Water Cooled Chiller

Transcription

sm
Water Cooled Chiller
Product Data Catalog
For chillers with R-410A refrigerant
For Modules:
MS010XC_W-410A, MS015XC_W-410A, MS020XC_W-410A,
MS030XC_W-410A, MS050XC_W-410A, MS070XC_W-410A,
MS085XC_W-410A
Water Cooled Chiller Catalog
TABLE OF CONTENTS
Product Introduction................................................................................................................................................... 3
Performance Data....................................................................................................................................................... 4
General Data Table...................................................................................................................................................... 6
Pressure Drop Tables................................................................................................................................................... 7
Electrical Data............................................................................................................................................................. 8
Chiller Drawing........................................................................................................................................................... 9
Sample Piping Schematics.......................................................................................................................................... 10
Controller Schematics................................................................................................................................................ 12
Mechanical Specifications.......................................................................................................................................... 13
MODEL NUMBER NOMENCLATURE
Existing
MS
50
New
MS
X
050
1
X
H
N
1
W
1
H
0
R-410A
1
A
0
A
A
-410A
Refrigerant
Condenser6
Evaporator5
AHRI Version - if applicable
Application4
Voltage3
Configuration2
Module Number (1 - single, 2 - multiple)
AHRI Certified (C - certified, N - Not certified)
Compressor Type1
Module Nominal Capacity (10 - 160 tons)
Series
1 B: Bristol, C: Trane Cornerstone, R: Bitzer Screw, S: Trane Scroll, T: Danfoss Turbocor, Z: Copeland scroll (old elec), X: Copeland Scroll (ZP), A: Copeland Scroll (ZR)
2 1- Standard, 2- Total access, 3 - Evap extended headers, 4 - Cond extended headers, 5 - Both extended headers, V - others
3 A - 208/3/60, L - 230/3/60, H - 460/3/60, C - 575/3/60, D - 200/3/50, E - 400/3/50, F - 380/3/60, S - 220/230/1/60, V - other
4 C - Single module temp controller, A-Air Cooled split, D - Cond unit, F - Fluid cooler (high temp),H - Heat recovery, R - Heat pump, W - Water cooled
5 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, V - Other
