
The EXV, capillary and filter are dirty, blocked and ice blocked.
PCB mistakes to alarm.
Inform the customer service center.
Refrigerant is too less.
Inspect leakage in system, append refrigerant.
Replace the EXV and coil.
Cause of dirty and blocked, replace the EXV, capillary and filter. Vacuuming and append refrigerant if ice blocked.
Inspect if the water flow is normal, refer to the water flow malfunction to analysis.
Couldn’t open the EXV.
The EXV, capillary and filter are dirty, blocked and ice blocked.
The pressure controller is broken or joint is loose.
Anti-freezing lower pressure protection.
Inform the customer service center.
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Replace the pressure controller, fixed joint.
Yes
Cause of dirty and blocked, replace the EXV, capillary and filter. Vacuuming and append
Yes
Check if happened frequently, if yes, please
2) Low pressure protection
76 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
77
High temperature protection of condenser.
Yes
Clean heat exchanger.
Check the fan motor, capacitor (1 phase) or start up water pump.
Empty, vacuuming and append refrigerant if
Inform the customer service center.
Yes
Yes
Yes
No
No
No
No
No
Abnormal power supply.
Air is in system, filled too much refrigerant(Generally happened after maintenance.)
PCB mistakes to alarm.
Yes
Yes
The fin of heat exchanger is dirty or aged in cooling mode.
Clean heat exchanger.
Replace PCB.
Replace temperature sensor.
Check the fan motor, capacitor (1 phase).
Replace installation position of unit.
PCB mistakes to alarm.
No
The installation position of unit results in bad heat transfer of condenser.
Yes
Yes
Yes
Yes
No
In cooling mode, the fan motor stop running, reversal and run slowly.
The temperature sensor of
condenser bring drifting when collect temperature.
No
No
No
Inform the customer service center.
Current protection
The fin of heat exchanger is dirty or aged in cooling mode, or the shell-tube scaled strong.
The fan motor stopped running in cooling mode, reversal and run slowly. The water pump didn’t start up or less water flow in heating.
2) Current protection
Yes
Check power supply, start up the unit after normal power supply.
Yes
Replace PCB.
3) High temperature protection of condenser
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Inlet &outlet water temperature difference protection.
Low temperature anti-freezing protection of cooling
Inform the customer service center.
Yes
Replace PCB.
Replace temperature sensor.
Refer to the water flow malfunction to analysis.
Yes
Yes
Yes
No
No
No
Water flow is lower.
The outlet water temperature
sensor or inlet water temperature sensor brought drifting when collect temperature.
PCB mistakes to alarm. Replace PCB.
Inform the customer service center.
PCB mistakes to alarm.
Yes
Yes
Yes
No
No
Water flow is slow.
Yes
Refer to the water flow malfunction to analysis.
Replace temperature sensor.
Replace PCB.
Anti-freezing temperature sensor of cooling evaporator brought drifting
Yes
PCB mistakes to alarm.
Inform the customer service center.
No
No
No
Low ambient temperature starting protection in cooling mode.
Yes
Ambient temperature sensor brought drifting when collect temperature value.
4) Inlet &outlet water temperature difference protection
5) Low ambient temperature starting up protection
Yes
Replace temperature sensor.
6) Low temperature anti-freezing protection of cooling evaporator
78 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
79
Power supply phase sequence malfunction.
Communication malfunction
Yes
Inform the customer service center.
Phase sequence error.
Lack of phase.
Phase lack protector is broken.
PCB mistakes to alarm.
No
Yes
Adjust connecting wire.
No
No
Yes
Check power supply.
Yes
Yes
Replace phase lack protector.
Inform the customer service center.
No power input to unit or wired controller.
Communicating wire malfunction.
Address repeat.
PCB mistakes to alarm.
The attachments of unit have strong electromagnetic interference.
Replace PCB.
Yes
Inspect power supply.
Inspect communicating wire.
Adjust address.
Yes
Yes
Yes
Reduce electromagnetic interference.
No
No
No
No
No
7) Power supply phase sequence malfunction
Replace PCB.
No
8) Communication malfunction
Yes
Yes
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Water flow detection malfunction
Yes
Yes
Water pump didn’t open or error.
Didnt open the valve in system.
No
The water flow detection switch error.
Inform the customer service center.
PCB mistakes to alarm.
The water flow switch installed out of criterion, result in mistaking work.
Selected the capacity of water pump is less (flow & head).
Designed the water pipe inner dimension is too less.
Open the pump or change; inspect the power supply or control circuit of pump.
Yes
Yes
Yes
Yes
Yes
Open the valve.
Replace the water flow switch, inspect the connecting wire.
Adjust the installation position.
Replace water pump.
Replace water pipe.
Remove superfluous valve or forced it is always on.
The filter or water pipe is dirty, the shell-tube heat exchanger scaled.
Clean filter, water pipe, shell-tube heat exchanger.
Empty.
Yes
Replace PCB.
No
No
No
No
No
No
Installed the 2-way valve quantity is more than 50% of indoor unit quantity.
Air is in water.
9) Water flow detection malfunction
No
Yes
No
Yes
No
Yes
80 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
81
Total outlet water temperature sensor malfunction
The unit outlet water temperature sensor malfunction
The circuit of total outlet water temperature sensor is broken.
Inform the customer service center.
PCB mistakes to alarm.
The circuit of total outlet water temperature sensor is shorten.
Fixed joint.
Replace temperature sensor.
Replace temperature sensor.
The joint of total outlet water temperature sensor is loose.
Inform the customer service center.
PCB mistakes to alarm.
The units circuit of outlet water temperature sensor is broken.
Replace PCB.
Replace temperature sensor.
The units circuit of outlet water temperature sensor is shorten.
Replace temperature sensor.
The units joint of outlet water temperature sensor is loose.
Fixed joint.
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
10) Total outlet water temperature sensor malfunction
Yes
Replace PCB.
11) The unit outlet water temp. sensor malfunction
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
The unit inlet water temperature sensor malfunction
Inform the customer service center.
PCB mistakes to alarm.
The units circuit of inlet water temperature sensor is broken.
Replace temperature sensor.
The units circuit of inlet water temperature sensor is shorten.
Replace temperature sensor.
The units joint of inlet water temperature sensor is loose.
Fixed joint.
No
Yes
Yes
Yes
Yes
No
No
No
Pipe temperature sensor of condenser malfunction.
Inform the customer service center.
PCB mistakes to alarm.
The circuit of condensers pipe temperature sensor is broken.
Replace PCB.
Replace temperature sensor.
The circuit of condensers pipe temperature sensor is shorten.
Replace temperature sensor.
The joint of condensers pipe temperature sensor is loose.
Fixed joint.
No
Yes
Yes
Yes
Yes
Yes
No
No
No
12) The unit inlet water temperature sensor malfunction
Yes
Replace PCB.
13) Pipe temp. sensor of condenser malfunction
82 Trouble Shooting
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
83
Ambient temperature sensor malfunction.
Inform the customer service center.
PCB mistakes to alarm.
The circuit of ambient temperature sensor is broken.
Replace temperature sensor.
The circuit of ambient temperature sensor is shorten.
Replace temperature sensor.
The joint of ambient temperature sensor is loose.
No
Yes
Yes
Yes
Yes
No
No
No
14) Ambient temperature sensor malfunction
Fixed joint.
Yes
Replace PCB.
Trouble Shooting
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
13Installation
13.1 Unit Installation
13.1.1 Transportation
The angle of inclination should not be more than 15º when carrying the unit, to avoid overturn of the unit. a. Rolling handling: several rolling rods of the same size are placed under the base of the unit, and the
length of each rod must be more than the outer frame of the base and suitable for balancing of the unit. b. Lifting: the strength lifting rope (belt) can bear should be 4 times the weight of the unit. Check the lifting
hook and ensure that it is firmly attached to the unit, and the lifting angle should be more than 60º. To avoid damages to the unit, the contact position of the unit and lifting rope should be provided with an at least 50mm thick wood block, cloth or hard paper. Any person is not allowed to stand below the unit when lifting it.
25/35/65/80/130kW module
Hoisting rope
Lifting hole
13.1.2 Installation space
● Requirements of arrangement space of the unit
Lifting equipment
The position should be provided with an at least 50mm thick wood block, cloth or hard paper, to avoid damages to the unit.
Lifting hole
1) To ensure adequate airflow entering the condenser, the influence of descending airflow caused by the high-rise buildings around upon the unit should be taken into account when installing the unit.
2) If the unit is installed where the flowing speed of air is high, such as on the exposed roof, the measures including sunk fence and Persian blinds can be taken, to prevent the turbulent flow from disturbing the air entering the unit. If the unit needs to be provided with sunk fence, the height of the latter should not be more than that of the former; if Persian blinds are required, the total loss of static pressure should be less than the static pressure outside the fan. The space between the unit and sunk fence or Persian blinds should also meet the requirement of the minimum installation space of the unit.
3) If the unit needs to operate in winter, and the installation site may be covered by snow, the unit should be located higher than the snow surface, to ensure that air flows through the coils smoothly.
84 Installation
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
85
Series
C D E
SS
≥2000
1500
8000
Series
Model
Max unit combined
quantity
L(mm)
M(mm)
N(mm)
SS
MDC
-SS35/RN1L
16
600
300
300
MDC
-SS65/RN1L
16
600
300
300
MDC
-SS80/RN1L
16
600
300
300
MDC
-SS130/RN1
16
600
300
300
25/35/65/80/130kW module
B
A
unit
C
The recommend space parameter
Input of airflow
D
Input of airflow
A B
≥1500
≥2000
E
Installation space (mm)
InputofairflowInputofairflow
unit
Space requirements for parallel installation of multiple scroll units
To avoid back flow of the air in the condenser and operational faults of the unit, the parallel installation of multiple scroll units can follow the direction A and D as shown in the figure above, the spaces between the unit and the obstacle are given in the figure above, and the space between adjacent scroll units should not be less than 300mm; the installation can also follow the direction B and C as shown in the figure above, the spaces between the unit and the obstacle are given in the figure above, and the space between adjacent scroll units should not be less than 600mm; the installation can also follow the direction combination of A and D, and B and C, the spaces between the unit and the obstacle are given in the figure above, the space between adjacent scroll units in the direction A and D should not be less than 300mm, and the space between adjacent scroll units in the direction B and C should not be less than 600mm. If the spaces mentioned above cannot be met, the air passing from the unit to the coils may be restricted, or back flow of air discharge may occur, and the performance of the unit may be affected, or the unit may fail to operate.
13.1.3 Installation foundation
The unit should be located on the horizontal foundation, the ground floor or the roof which can bear
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Series
Model
R1
R2
R3
R4
R5
R6
SS
MDC
-SS35/RN1L
81
81
89
89 / /
MDC
-SS65/RN1L
140
130
170
150 / /
MDC
-SS80/RN1L
170
210
170
160 / /
MDC
-SS130/RN1
200
320
230
370 / /
operating weight of the unit and the weight of maintenance personnel. Refer to the operating weight parameters in specification table.
If the unit is located so high that it is inconvenient for maintenance personnel to conduct maintenance,
the suitable scaffold can be provided around the unit.
The scaffold must be able to bear the weight of maintenance personnel and maintenance facilities. The bottom frame of the unit is not allowed to be embedded into the concrete of installation foundation.
Location drawing of installation foundation of the unit (unit: mm)
25/35kW module
Drainage channel
Drainage channel
268
370
96
788
Anchor bolt
1460
Anchor bolt
1460
880
65/80kW module
862
130kW module
Concrete Cement mortarDrainage channel
80
Concrete Cement mortarDrainage channel
80
Drainage channel
Load distribution
Anchor bolt
1017
Concrete Cement mortarDrainage channel
80
Unit: kg
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
87
Step
Content
1
Make sure that the flatness of the concrete foundation is within ±3mm, and then place the unit on the cushion block.
2
Raise the unit to the height suitable for installation of the damping device. Remove the clamp nuts of the damper.
