Wall-Mount Unit Wiring; Main Power Wiring; Low Voltage Wiring - Bard MULTI-TEC W18ABP Series Literature Assembly

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 Tables 1, 2 or 3 (pages
16-18) 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 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, 2 and 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.
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.

WALL-MOUNT UNIT WIRING

Circuit Routing Label
ROUTE ALL HIGH VOLTAGE FIELD
WIRES TO THE RIGHT OF THE WIRE
ACHEMINER LES FILS HAUTE
TENSION SUR LA DROITE VERS LA
PROTECTION, COMME INDIQUÉ
5.000
VAC Supply Wiring Landing Points
Factory Wiring
A 3/17/2014 ADDED FRENCH VERSION
REV. DATE DESCRIPTION
NOTE: Right-hand access model wiring landing points
are shown here; left-hand access models will
mirror this image.

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.
FIGURE 9
NOTICE / AVIS
WHITE 3/16" LETTERING
SHIELD AS SHOWN
CIRCUIT BREAKER
/DISJONCTEUR
WIRE SHIELD /
PROTECTION
7961-393
2.500
FIGURE 10
MATERIAL : OUTDOOR VINYL
BACKGROUND COLOR : WHITE / SAFETY BLUE
PRINTING COLOR : BLACK 1/8" LETTERING
SIZE : 2.500 X 5.000
Field Wiring
FORMAT : ROLL
MAT'L
PART
NAME
PART
NO.
DATE
SCALE
11182 BD SD RP
CHECKED
DISTRIBUTION
ECN NO DRN CHK APR
MIS-4171
Manual 2100-713A
Page
WIRING ROUTING LABEL
7961-393 A A
7961-393 DWG.
NO.
3/17/2014 3/17/2014
1:4 DAY
DRAWN BY
Bard Mfg. Co.
SD RP RP
Bryan, Ohio
APPROVED
1 2 3 4 5
MIS
15 of 44