6 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, E - Double wall brazed, V - Other
Made in the USA
2
PRODUCT INTRODUCTION
HIGHLY DEPENDABLE
PROGRAMMABLE LOGIC
CONTROLLER (PLC) SYSTEM
•Multiple independent systems for redundancy
•Comprehensive computer monitoring of operations
•Automatic diagnostic recording of fault conditions
•Rotates lead compressor every 24 hours
•Manual switch allows redundancy control as each module has a
processor allowing it to run even if master controller fails
•Optional Fail-To-Run software
•Display at each module
•Remote display option
SIMPLE TO OPERATE
•Large LCD screen displays information in plain English
•Simple keypad provides control of unit operations
DESIGN FLEXIBILITY
•Wide array of module combinations
•Install only the capacity required at the time
EASY TO INSTALL
•Compact modules fit through standard doorways and into elevators
•Modules interconnect easily and quickly
•All refrigeration systems are factory charged and run tested
SIMPLE TO SERVICE
•Service can often be performed on a convenient,
non-emergency basis
•Most components are standard, off the shelf design
Chilled Water
Busbar Duct
Control Box
Compressors
Front
Side View
Back
Condenser Water
3
PERFORMANCE DATA
SINGLE
MODULE
ENTERING CONDENSER WATER TEMPERATURE
MS010X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
10.3
10.8
11.2
11.4
11.6
12.1
12.6
75°F
Input KW/
KW Ton
7.8 0.757
7.8 0.722
7.8 0.696
7.8 0.684
7.7 0.664
7.7 0.636
7.7 0.611
Output
Tons
10.1
10.5
10.9
11.1
11.3
11.8
12.3
80°F
Input KW/
KW Ton
8.3 0.822
8.2 0.781
8.2 0.752
8.2 0.739
8.2 0.726
8.1 0.686
8.1 0.659
MS015X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
17.4
18.1
18.8
19.2
19.6
20.3
21.1
75°F
Input KW/
KW Ton
12.1 0.695
12.1 0.669
12.2 0.649
12.2 0.635
12.2 0.622
12.2 0.601
12.3 0.583
MS020X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
MS030X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
9.8
10.2
10.6
10.8
11.0
11.5
11.9
85°F
Input KW/
KW Ton
8.7 0.888
8.7 0.853
8.7 0.821
8.6 0.796
8.6 0.782
8.6 0.748
8.5 0.714
Output
Tons
17.0
17.6
18.3
18.7
19.0
19.8
20.5
80°F
Input KW/
KW Ton
12.9 0.759
12.9 0.733
12.9 0.705
12.9 0.690
12.9 0.679
12.9 0.652
13.0 0.634
Output
Tons
16.5
17.2
17.8
18.2
18.5
19.3
20.0
85°F
Input KW/
KW Ton
13.6 0.824
13.6 0.791
13.7 0.770
13.7 0.753
13.7 0.741
13.7 0.710
13.7 0.685
Output
Tons
20.9
21.6
22.4
22.8
23.2
24.0
24.9
75°F
Input KW/
KW Ton
14.4 0.689
14.4 0.667
14.4 0.643
14.4 0.632
14.5 0.625
14.5 0.604
14.5 0.582
EER Output
Tons
17.4 20.3
18.0 21.1
18.6 21.9
19.0 22.3
19.3 22.7
19.9 23.5
20.6 24.3
80°F
Input KW/
KW Ton
15.0 0.739
15.0 0.711
15.1 0.689
15.1 0.677
15.1 0.665
15.1 0.643
15.2 0.626
Output
Tons
31.0
32.2
33.4
34.1
34.7
36.0
37.3
75°F
Input KW/
KW Ton
21.6 0.697
21.8 0.677
21.9 0.656
22.0 0.645
22.1 0.637
22.3 0.619
22.5 0.603
Output
Tons
30.3
31.5
32.7
33.3
33.9
35.2
36.4
80°F
Input KW/
KW Ton
22.6 0.746