3
Place the unit on the damper, and align the fixing bolt holes of the damper with the fixing holes on the unit base.
4
Return the clamp nuts of the damper to the fixing holes on the unit base, and tighten them into the damper.
5
Adjust the operational height of the damper base, and screw down the leveling bolts. Tighten the bolts by one circle to ensure equal height adjustment variance of the damper.
6
The lock bolts can be tightened after the correct operational height is reached.
65/80kW
130kW
35kW
13.1.4 Installation of damping devices
Damping devices must be provided between the unit and its foundation.
By means of the Φ15mm diameter installation holes on the steel frame of the unit base, the unit can be fastened on the foundation through the spring damper. See figure above (Schematic diagram of installation dimension of the unit) for details about center distance of the installation holes. The damper does not go with the unit, and the user can select the damper according to the relevant requirements. When the unit is installed on the high roof or the area sensitive to vibration, please consult the relevant persons before selecting the damper.
Installation steps of the damper
Installation bolt M12
Nut
Damping device
Ferrol
Fixed meatal
plate
13.2 Water System Installation
Notice:
After the unit is in place, chilled water pipes can be laid.
The relevant installation regulations should be abided with when conducting connection of water pipes.
The pipelines should be free of any impurity, and all chilled water pipes must conform to local rules and
regulations of pipeline engineering.
13.2.1 Connection requirements of chilled water pipes
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
a. All chilled water pipelines should be thoroughly flushed, to be free of any impurity, before the unit is operated. Any impurity should not be flushed to or into the heat exchanger.
b. Water must enter the heat exchanger through the inlet; otherwise the performance of the unit will decline. c. The inlet pipe of the evaporator must be provided with a water flow switch, to realize flow-break protection
for the unit. Both ends of the water flow switch must be supplied with horizontal straight pipe sections whose diameter is 5 times that of the inlet pipe. The water flow switch must be installed in strict accordance with “Installation & Regulation Guide for Water flow switch”. The wires of the water flow switch should be led to the electric cabinet through shielded cable. The working pressure of the water flow switch is 1.0MPa, and its interface is 1 inch in diameter. After the pipelines are installed, the water flow switch will be set properly according to the rated water flow of the unit.
d. The pump installed in the water pipeline system should be equipped with starter. The pump will directly press water into the heat exchanger of the water system.
e. The pipes and their ports must be independently supported but should not be supported on the unit. f. The pipes and their ports of the heat exchanger should be easy to disassemble for operation and cleaning,
as well as inspection of port pipes of the evaporator. g. The evaporator should be provided with a filter with more than 40 meshes per inch at site. The filter
should be installed near to the inlet port as much as possible, and be under heat preservation. h. The by-pass pipes and by-pass valves as shown in the figure of Connection drawing of pipeline
system” must be mounted for the heat exchanger, to facilitate cleaning of the outside system of water passage before the unit is adjusted. During maintenance, the water passage of the heat exchanger can be cut off without disturbing other heat exchangers.
i. The flexible ports should be adopted between the interface of the heat exchanger and on-site pipeline, to reduce transfer of vibration to the building.
j. To facilitate maintenance, the inlet and outlet pipes should be provided with thermometer or manometer. The unit is not equipped with pressure and temperature instruments, so they need to be purchased by the user.
k. All low positions of the water system should be provided with drainage ports, to drain water in the evaporator and the system completely; and all high positions should be supplied with discharge valves, to facilitate discharging air from the pipeline. The discharge valves and drainage ports should not be under heat preservation, to facilitate maintenance.
l. All possible water pipes in the system to be chilled should be under heat preservation, including inlet pipes and flanges of the heat exchanger.
m. The outdoor chilled water pipelines should be wrapped with an auxiliary heating belt for heat preservation, and the material of the auxiliary heat belt should be PE, EDPM, etc., with thickness of 20mm, to prevent the pipelines from freezing and thus cracking under low temperature. The power supply of the heating belt should be equipped with an independent fuse.
n. When the ambient temperature is lower than 2, and the unit will be not used for a long time, water inside the unit should be drained. If the unit is not drained in winter, its power supply should not be cut off, and the fan coils in the water system must be provided with three-way valves, to ensure smooth circulation of the water system when the anti-freezing pump is started up in winter.
o. The common outlet pipelines of combined units should be provided with mixing water temperature sensor. Warning:
● For the water pipeline network including filters and heat exchangers, dreg or dirt may seriously damages
the heat exchangers and water pipes.
● The installation persons or the users must ensure the quality of chilled water, and de-icing salt mixtures and air should be excluded from the water system, since they may oxidize and corrode steel parts inside the heat exchanger.
13.2.2 Connection drawing of pipeline system
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89
PH value
Total hardness
Conductivity
Sulfide ion
Chloride ion
Ammonia ion
Sulfate ion
Silicon
Iron content
Sodium ion
Calcium ion
7
8.5
<50ppm
<20μV/cm(25℃)
No
<50ppm
No
<50ppm
<30ppm
<0.3ppm
No requirement
<50ppm
25/35/65/80/130kW module
Expansion tank
Water replenishing
Dirt discharge valve
unit
Differential pressure by-pass valve
unit
Drain valve
Auxiliary electric heater
Two-way valve
Three-way valve
Terminal
13.2.3 Water quality
Water quality control
When industrial water is used as chilled water, little furring may occur; however, well water or river water, used as chilled water, may cause much sediment, such as furring, sand, and so on. Therefore, well water or river water must be filtered and softened in softening water equipment before flowing into chilled water system. If sand and clay settle in the evaporator, circulation of chilled water may be blocked, and thus leading to freezing accidents; if hardness of chilled water is too high, furring may occur easily, and the devices may be corroded. Therefore, the quality of chilled water should be analyzed before being used, such as PH value, conductivity, concentration of chloride ion, concentration of sulfide ion, and so on.
Applicable standard of water quality for the unit
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Quality of glycol%
modification coefficient
Freezing
point
Cooling capacity
modification
Power
modification
Water
resistance
Water flow
modification
0
1.000
1.000
1.000
1.000
0
10
0.984
1.118
1.019
-4.000
20
0.973
1.268
1.051
-9.000
30
0.965
1.482
1.092
-16.000
40
0.960
1.791
1.145
-23.000
50
0.950
2.100
1.200
-37.000
Quality of glycol
%
Modification coefficient
Freezing
point
Cooling capacity
modification
Water
resistance
Water flow
modification
0
1.000
1.000
1.000
0
10
0.976
1.071
1.000
-3.000
20
0.961
0.992
1.189
1.016
-7.000
30
0.948
0.988
1.380
1.034
-13.000
40
0.938
0.984
1.728
1.078
-22.000
50
0.925
0.975
2.150
1.125
-35.000
13.2.4 Performance adjustment factors
The antifreeze must be required according to anyone condition as following:
1. The outlet water temperature is below 5;
2. The ambient temperature is below 0
℃;
3. Dont start up the unit for a long time.
4. The power supply was cut off and needn’t change the water in system.
Ethylene and Propylene Glycol Factors
A glycol solution is required when the unit with condition as mentioned. The use of glycol will reduce the performance of the unit depending on concentration.
Ethylene Glycol
0.998
0.995
0.992
0.989
0.983
Propylene Glycol
Power
modification
1.000
0.996
Units operating with glycol solutions are not included in the ARI Certification Program.
Altitude correction factors
Performance tables are based at sea level. Elevations other than sea level affect the performance of the unit. The decreased air density will reduce condenser capacity and reduce the units performance. For performance at elevations other than sea level refer to Table 3. Maximum allowable altitude is 1800meters.
Evaporator temperature drop factors
Performance tables are based on a 5oC temperature drop through the evaporator. Adjustment factors for applications with temperature ranges from 3 to 6 in follow table. Temperature drops outside this range can affect the control systems capability to maintain acceptable control and are not recommended.
Fouling factor
Fouling refers to the accumulation of unwanted material on solid surfaces, most often in an aquatic environment. The fouling material can consist of either living organisms (biofouling) or a non-living substance (inorganic or organic). Fouling is usually distinguished from other surface-growth phenomena in that it occurs on a surface of a component, system or plant performing a defined and useful function, and that the fouling process impedes or interferes with this function.
Other terms used in the literature to describe fouling include: deposit formation, encrustation, crudding, deposition, scaling, scale formation, slagging, and sludge formation. The last six terms have a more narrow meaning than fouling within the scope of the fouling science and technology, and they also have meanings outside of this scope; therefore, they should be used with caution.
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
91
ALTITUDE
(m)
Difference of water inlet and outlet temp. ()
Fouling Factor
0.018 /kW
0.044m 2 /kW
0.086m 2 /kW
0.172m 2 /kW
C P C P C P C
P
Sea level
3
1.036
1.077
1.019
1.076
0.991
0.975
0.963
0.983
4
1.039
1.101
1.022
1.080
0.994
0.996
0.971
0.984
5
1.086
1.000
1.000
0.977
0.989
6
1.093
1.006
1.004
0.983
0.994
600
3
1.064
0.980
0.984
0.951
0.991
4
1.068
0.983
1.005
0.959
0.992
5
1.074
0.989
1.009
0.965
0.997
6
1.084
0.998
1.009
0.973
0.999
1200
3
1.052
0.969
1.011
0.942
1.002
4
1.055
0.971
1.012
0.948
1.003
5
1.063
0.979
1.015
0.955
1.005
6
1.031
1.125
1.015
1.072
0.987
1.018
0.962
1.007
1800
3
1.002
1.128
0.986
1.042
0.959
1.021
0.935
1.007
4
1.005
1.129
0.989
1.045
0.962
1.022
0.941
1.010
5
1.012
1.132
0.995
1.051
0.968
1.024
0.945
1.012
6
1.018
1.134
1.001
1.058
0.974
1.026
0.949
1.014
Fouling phenomena are common and diverse, ranging from fouling of ship hulls, natural surfaces in the marine environment (marine fouling), fouling of heat-transfer components through ingredients contained in the cooling water or gases, and even the development of plaque or calculus on teeth, or deposits on solar panels on Mars, among other examples.
Foreign matter in the chilled water system will adversely affect the heat transfer capability of the evaporator, and could increase the pressure drop and reduce the water flow. To provide optimum unit operation, proper water treatment must be maintained. Refer to the able as following.
Fouling Factor
1.045 1.105 1.028
1.051 1.109 1.034
1.024 1.087 1.008
1.027 1.111 1.011
1.034 1.115 1.017
1.043 1.115 1.026
1.013 1.117 0.996
1.015 1.118 0.998
1.023 1.122 1.006
C--Cooling capacity P--Power
13.2.5 Installation & regulation guide for water flow switch
● Please carefully check flow switches before conducting installation of the water flow switch. Packing should be in good condition, and the appearance should be free of damage and deformation. If any problem, please contact the manufacturer.
● Flow switches can be installed in the horizontal pipeline or the vertical pipeline with upward flowing direction but cannot be mounted in the pipeline with downward flowing direction. The inlet water of gravity should be taken into account when flow switches are installed in the pipeline with upward flowing direction.
Water flow switch must be installed on a section of straight-line pipeline, and its both ends must be supplied with straight-line pipes whose length is at least 5 times diameter of the pipe. In the meanwhile, the fluid flowing direction in the pipeline must be consistent with the direction of arrow on the controller. The connection terminal should be located where wiring connection can be easily done.
● Pay attention to the following items when conducting installation and wire connection: a. Collision of the wrench with the soleplate of the flow switch is prohibited, since such collision may cause
deformation and failure of the flow switch.
