Wall-Mount Unit Wiring; Main Power Wiring; Unit Voltage Wiring - Bard FUSION-TEC HR58APA Installation Support Materials

WALL-MOUNT UNIT WIRING

WARNING
!
Electrical shock hazard.
Have a properly trained individual perform
these tasks.
Failure to do so could result in electric shock
or death.

Main Power Wiring

Refer to the unit rating plate or Table 1.3 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 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.
Electrical Specifications – HR58AP Series
Rated Volts
Model
& Phase
HR58 A0Z
230/208-1
A05
HR58 B0Z
230/208-3
B06
 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.
Page 16 of 53
TABLE 1.3
No. Field

Power
Minimum Circuit
Circuits
Ampacity
1 43
1 43
1 30
1 30
The unit rating plate and Table 1.3 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 assure that there will be no nuisance tripping due to
the momentary high starting current of the compressor
motor.
The main unit circuit breaker disconnect access is
located on the front panel of the unit. Located at the
upper right corner of this panel is the rubber circuit
breaker boot. This allows unit power to be disconnected
without panel removal.
Route all field wires in channel under the control panel
as shown in Figure 1.9.
See Figure 1.10 to reference VAC landing points.

Unit Voltage Wiring

230/208V 1 phase and 3 phase equipment use dual
primary voltage transformers. All equipment leaves the
factory wired on 240V tap. It is very important that
the correct voltage tap is used. For 208V operation,
reconnect from 240V to 208V tap (see Figure 1.11).
The acceptable operating voltage range for the 240 and
Single Circuit

Maximum
Field Power
External Fuse or
Wire Size
Circuit Breaker
60
60
45
45


Ground Wire
8 10
8 10
8 10
8 10