22.8 0.724
22.9 0.700
23.0 0.691
23.0 0.678
23.2 0.659
23.4 0.643
EER
15.8
16.5
17.3
17.6
18.0
18.8
19.6
EER
17.2
17.9
18.5
18.9
19.2
19.9
20.6
EER
17.2
17.8
18.3
18.6
18.9
19.4
19.9
Output
Tons
9.5
9.9
10.3
10.5
10.7
11.2
11.6
90°F
Input KW/
KW Ton
9.2 0.986
9.2 0.929
9.1 0.883
9.1 0.867
9.1 0.850
9.1 0.813
9.0 0.776
Output
Tons
16.0
16.7
17.3
17.7
18.0
18.7
19.4
90°F
Input KW/
KW Ton
14.4 0.900
14.4 0.862
14.5 0.838
14.5 0.819
14.5 0.806
14.5 0.775
14.5 0.747
13.3
13.9
14.5
14.7
14.9
14.5
16.1
EER Output
Tons
16.3 19.8
16.8 20.5
17.4 21.3
17.7 21.7
18.0 22.1
18.6 22.9
19.3 23.8
85°F
Input KW/
KW Ton
15.8 0.798
15.8 0.771
15.8 0.742
15.8 0.728
15.8 0.715
15.9 0.694
15.9 0.668
EER Output
Tons
15.0 19.1
15.6 19.9
16.2 20.7
16.5 21.1
16.7 21.5
17.3 22.3
17.9 23.1
90°F
Input KW/
KW Ton
16.6 0.869
16.6 0.834
16.7 0.807
16.7 0.791
16.7 0.777
16.7 0.749
16.7 0.723
95°F
Input KW/Ton
EER Output
Tons
KW
13.8 18.5 17.6 0.951
14.4 19.3 17.6 0.912
14.9 20.0 17.6 0.880
15.2 20.4 17.6 0.863
15.5 20.8 17.6 0.846
16.0 21.6 17.7 0.819
16.6 22.5 17.7 0.787
Output
Tons
29.5
30.7
31.8
32.4
33.0
34.3
35.5
85°F
Input KW/
KW Ton
23.7 0.803
23.8 0.775
24.0 0.755
24.0 0.741
24.1 0.730
24.3 0.708
24.4 0.687
Output
Tons
28.7
29.8
31.0
31.6
32.2
33.4
34.6
90°F
Input KW/
KW Ton
24.9 0.868
25.0 0.839
25.1 0.810
25.2 0.797
25.3 0.786
25.4 0.760
25.5 0.737
EER
14.6
15.3
16.0
16.3
16.7
17.4
18.1
EER
15.8
16.4
17.1
17.4
17.7
18.3
19.0
EER
16.1
16.6
17.1
17.4
17.6
18.2
18.7
EER
13.5
14.1
14.7
15.0
15.4
16.1
11.9
EER
14.5
15.1
15.7
16.0
16.3
16.9
17.5
EER
14.9
15.4
15.9
16.2
16.5
17.0
17.5
EER
12.4
12.9
13.5
13.8
14.1
14.8
15.4
EER
EER
13.8
14.3
14.8
15.0
15.3
15.8
16.3
95°F
Output Input KW/Ton EER
Tons
KW
9.2
9.7 1.054 11.3
9.6
9.7 1.010 11.9
10.0
9.6 0.960 12.4
10.2
9.6 0.941 12.7
10.4
9.6 0.923 13.0
10.8
9.6 0.889 13.6
11.2
9.5 0.848 14.2
95°F
Tons
KW
15.6 15.3 0.981 12.2
16.2 15.3 0.944 12.7
16.8 15.3 0.911 13.2
17.2 15.3 0.890 13.4
17.5 15.3 0.874 13.7
18.2 15.3 0.841 15.3
18.9 15.4 0.815 14.7
EER
12.6
13.1
13.6
13.9
14.2
14.7
15.2
95°F
Tons
KW
27.8 26.2 0.942 12.7
28.9 26.3 0.910 13.2
30.1 26.4 0.877 13.7
30.6 26.5 0.866 13.9
31.2 26.5 0.849 14.1
32.4 26.6 0.821 14.6
33.6 26.8 0.798 15.1
All performance data is based on a 10°F chilled water temperature drop through the evaporator and condenser. For total chiller performance multiply above output (TONS) and input (KW) by
the number of modules. For selection procedures see selection software at www.multistack.com.
4
PERFORMANCE DATA
SINGLE
MODULE
ENTERING CONDENSER WATER TEMPERATURE
MS050X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
50.3
52.3
54.4
55.4
56.5
58.6
60.9
75°F
Input KW/
KW Ton
34.7 0.690
34.8 0.665
35.0 0.643
35.1 0.634
35.2 0.623
35.4 0.604
35.6 0.585
MS070X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
65.8
68.4
71.0
72.4
73.8
76.6
79.5
75°F
Input KW/
KW Ton