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
b. To avoid electric shock and damages to the devices, the power supply should be cut off, when wires are connected or adjustment is done.
c. When wiring connection is conducted, adjustment of other screws except connection terminals of micro switches and ground screws is prohibited. In the meanwhile, over great force should not applied when wires of micro switches are connected, otherwise micro switches may suffer displacement, thus leading to failure of flow switches.
d. Special grounding screws should be used for earth connection. Bolts should not be installed or removed at will; otherwise flow switches may suffer deformation and failure.
e. Flow switches have been set at minimal flow value before leaving the factory. They should not be adjusted below the setting value at the factory, or they may suffer failure. After installing flow switches, please press the flow switch lever several times to check them. When the lever is found not to respond with clatter”, rotate the screw in a clockwise direction, until “clatter” occurs.
f. Be sure to determine the model of target slice according to the rated flow of the unit, the diameter of the outlet pipe and the adjustment range of the target slice of the flow switch. Besides, the target slice should not contact with other restrictors in the pipeline or on the inner wall of the pipeline, or the flow switch cannot be reset normally.
● Determine whether the flow switch and the system connected with it are in good operation according to the measured value by flow meter, namely, when the measured value on flow meter is less than 60% of rated water flow of the unit, the water flow switch should be cut off and observed for 3 working periods, and it should be covered with flow switch shell timely.
Schematic diagram of water flow switch
13.2.6 Installation of water system pipeline for 25/35kW module Installation of single-module water system pipeline
25/35kW module
Electric control box
Total water outlet
temperature sensor
Water outlet
Water inlet
Installation of multi-module water system pipeline
n :the module quantity, max 16
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93
p
N
No.1modul
No.(n-1)modul
p
o.n module
e
e
No.(n-1) address
Pum
No.(n-2) address No.0 address
13.2.7 Installation of water system pipeline for 65/80kW module
Installation of single-module water system pipeline
Total water outlet temperature sensor
Electric control box
Installation of multi-module water system pipeline
Drill dead hole at the position, and move the total effluent temperature sensor at No.0 address to
the position
Water flow switch
Water outletWater inlet
n : the module quantity, max 16
No.n module
No.(n-1) address
Pum
No.(n-2) address No.0 address
Installation mode A: less than 16 modules
13.2.8 Installation of water system pipeline for 130kW module
Installation of single-module water system pipeline
Total water outlet temperature sensor
No.1 moduleNo.(n-1) module
Drill dead hole at the position, and move the total effluent temperature sensor at No.0 address to the position
Water flow switch
Electric control box
Water outletWater inlet
Installation of multi-module water system pipeline n : the module quantity, max 16
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
p
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
25×1
DN40
25×9
DN100
25×2
DN65
25×3
25×4
DN80
DN125
25×5
25×6
25×7
DN100
25×8
Unit model x quantity
Total inlet and outlet water
pipe diameter
Total inlet and outlet water
pipe diameter
35×1
DN40
DN100
35×2
DN65
35×10
35×3
35×11
35×4
DN80
35×12
DN125
35×5
35×13
35×6
35×14
35×7
DN100
35×15
35×8
35×16
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
65×1
DN65
65×9
DN125
65×2
65×10
65×3
DN80
65×11
DN150
65×4
DN100
65×12
65×5
65×13
65×6
65×14
65×7
DN125
65×15
DN200
65×8
65×16
Unit model x quantity
Total inlet and outlet water
pipe diameter
Unit model x quantity
Total inlet and outlet water
pipe diameter
130×1
DN65
130×9
DN200
130×2
DN80
130×10
130×3
DN100
130×11
130×4
DN125
130×12
DN250
130×5
130×13
130×6
DN150
130×14
DN250
130×7
130×15
130×8
DN200
130×16
No.n module
No.1 moduleNo.(n-1) module
No.(n-1) address
Pum
No.(n-2) address No.0 address
Installation mode A: less than 16 modules
13.2.9 Diameter parameters of main inlet and outlet pipes
Table of diameter parameters of main inlet and outlet pipes for 25kW module
25×10 25×11 25×12 25×13 25×14 25×15 25×16
Drill dead hole at the position, and move the total effluent temperature sensor at No.0 address to the position
Water flow switch
Table of diameter parameters of main inlet and outlet pipes for 35kW module
Unit model x quantity
35×9
Table of diameter parameters of main inlet and outlet pipes for 65kW module
Table of diameter parameters of main inlet and outlet pipes for 130kW module
94 Installation
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
95
Series
Model
Water flow rate(m3/h)
Minimum
Maximum
SS
MDC
-SS35/RN1L 5.4
6.6
MDC
-SS65/RN1L 10.08
12.32
MDC
-SS80/RN1L 12.42
15.18
MDC
-SS130/RN1 20.16
24.64
Please pay attention to the following items when installing multiple modules:
● Each module corresponds to an address code which cannot be repeated.
● Main water outlet temperature sensing bulb, water flow switch and auxiliary electric heater are under
control of the main module.
● One wired controller and one water flow switch are required and connected on the main module.
The unit can be started up through the wired controller only after all addresses are set and the
aforementioned items are determined. The wired controller is ≤50m away from the outdoor unit.
13.2.10 Chilled water flow
Minimum chilled water flow
The minimum chilled water flow is shown in the below table. If the system flow is less than the minimum unit flow rate, the evaporator flow can be recalculated, as shown
in the diagram.
For minimum chilled water flow rate
For maximum chilled water flow rate
Evaporator
Recirculation
Recirculation
Evaporator
Maximum chilled water flow
The maximum chilled water flow is limited by the permitted pressure drop in the evaporator. It is provided in the below table.
If the system flow is more than the maximum unit flow rate, bypass the evaporator as shown in the diagram to obtain a lower evaporator flow rate.
Minimum and Maximum water flow rates
13.2.11 Design of the store tank in the system
a. kW is the unit for cooling capacity, L is the unit for (G) minimum water flow volume in the formula. Comfortable type air conditioner G= cooling capacity×2.6L Process type cooling G= cooling capacity×7.4L
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Error
Recommendation
b. In certain occasion (especially in manufacture cooling process), for conforming the system water content requirement, it’s necessary to mount a tank equipping with a cut-off baffle at the system to avoid water short-circuit, Please see the following schemes:
Error
Recommendation
Error
Recommendation
13.2.12 Design of expansion tank
If a closed expansion tank with its filled volume of air is too small, the system pressure will easily exceed the maximum allowable pressure and cause water to discharge from the pressure relief valve, thus wasting water. If the closed tank is too large, when the water temperature drops, the system pressure may decrease to a level below the minimum allowable value and cause trouble in the air vent. Therefore, accurate sizing of a closed expansion tank is essential.
For diaphragm expansion tanks, the minimum volume of the water tank, Vt, gal(m3),can be calculated by the following formula, recommended by ASHRAE Handbook 1996, HVAC Systems and Equipment:
Vt=Vs v2/v1-1-3α(T2-T1)
1-p1/p2
T1=lower temperature,oF ()
T2=higher temperature, oF () Vs=volume of water in system, gal(m3)
p1=absolute pressure at lower temperature,psia(kPa abs.) p2=absolute pressure at higher temperature,paia(kPa abs.) v1,v2=specific volume of water at lower and higher temperature, respectively, ft3/lb(m3/kg)
α=linear coefficient of thermal expansion; for steel, α=6.5x10-6in./in·oF(1.2x10-5per ℃); for copper, α=9.5x10-6in./in·oF(1.7x10-5per ℃)
In a chilled water system, the higher temperature T2 is the highest anticipated ambient temperature when the chilled water system shuts down during summer. The lower temperature in a heating system is often the ambient temperature at fill conditions(for example, 50 oF or 10).
13.2.13 Selection and installation of the pump
(1)Select the pump
a. Select the water-flow of the pump The rated water-flow must no less than the unit rated water-flow; in terms of multi-connect the units, that
water-flow must no less than total units’ rated water-flow. b. Select the left of the pump. H=h1+h2+h3+h4 H: The lift of the pump.
96 Installation
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
97
Series
Model
Outdoor power supply
Wiring
Power supply
Manual switch
Fuse
SS
MDC
-SS35/RN1L
380-415V 3Ph50Hz
50A
36A
10mm2 (<30m)
MDC
-SS65/RN1L
380-415V 3Ph50Hz
125A
100A
16mm2 (<20m)
MDC
-SS80/RN1L
380-415V 3Ph50Hz
150A
100A
16mm2 (<20m)
MDC
-SS130/RN1
380-415V 3Ph50Hz
200A
150A
Base on the actual distance
of the wire, more than 35
mm2 for each module
h1: Main unit water resistance. h2: Pump water resistance. h3: Water resistance of the longest water-loop distance, includes: pipe resistance, different valve’s
resistance, flexible pipe resistance, pipe elbow and three-way resistance, two-way resistance or three-way resistance, as well as filter resistance.
H4: the longest terminal resistance. (2) Installation the pump a. The pump should be installed at the water inlet pipe, both of which sides must mount the soft connectors
for vibration-proof. b. The backup pump for the system (recommended). c. Units must with a main unit controls (Please see “fielding wiring” for the controls diagram).
13.3 Wiring Installation
All wiring installation should be done by qualified person.
13.3.1 Precautions:
1. The air-conditioner should apply special power supply, whose voltage should conform to rated voltage.
2. Wiring construction must be conducted by the professional technicians according to the labeling on the
circuit diagram.
3. Only use the electric components specified by our company, and require installation and technical
services from the manufacturer or authorized dealer. If wiring connection fails to conform to electric installation norm, failure of the controller, electronic shock, and so on may be caused.
4. The connected fixed wires must be equipped with full switching-off devices with at least 3mm contact
separation.
5. Set leakage protective devices according to the requirements of national technical standard about electric
equipment.
6. After completing all wiring construction, conduct careful check before connecting the power supply.
7. Please carefully read the labels on the electric cabinet.
8. The user’s attempt to repair the controller is prohibited, since improper repair may cause electric shock,
damages to the controller, and so on. If the user has any requirement of repair, please contact the maintenance center.
13.3.2 Power supply specification
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
13.3.3 Requirements of wiring connection
No additional control components are required in the electric cabinet (such as relay, and so on), and the
power supply and control wires not connected with the electric cabinet are not allowed to go through the electric box. Otherwise, electromagnetic interference may cause failure of the unit and control components and even damages to them, which thus lead to protective failure.
All cables led to the electric box should be supported independently but by the electric box.
The strong current wires generally pass the electric box, and 220V alternating current may also pass the
control board, so wiring connection should conform to the principle of separation of strong current and weak current, and the wires of power supply should be kept more than 100 mm away from the control wires.
Only use 380-415V 3Ph~ 50Hz rated power supply for the unit, and the maximum allowable range of
voltage is 342V-418V.
All electric wires must conform to local wiring connection norm. The suitable cables should be connected
to power supply terminal through wiring connection holes at the bottom of the electric cabinet. According to Chinese standard, the user is responsible for providing voltage and current protection for the input power supply of the unit.
All power supplies connected to the unit must pass one manual switch, to ensure that the voltages on all
nodes of electric circuit of the unit are released when the switch is cut off.
The cables of correct specification must be used to supply power for the unit. The unit should use
independent power supply, and the unit is not allowed to use the same power supply together with other electric devices, to avoid over-load danger. The fuse or manual switch of the power supply should be compatible with working voltage and current of the unit. In case of parallel connection of multiple modules, the requirements of wiring connection mode and configuration parameters for the unit are shown in the following figure.
Some connection ports in the electric box are switch signals, for which the user needs to provide power,
and the rate voltage of the power should be 220-230V AC. The user must be aware that all power supplies they provided should be obtained through power circuit breakers (provided by the user), to ensure that all voltages on the nodes of the provided power supply circuit are released when the circuit breakers are cut off.
All inductive components provided by the user (such as coils of contactor, relay, and so on) must be
suppressed with standard resistance-capacitance suppressors, to avoid electromagnetic interference, thus leading to failure of the unit and its controller and even damages to them.
All weak current wires led to the electric box must apply shielded wires, which must be provided with
grounding wires. The shield wires and power supply wires should be laid separately, to avoid electromagnetic interference.
The unit must be provided with grounding wires, which are not allowed to be connected with the grounding
wires of gas fuel pipelines, water pipelines, lightning conductors or telephones. Improper earth connection may cause electric shock, so please check whether earth connection of the unit is firm or not frequently.
