Table 2 Electrical Specifications - Bard Q24H2-A Installation Instructions Manual

No.
Rated
Field
MODEL Volts &
Power
Phase
Circuits
Q24H2-A0Z 1
A05 230/208-1 1
A10 1 or 2
Q24H2-B0Z 1
B06 230/208-3 1
B09 1
Q24H2-C0Z 1
C06 460-3 1
C09 1
Q30H2-A0Z 1
A05 230/208-1 1
A10 1 or 2
Q30H2-B0Z 1
B06 1
230/208-3
B09 1
B12 1
Q30H2-C0Z 1
C06 1
460-3
C09 1
C12 1
Q36H2-A0Z 1
A05 1
230/208-1
A10 1 or 2
 A15 1 or 2
Q36H2-B0Z 1
B06 1
230/208-3
B09 1
 B15 1
Q36H2-C0Z 1
C06 1
460-3
C09 1
 C15 1
Q42H2-A0Z 1
A05 1
230/208-1
A10 1 or 2
 A15 1 or 2
Q42H2-B0Z 1
B06 1
230/208-3
B09 1
 B15 1
Q42H2-C0Z 1
C06 1
460-3
C09 1
 C15 1
Q48H2-A0Z 1
A05 1 or 2
230/208-1
A10 1 or 2
 A15 1 or 2
Q48H2-B0Z 1
B06 1
230/208-3
B09 1
 B15 1
Q48H2-C0Z 1
C06 1
460-3
C09 1
 C15 1
Q60H2-A0Z 1
A05 1 or 2
230/208-1
A10 1 or 2
 A15 1 or 2
Q60H2-B0Z 1
B09 230/208-3 1
 B15 1
Q60H2-C0Z 1
C09 460-3 1
 C15 1
 Maximum size of the time delay fuse or HACR type 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.
TABLE 2
ELECTRICAL SPECIFICATIONS
Single Circuit
 

Maximum Field
Minimum
External Power
Circuit
Fuse or Wire
Ampacity
Ckt. Brkr. Size
22 30 10
47 50 8
72 80 4
17 20 12
35 35 8
44 45 8
10 15 14
19 20 12
23 25 10
25 35 8
50 50 8
75 80 4
18 25 10
37 40 8
45 45 8
55 60 6
12 15 14
21 25 10
25 25 10
30 30 10
31 45 8
56 60 6
81 90 4
83 90 4
25 30 10
43 50 8
52 60 6
53 60 6
12 15 14
21 25 10
26 30 10
27 30 10
34 50 8
59 60 6
84 90 4
84 90 4
25 35 8
43 50 8
52 60 6
53 60 6
13 15 14
22 25 10
26 30 10
27 30 10
38 50 8
63 70 6
88 90 3
88 90 3
29 40 8
47 50 8
56 60 6
56 60 6
15 20 12
24 25 10
28 30 10
28 30 10
45 60 8
70 90 4
95 100 3
95 100 3
31 45 8
58 60 6
58 60 6
17 25 10
31 35 8
31 35 8
 Minimum  Maximum
Circuit External Fuse

Ampacity or Ckt. Breaker
Ground
Wire
Ckt. A Ckt. B Ckt. A
10
10
8 22 50 30
12
10
10
14
12
10
10
10
8 25 50 30
10
10
10
10
14
10
10
10
10
10
8 31 50 45
8 33 50 45
10
10
10
10
14
10
10
10
10
10
8 34 50 45
8 34 50 45
10
10
10
10
14
10
10
10
10
8 38 25 50
8 38 50 50
8 38 50 50
10
10
10
10
12
10
10
10
10
8 45 25 60
8 45 50 60
8 45 50 60
10
10
10
10
10
10
Dual Circuit
 
Field Power Ground
Wire Size Wire Size
Ckt. B Ckt. A Ckt. B Ckt. A
50 10 8 10
50 10 8 10
50 8 8 10
50 8 8 10
50 8 8 10
50 8 8 10
25 8 10 10
50 8 8 10
50 8 8 10
25 8 10 10
50 8 8 10
50 8 8 10
Manual 2100-601B
Page 5 of 42
Ckt. B
10
10
10
10
10
10
10
10
10
10
10
10