44.9 0.682
45.1 0.659
45.4 0.639
45.6 0.630
45.7 0.619
46.0 0.601
46.4 0.584
Output
Tons
81.0
84.2
87.5
89.2
90.9
94.5
98.1
75°F
Input KW/
KW Ton
56.8 0.701
56.9 0.676
57.1 0.653
57.3 0.642
57.4 0.631
57.6 0.610
57.9 0.590
MS085X_W
Leaving Chilled
Water °F
40°F
42°F
44°F
45°F
46°F
48°F
50°F
Output
Tons
49.0
50.9
52.9
54.0
55.0
57.1
59.3
80°F
Input KW/
KW Ton
36.4 0.743
36.5 0.717
36.7 0.694
36.8 0.681
36.8 0.669
37.0 0.648
37.2 0.627
Output
Tons
64.1
66.6
69.2
70.6
71.9
74.6
77.4
80°F
Input KW/
KW Ton
47.1 0.735
47.3 0.710
47.6 0.688
47.7 0.676
47.9 0.666
48.1 0.645
48.5 0.627
EER Output
Tons
17.1 79.2
17.7 82.3
18.4 85.6
18.7 87.3
19.0 88.9
19.7 92.4
20.3 96.0
80°F
Input KW/
KW Ton
59.2 0.747
59.3 0.721
59.4 0.694
59.5 0.682
59.6 0.670
59.8 0.647
60.0 0.625
EER
17.4
18.0
18.6
18.9
19.3
19.9
20.6
EER
17.6
18.2
18.8
19.1
19.4
20.0
20.6
Output
Tons
47.6
49.5
51.5
52.5
53.5
55.6
57.7
85°F
Input KW/
KW Ton
38.2 0.803
38.4 0.776
38.5 0.748
38.6 0.735
38.6 0.721
38.8 0.698
38.9 0.674
Output
Tons
62.4
64.8
67.4
68.7
70.0
72.6
75.4
85°F
Input KW/
KW Ton
49.5 0.793
49.7 0.767
49.9 0.740
50.1 0.729
50.2 0.717
50.5 0.696
50.7 0.672
EER Output
Tons
16.1 77.2
16.7 80.3
17.3 83.5
17.6 85.2
17.9 86.8
18.5 90.2
19.2 93.7
85°F
Input KW/
KW Ton
61.9 0.802
62.0 0.772
62.1 0.744
62.2 0.730
62.2 0.717
62.4 0.692
62.5 0.667
EER
16.2
16.7
17.3
17.6
17.9
18.5
19.2
EER
16.3
16.9
17.5
17.7
18.0
18.6
19.2
Output
Tons
46.2
48.1
50.0
51.0
52.0
54.0
56.1
90°F
Input KW/
KW Ton
40.2 0.870
40.3 0.838
40.5 0.810
40.5 0.794
40.6 0.781
40.7 0.754
40.9 0.729
Output
Tons
60.6
63.0
65.5
66.7
68.0
70.6
73.2
90°F
Input KW/
KW Ton
52.1 0.860
52.3 0.830
52.5 0.802
52.6 0.789
52.7 0.775
53.0 0.751
53.3 0.728
14.0
14.5
15.0
15.2
15.5
16.0
16.5
EER Output
Tons
15.0 75.1
15.5 78.2
16.1 81.4
16.4 83.0
16.7 84.6
17.4 88.0
18.0 91.4
90°F
Input KW/
KW Ton
65.0 0.866
65.0 0.831
65.1 0.800
65.1 0.784
65.2 0.771
65.3 0.742
65.4 0.716
95°F
Input KW/Ton
EER Output
Tons
KW
13.9 73.0 68.3 0.936
14.4 76.0 68.3 0.899
15.0 79.1 68.4 0.865
15.3 80.7 68.4 0.848
15.6 82.3 68.4 0.831
16.2 85.6 68.5 0.800
16.8 88.9 68.6 0.772
EER
15.0
15.5
16.0
16.3
16.6
17.2
17.8
EER
15.1
15.7
16.2
16.5
16.7
17.3
17.8
EER
13.8
14.3
14.8
15.1
15.4
15.9
16.5
EER
95°F
Tons
KW
44.8 42.4 0.946 12.7
46.6 42.5 0.912 13.2
48.4 42.6 0.880 13.6
49.4 42.7 0.864 13.9
50.4 42.7 0.847 14.1
52.3 42.9 0.820 14.7
54.4 43.0 0.790 15.2
95°F
Tons
KW
58.8 54.8 0.932 12.9
61.1 55.0 0.900 13.3
63.5 55.3 0.871 13.8
64.7 55.4 0.856 14.0
66.0 55.5 0.841 14.3
68.5 55.7 0.813 14.7
71.1 56.0 0.788 15.2
EER
12.8
13.3
13.9
14.2
14.4
15.0
15.6
All performance data is based on a 10°F chilled water temperature drop through the evaporator and condenser. For total chiller performance multiply above output (TONS) and input (KW) by
the number of modules. For selection procedures see selection software at www.multistack.com.