Note: 25/35/65/80/130kW module only 16 scroll units can be combined at most.
98 Installation
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
99
Step
Content
1
Check the unit and ensure that it is connected with grounding wires correctly, to avoid leakage, and the grounding devices should be mounted in strict accordance with the requirements of electrical engineering rules. The grounding wires can prevent electric shock.
2
The control box of the main power switch must be mounted in a proper position.
3
Wiring connection holes of the main power should be provided with glue cushion.
4
The main power and neutral wires and grounding wires of power supply are led into the electric box of the unit.
5
The wires of the main power must pass the bonding clamp.
6
Wires should be connected firmly to the connection terminals A,B,C , N.
7
Phase sequences must be consistent when the wires of the main power.
8
The main power should be located out of easy reach of non-professional maintenance personnel, to avoid mal-operation and improve safety.
9
Connection of control wires of water flow switches: the wire leads (prepared by the user) of water flow switches are connected to the connection terminals W1 and W2 of the main unit.
10
Power supply (220-240V~50Hz)
11
Power supply (220-240V~50Hz)
12
The connection way of the wired controller connects with every signal wires from package units: signal wires P, Q, E are connected in the same way of main wires connection method and accordingly connect to the terminals P, Q, E in the wired controller.
13.3.4 Wiring steps
Connection of control wires of auxiliary electric heaters: the control wires of AC contactor of the auxiliary electric heater must pass the connection terminals H1 and H2 of the main unit, as shown.
H2
H1
Overcurrent relay
Control coil ofAC contactor
Connection of control wires of pump: the control wires of AC contactor of the pump must pass the connection terminals P1 and P2 of the main unit, as shown.
P2
Switch (For trial run of pump)
P1
Overcurrent relay
Control coil ofAC contactor
Installation
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
“ON/OFF” port
T/COOL” por
1 .Wiring of “ON/OFF” weak electric port
Corresponding parallel connect the “ON/OFF”(dry contact input signal) port of the main unit’s electric control box, then, connect the “ON/OFF” signal (provide by user) to the “ON/OFF” port of main unit as follows.
0# electric
control box
Red
ON/OFF signal
Main control board is provided
2 .Remote mode selection: Wiring of “HEAT/COOL” weak electric port
Corresponding parallel connect the “HEAT/COOL” (dry contact input signal) port of the main unit’s electric control box, then, connect the “ON/OFF” signal (provide by user) to the “HEAT/COOL” port of main unit as follows.
0# electric control box
“HEA
ON/OFF signal
Main control board is provided
3 .Wiring of “ALARM” port
Connect the device provided by user to the “ALARM” (dry contact output signal) ports of the module units as follows.
electriccontrolbox
ALARM” port
Blue
t
Brown
Black
Red
byuser
If the unit is operating normally, the ALARM port is closed, otherwise, the ALARM port is not closed.
100 Installation
Deviceprovided
Red
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
101
14Commissioning
1. Preparation
After the water system pipeline is flushed several times, please make sure that the purity of water meets
the requirements; the system is re-filled with water and drained, and the pump is started up, then make sure that water flow and the pressure at the outlet meet the requirements.
The unit is connected to the main power 12 hours before being started up, to supply power to the heating
belt and pre-heat the compressor. Inadequate pre-heating may cause damages to the compressor.
Setting of the wired controller. See details of the manual concerning setting contents of the controller,
including such basic settings as refrigerating and heating mode, manual adjustment and automatic adjustment mode and pump mode. Under normal circumstances, the parameters are set around standard operating conditions for trial run, and extreme working conditions should be prevented as much as possible.
Carefully adjust the water flow switch on the water system or the inlet stop valve of the unit, to make the
water flow of the system accord with the water flow in specification table.
2. Test run
6.3.1 Start up the controller and check whether the unit displays a fault code. If a fault occurs, remove the
fault first, and start the unit according to the operating method in the “unit control instruction”, after
determining that there is no fault existing in the unit.
6.3.2 Conduct trial run for 30 min. When the influent and effluent temperature becomes stabilized, adjust the
water flow to nominal value, to ensure normal operation of the unit.
6.3.3 After the unit is shut down, it should be put into operation 10 min later, to avoid frequent start-up of the
unit. In the end, check whether the unit meets the requirements in specification table.
Notices:
● The unit can control start-up and shut-down of the unit, so when the water system is flushed, the operation
of the pump should not be controlled by the unit.
● Do not start up the unit before draining the water system completely.
The water flow switch must be installed correctly. The wires of the water flow switch must be connected
according to electric control schematic diagram, or the faults caused by water breaking while the unit is in
operation should be the user’s responsibility.
Do not re-start the unit within 10 min after the unit is shut down during trial run.
When the unit is used frequently, do not cut off the power supply after the unit is shut down; otherwise the
compressor cannot be heated, thus leading to its damages.
If the unit is not in service for a long time, and the power supply needs to be cut off, the unit should be
connected to the power supply 12 hours prior to re-starting of the unit, to pre-heat the compressor.
Commissioning
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
15Maintenance
Maintenance for main components
● Close attention should be paid to the discharge and suction pressure during the running process. Find out
reasons and eliminate the failure if abnormality is found.
● Control and protect the equipment. See to it that no random adjustment be made on the set points on site.
● Regularly check whether the electric connection is loose, and whether there is bad contact at the contact
point caused by oxidation and debris etc., and take timely measures if necessary. Frequently check the work voltage, current and phase balance.
● Check the reliability of the electric elements in time. Ineffective and unreliable elements should be
replaced in time.
Removing scale
After long-time operation, calcium oxide or other minerals will be settled in the heat transfer surface of the water-side heat exchanger. These substances will affect the heat transfer performance when there is too much scale in the heat transfer surface and sequentially cause that electricity consumption increases and the discharge pressure is too high (or suction pressure too low). Organic acids such as formic acid, citric acid and acetic acid may be used to clean the scale. But in no way should cleaning agent containing chlorine acid or fluoride should be used as the water-side heat exchange is made from stainless steel and is easy to be eroded to cause refrigerant leakage. Pay attention to the following aspects during the cleaning and scale-removing process:
Water-side heat exchanger should be done be professionals.
● Clean the pipe and heat exchanger with clean water after cleaning agent is used. Conduct water treatment
to prevent water system from being eroded or re-absorption of scale.
● In case of using cleaning agent, adjust the density of the agent, cleaning time and temperature according
to the scale settlement condition.
● After pickling is completed, neutralization treatment needs to be done on the waste liquid. Contact relevant
company for treating the treated waste liquid.
● Protection equipment (such as goggles, gloves, mask and shoes) must be used during the cleaning
process to avoid breathing in or contacting the agent as the cleaning agent and neutralization agent is corrosive to eyes, skins and nasal mucosa.
Winter shutdown
For shutdown in winter, the surface of the unit outside and inside should be cleaned and dried. Cover the unit to prevent dust. Open discharge water valve to discharge the stored water in the clean water system to prevent freezing accident (it is preferable to inject antifreeze in the pipe).
Replacing parts
Parts to be replaced should be the ones provided by our company. Never replace any part with different part.
First startup after shutdown
The following preparations should be made for re-startup of unit after long-time shutdown:
1) Thoroughly check and clean the unit.
2) Clean water pipe system.
3) Check pump, control valve and other equipment of water pipe system.
4) Fix connections of all wires.
5) It is a must to electrify the machine before startup.
Refrigeration system
Determine whether refrigerant is needed by checking the value of suction and discharge pressure and check whether there is a leakage. Air tight test must be made if there is a leakage or part of refrigerant system is to be replaced. Take different measures in the following two different conditions from refrigerant injection.
1) Total leakage of refrigerant. In case of such situation, leakage detection must be made on the pressurized
nitrogen used for the system. If repair welding is needed, welding cannot be made until all the gas in the system is discharged. Before injecting refrigerant, the whole refrigeration system must be completely dry and of vacuum pumping.
102 Maintenance
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
103
● Connect vacuum pumping pipe at the fluoride nozzle at low-pressure side.
● Remove air from the system pipe with vacuum pump. The vacuum pumping lasts for above 3 hours.
Confirm that the indication pressure in dial gauge is within the specified scope.
● When the degree of vacuum is reached, inject refrigerant into the refrigeration system with refrigerant
bottle. Appropriate amount of refrigerant for injection has been indicated on the nameplate and the table of main technical parameters. Refrigerant must be injected from the low pressure side of system.
● The injection amount of refrigerant will be affected by the ambient temperature. If the required amount
has not been reached but no more injection can be done, make the chilled water circulate and start up the unit for injection. Make the low pressure switch temporarily short circuit if necessary.
2) Refrigerant supplement. Connect refrigerant injection bottle on the fluoride nozzle at low-pressure side
and connect pressure gauge at low pressure side.
● Make chilled water circulate and start up unit, and make the low pressure control switch short circuit if
necessary.
● Slowly inject refrigerant into the system and check suction and discharge pressure.
Disassembling compressor
Follow the following procedures if compressor needs to be disassembled:
1) Cut off the power supply of unit.
2) Remove power source connection wire of compressor.
3) Remove suction and discharge pipes of compressor.
4) Remove fastening screw of compressor.
5) Move the compressor.
Auxiliary electric heater
When the ambient temperature is lower than 2 , the heating efficiency decreases with the decline of the outdoor temperature. In order to make the air-cooled heat pump stably run in a relatively cold region and supplement some heat lost due to de-frosting. When the lowest ambient temperature in the user’s region in winter is within 0~10, the user may consider to use auxiliary electric heater. Please refer to relevant professionals for the power of auxiliary electric heater.
System anti-freezing
In case of freezing at the water-side heat exchanger interval channel, severe damage may be caused, i.e. heat exchange may be broken and appears leakage. This damage of frost crack is not within the warranty scope, so attention must be paid to anti-freezing.
1) If the unit that is shut down for standby is placed in an environment where the outdoor temperature is
lower than 0, the water in the water system should be drained.
2) Water pipe may be frozen when the chilled water flow switch and anti-freezing temperature senor become
ineffective at running, therefore, the water flow switch must be connected in accordance with the connection diagram.
3) Frost crack may happen to water-side heat exchanger at maintenance when refrigerant is injected to the
unit or is discharged for repair. Pipe freezing is likely to happen any time when the pressure of refrigerant is below 0.4Mpa. Therefore, the water in the heat exchanger must be kept flowing or be thoroughly discharged.
Maintenance
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
13
32
No.
Detail information.
1
Detection of current of the compressor A1 (Protection code P4).
2
Detection of current of the compressor B1 (Protection code P5). Current is not detected within the initial 5 seconds after the compressor is started up. When the current of the compressor is detected to exceed protective value set (33A for constant speed compressor), it will be shut down and re-started after 3 min.
3
Power port for the current board.
4
T4: outdoor ambient temperature sensor (Fault code E7). T3B: pipe temperature sensor of the condenser B (Fault code E6 and protection code P7). T3A: pipe temperature sensor of the condenser A (Fault code E5 and protection code P6).
1) T4: if there is one system that requires starting outdoor fans, the fans are started through electric control of the unit. Start outdoor fan A only, start A and B gears, and control the unit through T4.
2) T3B and T3A: when the electric control of the scroll unit detects the temperature of the outdoor pipe T3A or T3B of the system exceeds the protective temperature 65, the corresponding system will be shut down. And it will be re-started up,
after the temperature drops below the recovery temperature 60. Another system will be not affected.
3) T4, T3B and T3A: when the temperature sensor is detected to suffer open circuit or short circuit, fault alarm will occur.
When the main unit suffer fault of temperature sensor: the main unit and subordinate units will be shut down.
When the subordinate unit suffer fault of temperature sensor: the unit will be shut down, but other subordinate units will
16Control System
16.1 PCB Outline and Description
SS series
16.1.1 35/65/130kW module PCB, outlook view
10 9 8 7 6 5 4 3 2 1
11 12
14
15
16
17
18
19
20
16.1.2 35/65/130kW module components description
33
31
30 29
28
104 Control system
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
105
not be affected.
