WALL-MOUNT UNIT SUPPLY WIRING
Main Power Wiring
Refer to the unit rating plate or Table 1 or Table 2
(page 18) 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 or three 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.
The unit rating plate and Tables 1 and 2 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.
Route all field wires to the right of the wire shield as
shown in the circuit routing label found in Figure 9
(and also on the wall-mount units).
See Figure 10 to reference VAC landing points.
The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect. To
convert for the locking capability, bend the tab located
in the bottom left-hand corner of the disconnect
opening under the disconnect access panel straight
out. This tab will now line up with the slot in the door.
When shut, a padlock may be placed through the hole
in the tab preventing entry.
FIGURE 9
Circuit Routing Label
FIGURE 10
VAC Supply Wiring Landing Points
NOTE: Right-hand access model wiring landing points
are shown here; left-hand access models will
mirror this image.
Field
Wiring
Factory
Wiring
2.500
5.000
REV.
DATE
DESCRIPTION
ECN NO DRN CHK APR
A
3/17/2014 ADDED FRENCH VERSION
11182 BD SD RP
A
WIRING ROUTING LABEL
7961-393
1:4
3/17/2014
DAY
SD
RP
NOTICE / AVIS
ROUTE ALL HIGH VOLTAGE FIELD
WIRES TO THE RIGHT OF THE WIRE
SHIELD AS SHOWN
ACHEMINER LES FILS HAUTE
TENSION SUR LA DROITE VERS LA
PROTECTION, COMME INDIQUÉ
CIRCUIT BREAKER
/DISJONCTEUR
WIRE SHIELD /
PROTECTION
CO
M
PR
ESS
OR
CO
NT
AC
TO
R /
CO
NT
AC
TE
UR
DU
CO
M
PR
ESSE
UR
MATERIAL : OUTDOOR VINYL
BACKGROUND COLOR : WHITE / SAFETY BLUE
PRINTING COLOR : BLACK 1/8" LETTERING
SIZE : 2.500 X 5.000
FORMAT : ROLL
7961-393
WHITE 3/16" LETTERING
7961-393
A
RP
3/17/2014
DRAWN BY
SCALE
DISTRIBUTION
DWG.
CHECKED
APPROVED
NO.
NO.
DATE
PART
NAME
MAT'L
Bard Mfg. Co.
Bryan, Ohio
PART
1 2 3 4 5
Low 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. The acceptable
operating voltage range for the 240 and 208V taps are:
240V Tap (253 – 216) and 208 Tap (220 – 197).
NOTE:
The voltage should be measured at the field
power connection point in the unit and while
the unit is operating at full load (maximum
amperage operating condition.
For low voltage wiring, an 18 gauge copper, color-coded
cable is recommended.
!
WARNING
Electric shock hazard.
Have a properly trained individual perform
these tasks.
Failure to do so could result in electric shock
or death.
Manual 2100-678
Page
16 of 24