5
GENERAL TABLE
MS010X
MS015X
MS020X
MS030X
MS050X
MS070X
MS085X
Compressor Type
Scroll
Scroll
Scroll
Scroll
Scroll
Scroll
Scroll
Dry Weight (lbs. each)
89
135
135
146
353
390
441
Normal Capacity (tons each)
5
7.5
10
15
25
30
40
Quantity
2
2
2
2
2
2
2
Oil Charge (pints per compressor)
3.5
6.9
6.9
6.9
14.4
13.3
13.3
Evaporator (Brazed Plate)
Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate
Weight (lbs. each)
80
80
80
105
180
243
292
Water Storage (gallons each)
1.9
1.9
1.9
2.9
4.8
7.3
10.1
Circuit Configuration
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Quantity
1
1
1
1
1
1
1
Header System (gallons)
7
7
7
7
7
7
14
Condenser
Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate
Weight (lbs. each)
90
90
90
135
220
313
340
Water Storage (gal. each)
2.4
2.4
2.4
4.1
6.6
10.1
12.3
Circuit Configuration
Dual
Dual
Dual
Dual
Dual
Dual
Dual
Quantity
1
1
1
1
1
1
1
Header System (gallons)
7
7
7
7
7
7
14
Refrigerant Type
R410A
R410A
R410A
R410A
R410A
R410A
R410A
Charge (lbs./circuit)
8
8
8
12
18
24
28
Number of Circuits
2
2
2
2
2
2
2
Operating Weight (lbs.)
1155
1200
1200
1625
2000
2200
2550
Shipping Weight (lbs.)
995
1040
1040
1450
1730
1900
2100
6
PRESSURE DROP TABLES
Evaporator Pressure Drop
Use Curve For
A: MS010X_W, MS015X_W, MS020X_W Evaporator
B: MS030X_W Evaporator
C: MS050X_W Evaporator
D: MS070X_W Evaporator
E: MS085X_W Evaporator
50
40
B
PRESSURE DROP - FT OF WATER
30
DE
C
20
10
9
8
7
6
5
4
3
600
500
400
WATER FLOW - GPM PER MODULE
300
200
60
70
80
90
100
50
40
30
20
2
Condenser Pressure Drop
Use Curve For
A: MS010X_W, MS015X_W, MS020X_W Condenser
B: MS030X_W Condenser
C: MS050X_W Condenser
D: MS070X_W Condenser
E: MS085X_W Condenser
50
40
B
PRESSURE DROP - FT OF WATER
30
C
D
E
20
10
9
8
7
6
5
4
3
600
500
400
300
200
60
70
80
90
100
50
40
30
20
2
WATER FLOW - GPM PER MODULE
7
ELECTRICAL DATA
External Input/Output Connections
System Wire & Fuse Sizing
Specifications
(Applicable codes may require different wire sizing)
1.Compressor Rated Load Amps (RLA) and Locked Rotor Amps (LRA)
Data: RLA/LRA
VOLTAGE
MS010X
MS015X
MS020X
MS030X
MS050X
MS070X
MS085X
208
15/123
25.3/225
29.8/239
49.8/340
67/605
89/599
N/A
230
14/123
22.8/225
27/239
45/340
60/605
80/599
N/A
460
6.8/62
11.4/114
13.5/125
22.5/173
30/272
40/310
51/368
575
5.5/50
8.8/80
10.8/80
18/132
24/215
32/239
N/A
2.Wiring Sizing: Minimum Circuit Ampacity (MCA)
MCA = (1.25 x RLA1*) + RLA2 + RLA3
MCA
50
65
85
100
115
130
150
175
200
230
255
285
300
350
400
460
500
3 CONDUCTORS 6 CONDUCTORS
1 CONDUIT
2 CONDUIT
8
—
6
—
4
—
3
—
2
—
1
—
1/0
—
2/0
—
3/0
—
4/0
—
250 MCM
—
300 MCM
1/0
—
2/0
—
3/0
—
4/0
—
4/0
—
250 MCM
3.Fuse Sizing: Maximum Fuse (MF), Type RK5 Fuse
MF= (2.25 x RLA1*) + RLA2 + RLA3
Where the MF does not equal a standard size fuse, the next larger size should
be used.
4.NOTES:
A.*RLA1 = RLA of the largest compressor in the system. RLA2 & RLA3 = RLA of
the other compressors in the system.
B.The total system Minimum Circuit Ampacity (aMCA) shall not exceed 500A.
C. Wire sizing is based on the Nat. Electr. Code (NEC) rating for 75°C copper
wire, with 3 wires per conduit.
