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Table 4 - Electrical Data (Continued)
50TCM
Drive
Unit Size
package
Supply
Indoor Motor
V / Ph / Hz
Standard
D12
400/3/50
Medium
Standard
D14
400/3/50
Medium
Legend and Notes for Electrical Data Table
FLA - Full Load Amps
IFM - Indoor (Evaporator) Fan Motor
LRA - Locked Rotor Amps
MCA - Minimum Circuit Amps
Minimum Voltage: 360V , Maximum Voltage: 440V on 400/3/50
Unbalanced 3-Phase Supply Voltage
Never operate a motor where phase imbalance in supply voltage is greater than 2%.
Use the following formula to determine the percentage of voltage imbalance
Maximum Deviation From Average Voltage
= 100 X
Average Voltage
Example: Supply Voltage is 400V - 3Ph - 50Hz
AB = 392v
Average Voltage =
BC = 404v
AC = 395v
=
IMPORTANT: If the supply voltage phase imbalance is more than 2% contact your local electric utility company
Compressor
No.1
No.2
Power
RLA LRA RLA LRA Qty HP FLA HP
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
7.8 51.5 7.8 51.5
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7
64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
9.7 64.0 10.6 74.0
OFM - Outdoor (Condenser) Fan Motor
RLA - Rated Load Amps
APP - Application power at rated power supply voltage
MOCP - Maximum Overcurrent Protection
392 + 404 + 395
3
1191
= 397V
3
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%
OFM
IFM
FLA
1
1
3.4
2.0
2.6
1
1
3.4
2.0
2.6
CRHEATER116A00
1
1
3.4
2.0
2.6
CRHEATER113A00
1
1
3.4
2.0
2.6
CRHEATER114A00
1
1
3.4
2.0
2.6
CRHEATER115A00
1
1
3.4
2.0
2.6
CRHEATER114A00,116A00
1
1
3.4
3.1
4.4
1
1
3.4
3.1
4.4
CRHEATER116A00
1
1
3.4
3.1
4.4
CRHEATER113A00
1
1
3.4
3.1
4.4
CRHEATER114A00
1
1
3.4
3.1
4.4
CRHEATER115A00
1
1
3.4
3.1
4.4
CRHEATER114A00,116A00
1
1
3.4
2.4
3.4
1
1
3.4
2.4
3.4
CRHEATER116A00
1
1
3.4
2.4
3.4
CRHEATER113A00
1
1
3.4
2.4
3.4
CRHEATER114A00
1
1
3.4
2.4
3.4
CRHEATER115A00
1
1
3.4
2.4
3.4
CRHEATER114A00,116A00
1
1
3.4
3.9
7.4
1
1
3.4
3.9
7.4
CRHEATER116A00
1
1
3.4
3.9
7.4
CRHEATER113A00
1
1
3.4
3.9
7.4
CRHEATER114A00
1
1
3.4
3.9
7.4
CRHEATER115A00
1
1
3.4
3.9
7.4
CRHEATER114A00,116A00
Determine maximum deviation from average voltage.
(AB) 397 - 392 =5v
(BC) 404 - 397 =7v
(AC) 457 - 397 =2v
Maximum Deviation is 7v.
Determine Percentage Voltage Imbalance.
% Voltage
Imbalance
Page 23
Electric Heater
Application
Heater P.N
(KW)
-
-
9.7
11.5
19.3
22.9
29
-
0
9.7
11.5
19.3
22.9
29
-
-
9.7
11.5
19.3
22.9
29
-
-
9.7
11.5
19.3
22.9
29
7
= 100 X
397
MCA
MOCP
FLA
-
23.6
30
13.9
23.6
30
16.5
23.9
30
27.9
38.1
40
44.6
45
33.1
41.8
55.5
60
0.0
25.4
30
13.9
25.4
30
26.1
30
16.5
27.9
40.4
45
33.1
46.9
50
41.8
57.8
60
-
29.5
35
13.9
29.5
35
16.5
29.5
35
39.1
40
27.9
33.1
45.6
50
56.5
60
41.8
-
33.5
40
33.5
40
13.9
33.5
40
16.5
44.1
45
27.9
50.6
60
33.1
61.5
70
41.8
= 1.76%
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