5
Shell-tube low-temperature ant-freeze sensor (Fault code Eb). Adjustment range of constant speed capability: ON and OFF. Adjustment range of constant speed capability: ON and OFF.
6
Unit outlet water temperature sensor (Fault code E4). Under refrigeration mode and heating mode, conduct adjustment according to the magnitude of unit outlet water temperature. Adjustment range of constant speed capability: ON and OFF.
7
Inlet water temperature sensor (Fault code EF).
8
Total outlet water temperature sensor (Fault code E3). Only the main unit is valid, and the subordinate units are invalid. Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature. Adjustment range: Load, stabilize, unload, Emergency Stop.
9
Remote mode control port(ON/OFF signal, effect on NO.0 unit).
1.Dial the code S7 in the main control board to the ON” position and enter to the remote control mode (the wired controller is invalid).
2.First, the ON/OFF port is closed, second, if this port is closed, the unit enters the heating mode, else, the unit enters the cooling mode.
10
Remote control port(ON/OFF signal, effect on NO.0 unit).
1) Dial the code S7 in the main control board to the “ON” position and enter to the remote control mode (The wired controller is invalid).
2) If the port is closed, the unit is turned on, else, the unit is turned off.
11
Electronic expansion valve of the system B.
12
Numerical code tube.
1) In case of stand-by, the address of the module is displayed.
2) In case of normal operation, 10 is displayed (10 is followed by dot).
3) In case of fault or protection, fault code or protection code is displayed.
13
Electronic expansion valve of the system A. Electronic expansion valve is used to control refrigerant flow under different operating modes and different loads.
14
15
High-pressure protection in system A and discharge temperature switch protection (Protection code P0). High-pressure protection in system B and discharge temperature switch protection (Protection code P2). Low-pressure protection in system A (Protection code P1). Low-pressure protection in system B (Protection code P3). Constant speed compressor: connection of discharge temperature switch and high-pressure switch of the system in series.
16
Power phase detection(Fault code E8)
17
Water flow detection (Fault code of the main unit E9) is only valid for the main unit but invalid for subordinate units.
Spot check. The operating status of outdoor system can be observed through spot check, and specific display contents are as shown in the following figure:
Normal display
Operating mode Operating capability of the compressor B Number of online units Outdoor ambient temp. Temp. of the condenserA
T61 frost-proof temp Unit outlet water temp Unit outlet-water tempe Temp. of the condenser B
EXV openingA EXV opening B Operating current of system A Operating current of system B The last failure
Display contents of operating mode: 1. cooling; 2. heating; 4. pump; 8. Stand-by.
Display contents of number of online units: the main unit can display the number of online units, and the subordinate
unit displays 0.
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
1) Main unit: if abnormal water flow occurs for the first and second time, the main unit board will display fault code E9.
2) Subordinate unit: (Water flow detection will not be done).
18
COM (I) 485 communication port (Fault code E2). COM (O) is interconnected with P, Q and E of COM (I), used for RS-485 communication.
1) If faults occur between the wired controller and the main unit module, all modules will be shut down.
2) If faults occur between the main unit and subordinate units, the subordinate unit module suffering communication fault will be shut down. Less units will be detected by the wired controller, which may display EC, and in the meanwhile, the indicator lamp of the wired controller will flash. Restart 3 minutes later after malfunction be removed.
19
COM (O) 485 communication port (Fault code E2).
20
Anti-freezing pressure protection in system A(Protection code Pc). Anti-freezing pressure protection in system B(Protection code Pd).
21
The alarm signal output of the unit(ON/OFF signal).
22
Auxiliary electric heater: Attention: the control port value of auxiliary electric heater actually detected is ON/OFF but not 220V control power supply, so special attention should be paid when installing the auxiliary electric heater. Attention! Under heating mode, when the main unit board detects total water outlet temperature to be lower than 45, the switch will be
closed, and the auxiliary electric heater will begin to work; when the total water outlet temperature is higher than 50, the switch will be opened, and the auxiliary electric heater will stop working.
23
PUMP. Attention: the control port value of the pump actually detected is ON/OFF but not 220V control power supply, so special attention should be paid when installing the pump.
1) After receiving start-up instruction, the pump will be started up instantly, and will maintain start-up state always in the process of operation.
2) In case of refrigerating or heating shutdown, the pump will be shut down 2 minutes after all modules stop operating.
3) In case of shutdown under the pump mode, the pump can be directly shut down.
24
25
One compressor of the system B. Four-way valve of the system B. One compressor of the system A. Four-way valve of the system A.
S2 ON: Cooling only OFFR&C S3 ON: Digital OFFFixed S4 ON:H-EEprom OFFNormal S5 ON:C-EEprom OFFNormal
106 Control system
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
107
26
27
PWM pressure released valve control(For digital compressor).
28
Outdoor fan A, controlled by T4.
29
Outdoor fan B, controlled by T4.
30
Input of transformer, 220V AC current. (Only valid for the main unit).
31
Input of three-phase four-wire power supply (Fault code E1). Three phases A, B and C of power supply should exist simultaneously, and the difference of phase angle should be 120º among them. If the conditions are not met, fault of phase sequence or phase lack may occur, and fault code will be displayed. When the power supply returns to normal condition, fault is removed. Attention: phase lace and phase dislocation of power supply are detected only in the early period after the power supply is connected, and they are not detected while the unit is in operation.
32
33
Output of transformer
When the address is 0, it serves as the main unit.
When the address is 1,2,3……F, it serves as the subordinate unit 1,2,3……15.
0
1
F
E
D
C
B
A
9
F
E
D
C
2
3
4
5
6
7
8
8
0
1
2
3
4
B
A
9
8
8
ADDRRSS
Each scroll part of scroll unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board. The address code 0 # is provided as the main unit. The priority of being the main unit is given to the unit with digital compressor, and other addresses are subordinate units. Only the unit is chosen as the main unit, its electric control can activate such functions as direct communication with the wired controller, refrigerating and heating capability adjustment, pump control, auxiliary electric heater control, total effluent temperature detection and water flow switch detection.
5
6
7
S7 ON: Remote control OFFWired control S8 ON: Low temp. mode OFFNormal S9 ON: 30KW OFF65/130/200/260KW
CAUTION
1. Faults
When the main unit suffers faults, the main unit stops operating, and all other units also stop running; When the slave unit suffers faults, only the unit stops operating, and other units are not affected.
2. Protection
When the main unit is under protection, only the unit stops operating, and other units keep running; When the slave unit is under protection, only the unit stops operating, and other units are not affected.
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
No.
Detail information.
1
Detection of current of the compressor A1 (Protection code P4).
2
Detection of current of the compressor B1 (Protection code P5). Current is not detected within the initial 5 seconds after the compressor is started up. When the current of the compressor is detected to exceed protective value set (33A for constant speed compressor), it will be shut down and re-started after 3 min.
3
T4: outdoor ambient temperature sensor (Fault code E7). T3B: pipe temperature sensor of the condenser B (Fault code E6 and protection code P7). T3A: pipe temperature sensor of the condenser A (Fault code E5 and protection code P6).
1) T4: if there is one system that requires starting outdoor fans, the fans are started through electric control of the unit. Start outdoor fan A only, start A and B gears, and control the unit through T4.
2) T3B and T3A: when the electric control of the scroll unit detects the temperature of the outdoor pipe T3A or T3B of the system exceeds the protective temperature 65, the corresponding system will be shut down. And it will be re-started up,
after the temperature drops below the recovery temperature 60. Another system will be not affected.
3) T4, T3B and T3A: when the temperature sensor is detected to suffer open circuit or short circuit, fault alarm will occur.
When the main unit suffer fault of temperature sensor: the main unit and subordinate units will be shut down.
When the subordinate unit suffer fault of temperature sensor: the unit will be shut down, but other subordinate units will
not be affected.
4
Detection of current of the compressor A2 (Protection code P4)
5
Unit outlet water temperature sensor (Fault code E4).
16.1.3 80kW module PCB, outlook view
3 4226 51314 29303734 10 11
1
35
33
9
2
12
7
17
18
15
16
32 19 20 2131 23 2636 27
16.1.4 80kW module components description
8
28
24 25
38
108 Control system
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
109
Under refrigeration mode and heating mode, conduct adjustment according to the magnitude of unit outlet water temperature. Adjustment range of constant speed capability: ON and OFF.
6
Total outlet water temperature sensor (Fault code E3). Only the main unit is valid, and the subordinate units are invalid. Under refrigerating mode and heating mode, conduct adjustment according to the magnitude of total outlet water temperature. Adjustment range: Load, stabilize, unload, Emergency Stop.
7
8
9
10
COM (O) 485 communication port (Fault code E2)
When the address is 0, it serves as the main unit.
When the address is 1,2,3……F, it serves as
the subordinate unit 1,2,3……15.
Spot check. The operating status of outdoor system can be observed through spot check, and specific display contents are as shown in the following figure:
Normal display
Operating mode Operating capability of the compressor B Number of online units Outdoor ambient temp. Temp. of the condenserA
T61 frost-proof temp Unit outlet water temp Unit outlet-water tempe Temp. of the condenser B
EXV openingA EXV opening B Operating current of system A Operating current of system B The last failure
Display contents of operating mode: 1. cooling; 2. heating; 4. pump; 8. Stand-by.
Display contents of number of online units: the main unit can display the number of online units, and the subordinate
unit displays 0. Factory setting
0
1
F
E
D
C
B
A
9
F
E
D
C
B
A
9
ADDRRSS
Each scroll part of scroll unit has the same electric control function, and the main unit and subordinate units can be set through address code on the electric control board. The address code 0 # is provided as the main unit. The priority of being the main unit is given to the unit with digital compressor, and other addresses are subordinate units. Only the unit is chosen as the main unit, its electric control can activate such functions as direct communication with the wired controller, refrigerating and heating capability adjustment, pump control, auxiliary electric heater control, total effluent temperature detection and water flow switch detection.
2
3
4
5
6
7
8
8
0
1
2
3
4
5
6
7
8
8
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
11
COM (I) 485 communication port (Fault code E2). COM (O) is interconnected with P, Q and E of COM (I), used for RS-485 communication.
1) If faults occur between the wired controller and the main unit module, all modules will be shut down.
2) If faults occur between the main unit and subordinate units, the subordinate unit module suffering communication fault will be shut down. Less units will be detected by the wired controller, which may display EC, and in the meanwhile, the indicator lamp of the wired controller will flash. Restart 3 minutes later after malfunction be removed.
12
High-pressure protection in system A and discharge temperature switch protection (Protection code P0). High-pressure protection in system B and discharge temperature switch protection (Protection code P2). Low-pressure protection in system A (Protection code P1). Low-pressure protection in system B (Protection code P3). Constant speed compressor: connection of discharge temperature switch and high-pressure switch of the system in series.
13
Inlet water temperature sensor (fault code EF)
14
Shell and tube low-temperature ant-freeze sensor (Fault code Eb).
15
Water flow detection (fault code of the main unit E9) is only valid for the main unit but invalid for subordinate units.
1) Main unit: if abnormal water flow occurs , the main unit board and the wired controller will display fault code E9.
2) Subordinate unit: (water flow detection will not be done).
16
Power phase detection(Fault code E8).
17
Electronic expansion valve of the system B.
18
Electronic expansion valve of the system A. Electronic expansion valve is used to control refrigerant flow under different operating modes and different loads.
19
Auxiliary electric heater Attention: the control port value of auxiliary electric heater actually detected is ON/OFF but not 220-230V control power supply, so special attention should be paid when installing the auxiliary electric heater. Attention! Under heating mode, when the main unit board detects total water outlet temperature to be lower than 45, the switch will be
closed, and the auxiliary electric heater will begin to work; when the total water outlet temperature is higher than 50, the switch will be opened, and the auxiliary electric heater will stop working.