D.Wiring Distance from branch circuit shall not exceed 100ft.
8
SCHEMATICS
Required Chilled Water Piping
STRAINER ISOLATION VALVE
1/2” SENSOR POCKETS SUPPLIED BY MULTISTACK
Installation of sensor pocket (weld-a let) is
recommended at 30” from end of chiller, supplied
and installed by others
PRESSURE TAPS
SUPPLIED AND
INSTALLED BY OTHERS
CHILLED WATER PUMP
STANDARD “Y” STRAINER
SUPPLIED AND INSTALLED BY
MULTISTACK
SUPPLIED AND INSTALLED
BY OTHERS
SUPPLIED AND INSTALLED BY OTHERS.
*NOTE: SELECT STRAINER BASED ON
WATER QUALITY
SP
FROM
BUILDING LOAD
SP
TO
BUILDING LOAD
MULTISTACK
CHILLER
FS
CHILLER ISOLATION VALVES
SUPPLIED AND INSTALLED BY OTHERS
FLOW SWITCH
BY OTHERS
Condenser Schematic with Head Pressure Control
PRESSURE TAPS
SUPPLIED AND INSTALLED BY
MULTISTACK
1/2” SENSOR POCKETS SUPPLIED BY MULTISTACK
Installation of sensor pocket (weld-a-let) is recommended
at 30” from end of chiller, supplied and installed by others
FLOW SWITCH
BY OTHERS
CONDENSER ISOLATION VALVES
SP
TO
COOLING
TOWER
FS
SP
FROM
COOLING
TOWER
MULTISTACK
CHILLER
STANDARD “Y” STRAINER
SUPPLIED AND INSTALLED BY OTHERS.
NOTE: SELECT STRAINER MESH BASED ON
WATER QUALITY
STRAINER ISOLATION VALVE
BY OTHERS
3-WAY CONDENSER
BY-PASS VALVE
SUPPLIED AND INSTALLED IN
BUILDING BY OTHERS
CONDENSER WATER PUMP
9
CHILLER DRAWING
Chiller Installation Dimensions: MS015X, MS020X, MS030X, MS050X, MS070X
Plan View
12”
MIN
28”
42”
REQUIRED
42”
RECOMMENDED
Front Elevation View – Chiller Length
NOTE: THE MAIN POWER
CONNECTION FOR A SINGLE
MODULE CHILLER IS LOCATED
INSIDE MODULE.
10
32”
RECOMMENDED
CHILLER DRAWING
Chiller Installation Dimensions: MS085X
11
TOTAL ACCESS DRAWING
Chiller Installation Dimensions: MS015X, MS020X, MS030X, MS050X, MS070X
Rail = Number of Modules x Width + 8
12
TOTAL ACCESS DRAWING
Chiller Installation Dimensions: MS085X
13
CONTROLLER SCHEMATICS
Chiller Data
ENT. CHILLED WATER TEMP.
LVG. CHILLED WATER TEMP
VERIFY CHILLED WATER FLOW
ENT. COND. WATER TEMP
LVG. COND. WATER TEMP
VERIFY COND. WATER FLOW
CUSTOMER INTERLOCKS
CHILLED WATER
PUMP OPERATION
CONDENSER WATER
PUMP OPERATION
BUILDING AUTOMATION
SOLUTIONS
FAULT NOTIFICATION
FULL LOAD RELAY
INTEROPERABILITY
PORTALS
MULTIFLUSH OUTPUT
CHILLED WATER RESET INPUT/
LOAD LIMIT RESET INPUT
RS485 Serial Card
MASTER CONTROL
Can stage a maximum of 15 modules
(30 compressors)
PCO Net RS485 Interface Board
REMOTE DISPLAY
(optional)
Module Data
MODULE CONTROL PANEL
DATA FROM REFRIGERATION SYSTEM “A”
HP TRANSDUCER
HIGH PRESSURE SWITCH
LP TRANSDUCER
COMP. MOTOR PROTECTION
SUCTION TEMPERATURE
DATA FROM REFRIGERATION SYSTEM “B”
HP TRANSDUCER
HIGH PRESSURE SWITCH
LP TRANSDUCER
COMP. MOTOR PROTECTION
SUCTION TEMPERATURE
CIRCUIT FAULT CONDITION
CIRCUIT FAULT CONDITION
HIGH VOLTAGE CONTROL PANEL
CIRCUIT “A” COMPRESSOR CONTACTOR
CIRCUIT “B” COMPRESSOR CONTACTOR
14
PCO Web Ethernet Interface Board
BACNET™
• MSTP
• ETHERNET
• TCP/IP
MODBUS™ (RTU)
SNMP PROTOCOL
LONMARK™
MECHANICAL SPECIFICATIONS
General
Central Control System
Modules are ETL listed in accordance with UL standard 1995 and are CSA certified per
standard C22.2 #236 on all heat exchangers.
