Wall-Mount Unit Supply Wiring - Bard D36A2P/BLD.10304 Installation And Service Instructions Manual

All models covered by this installation
instruction require dual power sources:
VAC utility power to run the compressor, heat
and outdoor fan motor and -48 VDC power
to operate the indoor blower and DC free
cooling damper.
These units require a positive ground
-48 VDC copper conductor field wire
connection. Refer to the unit wiring diagram
for more information.
Rated Volts,
Model
Hertz & Phase
D36A2PA05/D36L2PA05
208/230-60-1
D36A2PA10/D36L2PA10
D36A2PB06/D36L2PB06
208/230-60-3
D36A2PB09/D36L2PB09
D42A2PA05/D42L2PA05
208/230-60-1
D42A2PA10/D42L2PA10
D42A2PB06/D42L2PB06
208/230-60-3
D42A2PB09/D42L2PB09
D48A2PA05/D48L2PA05
208/230-60-1
D48A2PA10/D48L2PA10
D48A2PB06/D48L2PB06
208/230-60-3
D48A2PB09/D48L2PB09
D60A2PA05/D60L2PA05
208/230-60-1
D60A2PA10/D60L2PA10
D60A2PB06/D60L2PB06
208/230-60-3
D60A2PB09/D60L2PB09
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.
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 (3) current carrying conductors are in a
raceway.
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 Electric Code and all local codes.

WALL-MOUNT UNIT SUPPLY WIRING

Electrical shock hazard.
Have a properly trained individual perform
these tasks.
Failure to do so could result in electric shock
or death.
Refer to the unit rating plate or Table 1.1 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. 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.
TABLE 1.1
Electrical Specifications
AC POWER CIRCUIT
Minimum Maximum
Circuit External Fuse or
Ampacity Ckt. Breaker
26 45
52 60
18 25
27.1 30
26 40
52 60
18.6 30
27.1 30
29 50
52 60
18.8 30
27.1 30
34.4 60
52 60
27.5 35
27.5 35
WARNING
!
DC POSITIVE GROUND POWER CIRCUIT
Field Power/ Minimum
Ground Wire Circuit External Fuse or
Size Ampacity
8 17.5
6 17.5
10 17.5
10 17.5
8 17.5
6 17.5
10 17.5
10 17.5
8 17.5
8 17.5
10 17.5
10 17.5
6 17.5
6 17.5
8 17.5
8 17.5
Maximum Field Power/
Ground Wire
Ckt. Breaker Size
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
20 12
Manual 2100-620A
Page 15 of 107