20
PUMP. Attention: the control port value of the pump actually detected is ON/OFF but not 220-230V control power supply, so special attention should be paid when installing the pump.
1) After receiving start-up instruction, the pump will be started up instantly, and will maintain start-up state always in the process of operation.
2) In case of refrigerating or heating shutdown, the pump will be shut down 2 minutes after all modules stop operating.
3) In case of shutdown under the pump mode, the pump can be directly shut down.
21
One compressor of system B(B1); Neutral wire; One compressor of system A(A1); Neutral wire.
22
Numerical code tube.
1) In case of stand-by, the address of the module is displayed;
2) In case of normal operation, 10. is displayed (10 is followed by dot).
3) In case of fault or protection, fault code or protection code is displayed.
23
Four-way valve of the system B; Neutral wire.
24
Outdoor fan A, controlled by T4.
25
Outdoor fan B, controlled by T4.
110 Control system
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
111
26
PWM pressure released valve control(for digital compressor)
27
Input of transformer, 220-230V AC current. (only valid for the main unit)
28
Input of three-phase four-wire power supply (Fault code E1) Three phases A, B and C of power supply should exist simultaneously, and the difference of phase angle should be 120º among them. If the conditions are not met, fault of phase sequence or phase lack may occur, and fault code will be displayed. When the power supply returns to normal condition, fault is removed. Attention: phase lace and phase dislocation of power supply are detected only in the early period after the power supply is connected, and they are not detected while the unit is in operation.
29
Output of transformer
30
Power port for the current board
31
One compressor of the system B(B2); Neutral wire; One compressor of the system A(A2) ; Neutral wire.
32
The alarm signal output of the unit(ON/OFF signal)
33
Anti-freezing pressure protection of the system A(Protection code Pc) Anti-freezing pressure protection of the system B(Protection code Pd)
34
Remote control port(ON/OFF signal, effect on NO.0 unit)
1.Dial the code S7 in the main control board to the ON” position and enter to the remote control mode (the wired controller is invalid).
2.If the port is closed, the unit is turned on, else, the unit is turned off.
35
Remote mode control port(ON/OFF signal, effect on NO.0 unit)
1.Dial the code S7 in the main control board to the ON” position and enter to the remote control mode (the wired controller is invalid).
2.First,the ON/OFF port is closed. Second, if this port is closed, the unit enters the heating mode, else ,the unit enters the cooling mode.
36
Four-way valve of system A; Neutral wire.
37
Detection of current of compressor B2 (Protection code P5)
38
Plate heat exchanger heater/Pump heater port(DC 12V signal).
CAUTION
1. Faults
When the main unit suffers faults, the main unit stops operating, and all other units also stop running; When the slave unit suffers faults, only the unit stops operating, and other units are not affected.
2. Protection
When the main unit is under protection, only the unit stops operating, and other units keep running; When the slave unit is under protection, only the unit stops operating, and other units are not affected.
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
16.2 Wired Controller KJRM-120D/BMK-E(Standard)
KJRM-120D/BMK-E
1
2
3
4
16
11
15
14
1. Operation icon
2. Mode area
3. Setting temperature
4. Timing On/Off
5. Function icon
6. On-line unit qt y.
7. Reserved
8. Clock
9. Water temp.
13
10.ON/OFF key
11.Right, Left key
12.OK key
13. Setting key
14. Add, reduce key
15. Cancel key
16. Reserved key
16.2.1. Operating instructions of buttons
5
6
7
8
9
10
11
12
1 .Operation icon
: Indicate the ON and OFF status; when it is ON, it will display; when it is OFF, it
will disappear;
2 Mode area: Indicate the main unit operating mode;
3 Setting temperature: 2 status can be displayed:
4 Timing ON/OFF indication
5 Function icon;
: Indicate the timing information;
;
1) Computer: Display when connects to computer;
2) Maintenance: When the icon is lighted on it means should arrange professionals to do the cleaning
maintenance; long press“CONSTRAINT” for 3 seconds then this icon will be off, until the next
maintenance;
3) E-heating: Display when the electric auxiliary heating water function is operated;
4) Check: Display when check function is operated;
5) Anti-freezing: Display when the main unit ambient temperature is below 2, to remind the main unit should be do the anti-freezing measurement;
6) Lock: When the icon is lighted on, it means the button has been locked (no keys operation for 2 minutes ), long press “OK” key for 3 seconds to unlock;
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117
7) Error: When the main unit has error or protection, this icon will be displayed. The unit need to be maintained by professionals.
6 On-line unit qty. indication: Under normal status display the quantity of the units connected to the wire
controller; under check status display the device serial number;
7 Reserved;
8 Clock: Under normal status display clock; during timing setting it displays the setting timing time;
9 Water temperature: Under normal status display water temperature; during water temperature setting it
displays the setting numerical value; under spot check status display spot check parameter;
10ON/OFF key: On and Off functions;
11 Right, Left key: Under main page to press this key can query the setting water temperature, setting
timing etc; during timing setting press the right key then shift to the next step setting; during spot check they are used to turn over the unit parameter information;
12OK key: After setting the parameter then press this key to confirm. After keys locking then long press this
key for 3 seconds to unlock;
13Setting key: Setting the water temperature, timing, mode etc, long press this key for 3 seconds enter to
spot check;
14Add, Reduce key: Setting water temperature, timing, water level etc; during spot check they are used to
read over #0#15 units;
15Cancel key: During setting parameters press this key to cancel setting. After timing setting and then long
press this key 3 seconds to cancel timing;
16Reserved key.
16.2.2. Operation instruction
On and Off the main unit
1) Press the On/Off key to control On and Off status of the main unit.
2) Under Off status, press the On/Off key
controller will display the operation icon “ ”. The main unit will be operated as the current setting of the wired controller.
3) Under On status, press the On/Off key “ ” to off the main unit, at that time the operation icon “ ” on the
LCD of wire controller will disappear.
” to operate the main unit, at that time the LCD of wired
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Turn on the unit
When intend to shut the unit
Power up to module unit and initially deliver power to wire control.
Turn off the unit
Press “mode settings” key to set the
intended mode.
Press “OK” key to save the settings. Unit will run after press “ON/OFF”
key 3 minutes later.
Press the key again until all
modes are showed (i.e. Cooling,
Heating and Pump modes.)
Press “ON/OFF” key
To select turn-off settings
Setting operating modes and parameters
Press “Setting” key to enter the operation mode and parameters setting. The setting contents will change
as the following order each time the key is pressed:
A
TER
W
TEM
P
.
TIMER
MODE
TEMP. DIFFERENCE
1) Setting water temperature: under main page directly press the “▲” or “▼” to adjust the water
temperature, or press Setting” key to enter and then press “▲” or “▼” to adjust. At that time the
LCD will display Setting temperature and Water temperature parameter”, as the following display. Query water temperature setting: press the ” or ▲” key under the main page to query the set water temperature numerical value.
2) Timing setting: can set 3 timing periods on the wire controller: Timer 1, Timer 2, Timer 3, and then control the main unit to ON and
OFF in different periods. Setting method: press “Setting” key under
main page twice to enter timing setting. At that time the LCD will display as the following:
TIMER
1
ON
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
119
This time the hour of the clock will flash, it means the current setting is the hour of Timer 1On, press the “▲” or “▼” to adjust, press “▲” key when finished, and then the minute of the clock will flash, it means
the current setting is the minute of Timer 1“On”, press the “▲” or “▼” to adjust, press▲”key when finished, the LCD will display as the following:
TIMER
1
OFF
This time the hour of the clock will flash, it means the current setting is the hour of Timer 1 Off, press the “▲” or “▼” to adjust, press ▲” key when finished, and then the minute of the clock will flash, it means the current setting is the minute of Timing 1 Off”, press the “▲” or “▼” to adjust, press ▲” key
when finished, the LCD will display as the following:
TIMER
ON
At this time the hour of the clock will flash, it means the current setting is the hour of the Timer 2 “On”, and the follow setting method will be the same of the Timer 1. Similarly, the setting of Timing 3 is the same with this method. After setting, press “OK” key or wait for 7 seconds then the setting to be effective, and the LCD will display the effective timing information, as the following display:
TIMER
Example of Timing setting
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Main page
Press “Setting” key twice to enter hour setting
interface of “Timer 1 On”
Through the “▲” or “▼” key, set the hour
number of “Timing 1 On” to be 07
Press “ ” key to enter minute setting interface of
Timer 1 On”, adjust the minute number to be 10
Press “ ” key to enter hour setting interface of “Timer 1 Off”, adjust the hour number of “Timer 1
Off” to be 12
Press “ ” key to enter minute setting interface of “Timer 1 Off”, adjust the minute number to be 30
Whether press “OK” key
Successfully set the On time of
Timer 1” to be 07:10 and Off time
of “Timer 1 Off ” to be 12:30, then
back to the main page.
The setting steps of Timer 2” and Timer 3” are the same as Timer 1”,
after setting all the settings then press “OK” key, and the3 timing periods
will be effective, and then back to the main page.
Yes
No
Whether press “ ” key
Yes
Finish setting the On time of Timer 1” to be 07:10 and Off
time to be 12:30, then enter the
setting of “Timer 2”.
Timer 1” setting
failed, after 7 seconds, the page shift to
No
During any period of timing setting to press “OK” key , then the timing period has been set will be effective (only when the “On” and “Off” of one timing period have been set then this period setting can be finished). Press “Cancel” then cancel the setting. Query timing information: if query the timing hour which has been set,
press “ ” or “
” key under main page, the On and Off time of Timer1, Timer 2 and Timer3 will be displayed
in turns. Cancel timing: long press “Cancel” key for 3 seconds, then all the effective timing periods will be cancelled.
Note:
To avoid the timing error, each period of timing should not be crossed. E.g.:
Correct:
Wrong:
5:00
5:00
TIMER 1
8:00
7:00
8:00
TIMER 2
10:00 12:00
TIMER 2TIMER 1
12:00
18:00
TIMER 3
22:00
3) Set working mode (valid when wired controller set to 2,3,4)
Press “SET” key 3 times to enter the working mode setting when the main unit is off power. press the “▲” or “▼” key to adjust , press OK key or wait for 7 seconds to be effective, and back to the main page; During setting process to press Cancel key then will exit without saving. The controller will show different working mode when it is applied to different main unit and set to 2,3,4 respectively.
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121
Note:
Working mode setting is valid only when the unit is power off.
4) Set clock
This time the hour of the clock will flash, it means the current setting is the hour of the clock, press the “▲” or “▼” to adjust, press ▲” key when finished, and then
the minute of the clock will flash, it means the current setting is the minute of the clock, press the “▲” or “▼”
to adjust, press OK key when finished or wait for 7 seconds to be effective; during the setting process press the Cancel key, then it will exit without saving.
Note:
For getting the correct timing on and timing off hour, please correctly set the clock!
16.2.3. Combination of key functions
1) HYSTERESIS setting function
a. Through the hysteresis setting, the system can adjust the load effectively. b. The adjusting logic of cooling mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the outdoor unit)
c. The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the outdoor unit)
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
T
Ts-δ
2
<
Ts+1
T Ts-1+δ
Ts-1+δ
T
T
Tj2
-
δ
T
>
Ts
Tj2
+1
-
δ
(TAL: total outlet water temperature)
2) ADDRESS setting function
The address of wire controller can be set by pressing this button. The address range 0~15, therefore, 16 wire controller could be parallel at most. Operation method: Press “Constraint” "▲" two button for 3
seconds to enter the wired remote address selection. Press “ ” or “▲” key to select the desired value. 7S key operation or press “OK” key to exit and save the settings and return Page. Not saved during set up,
press the Cancel key parameters and exit.
Operation method: Turned off, press the "Constrain" "" 2 button for 3 seconds to enter the hysteresis setting selection. Can be adjusted Hysteresis parameter δ = (2,3,4,5 °C). Press “ ” or
key to select the desired value, 7S key operation Or press the
Enter key, then exit and save the settings and return to the main page. During setup, press the "Cancel" key, does not save the parameters and exit. The factory default δ = 2°C .