Scheduling of the various compressors is performed by the microprocessor control.
Compressors operating schedules are sequenced every 24 hours to assure distribution
of run time. This microprocessor monitors the following on each refrigeration system:
Modules ship wired and charged with refrigerant and oil, ready for installation. All
modules are factory run tested prior to shipment.
Compressors, heat exchangers, piping and controls are mounted on a heavy gauge
steel frame. Electrical controls, contactors, and relays for each module, are mounted
within that module.
Chilled and Condensed Water Mains
Each module includes supply and return mains for both chilled and condensed water.
Grooved end connections are provided for interconnection to 6” US standard (6.625
outside diameter) customer piping with victaulic type couplings. Standard units
include 30 mesh in-line strainers in the condenser and evaporator supply headers. Also
standard is the Multiflush™ automatic debris removal system.
Evaporators and Condensers
Each evaporator and condenser is a brazed plate heat exchanger constructed of 316
stainless steel; designed, tested and stamped for a 650 psig working pressure.
Compressors
Each module contains two separate refrigeration systems. The hermetic compressor in
each system is mounted to the frame with rubber-in-shear isolators. Each system also
includes high discharge pressure and low suction pressure cutouts.
•Discharge pressure cut-out
•Suction pressure cut-out
•Compressor motor protector
•Suction temperature
•Evaporator entering and leaving chilled water temperature
A fault condition from these controls or sensors will cause a shutdown of that
compressor with the transfer of load requirements to another available compressor.
When a fault occurs, the microprocessor records the reading of conditions at the
time and stores the data for recall by operating personnel. This information can be
recalled using the keys and displayed on the LCD screen. A running history of the
fault occurrence conditions is maintained (up to the last 20 occurrences) should it be
required for trouble shooting.
Individual monitoring of leaving chilled water temperature
from each refrigeration system is designed to protect against freeze-up.
The control system monitors entering and leaving chilled water temperatures to
determine system load and selects the number of compressors required. Response time
and set points are adjustable.
Options
•Variable Flow
•Inside Out/Total Access Design
•Pump Options
•Lifting Frame Options
•Dry Cooler Options
15
Originators…
Multistack invented the modular water chiller. It started with a radically simple idea: chiller modules that could be brought into the equipment room one at
a time, through standard doorways and down elevators, to form a fully integrated chiller system. The idea launched a revolution and transformed Multistack
into a leader in the commercial water-chiller industry.
Innovators…
Multistack perfected the modular chiller and leads the industry in innovative and environmentally friendly modular solutions. Since founding in the late
1980s, Multistack has engineered, manufactured, and distributed an impressive array of modular air conditioning firsts: the first on-board strainer, the
first modular automatic blow-down device, the first modular chiller for variable flow, the first modular chiller-heater (heat pump), the first modular
heat-recovery chiller, the first modular air-to-water heat pump, the first modular chiller to utilize MagLev™ compressor technology, and the first modular chiller to
utilize R-410A.
Never the Imitators…
Multistack sets the standard in the industry for superior customer service, fast and on time shipment, superior product quality, and new product development.
Our pioneering leadership in environmental issues is well documented. If you want the best, be sure to specify the original – Multistack®.
1065 Maple Avenue P.O. Box 510 Sparta, WI 54656
Phone 608-366-2400 • Fax 608-366-2450
www.multistack.com
Made in the USA
F148_0412

Water Cooled Chiller

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