Bard Q24H3-A, Installation Instructions Manual

Page: 5 / 42

Manual 2100-652A
Page
5 of 42
MODEL
Rated
Volts &
Phase
No.
Field
Power
Circuits
Single Circuit Dual Circuit

Minimum
Circuit
Ampacity

Maximum
External
Fuse or Ckt.
Brkr.

Field
Power
Wire Size

Ground
Wire

Minimum
Circuit
Ampacity

Maximum
External Fuse or
Ckt. Breaker

Field Power
Wire Size

Ground
Wire Size
Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B
Q24H3-A0Z
A05
A10 230/208-1
1
1
1 or 2
22
47
72 30
50
80 10
8
4
10
10
8 22 50 30 50 10 8 10 10
Q24H3-B0Z
B06
B09 230/208-3
1
1
1 17
35
44 20
35
45 12
8
8
12
10
10
Q24H3-C0Z
C06
C09 460-3
1
1
1 10
19
23 15
20
25 14
12
10 14
12
10
Q30H3-A0Z
A05
A10 230/208-1
1
1
1 or 2
27
52
77 35
60
80 8
8
4 10
10
8 27 50 30 60 10 8 10 10
Q30H3-B0Z
B06
B09
B12
230/208-3
1
1
1
1 19
37
46
55 25
40
50
60 10
8
8
6
10
10
10
10
Q30H3-C0Z
C06
C09
C12
460-3
1
1
1
1 13
22
26
31 15
25
30
35 14
10
10
8
14
10
10
10
Q36H3-A0Z
A05
A10

A15
230/208-1
1
1
1 or 2
1 or 2
27
52
77
81 40
60
80
90 8
6
4
4 10
10
8
8 27
31 50
50 40
40 50
50 8
8 8
8 10
10 10
10
Q36H3-B0Z
B06
B09

B15
230/208-3
1
1
1
1 20
38
47
51 30
40
50
60 10
8
8
6
10
10
10
10
Q36H3-C0Z
C06
C09

C15
460-3
1
1
1
1 14
23
28
28 15
25
30
30 14
10
10
10 14
10
10
10
Q43H3-A0Z
A05
A10

A15
230/208-1
1
1
1 or 2
1 or 2
31
57
81
83 45
60
90
90 8
6
4
4 10
10
8
8 31
33 50
50 45
45 50
50 8
8 8
8 10
10 10
10
Q43H3-B0Z
B06
B09

B15
230/208-3
1
1
1
1 26
44
53
53 35
50
60
60 8
8
6
6 10
10
10
10
Q43H3-C0Z
C06
C09

C15
460-3
1
1
1
1 13
22
27
27 15
25
30
30 14
10
10
10 14
10
10
10
Q48H3-A0Z
A05
A10

A15
230/208-1
1
1 or 2
1 or 2
1 or 2
35
60
85
85 50
70
90
90 8
6
4
4 10
8
8
8 35
35
35 25
50
50 50
50
50 25
50
50 8
8
8 10
8
8
10
10
10 10
10
10
Q48H3-B0Z
B06
B09

B15
230/208-3
1
1
1
1 28
47
56
56 40
50
60
60 8
8
6
6 10
10
10
10
Q48H3-C0Z
C06
C09

C15
460-3
1
1
1
1 15
24
28
28 20
25
30
30 12
10
10
10 12
10
10
10
Q60H3-A0Z
A05
A10

A15
230/208-1
1
1 or 2
1 or 2
1 or 2
46
71
96
96 60
90
100
100
8
4
3
3 10
8
8
8 46
46
46 25
50
50 60
60
60 25
50
50 8
8
8 10
8
8
10
10
10 10
10
10
Q60H3-B0Z
B09

B15
230/208-3
1
1
1 34
60
60 45
60
60 8
6
6 10
10
10
Q60H3-C0Z
C09

C15
460-3
1
1
1 17
31
31 25
35
35 10
8
8
10
10
10
TABLE 2
Electrical Specifications

Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors.

Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric Code (latest
revision), article 310 for power conductor sizing.
Caution: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special
attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than three conductors are in a raceway.

Maximum KW that can operate with heat pump on is 10KW. Other 5KW energizes during emergency heat only.

Maximum KW that can operate with heat pump on is 9KW. Other 6KW energizes during emergency heat only.