3) The fault is cleared This feature can clear the fault and protection has been ruled out.
Methods of operation: press the "Constraint" " " two button for 3 seconds to clear the fault. Page of the main page and Inspection press this key combination, you can clear the entire system fault, the fault code cleared at the same time.
16.2.4. Check
1) Check function allows the user to query all the operating parameters and error and protection information
of the main unit.
2) Enter method: long press “Set” key for 3 seconds to enter check interface, as the figure display:
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
123
3) Press the “▲” or “▼” key to adjust the main unit serial number can query 16 sets main units status
information from #0#15. Press “ ” or ▲” to adjust the spot check sequence number of one main unit then can query all the status information of this unit. Spot check content according to the main unit model
wired controller:
1
outlet water temperatureTou->2、inlet water temperatureTin->
3
outdoor ambient temperaturesT4->4、outdoor pipe temperatureT3A->
5
outdoor pipe temperatureT3B->6、current of the compressor IA->
current of the compressorIb->8、anti-frozen temperatureT6->
7
electronic expansion valv openingFA->10、electronic expansion valv openingFb->
9
11
Last one error or protection->12、Last second error or protection->
13
Last third error or protection->1、outlet water temperatureTou„„
16.2.5. Error alarm handling
When the unit has error or protection, ” icon will be flashed. Long press Setting” for 3 seconds to enter spot check, and then press the “▲” or “▼” key to query the unit of 0-15#, if the error icon was on
during query, that means the corresponding outdoor unit has error or protection at that time, and then can spot check the last 1, 2, 3 times error or protection of this outdoor unit. After clear the error or protection, the error icon will disappear.
16.2.6. Installation procedure
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Use PQE connect with each other when several wired-controllers are parallel. The wiring procedure and principles are shown in the figure:
16.2.7. Basic conditions of operating the wired controller
1) Applicable range of supply voltage: Input voltage is 10V AC.
2) Operating environment temperature of wired controller: -10°C~+43°C.
3) Operating RH of wired controller: RH 40%~RH90%.
16.2.8. Main functions of the wire controller as follows:
1) Touch key operation;
2) LCD displays operation parameters;
3) Multiple timer;
4) Buzzer prompt tone and alarm functions;
5) Real-time clock function.
16.2.9. Control and protection function of unit
The unit has the following protection functions:
1) Current cut-off protection
2) Power supply phase sequence protection
3) Protection for over-low suction pressure
4) Protection for compressor overcurrent
5) Protection for compressor overload
6) Anti-freezing protection
7) Protection for over-high discharge pressure
8) Protection for outlet and inlet water temperature
The unit also has other control functions:
1) Plug and play system
2) RS-485/TS232 Standard serial communication port
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
125
Wired controller
Network control
software
MODBUS
gateway
KJR-120A/MBTE
√ √ ×
KJRM-120D/BMK-E
√ × √
Max. 16 units
(P Q E)
(X Y E)
Max. 16
Modbus gateway
Modbus gateway
(P Q E)
(X Y E)
Max. 16 units
Computer
MODBUS gateway
The Modbus gateway can be customized, the MODBUS protocol built in wired controller KJRM-120D/BMK-E, it realizes intelligent network control by X Y E ports. It can connect max. 16 wired controllers, each wired controller can control max.16 units.
Note
The gateway will be used with wired controller togetherThe LONWORKS gateway can be use independently without wired controller, as below:
LONWORKS
gateway
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
(Heating)→ (Pump)
16.3 Wired controller KJR-120A/MBTE(Optional)
16.3.1 NAMES OF KEYS ON THE WIRED CONTROLLER AND THE KEYPAD OPERATION
DESCRIPTION
TEMP S ET
TIM ER SET
MODE
ALA RM CLEA R
QUER Y
CLOC K
TIM ER QUER Y
R
6 8
7
2
3
4
17
5
LOCK
LOCK
15
HYSTER ESIS
ADDRESS SE T
1
9
12
13
11
10
18
16
14
PAGED OWN
ON/ OFF
OK
CANCEL
PAGEUP
ADDR ESS / -
ADDR ESS /+
TIMER SWITCH
ADDRESS S ET
HYST ERE SIS
ON/OFF button:
In the power off status, press this key and the startup indicator led comes on, and the wired controller enters the startup status and keeps the current set information such as temperature value, timing. In the startup status, press this button once, and the startup indicator led goes off and transmits the shutdown information.
Operation mode button:
In the power off status, press this button to select the operation mode. This function is invalid at power on status.
Modes shifted sequence as follows:
1). Mode of KJR-120A/MBTE air cooled scroll wired controller:
(Cooling)
2). Cooling only air cooled scroll wired controller:
(Cooling) (Pump)
ALARM CLEAR button
Press the button, then can clear some errors which need to operate manually for recovery. These errors represent there are problems while the unit is operating, but will not affect the system safety. If this type of error came out frequently then it needs to check and maintain the unit.
QUERY button
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
127
Press the button, inquire state information of No. 0 to No. 15 outdoor units (the default is state information of No.0 unit) and enter inquiry state. After entering inquiry state, inquire the information of the former unit or the
following unit through “ADDRESS/+” and “ADDRESS/-”. After a certain outdoor unit is selected, state information of the outdoor unit can be inquired through “page up” and “page down”. There are two possible
inquiry sequences.
1).Errorprotection outlet water temperature Touinlet water temperature Tinoutdoor ambient
temperatures T4outdoor pipe temperature T3Aoutdoor pipe temperature T3bcurrent of the compressor IA current of the compressor Ibanti-freezing temperature T6electronic expansion valve
opening FAelectronic expansion valve opening Fb→Error......The wired controller only displays the last
fault information and the protection information, when query is conducted on fault and protection information.
2). outdoor pipe temperature T3AprotectionErroroutlet water temperature Toucurrent of the
compressor Ibcurrent of the compressor IA Setting temperature Tsoutdoor ambient temperatures T4
outdoor pipe temperature T3boutdoor pipe temperature T3A......The wired controller only displays the
last fault information and the protection and protection information.
CLOCK button
Press the CLOCK button once Press for the first time, and enter to the week adjustment, Press for the second time, and enter to the hour adjustment,【Press for the third time】,and enter the minute
adjustment. The numerical valve of week, hour and minute can be adjusted by “ADDRESS/+” and “ADDRESS/-”, after the adjustment then press the OK button for the setting confirmation.
TEMP SET button
Setup the total water outlet temperature in cooling and heating mode. The numerical valve of temperature setting can be adjusted by “ADDRESS/+” and “ADDRESS/-”
TIMER SET button
Press the button can enter the timer set adjustment. The numerical valve of the week, the start period, the end period, the operation mode and the setting temperature can be adjusted by “ADDRESS/+” and “ADDRESS/-”.
OK button
Once finished upon, press OK key, wired controller will delivery order to main unit.
CANCEL button
Press the button can return to the interface previous and not save the setting information when the timer switch is ON.
If press the button for 3 seconds continuously, all the setting information of the timer will be cleared.
○10 ADDRESS/+ button
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Press this button at Check mode, when select the next scroll, the operation status of the next scroll will display; if the current scroll is 15#, and the next one is 0#.
Press this button for add address at wire address setting mode. If the wired controller address is 15, press this key will display the next address is 0.
Press this button for add temperature at wire temperature setting mode. Press this button for add clock or time at wire clock or time setting mode.
11 ADDRESS/- button
Press this button at query mode, when select the previous scroll, the operation status of the previous scroll will display; if the current scroll is 0#, and the previous one is 15#.
Press this button for minus address at wire address setting mode. If the wired controller address is 0, press this key will display the next address is 15.
Press this button for minus temperature at wire temperature setting mode. Press this button for minus clock or time at wire clock or time setting mode.
12 ○13 PAGEUP/DOWN button to spot check the operation parameters of unit in the main menu.
14 HYSTERESIS button (Hidden)
Use a small round bar with 1mm diameter to press this button, then can adjust the return parameter δ= (2,3,4,5). The numerical valve of hysteresis can be adjusted by “ADDRESS/+” and “ADDRESS/-”, after the adjustment then press the OK button for the setting confirmation.
The factory defaults δ=2.
15 LOCK button (Hidden)
Use a 1mm-diameter round bar to lock the current setting. Press this button again to unlock.
16 ADDRESS SET button (Hidden)
The address of wired controller can be set by pressing this button. The address range 0~15, therefore, 16 wired controller could be parallel at most.
When there is only one wired controller, it is necessary to execute this setting, the address of wired controller should be set to '0'(main wired controller).
17 TIMER QUERY button
Press the button can inquire the timer setting information, such as the week, the setting operation mode, the starting period, the end period and the setting temperature and so on.
18 TIMER SWITCH button
128 Control system
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
129
(the parameter of δ1,δ2,Tj1 and Tj2 are
decided by the outdoor unit)
Press the button can open the weekly timer function or close the weekly timer function.
16.3.2. OPERATION PROCEDURE OF WIRED CONTROLLER
Operation procedure of mode setting
1. Press MODE at shutdown status, you could select appropriate mode as you want. The function is invalid
at startup status.
2. The mode which you can select depends on outdoor unit.
Operation procedure of water temperature setting
1. Press [TEMP SET] button of wired controller when background light is on.
2. Press [ADDRESS/+] or [ADDRESS/- ] button, you can select the water temperature. Temperature range
is not same in different operation mode.
3. Temperature range depends on outdoor unit.
Operation procedure of system ON/OFF
Press [ON/OFF] button, running indicator of wired controller is light, unit is start to run, and display running status at wired controller. Press this button once again, unit will stop running.
Operation procedure of system information querying
1. Press [QUERY] ,enter Check status.
2. Press [ADDRESS/+] or [ADDRESS/-] button, select the unit you want to query.
3.Press [PAGEUP] or [PAGEDOWN] button to query the unit information, which includes E-, P-, Tou, Tin,
T4,T3A, T3b ,IA, Ib, T6, FA, Fb or T3A, P-, E-,Tout, Ib, IA, Ts, T4, T3B.
Operation of remote on/off
If the main unit’s is under the remote on/off control, Net-ON flashes, and communicate with upper unit is invalid.
Operation procedure of HYSTERESIS TEMP.SET(δ)
1.Through the hysteresis setting, the system can adjust the load effectively.
2.The adjusting logic of cooling mode :
(The parameter of δ1,δ2,Tj1 and Tj2 are decided by the outdoor unit)
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
(the parameter of δ1,δ2,Tj1 and Tj2 are
decided by the outdoor unit)
3: The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the outdoor unit)
16.3.3 The adjusting logic of heating mode: (the parameter of δ1,δ2,Tj1 and Tj2 are decided by the
outdoor unit)
T
Ts-δ
<
T
Ts-1+δ
Ts-1+δ
Tj2
T
Ts+1
T
>
T
2
-
δ
Ts
Tj2
+1
-
δ
(TAL: total outlet water temperature)
Fault alarm handling
1.When unit fails or the wired controller detects failure of communication with the outdoor units, the indicator
blinks. After all errors of the system and the wired controller are eliminated, the indicator stops blinking. The fault indicator and the operation indicator share the same LCD.
2.Some errors will be auto cleared after the errors are cleared, and some error must press the “ALARM
CLEAR” button and then be cleared after the errors are cleared. The details can refer to the error code table.
If this type of error comes out frequently, then need to check and maintain the unit.
OVERVIEW OF WIRED CONTROLLER
Basic conditions of operating the wired controller:
1. Applicable range of supply voltage: Input voltage is AC 220V±10%, powered to wired controller by
attached power adapter.
2. Operating environment temperature of wired controller: -15~+43.
3. Operating RH of wired controller: RH40%~RH90%.
16.3.4 OUTLINE OF FUNCTIONS
This wired controller provides the following functions:
1. Connect with the outdoor unit through the terminals P, Q and E. Connect with the upper unit through the
terminals X, Y and E(reserved).Connect with other wired controllers through the terminals P, Q and E.
