Bard FUSION-TEC WR Series, Сборник литературы

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Manual 2100-704C
Page 18 of 47
WALL-MOUNT UNIT WIRING
Main Power Wiring
Refer to the unit rating plate or Table 3 for wire sizing
information and maximum fuse or circuit breaker size.
Each outdoor unit is marked with a “Minimum Circuit
Ampacity”. The field wiring used must be sized to carry
that amount of current. Depending on the installed KW
of electric heat, there may be two field power circuits
Electrical shock hazard.
Have a properly trained individual perform
these tasks.
Failure to do so could result in electric shock
or death.
!
WARNING
required. If this is the case, the unit rating plate will
so indicate. All models are suitable only for connection
with copper wire. Each unit and/or wiring diagram
will be marked “Use Copper Conductors Only”. These
instructions
must be adhered to. Refer to the National
Electrical Code (NEC) for complete current carrying
capacity data on the various insulation grades of wiring
material. All wiring must conform to NEC and all local
codes.
The unit rating plate and Table 3 list fuse and wire
sizes (75°C copper) for all models including the most
commonly used heater sizes. Also shown are the
number of field power circuits required for the various
models with heaters.
The unit rating plate lists a maximum circuit breaker or
fuse that is to be used with the equipment. The correct
size must be used for proper circuit protection and also to
ensure that there will be no nuisance tripping due to the
momentary high starting current of the compressor motor.
TABLE 3
Electrical Specifications
Model
Rated Volts
& Phase
No. Field
Power
Circuits
Single Circuit

Minimum Circuit
Ampacity

Maximum
External Fuse or
Circuit Breaker

Field Power
Wire Size

Ground Wire
WR35 A0Z, AMZ
A01, AM1
A05, AM5 230/208-1
1
1
1 26
26
30 35
35
35 8
8
8 10
10
10
HR35 B0Z
B05
230/208-3
1
1 25
25 30
30 10
10 10
10
WR36 A0Z, AMZ
A01, AM1
A05, AM5 230/208-1
1
1
1 26
26
30 35
35
35 8
8
8 10
10
10
HR36 B0Z
B05
230/208-3
1
1 25
25 30
30 10
10 10
10
WR58 A0Z, AMZ
A01, AM1
A05, AM5 230/208-1
1
1
1 43
43
43 60
60
60 8
8
8 10
10
10
HR58 B0Z
B05
230/208-3
1
1 30
30 45
45 8
8 10
10

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
Electrical code (latest version), Article 310 for power conductor sizing.
CAUTION: When more than one field power 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 current
carrying 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 the National Electrical Code and all local codes.