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These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest version), Article 310 for power conductor sizing.
Maximum size of the time delay fuse or “D” type circuit breaker for protection of field wiring conductors.
Based on 75°C copper wire. All wiring must conform to all local and national electrical codes.
*
F14 only offered on W**A units.
CAUTION:
When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attentionto Note 8 of Table 310 regarding Ampacity
Adjustment Factors when more than three conductors are in a raceway.
IMPORTANT:
While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with all existing local codes.
Model
Rated
Volts
and Phases
Operating
Voltage
Range
No. Field
Power
Circuits
Minimum
Circuit
Ampacity
Maximum
External Fuse
or Ckt. Brkr.
Field
Power
Wire Size
Ground Wire
Size
W24AB-D0Z
D05
D08
240/220-1
240/220-1
240/220-1
198 - 254
1
1
1
15
28
44
20
30
45
12
10
8
12
10
10
W24A/LB-F0Z
F05
415/380-3
342 - 456
1
1
10
11
15
15
14
14
14
14
W30AB-D0Z
D05
D10
240/220-1
198 - 254
1
1
1
15
28
54
20
30
60
12
10
6
12
10
10
W30AB-F0Z
F07
F12
415/380-3
342 - 456
1
1
1
10
16
26
15
20
30
14
12
10
14
12
10
W36AB-D0Z
D05
D10
240/220-1
198 - 254
1
1
1
17
28
54
25
30
60
8
8
6
10
10
10
W36AB-E0Z
E06
E12
240/220-3
198 - 254
1
1
1
17
21
39
25
25
40
10
10
8
10
10
10
W36A/LB-F0Z
F07
F12
415/380-3
342 - 456
1
1
1
10
14
22
15
15
25
14
12
10
14
12
10
W42AC-E0Z
E09
E15
240/220-3
198 - 254
1
1
1
21
30
48
30
30
50
10
8
8
10
10
10
W42A/LC-F0Z
F07
* F14
415/380-3
342 - 456
1
1
1
12
16
29
15
20
30
14
12
10
14
12
10
W48AC-E0Z
E09
E15
240/220-3
198 - 254
1
1
1
23
31
50
35
35
50
8
8
8
10
10
10
W48A/LC-F0Z
F07
* F14
415/380-3
342 - 456
1
1
1
12
17
31
15
20
35
14
12
8
14
12
10
W60AC-E0Z
E09
E15
240/220-3
198 - 254
1
1
1
25
32
50
35
35
50
8
8
8
10
10
10
W60A/LC-F00
F07
* F14
415/380-3
342 - 456
1
1
1
15
18
31
15
20
35
12
12
8
12
12
10
W72A/LC-F00
F07
F14
400/380-3
342 - 440
1
1
1
21
21
32
25
25
35
10
10
8
10
10
10
SUPPLEMENTAL INSTRUCTIONS
50 HZ ELECTRICAL DATA
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 7960-810
Supersedes:
NEW
Date: 3-1-19
Summary of Contents for MULTI-TEC W18ABP Series
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Page 19: ...Manual 2100 479 Page 7 of 11 FIGURE 2 TYPICAL HEAT PUMP SYSTEM COOLING CYCLE MIS 368 ...
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