2. Set the action mode through the keypad operation.
3. Provide the LCD display function.
4. Provide the timing startup function.
5. Real-time clock function (the wired controller inner place 3V battery)
When the wired controller is powered on, the LCD will display the current time; if it is powered off, the clock will not be displayed, then it will be auto updated when the wired controller is re-power on.
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131
16.3.5 NAME AND FUNCTION DESCRIPTION OF LCD SCREEN OF WIRED CONTROLLER
Display operation mode
Display time data
16.3.6 INSTALLATION PROCEDURE
Installation procedure:
Outdoor unit
#00
Outdoor unit
#01
Outdoor unit
#02
Display operation status
Display query data
Outdoor unit
#15
Wired Controller
#00
Use PQE connect with the outdoor units.
NOTE:
Please connect the attached shorted-wires to the corresponding communication port COM(I) or COM(O) in the main control board of the last parallel unit (dial code ). Directly connect to the last parallel unit if only one unit is connected.
The wiring procedure and principles are shown in the figure:
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Outdoor electric
control box
w
k
y
c
lo
a
l
a
l
r
e
B
G
Y
Please use 3-cord with shielding wire for connection. The wire length depends on the specific situation in the installation.
Communicate with
upper unit(reserved).
If it is under the host computer network control, displays, otherwise there is no display.
E
Y
X
Q
P
wired controller
16.3.7 USING METHOD CLOCK SETTING
CLOCK
or
or
ADDRESS/-
ADDRESS/-
set week
set hour
ADDRESS/+
OK
ADDRESS/+
OK
5-bit terminal base
ADDRESS/+
OK
132 Control system
or
ADDRESS/-
set done
set minute
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
133
e
e
WEEKLY TIMER SETTING
TIMER SET
ADDRESS/+
Y
ADDRESS/+
Y
ADDRESS/+
Y
ADDRESS/+
Y
ADDRESS/+
Y
ADDRESS/+
Y
ADDRESS/+
Y
Set Timer Period 2
or
OK
or
OK
or
OK
or
OK
or
OK
or
OK
or
OK
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
Select week
Set Period 1 start hour
Set Period 1 start minute
Set Period 1 end hour
Set Period 1 end minute
Set Period 1 mode
Set Period 1 temperatur
Set Timer Period 2
ADDRESS/+
OK
Y
ADDRESS/+
OK
Y
ADDRESS/+
OK
Y
ADDRESS/+
OK
Y
ADDRESS/+
OK
Y
ADDRESS/+
OK
Y
ADDRESS/+
OK
or
or
or
or
or
or
or
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
ADDRESS/-
Set Period 2 start hour
Set Period 2 start minute
Set Period 2 end hour
Set Period 2 end minute
Set Period 2 mode
Set Period 2 temperatur
Select week
NOTE:
In operating, press the key "CANCEL", to turn back to the previous step or the normal display interface.
WEEKLY TIMER QUERY
TIMER QUERY
or
or
ADDRESS/-
ADDRESS/-
Select query week
Select queryPeriod1
ADDRESS/+
OK
Y
ADDRESS/+
orPeriod 2
OK
Y
ADDRESS/+
OK
or
ADDRESS/-
Y
Tonormaldisplay
Select query start time or end time
Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
NOTE:
In operating, press the key "CANCEL", to turn back to the previous step or the normal display interface.
1.Before power failure of the heating water system or wired controller, the wired controller memorizes the status of the unit automatically, and sets the water temperature value except timing on/off function. After being powered on, the wired controller will send the relevant signals to the heating water system according to memorized status before power failure, in order to ensure that the unit can run in the originally set status after restoration of the power supply.
2. In the normal status, the background light is off. Press any key can only turn on the background light .
3. In order to protect the equipment, it is not allowed to change the running mode quickly or frequently. It should operate the wired controller to start up the unit after 3 minutes later or all units are shutdown.
4. The wired controller and the outdoor unit must connect with the same power supply, powered up and powered off simultaneously. It is not allowed to cut off the power supply separately.
5. When several wired controllers are parallel connected, the timing message can’t communicating in these wired controllers, and the timing will work separately. In order not to confuse, we suggest set the timing message on one wired controller for the reason of indoor unit performance is compliance with the sequence of setting time.
6.During changing or installing the battery, pay attention to the “+”,“-” poles of the battery and install it correctly, or will damage the control panel or battery, even worse will put lives at risk.
134 Control system
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-2014-05
Temp.
Ratio
Temp.
Ratio
Temp.
Ratio
Temp.
Ratio
-20
115.266
20
12.6431
60
2.35774
100
0.62973
-19
108.146
21
12.0561
61
2.27249
101
0.61148
-18
101.517
22
11.5
62
2.19073
102
0.59386
-17
96.3423
23
10.9731
63
2.11241
103
0.57683
-16
89.5865
24
10.4736
64
2.03732
104
0.56038
-15
84.219
25
10
65
1.96532
105
0.54448
-14
79.311
26
9.55074
66
1.89627
106
0.52912
-13
74.536
27
9.12445
67
1.83003
107
0.51426
-12
70.1698
28
8.71983
68
1.76647
108
0.49989
-11
66.0898
29
8.33566
69
1.70547
109
0.486
-10
62.2756
30
7.97078
70
1.64691
110
0.47256
-9
58.7079
31
1.59068
111
0.45957
-8
56.3694
32
1.53668
112
0.44699
-7
52.2438
33
1.48481
113
0.43482
-6
49.3161
34
1.43498
114
0.42304
-5
46.5725
35
1.38703
115
0.41164
-4
44
36
1.34105
116
0.4006
-3
41.5878
37
1.29078
117
0.38991
-2
39.8239
38
1.25423
118
0.37956
-1
37.1988
39
1.2133
119
0.36954
0
35.2024
40
1.17393
120
0.35982
1
33.3269
41
1.13604
121
0.35042
2
31.5635
42
4.76253
82
1.09958
122
0.3413
3
29.9058
43
4.5705
83
1.06448
123
0.33246
4
28.3459
44
4.38736
84
1.03069
124
0.3239
5
26.8778
45
4.21263
85
0.99815
125
0.31559
6
25.4954
46
4.04589
86
0.96681
126
0.30754
7
24.1932
47
3.88673
87
0.93662
127
0.29974
8
22.5662
48
3.73476
88
0.90753
128
0.29216
9
21.8094
49
3.58962
89
0.8795
129
0.28482
10
20.7184
50
3.45097
90
0.85248
130
0.2777
11
19.6891
51
3.31847
91
0.82643
131
0.27078
12
18.7177
52
3.19183
92
0.80132
132
0.26408
13
17.8005
53
3.07075
93
0.77709
133
0.25757
14
16.9341
54
2.95896
94
0.75373
134
0.25125
15
16.1156
55
2.84421
95
0.73119
135
0.24512
16
15.3418
56
2.73823
96
0.70944
136
0.23916
17
14.6181
57
2.63682
97
0.68844
137
0.23338
18
13.918
58
2.53973
98
0.66818
138
0.22776
19
13.2631
59
2.44677
99
0.64862
139
0.22231
2.Temperature-Resistance characteristic sheet for pipe temperature sensorambient temperature sensorinlet water temperature sensor and outlet water temperature sensor.
Sensor characteristic sheet Unit:Temp:℃--K, Ratio:KΩ
7.62411 71
7.29464 72
6.98142 73
6.68355 74
6.40021 75
6.13059 76
5.87359 77
5.62961 78
5.39689 79
5.17519 80
4.96392 81
164 Appendix
MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
165
Tem.
Ratio
Tem.
Ratio
Temp.
Ratio
Temp.
Ratio
Temp.
Ratio
-40
2889.60000
13
148.39300
66
17.29460
119
3.45032
172
0.97524
-39
2704.61400
14
141.59040
67
16.70980
120
3.35400
173
0.95632
-38
2532.87200
15
135.14040
68
16.13360
121
3.26198
174
0.93826
-37
2373.34200
16
129.00000
69
15.59180
122
3.17340
175
0.92020
-36
2225.07800
17
123.17780
70
15.06720
123
3.08740
176
0.90214
-35
2087.22000
18
117.65660
71
14.55980
124
3.00484
177
0.88494
-34
1957.44600
19
112.41060
72
14.07820
125
2.92400
178
0.86774
-33
1836.70200
20
107.43980
73
13.60520
126
2.85090
179
0.85054
-32
1724.38600
21
102.70120
74
13.15800
127
2.78038
180
0.83420
-31
1619.72400
22
98.19480
75
12.72800
128
2.71158
181
0.81614
-30
1522.20000
23
93.92060
76
12.30660
129
2.64450
182
0.79808
-29
1430.54120
24
89.86140
77
11.91100
130
2.58000
183
0.78088
-28
1345.07440
25
86.00000
78
11.52400
131
2.51636
184
0.76454
-27
1265.35240
26
82.31060
79
11.15420
132
2.45444
185
0.74820
-26
1190.94520
27
133
2.39424
186
0.73358
-25
1121.45720
28
134
2.33576
187
0.71982
-24
1056.14020
29
135
2.27900
188
0.70606
-23
995.10600
30
136
2.22396
189
0.69230
-22
938.04500
31
137
2.17150
190
0.67940
-21
884.66480
32
138
2.11990
-20
834.71600
33
139
2.07002
-19
787.65680
34
140
2.02100
-18
743.58180
35
141
1.97370
-17
702.29320
36
142
1.92812
-16
663.59320
37
143
1.88340
-15
627.28400
38
144
1.83954
-14
593.03020
39
145
1.79740
-13
560.88340
40
45.81220
93
7.18530
146
1.75354
-12
530.71460
41
44.00620
94
6.97288
147
1.71140
-11
502.36900
42
42.29480
95
6.76820
148
1.67012
-10
475.74340
43
40.65220
96
6.57126
149
1.62970
-9
450.57120
44
39.07840
97
6.38120
150
1.59100
-8
426.90400
45
37.58200
98
6.19716
151
1.54886
-7
404.64720
46
36.14580
99
6.02000
152
1.50844
-6
383.70620
47
34.76120
100
5.84800
153
1.46888
-5
363.98640
48
33.44540
101
5.68632
154
1.43018
-4
345.31580
49
32.18980
102
5.52980
155
1.39320
-3
327.73740
50
30.98580
103
5.37930
156
1.36224
-2
311.16520
51
29.83340
104
5.23310
157
1.33214
-1
295.55620
52
28.72400
105
5.09120
158
1.30290 0 280.82440
53
27.66620
106
4.95360
159
1.27452
1
266.85800
54
26.65140
107
4.82030
160
1.24700
2
253.68280
55
25.67960
108
4.69216
161
1.21948 3 241.24720
56
24.75080
109
4.56660
162
1.19368 4 229.49960
57
23.85640
110
4.44620
163
1.16788
5
218.40560
58
23.00500
111
4.32322
164
1.14208
6
207.87060
59
22.17940
112
4.20454
165
1.11800
7
197.91180
60
21.39680
113
4.08930
166
1.09650 8 188.49480
61
20.64000
114
3.97750
167
1.07500
9
179.59380
62
19.90900
115
3.87000
168
1.05436
10
171.16580
63
19.22100
116
3.75992
169
1.03458
11
163.15920
64
18.55020
117
3.65328
170
1.01480
12
155.57400
65
17.91380
118
3.55008
171
0.99502
3.Temperature-Resistance characteristic sheet for discharge temperature sensor of digital compressor.
Sensor characteristic sheet Unittemp:--K, Ratio:KΩ
78.81040 80 10.79300
75.47360 81 10.44900
72.30020 82 10.12220
69.28160 83 9.80400
66.39200 84 9.49440
63.64860 85 9.20200
61.02560 86 8.91820
58.53160 87 8.64300
56.15800 88 8.37640
53.88760 89 8.11840
51.72040 90 7.86900
49.65640 91 7.64110
47.69560 92 7.40460
Appendix
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